1
|
Hatami M, Nevozhay D, Singh M, Schill A, Boerner P, Aglyamov S, Sokolov K, Larin KV. Nanobomb optical coherence elastography in multilayered phantoms. BIOMEDICAL OPTICS EXPRESS 2023; 14:5670-5681. [PMID: 38021113 PMCID: PMC10659790 DOI: 10.1364/boe.502576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023]
Abstract
Many tissues are composed of layered structures, and a better understanding of the changes in the layered tissue biomechanics can enable advanced guidance and monitoring of therapy. The advent of elastography using longitudinally propagating shear waves (LSWs) has created the prospect of a high-resolution assessment of depth-dependent tissue elasticity. Laser activation of liquid-to-gas phase transition of dye-loaded perfluorocarbon (PFC) nanodroplets (a.k.a., nanobombs) can produce highly localized LSWs. This study aims to leverage the potential of photoactivation of nanobombs to incudce LSWs with very high-frequency content in wave-based optical coherence elastography (OCE) to estimate the elasticity gradient with high resolution. In this work, we used multilayered tissue-mimicking phantoms to demonstrate that highly localized nanobomb (NB)-induced LSWs can discriminate depth-wise tissue elasticity gradients. The results show that the NB-induced LSWs rapidly change speed when transitioning between layers with different mechanical properties, resulting in an elasticity resolution of ∼65 µm. These results show promise for characterizing the elasticity of multilayer tissue with a fine resolution.
Collapse
Affiliation(s)
- Maryam Hatami
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Dmitry Nevozhay
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Manmohan Singh
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Alexander Schill
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Paul Boerner
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Salavat Aglyamov
- Department of Mechanical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Konstantin Sokolov
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
- Department of Bioengineering, Rice University, Houston, Texas 77030, USA
| | - Kirill V Larin
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| |
Collapse
|
2
|
Kim C, Nevozhay D, Aburto RR, Pehere A, Pang L, Dillard R, Wang Z, Smith C, Mathieu KB, Zhang M, Hazle JD, Bast RC, Sokolov K. One-Pot, One-Step Synthesis of Drug-Loaded Magnetic Multimicelle Aggregates. Bioconjug Chem 2022; 33:969-981. [PMID: 35522527 PMCID: PMC9121875 DOI: 10.1021/acs.bioconjchem.2c00167] [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: 04/04/2022] [Revised: 04/15/2022] [Indexed: 11/30/2022]
Abstract
Lipid-based formulations provide a nanotechnology platform that is widely used in a variety of biomedical applications because it has several advantageous properties including biocompatibility, reduced toxicity, relative ease of surface modifications, and the possibility for efficient loading of drugs, biologics, and nanoparticles. A combination of lipid-based formulations with magnetic nanoparticles such as iron oxide was shown to be highly advantageous in a growing number of applications including magnet-mediated drug delivery and image-guided therapy. Currently, lipid-based formulations are prepared by multistep protocols. Simplification of the current multistep procedures can lead to a number of important technological advantages including significantly decreased processing time, higher reaction yield, better product reproducibility, and improved quality. Here, we introduce a one-pot, single-step synthesis of drug-loaded magnetic multimicelle aggregates (MaMAs), which is based on controlled flow infusion of an iron oxide nanoparticle/lipid mixture into an aqueous drug solution under ultrasonication. Furthermore, we prepared molecular-targeted MaMAs by directional antibody conjugation through an Fc moiety using Cu-free click chemistry. Fluorescence imaging and quantification confirmed that antibody-conjugated MaMAs showed high cell-specific targeting that was enhanced by magnetic delivery.
