1
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Oeffinger BE, Stanczak M, Lepore AC, Eisenbrey JR, Wheatley MA. Determining Ultrasound Parameters for Bursting Polymer Microbubbles for Future Use in Spinal Cord Injury. ULTRASOUND IN MEDICINE & BIOLOGY 2024; 50:888-897. [PMID: 38519360 DOI: 10.1016/j.ultrasmedbio.2024.02.014] [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: 11/15/2023] [Revised: 02/14/2024] [Accepted: 02/22/2024] [Indexed: 03/24/2024]
Abstract
OBJECTIVE We believe our poly(lactic acid) (PLA) microbubbles are well suited for therapeutic delivery to spinal cord injury (SCI) using ultrasound-triggered bursting. We investigated the feasibility of clinical ultrasound bursting in situ, the optimal bursting parameters in vitro and the loading and release of a model bio-active DNA. METHODS Microbubbles were tested using clinical ultrasound in a rat cadaver SCI model. Burst pressure thresholds were determined using the change in enhancement after ultrasound exposure. Resonance frequency, acoustic enhancement, sizing and morphology were evaluated by comparing two microbubble porogens, ammonium carbonate and ammonium carbamate. Oligonucleotides were loaded into the shell and released using the found optimized ultrasound bursting parameters. RESULTS In situ imaging and bursting were successful. In vitro bursting thresholds using frequencies 1, 2.25 and 5 MHz were identified between peak negative pressures 0.2 and 0.5 MPa, believed to be safe for spinal cord. The pressure threshold decreased with decreasing frequencies. PLA bursting was optimized near the resonance frequency of 2.5 to 3.0 MHz using 2.25 MHz and not at lower frequencies. PLA microbubbles, initially with a mean size of approximately 2 µm, remained in one piece, collapsed to between 0.5 and 1 µm and did not fragment. Significantly more oligonucleotide was released after ultrasound bursting of loaded microbubbles. Microbubble-sized debris was detected when using ammonium carbamate, leading to inaccurate microbubble concentration measurements. CONCLUSION PLA microbubbles made with ammonium carbonate and burst at appropriate parameters have the potential to safely improve intrathecal therapeutic delivery to SCI using targeted ultrasound.
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Affiliation(s)
- Brian E Oeffinger
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Maria Stanczak
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Angelo C Lepore
- Department of Neuroscience, Vickie and Jack Farber Institute for Neuroscience, Sidney Kimmel Medical Collage at Thomas Jefferson University, Philadelphia, PA, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA, USA.
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2
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Panigrahi SK, Das S, Majumdar S. Unveiling the potentials of hydrophilic and hydrophobic polymers in microparticle systems: Opportunities and challenges in processing techniques. Adv Colloid Interface Sci 2024; 326:103121. [PMID: 38457900 DOI: 10.1016/j.cis.2024.103121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
Conventional drug delivery systems are associated with various shortcomings, including low bioavailability and limited control over release. Biodegradable polymeric microparticles have emerged as versatile carriers in drug delivery systems addressing all these challenges. This comprehensive review explores the dynamic landscape of microparticles, considering the role of hydrophilic and hydrophobic materials. Within the continuously evolving domain of microparticle preparation methods, this review offers valuable insights into the latest advancements and addresses the factors influencing microencapsulation, which is pivotal for harnessing the full potential of microparticles. Exploration of the latest research in this dynamic field unlocks the possibilities of optimizing microencapsulation techniques to produce microparticles of desired characteristics and properties for different applications, which can help contribute to the ongoing evolution in the field of pharmaceutical science.
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Affiliation(s)
- Subrat Kumar Panigrahi
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Sougat Das
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India
| | - Saptarshi Majumdar
- Department of Chemical Engineering, Indian Institute of Technology, Hyderabad, Telangana 502285, India.
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3
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Rastegar G, Salman MM, Sirsi SR. Remote Loading: The Missing Piece for Achieving High Drug Payload and Rapid Release in Polymeric Microbubbles. Pharmaceutics 2023; 15:2550. [PMID: 38004529 PMCID: PMC10675060 DOI: 10.3390/pharmaceutics15112550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
The use of drug-loaded microbubbles for targeted drug delivery, particularly in cancer treatment, has been extensively studied in recent years. However, the loading capacity of microbubbles has been limited due to their surface area. Typically, drug molecules are loaded on or within the shell, or drug-loaded nanoparticles are coated on the surfaces of microbubbles. To address this significant limitation, we have introduced a novel approach. For the first time, we employed a transmembrane ammonium sulfate and pH gradient to load doxorubicin in a crystallized form in the core of polymeric microcapsules. Subsequently, we created remotely loaded microbubbles (RLMBs) through the sublimation of the liquid core of the microcapsules. Remotely loaded microcapsules exhibited an 18-fold increase in drug payload compared with physically loaded microcapsules. Furthermore, we investigated the drug release of RLMBs when exposed to an ultrasound field. After 120 s, an impressive 82.4 ± 5.5% of the loaded doxorubicin was released, demonstrating the remarkable capability of remotely loaded microbubbles for on-demand drug release. This study is the first to report such microbubbles that enable rapid drug release from the core. This innovative technique holds great promise in enhancing drug loading capacity and advancing targeted drug delivery.
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Affiliation(s)
| | | | - Shashank R. Sirsi
- Department of Bioengineering, Erik Johnson School of Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA; (G.R.); (M.M.S.)
