1
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Terlikowska KM, Dobrzycka B, Terlikowski SJ. Modifications of Nanobubble Therapy for Cancer Treatment. Int J Mol Sci 2024; 25:7292. [PMID: 39000401 PMCID: PMC11242568 DOI: 10.3390/ijms25137292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/17/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
Cancer development is related to genetic mutations in primary cells, where 5-10% of all cancers are derived from acquired genetic defects, most of which are a consequence of the environment and lifestyle. As it turns out, over half of cancer deaths are due to the generation of drug resistance. The local delivery of chemotherapeutic drugs may reduce their toxicity by increasing their therapeutic dose at targeted sites and by decreasing the plasma levels of circulating drugs. Nanobubbles have attracted much attention as an effective drug distribution system due to their non-invasiveness and targetability. This review aims to present the characteristics of nanobubble systems and their efficacy within the biomedical field with special emphasis on cancer treatment. In vivo and in vitro studies on cancer confirm nanobubbles' ability and good blood capillary perfusion; however, there is a need to define their safety and side effects in clinical trials.
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Affiliation(s)
- Katarzyna M Terlikowska
- Department of Food Biotechnology, Medical University of Bialystok, Szpitalna 37 Street, 15-295 Bialystok, Poland
| | - Bozena Dobrzycka
- Department of Gynaecology and Practical Obstetrics, Medical University of Bialystok, M. Sklodowskiej-Curie 24A Street, 15-089 Bialystok, Poland
| | - Slawomir J Terlikowski
- Department of Obstetrics, Gynaecology and Maternity Care, Medical University of Bialystok, Szpitalna 37 Street, 15-295 Bialystok, Poland
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2
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Tran NLH, Lam TQ, Duong PVQ, Doan LH, Vu MP, Nguyen KHP, Nguyen KT. Review on the Significant Interactions between Ultrafine Gas Bubbles and Biological Systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:984-996. [PMID: 38153335 DOI: 10.1021/acs.langmuir.3c03223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Having sizes comparable with living cells and high abundance, ultrafine bubbles (UBs) are prone to inevitable interactions with different types of cells and facilitate alterations in physiological properties. The interactions of four typical cell types (e.g., bacterial, fungal, plant, and mammalian cells) with UBs have been studied over recent years. For bacterial cells, UBs have been utilized in creating the capillary force to tear down biofilms. The release of high amounts of heat, pressure, and free radicals during bubble rupture is also found to affect bacterial cell growth. Similarly, the bubble gas core identity plays an important role in the development of fungal cells. By the proposed mechanism of attachment of UBs on hydrophobin proteins in the fungal cell wall, oxygen and ozone gas-filled ultrafine bubbles can either promote or hinder the cell growth rate. On the other hand, reactive oxygen species (ROS) formation and mass transfer facilitation are two means of indirect interactions between UBs and plant cells. Likewise, the use of different gas cores in generating bubbles can produce different physical effects on these cells, for example, hydrogen gas for antioxidation against infections and oxygen for oxidation of toxic metal ions. For mammalian cells, the importance of investigating their interactions with UBs lies in the bubbles' action on cell viability as membrane poration for drug delivery can greatly affect cells' survival. UBs have been utilized and tested in forming the pores by different methods, ranging from bubble oscillation and microstream generation through acoustic cavitation to bubble implosion.
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Affiliation(s)
- Nguyen Le Hanh Tran
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Thien Quang Lam
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Phuong Vu Quynh Duong
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Linh Hai Doan
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Mai Phuong Vu
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Khang Huy Phuc Nguyen
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
| | - Khoi Tan Nguyen
- School of Biotechnology, International University, Vietnam National University, Ho Chi Minh City 700000, Vietnam
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3
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Koshiyama K, Nakata K. Effects of lipid saturation on bicelle to vesicle transition of a binary phospholipid mixture: a molecular dynamics simulation study. SOFT MATTER 2023; 19:7655-7662. [PMID: 37782209 DOI: 10.1039/d3sm00904a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Controlling the transition from lipid bicelles to vesicles is essential for producing engineered vesicles. We perform coarse-grained molecular dynamics (CGMD) simulations of unsaturated/saturated lipid mixtures to clarify the effects of lipid unsaturation on vesiculation at the molecular scale. The results demonstrate that vesiculation depends on the concentration of unsaturated lipids and the degree of unsaturation. The probability of vesiculation increases linearly with the apparent unsaturated lipid concentration at a low degree of unsaturation. Higher degrees of unsaturation lead to phase segregation within the binary bicelles, reducing the probability of vesiculation. A comparison between CGMD simulations and the conventional theory of vesiculation shows that the theoretical predictions of binary lipid systems must explicitly include phase segregation effects. Furthermore, simulations with biased lipid distributions reveal that vesiculation is facilitated by the preconcentration of unsaturated lipids in the core region of the bicelle but is then temporally limited as the unsaturated lipids move to the bicelle edges. These findings advance theoretical and experimental studies on binary lipid systems and promote the development of tailor-made vesicles.
