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Iraninasab S, Homaei A, Mosaddegh E, Torkzadeh-Mahani M. Polyamidoamine Dendrimers Functionalized with ZnO-Chitosan Nanoparticles as an Efficient Surface for L-asparaginase Immobilization. Appl Biochem Biotechnol 2024; 196:971-991. [PMID: 37285001 DOI: 10.1007/s12010-023-04590-y] [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] [Accepted: 05/26/2023] [Indexed: 06/08/2023]
Abstract
In this study, the third-generation polyamidoamine dendrimer was functionalized with a 5-amino-1H-tetrazole heterocycle to load the synthesis enzyme and its surface groups. Then, chitosan was attached to the dendrimer by a suitable linker, and finally, zinc oxide nanoparticles were inserted into dendrimer cavities to increase loading. FTIR, FESEM, TEM, and DLS analysis showed that this new dendrimer has specific branches, and ZnO nanoparticles were spread between the branches and connected with the branches and chitosan biopolymer. Also proved the presence of stabilized L-asparaginase enzyme and ZnO nanoparticles in the designed system. Furthermore, the extent of L-asparaginase enzyme loading and release was investigated in the laboratory with a dialysis bag. Examining the toxicity of the new third-generation polyamidoamine (PAMAM) dendrimeric nanocarrier based on chitosan-zinc oxide biopolymer (PAMAM-G3@ZnO-Cs nanocarrier) on the Jurkat cell line (human acute lymphoblastic leukemia) at pH 7.4 showed that this nanocarrier effectively encapsulates the drug L-asparaginase and slowly releases it and also preventing the growth of cancer cells. The activity of the loaded enzyme in the nanocarrier and the free enzyme was calculated. During the investigations, it was found that the enzyme attached to the nanocarrier is more stable than the free enzyme at optimal pH and temperature and at high temperatures, acidic and basic pHs. Vmax and Km values were lower for loaded enzymes. The synthesized PAMAM-G3@ZnO-Cs nanocarrier can be a promising candidate in the pharmaceutical industry and medical science for cancer treatment due to its biocompatibility, non-toxicity, stability, and slow release of L-asparaginase.
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Affiliation(s)
- Sudabeh Iraninasab
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran
| | - Ahmad Homaei
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran.
| | - Elaheh Mosaddegh
- Department of New Materials, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, PO Box 76315-117, Kerman, Iran
| | - Masoud Torkzadeh-Mahani
- Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
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Rashad AY, Daabees HG, Elagawany M, Shahin M, Abdel Moneim AE, Rostom SAF. A New Avenue for Enhanced Treatment of Hyperuricemia and Oxidative Stress: Design, Synthesis and Biological Evaluation of Some Novel Mutual Prodrugs Involving Febuxostat Conjugated with Different Antioxidants. Bioorg Chem 2023; 140:106818. [PMID: 37688830 DOI: 10.1016/j.bioorg.2023.106818] [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: 06/02/2023] [Revised: 08/13/2023] [Accepted: 08/27/2023] [Indexed: 09/11/2023]
Abstract
Febuxostat (FEB) is the first non-purine xanthine oxidase inhibitor (XOI) used for the treatment of hyperuricemia and gout. The oxidative stress induced by reactive oxygen species (ROS) which accompany purine metabolism by XO, could contribute to cellular damage and several pathological conditions. In this view, the present work addresses the evaluation of combining the hypouricemic effect of FEB and the free radical scavenging potential of various natural antioxidants in a single chemical entity by implementing the "mutual prodrug" strategy. Accordingly, a series of five ester prodrugs containing FEB together with different naturally occurring antioxidants namely, thioctic acid (4), thymol (5), menthol (6), vanillin (7), and guaiacol (8) was synthesized. Prominently, all the chemically conjugated prodrugs (4 - 8) revealed an obvious increase in the hypouricemic and antioxidant potentials when compared with their corresponding promoieties and physical mixtures. Moreover, they showed a potential protective effect against CCl4-induced hepatotoxicity and oxidative stress, together with no cytotoxicity on normal breast cells (MCF10A). Furthermore, the in vitro chemical and enzymatic stability studies of the prodrugs (4 - 8) using a developed HPLC method, verified their stability in different pHs, and rapid hydrolysis in rabbit plasma and liver homogenate to their parent metabolites. Moreover, the prodrugs (4 - 8) showed higher lipophilicity and lower aqueous solubility when compared to the parent drugs. Finally, the obtained merits from the implementation of the mutual prodrug strategy would encourage further application in the development of promising candidates with high therapeutic efficacy and improved safety profiles.
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Affiliation(s)
- Aya Y Rashad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, El-Buhaira 22516, Egypt
| | - Hoda G Daabees
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, El-Buhaira 22516, Egypt
| | - Mohamed Elagawany
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, El-Buhaira 22516, Egypt
| | - Mohamed Shahin
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, El-Buhaira 22516, Egypt
| | - Ahmed E Abdel Moneim
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
| | - Sherif A F Rostom
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt.
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Matiyani M, Rana A, Pal M, Dokwal S, Sahoo NG. Polyamidoamine dendrimer decorated graphene oxide as a pH-sensitive nanocarrier for the delivery of hydrophobic anticancer drug quercetin: a remedy for breast cancer. J Pharm Pharmacol 2023:7151008. [PMID: 37134308 DOI: 10.1093/jpp/rgad036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/17/2023] [Indexed: 05/05/2023]
Abstract
OBJECTIVES The aim of this study was to investigate the potential of poly(amido amine) (PAMAM) dendrimer decorated graphene oxide (GO) based nanocarrier for targeted delivery of a hydrophobic anticancer drug, quercetin (QSR). METHODS GO-PAMAM was successfully synthesized by covalent bonding between GO and NH2-terminated PAMAM dendrimer (zero generation). To investigate drug loading performance, QSR was loaded on the surface of GO as well as GO-PAMAM. Further, the release behaviour of QSR-loaded GO-PAMAM was studied. Finally, an in-vitro sulforhodamine B assay was performed in HEK 293T epithelial cells and MDA MB 231 breast cancer cells. KEY FINDINGS It was observed that GO-PAMAM shows higher QSR loading capacity compared to GO. Also, synthesized nanocarrier exhibits controlled as well as pH-responsive release of QSR and the amount of QSR released at pH 4 was approximately two times higher than the release at pH 7.4. Furthermore, GO-PAMAM was found to be biocompatible for HEK 293T cells, and a high cytotoxic effect was observed for QSR-loaded GO-PAMAM on MDA MB 231 cells. CONCLUSIONS The present investigation highlights the potential application of synthesized hybrid materials as a nanocarrier with excellent loading and controlled releasing efficiency for the delivery of the hydrophobic anticancer drug.
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Affiliation(s)
- Monika Matiyani
- Prof. Rajendra Singh Nanoscience and Nanotechnology Centre, Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Anita Rana
- Prof. Rajendra Singh Nanoscience and Nanotechnology Centre, Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
| | - Mintu Pal
- Biotechnology Group, Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, India
- Department of Pharmacology, All India Institute of Medical Sciences (AIIMS), Bathinda, India
| | - Sumit Dokwal
- Department of Biochemistry, Pt. B. D. Sharma PGIMS, Rohtak, India
- Department of Biotechnology, Kalpna Chawla Government Medical College Karnal, Karnal, India
| | - Nanda Gopal Sahoo
- Prof. Rajendra Singh Nanoscience and Nanotechnology Centre, Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, India
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A Glimpse into Dendrimers Integration in Cancer Imaging and Theranostics. Int J Mol Sci 2023; 24:ijms24065430. [PMID: 36982503 PMCID: PMC10049703 DOI: 10.3390/ijms24065430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Cancer is a result of abnormal cell proliferation. This pathology is a serious health problem since it is a leading cause of death worldwide. Current anti-cancer therapies rely on surgery, radiation, and chemotherapy. However, these treatments still present major associated problems, namely the absence of specificity. Thus, it is urgent to develop novel therapeutic strategies. Nanoparticles, particularly dendrimers, have been paving their way to the front line of cancer treatment, mostly for drug and gene delivery, diagnosis, and disease monitoring. This is mainly derived from their high versatility, which results from their ability to undergo distinct surface functionalization, leading to improved performance. In recent years, the anticancer and antimetastatic capacities of dendrimers have been discovered, opening new frontiers to dendrimer-based chemotherapeutics. In the present review, we summarize the intrinsic anticancer activity of different dendrimers as well as their use as nanocarriers in cancer diagnostics and treatment.