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4
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Cao Y, Dumani DS, Hallam KA, Emelianov SY, Ran H. Real-time monitoring of NIR-triggered drug release from phase-changeable nanodroplets by photoacoustic/ultrasound imaging. PHOTOACOUSTICS 2023; 30:100474. [PMID: 37025112 PMCID: PMC10070823 DOI: 10.1016/j.pacs.2023.100474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/21/2023] [Accepted: 03/11/2023] [Indexed: 06/19/2023]
Abstract
Optical-responsive nanodroplets have recently been studied as a new mode of remotely controlled drug delivery. As a class of new emerging smart drug carriers, NIR-absorber-loaded perfluorocarbon nanodroplets can be converted into gas bubbles through laser stimulation, called optical droplet vaporization (ODV), which provides a potential strategy to deliver therapeutic agents to solid tumors on demand. However, there is a lack of suitable technologies to monitor these drug-loaded nanodroplet behaviors in vivo, and control the site and amount of drug released. In this study, ultrasound and photoacoustic imaging technology were applied to directly monitor optical-responsive, drug-loaded nanodroplets within the tissue. We explored the effects of laser energy, repetition rate, and number of pulses on the release profiles of the delivered drug as well as ultrasound and photoacoustic imaging signal-intensity curves. The conducted studies demonstrated that this noninvasive technology helped determine the optimum time point for laser activation on accumulated drug-loaded nanodroplets within tissues, allowing for the potential to effectively treat pathologies while minimizing drug-related toxicities.
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Affiliation(s)
- Yang Cao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of ultrasound imaging, Second Affiliated Hospital, State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Medical University, Chongqing 400010, PR China
| | - Diego S. Dumani
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, United States
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
- School of Electrical Engineering, University of Costa Rica, San Pedro, San José, 11501-2060 UCR, Costa Rica
| | - Kristina A. Hallam
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, United States
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Stanislav Y. Emelianov
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, GA 30332, United States
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Haitao Ran
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Institute of ultrasound imaging, Second Affiliated Hospital, State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Medical University, Chongqing 400010, PR China
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5
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Edwards IA, De Carlo F, Sitta J, Varner W, Howard CM, Claudio PP. Enhancing Targeted Therapy in Breast Cancer by Ultrasound-Responsive Nanocarriers. Int J Mol Sci 2023; 24:ijms24065474. [PMID: 36982548 PMCID: PMC10053544 DOI: 10.3390/ijms24065474] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/04/2023] [Accepted: 03/08/2023] [Indexed: 03/17/2023] Open
Abstract
Currently, the response to cancer treatments is highly variable, and severe side effects and toxicity are experienced by patients receiving high doses of chemotherapy, such as those diagnosed with triple-negative breast cancer. The main goal of researchers and clinicians is to develop new effective treatments that will be able to specifically target and kill tumor cells by employing the minimum doses of drugs exerting a therapeutic effect. Despite the development of new formulations that overall can increase the drugs’ pharmacokinetics, and that are specifically designed to bind overexpressed molecules on cancer cells and achieve active targeting of the tumor, the desired clinical outcome has not been reached yet. In this review, we will discuss the current classification and standard of care for breast cancer, the application of nanomedicine, and ultrasound-responsive biocompatible carriers (micro/nanobubbles, liposomes, micelles, polymeric nanoparticles, and nanodroplets/nanoemulsions) employed in preclinical studies to target and enhance the delivery of drugs and genes to breast cancer.
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Affiliation(s)
- Isaiah A. Edwards
- Department of Radiology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Flavia De Carlo
- Department of Pharmacology and Toxicology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Juliana Sitta
- Department of Radiology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - William Varner
- Department of Radiology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Candace M. Howard
- Department of Radiology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Pier Paolo Claudio
- Department of Pharmacology and Toxicology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS 39216, USA
- Correspondence:
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6
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Munir MU. Nanomedicine Penetration to Tumor: Challenges, and Advanced Strategies to Tackle This Issue. Cancers (Basel) 2022; 14:cancers14122904. [PMID: 35740570 PMCID: PMC9221319 DOI: 10.3390/cancers14122904] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 02/01/2023] Open
Abstract
Nanomedicine has been under investigation for several years to improve the efficiency of chemotherapeutics, having minimal pharmacological effects clinically. Ineffective tumor penetration is mediated by tumor environments, including limited vascular system, rising cancer cells, higher interstitial pressure, and extra-cellular matrix, among other things. Thus far, numerous methods to increase nanomedicine access to tumors have been described, including the manipulation of tumor micro-environments and the improvement of nanomedicine characteristics; however, such outdated approaches still have shortcomings. Multi-functional convertible nanocarriers have recently been developed as an innovative nanomedicine generation with excellent tumor infiltration abilities, such as tumor-penetrating peptide-mediated transcellular transport. The developments and limitations of nanomedicines, as well as expectations for better outcomes of tumor penetration, are discussed in this review.
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Affiliation(s)
- Muhammad Usman Munir
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72388, Aljouf, Saudi Arabia
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7
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Honari A, Kapilavaih PS, Akter N, Sirsi SR. Remote Loading of Gas Bubbles into Polylactic Acid Microcapsules Creates Acoustically Active Janus Particles. ACS APPLIED POLYMER MATERIALS 2022; 4:773-780. [PMID: 35187494 PMCID: PMC8846221 DOI: 10.1021/acsapm.1c01562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Polymeric microcapsules (MCs) are biocompatible agents used in biomedical applications such as drug delivery and in vivo imaging. We have discovered a method of remotely loading air into polylactic acid (PLA)-based MCs with an aqueous core. When the microcapsules are suspended in high content glycerol and propylene glycol solutions, changes in gas solubility cause bubbles to nucleate within the core through an "Ouzo-like" effect. The resulting bubble displaces the internal fluid of the MCs, but small molecules are retained in their interior. The residual content does not homogeneously distribute; rather, it localizes to one specific location, creating gas-filled Janus particles.
