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Kurochkin MA, Sindeeva OA, Abdurashitov AS, Pyataev NA, Gorin DA, Sukhorukov GB. In Vivo Laser-Induced Vasoactive Microenvironmental Setting via a Stimuli-Responsive Microstructured Depot. Biomacromolecules 2023. [PMID: 37289998 DOI: 10.1021/acs.biomac.3c00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A stimuli-responsive polymeric three-dimensional microstructured film (PTMF) is a 3D structure with an array of sealed chambers on its external surface. In this work, we demonstrate the use of PTMF as a laser-triggered stimulus-response system for local in vivo targeted blood vessels stimulation by vasoactive substances. The native vascular networks of the mouse mesentery were used as model tissues. Epinephrine and KCl were used as vasoactive agents that were sealed into individual chambers upon precipitation in the amount of pictograms. We demonstrated the method for non-damaged one-by-one chamber activation using a focused 532 nm laser light passed through biological tissues. To avoid laser-induced photothermal damage to biological tissues, the PTMF was functionalized with Nile Red dye, which effectively absorbs laser light. Chemically stimulated blood vessel fluctuations were analyzed using digital image processing methods. Hemodynamics changes were measured and visualized using the particle image velocimetry approach.
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Affiliation(s)
- Maxim A Kurochkin
- Skolkovo Institute of Science and Technology, 3 Nobelya Str., Moscow 143025, Russia
| | - Olga A Sindeeva
- Skolkovo Institute of Science and Technology, 3 Nobelya Str., Moscow 143025, Russia
| | | | - Nikolay A Pyataev
- National Research Ogarev Mordovia State University, 68 Bolshevistskaya Str., Saransk 430005, Russia
| | - Dmitry A Gorin
- Skolkovo Institute of Science and Technology, 3 Nobelya Str., Moscow 143025, Russia
| | - Gleb B Sukhorukov
- Skolkovo Institute of Science and Technology, 3 Nobelya Str., Moscow 143025, Russia
- School of Engineering and Materials Science, Queen Mary University of London, Mile End road, London E1 4NS, U.K
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2
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Flexible polymeric patch based nanotherapeutics against non-cancer therapy. Bioact Mater 2022; 18:471-491. [PMID: 35415299 PMCID: PMC8971585 DOI: 10.1016/j.bioactmat.2022.03.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 12/16/2022] Open
Abstract
Flexible polymeric patches find widespread applications in biomedicine because of their biological and tunable features including excellent patient compliance, superior biocompatibility and biodegradation, as well as high loading capability and permeability of drug. Such polymeric patches are classified into microneedles (MNs), hydrogel, microcapsule, microsphere and fiber depending on the formed morphology. The combination of nanomaterials with polymeric patches allows for improved advantages of increased curative efficacy and lowered systemic toxicity, promoting on-demand and regulated drug administration, thus providing the great potential to their clinic translation. In this review, the category of flexible polymeric patches that are utilized to integrate with nanomaterials is briefly presented and their advantages in bioapplications are further discussed. The applications of nanomaterials embedded polymeric patches in non-cancerous diseases were also systematically reviewed, including diabetes therapy, wound healing, dermatological disease therapy, bone regeneration, cardiac repair, hair repair, obesity therapy and some immune disease therapy. Alternatively, the limitations, latest challenges and future perspectives of such biomedical therapeutic devices are addressed. The most explored polymeric patches, such as microneedle, hydrogel, microsphere, microcapsule, and fiber are summarized. Polymeric patches integrated with a diversity of nanomaterials are systematically overviewed in non-cancer therapy. The future prospective for the development of polymeric patch based nanotherapeutics is discussed.
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3
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Sindeeva OA, Abdurashitov AS, Proshin PI, Kadrev AV, Kulikov OA, Shaparov BM, Sorokin NI, Ageev VP, Pyataev NA, Kritskiy A, Tishin A, Kamalov AA, Sukhorukov GB. Ultrasound-Triggerable Coatings for Foley Catheter Balloons for Local Release of Anti-Inflammatory Drugs during Bladder Neck Dilation. Pharmaceutics 2022; 14:pharmaceutics14102186. [PMID: 36297621 PMCID: PMC9609387 DOI: 10.3390/pharmaceutics14102186] [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: 09/06/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2022] Open
Abstract
Bladder neck contracture (BNC) is a complication of the surgical treatment of benign and malignant prostate conditions and is associated with the partial or complete blockage of urination. Correction of this condition usually requires repeated surgical intervention, which does not guarantee recovery. Balloon dilation is a minimally invasive alternative to the surgical dissection of tissues; however, it significantly reduces the patient’s quality of life. Additional local anti-inflammatory treatment may reduce the number of procedures requested and increase the attractiveness of this therapeutic strategy. Here, we report about an ultrathin biocompatible coating based on polylactic acid for Foley catheter balloons that can provide localized release of Prednol-L in the range of 56–99 µg in the BNC zone under conventional diagnostic ultrasound exposure. Note that the exposure of a transrectal probe with a conventional gray-scale ultrasound regimen with and without shear wave elastography (SWE) was comparably effective for Prednol-L release from the coating surface of a Foley catheter balloon. This strategy does not require additional manipulations by clinicians. The trigger for the drug release is the ultrasound exposure, which is applied for visualization of the balloon’s location during the dilation process. In vivo experiments demonstrated the absence of negative effects of the usage of a coated Foley catheter for balloon dilation of the bladder neck and urethra.