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Rashad AY, Daabees HG, Elagawany M, Shahin M, Abdel Moneim AE, Rostom SA. Towards the Development of Dual Hypouricemic and Anti-inflammatory Candidates: Design, Synthesis, Stability Studies and Biological Evaluation of Some Mutual Ester Prodrugs of Febuxostat-NSAIDs. Bioorg Chem 2023; 135:106502. [PMID: 37030108 DOI: 10.1016/j.bioorg.2023.106502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/03/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
Treatment of gout involves two basic approaches: reducing the serum uric acid mainly by xanthine oxidase inhibitors (XOIs) and alleviating the intensity of the accompanying acute arthritic inflammation using non-steroidal anti-inflammatory drugs (NSAIDs). Febuxostat (FEB) is the first non-purine XOI approved for the treatment of hyperuricemia and gout. The present study aims at combining the hypouricemic effect of FEB and the anti-inflammatory (AI) properties of NSAIDs in a single entity by adopting the "mutual prodrug" approach. Accordingly, a series of seven ester prodrugs comprising basically FEB together with different NSAIDs namely, diclofenac (4), ibuprofen (5), ketoprofen (6), indomethacin (7), naproxen (8), ketorolac (9) and etodolac (10) was synthesized. All the investigated seven prodrugs (4-10) were equipotent or even superior to their corresponding parent drugs in the hypouricemic and AI activities, together with a gastrointestinal (GI) safety profile. Among this series, the prodrug FEB-DIC (4) showed excellent dual in vivo hypouricemic and anti-inflammatory activity (43.60 % and 15.96 %, respectively) when compared to the parent drugs FEB and diclofenac (36.82 % and 12.10 %, respectively) and its physical mixture (37.28 % and 12.41 %, respectively). Investigation of the in vitro chemical stability and hydrolysis of the prodrug (4) in aqueous and biological samples using a developed HPLC method confirmed its stability in various pHs, whereas rapid hydrolysis to the parent drugs in liver homogenate and human plasma was proven. Finally, it is concluded that the mutual prodrug approach could be successfully used in drug design and development for overcoming undesirable difficulties without losing the desired activities of the parent drugs.
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Kharwade R, Mahajan N, More S, Warokar A, Mendhi S, Dhobley A, Palve D. Effect of PEGylation on drug uptake, biodistribution, and tissue toxicity of efavirenz-ritonavir loaded PAMAM G4 dendrimers. Pharm Dev Technol 2023; 28:200-218. [PMID: 36695103 DOI: 10.1080/10837450.2023.2173230] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present investigations aimed to compare the efficiency of PAMAM G4 (PG4) and PEGylated PAMAM G4 (PPG4) dendrimers as novel nanocarriers for the treatment of HIV-1. Synthesized PG4 and PPG4 dendrimers were confirmed by electrospray ionization and particle size with its morphology. The anti-human immunodeficiency virus (HIV) drug efavirenz (EFV) with a booster dose of ritonavir (RTV) was encapsulated into PG4 and PPG4 formerly noted as PG4ER and PPG4ER, respectively. Further, evaluated for dendrimers mediated solubilization, drug release, cytotoxicity, drug uptake, plasma, and tissue pharmacokinetics, and histopathology. PG4ER and PPG4ER both promoted a prolonged release of EFV in weakly acidic pH 4 up to 84 h and 132 h, respectively. The results of the cytotoxicity assay and drug uptake study showed that PPG4ER was safe and biocompatible up to 12.5 µg/ml. The plasma pharmacokinetic profile of EFV and RTV was significantly increased by PPG4ER with prolonged t1/2 up to three times as compared to free EFV-RTV and PG4ER. Histopathological analysis showed remarkably lower tissue toxicity in PPG4ER as compared to free EFV-RTV. Therefore, overall data suggested that PPG4 has a great potential for prolonged release of EFV and RTV with enhanced bioavailability and lower toxicity.
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Affiliation(s)
- Rohini Kharwade
- Dadasaheb Balpande College of Pharmacy, Nagpur, India.,Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Nilesh Mahajan
- Dadasaheb Balpande College of Pharmacy, Nagpur, India.,Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Sachin More
- Dadasaheb Balpande College of Pharmacy, Nagpur, India.,Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Amol Warokar
- Dadasaheb Balpande College of Pharmacy, Nagpur, India.,Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Sachin Mendhi
- Dadasaheb Balpande College of Pharmacy, Nagpur, India.,Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur, India
| | - Akshay Dhobley
- Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Nagpur, India
| | - Devendra Palve
- Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Nagpur, India
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Rastogi V, Yadav P, Porwal M, Sur S, Verma A. Dendrimer as nanocarrier for drug delivery and drug targeting therapeutics: a fundamental to advanced systematic review. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2158334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Vaibhav Rastogi
- Teerthanker Mahaveer College of Pharmacy, Teerthanker Mahaveer University, Moradabad, India
| | - Pragya Yadav
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, India
| | - Mayur Porwal
- Teerthanker Mahaveer College of Pharmacy, Teerthanker Mahaveer University, Moradabad, India
| | - Souvik Sur
- Research and Development Center, Teerthanker Mahaveer University, Moradabad, India
| | - Anurag Verma
- Teerthanker Mahaveer College of Pharmacy, Teerthanker Mahaveer University, Moradabad, India
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Jaquilin P J R, Oluwafemi OS, Thomas S, Oyedeji AO. Recent advances in drug delivery nanocarriers incorporated in temperature-sensitive Pluronic F-127–A critical review. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103390] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Drug-dendrimer complexes and conjugates: Detailed furtherance through theory and experiments. Adv Colloid Interface Sci 2022; 303:102639. [PMID: 35339862 DOI: 10.1016/j.cis.2022.102639] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 03/05/2022] [Indexed: 11/23/2022]
Abstract
Dendritic nanovectors-based drug delivery has gained significant attention in the past couple of decades. Dendrimers play a crucial role in deciding the solubility of sparingly soluble drug molecules and help in improving pharmacokinetics. A few important steps in drug delivery through dendrimers, such as drug encapsulation, formulation, and target-specific delivery, play an important role in deciding the fate of a drug molecule. It is also of prime importance to understand the interactions between a drug molecule and dendrimers at atomistic levels to decode the mechanism of action of drug-dendrimer complexes and their reliability in terms of drug delivery. Colossal progress in current experimental and computational approaches in the field has resulted in a vast amount of data that needs to be curated to be further implemented efficiently. Improved computational power has led to greater accuracy and prompt predictions of properties of drug-dendrimer complexes and their mechanism of action. The current review encapsulates the pioneering work in the field, experimental achievements in terms of drug delivery, and newer computational techniques employed in the advancement of the field.
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Patel V, Patel P, Patel JV, Patel PM. Dendrimer as a versatile platform for biomedical application: A review. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100516] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Jiang H, Li L, Zhu D, Zhou X, Yu Y, Zhou Q, Sun L. A Review of Nanotechnology for Treating Dysfunctional Placenta. Front Bioeng Biotechnol 2022; 10:845779. [PMID: 35402416 PMCID: PMC8987505 DOI: 10.3389/fbioe.2022.845779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/01/2022] [Indexed: 11/13/2022] Open
Abstract
The placenta plays a significant role during pregnancy. Placental dysfunction contributes to major obstetric complications, such as fetal growth restriction and preeclampsia. Currently, there is no effective treatment for placental dysfunction in the perinatal period, and prophylaxis is often delivered too late, at which point the disease manifestation cannot be prevented. However, with recent integration of nanoscience and medicine to perform elaborate experiments on the human placenta, it is expected that novel and efficient nanotherapies will be developed to resolve the challenge of managing placental dysfunction. The advent of nanomedicine has enabled the safe and targeted delivery of drugs using nanoparticles. These smart nanoparticles can load the necessary therapeutic substances that specifically target the placenta, such as drugs, targeting molecules, and ligands. Packaging multifunctional molecules into specific delivery systems with high targeting ability, diagnosis, and treatment has emerged as a novel theragnostic (both therapeutic and diagnostic) approach. In this review, the authors discuss recent advances in nanotechnology for placental dysfunction treatment. In particular, the authors highlight potential candidate nanoparticle-loaded molecules that target the placenta to improve utero-placental blood flow, and reduce reactive oxygen species and oxidative stress. The authors intend to provide basic insight and understanding of placental dysfunction, potential delivery targets, and recent research on placenta-targeted nanoparticle delivery systems for the potential treatment of placental dysfunction. The authors hope that this review will sensitize the reader for continued exploration of novel nanomedicines.
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Affiliation(s)
- Huabo Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Li Li
- Reproductive Medicine Center, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dan Zhu
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xinyao Zhou
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yongsheng Yu
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
| | - Qian Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
| | - Luming Sun
- Shanghai Key Laboratory of Maternal Fetal Medicine, Department of Fetal Medicine and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Yongsheng Yu, ; Qian Zhou, ; Luming Sun,
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12
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Sim S, Wong NK. Nanotechnology and its use in imaging and drug delivery (Review). Biomed Rep 2021; 14:42. [PMID: 33728048 DOI: 10.3892/br.2021.1418] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 02/09/2021] [Indexed: 01/07/2023] Open
Abstract
Nanotechnology is the exploitation of the unique properties of materials at the nanoscale. Nanotechnology has gained popularity in several industries, as it offers better built and smarter products. The application of nanotechnology in medicine and healthcare is referred to as nanomedicine, and it has been used to combat some of the most common diseases, including cardiovascular diseases and cancer. The present review provides an overview of the recent advances of nanotechnology in the aspects of imaging and drug delivery.