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8
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Folic acid-conjugated pH-responsive poly(methacrylic acid) nanospheres for targeted delivery of anticancer drugs to breast cancer cells. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118028] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Vaidya PB, Oeffinger BE, Patel R, Lacerda Q, Powell J, Eisenbrey JR, Wheatley MA. Shaping the synthesis of surfactant-stabilized oxygen microbubbles to accommodate encapsulated drug. Colloids Surf B Biointerfaces 2021; 208:112049. [PMID: 34454362 DOI: 10.1016/j.colsurfb.2021.112049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/03/2021] [Accepted: 08/14/2021] [Indexed: 12/14/2022]
Abstract
We have developed oxygen filled microbubbles, SE61O2, for localized, ultrasound-triggered oxygen delivery to hypoxic tumors prior to radiation therapy. Microbubbles, created by sonication, have a shell composed of D-α-Tocopherol polyethylene glycol 1000 succinate (TPGS) and sorbitan monostearate. Preliminary studies in mice with breast tumor xenographs showed that increases in oxygen partial pressure levels lasted less than 3 min, which is insufficient for most clinical applications. Hence, we investigated the potential of incorporating a hydrophobic antiglycolytic drug, modeled with Nile red. A new fabrication method was developed by first creating drug-loaded TPGS micelles. The resulting microbubbles had similar shell compositions, physical size, morphology, and acoustic properties as the original method. However, microbubble yield was more than doubled, resulting in twice the encapsulation efficiency. For the TPGS micelle method these include similar shell compositions (94.4 ± 0.6 % Montane 60), physical size post freeze-drying and reconstitution (1.57 ± 0.42 μm), morphology (spherical), and acoustic properties (maximum enhancement 19.92 ± 0.55 dB). However, microbubble yield was more than doubled, resulting in twice the encapsulation efficiency (up to 10.49 %). We propose that a nonideal mixture is formed when the surfactants are combined by the standard method, resulting in the formation of mixed micelles that are more stable, making microbubble creation more difficult during the sonication step.
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Affiliation(s)
- Purva B Vaidya
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - Brian E Oeffinger
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - Raj Patel
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States
| | - Quezia Lacerda
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States; Department of Radiology, Thomas Jefferson University, Philadelphia, PA, 19107, United States
| | - Jacob Powell
- Department of Chemistry, Drexel University, Philadelphia, PA, 19104, United States
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA, 19107, United States
| | - Margaret A Wheatley
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, 19104, United States.
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10
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Delaney LJ, Eisenbrey JR, Brown D, Brody JR, Jimbo M, Oeffinger BE, Stanczak M, Forsberg F, Liu JB, Wheatley MA. Gemcitabine-loaded microbubble system for ultrasound imaging and therapy. Acta Biomater 2021; 130:385-394. [PMID: 34082100 DOI: 10.1016/j.actbio.2021.05.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/23/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022]
Abstract
Ultrasound imaging presents many positive attributes, including safety, real-time imaging, universal accessibility, and cost. However, inherent difficulties in discrimination between soft tissues and tumors prompted development of stabilized microbubble contrast agents. This presents the opportunity to develop agents in which drug is entrapped in the microbubble shell. We describe preparation and characterization of theranostic poly(lactide) (PLA) and pegylated PLA (PEG-PLA) shelled microbubbles that entrap gemcitabine, a commonly used drug for pancreatic cancer (PDAC). Entrapping 6 wt% gemcitabine did not significantly affect drug activity, microbubble morphology, or ultrasound contrast activity compared with unmodified microbubbles. In vitro microbubble concentrations yielding ≥ 500nM entrapped gemcitabine were needed for complete cell death in MIA PaCa-2 PDAC drug sensitivity assays, compared with 62.5 nM free gemcitabine. In vivo administration of gemcitabine-loaded microbubbles to xenograft MIA PaCa-2 PDAC tumors in athymic mice was well tolerated and provided substantial tumoral image enhancement before and after destructive ultrasound pulses. However, no significant differences in tumor growth were observed among treatment groups, in keeping with the in vitro observation that much higher doses of gemcitabine are required to mirror free gemcitabine activity. STATEMENT OF SIGNIFICANCE: The preliminary results shown here are encouraging and support further investigation into increased gemcitabine loading. Encapsulation of gemcitabine within polylactic acid (PLA) microbubbles does not damage its activity towards pancreatic cancer (pancreatic ductal adenocarcinoma, PDAC) cells. Excellent imaging and evidence of penetration into the highly desmoplastic PDAC tumors is demonstrated. Microbubble destruction was confirmed in vivo, showing that elevated mechanical index shatters the microbubbles for enhanced delivery. The potential to slow PDAC growth in vivo is shown, but higher gemcitabine concentrations are required. Current efforts are directed at increasing drug loading by inclusion of drug-carrying nanoparticles for effective in vivo treatment.
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Affiliation(s)
- Lauren J Delaney
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA; Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - David Brown
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Jonathan R Brody
- Department of Surgery Jefferson Pancreas, Biliary, and Related Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Masaya Jimbo
- Department of Surgery Jefferson Pancreas, Biliary, and Related Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Department of Urology, Mayo Clinic, Rochester, MN 55905, USA
| | - Brian E Oeffinger
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Maria Stanczak
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA 19104, USA.