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Affiliation(s)
- Kenichiro Koshiyama
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima, 770-8506, Japan.
| | - Kazuki Nakata
- Graduate School of Sciences and Technology for Innovation, Tokushima University, Tokushima 770-8506, Japan.
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4
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Dwiastuti R, Radifar M, Putri DCA, Riswanto FDO, Hariono M. In silico modeling and empirical study of 4- n-Butylresorcinol nanoliposome formulation. J Biomol Struct Dyn 2022; 40:10603-10613. [PMID: 34238124 DOI: 10.1080/07391102.2021.1946430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A study to incorporate in silico modeling with an empirical experiment has been carried out to formulate nanoliposome containing 4-n-butylresorcinol as the active ingredient. The in silico modeling was performed using molecular dynamics simulation followed by radius of gyration observation to provide insight into the mechanisms of 4-n-butylresorcinol stabilization by liposome due to their nano-size. The empirical experiment was conducted by formulating the nanoliposome using soy lecithin phospholipid formula as suggested by the in silico modeling followed by determining its particle size as well as its shape. From their incorporation, it was found that 3200 phospholipid molecules were selected in formulating nanoliposome containing 4-n-butylresorcinol. The results of the nanoliposomes size observation in the modeling of 3200 lipid molecules was 87.01 (± 0.59) nm, whereas the size from the empirical study was 87.57 (± 0.06) nm. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Rini Dwiastuti
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta, Indonesia
| | - Muhammad Radifar
- Medical Laboratory Technology, Guna Bangsa Institute of Health Science, Yogyakarta, Indonesia
| | - Dina Christin Ayuning Putri
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta, Indonesia
| | - Florentinus Dika Octa Riswanto
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta, Indonesia
| | - Maywan Hariono
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Sanata Dharma University, Yogyakarta, Indonesia
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5
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Ingram S, Salmon Y, Lintunen A, Hölttä T, Vesala T, Vehkamäki H. Dynamic Surface Tension Enhances the Stability of Nanobubbles in Xylem Sap. FRONTIERS IN PLANT SCIENCE 2021; 12:732701. [PMID: 34975934 PMCID: PMC8716698 DOI: 10.3389/fpls.2021.732701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/29/2021] [Indexed: 05/28/2023]
Abstract
Air seeded nanobubbles have recently been observed within tree sap under negative pressure. They are stabilized by an as yet unidentified process, although some embolize their vessels in extreme circumstances. Current literature suggests that a varying surface tension helps bubbles survive, but few direct measurements of this quantity have been made. Here, we present calculations of dynamic surface tension for two biologically relevant lipids using molecular dynamics simulations. We find that glycolipid monolayers resist expansion proportionally to the rate of expansion. Their surface tension increases with the tension applied, in a similar way to the viscosity of a non-Newtonian fluid. In contrast, a prototypical phospholipid was equally resistant to all applied tensions, suggesting that the fate of a given nanobubble is dependent on its surface composition. By incorporating our results into a Classical Nucleation Theory (CNT) framework, we predict nanobubble stability with respect to embolism. We find that the metastable radius of glycolipid coated nanobubbles is approximately 35 nm, and that embolism is in this case unlikely when the external pressure is less negative than -1.5 MPa.
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Affiliation(s)
- Stephen Ingram
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
| | - Yann Salmon
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
- Institute for Atmospheric and Earth System Research/Forest Sciences, University of Helsinki, Helsinki, Finland
| | - Anna Lintunen
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
- Institute for Atmospheric and Earth System Research/Forest Sciences, University of Helsinki, Helsinki, Finland
| | - Teemu Hölttä
- Institute for Atmospheric and Earth System Research/Forest Sciences, University of Helsinki, Helsinki, Finland
| | - Timo Vesala
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
- Institute for Atmospheric and Earth System Research/Forest Sciences, University of Helsinki, Helsinki, Finland
- Laboratory of Ecosystem-Atmospheric Interactions of Forest – Mire Complexes, Yugra State University, Khanty-Mansiysk, Russia
| | - Hanna Vehkamäki
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
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6
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Zahiri M, Taghavi S, Abnous K, Taghdisi SM, Ramezani M, Alibolandi M. Theranostic nanobubbles towards smart nanomedicines. J Control Release 2021; 339:164-194. [PMID: 34592384 DOI: 10.1016/j.jconrel.2021.09.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 01/04/2023]
Abstract
Targeted therapy and early accurate detection of malignant lesions are essential for the effectiveness of treatment and prognosis in cancer patients. The development of gaseous system as a versatile platform for the fabricated nanobubbles, has attracted much interest in improving the efficacy of ultrasound therapeutic, diagnostic, and theranostic platforms. Nano-sized bubble, as an ultrasound contrast agent, with spherical gas-filled structures exhibited contrast enhancement capability due to their inherent EPR effect. Additionally, nanobubbles exhibited good stability with extended retention time in the blood stream. The current review summarized various nanobubbles and discussed about the crucial parameters affecting the stability of ultrafine bubbles. Furthermore, therapeutic and theranostic gaseous systems for fighting against cancer were described.