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Affiliation(s)
- Olga A. Sindeeva
- A.V. Zelmann Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, 121205 Moscow, Russia
- Correspondence: (O.A.S.); (G.B.S.)
| | - Arkady S. Abdurashitov
- A.V. Zelmann Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, 121205 Moscow, Russia
| | - Pavel I. Proshin
- A.V. Zelmann Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, 121205 Moscow, Russia
| | - Alexey V. Kadrev
- Ultrasound Diagnostics Department, Medical Research and Educational Center, Lomonosov Moscow State University, 27 Lomonosovsky Ave., 119192 Moscow, Russia
- Diagnostic Ultrasound Division, Russian Medical Academy of Continuous Professional Education, 1 Barrikadnaya Str., 125445 Moscow, Russia
| | - Oleg A. Kulikov
- Institute of Medicine, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Str., 430005 Saransk, Russia
| | - Boris M. Shaparov
- Department of Urology and Andrology, Faculty of Fundamental Medicine, Medical Scientific and Educational Center, Lomonosov Moscow State University, 27 Lomonosovsky Ave., 119192 Moscow, Russia
| | - Nikolay I. Sorokin
- Department of Urology and Andrology, Faculty of Fundamental Medicine, Medical Scientific and Educational Center, Lomonosov Moscow State University, 27 Lomonosovsky Ave., 119192 Moscow, Russia
| | - Valentin P. Ageev
- Institute of Medicine, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Str., 430005 Saransk, Russia
| | - Nikolay A. Pyataev
- Institute of Medicine, National Research Ogarev Mordovia State University, 68 Bolshevistskaya Str., 430005 Saransk, Russia
| | - Aleksandr Kritskiy
- LLC Magnetic Drug Delivery, AMT & C Group, 4 Promyshlennaya Str., Troitsk, 108840 Moscow, Russia
| | - Alexander Tishin
- LLC Magnetic Drug Delivery, AMT & C Group, 4 Promyshlennaya Str., Troitsk, 108840 Moscow, Russia
| | - Armais A. Kamalov
- Department of Urology and Andrology, Faculty of Fundamental Medicine, Medical Scientific and Educational Center, Lomonosov Moscow State University, 27 Lomonosovsky Ave., 119192 Moscow, Russia
| | - Gleb B. Sukhorukov
- A.V. Zelmann Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, 121205 Moscow, Russia
- Siberian State Medical University, 2 Moskovskiy Trakt, 634050 Tomsk, Russia
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
- Correspondence: (O.A.S.); (G.B.S.)
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4
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Schwieger J, Frisch AS, Rau TS, Lenarz T, Hügl S, Scheper V. 3D Printed Cell Culture Chamber for Testing the Effect of Pump-Based Chronic Drug Delivery on Inner Ear Tissue. Biomolecules 2022; 12:biom12040589. [PMID: 35454178 PMCID: PMC9032916 DOI: 10.3390/biom12040589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 11/16/2022] Open
Abstract
Cochlear hair cell damage and spiral ganglion neuron (SGN) degeneration are the main causes of sensory neural hearing loss. Cochlear implants (CIs) can replace the function of the hair cells and stimulate the SGNs electrically. The condition of the SGNs and their spatial distance to the CI are key factors for CI-functionality. For a better performance, a high number of neurons and a closer contact to the electrode are intended. Neurotrophic factors are able to enhance SGN survival and neurite outgrowth, and thereby might optimize the electrode-nerve interaction. This would require chronic factor treatment, which is not yet established for the inner ear. Investigations on chronic drug delivery to SGNs could benefit from an appropriate in vitro model. Thus, an inner ear inspired Neurite Outgrowth Chamber (NOC), which allows the incorporation of a mini-osmotic pump for long-term drug delivery, was designed and three-dimensionally printed. The NOC’s function was validated using spiral ganglion explants treated with ciliary neurotrophic factor, neurotrophin-3, or control fluid released via pumps over two weeks. The NOC proved to be suitable for explant cultivation and observation of pump-based drug delivery over the examined period, with neurotrophin-3 significantly increasing neurite outgrowth compared to the other groups.