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11
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Sabir F, Zeeshan M, Laraib U, Barani M, Rahdar A, Cucchiarini M, Pandey S. DNA Based and Stimuli-Responsive Smart Nanocarrier for Diagnosis and Treatment of Cancer: Applications and Challenges. Cancers (Basel) 2021; 13:3396. [PMID: 34298610 PMCID: PMC8307033 DOI: 10.3390/cancers13143396] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/19/2021] [Accepted: 07/02/2021] [Indexed: 12/26/2022] Open
Abstract
The rapid development of multidrug co-delivery and nano-medicines has made spontaneous progress in tumor treatment and diagnosis. DNA is a unique biological molecule that can be tailored and molded into various nanostructures. The addition of ligands or stimuli-responsive elements enables DNA nanostructures to mediate highly targeted drug delivery to the cancer cells. Smart DNA nanostructures, owing to their various shapes, sizes, geometry, sequences, and characteristics, have various modes of cellular internalization and final disposition. On the other hand, functionalized DNA nanocarriers have specific receptor-mediated uptake, and most of these ligand anchored nanostructures able to escape lysosomal degradation. DNA-based and stimuli responsive nano-carrier systems are the latest advancement in cancer targeting. The data exploration from various studies demonstrated that the DNA nanostructure and stimuli responsive drug delivery systems are perfect tools to overcome the problems existing in the cancer treatment including toxicity and compromised drug efficacy. In this light, the review summarized the insights about various types of DNA nanostructures and stimuli responsive nanocarrier systems applications for diagnosis and treatment of cancer.
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Affiliation(s)
- Fakhara Sabir
- Faculty of Pharmacy, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös u. 6, H-6720 Szeged, Hungary;
| | - Mahira Zeeshan
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Ushna Laraib
- Department of Pharmacy, College of Pharmacy, University of Sargodha, Sargodha 40100, Pakistan;
| | - Mahmood Barani
- Medical Mycology and Bacteriology Research Center, Kerman University of Medical Sciences, Kerman 76169-13555, Iran;
| | - Abbas Rahdar
- Department of Physics, Faculty of Science, University of Zabol, Zabol 98615-538, Iran;
| | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Saarland University Medical Center, 66421 Homburg, Germany
| | - Sadanand Pandey
- Department of Chemistry, College of Natural Science, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Korea
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12
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Guo B, Li Z, Tu P, Tang H, Tu Y. Molecular Imaging and Non-molecular Imaging of Atherosclerotic Plaque Thrombosis. Front Cardiovasc Med 2021; 8:692915. [PMID: 34291095 PMCID: PMC8286992 DOI: 10.3389/fcvm.2021.692915] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/08/2021] [Indexed: 12/11/2022] Open
Abstract
Thrombosis in the context of atherosclerosis typically results in life-threatening consequences, including acute coronary events and ischemic stroke. As such, early detection and treatment of thrombosis in atherosclerosis patients is essential. Clinical diagnosis of thrombosis in these patients is typically based upon a combination of imaging approaches. However, conventional imaging modalities primarily focus on assessing the anatomical structure and physiological function, severely constraining their ability to detect early thrombus formation or the processes underlying such pathology. Recently, however, novel molecular and non-molecular imaging strategies have been developed to assess thrombus composition and activity at the molecular and cellular levels more accurately. These approaches have been successfully used to markedly reduce rates of atherothrombotic events in patients suffering from acute coronary syndrome (ACS) by facilitating simultaneous diagnosis and personalized treatment of thrombosis. Moreover, these modalities allow monitoring of plaque condition for preventing plaque rupture and associated adverse cardiovascular events in such patients. Sustained developments in molecular and non-molecular imaging technologies have enabled the increasingly specific and sensitive diagnosis of atherothrombosis in animal studies and clinical settings, making these technologies invaluable to patients' health in the future. In the present review, we discuss current progress regarding the non-molecular and molecular imaging of thrombosis in different animal studies and atherosclerotic patients.
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Affiliation(s)
- Bingchen Guo
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhaoyue Li
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Peiyang Tu
- College of Clinical Medicine, Hubei University of Science and Technology, Xianning, China
| | - Hao Tang
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yingfeng Tu
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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13
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Tan Y, Chen M, Chen H, Wu J, Liu J. Enhanced Ultrasound Contrast of Renal-Clearable Luminescent Gold Nanoparticles. Angew Chem Int Ed Engl 2021; 60:11713-11717. [PMID: 33665956 DOI: 10.1002/anie.202017273] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/14/2021] [Indexed: 12/31/2022]
Abstract
Renal-clearable nanoparticles are typically fast eliminated through the free glomerular filtration, which show weak interaction with the renal compartments and negligible ultrasound signals, raising challenges in direct imaging of kidney diseases. Here, we report the ultrasmall renal-clearable luminescent gold nanoparticles (AuNPs) with both pH-induced charge reversal and aggregation properties, and discover that enhanced ultrasound contrast could be facilely acquired through the increased tubular reabsorption and in situ aggregation of AuNPs in renal tubule cells in injured kidneys. The tuning elimination pathway of the renal-clearable luminescent AuNPs is further demonstrated to provide a synergistical fluorescence and ultrasound imaging strategy for diagnosing early kidney injury with precise anatomical information.
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Affiliation(s)
- Yue Tan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Miaona Chen
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Huarui Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Juefei Wu
- Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jinbin Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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14
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Tan Y, Chen M, Chen H, Wu J, Liu J. Enhanced Ultrasound Contrast of Renal‐Clearable Luminescent Gold Nanoparticles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yue Tan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Miaona Chen
- Department of Cardiology Nanfang Hospital Southern Medical University Guangzhou 510515 China
| | - Huarui Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
| | - Juefei Wu
- Department of Cardiology Nanfang Hospital Southern Medical University Guangzhou 510515 China
| | - Jinbin Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 China
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15
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Wei P, Cornel EJ, Du J. Ultrasound-responsive polymer-based drug delivery systems. Drug Deliv Transl Res 2021; 11:1323-1339. [PMID: 33761101 PMCID: PMC7989687 DOI: 10.1007/s13346-021-00963-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
Ultrasound-responsive polymeric materials have received a tremendous amount of attention from scientists for several decades. Compared to other stimuli-responsive materials (such as UV-, thermal-, and pH-responsive materials), these smart materials are more applicable since they allow more efficient drug delivery and targeted treatment by fairly non-invasive means. This review describes the recent advances of such ultrasound-responsive polymer-based drug delivery systems and illustrates various applications. More specifically, the mechanism of ultrasound-induced drug delivery, typical formulations, and biomedical applications (tumor therapy, disruption of blood-brain barrier, fighting infectious diseases, transdermal drug delivery, and enhanced thrombolysis) are summarized. Finally, a perspective on the future research directions for the development of ultrasound-responsive polymeric materials to facilitate a clinical translation is given.