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Affiliation(s)
- Mahsa Zahiri
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Student Research Committee, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sahar Taghavi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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7
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Sakla M, Breitinger U, Breitinger HG, Mansour S, Tammam SN. Delivery of trans-membrane proteins by liposomes; the effect of liposome size and formulation technique on the efficiency of protein delivery. Int J Pharm 2021; 606:120879. [PMID: 34265391 DOI: 10.1016/j.ijpharm.2021.120879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/29/2021] [Accepted: 07/09/2021] [Indexed: 01/06/2023]
Abstract
Channelopathies are disorders caused by reduced expression or impaired function of ion channels. Most current therapies rely on symptomatic treatment without addressing the underlying cause. We have recently established proof of principle for delivery of functional ion channel protein into the membrane of target cells using fusogenic liposomes incorporating glycine receptor (GlyR)-containing cell membrane fragments (CMF) that were formulated by thin film hydration. Here, the effect of liposome size and the formulation technique on the performance of the delivery vehicle was assessed. Three types of liposomes were prepared using lecithin and cholesterol, (i) small (SL), and (ii) large (LL) liposomes made by thin film hydration, and (iii) small liposomes prepared by vortex agitation (V-SL). All liposomes were evaluated for their ability to (i) incorporate GlyR-rich CMF, (ii) fuse with the cell membrane of target cells and (iii) deliver functional GlyR, as assessed by patch-clamp electrophysiology. SL prepared by thin film hydration offered the most effective delivery of glycine receptors that gave clear glycine-mediated currents in target cells. LL showed higher incorporation of CMF, but did not effectively fuse with the target cell membrane, while V-SL did not incorporate sufficient amounts of CMF. Additionally, SL showed minimalin vivotoxicity upon intrathecal injection in mice. Thus, liposome-mediated delivery of membrane proteins may be a promising therapeutic approach for the treatment of channelopathies.
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Affiliation(s)
- Monica Sakla
- Department of Pharmaceutical Technology, The German University in Cairo (GUC), Cairo, Egypt
| | - Ulrike Breitinger
- Department of Biochemistry, The German University in Cairo (GUC), Cairo, Egypt
| | | | - Samar Mansour
- Department of Pharmaceutical Technology, The German University in Cairo (GUC), Cairo, Egypt
| | - Salma N Tammam
- Department of Pharmaceutical Technology, The German University in Cairo (GUC), Cairo, Egypt.
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8
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Man VH, Li MS, Derreumaux P, Wang J, Nguyen PH. Molecular Mechanism of Ultrasound-Induced Structural Defects in Liposomes: A Nonequilibrium Molecular Dynamics Simulation Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7945-7954. [PMID: 34161100 DOI: 10.1021/acs.langmuir.1c00555] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The use of ultrasound in combination with liposomes is a promising approach to improve drug delivery. To achieve an optimal drug release rate, it is important to understand how ultrasound induces pathways on the liposome surface where drugs can be released from the liposome. To this end, we carry out large-scale ultrasound-induced molecular dynamics simulations for three single lipid component liposomes formed from the commonly used phospholipids: 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), 1,2-dipalmitoylphosphatidylcholine (DPPC), or phosphatidylcholine (POPC). The results show that ultrasound induces the detachment of two leaflets of the DOPC surface, suggesting that the drug release pathway may be through the low lipid packing areas on the stretched surface. In contrast, ultrasound induces pore formation on the surface of DPPC and DOPC, where drugs could escape from the liposomes. While the leaflet detachment and transient pore formation are the mechanisms of DOPC and DPPC, respectively, in both liquid-ordered and liquid-disordered phases, the leaflet detachment mechanism is switched to the transient pore formation mechanism on going from the liquid-ordered phase to the liquid-disordered phase in the POPC liposome. By adding 30% mol cholesterol, the leaflet detachment mechanism is observed in all liposomes. We found that the molecular origin that determines a mechanism is the competition between the intraleaflet and interleaflet interacting energy of lipids. The connection to experimental and theoretical modeling is discussed in some detail.