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Affiliation(s)
- Jana Schwieger
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
- Cluster of Excellence “Hearing4all” EXC 1077/2, 30625 Hannover, Germany
- Correspondence: ; Tel.: +49-5115327262
| | - Anna Sophie Frisch
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
| | - Thomas S. Rau
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
- Cluster of Excellence “Hearing4all” EXC 1077/2, 30625 Hannover, Germany
| | - Thomas Lenarz
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
- Cluster of Excellence “Hearing4all” EXC 1077/2, 30625 Hannover, Germany
| | - Silke Hügl
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
- Cluster of Excellence “Hearing4all” EXC 1077/2, 30625 Hannover, Germany
| | - Verena Scheper
- Department of Otorhinolaryngology, Head and Neck Surgery, Hannover Medical School, 30625 Hannover, Germany; (A.S.F.); (T.S.R.); (T.L.); (S.H.); (V.S.)
- Lower Saxony Center for Biomedical Engineering, Implant Research and Development (NIFE), Stadtfelddamm 34, 30625 Hannover, Germany
- Cluster of Excellence “Hearing4all” EXC 1077/2, 30625 Hannover, Germany
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5
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Liu W, Huang N, Yang J, Peng L, Li J, Chen W. Characterization and application of porous polylactic acid films prepared by nonsolvent-induced phase separation method. Food Chem 2022; 373:131525. [PMID: 34774380 DOI: 10.1016/j.foodchem.2021.131525] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 11/01/2021] [Accepted: 11/01/2021] [Indexed: 01/18/2023]
Abstract
Nonsolvent-induced phase separation (NIPS) method was employed to prepare polylactic acid (PLA) films using N-methyl-2-pyrrolidone (NMP) as a nonsolvent. The morphology and structure of PLA films were characterized, and the application of the films in pork preservation was investigated. When 10 wt% NMP was added, film with uniform porous structures was obtained. The crystalline and Fourier-transform infrared spectra analyses indicated that the addition of NMP during the preparation of PLA films caused their crystalline properties to change, but had no effect on their composition. However, the 10 wt% NMP/PLA film had improved thermal stability, water vapor transmission and oxygen permeability. The results on the changes in pH, total volatile basic nitrogen content and total viable counts of pork during refrigerated storage indicated that the 10 wt% NMP/PLA film could more effectively extend the shelf life of pork than polyethylene film. This work demonstrates the potential of the porous PLA film in pork packaging.
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Affiliation(s)
- Wenlong Liu
- Sichuan Key Laboratory of Meat Processing, Chengdu University, Chengdu 610106, China
| | - Nanlan Huang
- Sichuan Key Laboratory of Meat Processing, Chengdu University, Chengdu 610106, China
| | - Junjie Yang
- Sichuan Key Laboratory of Meat Processing, Chengdu University, Chengdu 610106, China
| | - Lianxin Peng
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu 610106, China
| | - Jing Li
- College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China
| | - Weijun Chen
- Sichuan Key Laboratory of Meat Processing, Chengdu University, Chengdu 610106, China; College of Food and Biological Engineering, Chengdu University, Chengdu 610106, China.
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6
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Yang X, Song R, He L, Wu L, He X, Liu X, Tang H, Lu X, Ma Z, Tian P. Optimization mechanism and applications of ultrafast laser machining towards highly designable 3D micro/nano structuring. RSC Adv 2022; 12:35227-35241. [DOI: 10.1039/d2ra05148f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
The optimization mechanism of ultrafast laser machining is introduced. The specific applications of laser processed 3D micro/nano structures in optical, electrochemical and biomedical fields are elaborated, and perspectives are presented.