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Affiliation(s)
- Ping Wei
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Erik Jan Cornel
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Jianzhong Du
- Department of Polymeric Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, Tongji University, 4800 Caoan Road, Shanghai, 201804, China. .,Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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16
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Nittayacharn P, Abenojar E, La Deda M, Ricciardi L, Strangi G, Exner AA. Iridium(III) Complex-Loaded Perfluoropropane Nanobubbles for Enhanced Sonodynamic Therapy. Bioconjug Chem 2021; 33:1057-1068. [PMID: 33677967 PMCID: PMC10108504 DOI: 10.1021/acs.bioconjchem.1c00082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sonodynamic therapy (SDT) is a novel promising approach for the minimally invasive treatment of cancer derived from photodynamic therapy (PDT). In this study, we have explored an effective sonosensitizer for SDT by loading the iridium(III) complex [Ir(ppy)2(en)] OOCCH3, where ppy = 2-phenylpyridine and en = ethylenediamine], from now on referred to as Ir, with high photosensitizing ability, into echogenic nanobubbles (Ir-NBs). Akin to photosensitizers, sonosensitizers are acoustically activated by deep-tissue-penetrating low-frequency ultrasound (US) resulting in a localized therapeutic effect attributed to an excessive generation of reactive oxygen species (ROS). The Ir-NB formulation was optimized, and the in vitro characterizations were carried out, including physical properties, acoustic performance, intracellular ROS generation, and cytotoxicity against two human cancer cell lines. Ir-NBs had an average size of 303.3 ± 91.7 nm with a bubble concentration of 9.28 × 1010 particles/mL immediately following production. We found that the initial Ir feeding concentration had a negligible effect on the NB size, but affected the bubble concentration as well as the acoustic performance of the NBs. Through a combination of sonication and Ir-NBs treatment, an increase of 68.8% and 69.6% cytotoxicity in human ovarian cancer cells (OVCAR-3) and human breast cancer cells (MCF-7), respectively, was observed compared to the application of Ir-NBs alone. Furthermore, Ir-NBs exposed to the US also induced the highest levels of intracellular ROS generation compared to free Ir and free Ir with empty NBs. The combination of these results suggests that the differences in treatment efficacy is a direct result of acoustic cavitation. These results provide evidence that US activated Ir-loaded NBs have the potential to become an effective sonosensitizer for SDT.
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Affiliation(s)
- Pinunta Nittayacharn
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Eric Abenojar
- Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Massimo La Deda
- Department of Chemistry and Chemical Technologies, University of Calabria, 87036 Rende, Cosenza, Italy.,CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Rende, Cosenza, Italy
| | - Loredana Ricciardi
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Rende, Cosenza, Italy
| | - Giuseppe Strangi
- CNR NANOTEC - Institute of Nanotechnology, UOS Cosenza, 87036 Rende, Cosenza, Italy.,Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Agata A Exner
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States.,Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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17
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Shen X, Li T, Xie X, Feng Y, Chen Z, Yang H, Wu C, Deng S, Liu Y. PLGA-Based Drug Delivery Systems for Remotely Triggered Cancer Therapeutic and Diagnostic Applications. Front Bioeng Biotechnol 2020; 8:381. [PMID: 32432092 PMCID: PMC7214837 DOI: 10.3389/fbioe.2020.00381] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/06/2020] [Indexed: 12/16/2022] Open
Abstract
Intelligent drug delivery systems based on nanotechnology have been widely developed and investigated in the field of nanomedicine since they were able to maximize the therapeutic efficacy and minimize the undesirable adverse effects. Among a variety of organic or inorganic nanomaterials available to fabricate drug delivery systems (DDSs) for cancer therapy and diagnosis, poly(D,L-lactic-co-glycolic acid) (PLGA) has been extensively employed due to its biocompatibility and biodegradability. In this paper, we review the recent status of research on the application of PLGA-based drug delivery systems (DDSs) in remotely triggered cancer therapy and the strategies for tumor imaging provided by PLGA-based DDSs. We firstly discuss the employment of PLGA-based DDSs for remotely triggered cancer therapy, including photo-triggered, ultrasound-triggered, magnetic field-triggered, and radiofrequency-triggered cancer therapy. Photo-triggered cancer therapy involves photodynamic therapy (PDT), photothermal therapy (PTT), and photo-triggered chemotherapeutics release. Ultrasound-triggered cancer therapy involves high intensity focused ultrasound (HIFU) treatment, ultrasound-triggered chemotherapeutics release, and ultrasound-enhanced efficiency of gene transfection. The strategies which endows PLGA-based DDSs with imaging properties and the PLGA-based cancer theranostics are further discussed. Additionally, we also discuss the targeting strategies which provide PLGA-based DDSs with passive, active or magnetic tumor-targeting abilities. Numerous studies cited in our review demonstrate the great potential of PLGA-based DDSs as effective theranostic agent for cancer therapy and diagnosis.