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Affiliation(s)
- Viet Hoang Man
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Mai Suan Li
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland
- Institute for Computational Science and Technology, SBI Building, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City, Vietnam
| | - Philippe Derreumaux
- CNRS, Université de Paris, UPR9080, Laboratoire de Biochimie Théorique, Paris, France, Institut de Biologie Physico-Chimique, Fondation Edmond de Rothschild, PSL Research University, Paris 75005, France
| | - Junmei Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Phuong H Nguyen
- CNRS, Université de Paris, UPR9080, Laboratoire de Biochimie Théorique, Paris, France, Institut de Biologie Physico-Chimique, Fondation Edmond de Rothschild, PSL Research University, Paris 75005, France
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9
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Zhang J, Mohsin A, Peng Y, Dai Y, Zhuang Y, Guo M, Zhao P. Sandwich-Type Near-Infrared Conjugated Polymer Nanoparticles for Revealing the Fate of Transplanted Human Umbilical Cord Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:3512-3520. [PMID: 33435676 DOI: 10.1021/acsami.0c13815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Near-infrared conjugated polymer nanoparticles (NIR-CPNs) have been widely used in in vivo imaging fields. However, most of them face the aggregation-induced fluorescence quenching (ACQ) dilemma and serious dye leakage behavior, which impedes the long-term monitoring of transplanted cells in vivo. In the present work, a novel strategy of sandwich-type encapsulation of the conjugated polymer interlayer in the crystalline SiO2 core + shell (SSiO2@SPFTBT@CSiO2) is developed, which works well to avoid the ACQ problem by homogeneously dispersing poly((9,9-dioctylfluorene-2,7-diyl)-alt-(4,7-di(thiophene-2-yl)-2,1,3-benzothiadiazole)-5',5″-diyl) (PFTBT) and suppressing intermolecular π-π stacking. Furthermore, the unparalleled nanostructure efficiently stabilizes nanoparticles and successfully achieves long-term biocompatibility without interfering the biological characteristics of stem cells, indicating the potential of SSiO2@SPFTBT@CSiO2 in cell labeling. In addition, the fate of human umbilical cord mesenchymal stem cells (hucMSCs) in a mouse model with acute liver injury was disclosed. We found that the hucMSCs mainly migrated from the lungs to the injured liver and most transplanted hucMSCs were cleared up by the liver at 8 days post-injection. Revelation of the shuttle process and period will benefit in improving the clinical efficacy of hucMSCs, and the sandwich-type encapsulation strategy could also open a new avenue to obtain bright and robust NIR-CPNs for long-term fluorescence imaging.
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Affiliation(s)
- Junhong Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Ali Mohsin
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yan Peng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yichen Dai
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yingping Zhuang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Meijin Guo
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Peng Zhao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, P. R. China
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10
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Chan C, Du S, Dong Y, Cheng X. Computational and Experimental Approaches to Investigate Lipid Nanoparticles as Drug and Gene Delivery Systems. Curr Top Med Chem 2021; 21:92-114. [PMID: 33243123 PMCID: PMC8191596 DOI: 10.2174/1568026620666201126162945] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 02/06/2023]
Abstract
Lipid nanoparticles (LNPs) have been widely applied in drug and gene delivery. More than twenty years ago, DoxilTM was the first LNPs-based drug approved by the US Food and Drug Administration (FDA). Since then, with decades of research and development, more and more LNP-based therapeutics have been used to treat diverse diseases, which often offer the benefits of reduced toxicity and/or enhanced efficacy compared to the active ingredients alone. Here, we provide a review of recent advances in the development of efficient and robust LNPs for drug/gene delivery. We emphasize the importance of rationally combining experimental and computational approaches, especially those providing multiscale structural and functional information of LNPs, to the design of novel and powerful LNP-based delivery systems.
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Affiliation(s)
- Chun Chan
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Shi Du
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
| | - Yizhou Dong
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Department of Biomedical Engineering; The Center for Clinical and Translational Science; The Comprehensive Cancer Center; Dorothy M. Davis Heart & Lung Research Institute; Department of Radiation Oncology, The Ohio State University, Columbus, OH 43210, USA
| | - Xiaolin Cheng
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA
- Biophysics Graduate Program, Translational Data Analytics Institute, The Ohio State University, Columbus, OH 43210, USA
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11
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Ugarte La Torre D, Takada S. Coarse-grained implicit solvent lipid force field with a compatible resolution to the Cα protein representation. J Chem Phys 2020; 153:205101. [PMID: 33261497 DOI: 10.1063/5.0026342] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Biological membranes have been prominent targets for coarse-grained (CG) molecular dynamics simulations. While minimal CG lipid models with three beads per lipid and quantitative CG lipid models with >10 beads per lipid have been well studied, in between them, CG lipid models with a compatible resolution to residue-level CG protein models are much less developed. Here, we extended a previously developed three-bead lipid model into a five-bead model and parameterized it for two phospholipids, POPC (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine) and DPPC (1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine). The developed model, iSoLF, reproduced the area per lipid, hydrophobic thickness, and phase behaviors of the target phospholipid bilayer membranes at the physiological temperature. The model POPC and DPPC membranes were in liquid and gel phases, respectively, in accordance with experiments. We further examined the spontaneous formation of a membrane bilayer, the temperature dependence of physical properties, the vesicle dynamics, and the POPC/DPPC two-component membrane dynamics of the CG lipid model, showing some promise. Once combined with standard Cα protein models, the iSoLF model will be a powerful tool to simulate large biological membrane systems made of lipids and proteins.
