Mesoporous Bioactive Glasses: Fabrication, Structure, Drug Delivery Property, and Therapeutic Potential

Author(s):  
Ya-Ping Guo ◽  
Jun-ying Lü ◽  
Qin-Fei Ke
2020 ◽  
Vol 17 ◽  
Author(s):  
Shuyuan Li ◽  
Yue Tang ◽  
Yushun Dou

Background: Exosomes, one of the extracellular vesicles, are widely present in all biological fluids and play an important role in intercellular communication. Because of its hydrophobic lipid bilayer and aqueous hydrophilic core structure, it is considered a possible alternative to liposome drug delivery systems. Not only do they protect the cargo like liposomes during delivery, they are less toxic and better tolerated. However, due to the lack of sources and methods for obtaining enough exosomes, the therapeutic application of exosomes as drug carriers is limited. Methods: A literature search was performed using the ScienceDirect and PubMed electronic databases to obtain information from published literature on milk exosomes related to drug delivery. Results: Here, we briefly reviewed the current knowledge of exosomes, expounded the advantages of milk-derived exosomes over other delivery vectors, including a higher yield, the oral delivery characteristic and additional therapeutic benefits. The purification and drug loading methods of milk exosomes, and the current application of milk exosomes were also introduced. Conclusion: The emergence of milk-derived exosomes is expected to break through the limitations of exosomes as therapeutic carriers of drugs. We hope to raise awareness of the therapeutic potential of milk-derived exosomes as a new drug delivery system.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 427
Author(s):  
Amin Mirzaaghasi ◽  
Yunho Han ◽  
So-Hee Ahn ◽  
Chulhee Choi ◽  
Ji-Ho Park

Exosomes have attracted considerable attention as drug delivery vehicles because their biological properties can be utilized for selective delivery of therapeutic cargoes to disease sites. In this context, analysis of the in vivo behaviors of exosomes in a diseased state is required to maximize their therapeutic potential as drug delivery vehicles. In this study, we investigated biodistribution and pharmacokinetics of HEK293T cell-derived exosomes and PEGylated liposomes, their synthetic counterparts, into healthy and sepsis mice. We found that biodistribution and pharmacokinetics of exosomes were significantly affected by pathophysiological conditions of sepsis compared to those of liposomes. In the sepsis mice, a substantial number of exosomes were found in the lung after intravenous injection, and their prolonged blood residence was observed due to the liver dysfunction. However, liposomes did not show such sepsis-specific effects significantly. These results demonstrate that exosome-based therapeutics can be developed to manage sepsis and septic shock by virtue of their sepsis-specific in vivo behaviors.


Author(s):  
Vijay R. Salunkhe ◽  
Prasanna S. Patil ◽  
Ganesh H. Wadkar ◽  
Somnath D. Bhinge

Herbal medicines have tremendous therapeutic potential that can explored across various effective drug delivery system. Decoctions, herbal teas, tinctures, glyceritum, oxymel, and use much soap, herbal tablets, herbal capsules, and herbal cream, herbal books, and prepared the confection of the most commonly available forms of dosage. The less use of herbal formulations in recent decades due to their lack of standardization. It is possible to use plant extract and isolated constituents to overcome this problem. But these phytoconstituents are suffering from drawbacks, mostly due to problems with stability and low lipid solubility. Novel drug delivery such as liposomes plays an important role in problem solving. Infact, compliance with the patient also improves. The review article discusses the recent status of new herbal liposomal formulations and describes the different ways in which these formulations are prepared.


Author(s):  
И.Ю. Малышев ◽  
Л.В. Кузнецова ◽  
О.П. Буданова

В обзоре представлены современные данные о механизмах диагностики, планирования и оценки успешности терапии различных заболеваний с помощью экзосом, об использовании их как нанопереносчиков (т.е. нановезикул для эффективной доставки молекул). За последние годы разработано большое количество разных, в основном синтетических, систем доставки лекарственных средств, недостатками этих систем является плохая биосовместимость и органическая неспособность к высокоточной доставке загруженных веществ. По сравнению с синтетическими системами доставки лекарственных средств, экзосомы - вследствие своего естественного происхождения - могут обладать большими преимуществами, такими, как лучшая биосовместимость и повышенная устойчивость к разрушительному воздействию иммунной системы. Описана технология производства наноструктур, разработка и производство с помощью бионанотехнологий так называемых «полностью синтетических экзосомоподобных нановезикул», преимущества и недостатки этих методов. This review presents current data on mechanisms for diagnosis, planning, and evaluation of success in the treatment of various diseases using exosomes as nanocarriers (i.e., nanovesicles for efficient delivery of molecules). In recent years, a large number of different, mainly synthetic drug delivery systems has been developed. Disadvantages of these systems are poor biocompatibility and organic inability to deliver high-precision loaded substances. Compared with synthetic drug delivery systems, exosomes due to their natural origin may provide great advantages, such as better biocompatibility and increased resistance to detrimental effects of the immune system. This review describes in detail a technology of nanostructure production, the development and production of so-called fully synthetic exosome-like nanovesicles using bionanotechnology, and advantages and disadvantages of these methods.


2014 ◽  
Vol 96 ◽  
pp. 54-60 ◽  
Author(s):  
Anahí Philippart ◽  
Elena Boccardi ◽  
Lucia Pontiroli ◽  
Ana Maria Beltrán ◽  
Alexandra Inayat ◽  
...  

Novel silica-based bioactive glasses were successfully prepared by the sol-gel method. The optimized glass composition for fabrication of the scaffolds was (in mol.%) 60% SiO2 – 30% CaO - 5% Na2O - 5% P2O5 (60S30C5N5P). This composition was confirmed to develop a thick hydroxycarbonate apatite (HCA) layer in Simulated Body Fluid (SBF) after 7 days, as revealed by Fourier Transform Infrared Spectroscopy (FTIR), indicating the bioactive character of the scaffolds. The mesoporous nature of the glass structure allows the load of tetracycline and a sustained release of the drug in PBS during 7 days was measured.


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