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Affiliation(s)
- Xue Shen
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Tingting Li
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoxue Xie
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Yi Feng
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhongyuan Chen
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China
| | - Hong Yang
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Chunhui Wu
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, China
| | - Shengqi Deng
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Yiyao Liu
- School of Life Sciences and Technology, University of Electronic Science and Technology of China, Chengdu, China.,Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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18
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Yang Y, Tu J, Yang D, Raymond JL, Roy RA, Zhang D. Photo- and Sono-Dynamic Therapy: A Review of Mechanisms and Considerations for Pharmacological Agents Used in Therapy Incorporating Light and Sound. Curr Pharm Des 2020; 25:401-412. [PMID: 30674248 DOI: 10.2174/1381612825666190123114107] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/15/2019] [Indexed: 01/06/2023]
Abstract
As irreplaceable energy sources of minimally invasive treatment, light and sound have, separately, laid solid foundations in their clinic applications. Constrained by the relatively shallow penetration depth of light, photodynamic therapy (PDT) typically involves involves superficial targets such as shallow seated skin conditions, head and neck cancers, eye disorders, early-stage cancer of esophagus, etc. For ultrasound-driven sonodynamic therapy (SDT), however, to various organs is facilitated by the superior... transmission and focusing ability of ultrasound in biological tissues, enabling multiple therapeutic applications including treating glioma, breast cancer, hematologic tumor and opening blood-brain-barrier (BBB). Considering the emergence of theranostics and precision therapy, these two classic energy sources and corresponding sensitizers are worth reevaluating. In this review, three typical therapies using light and sound as a trigger, PDT, SDT, and combined PDT and SDT are introduced. The therapeutic dynamics and current designs of pharmacological sensitizers involved in these therapies are presented. By introducing both the history of the field and the most up-to-date design strategies, this review provides a systemic summary on the development of PDT and SDT and fosters inspiration for researchers working on 'multi-modal' therapies involving light and sound.
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Affiliation(s)
- Yanye Yang
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Juan Tu
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Dongxin Yang
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
| | - Jason L Raymond
- Department of Engineering Science, University of Oxford, Oxford, United Kingdom.,Oxford-Suzhou Centre for Advanced Research, Suzhou, China
| | - Ronald A Roy
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China.,Department of Engineering Science, University of Oxford, Oxford, United Kingdom.,Oxford-Suzhou Centre for Advanced Research, Suzhou, China
| | - Dong Zhang
- Key Laboratory of Modern Acoustics (MOE), Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing 210093, China
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19
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Delaney LJ, Basgul C, MacDonald DW, Fitzgerald K, Hickok NJ, Kurtz SM, Forsberg F. Acoustic Parameters for Optimal Ultrasound-Triggered Release from Novel Spinal Hardware Devices. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:350-358. [PMID: 31732196 PMCID: PMC7139856 DOI: 10.1016/j.ultrasmedbio.2019.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/28/2019] [Accepted: 10/01/2019] [Indexed: 05/06/2023]
Abstract
Post-operative infection is a catastrophic complication of spinal fusion surgery, with rates as high as 10%, and existing preventative measures (i.e., peri-operative antibiotics) are only partially successful. To combat this clinical problem, we have designed a drug delivery system around polyether ether ketone clips to be used for prophylactic post-surgical release of antibiotics upon application of ultrasound. The overall hypothesis is that antimicrobial release from this system will aggressively combat post-surgical bacterial survival. This study investigated a set of acoustic parameters optimized for in vitro ultrasound-triggered coating rupture and subsequent release of encapsulated prophylactic antibiotics. We determined that a transducer frequency of 1.7 MHz produced the most consistent burst release and that, at this frequency, a pulse repetition frequency of 6.4 kHz and acoustic output power of 100% (3.41 MPa) produced the greatest release, representing an important proof of principle and the basis for continued development of this novel drug delivery system.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Cemile Basgul
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
| | - Daniel W MacDonald
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
| | - Keith Fitzgerald
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Noreen J Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Steven M Kurtz
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA; Exponent, Inc., Philadelphia, Pennsylvania, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
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20
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Mohamed TMD, Ji-Bin LMD, John REP. Recent Advances in Microbubble-Augmented Cancer Therapy. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2020. [DOI: 10.37015/audt.2020.200055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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21
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Delaney LJ, Ciraku L, Oeffinger BE, Wessner CE, Liu JB, Li J, Nam K, Forsberg F, Leeper DB, O'Kane P, Wheatley MA, Reginato MJ, Eisenbrey JR. Breast Cancer Brain Metastasis Response to Radiation After Microbubble Oxygen Delivery in a Murine Model. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2019; 38:3221-3228. [PMID: 31124171 PMCID: PMC7064157 DOI: 10.1002/jum.15031] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/02/2019] [Indexed: 05/05/2023]
Abstract
OBJECTIVES Hypoxic cancer cells have been shown to be more resistant to radiation therapy than normoxic cells. Hence, this study investigated whether ultrasound (US)-induced rupture of oxygen-carrying microbubbles (MBs) would enhance the response of breast cancer metastases to radiation. METHODS Nude mice (n = 15) received stereotactic injections of brain-seeking MDA-MB-231 breast cancer cells into the right hemisphere. Animals were randomly assigned into 1 of 5 treatment groups: no intervention, 10 Gy radiation using a small-animal radiation research platform, nitrogen-carrying MBs combined with US-mediated MB rupture immediately before 10 Gy radiation, oxygen-carrying MBs immediately before 10 Gy radiation, and oxygen-carrying MBs with US-mediated MB rupture immediately before 10 Gy radiation. Tumor progression was monitored with 3-dimensional US, and overall survival was noted. RESULTS All groups except those treated with oxygen-carrying MB rupture and radiation had continued rapid tumor growth after treatment. Tumors treated with radiation alone showed a mean increase in volume ± SD of 337% ± 214% during the week after treatment. Tumors treated with oxygen-carrying MBs and radiation without MB rupture showed an increase in volume of 383% ± 226%. Tumors treated with radiation immediately after rupture of oxygen-carrying MBs showed an increase in volume of only 41% ± 1% (P = 0.045), and this group also showed a 1 week increase in survival time. CONCLUSIONS Adding US-ruptured oxygen-carrying MBs to radiation therapy appears to delay tumor progression and improve survival in a murine model of metastatic breast cancer.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Lorela Ciraku
