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Karadurmus L, Erturk AS. Recent emerging trends in dendrimer research: Electrochemical sensors and their multifaceted applications in biomedical fields or healthcare. Biosens Bioelectron 2025; 273:117172. [PMID: 39823858 DOI: 10.1016/j.bios.2025.117172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2024] [Revised: 01/09/2025] [Accepted: 01/13/2025] [Indexed: 01/20/2025]
Abstract
Dendrimers enhance the selectivity and sensitivity of sensors through their synthetic, highly branched, three-dimensional structures and large surface area. This unique architecture enables precise functionalization with various recognition elements, significantly improving the specificity and sensitivity of electrochemical sensors for detecting disease markers, biomolecules, and environmental pollutants. Dendrimer-based electrochemical sensors offer promising advancements in healthcare, such as detecting biomarkers for heart disease, monitoring blood glucose levels, and sensitively determining cancer-related proteins. Additionally, incorporating metals and conductive polymers into dendrimer nanocomposites can further enhance sensor performance. This review article provides a detailed overview of dendrimer's history, structure, properties, electrochemical properties, and synthesis methods. Particular attention has been paid to recent developments in the applications of dendrimers including electrochemical sensors, drug delivery, gene therapy and bioimaging. Recent progress in various applications of dendrimer-based electrochemical sensors developed over the last seven years, focusing on their healthcare applications and discussing the primary goals and challenges that will shape future research in this field, is also critically analyzed. These advances in dendrimer technology hold great potential for the development of novel therapeutics and expanded applications in sensor design.
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Affiliation(s)
- Leyla Karadurmus
- Department of Analytical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, 02040, Türkiye
| | - Ali Serol Erturk
- Department of Analytical Chemistry, Faculty of Pharmacy, Adiyaman University, Adiyaman, 02040, Türkiye.
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Gupta P, Sharma A, Mittal V. Polymeric Vehicles for Nucleic Acid Delivery: Enhancing the Therapeutic Efficacy and Cellular Uptake. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2024; 18:276-293. [PMID: 39356099 DOI: 10.2174/0126673878324536240805060143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/19/2024] [Accepted: 07/02/2024] [Indexed: 10/03/2024]
Abstract
BACKGROUND Therapeutic gene delivery may be facilitated by the use of polymeric carriers. When combined with nucleic acids to form nanoparticles or polyplexes, a variety of polymers may shield the cargo from in vivo breakdown and clearance while also making it easier for it to enter intracellular compartments. AIM AND OBJECTIVES Polymer synthesis design choices result in a wide variety of compounds and vehicle compositions. Depending on the application, these characteristics may be changed to provide enhanced endosomal escape, longer-lasting distribution, or stronger connection with nucleic acid cargo and cells. Here, we outline current methods for delivering genes in preclinical and clinical settings using polymers. METHODOLOGY Significant therapeutic outcomes have previously been attained using genetic material- delivering polymer vehicles in both in-vitro and animal models. When combined with nucleic acids to form nanoparticles or polyplexes, a variety of polymers may shield the cargo from in vivo breakdown and clearance while also making it easier for it to enter intracellular compartments. Many innovative diagnoses for nucleic acids have been investigated and put through clinical assessment in the past 20 years. RESULTS Polymer-based carriers have additional delivery issues due to their changes in method and place of biological action, as well as variances in biophysical characteristics. We cover recent custom polymeric carrier architectures that were tuned for nucleic acid payloads such genomemodifying nucleic acids, siRNA, microRNA, and plasmid DNA. CONCLUSION In conclusion, the development of polymeric carriers for gene delivery holds promise for therapeutic applications. Through careful design and optimization, these carriers can overcome various challenges associated with nucleic acid delivery, offering new avenues for treating a wide range of diseases.