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Affiliation(s)
- Serjay Sim
- School of Health Sciences, Division of Applied Biomedical Sciences and Biotechnology, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Nyet Kui Wong
- School of Health Sciences, Division of Applied Biomedical Sciences and Biotechnology, International Medical University, Kuala Lumpur 57000, Malaysia
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Oral Drug Delivery: Conventional to Long Acting New-Age Designs. Eur J Pharm Biopharm 2021; 162:23-42. [PMID: 33631319 DOI: 10.1016/j.ejpb.2021.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/16/2021] [Accepted: 02/14/2021] [Indexed: 12/13/2022]
Abstract
The Oral route of administration forms the heartwood of the ever-growing tree of drug delivery technology. It is one of the most preferred dosage forms among patients and controlled release community. Despite the high patient compliance, the deliveries of anti-cancerous drugs, vaccines, proteins, etc. via the oral route are limited and have recorded a very low bioavailability. The oral administration must overcome the physiological barriers (low solubility, permeation and early degradation) to achieve efficient and sustained delivery. This review aims at highlighting the conventional and modern-age strategies that address some of these physiological barriers. The modern age designs include the 3D printed devices and formulations. The superiority of 3D dosage forms over conventional cargos is summarized with a focus on long-acting designs. The innovations in Pharmaceutical organizations (Lyndra, Assertio and Intec) that have taken giant steps towards commercialization of long-acting vehicles are discussed. The recent advancements made in the arena of oral peptide delivery are also highlighted. The review represents a comprehensive journey from Nano-formulations to micro-fabricated oral implants aiming at specific patient-centric designs.
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Pritchard N, Kaitu'u-Lino T, Harris L, Tong S, Hannan N. Nanoparticles in pregnancy: the next frontier in reproductive therapeutics. Hum Reprod Update 2020; 27:280-304. [PMID: 33279994 DOI: 10.1093/humupd/dmaa049] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/26/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Nanotechnology involves the engineering of structures on a molecular level. Nanomedicine and nano-delivery systems have been designed to deliver therapeutic agents to a target site or organ in a controlled manner, maximizing efficacy while minimizing off-target effects of the therapeutic agent administered. In both reproductive medicine and obstetrics, developing innovative therapeutics is often tempered by fears of damage to the gamete, embryo or developing foetus or of negatively impacting a woman's reproductive potential. Thus, nanomedicine delivery systems may provide alternative targeted intervention strategies, treating the source of the disease and minimizing long-term consequences for the mother and/or her foetus. OBJECTIVE AND RATIONALE This review summarizes the current state of nanomedicine technology in reproductive medicine and obstetrics, including safety, potential applications, future directions and the hurdles for translation. SEARCH METHODS A comprehensive electronic literature search of PubMed and Web of Science databases was performed to identify studies published in English up until February 2020. Relevant keywords were used to obtain information regarding use of nanoparticle technology in fertility and gene therapy, early pregnancy complications (ectopic pregnancy and gestational trophoblastic disease) and obstetric complications (preeclampsia, foetal growth restriction, preterm birth and gestational diabetes) and for selective treatment of the mother or foetus. Safety of specific nanoparticles to the gamete, embryo and foetus was also investigated. OUTCOMES Pre-clinical research in the development of nanoparticle therapeutic delivery is being undertaken in many fields of reproductive medicine. Non-hormonal-targeted nanoparticle therapy for fibroids and endometriosis may provide fertility-sparing medical management. Delivery of interventions via nanotechnology provides opportunities for gene manipulation and delivery in mammalian gametes. Targeting cytotoxic treatments to early pregnancy tissue provides an alternative approach to manage ectopic pregnancies and gestational trophoblastic disease. In pregnancy, nanotherapeutic delivery offers options to stably deliver silencing RNA and microRNA inhibitors to the placenta to regulate gene expression, opening doors to novel genetic treatments for preeclampsia and foetal growth restriction. Restricting delivery of teratogenic drugs to the maternal compartment (such as warfarin) may reduce risks to the foetus. Alternatively, targeted delivery of drugs to the foetus (such as those to treat foetal arrythmias) may minimize side effects for the mother. WIDER IMPLICATIONS We expect that further development of targeted therapies using nanoparticles in a reproductive setting has promise to eventually allow safe and directed treatments for conditions impacting the health and reproductive capacity of women and for the management of pregnancy and serious pregnancy complications.
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Affiliation(s)
- Natasha Pritchard
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, University of Melbourne, Heidelberg, Victoria, Australia
- Mercy Perinatal, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Tu'uhevaha Kaitu'u-Lino
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, University of Melbourne, Heidelberg, Victoria, Australia
- Mercy Perinatal, Mercy Hospital for Women, Heidelberg, Victoria, Australia
- Department of Obstetrics and Gynaecology, Diagnostics Discovery and Reverse Translation, University of Melbourne, Heidelberg, Victoria, Australia
| | - Lynda Harris
- Division of Pharmacy and Optometry, University of Manchester, Manchester, UK
- Maternal and Fetal Health Research Centre, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
- Maternal and Fetal Health Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Sciences Centre, St Mary's Hospital, Manchester, UK
| | - Stephen Tong
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, University of Melbourne, Heidelberg, Victoria, Australia
- Mercy Perinatal, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - Natalie Hannan
- Translational Obstetrics Group, Department of Obstetrics and Gynaecology, Mercy Hospital for Women, University of Melbourne, Heidelberg, Victoria, Australia
- Mercy Perinatal, Mercy Hospital for Women, Heidelberg, Victoria, Australia
- Therapeutics Discovery and Vascular Function Group, Department of Obstetrics and Gynaecology, University of Melbourne, Heidelberg, Victoria, Australia
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Jangam S, Deodhar M, Wankhede S. Synthesis and Biological Evaluation of Amino Acid Based Mutual Amide Prodrugs of Phenytoin as Anticonvulsant Agents. Cent Nerv Syst Agents Med Chem 2020; 21:53-72. [PMID: 33167845 DOI: 10.2174/1871524920666201109152344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/10/2020] [Accepted: 10/16/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Phenytoin (5,5-diphenyl hydantoin) has poor water solubility, which results in incomplete oral availability. Other problems associated with the oral and intramuscular administration of phenytoin are gastric irritation and inflammation at the site of injection. OBJECTIVE The purpose of this study was to synthesize mutual amide prodrugs of phenytoin by using amino acids like glycine, L-tryptophan, L-lysine and taurine. METHODS These prodrugs were synthesized and characterized by Fourier Transform Infrared (FTIR), Proton nuclear magnetic resonance (1H NMR) and Mass Spectra. Physical and spectral characterization was performed by determination of solubility, maximum wavelength, partition coefficient (log P), ionization constant (pKa), specific (α) and molar rotation (μ), refractive index (n), specific refraction (RS) and molar refraction (RM). RESULTS The results obtained from solubility and log P values determination indicated that phenytoin prodrugs can be administered by oral as well as a parenteral route by minimizing the limitations associated with phenytoin. Anticonvulsant activity of prodrugs (4a-4d) was evaluated by using maximal electroshock (MES) and strychnine induced seizure test on albino mice of either sex weighing 25-30 g in which 4b and 4d were found to have significant anticonvulsant activity for MES and strychnine induced seizure test. In vitro enzymatic hydrolysis study of 4b and 4d was performed on liver, intestinal mucosa and plasma sample of male Sprague Dawley rats weighing 280-300 g in which phenytoin was eluted at 10.13 to 10.68 minutes at 220 nm. CONCLUSION The results obtained from the present work showed that amino acid-based mutual prodrug strategy can be a promising method to increase the solubility and anticonvulsant activity of phenytoin for the development of anticonvulsant agents.
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Affiliation(s)
- Sampada Jangam
- Department of Pharmaceutical Chemistry, JSPM's Charak College of Pharmacy and Research, Pune-Nagar Road, Wagholi, Pune, Maharashtra, India
| | - Meenakshi Deodhar
- Department of Pharmaceutical Chemistry, PDEA's Seth Govind Raghunath Sable College of Pharmacy, Saswad, Pune, Maharashtra, India
| | - Sagar Wankhede
- Department of Pharmaceutical Chemistry, Datta Meghe College of Pharmacy, Salod, Wardha, Maharashtra, India
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Bazyari-Delavar S, Badalkhani-Khamseh F, Ebrahim-Habibi A, Hadipour NL. Investigation of host-guest interactions between polyester dendrimers and ibuprofen using density functional theory (DFT). COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2020.112983] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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Al-azzawi S, Masheta D, Guildford A, Phillips G, Santin M. A Peptide-Based Nanocarrier for an Enhanced Delivery and Targeting of Flurbiprofen into the Brain for the Treatment of Alzheimer's Disease: An In Vitro Study. NANOMATERIALS 2020; 10:nano10081590. [PMID: 32823499 PMCID: PMC7466704 DOI: 10.3390/nano10081590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/31/2020] [Accepted: 08/05/2020] [Indexed: 12/22/2022]
Abstract
Alzheimer's disease (AD) is an age-related disease caused by abnormal accumulation of amyloid-β in the brain leading to progressive tissue degeneration. Flurbiprofen (FP), a drug used to mitigate the disease progression, has low efficacy due to its limited permeability across the blood-brain barrier (BBB). In a previous work, FP was coupled at the uppermost branching of an ε-lysine-based branched carrier, its root presenting a phenylalanine moiety able to increase the hydrophobicity of the complex and enhance the transport across the BBB by adsorptive-mediated transcytosis (AMT). The present study explores a different molecular design of the FP-peptide delivery system, whereby its root presents an ApoE-mimicking peptide, a targeting ligand that could enhance transport across the BBB by receptor-mediated transcytosis (RMT). The functionalised complex was synthesised using a solid-phase peptide synthesis and characterised by mass spectrometry and FTIR. Cytotoxicity and permeability of this complex across an in vitro BBB model were analysed. Moreover, its activity and degradation to release the drug were investigated. The results revealed successful synthesis and grafting of FP molecules at the uppermost molecular branches of the lysine terminal without observed cytotoxicity. When covalently linked to the nanocarrier, FP was still active on target cells, albeit with a reduced activity, and was released as a free drug upon hydrolysis in a lysosome-mimicking medium. Noticeably, this work shows the high efficiency of RMT-driven FP delivery over delivery systems relying on AMT.