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Brian E Oeffinger
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
| | - Corinne E Wessner
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jingzhi Li
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
- Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Kibo Nam
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Dennis B Leeper
- Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Patrick O'Kane
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania, USA
| | - Mauricio J Reginato
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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22
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Drug-Loaded Microbubbles Combined with Ultrasound for Thrombolysis and Malignant Tumor Therapy. BIOMED RESEARCH INTERNATIONAL 2019; 2019:6792465. [PMID: 31662987 PMCID: PMC6791276 DOI: 10.1155/2019/6792465] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/22/2019] [Accepted: 09/14/2019] [Indexed: 12/14/2022]
Abstract
Cardiac-cerebral thrombosis and malignant tumor endanger the safety of human life seriously. Traditional chemotherapy drugs have side effects which restrict their applications. Drug-loaded microbubbles can be destroyed by ultrasound irradiation at the focus position and be used for thrombolysis and tumor therapy. Compared with traditional drug treatment, the drug-loaded microbubbles can be excited by ultrasound and release drugs to lesion sites, increasing the local drug concentration and the exposure dose to nonfocal regions, thus reducing the cytotoxicity and side effects of drugs. This article reviews the applications of drug-loaded microbubbles combined with ultrasound for thrombolysis and tumor therapy. We focus on highlighting the advantages of using this new technique for disease treatment and concluding with recommendations for future efforts on the applications of this technology.
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23
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Delaney LJ, MacDonald D, Leung J, Fitzgerald K, Sevit AM, Eisenbrey JR, Patel N, Forsberg F, Kepler CK, Fang T, Kurtz SM, Hickok NJ. Ultrasound-triggered antibiotic release from PEEK clips to prevent spinal fusion infection: Initial evaluations. Acta Biomater 2019; 93:12-24. [PMID: 30826477 PMCID: PMC6764442 DOI: 10.1016/j.actbio.2019.02.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/21/2019] [Accepted: 02/26/2019] [Indexed: 01/01/2023]
Abstract
Despite aggressive peri-operative antibiotic treatments, up to 10% of patients undergoing instrumented spinal surgery develop an infection. Like most implant-associated infections, spinal infections persist through colonization and biofilm formation on spinal instrumentation, which can include metal screws and rods for fixation and an intervertebral cage commonly comprised of polyether ether ketone (PEEK). We have designed a PEEK antibiotic reservoir that would clip to the metal fixation rod and that would achieve slow antibiotic release over several days, followed by a bolus release of antibiotics triggered by ultrasound (US) rupture of a reservoir membrane. We have found using human physiological fluid (synovial fluid), that higher levels (100–500 μg) of vancomycin are required to achieve a marked reduction in adherent bacteria vs. that seen in the common bacterial medium, trypticase soy broth. To achieve these levels of release, we applied a polylactic acid coating to a porous PEEK puck, which exhibited both slow and US-triggered release. This design was further refined to a one-hole or two-hole cylindrical PEEK reservoir that can clip onto a spinal rod for clinical use. Short-term release of high levels of antibiotic (340 ± 168 μg), followed by US-triggered release was measured (7420 ± 2992 μg at 48 h). These levels are sufficient to prevent adhesion of Staphylococcus aureus to implant materials. This study demonstrates the feasibility of an US-mediated antibiotic delivery device, which could be a potent weapon against spinal surgical site infection.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Daniel MacDonald
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - Jay Leung
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - Keith Fitzgerald
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA
| | - Alex M Sevit
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Neil Patel
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, 132 S. 10th Street, Philadelphia, PA 19107, USA
| | - Christopher K Kepler
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA; The Rothman Institute, Thomas Jefferson University, 925 Chestnut Street, Philadelphia, PA 19107, USA
| | - Taolin Fang
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA; The Rothman Institute, Thomas Jefferson University, 925 Chestnut Street, Philadelphia, PA 19107, USA
| | - Steven M Kurtz
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA; Exponent, Inc., 3440 Market Street Suite 600, Philadelphia, PA 19104, USA
| | - Noreen J Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA.
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24
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Margolis R, Wessner C, Stanczak M, Liu JB, Li J, Nam K, Forsberg F, Eisenbrey JR. Monitoring Progression of Ductal Carcinoma In Situ Using Photoacoustics and Contrast-Enhanced Ultrasound. Transl Oncol 2019; 12:973-980. [PMID: 31121489 PMCID: PMC6529783 DOI: 10.1016/j.tranon.2019.04.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 12/19/2022] Open
Abstract
Breast cancer is the leading form of cancer in women, accounting for approximately 41,400 deaths in 2018. While a variety of risk factors have been identified, physical exercise has been linked to reducing both the risk and aggressiveness of breast cancer. Within breast cancer, ductal carcinoma in situ (DCIS) is a common finding. However, less than 25% of DCIS tumors actually progress into invasive breast cancer, resulting in overtreatment. This overtreatment is due to a lack of predictive precursors to assess aggressiveness and development of DCIS. We hypothesize that tissue oxygenation and perfusion measured by photoacoustic and contrast-enhanced ultrasound imaging, respectively, can predict DCIS aggressiveness. To test this, 20 FVB/NJ and 20 SV40Tag mice that genetically develop DCIS-like breast cancers were divided evenly into exercise and control groups and imaged over the course of 6 weeks. Tissue oxygenation was a predictive precursor to invasive breast cancer for FVB/NJ mice (P = 0.015) in the early stages of tumor development. Meanwhile, perfusion results were inconclusive (P > 0.2) as a marker for disease progression. Moreover, voluntary physical exercise resulted in lower weekly tumor growth and significantly improved median survival (P = 0.014).