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Affiliation(s)
- Diego Ugarte La Torre
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
| | - Shoji Takada
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, Japan
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12
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Liu P, Lu Y, Shi P. A molecular dynamics study of the atomic-level surface structural phase diagram for the existence form of nanobubbles and its influence in a dynamic system. PARTICULATE SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1080/02726351.2019.1697977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Peng Liu
- Key Laboratory of Metallurgical Equipment and Control, Wuhan University of Science and Technology, Wuhan, China
- Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China
| | - Yan Lu
- Key Laboratory of Metallurgical Equipment and Control, Wuhan University of Science and Technology, Wuhan, China
- Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China
| | - Pengcheng Shi
- Key Laboratory of Metallurgical Equipment and Control, Wuhan University of Science and Technology, Wuhan, China
- Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan, China
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13
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Shang M, Wang K, Guo L, Duan S, Lu Z, Li J. Development of novel ST68/PLA-PEG stabilized ultrasound nanobubbles for potential tumor imaging and theranostic. ULTRASONICS 2019; 99:105947. [PMID: 31284166 DOI: 10.1016/j.ultras.2019.105947] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/07/2019] [Accepted: 06/19/2019] [Indexed: 05/24/2023]
Abstract
Nanobubbles (NBs) have received wide attention as theranostic agents and been extensively explored in various applications, especially in cancer. The aim of this study was to develop a novel kind of NBs which possess high echogenicity and good stability. This novel ultrasonic nanobubbles (ST68/PLA-PEG NBs) consist of perfluoropropane gas stabilized by Span 60 and Tween 80 (ST68) surfactant and synthesized PLA-PEG-NH2 block copolymers, and were prepared through the methods of mechanical shaking and low-speed centrifugation. A series of experiments were carried out to evaluate the physicochemical properties, echogenicity and cytotoxicity of this novel NBs. According to the amount ratio of copolymers to surfactant, the NBs were divided into 5 groups (0%, 5%, 10%, 15% and 20%). Group "10%" were the optimum NBs, with a size of 675.6 nm, polydispersity index of 0.39. Moreover, these NBs gave a maximum contrast intensity of 31.0 ± 0.2 dB over baseline and little loss of contrast signal after 10 min. In conclusion, this novel kind of ST68/PLA-PEG NBs which exhibited a high echogenicity and good stability were successfully prepared, and they may offer a potential strategy for drug delivery and tumor-targeted theranostic.
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Affiliation(s)
- Mengmeng Shang
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Kai Wang
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Lu Guo
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Sujuan Duan
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Zaijun Lu
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jie Li
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, China.
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14
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Khan MS, Hwang J, Lee K, Choi Y, Seo Y, Jeon H, Hong JW, Choi J. Anti-Tumor Drug-Loaded Oxygen Nanobubbles for the Degradation of HIF-1α and the Upregulation of Reactive Oxygen Species in Tumor Cells. Cancers (Basel) 2019; 11:cancers11101464. [PMID: 31569523 PMCID: PMC6826834 DOI: 10.3390/cancers11101464] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 09/17/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022] Open
Abstract
Hypoxia is a key concern during the treatment of tumors, and hypoxia-inducible factor 1 alpha (HIF-1α) has been associated with increased tumor resistance to therapeutic modalities. In this study, doxorubicin-loaded oxygen nanobubbles (Dox/ONBs) were synthesized, and the effectiveness of drug delivery to MDA-MB-231 breast cancer and HeLa cells was evaluated. Dox/ONBs were characterized using optical and fluorescence microscopy, and size measurements were performed through nanoparticle tracking analysis (NTA). The working mechanism of Dox was evaluated using reactive oxygen species (ROS) assays, and cellular penetration was assessed with confocal microscopy. Hypoxic conditions were established to assess the effect of Dox/ONBs under hypoxic conditions compared with normoxic conditions. Our results indicate that Dox/ONBs are effective for drug delivery, enhancing oxygen levels, and ROS generation in tumor-derived cell lines.
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Affiliation(s)
- Muhammad Saad Khan
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Jangsun Hwang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Kyungwoo Lee
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 02792, Korea.