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Affiliation(s)
- Parul Gupta
- Department of Pharmaceutics, Guru Gobind Singh College of Pharmacy, Yamunanagar, Haryana, 135001, India
| | - Anjali Sharma
- Department of Pharmaceutics, Guru Gobind Singh College of Pharmacy, Yamunanagar, Haryana, 135001, India
| | - Vishnu Mittal
- Department of Pharmaceutics, Guru Gobind Singh College of Pharmacy, Yamunanagar, Haryana, 135001, India
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Hashemi M, Aparviz R, Beickzade M, Paskeh MDA, Kheirabad SK, Koohpar ZK, Moravej A, Dehghani H, Saebfar H, Zandieh MA, Salimimoghadam S, Rashidi M, Taheriazam A, Entezari M, Samarghandian S. Advances in RNAi therapies for gastric cancer: Targeting drug resistance and nanoscale delivery. Biomed Pharmacother 2023; 169:115927. [PMID: 38006616 DOI: 10.1016/j.biopha.2023.115927] [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: 11/23/2022] [Revised: 11/13/2023] [Accepted: 11/20/2023] [Indexed: 11/27/2023] Open
Abstract
Gastric cancer poses a significant health challenge, and exploring innovative therapeutic strategies is imperative. RNA interference (RNAi) has employed as an important therapeutic strategy for diseases by selectively targeting key pathways involved in diseases pathogenesis. Small interfering RNA (siRNA), a potent RNAi tool, possesses the capability to silence genes and downregulate their expression. This review provides a comprehensive examination of the potential applications of small interfering RNA (siRNA) and short hairpin RNA (shRNA), supplemented by an in-depth analysis of nanoscale delivery systems, in the context of gastric cancer treatment. The potential of siRNA to markedly diminish the proliferation and invasion of gastric cancer cells through the modulation of critical molecular pathways, including PI3K, Akt, and EMT, is highlighted. Besides, siRNA demonstrates its efficacy in inducing chemosensitivity in gastric tumor cells, thus impeding tumor progression. However, the translational potential of unmodified siRNA faces challenges, particularly in vivo and during clinical trials. To address this, we underscore the pivotal role of nanostructures in facilitating the delivery of siRNA to gastric cancer cells, effectively suppressing their progression and enhancing gene silencing efficiency. These siRNA-loaded nanoparticles exhibit robust internalization into gastric cancer cells, showcasing their potential to significantly reduce tumor progression. The translation of these findings into clinical trials holds promise for advancing the treatment of gastric cancer patients.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rezvaneh Aparviz
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Marzie Beickzade
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahshid Deldar Abad Paskeh
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Simin Khorsand Kheirabad
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Zeinab Khazaei Koohpar
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Cell and Molecular Biology, Faculty of Biological Sciences, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Amir Moravej
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hossein Dehghani
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Medical Laboratory Sciences, Islamic Azad University, Tehran Medical Sciences, Tehran, Iran
| | - Hamidreza Saebfar
- European University Association, League of European Research Universities, University of Milan, Italy
| | - Mohammad Arad Zandieh
- Department of Food Hygiene and Quality Control, Division of Epidemiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Saeed Samarghandian
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran.
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Mejlsøe SL, Christensen JB. Dendrimers in drug delivery. ADVANCED AND MODERN APPROACHES FOR DRUG DELIVERY 2023:357-387. [DOI: 10.1016/b978-0-323-91668-4.00005-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2025]
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Li H, Zha S, Li H, Liu H, Wong KL, All AH. Polymeric Dendrimers as Nanocarrier Vectors for Neurotheranostics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203629. [PMID: 36084240 DOI: 10.1002/smll.202203629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Dendrimers are polymers with well-defined 3D branched structures that are vastly utilized in various neurotheranostics and biomedical applications, particularly as nanocarrier vectors. Imaging agents can be loaded into dendrimers to improve the accuracy of diagnostic imaging processes. Likewise, combining pharmaceutical agents and anticancer drugs with dendrimers can enhance their solubility, biocompatibility, and efficiency. Practically, by modifying ligands on the surface of dendrimers, effective therapeutic and diagnostic platforms can be constructed and implemented for targeted delivery. Dendrimer-based nanocarriers also show great potential in gene delivery. Since enzymes can degrade genetic materials during their blood circulation, dendrimers exhibit promising packaging and delivery alternatives, particularly for central nervous system (CNS) treatments. The DNA and RNA encapsulated in dendrimers represented by polyamidoamine that are used for targeted brain delivery, via chemical-structural adjustments and appropriate generation, significantly improve the correlation between transfection efficiency and cytotoxicity. This article reports a comprehensive review of dendrimers' structures, synthesis processes, and biological applications. Recent progress in diagnostic imaging processes and therapeutic applications for cancers and other CNS diseases are presented. Potential challenges and future directions in the development of dendrimers, which provide the theoretical basis for their broader applications in healthcare, are also discussed.