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Affiliation(s)
- Xiaomeng Yang
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Ruiqi Song
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Liang He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Leixin Wu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Xin He
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaoyu Liu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Hui Tang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xiaolong Lu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Zeyu Ma
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Peng Tian
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
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7
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Mordovina EA, Plastun VO, Abdurashitov AS, Proshin PI, Raikova SV, Bratashov DN, Inozemtseva OA, Goryacheva IY, Sukhorukov GB, Sindeeva OA. "Smart" Polylactic Acid Films with Ceftriaxone Loaded Microchamber Arrays for Personalized Antibiotic Therapy. Pharmaceutics 2021; 14:pharmaceutics14010042. [PMID: 35056938 PMCID: PMC8781070 DOI: 10.3390/pharmaceutics14010042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 11/24/2022] Open
Abstract
Bacterial infections are a severe medical problem, especially in traumatology, orthopedics, and surgery. The local use of antibiotics-elution materials has made it possible to increase the effectiveness of acute infections treatment. However, the infection prevention problem remains unresolved. Here, we demonstrate the fabrication of polylactic acid (PLA) “smart” films with microchamber arrays. These microchambers contain ceftriaxone as a payload in concentrations ranging from 12 ± 1 μg/cm2 to 38 ± 8 μg/cm2, depending on the patterned film thickness formed by the different PLA concentrations in chloroform. In addition, the release profile of the antibiotic can be prolonged up to 72 h in saline. At the same time, on the surface of agar plates, the antibiotic release time increases up to 96 h, which has been confirmed by the growth suppression of the Staphylococcus aureus bacteria. The efficient loading and optimal release rate are obtained for patterned films formed by the 1.5 wt % PLA in chloroform. The films produced from 1.5 and 2 wt % PLA solutions (thickness—0.42 ± 0.12 and 0.68 ± 0.16 µm, respectively) show an accelerated ceftriaxone release upon the trigger of the therapeutic ultrasound, which impacted as an expansion of the bacterial growth inhibition zone around the samples. Combining prolonged drug elution with the on-demand release ability of large cargo amount opens up new approaches for personalized and custom-tunable antibacterial therapy.
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Affiliation(s)
- Ekaterina A. Mordovina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.O.P.); (D.N.B.); (O.A.I.); (I.Y.G.)
- Correspondence: (E.A.M.); (O.A.S.)
| | - Valentina O. Plastun
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.O.P.); (D.N.B.); (O.A.I.); (I.Y.G.)
| | - Arkady S. Abdurashitov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (P.I.P.); (G.B.S.)
| | - Pavel I. Proshin
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (P.I.P.); (G.B.S.)
| | - Svetlana V. Raikova
- Saratov Hygiene Medical Research Center of the FBSI «FSC Medical and Preventive Health Risk Management Technologies», 1A Zarechnaya Str., 410022 Saratov, Russia;
- Department of Microbiology, Virology, and Immunology, Saratov State Medical University, 112 Bolshaya Kazachia Str., 410012 Saratov, Russia
| | - Daniil N. Bratashov
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.O.P.); (D.N.B.); (O.A.I.); (I.Y.G.)
| | - Olga A. Inozemtseva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.O.P.); (D.N.B.); (O.A.I.); (I.Y.G.)
| | - Irina Yu. Goryacheva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (V.O.P.); (D.N.B.); (O.A.I.); (I.Y.G.)
| | - Gleb B. Sukhorukov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (P.I.P.); (G.B.S.)
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Olga A. Sindeeva
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia; (A.S.A.); (P.I.P.); (G.B.S.)
- Correspondence: (E.A.M.); (O.A.S.)
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Fu P, Zhang J, Li H, Mak M, Xu W, Tao Z. Extracellular vesicles as delivery systems at nano-/micro-scale. Adv Drug Deliv Rev 2021; 179:113910. [PMID: 34358539 DOI: 10.1016/j.addr.2021.113910] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/23/2021] [Accepted: 07/28/2021] [Indexed: 12/11/2022]
Abstract
Extracellular vesicles (EVs) have shown significant promises as nano-/micro-size carriers in drug delivery and bioimaging. With more characteristics of EVs explored through tremendous research efforts, their unmatched physicochemical properties, biological features, and mechanical aspects make them unique vehicles, owning exceptional pharmacokinetics, circulatory metabolism and biodistribution pattern when delivering theranostic cargoes. In this review we firstly analyzed pros and cons of the EVs as a delivery platform. Secondly, compared to engineered nanoparticle delivery systems, such as biocompatible di-block co-polymers, rational design to improve EVs (exosomes in particular) were elaborated. Lastly, different pharmaceutical loading approaches into EVs were compared, reaching a conclusion on how to construct a clinically available and effective nano-/micro-carrier for a satisfactory medical mission.
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Affiliation(s)
- Peiwen Fu
- Jiangsu Province Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China; Zhenjiang Municipal Key Laboratory of High Technology for Basic and Translational Research on Exosomes, Zhenjiang 212013, China
| | - Jianguo Zhang
- Jiangsu Province Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China; Department of Critical Care Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - Haitao Li
- Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Michael Mak
- Department of Biomedical Engineering, School of Engineering and Applied Science, Yale University, New Haven 06520, USA.
| | - Wenrong Xu
- Jiangsu Province Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China; Zhenjiang Municipal Key Laboratory of High Technology for Basic and Translational Research on Exosomes, Zhenjiang 212013, China.
| | - Zhimin Tao
- Jiangsu Province Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China; Zhenjiang Municipal Key Laboratory of High Technology for Basic and Translational Research on Exosomes, Zhenjiang 212013, China.