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Affiliation(s)
- Shafq Al-azzawi
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK; (S.A.-a.); (D.M.); (A.G.); (G.P.)
- College of Pharmacy, University of Babylon, Ministry of Higher Education and Scientific Research, Hilla 51002, Iraq
| | - Dhafir Masheta
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK; (S.A.-a.); (D.M.); (A.G.); (G.P.)
- College of Pharmacy, University of Babylon, Ministry of Higher Education and Scientific Research, Hilla 51002, Iraq
| | - Anna Guildford
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK; (S.A.-a.); (D.M.); (A.G.); (G.P.)
- Tissue Click Ltd., Brighton BN2 6SJ, UK
| | - Gary Phillips
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK; (S.A.-a.); (D.M.); (A.G.); (G.P.)
- Tissue Click Ltd., Brighton BN2 6SJ, UK
| | - Matteo Santin
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK; (S.A.-a.); (D.M.); (A.G.); (G.P.)
- Correspondence:
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18
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Gillani SS, Munawar MA, Khan KM, Chaudhary JA. Synthesis, characterization and applications of poly-aliphatic amine dendrimers and dendrons. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [PMCID: PMC7298932 DOI: 10.1007/s13738-020-01973-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the current era, the dendrimers have vast potential applications in the area of electronics, healthcare, pharmaceuticals, biotechnology, engineering products, photonics, drug delivery, catalysis, electronic devices, nanotechnologies and environmental issues. This review recaps the synthesis, characterization and applications of poly-aliphatic amine dendrimers.
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Mandal AK. Dendrimers in targeted drug delivery applications: a review of diseases and cancer. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1713780] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ardhendu Kumar Mandal
- Central Instrumentation Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, India
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20
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Rezaei SJT, Malekzadeh AM, Ramazani A, Niknejad H. pH-Sensitive Magnetite Nanoparticles Modified with Hyperbranched Polymers and Folic Acid for Targeted Imaging and Therapy. Curr Drug Deliv 2019; 16:839-848. [DOI: 10.2174/1567201816666191002102353] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/27/2019] [Accepted: 08/06/2019] [Indexed: 11/22/2022]
Abstract
Objective:
A novel pH-sensitive superparamagnetic drug delivery system was developed
based on quercetin loaded hyperbranched polyamidoamine-b-polyethylene glycol-folic acid-modified
Fe3O4 nanoparticles (Fe3O4@PAMAM-b-PEG-FA).
Methods:
The nanoparticles exhibit excellent water dispersity with well-defined size distribution
(around 51.8 nm) and strong magnetisability. In vitro release studies demonstrated that the quercetinloaded
Fe3O4@PAMAM-b-PEG-FA nanoparticles are stable at normal physiologic conditions (pH 7.4
and 37°C) but sensitive to acidic conditions (pH 5.6 and 37°C), which led to the rapid release of the
loaded drug.
Results:
Fluorescent microscopy results indicated that the Fe3O4@PAMAM-b-PEG-FA nanoparticles
could be efficiently accumulated in tumor tissue compared with non-folate conjugated nanoparticles.
Also, in comparison with free quercetin, the quercetin loaded Fe3O4@PAMAM-b-PEG-FA exerts
higher cytotoxicity. Furthermore, this magnetic nanocarrier showed high MRI sensitivity, even in its
lower iron content.
Conclusion:
The results indicated that the prepared nanoparticles are an effective chemotherapy and
diagnosis system to inhibit proliferation and monitor the progression of tumor cells, respectively.
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Affiliation(s)
- Seyed Jamal Tabatabaei Rezaei
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Asemeh Mashhadi Malekzadeh
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Ali Ramazani
- Laboratory of novel drug delivery systems, Department of Chemistry, Faculty of Science, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Dias AP, da Silva Santos S, da Silva JV, Parise-Filho R, Igne Ferreira E, Seoud OE, Giarolla J. Dendrimers in the context of nanomedicine. Int J Pharm 2019; 573:118814. [PMID: 31759101 DOI: 10.1016/j.ijpharm.2019.118814] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 01/23/2023]
Abstract
Dendrimers are globular structures, presenting an initiator core, repetitive layers starting radially from the core and terminal groups on the surface, resembling tree architecture. These structures have been studied in many biological applications, as drug, DNA, RNA and proteins delivery, as well as imaging and radiocontrast agents. With reference to that, this review focused in providing examples of dendrimers used in nanomedicine. Although most studies emphasize cancer, there are others which reveal action in the neurosystem, reducing either neuroinflammation or protein aggregation. Dendrimers can carry bioactive compounds by covalent bond (dendrimer prodrug), or by ionic interaction or adsortion in the internal space of the nanostructure. Additionally, dendrimers can be associated with other polymers, as PEG (polyethylene glycol), and with targeting structures as aptamers, antibodies, folic acid and carbohydrates. Their products in preclinical/clinical trial and those in the market are also discussed, with a total of six derivatives in clinical trials and seven products available in the market.
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Affiliation(s)
- Ana Paula Dias
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Soraya da Silva Santos
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - João Vitor da Silva
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Roberto Parise-Filho
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Elizabeth Igne Ferreira
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil
| | - Omar El Seoud
- Department of Organic Chemistry, Institute of Chemistry, University of São Paulo - USP, São Paulo, SP, Brazil
| | - Jeanine Giarolla
- Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo - USP, São Paulo, SP 05508-900, Brazil.
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22
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Zaręba M, Sareło P, Kopaczyńska M, Białońska A, Uram Ł, Walczak M, Aebisher D, Wołowiec S. Mixed-Generation PAMAM G3-G0 Megamer as a Drug Delivery System for Nimesulide: Antitumor Activity of the Conjugate Against Human Squamous Carcinoma and Glioblastoma Cells. Int J Mol Sci 2019; 20:ijms20204998. [PMID: 31601050 PMCID: PMC6834146 DOI: 10.3390/ijms20204998] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 09/30/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022] Open
Abstract
Polyhydroxylated dendrimer was synthesized from poly(amidoamine) (PAMAM) dendrimer generation 3 by addition of glycidol (G3gl). G3gl megamer was further modified by binding PAMAM G0 dendrimers by activation of G3gl with p-nitrophenylchloroformate, followed by the addition of excess PAMAM G0 and purification using dialysis. The maximum G0 binding capacity of G3gl was 12 in the case when G0 was equipped with two covalently attached nimesulide equivalents. Nimesulide (N) was converted into N-(p-nitrophenyl) carbonate derivative and fully characterized using X-ray crystallography and spectral methods. Nimesulide was then attached to G0 via a urea bond to yield G02N. The mixed generation G3gl–G02N megamer was characterized using 1H NMR spectroscopy, and its molecular weight was estimated to be 22.4 kDa. The AFM image of G3gl–G02N deposited on mica demonstrated aggregation of nimesulide-covered megamer. The height of the deposited megamer was 8.5 nm. The megameric conjugate with nimesulide was tested in vitro on three human cell lines: squamous cell carcinoma (SCC-15) and glioblastoma (U-118 MG) overexpressing cyclooxygenase-2 (COX-2), and normal skin fibroblasts (BJ). The conjugate efficiently penetrated into all cells and was more cytotoxic against SCC-15 than against BJ. Moreover, the conjugate produced a strong and selective antiproliferative effect on both cancer cell lines (IC50 < 7.5 µM).
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Affiliation(s)
- Magdalena Zaręba
- Faculty of Chemistry, Rzeszów University of Technology, 35-939 Rzeszów, Poland.
| | - Przemysław Sareło
- Department of Biomedical Engineering, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
| | - Marta Kopaczyńska
- Department of Biomedical Engineering, Wrocław University of Science and Technology, 50-370 Wrocław, Poland.
| | - Agata Białońska
- Faculty of Chemistry, University of Wrocław, 50-383 Wrocław, Poland.
| | - Łukasz Uram
- Faculty of Chemistry, Rzeszów University of Technology, 35-939 Rzeszów, Poland.
| | - Małgorzata Walczak
- Faculty of Chemistry, Rzeszów University of Technology, 35-939 Rzeszów, Poland.
| | - David Aebisher
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, 35-310 Rzeszów, Poland.
| | - Stanisław Wołowiec
- Centre for Innovative Research in Medical and Natural Sciences, Faculty of Medicine, University of Rzeszów, 35-310 Rzeszów, Poland.
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23
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Koziolová E, Venclíková K, Etrych T. Polymer-drug conjugates in inflammation treatment. Physiol Res 2019; 67:S281-S292. [PMID: 30379550 DOI: 10.33549/physiolres.933977] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Inflammation is a vital defense mechanism of living organisms. However, persistent and chronic inflammation may lead to severe pathological processes and evolve into various chronic inflammatory diseases (CID), e.g. rheumatoid arthritis, multiple sclerosis, multiple sclerosis, systemic lupus erythematosus or inflammatory bowel diseases, or certain types of cancer. Their current treatment usually does not lead to complete remission. The application of nanotherapeutics may significantly improve CID treatment, since their accumulation in inflamed tissues has been described and is referred to as extravasation through leaky vasculature and subsequent inflammatory cell-mediated sequestration (ELVIS). Among nanotherapeutics, water-soluble polymer-drug conjugates may be highly advantageous in CID treatment due to the possibility of their passive and active targeting to the inflammation site and controlled release of active agents once there. The polymer-drug conjugate consists of a hydrophilic biocompatible polymer backbone along which the drug molecules are covalently attached via a biodegradable linker that enables controlled drug release. Their active targeting or bio-imaging can be achieved by introducing the cell-specific targeting moiety or imaging agents into the polymer conjugate. Here, we review the relationship between polymer conjugates and inflammation, including the benefits of the application of polymer conjugates in inflammation treatment, the anti-inflammatory activity of polymer drug conjugates and potential polymer-promoted inflammation and immunogenicity.