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Affiliation(s)
- Hengde Li
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Shuai Zha
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, P. R. China
| | - Haolan Li
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Haitao Liu
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Ka-Leung Wong
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
| | - Angelo H All
- Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon, Hong Kong SAR, P. R. China
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Abstract
The development of molecular nanostructures with well-defined particle size and shape is of eminent interest in biomedicine. Among many studied nanostructures, dendrimers represent the group of those most thoroughly characterized ones. Due to their unique structure and properties, dendrimers are very attractive for medical and pharmaceutical applications. Owing to the controllable cavities inside the dendrimer, guest molecules may be encapsulated, and highly reactive terminal groups are susceptible to further modifications, e.g., to facilitate target delivery. To understand the potential of these nanoparticles and to predict and avoid any adverse cellular reactions, it is necessary to know the mechanisms responsible for an efficient dendrimer uptake and the destination of their intracellular journey. In this article, we summarize the results of studies describing the dendrimer uptake, traffic, and efflux mechanisms depending on features of specific nanoparticles and cell types. We also present mechanisms of dendrimers responsible for toxicity and alteration in signal transduction pathways at the cellular level.
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Affiliation(s)
- Barbara Ziemba
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
| | - Maciej Borowiec
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
| | - Ida Franiak-Pietryga
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland.,Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
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Piotrowski-Daspit AS, Kauffman AC, Bracaglia LG, Saltzman WM. Polymeric vehicles for nucleic acid delivery. Adv Drug Deliv Rev 2020; 156:119-132. [PMID: 32585159 PMCID: PMC7736472 DOI: 10.1016/j.addr.2020.06.014] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/09/2020] [Accepted: 06/13/2020] [Indexed: 12/20/2022]
Abstract
Polymeric vehicles are versatile tools for therapeutic gene delivery. Many polymers-when assembled with nucleic acids into vehicles-can protect the cargo from degradation and clearance in vivo, and facilitate its transport into intracellular compartments. Design options in polymer synthesis yield a comprehensive range of molecules and resulting vehicle formulations. These properties can be manipulated to achieve stronger association with nucleic acid cargo and cells, improved endosomal escape, or sustained delivery depending on the application. Here, we describe current approaches for polymer use and related strategies for gene delivery in preclinical and clinical applications. Polymer vehicles delivering genetic material have already achieved significant therapeutic endpoints in vitro and in animal models. From our perspective, with preclincal assays that better mimic the in vivo environment, improved strategies for target specificity, and scalable techniques for polymer synthesis, the impact of this therapeutic approach will continue to expand.
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Affiliation(s)
| | - Amy C Kauffman
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States of America; Corning Life Sciences, Kennebunk, ME 04043, United States of America
| | - Laura G Bracaglia
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States of America
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, United States of America; Department of Chemical & Environmental Engineering, Yale University, New Haven, CT 06511, United States of America; Department of Cellular & Molecular Physiology, Yale School of Medicine, New Haven, CT 06510, United States of America; Department of Dermatology, Yale School of Medicine, New Haven, CT 06510, United States of America.