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9
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Mordovina EA, Sindeeva OA, Abramova AM, Tsyupka DV, Atkin VS, Bratashov DN, Goryacheva IY, Sukhorukov GB. Controlled release of α-amylase from microchamber arrays containing carbon nanoparticle aggregates. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.11.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Sindeeva OA, Prikhozhdenko ES, Schurov I, Sedykh N, Goriainov S, Karamyan A, Mordovina EA, Inozemtseva OA, Kudryavtseva V, Shchesnyak LE, Abramovich RA, Mikhajlov S, Sukhorukov GB. Patterned Drug-Eluting Coatings for Tracheal Stents Based on PLA, PLGA, and PCL for the Granulation Formation Reduction: In Vivo Studies. Pharmaceutics 2021; 13:pharmaceutics13091437. [PMID: 34575513 PMCID: PMC8469052 DOI: 10.3390/pharmaceutics13091437] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 01/25/2023] Open
Abstract
Expandable metallic stent placement is often the only way to treat airway obstructions. Such treatment with an uncoated stent causes granulation proliferation and subsequent restenosis, resulting in the procedure’s adverse complications. Systemic administration of steroids drugs in high dosages slows down granulation tissue overgrowth but leads to long-term side effects. Drug-eluting coatings have been used widely in cardiology for many years to suppress local granulation and reduce the organism’s systemic load. Still, so far, there are no available analogs for the trachea. Here, we demonstrate that PLA-, PCL- and PLGA-based films with arrays of microchambers to accommodate therapeutic substances can be used as a drug-eluting coating through securely fixing on the surface of an expandable nitinol stent. PCL and PLA were most resistant to mechanical damage associated with packing in delivery devices and making it possible to keep high-molecular-weight cargo. Low-molecular-weight methylprednisolone sodium succinate is poorly retained in PCL- and PLGA-based microchambers after immersion in deionized water (only 9.5% and 15.7% are left, respectively). In comparison, PLA-based microchambers retain 96.3% after the same procedure. In vivo studies on rabbits have shown that effective granulation tissue suppression is achieved when PLA and PLGA are used for coatings. PLGA-based microchamber coating almost completely degrades in 10 days in the trachea, while PLA-based microchamber films partially preserve their structure. The PCL-based film coating is most stable over time, which probably causes blocking the outflow of fluid from the tracheal mucosa and the aggravation of the inflammatory process against the background of low drug concentration. Combination and variability of polymers in the fabrication of films with microchambers to retain therapeutic compounds are suggested as a novel type of drug-eluting coating.
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Affiliation(s)
- Olga A. Sindeeva
- Skolkovo Innovation Center, Skolkovo Institute of Science and Technology, 3 Nobel Str., 143005 Moscow, Russia
- Correspondence: (O.A.S.); (G.B.S.)
| | - Ekaterina S. Prikhozhdenko
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (E.A.M.); (O.A.I)
| | - Igor Schurov
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Nikolay Sedykh
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Sergey Goriainov
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Arfenya Karamyan
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Ekaterina A. Mordovina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (E.A.M.); (O.A.I)
| | - Olga A. Inozemtseva
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia; (E.S.P.); (E.A.M.); (O.A.I)
| | - Valeriya Kudryavtseva
- Nanoforce Ltd., School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
| | - Leonid E. Shchesnyak
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Rimma A. Abramovich
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Sergey Mikhajlov
- Innovative Engineering Technologies Institute, Peoples Friendship University of Russia (RUDN University), 6 Mikluho-Maklaya Str., 117198 Moscow, Russia; (I.S.); (N.S.); (S.G.); (A.K.); (L.E.S.); (R.A.A.); (S.M.)
| | - Gleb B. Sukhorukov
- Nanoforce Ltd., School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK;
- Correspondence: (O.A.S.); (G.B.S.)