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Affiliation(s)
- E Koziolová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague 6, Czech Republic.
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24
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Rompicharla SVK, Kumari P, Bhatt H, Ghosh B, Biswas S. Biotin functionalized PEGylated poly(amidoamine) dendrimer conjugate for active targeting of paclitaxel in cancer. Int J Pharm 2018; 557:329-341. [PMID: 30599231 DOI: 10.1016/j.ijpharm.2018.12.069] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/05/2018] [Accepted: 12/17/2018] [Indexed: 11/20/2022]
Abstract
In the current study, we employed poly(amidoamine) (PAMAM) dendrimers of generation 4 (G4) to deliver paclitaxel (PTX), a poorly soluble anti-cancer agent precisely to cancer cells via its conjugation on dendrimer surface. Further, G4 PAMAM has been PEGylated (PEG) and tagged with Biotin, an essential micronutrient for cellular functions, receptors of which are overexpressed in certain cancers. The synthesized multifunctional conjugates were characterized by 1H NMR and zeta potential analysis techniques. In addition, the conjugates were evaluated in vitro in cell monolayers and 3D spheroids of biotin receptor over-expressed A549 cell line (human non-small cell lung cancer). G4 PTX PEG-Biotin conjugate penetrated at significantly higher extent in monolayers as well as spheroids as studied by flow cytometry and confocal microscopy by visualizing the cells at varied depth. The G4 PTX PEG-Biotin conjugate demonstrated higher cytotoxicity compared to free PTX and G4 PTX PEG conjugate as assessed by MTT assay in monolayers and Presto Blue assay in detached spheroidal cells. G4 PTX PEG-Biotin demonstrated significant inhibition of growth of tumor spheroids. Therefore, the newly synthesized biotin anchored PTX-conjugated dendrimer system is promising and could be further explored for efficiently delivering PTX to biotin receptor overexpressed cancers.
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Affiliation(s)
- Sri Vishnu Kiran Rompicharla
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Preeti Kumari
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Himanshu Bhatt
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Balaram Ghosh
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India
| | - Swati Biswas
- Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Medchal, Hyderabad, Telangana 500078, India.
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25
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Vieira Gonzaga R, da Silva Santos S, da Silva JV, Campos Prieto D, Feliciano Savino D, Giarolla J, Igne Ferreira E. Targeting Groups Employed in Selective Dendrons and Dendrimers. Pharmaceutics 2018; 10:E219. [PMID: 30413047 PMCID: PMC6320891 DOI: 10.3390/pharmaceutics10040219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/19/2018] [Accepted: 10/24/2018] [Indexed: 12/16/2022] Open
Abstract
The design of compounds with directed action to a defined organ or tissue is a very promising approach, since it can decrease considerably the toxicity of the drug/bioactive compound. For this reason, this kind of strategy has been greatly important in the scientific community. Dendrimers, on the other hand, comprise extremely organized macromolecules with many peripheral functionalities, stepwise controlled synthesis, and defined size. These nanocomposites present several biological applications, demonstrating their efficiency to act in the pharmaceutical field. Considering that, the main purpose of this review was describing the potential of dendrons and dendrimers as drug targeting, applying different targeting groups. This application has been demonstrated through interesting examples from the literature considering the last ten years of publications.
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Affiliation(s)
- Rodrigo Vieira Gonzaga
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
| | - Soraya da Silva Santos
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
| | - Joao Vitor da Silva
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
| | - Diego Campos Prieto
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
| | | | - Jeanine Giarolla
- Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo 05508-000, Brazil.
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26
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Al-Azzawi S, Masheta D, Guildford AL, Phillips G, Santin M. Dendrimeric Poly(Epsilon-Lysine) Delivery Systems for the Enhanced Permeability of Flurbiprofen across the Blood-Brain Barrier in Alzheimer's Disease. Int J Mol Sci 2018; 19:E3224. [PMID: 30340406 PMCID: PMC6214014 DOI: 10.3390/ijms19103224] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/04/2018] [Accepted: 10/11/2018] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive brain disorder and age-related disease characterised by abnormal accumulation of β-amyloid (Aβ). The development of drugs to combat AD is hampered by the lack of therapeutically-active molecules able to cross the blood-brain barrier (BBB). It is agreed that specifically-designed carriers, such as dendrimers, could support the drug penetration across the BBB. The aim of this study was to design biocompatible and biodegradable dendrimeric delivery systems able to carry Flurbiprofen (FP), as drug for AD treatment, across the BBB and liberate it at the target tissue. These dendrons were synthesised using solid-phase peptide synthesis method and characterised by mass spectrometry and fourier-transform infrared spectroscopy (FTIR). The results revealed successful synthesis of dendrons having FP been integrated during the synthesis at their branching ends. Cytotoxicity assays demonstrated the biocompatibility of the delivery systems, whereas HPLC analysis showed high percentages of permeability across an in vitro BBB model for FP-integrated dendrons. Results also revealed the efficiency of drug conjugates on the γ-secretase enzyme in target cells with evidence of eventual drug release by hydrolysis of the carrier. This study demonstrates that the coupling of FP to dendrimeric delivery systems can successfully be achieved during the synthesis of the poly(epsilon-lysine) macromolecules to improve the transport of the active drug across the BBB.
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Affiliation(s)
- Shafq Al-Azzawi
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
- College of Pharmacy, University of Babylon, Ministry of Higher Education and Scientific Research, Hilla 51002, Iraq.
| | - Dhafir Masheta
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
- College of Pharmacy, University of Babylon, Ministry of Higher Education and Scientific Research, Hilla 51002, Iraq.
| | - Anna L Guildford
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
- Tissue Click Ltd., BN2 6SJ Brighton, UK.
| | - Gary Phillips
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
- Tissue Click Ltd., BN2 6SJ Brighton, UK.
| | - Matteo Santin
- Centre for Regenerative Medicine and Devices, School of Pharmacy and Bimolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
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27
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Sherje AP, Jadhav M, Dravyakar BR, Kadam D. Dendrimers: A versatile nanocarrier for drug delivery and targeting. Int J Pharm 2018; 548:707-720. [PMID: 30012508 DOI: 10.1016/j.ijpharm.2018.07.030] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 01/04/2023]
Abstract
Dendrimers are novel polymeric nanoarchitectures characterized by hyper-branched 3D-structure having multiple functional groups on the surface that increases their functionality and make them versatile and biocompatible. Their unique properties like nanoscale uniform size, high degree of branching, polyvalency, water solubility, available internal cavities and convenient synthesis approaches make them promising agent for biological and drug delivery applications. Dendrimers have received an enormous attention from researchers among various nanomaterials. Dendrimers can be used as a carrier for diverse therapeutic agents. They can be used for reducing drug toxicities and enhancement of their efficacies. The present review provide a comprehensive outline of synthesis of dendrimers, interaction of dendrimer with guest molecules, properties, characterization and their potential applications in pharmaceutical and biomedical field.
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Affiliation(s)
- Atul P Sherje
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai 400 056, India.
| | - Mrunal Jadhav
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai 400 056, India
| | - Bhushan R Dravyakar
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai 400 056, India
| | - Darshana Kadam
- Department of Pharmaceutical Chemistry & Quality Assurance, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle (W), Mumbai 400 056, India
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28
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Yellepeddi VK, Mohammadpour R, Kambhampati SP, Sayre C, Mishra MK, Kannan RM, Ghandehari H. Pediatric oral formulation of dendrimer-N-acetyl-l-cysteine conjugates for the treatment of neuroinflammation. Int J Pharm 2018; 545:113-116. [PMID: 29680280 DOI: 10.1016/j.ijpharm.2018.04.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 12/26/2022]
Abstract
N-Acetyl-l-cysteine (NAC) commonly used as an antidote in acetaminophen poisoning has shown promise in the treatment of neurological disorders such as cerebral palsy (CP). However, NAC suffers from drawbacks such as poor oral bioavailability and suboptimal blood-brain-barrier (BBB) permeability limiting its clinical success. It was previously demonstrated that intravenous administration of dendrimer-NAC (D-NAC) conjugates have shown significant promise in the targeted treatment of neuroinflammation, in multiple preclinical models. Development of an oral formulation of D-NAC may open new administrative routes for this compound. Here, we report the gastrointestinal stability, in vitro transepithelial permeability, and in vivo oral absorption and pharmacokinetics in rats of a pediatric formulation of D-NAC containing Capmul MCM (glycerol monocaprylate) as a penetration enhancer. D-NAC was stable for 6 h in all five simulated gastrointestinal fluids with no signs of chemical degradation. The apparent permeability (Papp) of D-NAC increased 9-fold in the formulation containing Capmul. The area under the curve [AUC]0-∞ of D-NAC with Capmul increased by 47% when compared to D-NAC alone. These results indicate that an oral pediatric formulation containing D-NAC and Capmul can be an effective option for the treatment of neuroinflammation.