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Raval N, Jogi H, Gondaliya P, Kalia K, Tekade RK. Cyclo-RGD Truncated Polymeric Nanoconstruct with Dendrimeric Templates for Targeted HDAC4 Gene Silencing in a Diabetic Nephropathy Mouse Model. Mol Pharm 2020; 18:641-666. [PMID: 32453574 DOI: 10.1021/acs.molpharmaceut.0c00094] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Diabetic nephropathy (DN), a chronic progressive kidney disease, is a significant complication of diabetes mellitus. Dysregulation of the histone deacetylases (HDACs) gene has been implicated in the pathogenesis of DN. Hence, the HDAC-inhibitors have emerged as a critical class of therapeutic agents in DN; however, the currently available HDAC4-inhibitors are mostly nonselective in nature as well as inhibit multiple HDACs. RNA interference of HDAC4 (HDAC4 siRNA) has shown immense promise, but the clinical translation has been impeded due to lack of a targeted, specific, and in vivo applicable delivery modality. In the present investigation, we examined Cyclo(RGDfC) (cRGD) truncated polymeric nanoplex with dendrimeric templates for targeted HDAC4 Gene Silencing. The developed nanoplex exhibited enhanced encapsulation of siRNA and offered superior protection against serum RNase nucleases degradation. The nanoplex was tested on podocytes (in vitro), wherein it showed selective binding to the αvβ3 integrin receptor, active cellular uptake, and significant in vitro gene silencing. The in vivo experiments showed remarkable suppression of the HDAC4 and inhibition in the progression of renal fibrosis in the Streptozotocin (STZ) induced DN C57BL/6 mice model. Histopathological and toxicological studies revealed nonsignificant abnormality/toxicity with the nanoplex. Conclusively, nanoplex was found as a promising tactic for targeted therapy of podocytes and could be extended for other kidney-related ailments.
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Affiliation(s)
- Nidhi Raval
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Hardi Jogi
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Piyush Gondaliya
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Kiran Kalia
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
| | - Rakesh K Tekade
- National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Palaj (An Institute of National Importance), Opposite Air Force Station, Gandhinagar 382355, Gujarat, India
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Li G, Zhang Y, Tang W, Zheng J. Comprehensive investigation of in vitro hemocompatibility of surface modified polyamidoamine nanocarrier. Clin Hemorheol Microcirc 2020; 74:267-279. [PMID: 31476147 DOI: 10.3233/ch-190641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Guanhua Li
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Yu Zhang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong
| | - Wei Tang
- Department of Abdominal Surgery, Integrated Hospital of Traditional Chinese Medicine of Southern Medical University, Guangzhou, Guangdong
| | - Junmeng Zheng
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
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Wang Y, Sun G, Gong Y, Zhang Y, Liang X, Yang L. Functionalized Folate-Modified Graphene Oxide/PEI siRNA Nanocomplexes for Targeted Ovarian Cancer Gene Therapy. NANOSCALE RESEARCH LETTERS 2020; 15:57. [PMID: 32140846 PMCID: PMC7058751 DOI: 10.1186/s11671-020-3281-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/12/2020] [Indexed: 05/05/2023]
Abstract
Gene therapy is emerging as a valid method for the treatment of ovarian cancer, including small interfering RNA (siRNA). Although it is so powerful, few targeting efficient gene delivery systems seriously hindered the development of gene therapy. In this study, we synthesized a novel gene vector PEG-GO-PEI-FA by functionalized graphene oxide (GO), in which folic acid (FA) can specifically bind to the folate receptor (FR), which is overexpressed in ovarian cancer. Characterizations of the nanocomplexes were evaluated by dynamic light scattering (DLS), atomic force microscopy (AFM), and Fourier transform infrared spectroscopy (FTIR). The siRNA condensation ability and stability were assessed by agarose gel electrophoresis. Cellular uptake efficiency and lysosomal escape ability in ovarian cancer cells were investigated by confocal laser scanning microscopy. Furthermore, cellular biosafety of the system and inhibitory of the siRNA tolerability were evaluated by CCK-8 assay. The size of the PEG-GO-PEI-FA nanocomplexes was 216.1 ± 2.457 nm, exhibiting mild cytotoxicity in ovarian cancer cells. With high uptake efficiency, PEG-GO-PEI-FA can escape from the lysosome rapidly and release the gene. Moreover, PEG-GO-PEI-FA/siRNA can effectively inhibit the growth of ovarian cancer cells. By and large, the PEG-GO-PEI-FA/siRNA may offer a promising strategy for siRNA delivery in the treatment of FR-positive ovarian carcinoma or similar tumors.