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11
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Kopach O, Esteras N, Wray S, Abramov AY, Rusakov DA. Genetically engineered MAPT 10+16 mutation causes pathophysiological excitability of human iPSC-derived neurons related to 4R tau-induced dementia. Cell Death Dis 2021; 12:716. [PMID: 34274950 PMCID: PMC8286258 DOI: 10.1038/s41419-021-04007-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 01/02/2023]
Abstract
Human iPSC lines represent a powerful translational model of tauopathies. We have recently described a pathophysiological phenotype of neuronal excitability of human cells derived from the patients with familial frontotemporal dementia and parkinsonism (FTDP-17) caused by the MAPT 10+16 splice-site mutation. This mutation leads to the increased splicing of 4R tau isoforms. However, the role of different isoforms of tau protein in initiating neuronal dementia-related dysfunction, and the causality between the MAPT 10+16 mutation and altered neuronal activity have remained unclear. Here, we employed genetically engineered cells, in which the IVS10+16 mutation was introduced into healthy donor iPSCs to increase the expression of 4R tau isoform in exon 10, aiming to explore key physiological traits of iPSC-derived MAPT IVS10+16 neurons using patch-clamp electrophysiology and multiphoton fluorescent imaging techniques. We found that during late in vitro neurogenesis (from ~180 to 230 days) iPSC-derived cortical neurons of the control group (parental wild-type tau) exhibited membrane properties compatible with "mature" neurons. In contrast, MAPT IVS10+16 neurons displayed impaired excitability, as reflected by a depolarized resting membrane potential, an increased input resistance, and reduced voltage-gated Na+- and K+-channel-mediated currents. The mutation changed the channel properties of fast-inactivating Nav and decreased the Nav1.6 protein level. MAPT IVS10+16 neurons exhibited reduced firing accompanied by a changed action potential waveform and severely disturbed intracellular Ca2+ dynamics, both in the soma and dendrites, upon neuronal depolarization. These results unveil a causal link between the MAPT 10+16 mutation, hence overproduction of 4R tau, and a dysfunction of human cells, identifying a biophysical basis of changed neuronal activity in 4R tau-triggered dementia. Our study lends further support to using iPSC lines as a suitable platform for modelling tau-induced human neuropathology in vitro.
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Affiliation(s)
- Olga Kopach
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK.
| | - Noemí Esteras
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Selina Wray
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Andrey Y Abramov
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Dmitri A Rusakov
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
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12
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Esteras N, Kopach O, Maiolino M, Lariccia V, Amoroso S, Qamar S, Wray S, Rusakov DA, Jaganjac M, Abramov AY. Mitochondrial ROS control neuronal excitability and cell fate in frontotemporal dementia. Alzheimers Dement 2021; 18:318-338. [PMID: 34057756 DOI: 10.1002/alz.12394] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/15/2021] [Accepted: 05/06/2021] [Indexed: 12/29/2022]
Abstract
INTRODUCTION The second most common form of early-onset dementia-frontotemporal dementia (FTD)-is often characterized by the aggregation of the microtubule-associated protein tau. Here we studied the mechanism of tau-induced neuronal dysfunction in neurons with the FTD-related 10+16 MAPT mutation. METHODS Live imaging, electrophysiology, and redox proteomics were used in 10+16 induced pluripotent stem cell-derived neurons and a model of tau spreading in primary cultures. RESULTS Overproduction of mitochondrial reactive oxygen species (ROS) in 10+16 neurons alters the trafficking of specific glutamate receptor subunits via redox regulation. Increased surface expression of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) and N-methyl-D-aspartate (NMDA) receptors containing GluA1 and NR2B subunits leads to impaired glutamatergic signaling, calcium overload, and excitotoxicity. Mitochondrial antioxidants restore the altered response and prevent neuronal death. Importantly, extracellular 4R tau induces the same pathological response in healthy neurons, thus proposing a mechanism for disease propagation. DISCUSSION These results demonstrate mitochondrial ROS modulate glutamatergic signaling in FTD, and suggest a new therapeutic strategy.
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Affiliation(s)
- Noemí Esteras
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Olga Kopach
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
| | - Marta Maiolino
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche,", Ancona, Italy
| | - Vincenzo Lariccia
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche,", Ancona, Italy
| | - Salvatore Amoroso
- Department of Biomedical Sciences and Public Health, School of Medicine, University "Politecnica delle Marche,", Ancona, Italy
| | - Seema Qamar
- Department of Clinical Neurosciences, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Selina Wray
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Dmitri A Rusakov
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, UK
| | - Morana Jaganjac
- Qatar Analytics & BioResearch Lab, Anti-Doping Lab Qatar, Doha, Qatar.,Division of Molecular Medicine, Rudjer Boskovic Institute, Zagreb, Croatia
| | - Andrey Y Abramov
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
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13
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Xu X, Liu Y, Guo Z, Song XZ, Qi X, Dai Z, Tan Z. Synthesis of surfactant-modified ZIF-8 with controllable microstructures and their drug loading and sustained release behaviour. IET Nanobiotechnol 2020; 14:595-601. [PMID: 33010135 PMCID: PMC8676437 DOI: 10.1049/iet-nbt.2020.0076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 06/06/2020] [Accepted: 07/10/2020] [Indexed: 12/24/2022] Open
Abstract
Metal-organic frameworks (MOFs) as drug carriers have many advantages than traditional drug carriers and have received extensive attention from researchers. However, how to regulate the microstructure of MOFs to improve the efficiency of drug delivery and sustained release behaviour is still a big problem for the clinical application. Herein, the authors synthesise surfactant-modified ZIF-8 nanoparticles with different microstructures by using different types of surfactants to modify ZIF-8. The surfactant-modified ZIF-8 nanoparticles have the larger specific surface area and total micropore volumes than the original ZIF-8, which enables doxorubicin (DOX) to be more effectively loaded on the drug carriers and achieve controlled drug sustained release. Excellent degradation performance of ZIF-8 nanoparticles facilitates the metabolism of drug carriers. The formulation was evaluated for cytotoxicity, cellular uptake and intracellular location in the A549 human non-small-cell lung cancer cell line. ZIF-8/DOX nano drugs exhibit higher cytotoxicity towards cells in comparison with free DOX, suggesting the potential application in nano drugs to cancer chemotherapy.