Collapse
Affiliation(s)
- Chang
Soo Kim
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Dmitry Nevozhay
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Rebeca Romero Aburto
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Ashok Pehere
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Lan Pang
- Department
of Experimental Therapeutics, The University
of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Rebecca Dillard
- Center
for Molecular Microscopy, Frederick National Laboratory for Cancer
Research, Center for Cancer Research, National
Cancer Institute, NIH, Frederick, Maryland 21701, United States
| | - Ziqiu Wang
- Center
for Molecular Microscopy, Frederick National Laboratory for Cancer
Research, Center for Cancer Research, National
Cancer Institute, NIH, Frederick, Maryland 21701, United States
| | - Clayton Smith
- Center
for Molecular Microscopy, Frederick National Laboratory for Cancer
Research, Center for Cancer Research, National
Cancer Institute, NIH, Frederick, Maryland 21701, United States
| | - Kelsey Boitnott Mathieu
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Marie Zhang
- Imagion
Biosystems, Inc., San Diego, California 92121, United States
| | - John D. Hazle
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Robert C. Bast
- Department
of Experimental Therapeutics, The University
of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Konstantin Sokolov
- Department
of Imaging Physics, The University of Texas
MD Anderson Cancer Center, Houston, Texas 77030, United States
- Department
of Bioengineering, Rice University, Houston, Texas 77005, United States
- Department
of Biomedical Engineering, The University
of Texas at Austin, Austin, Texas 78712, United States
| |
Collapse
|
3
|
Mitcham TM, Nevozhay D, Chen Y, Nguyen LD, Pinton GF, Lai SY, Sokolov KV, Bouchard RR. Effect of Perfluorocarbon Composition on Activation of Phase-Changing Ultrasound Contrast Agents. Med Phys 2022; 49:2212-2219. [PMID: 35195908 PMCID: PMC9041204 DOI: 10.1002/mp.15564] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 11/29/2022] Open
Abstract
Background While microbubble contrast agents (MCAs) are commonly used in ultrasound (US), they are inherently limited to vascular targets due to their size. Alternatively, phase‐changing nanodroplet contrast agents (PNCAs) can be delivered as nanoscale agents (i.e., small enough to extravasate), but when exposed to a US field of sufficient mechanical index (MI), they convert to MCAs, which can be visualized with high contrast using nonlinear US. Purpose To investigate the effect of perfluorocarbon (PFC) core composition and presence of cholesterol in particle coatings on stability and image contrast generated from acoustic activation of PNCAs using high‐frequency US suitable for clinical imaging. Methods PNCAs with varied core compositions (i.e., mixtures of perfluoropentane [C5] and/or perfluorohexane [C6]) and two coating formulations (i.e., with and without cholesterol) were characterized and investigated for thermal/temporal stability and postactivation, nonlinear US contrast in phantom and in vivo environments. Through hydrophone measurements and nonlinear numerical modeling, MI was estimated for pulse sequences used for PNCA activation. Results All PNCA compositions were characterized to have similar diameters (249–267 nm) and polydispersity (0.151–0.185) following fabrication. While PNCAs with majority C5 core composition showed higher levels of spontaneous signal (i.e., not due to US activation) in phantoms than C6‐majority PNCAs, all compositions were stable during imaging experiments. When activating PNCAs with a 12.3‐MHz US pulse (MI = 1.1), C6‐core particles with cholesterol‐free coatings (i.e., CF‐C6‐100 particles) generated a median contrast of 3.1, which was significantly higher (p < 0.001) than other formulations. Further, CF‐C6‐100 particles were activated in a murine model, generating US contrast ≥3.4. Conclusion C6‐core PNCAs can provide high‐contrast US imaging with minimal nonspecific activation in phantom and in vivo environments.