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Youngmin Seo
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 02792, Korea.
| | - Hojeong Jeon
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul 02792, Korea.
| | - Jong Wook Hong
- Department of Bionano Technology, Hanyang University, Seoul 426-791, Korea.
- Department of Bionano Engineering, Hanyang University, Ansan 426-791, Korea.
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
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15
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Man VH, Li MS, Wang J, Derreumaux P, Nguyen PH. Interaction mechanism between the focused ultrasound and lipid membrane at the molecular level. J Chem Phys 2019; 150:215101. [PMID: 31176320 PMCID: PMC7043851 DOI: 10.1063/1.5099008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 05/13/2019] [Indexed: 12/15/2022] Open
Abstract
Focused ultrasound (FUS) has a wide range of medical applications. Nowadays, the diagnostic and therapeutic ultrasound procedures are routinely used; effects of ultrasound on biological systems at the molecular level are, however, not fully understood. Experimental results on the interaction of the cell membrane, a simplest but important system component, with ultrasound are controversial. Molecular dynamics (MD) simulations could provide valuable insights, but there is no single study on the mechanism of the FUS induced structural changes in cell membranes. With this in mind, we develop a simple method to include FUS into a standard MD simulation. Adopting the 1,2-dioleoyl-sn-glycero-3-phosphocholine lipid membrane as a representative model described by the MARTINI coarse-grained force field, and using experimental values of the ultrasound frequency and intensity, we show that the heat and bubble cavitation are not the primary direct mechanisms that cause structural changes in the membrane. The spatial pressure gradients between the focused and free regions and between the parallel and perpendicular directions to the membrane are the origin of the mechanism. These gradients force lipids to move out of the focused region, forming a lipid flow along the membrane diagonal. Lipids in the free region move in the opposite direction due to the conservation of the total momentum. These opposite motions create wrinkles along the membrane diagonal at low FUS intensities and tear up the membrane at high FUS intensities. Once the membrane is torn up, it is not easy to reform. The implication of our findings in the FUS-induced drug delivery is discussed in some detail.
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Affiliation(s)
- Viet Hoang Man
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | | | - Junmei Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Philippe Derreumaux
- Laboratoire de Biochimie Théorique UPR 9080, CNRS, Université Denis Diderot, Sorbonne Paris Cité IBPC, 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Phuong H. Nguyen
- Laboratoire de Biochimie Théorique UPR 9080, CNRS, Université Denis Diderot, Sorbonne Paris Cité IBPC, 13 rue Pierre et Marie Curie, 75005 Paris, France
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16
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Koshiyama K, Taneo M, Shigematsu T, Wada S. Bicelle-to-Vesicle Transition of a Binary Phospholipid Mixture Guided by Controlled Local Lipid Compositions: A Molecular Dynamics Simulation Study. J Phys Chem B 2019; 123:3118-3123. [DOI: 10.1021/acs.jpcb.8b10682] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kenichiro Koshiyama
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8506, Japan
| | - Masaki Taneo
- Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
| | - Taiki Shigematsu
- Global Center for Medical Engineering and Informatics, Osaka University, 2-2 Yamadaoka, Suita 565-0871, Japan
| | - Shigeo Wada
- Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan
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17
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Khan MS, Hwang J, Lee K, Choi Y, Jang J, Kwon Y, Hong JW, Choi J. Surface Composition and Preparation Method for Oxygen Nanobubbles for Drug Delivery and Ultrasound Imaging Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E48. [PMID: 30609703 PMCID: PMC6358755 DOI: 10.3390/nano9010048] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/22/2018] [Accepted: 12/23/2018] [Indexed: 02/06/2023]
Abstract
Phospholipids have been widely investigated for the preparation of liposomes, and micro and nanobubbles. They comprise biocompatible and biodegradable molecules and offer simple preparation with a variety of functions in diagnostic and therapeutic applications. Phospholipids require emulsifiers and surfactants to assemble in the form of bubbles. These surfactants determine the size, zeta potential, and other characteristics of particles. Polyethylene glycol (PEG) and its various derivatives have been employed by researchers to synthesize micro and nanobubbles. The stability of phospholipid-shelled nanobubbles has been reported by various researchers owing to the reduction of surface tension by surfactants in the shell. Nanobubbles have been employed to deliver oxygen to tissues and hypoxic cells. In this study, we investigated the effects of different ratios of phospholipids to PEG on the size, distribution, and characterization of oxygen nanobubbles (ONBs). ONBs were synthesized using a sonication technique. We analyzed and compared the sizes, numbers of generated particles, and zeta potentials of different compositions of ONBs using dynamic light scattering and nanoparticle tracking analysis. Then, we employed these oxygen nanobubbles to enhance the cellular microenvironment and cell viability. ONBs were also investigated for ultrasound imaging.