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Affiliation(s)
- Xinyu Xu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Ye Liu
- School of Life Science and Medicine, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Zhaoming Guo
- School of Life Science and Medicine, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Xue-Zhi Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Xiuyu Qi
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Zideng Dai
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, Liaoning, People's Republic of China
| | - Zhenquan Tan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Panjin, Liaoning, People's Republic of China.
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14
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Sindeeva OA, Kopach O, Kurochkin MA, Sapelkin A, Gould DJ, Rusakov DA, Sukhorukov GB. Polylactic Acid-Based Patterned Matrixes for Site-Specific Delivery of Neuropeptides On-Demand: Functional NGF Effects on Human Neuronal Cells. Front Bioeng Biotechnol 2020; 8:497. [PMID: 32596218 PMCID: PMC7304324 DOI: 10.3389/fbioe.2020.00497] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/28/2020] [Indexed: 12/13/2022] Open
Abstract
The patterned microchamber arrays based on biocompatible polymers are a versatile cargo delivery system for drug storage and site-/time-specific drug release on demand. However, functional evidence of their action on nerve cells, in particular their potential for enabling patterned neuronal morphogenesis, remains unclear. Recently, we have established that the polylactic acid (PLA)-based microchamber arrays are biocompatible with human cells of neuronal phenotype and provide safe loading for hydrophilic substances of low molecular weight, with successive site-specific cargo release on-demand to trigger local cell responses. Here, we load the nerve growth factor (NGF) inside microchambers and grow N2A cells on the surface of patterned microchamber arrays. We find that the neurite outgrowth in local N2A cells can be preferentially directed towards opened microchambers (upon-specific NGF release). These observations suggest the PLA-microchambers can be an efficient drug delivery system for the site-specific delivery of neuropeptides on-demand, potentially suitable for the migratory or axonal guidance of human nerve cells.
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Affiliation(s)
- Olga A. Sindeeva
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, Moscow, Russia
- Remote Controlled Theranostic Systems Lab, Department of Nanotechnology, Educational and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov, Russia
| | - Olga Kopach
- UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Maxim A. Kurochkin
- Center for Photonics and Quantum Materials, Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Andrei Sapelkin
- School of Physics and Astronomy, Queen Mary University of London, London, United Kingdom
| | - David J. Gould
- Biochemical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
| | - Dmitri A. Rusakov
- UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Gleb B. Sukhorukov
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, Moscow, Russia
- School of Engineering and Material Science, Queen Mary University of London, London, United Kingdom
- Center of Biomedical Engineering, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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15
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Kurochkin MA, Sindeeva OA, Brodovskaya EP, Gai M, Frueh J, Su L, Sapelkin A, Tuchin VV, Sukhorukov GB. Laser-triggered drug release from polymeric 3-D micro-structured films via optical fibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 110:110664. [DOI: 10.1016/j.msec.2020.110664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 12/25/2019] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
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16
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Sindeeva OA, Verkhovskii RA, Abdurashitov AS, Voronin DV, Gusliakova OI, Kozlova AA, Mayorova OA, Ermakov AV, Lengert EV, Navolokin NA, Tuchin VV, Gorin DA, Sukhorukov GB, Bratashov DN. Effect of Systemic Polyelectrolyte Microcapsule Administration on the Blood Flow Dynamics of Vital Organs. ACS Biomater Sci Eng 2019; 6:389-397. [PMID: 33463221 DOI: 10.1021/acsbiomaterials.9b01669] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Polyelectrolyte microcapsules and other targeted drug delivery systems could substantially reduce the side effects of drug and overall toxicity. At the same time, the cardiovascular system is a unique transport avenue that can deliver drug carriers to any tissue and organ. However, one of the most important potential problems of drug carrier systemic administration in clinical practice is that the carriers might cause circulatory disorders, the development of pulmonary embolism, ischemia, and tissue necrosis due to the blockage of small capillaries. Thus, the presented work aims to find out the processes occurring in the bloodstream after the systemic injection of polyelectrolyte capsules that are 5 μm in size. It was shown that 1 min after injection, the number of circulating capsules decreases several times, and after 15 min less than 1% of the injected dose is registered in the blood. By this time, most capsules accumulate in the lungs, liver, and kidneys. However, magnetic field action could slightly increase the accumulation of capsules in the region-of-interest. For the first time, we have investigated the real-time blood flow changes in vital organs in vivo after intravenous injection of microcapsules using a laser speckle contrast imaging system. We have demonstrated that the organism can adapt to the emergence of drug carriers in the blood and their accumulation in the vessels of vital organs. Additionally, we have evaluated the safety of the intravenous administration of various doses of microcapsules.