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Affiliation(s)
- Venkata K Yellepeddi
- Division of Clinical Pharmacology, Department of Pediatrics, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; College of Pharmacy, Roseman University of Health Sciences, South Jordan, UT, USA.
| | - Raziye Mohammadpour
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA
| | - Siva P Kambhampati
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Casey Sayre
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, UT, USA
| | - Manoj K Mishra
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rangaramanujam M Kannan
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Hugo W. Moser Research Institute at Kennedy Krieger, Inc., Baltimore, MD, USA; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Hamidreza Ghandehari
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA
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Abstract
Skin-mediated therapeutic delivery is a potential alternative to traditional drug delivery approaches. However, dermal drug delivery is limited to the molecules with optimal physico-chemical properties. To overcome this barrier for delivering ‘nonideal’ drug molecules across the skin, different drug carriers and penetration enhancement methods have been investigated. Conventional chemical and physical approaches for dermal drug delivery are limited by their skin irritation potential, complexity of application and poor patient compliance. In recent years, dendritic polymers have shown potential in improving the dermal delivery of various molecules. With minimal skin irritation potential and high drug loading capacity, dendrimers offer multiple advantages for improving delivery of drugs across the skin. The current review aims to provide an overview of dendritic polymers for dermal (topical and transdermal) drug delivery. [Formula: see text]
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Affiliation(s)
- Kıvılcım Öztürk-Atar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Hakan Eroğlu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Sema Çalış
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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In Vitro Evaluation of Third Generation PAMAM Dendrimer Conjugates. Molecules 2017; 22:molecules22101661. [PMID: 28976921 PMCID: PMC6151491 DOI: 10.3390/molecules22101661] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 09/29/2017] [Accepted: 09/30/2017] [Indexed: 12/29/2022] Open
Abstract
The present study compares the use of high generation G3 and low generation G0 Polyamidoamine (PAMAM) dendrimers as drug carriers of naproxen (NAP), a poorly water soluble drug. Naproxen was conjugated to G3 in different ratios and to G0 in a 1:1 ratio via a diethylene glycol linker. A lauroyl chain (L), a lipophilic permeability enhancer, was attached to G3 and G0 prodrugs. The G3 and G0 conjugates were more hydrophilic than naproxen as evaluated by the measurement of partitioning between 1-octanol and a phosphate buffer at pH 7.4 and pH 1.2. The unmodified surface PAMAM-NAP conjugates showed significant solubility enhancements of NAP at pH 1.2; however, with the number of NAP conjugated to G3, this was limited to 10 molecules. The lactate dehydrogenase (LDH) assay indicated that the G3 dendrimer conjugates had a concentration dependent toxicity towards Caco-2 cells. Attaching naproxen to the surface of the dendrimer increased the IC50 of the resulting prodrugs towards Caco-2 cells. The lauroyl G3 conjugates showed the highest toxicity amongst the PAMAM dendrimer conjugates investigated and were significantly more toxic than the lauroyl-G0-naproxen conjugates. The permeability of naproxen across monolayers of Caco-2 cells was significantly increased by its conjugation to either G3 or G0 PAMAM dendrimers. Lauroyl-G0 conjugates displayed considerably lower cytotoxicity than G3 conjugates and may be preferable for use as a drug carrier for low soluble drugs such as naproxen.
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Zaręba M, Uram Ł, Białońska A, Stompor M, Wołowiec S. PAMAM Dendrimers Attached to Collagen via a Malondialdehyde Linker. ChemistrySelect 2017. [DOI: 10.1002/slct.201700719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Magdalena Zaręba
- Rzeszów University of Technology; Faculty of Chemistry; 6 Powstańców Warszawy Ave 35-959 Rzeszów Poland
| | - Łukasz Uram
- Rzeszów University of Technology; Faculty of Chemistry; 6 Powstańców Warszawy Ave 35-959 Rzeszów Poland
| | - Agata Białońska
- Wrocław University; Faculty of Chemistry; 14 Joliot-Curie Str. 50-383 Wrocław Poland
| | - Monika Stompor
- University of Rzeszów; Faculty of Medicine; Centre for Innovative Research in Medical and Natural Sciences; 1a Warzywna Str. 35-310 Rzeszów Poland
| | - Stanisław Wołowiec
- University of Rzeszów; Faculty of Medicine; Centre for Innovative Research in Medical and Natural Sciences; 1a Warzywna Str. 35-310 Rzeszów Poland
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Natfji AA, Osborn HM, Greco F. Feasibility of polymer-drug conjugates for non-cancer applications. Curr Opin Colloid Interface Sci 2017. [DOI: 10.1016/j.cocis.2017.07.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Low systemic toxicity nanocarriers fabricated from heparin-mPEG and PAMAM dendrimers for controlled drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 82:291-298. [PMID: 29025661 DOI: 10.1016/j.msec.2017.07.051] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/28/2017] [Accepted: 07/29/2017] [Indexed: 12/23/2022]
Abstract
In this report, poly(amide amine) (PAMAM) dendrimer and Heparin-grafted-monomethoxy polyethylene glycol (HEP-mPEG) were synthesized and characterized. In aqueous solution, the generation 4 PAMAM dendrimers (G4.0-PAMAM) existed as nanoparticles with particle size of 5.63nm. However, after electrostatic complexation with HEP-mPEG to form a core@shell structure G4.0-PAMAM@HEP-mPEG, the size of nanoparticles was significantly increased (73.82nm). The G4.0-PAMAM@HEP-mPEG nanoparticles showed their ability to effectively encapsulate doxorubicin (DOX) for prolonged and controlled release. The cytocompatibility of G4.0-PAMAM@HEP-mPEG nanocarriers was significantly increased compared with its parentally G4.0-PAMAM dendrimer in both mouse fibroblast NIH3T3 and the human tumor HeLa cell lines. DOX was effectively encapsulated into G4.0-PAMAM@HEP-mPEG nanoparticles to form DOX-loaded nanocarriers (DOX/G4.0-PAMAM@HEP-mPEG) with high loading efficiency (73.2%). The release of DOX from DOX/G4.0-PAMAM@HEP-mPEG nanocarriers was controlled and prolonged up to 96h compared with less than 24h from their parentally G4.0-PAMAM nanocarriers. Importantly, the released DOX retained its bioactivity by inhibiting the proliferation of monolayer-cultured cancer HeLa cells with the same degree of fresh DOX. This prepared G4.0-PAMAM@HEP-mPEG nanocarrier can be a potential candidate for drug delivery systems with high loading capacity and low systemic toxicity in cancer therapy.
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Pedro-Hernández LD, Martínez-Klimova E, Cortez-Maya S, Mendoza-Cardozo S, Ramírez-Ápan T, Martínez-García M. Synthesis, Characterization, and Nanomedical Applications of Conjugates between Resorcinarene-Dendrimers and Ibuprofen. NANOMATERIALS 2017; 7:nano7070163. [PMID: 28665319 PMCID: PMC5535229 DOI: 10.3390/nano7070163] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/16/2017] [Accepted: 06/26/2017] [Indexed: 12/24/2022]
Abstract
Ibuprofen has been reported to possess anticancer activity. In the present work, four ibuprofen conjugates of resorcinarene-Polyamidoamine PAMAM-dendrimers were synthesized with eight or 16 ibuprofen moieties. The ibuprofen was released from the dendrimers in a dependent manner. The drug-conjugated nanoresorcinarene-dendrimers showed higher cellular uptake than free ibuprofen. In vitro cytotoxicity studies were performed with free ibuprofen and with the synthesized conjugates in U251, PC-3, K-562, HCT-15, MCF-7, SKLU-1, and MDA U251 (human glioblastoma), PC-3 (human prostatic adenocarcinoma), K-562 (human chronic myelogenous leukemia cells), HCT-15 (human colorectal adenocarcinoma), MCF-7 (human mammary adenocarcinoma), SKLU-1 (human lung adenocarcinoma), and MDA-MB-231 (human mammary adenocarcinoma) cancer cell lines by different cytotoxicity assays. Ibuprofen conjugates of the first and second generations showed significant cytotoxic effects towards the human glioblastoma (U251) and human mammary adenocarcinoma (MCF-7, MDA) cell lines. Moreover, the ibuprofen conjugates improved cytotoxicity compared to free ibuprofen. Increased therapeutic efficacy was observed with specific ibuprofen conjugates of the second generation using low doses.
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Affiliation(s)
- Luis D Pedro-Hernández
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Elena Martínez-Klimova
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Sandra Cortez-Maya
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Sonia Mendoza-Cardozo
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Teresa Ramírez-Ápan
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
| | - Marcos Martínez-García
- Instituto de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior, Coyoacán C.P. 04510, México D.F., Mexico.
