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Gusliakova OI, Kurochkin MA, Barmin RA, Prikhozhdenko ES, Estifeeva TM, Rudakovskaya PG, Sindeeva OA, Galushka VV, Vavaev ES, Komlev AS, Lyubin EV, Fedyanin AA, Dey KK, Gorin DA. Magnetically navigated microbubbles coated with albumin/polyarginine and superparamagnetic iron oxide nanoparticles. BIOMATERIALS ADVANCES 2024; 158:213759. [PMID: 38227987 DOI: 10.1016/j.bioadv.2024.213759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/31/2023] [Accepted: 01/01/2024] [Indexed: 01/18/2024]
Abstract
While microbubbles (MB) are routinely used for ultrasound (US) imaging, magnetic MB are increasingly explored as they can be guided to specific sites of interest by applied magnetic field gradient. This requires the MB shell composition tuning to prolong MB stability and provide functionalization capabilities with magnetic nanoparticles. Hence, we developed air-filled MB stabilized by a protein-polymer complex of bovine serum albumin (BSA) and poly-L-arginine (pArg) of different molecular weights, showing that pArg of moderate molecular weight distribution (15-70 kDa) enabled MB with greater stability and acoustic response while preserving MB narrow diameters and the relative viability of THP-1 cells after 48 h of incubation. After MB functionalization with superparamagnetic iron oxide nanoparticles (SPION), magnetic moment values provided by single MB confirmed the sufficient SPION deposition onto BSA + pArg MB shells. During MB magnetic navigation in a blood vessel mimicking phantom with magnetic tweezers and in a Petri dish with adherent mouse renal carcinoma cell line, we demonstrated the effectiveness of magnetic MB localization in the desired area by magnetic field gradient. Magnetic MB co-localization with cells was further exploited for effective doxorubicin delivery with drug-loaded MB. Taken together, these findings open new avenues in control over albumin MB properties and magnetic navigation of SPION-loaded MB, which can envisage their applications in diagnostic and therapeutic needs.
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Affiliation(s)
- Olga I Gusliakova
- Science Medical Center, Saratov State University, Saratov 410012, Russia; Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Moscow 121205, Russia.
| | - Maxim A Kurochkin
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Roman A Barmin
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | | | - Tatyana M Estifeeva
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Polina G Rudakovskaya
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Olga A Sindeeva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Victor V Galushka
- Education and Research Institute of Nanostructures and Biosystems, Saratov State University, Saratov 410012, Russia
| | - Evgeny S Vavaev
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Aleksei S Komlev
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Evgeny V Lyubin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Andrey A Fedyanin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Krishna Kanti Dey
- Department of Physics, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382055, India
| | - Dmitry A Gorin
- Center for Photonic Science and Engineering, Skolkovo Institute of Science and Technology, Moscow 121205, Russia.
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Barmin RA, Moosavifar M, Zhang R, Rütten S, Thoröe-Boveleth S, Rama E, Ojha T, Kiessling F, Lammers T, Pallares RM. Hybrid ultrasound and photoacoustic contrast agent designs combining metal phthalocyanines and PBCA microbubbles. J Mater Chem B 2024; 12:2511-2522. [PMID: 38334758 PMCID: PMC10916536 DOI: 10.1039/d3tb02950f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/02/2024] [Indexed: 02/10/2024]
Abstract
Photoacoustic (PA) imaging is an emerging diagnostic technology that combines the penetration depth of ultrasound (US) imaging and the contrast resolution of optical imaging. Although PA imaging can visualize several endogenous chromophores to obtain clinically-relevant information, multiple applications require the administration of external contrast agents. Metal phthalocyanines have strong PA properties and chemical stability, but their extreme hydrophobicity requires their encapsulation in delivery systems for biomedical applications. Hence, we developed hybrid US/PA contrast agents by encapsulating metal phthalocyanines in poly(butyl cyanoacrylate) microbubbles (PBCA MB), which display acoustic response and ability to efficiently load hydrophobic drugs. Six different metal chromophores were loaded in PBCA MB, showing greater encapsulation efficiency with higher chromophore hydrophobicity. Notably, while the US response of the MB was unaffected by the loading of the chromophores, the PA characteristics varied greatly. Among the different formulations, MB loaded with zinc and cobalt naphthalocyanines showed the strongest PA contrast, as a result of high encapsulation efficiencies and tunable optical properties. The strong US and PA contrast signals of the formulations were preserved in biological environment, as demonstrated by in vitro imaging in serum and whole blood, and ex vivo imaging in deceased mice. Taken together, these findings highlight the advantages of combining highly hydrophobic PA contrast agents and polymeric MB for the development of contrast agents for hybrid US/PA imaging, where different types of information (structural, functional, or potentially molecular) can be acquired by combining both imaging modalities.
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Affiliation(s)
- Roman A Barmin
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - MirJavad Moosavifar
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Rui Zhang
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Stephan Rütten
- Electron Microscope Facility, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Sven Thoröe-Boveleth
- Institute for Occupational, Social and Environmental Medicine, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Elena Rama
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Tarun Ojha
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
| | - Roger M Pallares
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany.
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Rath WH, Göstl R, Herrmann A. Mechanochemical Activation of DNAzyme by Ultrasound. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306236. [PMID: 38308193 PMCID: PMC10885644 DOI: 10.1002/advs.202306236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/11/2024] [Indexed: 02/04/2024]
Abstract
Controlling the activity of DNAzymes by external triggers is an important task. Here a temporal control over DNAzyme activity through a mechanochemical pathway with the help of ultrasound (US) is demonstrated. The deactivation of the DNAzyme is achieved by hybridization to a complementary strand generated through rolling circle amplification (RCA), an enzymatic polymerization process. Due to the high molar mass of the resulting polynucleic acids, shear force can be applied on the RCA strand through inertial cavitation induced by US. This exerts mechanical force and leads to the cleavage of the base pairing between RCA strand and DNAzyme, resulting in the recovery of DNAzyme activity. This is the first time that this release mechanism is applied for the activation of catalytic nucleic acids, and it has multiple advantages over other stimuli. US has higher penetration depth into tissues compared to light, and it offers a more specific stimulus than heat, which has also limited use in biological systems due to cell damage caused by hyperthermia. This approach is envisioned to improve the control over DNAzyme activity for the development of reliable and specific sensing applications.
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Affiliation(s)
- Wolfgang H. Rath
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
| | - Robert Göstl
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
| | - Andreas Herrmann
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
- DWI – Leibniz Institute for Interactive MaterialsForckenbeckstr. 5052056AachenGermany
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