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Affiliation(s)
- Muhammad Saad Khan
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Jangsun Hwang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Kyungwoo Lee
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Jaehee Jang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Yejin Kwon
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Jong Wook Hong
- Department of Bionano Technology, Hanyang University, Seoul, Korea.
- Department of Bionano Engineering, Hanyang University, Ansan, Korea.
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
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18
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Man VH, Truong PM, Li MS, Wang J, Van-Oanh NT, Derreumaux P, Nguyen PH. Molecular Mechanism of the Cell Membrane Pore Formation Induced by Bubble Stable Cavitation. J Phys Chem B 2018; 123:71-78. [DOI: 10.1021/acs.jpcb.8b09391] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Viet Hoang Man
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Phan Minh Truong
- Institute for Computational Science and Technology, SBI Building, Quang Trung Software City, Tan Chanh Hiep Ward, District 12, Ho Chi Minh City, Vietnam
| | - Mai Suan Li
- Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland
| | - Junmei Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, United States
| | - Nguyen-Thi Van-Oanh
- Laboratoire de Chimie Physique, CNRS, Université Paris Sud, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Philippe Derreumaux
- Laboratory of Theoretical Chemistry, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Phuong H. Nguyen
- Laboratoire de Biochimie Théorique, UPR 9080, CNRS, Université Denis Diderot, Sorbonne Paris Cité, IBPC, 13 rue Pierre et Marie Curie, 75005 Paris, France
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19
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Khan MS, Hwang J, Lee K, Choi Y, Kim K, Koo HJ, Hong JW, Choi J. Oxygen-Carrying Micro/Nanobubbles: Composition, Synthesis Techniques and Potential Prospects in Photo-Triggered Theranostics. Molecules 2018; 23:E2210. [PMID: 30200336 PMCID: PMC6225314 DOI: 10.3390/molecules23092210] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 08/27/2018] [Accepted: 08/30/2018] [Indexed: 12/19/2022] Open
Abstract
Microbubbles and nanobubbles (MNBs) can be prepared using various shells, such as phospholipids, polymers, proteins, and surfactants. MNBs contain gas cores due to which they are echogenic and can be used as contrast agents for ultrasonic and photoacoustic imaging. These bubbles can be engineered in various sizes as vehicles for gas and drug delivery applications with novel properties and flexible structures. Hypoxic areas in tumors develop owing to an imbalance of oxygen supply and demand. In tumors, hypoxic regions have shown more resistance to chemotherapy, radiotherapy, and photodynamic therapies. The efficacy of photodynamic therapy depends on the effective accumulation of photosensitizer drug in tumors and the availability of oxygen in the tumor to generate reactive oxygen species. MNBs have been shown to reverse hypoxic conditions, degradation of hypoxia inducible factor 1α protein, and increase tissue oxygen levels. This review summarizes the synthesis methods and shell compositions of micro/nanobubbles and methods deployed for oxygen delivery. Methods of functionalization of MNBs, their ability to deliver oxygen and drugs, incorporation of photosensitizers and potential application of photo-triggered theranostics, have also been discussed.
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Affiliation(s)
- Muhammad Saad Khan
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Jangsun Hwang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Kyungwoo Lee
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
| | - Kyobum Kim
- Division of Bioengineering, Incheon National University, Incheon 22012, Korea.
| | - Hyung-Jun Koo
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea.
| | - Jong Wook Hong
- Department of Bionano Technology, Hanyang University, Seoul 04763, Korea.
- Department of Bionano Engingeering, Hanyang University, Ansan 15588, Korea.
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea.
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20
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Khan MS, Hwang J, Seo Y, Shin K, Lee K, Park C, Choi Y, Hong JW, Choi J. Engineering oxygen nanobubbles for the effective reversal of hypoxia. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S318-S327. [PMID: 30032670 DOI: 10.1080/21691401.2018.1492420] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Hypoxia, which results from an inadequate supply of oxygen, is a major cause of concern in cancer therapy as it is associated with a reduction in the effectiveness of chemotherapy and radiotherapy in cancer treatment. Overexpression and stabilization of hypoxia-inducible factor 1α (HIF-1α) protein in tumours, due to hypoxia, results in poor prognosis and increased patient mortality. To increase oxygen tension in hypoxic areas, micro- and nanobubbles have been investigated by various researchers. In the present research, lipid-shelled oxygen nanobubbles (ONBs) were synthesized through a sonication method to reverse hypoxic conditions created in a custom-made hypoxic chamber. Release of oxygen gas from ONBs in deoxygenated water was evaluated by measuring dissolved oxygen. Hypoxic conditions were evaluated by performing in vitro experiments on MDA-MB231 breast cancer cells through the expression of HIF-1α and the fluorescence of image-iT™ hypoxia reagent. The results indicated the degradation of HIF-1α after the introduction of ONBs. We propose that ONBs are successful in reversing hypoxia, downregulating HIF-1α, and improving cellular conditions, leading to further medical applications.