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Perspectives on dendritic architectures and their biological applications: From core to cell. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 173:61-83. [PMID: 28564631 DOI: 10.1016/j.jphotobiol.2017.05.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 12/24/2022]
Abstract
The challenges of medicine today include the increasing stipulation for sensitive and effective systems that can improve the pathological responses with a simultaneous reduction in accumulation and drug side effects. The demand can be fulfilled through the advancements in nanomedicine that includes nanostructures and nanodevices for diagnosing, treating, and prevention of various diseases. In this respect, the nanoscience provides various novel techniques with carriers such as micelles, dendrimers, particles and vesicles for the transportation of active moieties. Further, an efficient way to improve these systems is through stimuli a responsive system that utilizes supramolecular hyperbranched structures to meet the above criteria. The stimuli-responsive dendritic architectures exhibit spatial, temporal, convenient, effective, safety and controlled drug release in response to specific trigger through electrostatic interactions plus π stacking. The stimuli-responsive systems are capable of sequestering the drug molecules underneath a predefined set of conditions and discharge them in a different environment through either exogenous or endogenous stimulus. The incorporation of photoresponsive moieties at various components of dendrimer such as core, branches or at the peripheral end exaggerates its significance in various allied fields of nanotechnology which includes sensors, photoswitch, electronic widgets and in drug delivery systems. This is due to the light instigated geometrical modifications at the core or at the surface molecules which generates huge conformational changes throughout the hyperbranched structure. Further, numerous synthetic methodologies have been investigated for utilization of dendrimers in therapeutic drug delivery and its applicability towards stimuli responsive systems such as photo-instigated, thermal-instigated, and pH-instigated hyperbranched structures and their advancement in the field of nanomedicine. This paper highlights the fascinating theoretical advances and principal mechanisms of dendrimer synthesis and their ability to capture light that strengthens its applicability from radiant energy to medical photonics.
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Choudhary S, Gupta L, Rani S, Dave K, Gupta U. Impact of Dendrimers on Solubility of Hydrophobic Drug Molecules. Front Pharmacol 2017; 8:261. [PMID: 28559844 PMCID: PMC5432624 DOI: 10.3389/fphar.2017.00261] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 04/26/2017] [Indexed: 12/31/2022] Open
Abstract
Adequate aqueous solubility has been one of the desired properties while selecting drug molecules and other bio-actives for product development. Often solubility of a drug determines its pharmaceutical and therapeutic performance. Majority of newly synthesized drug molecules fail or are rejected during the early phases of drug discovery and development due to their limited solubility. Sufficient permeability, aqueous solubility and physicochemical stability of the drug are important for achieving adequate bioavailability and therapeutic outcome. A number of different approaches including co-solvency, micellar solubilization, micronization, pH adjustment, chemical modification, and solid dispersion have been explored toward improving the solubility of various poorly aqueous-soluble drugs. Dendrimers, a new class of polymers, possess great potential for drug solubility improvement, by virtue of their unique properties. These hyper-branched, mono-dispersed molecules have the distinct ability to bind the drug molecules on periphery as well as to encapsulate these molecules within the dendritic structure. There are numerous reported studies which have successfully used dendrimers to enhance the solubilization of poorly soluble drugs. These promising outcomes have encouraged the researchers to design, synthesize, and evaluate various dendritic polymers for their use in drug delivery and product development. This review will discuss the aspects and role of dendrimers in the solubility enhancement of poorly soluble drugs. The review will also highlight the important and relevant properties of dendrimers which contribute toward drug solubilization. Finally, hydrophobic drugs which have been explored for dendrimer assisted solubilization, and the current marketing status of dendrimers will be discussed.
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Affiliation(s)
| | | | | | | | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of RajasthanKishangarh, India
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Heyder RS, Zhong Q, Bazito RC, da Rocha SRP. Cellular internalization and transport of biodegradable polyester dendrimers on a model of the pulmonary epithelium and their formulation in pressurized metered-dose inhalers. Int J Pharm 2017; 520:181-194. [PMID: 28161666 DOI: 10.1016/j.ijpharm.2017.01.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/23/2016] [Accepted: 01/28/2017] [Indexed: 02/08/2023]
Abstract
The purpose of this study was to evaluate the effect of generation and surface PEGylation of degradable polyester-based dendrimers nanocarriers on their interactions with an in vitro model of the pulmonary epithelium as well as to assess the ability to formulate such carriers in propellant-based, portable oral-inhalation devices to determine their potential for local and systemic delivery of drugs to and through the lungs. Hydroxyl (-OH) terminated polyester dendrimers of generation 3 and 4 (G3, and G4) were synthesized using a divergent approach. G4 was surface-modified with PEG (1,000Da). All dendrimers and their building blocks were determined to be highly compatible with the model pulmonary epithelium, with toxicity profiles much more favorable than non-degradable polyamidoamine dendrimers (PAMAM). The transport of the species from the apical to basolateral side across polarized Calu-3 monolayers showed to be generation and surface-chemistry (PEGylation) dependent. The extent of the transport is modulated by their interaction with the polarized epithelium and their transient opening of the tight junctions. G3 was the one most efficiently internalized by the epithelium, and had a small impact on the integrity of the monolayer. On the other hand, the PEGylated G4 was the one least internalized by the polarized epithelium, and at the same time had a more pronounced transient impact on the cellular junctions, resulting in more efficient transport across the cell monolayer. PEGylation of the dendrimer surface played other roles as well. PEGylation modulated the degradation profile of the dendrimer, slowing the process in a step-wise fashion - first the PEG layer is shed and then the dendrimer starts degrading. PEGylation also helped increase the solvation of the nanocarriers by the hydrofluoroalkane propellant used in pressurized metered-dose inhalers, resulting in formulations with excellent dispersibility and aerosol quality (deep lung deposition of 88.5%), despite their very small geometric diameter. The combined in vitro and formulation performance results shown here demonstrated that degradable, modified polyester dendrimers may serve as a valuable platform that can be tailored to target the lung tissue for treating local diseases, or the circulation, using the lungs as pathway to the bloodstream.
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Affiliation(s)
- Rodrigo S Heyder
- Department of Chemical Engineering and Materials Science, Wayne State University, 48202, Detroit, MI, USA; Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Qian Zhong
- Department of Chemical Engineering and Materials Science, Wayne State University, 48202, Detroit, MI, USA
| | - Reinaldo C Bazito
- Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Sandro R P da Rocha
- Department of Chemical Engineering and Materials Science, Wayne State University, 48202, Detroit, MI, USA.
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Sharma AK, Gothwal A, Kesharwani P, Alsaab H, Iyer AK, Gupta U. Dendrimer nanoarchitectures for cancer diagnosis and anticancer drug delivery. Drug Discov Today 2016; 22:314-326. [PMID: 27671487 DOI: 10.1016/j.drudis.2016.09.013] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/20/2016] [Accepted: 09/16/2016] [Indexed: 12/14/2022]
Abstract
Dendrimers are novel nanoarchitectures with unique properties including a globular 3D shape, a monodispersed unimicellar nature and a nanometric size range. The availability of multiple peripheral functional groups and tunable surface engineering enable the facile modification of the dendrimer surface with different therapeutic drugs, diagnostic agents and targeting ligands. Drug encapsulation, and solubilizing and passive targeting also equally contribute to the therapeutic use of dendrimers. In this review, we highlight recent advances in the delivery of anticancer drugs using dendrimers, as well as other biomedical and diagnostic applications. Taken together, the immense potential and utility of dendrimers are envisaged to have a significant positive impact on the growing arena of drug delivery and targeting.
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Affiliation(s)
- Ashok Kumar Sharma
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Avinash Gothwal
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Prashant Kesharwani
- Department of Pharmaceutical Technology, School of Pharmacy, The International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, Kuala Lumpur 57000, Malaysia.
| | - Hashem Alsaab
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, USA
| | - Arun K Iyer
- Use-Inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave, Detroit, MI 48201, USA; Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University, School of Medicine, Detroit, MI 48201, USA.
| | - Umesh Gupta
- Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, Ajmer, Rajasthan 305817, India.
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Yavuz B, Bozdağ Pehlivan S, Sümer Bolu B, Nomak Sanyal R, Vural İ, Ünlü N. Dexamethasone – PAMAM dendrimer conjugates for retinal delivery: preparation, characterization and in vivo evaluation. J Pharm Pharmacol 2016; 68:1010-20. [DOI: 10.1111/jphp.12587] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 05/14/2016] [Indexed: 01/04/2023]
Abstract
Abstract
Objective
Ocular diseases affecting retina, such as diabetic retinopathy (DR), age-related macular degeneration (AMD) and glaucoma are the major causes of blindness, and their treatment is still a challenge due to the special structure of the eye. The purpose of this study was to prepare a sustained release DEX conjugate formulation with enhanced ocular permeation using poly(amidoamine) (PAMAM) dendrimers and to evaluate the effects of conjugation on DEX release and ocular residence time.
Methods
PAMAM G3.5 and PAMAM G4.5 dendrimers were used to prepare DEX conjugates, and conjugation was confirmed using 1H-NMR. Formulations were evaluated in terms of drug release in the presence of ocular enzymes and cytotoxicity on ARPE19 cell lines. Fluorotron analysis was performed and ocular pharmacokinetic properties of DEX–PAMAM conjugates were studied in Sprague Dawley rats following intravitreal and subconjunctival applications.
Key Findings
The results indicated that DEX–PAMAM conjugates were able to enhance ocular permeability and ocular tissue levels of DEX following subconjunctival injection, and results were encouraging when compared to the literature that has reported DEX getting cleared from vitreous in 3 h.
Conclusion
Current studies are focused on formulation improvement to enhance hydrolysis and clearance time.