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Affiliation(s)
- Yunfei Wang
- Department of Gynecology, Affiliated Hospital of Jining Medical University, Jining Medical University, 89 Guhuai Road, Jining, 272029, Shandong, People's Republic of China.
| | - Guoping Sun
- Department of Pharmacy, Qingdao Seventh People's Hospital, 299 Nanjing Road, Qingdao, 266034, Shandong, People's Republic of China
| | - Yingying Gong
- Department of Gynecology, Affiliated Hospital of Jining Medical University, Jining Medical University, 89 Guhuai Road, Jining, 272029, Shandong, People's Republic of China
| | - Yuying Zhang
- Department of Gynecology, Affiliated Hospital of Jining Medical University, Jining Medical University, 89 Guhuai Road, Jining, 272029, Shandong, People's Republic of China
| | - Xiaofei Liang
- Department of State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, 200032, People's Republic of China
| | - Linqing Yang
- Department of Gynecology, Affiliated Hospital of Jining Medical University, Jining Medical University, 89 Guhuai Road, Jining, 272029, Shandong, People's Republic of China
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Construction of saturated odd- and even-numbered hyaluronan oligosaccharide building block library. Carbohydr Polym 2020; 231:115700. [DOI: 10.1016/j.carbpol.2019.115700] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/30/2019] [Accepted: 11/30/2019] [Indexed: 11/23/2022]
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Xie H, Li L, Sun Y, Wang Y, Gao S, Tian Y, Ma X, Guo C, Bo F, Zhang L. An Available Strategy for Nasal Brain Transport of Nanocomposite Based on PAMAM Dendrimers via In Situ Gel. NANOMATERIALS 2019; 9:nano9020147. [PMID: 30682799 PMCID: PMC6409925 DOI: 10.3390/nano9020147] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/13/2019] [Accepted: 01/15/2019] [Indexed: 12/13/2022]
Abstract
Polyamidoamine (PAMAM) dendrimers are efficient drug carriers. The presence of a physiological pathway for nasal brain transport provides a potential path for direct brain-targeted delivery of dendrimer nanocomposites. In this study, we synthesized PAMAM dendrimer composites with a nanoscale size; the particle size of PAE (Paeonol)/mPEG (the heterofunctional PEG polymer with a methoxy)-PAMAM G5.NHAc and mPEG-PAMAM G5.NH₂-FITC were 72.41 ± 11.58 nm and 96.51 ± 7.77 nm, and the zeta potential of PAE/mPEG-PAMAM G5.NHAc and mPEG-PAMAM G5.NH₂-FITC were + 0.57 ± 0.11 mv and + 9.60 ± 0.41 mv, respectively. The EE% and DL% of PAE in PAE/mPEG-PAMAM G5.NHAc were 53.77% and 13.92%, respectively. PAE/mPEG-PAMAM G5.NHAc/DGG ionic-sensitive in situ gel was prepared, the viscosity of solution and gel state were 112 ± 3.2 mPa and 1403 ± 38.5 mPa, respectively. The in vitro goat mucoadhesive strength of the gel was 4763.36 ± 85.39 dyne/cm². In situ gel system was proven to be a non-Newtonian pseudo-plastic fluid with shear thinning, thixotropy and yield stress. The optimal model of PAE released from PAE/mPEG-PAMAM G5.NHAc and PAE/mPEG-PAMAM G5.NHAc/DGG were the Higuchi equation and the Korsmeyer-Peppas equation, respectively. The cytotoxicity of the nanocomposites showed a concentration-dependence, and the cell viabilities of PAE/mPEG-PAMAM G5.NHAc were both higher than 95% between 0.0001 μM and 10 μM. mPEG-PAMAM G5.NH₂-FITC was efficiently taken up by cells and exhibited strong fluorescence in the cytoplasm and nucleus. Significant accumulation of nanocomposites was observed in the brain after administration of the in situ gel group, and maximum accumulation was reached at 12 h. A small amount of accumulation was observed in the nanocomposite solution group only at 2 h. Therefore, the direct nasal brain transport efficiency of PAMAM dendrimer nanocomposites can be significantly improved after combining with in situ gel. PAMAM dendrimer nanocomposite/DGG is a potential drug delivery system for nasal brain transport.
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Affiliation(s)
- Huichao Xie
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Lingjun Li
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yue Sun
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yuzhen Wang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Shuang Gao
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Yuan Tian
- College of Graduate, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Xuemei Ma
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Chengcheng Guo
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Fumin Bo
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| | - Li Zhang
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
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