Collapse
Affiliation(s)
- Trevor M Mitcham
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Dmitry Nevozhay
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yunyun Chen
- Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Linh D Nguyen
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gianmarco F Pinton
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, USA
| | - Stephen Y Lai
- MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.,Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Konstantin V Sokolov
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.,Department of Bioengineering, Rice University, Houston, TX, USA.,Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Richard R Bouchard
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| |
Collapse
|
4
|
Murphy KJ, Reed DA, Trpceski M, Herrmann D, Timpson P. Quantifying and visualising the nuances of cellular dynamics in vivo using intravital imaging. Curr Opin Cell Biol 2021; 72:41-53. [PMID: 34091131 DOI: 10.1016/j.ceb.2021.04.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 12/14/2022]
Abstract
Intravital imaging is a powerful technology used to quantify and track dynamic changes in live cells and tissues within an intact environment. The ability to watch cell biology in real-time 'as it happens' has provided novel insight into tissue homeostasis, as well as disease initiation, progression and response to treatment. In this minireview, we highlight recent advances in the field of intravital microscopy, touching upon advances in awake versus anaesthesia-based approaches, as well as the integration of biosensors into intravital imaging. We also discuss current challenges that, in our opinion, need to be overcome to further advance the field of intravital imaging at the single-cell, subcellular and molecular resolution to reveal nuances of cell behaviour that can be targeted in complex disease settings.
Collapse
Affiliation(s)
- Kendelle J Murphy
- Garvan Institute of Medical Research & The Kinghorn Cancer Centre, Cancer Theme, Sydney, NSW, 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Daniel A Reed
- Garvan Institute of Medical Research & The Kinghorn Cancer Centre, Cancer Theme, Sydney, NSW, 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Michael Trpceski
- Garvan Institute of Medical Research & The Kinghorn Cancer Centre, Cancer Theme, Sydney, NSW, 2010, Australia
| | - David Herrmann
- Garvan Institute of Medical Research & The Kinghorn Cancer Centre, Cancer Theme, Sydney, NSW, 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2010, Australia.
| | - Paul Timpson
- Garvan Institute of Medical Research & The Kinghorn Cancer Centre, Cancer Theme, Sydney, NSW, 2010, Australia; St Vincent's Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, NSW, 2010, Australia.
| |
Collapse
|
5
|
Boerner P, Nevozhay D, Hatamimoslehabadi M, Chawla HS, Zvietcovich F, Aglyamov S, Larin KV, Sokolov KV. Repetitive optical coherence elastography measurements with blinking nanobombs. BIOMEDICAL OPTICS EXPRESS 2020; 11:6659-6673. [PMID: 33282515 PMCID: PMC7687956 DOI: 10.1364/boe.401734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/19/2020] [Accepted: 10/06/2020] [Indexed: 05/04/2023]
Abstract
Excitation of dye-loaded perfluorocarbon nanoparticles (nanobombs) can generate highly localized axially propagating longitudinal shear waves (LSW) that can be used to quantify tissue mechanical properties without transversal scanning of the imaging beam. In this study, we used repetitive excitations of dodecafluoropentane (C5) and tetradecafluorohexane (C6) nanobombs by a nanosecond-pulsed laser to produce multiple LSWs from a single spot in a phantom. A 1.5 MHz Fourier-domain mode-locked laser in combination with a phase correction algorithm was used to perform elastography. Multiple nanobomb activations were also monitored by detecting photoacoustic signals. Our results demonstrate that C6 nanobombs can be used for repetitive generation of LSW from a single spot for the purpose of material elasticity assessment. This study opens new avenues for continuous quantification of tissue mechanical properties using single delivery of the nanoparticles.
Collapse
Affiliation(s)
- Paul Boerner
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
- Equal contribution
| | - Dmitry Nevozhay
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
- Equal contribution
| | | | | | - Fernando Zvietcovich
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Salavat Aglyamov
- Department of Mechanical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Kirill V Larin
- Department of Biomedical Engineering, University of Houston, Houston, Texas 77204, USA
| | - Konstantin V Sokolov
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
- Department of Bioengineering, Rice University, Houston, Texas 77030, USA
- Department of Biomedical Engineering, The University of Texas at Austin, 107 W Dean Keeton Street, Austin, Texas 78712, USA
| |
Collapse
|