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Affiliation(s)
- Muhammad Saad Khan
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
| | - Jangsun Hwang
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
| | - Youngmin Seo
- b Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology , Seoul , Republic of Korea
| | - Kyusoon Shin
- c Department of Nanobiotechnology, Graduate School , Hanyang University , Seoul , Republic of Korea
| | - Kyungwoo Lee
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
| | - Chanhwi Park
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
| | - Yonghyun Choi
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
| | - Jong Wook Hong
- c Department of Nanobiotechnology, Graduate School , Hanyang University , Seoul , Republic of Korea.,d Department of Bionano Engineering , Hanyang University , Ansan , Republic of Korea
| | - Jonghoon Choi
- a School of Integrative Engineering , Chung-Ang University , Seoul , Republic of Korea
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21
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Zhou X, Wu K, Long R, Kankala RK, Wang S, Liu Y. Preparation of a MVL-Ca-Alg/CS MEMs system with add-on effect for type 2 diabetes treatment. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1383249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xia Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen, China
| | - Kejing Wu
- College of Chemical Engineering, Huaqiao University, Xiamen, China
| | - Ruimin Long
- College of Chemical Engineering, Huaqiao University, Xiamen, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, China
| | - Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, China
| | - Shibin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, China
| | - Yuangang Liu
- College of Chemical Engineering, Huaqiao University, Xiamen, China
- Fujian Provincial Key Laboratory of Biochemical Technology, Huaqiao University, Xiamen, China
- Institute of Pharmaceutical Engineering, Huaqiao University, Xiamen, China
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22
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Cryo-EM Visualization of Lipid and Polymer-Stabilized Perfluorocarbon Gas Nanobubbles - A Step Towards Nanobubble Mediated Drug Delivery. Sci Rep 2017; 7:13517. [PMID: 29044154 PMCID: PMC5647366 DOI: 10.1038/s41598-017-13741-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/27/2017] [Indexed: 02/02/2023] Open
Abstract
Gas microbubbles stabilized with lipids, surfactants, proteins and/or polymers are widely used clinically as ultrasound contrast agents. Because of their large 1-10 µm size, applications of microbubbles are confined to the blood vessels. Accordingly, there is much interest in generating nanoscale echogenic bubbles (nanobubbles), which can enable new uses of ultrasound contrast agents in molecular imaging and drug delivery, particularly for cancer applications. While the interactions of microbubbles with ultrasound have been widely investigated, little is known about the activity of nanobubbles under ultrasound exposure. In this work, we demonstrate that cryo-electron microscopy (cryo-EM) can be used to image nanoscale lipid and polymer-stabilized perfluorocarbon gas bubbles before and after their destruction with high intensity ultrasound. In addition, cryo-EM can be used to observe electron-beam induced dissipation of nanobubble encapsulated perfluorocarbon gas.
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23
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Wei J, Zhang X, Song F. Deformation of Surface Nanobubbles Induced by Substrate Hydrophobicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13003-13008. [PMID: 27951686 DOI: 10.1021/acs.langmuir.6b03236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Recent experimental measurements have shown that there exists a population of nanobubbles with different curvature radii, whereas both computer simulations and theoretical analysis indicated that the curvature radii of different nanobubbles should be the same at a given supersaturation. To resolve such inconsistency, we perform molecular dynamics simulations on surface nanobubbles that are stabilized by heterogeneous substrates either in the geometrical heterogeneity model (GHM) or in the chemical heterogeneity model (CHM) and propose that the inconsistency could be ascribed to the substrate-induced nanobubble deformation. We find that, as expected from theory and computer simulation, for either the GHM or the CHM, there exists a universal upper limit of contact angle for the nanobubbles, which is determined by the degree of supersaturation alone. By analyzing the evolution of the shape of nanobubbles as a function of substrate hydrophobicity that is controlled here by the liquid-solid interaction, two different origins of nanobubble deformation are identified. For substrates in the GHM, where the contact line is pinned by surface roughness, variation in the liquid-solid interaction changes only the location of the contact line and the measured contact angle, without causing a change in the nanobubble curvature. For substrates in the CHM, however, the liquid-solid interaction exerted by the bottom substrate can deform the vapor-liquid interface, resulting in variations in both the curvature of the vapor-liquid interface and the contact angle.
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Affiliation(s)
- Jiachen Wei
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences , 15 Beisihuanxi Road, Beijing 100190, China
- School of Engineering Science, University of Chinese Academy of Sciences , Beijing 100049, China
| | - Xianren Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, China
| | - Fan Song
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences , 15 Beisihuanxi Road, Beijing 100190, China
- School of Engineering Science, University of Chinese Academy of Sciences , Beijing 100049, China
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