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Affiliation(s)
- Burçin Yavuz
- Pharmaceutical Technology Department, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Sibel Bozdağ Pehlivan
- Pharmaceutical Technology Department, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | | | | | - İmran Vural
- Pharmaceutical Technology Department, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Nurşen Ünlü
- Pharmaceutical Technology Department, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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da Silva Santos S, Igne Ferreira E, Giarolla J. Dendrimer Prodrugs. Molecules 2016; 21:E686. [PMID: 27258239 PMCID: PMC6274429 DOI: 10.3390/molecules21060686] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 05/10/2016] [Accepted: 05/17/2016] [Indexed: 11/19/2022] Open
Abstract
The main objective of this review is to describe the importance of dendrimer prodrugs in the design of new drugs, presenting numerous applications of these nanocomposites in the pharmaceutical field. Therefore, the use of dendrimer prodrugs as carrier for drug delivery, to improve pharmacokinetic properties of prototype, to promote drug sustained-release, to increase selectivity and, consequently, to decrease toxicity, are just some examples of topics that have been extensively reported in the literature, especially in the last decade. The examples discussed here give a panel of the growing interest dendrimer prodrugs have been evoking in the scientific community.
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Affiliation(s)
- Soraya da Silva Santos
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil.
| | - Elizabeth Igne Ferreira
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil.
| | - Jeanine Giarolla
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, Avenue Professor Lineu Prestes, 580-Building 13, São Paulo SP, 05508-900, Brazil.
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Hsu H, Bugno J, Lee S, Hong S. Dendrimer‐based nanocarriers: a versatile platform for drug delivery. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [DOI: 10.1002/wnan.1409] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Hao‐Jui Hsu
- Department of Biopharmaceutical Sciences, College of PharmacyUniversity of IllinoisChicagoILUSA
| | - Jason Bugno
- Department of Biopharmaceutical Sciences, College of PharmacyUniversity of IllinoisChicagoILUSA
| | - Seung‐ri Lee
- Department of Biopharmaceutical Sciences, College of PharmacyUniversity of IllinoisChicagoILUSA
| | - Seungpyo Hong
- Department of Biopharmaceutical Sciences, College of PharmacyUniversity of IllinoisChicagoILUSA
- Department of Integrated OMICs for Biomedical Science and Underwood International CollegeYonsei UniversitySeoulKorea
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Yellepeddi VK, Ghandehari H. Poly(amido amine) dendrimers in oral delivery. Tissue Barriers 2016; 4:e1173773. [PMID: 27358755 DOI: 10.1080/21688370.2016.1173773] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/25/2016] [Accepted: 03/29/2016] [Indexed: 01/11/2023] Open
Abstract
Poly(amidoamine) (PAMAM) dendrimers have been extensively investigated for oral delivery applications due to their ability to translocate across the gastrointestinal epithelium. In this Review, we highlight recent advances in the evaluation of PAMAM dendrimers as oral drug delivery carriers. Specifically, toxicity, mechanisms of transepithelial transport, models of the intestinal epithelial barrier including isolated human intestinal tissue model, detection of dendrimers, and surface modification are discussed. We also highlight evaluation of various PAMAM dendrimer-drug conjugates for their ability to transport across gastrointestinal epithelium for improved oral bioavailability. In addition, current challenges and future trends for clinical translation of PAMAM dendrimers as carriers for oral delivery are discussed.
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Affiliation(s)
- Venkata K Yellepeddi
- College of Pharmacy, Roseman University of Health Sciences, South Jordan, UT, USA; Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA
| | - Hamidreza Ghandehari
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA
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Kalomiraki M, Thermos K, Chaniotakis NA. Dendrimers as tunable vectors of drug delivery systems and biomedical and ocular applications. Int J Nanomedicine 2015; 11:1-12. [PMID: 26730187 PMCID: PMC4694674 DOI: 10.2147/ijn.s93069] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dendrimers are large polymeric structures with nanosize dimensions (1-10 nm) and unique physicochemical properties. The major advantage of dendrimers compared with linear polymers is their spherical-shaped structure. During synthesis, the size and shape of the dendrimer can be customized and controlled, so the finished macromolecule will have a specific "architecture" and terminal groups. These characteristics will determine its suitability for drug delivery, diagnostic imaging, and as a genetic material carrier. This review will focus initially on the unique properties of dendrimers and their use in biomedical applications, as antibacterial, antitumor, and diagnostic agents. Subsequently, emphasis will be given to their use in drug delivery for ocular diseases.
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Affiliation(s)
- Marina Kalomiraki
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
| | - Kyriaki Thermos
- Department of Pharmacology, School of Medicine, University of Crete Voutes, Heraklion, Greece
| | - Nikos A Chaniotakis
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete Voutes, Heraklion, Greece
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Schulz JD, Gauthier MA, Leroux JC. Improving oral drug bioavailability with polycations? Eur J Pharm Biopharm 2015; 97:427-37. [DOI: 10.1016/j.ejpb.2015.04.025] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 03/30/2015] [Accepted: 04/22/2015] [Indexed: 11/24/2022]
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Sharma A, Kakkar A. Designing Dendrimer and Miktoarm Polymer Based Multi-Tasking Nanocarriers for Efficient Medical Therapy. Molecules 2015; 20:16987-7015. [PMID: 26393546 PMCID: PMC6332070 DOI: 10.3390/molecules200916987] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/09/2015] [Accepted: 09/11/2015] [Indexed: 11/28/2022] Open
Abstract
To address current complex health problems, there has been an increasing demand for smart nanocarriers that could perform multiple complimentary biological tasks with high efficacy. This has provoked the design of tailor made nanocarriers, and the scientific community has made tremendous effort in meeting daunting challenges associated with synthetically articulating multiple functions into a single scaffold. Branched and hyper-branched macromolecular architectures have offered opportunities in enabling carriers with capabilities including location, delivery, imaging etc. Development of simple and versatile synthetic methodologies for these nanomaterials has been the key in diversifying macromolecule based medical therapy and treatment. This review highlights the advancement from conventional "only one function" to multifunctional nanomedicine. It is achieved by synthetic elaboration of multivalent platforms in miktoarm polymers and dendrimers by physical encapsulation, covalent linking and combinations thereof.
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Affiliation(s)
- Anjali Sharma
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.
| | - Ashok Kakkar
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.
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Yuan ZX, Wu XJ, Mo J, Wang YL, Xu CQ, Lim LY. Renal targeted delivery of triptolide by conjugation to the fragment peptide of human serum albumin. Eur J Pharm Biopharm 2015; 94:363-71. [DOI: 10.1016/j.ejpb.2015.06.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 05/14/2015] [Accepted: 06/07/2015] [Indexed: 10/23/2022]
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Conda-Sheridan M, Lee SS, Preslar AT, Stupp SI. Esterase-activated release of naproxen from supramolecular nanofibres. Chem Commun (Camb) 2015; 50:13757-60. [PMID: 25251829 DOI: 10.1039/c4cc06340f] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanofibre forming peptide amphiphiles were conjugated to naproxen through an esterase-sensitive linker. The amount of naproxen released, in the presence of enzymes, was influenced by the linker conjugating the drug to the supramolecular assembly. In vitro studies showed the anti-inflammatory activity of the released drug was maintained.
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Affiliation(s)
- Martin Conda-Sheridan
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA.
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Singh U, Dar MM, Anayutullah S, Alam H, Manzoor N, Al-Thabaiti SA, Hashmi AA. Design and synthesis of Co(II) and Cu(II) complexes of a dendrimeric chelate: promising anticandidal potential of chelotherapeutic agents. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1040007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Urvashi Singh
- Department of Chemistry, Jamia Millia Islamia University, New Delhi, India
| | | | - Syed Anayutullah
- Department of Chemistry, Jamia Millia Islamia University, New Delhi, India
| | - Hammad Alam
- Department of Biosciences, Jamia Millia Islamia University, New Delhi, India
| | - Nikhat Manzoor
- Department of Biosciences, Jamia Millia Islamia University, New Delhi, India
| | | | - Athar Adil Hashmi
- Department of Chemistry, Jamia Millia Islamia University, New Delhi, India
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50
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Wu LP, Ficker M, Christensen JB, Trohopoulos PN, Moghimi SM. Dendrimers in Medicine: Therapeutic Concepts and Pharmaceutical Challenges. Bioconjug Chem 2015; 26:1198-211. [PMID: 25654320 DOI: 10.1021/acs.bioconjchem.5b00031] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Dendrimers are three-dimensional macromolecular structures originating from a central core molecule and surrounded by successive addition of branching layers (generation). These structures exhibit a high degree of molecular uniformity, narrow molecular weight distribution, tunable size and shape characteristics, as well as multivalency. Collectively, these physicochemical characteristics together with advancements in design of biodegradable backbones have conferred many applications to dendrimers in formulation science and nanopharmaceutical developments. These have included the use of dendrimers as pro-drugs and vehicles for solubilization, encapsulation, complexation, delivery, and site-specific targeting of small-molecule drugs, biopharmaceuticals, and contrast agents. We briefly review these advances, paying particular attention to attributes that make dendrimers versatile for drug formulation as well as challenging issues surrounding the future development of dendrimer-based medicines.
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Affiliation(s)
- Lin-Ping Wu
- †Centre for Pharmaceutical Nanotechnology and Nanotoxicology, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Mario Ficker
- ‡Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Jørn B Christensen
- ‡Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | | | - Seyed Moein Moghimi
- †Centre for Pharmaceutical Nanotechnology and Nanotoxicology, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.,∥NanoScience Centre, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
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