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Affiliation(s)
- Olga A Sindeeva
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Peoples' Friendship University of Russia, 6 Mikluho-Maklaya St., Moscow 117198, Russia
| | - Roman A Verkhovskii
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya st., Saratov 410054, Russia
| | - Arkady S Abdurashitov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
| | - Denis V Voronin
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,National University of Oil and Gas (Gubkin University), 65 Leninsky Prospekt, Moscow 119991, Russia
| | - Olga I Gusliakova
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia
| | | | - Oksana A Mayorova
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia
| | - Aleksey V Ermakov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia
| | - Ekaterina V Lengert
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Ghent University, 653 Coupure Links, Ghent 9000, Belgium
| | - Nikita A Navolokin
- Saratov State Medical University, 112 Bolshaya Kazachia st., Saratov 410012, Russia
| | - Valery V Tuchin
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,National University of Oil and Gas (Gubkin University), 65 Leninsky Prospekt, Moscow 119991, Russia.,Institute of Precision Mechanics and Control, Russian Academy of Sciences, 24 Rabochaya St., Saratov 410028, Russia
| | - Dmitry A Gorin
- Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia
| | - Gleb B Sukhorukov
- Peoples' Friendship University of Russia, 6 Mikluho-Maklaya St., Moscow 117198, Russia.,Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia.,Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Daniil N Bratashov
- Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia.,Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow 141701, Russia
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17
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Zhong L, Gong X. Phase separation-induced superhydrophobic polylactic acid films. SOFT MATTER 2019; 15:9500-9506. [PMID: 31702749 DOI: 10.1039/c9sm01624d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Superhydrophobic films that are simple, inexpensive, corrosion-resistant and multifunctional are in high demand for industrial applications. We propose a simple and economical phase separation method for fabricating superhydrophobic films using polylactic acid (PLA), nano-SiO2 and a mixture of good and poor solvents to construct a rough surface with a nano/microstructured morphology. The phase separation-induced superhydrophobic PLA/SiO2 composite film with a porous network structure has a water contact angle greater than 164°. This method can be applied to a variety of surfaces or used in large-scale industrial production. The fabricated superhydrophobic films may be applied in biological fields because PLA is a good biodegradable material.
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Affiliation(s)
- Lingqi Zhong
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China.
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18
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Sousa MP, Arab-Tehrany E, Cleymand F, Mano JF. Surface Micro- and Nanoengineering: Applications of Layer-by-Layer Technology as a Versatile Tool to Control Cellular Behavior. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901228. [PMID: 31172666 DOI: 10.1002/smll.201901228] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/07/2019] [Indexed: 06/09/2023]
Abstract
Extracellular matrix (ECM) cues have been widely investigated for their impact on cellular behavior. Among mechanics, physics, chemistry, and topography, different ECM properties have been discovered as important parameters to modulate cell functions, activating mechanotransduction pathways that can influence gene expression, proliferation or even differentiation. Particularly, ECM topography has been gaining more and more interest based on the evidence that these physical cues can tailor cell behavior. Here, an overview of bottom-up and top-down approaches reported to produce materials capable of mimicking the ECM topography and being applied for biomedical purposes is provided. Moreover, the increasing motivation of using the layer-by-layer (LbL) technique to reproduce these topographical cues is highlighted. LbL assembly is a versatile methodology used to coat materials with a nanoscale fidelity to the geometry of the template or to produce multilayer thin films composed of polymers, proteins, colloids, or even cells. Different geometries, sizes, or shapes on surface topography can imply different behaviors: effects on the cell adhesion, proliferation, morphology, alignment, migration, gene expression, and even differentiation are considered. Finally, the importance of LbL assembly to produce defined topographical cues on materials is discussed, highlighting the potential of micro- and nanoengineered materials to modulate cell function and fate.
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Affiliation(s)
- Maria P Sousa
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Elmira Arab-Tehrany
- Laboratoire d'Ingénierie des Biomolécules, Nancy-Université, 2, Avenue de la Forêt de Haye, F 54504, Vandœuvre-Lès-Nancy Cedex, France
| | - Franck Cleymand
- Institut Jean Lamour, UMR 7198 CNRS-Université de Lorraine, Parc de Saurupt CS50840, 54011, Nancy Cedex, France
| | - João F Mano
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
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