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Affiliation(s)
- Ryan Margolis
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Corinne Wessner
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Maria Stanczak
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Jingzhi Li
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Kibo Nam
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
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25
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Zhang B, Chen M, Zhang Y, Chen W, Zhang L, Chen L. An ultrasonic nanobubble-mediated PNP/fludarabine suicide gene system: A new approach for the treatment of hepatocellular carcinoma. PLoS One 2018; 13:e0196686. [PMID: 29718963 PMCID: PMC5931662 DOI: 10.1371/journal.pone.0196686] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 04/17/2018] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE The purpose of this study is to generate an ultrasonic nanobubble (NB)-mediated purine nucleoside phosphorylase (PNP)/fludarabine suicide gene system for the treatment of human hepatocellular carcinoma (HCC). METHODS NBs were prepared from a mixture the phospholipids 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and 1,2-dipalmitoyl-sn-glycero-3-phosphate (DPPA), perfluoropropane gas and other materials using the high shear dispersion method. NBs treated with ultrasound irradiation functioned as a gene-transfer system, and a self-constructed suicide gene expression plasmid, pcDNA3.1(+)/PNP, treated with fludarabine functioned as a therapeutic gene. This system was used to determine the cytotoxic effects of PNP/fludarabine on HepG2 cells and SMMC7721 cells. RESULTS 1. NBs with a small diameter (208-416 nm) and at a high concentration and fine homogeneity were prepared under the optimal method. 2. The pcDNA3.1(+)/PNP plasmid was efficiently transfected into HCC cells using ultrasonic NBs. 3. At 0.75μg/ml fludarabine, PNP/fludarabine showed marked cytotoxic effects toward HepG2 and SMMC7721 cells. PNP/fludarabine achieved the same effect against both SMMC7721 and HepG2 cells but at a lower concentration of fludarabine for the latter. 4. Bystander effects: a 10-20% decrease in the cell survival rate was observed when only 5-10% of transfected cells were PNP positive. CONCLUSIONS NBs constitute a non-toxic, stable and effective gene-delivery platform. The PNP/fludarabine suicide gene system inhibited the growth of HCC cells, induced HCC cell apoptosis, and caused a notable bystander effect at a low fludarabine concentration. This study establishes an important new method for miniaturizing microbubbles and improving a new NB-mediated approach for gene therapy of HCC.
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Affiliation(s)
- Bo Zhang
- Department of Ultrasonic Imaging, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingna Chen
- Department of Ultrasonic Imaging, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Youming Zhang
- Department of Radiology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Chen
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, China
| | - Lihua Zhang
- Hepatobiliary and Enteric Surgery Research Center, Xiangya Hospital, Central South University, Changsha, China
| | - Lv Chen
- Department of Occupational and Environmental Health, School of Public Health, Central South University, Changsha, Hunan, PR China
- * E-mail:
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26
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Li H, Yang Y, Zhang M, Yin L, Tu J, Guo X, Zhang D. Acoustic Characterization and Enhanced Ultrasound Imaging of Long-Circulating Lipid-Coated Microbubbles. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2018; 37:1243-1256. [PMID: 29127707 DOI: 10.1002/jum.14470] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 05/29/2017] [Accepted: 08/14/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES A long-circulating lipid-coated ultrasound (US) contrast agent was fabricated to achieve a longer wash-out time and gain more resistance against higher-mechanical index sonication. Systemic physical, acoustic, and in vivo imaging experiments were performed to better understand the underlying mechanism enabling the improvement of contrast agent performance by adjusting the physical and acoustic properties of contrast agent microbubbles. METHODS By simply altering the gas core, a kind of US contrast agent microbubble was synthesized with a similar lipid-coating shell as SonoVue microbubbles (Bracco SpA, Milan, Italy) to achieve a longer wash-out time and higher inertial cavitation threshold. To bridge the structure-performance relationship of the synthesized microbubbles, the imaging performance of the microbubbles was assessed in vivo with SonoVue as a control group. The size distribution and inertial cavitation threshold of the synthesized microbubbles were characterized, and the shell parameters of the microbubbles were determined by acoustic attenuation measurements. All of the measurements were compared with SonoVue microbubbles. RESULTS The synthesized microbubbles had a spherical shape, a smooth, consistent membrane, and a uniform distribution, with an average diameter of 1.484 μm. According to the measured attenuation curve, the synthesized microbubbles resonated at around 2.8 MHz. Although the bubble's shell elasticity (0.2 ± 0.09 N/m) was comparable with SonoVue, it had relatively greater viscosity and inertial cavitation because of the different gas core. Imaging studies showed that the synthesized microbubbles had a longer circulation time and a better chance of fighting against rapid collapse than SonoVue. CONCLUSIONS Nano/micrometer long-circulating lipid-coated microbubbles could be fabricated by simply altering the core composition of SonoVue microbubbles with a higher-molecular weight gas. The smaller diameter and higher inertial cavitation threshold of the synthesized microbubbles might make it easier to access deep-seated organs and give prolonged imaging enhancement in the liver.
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Affiliation(s)
- Hongbo Li
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
| | - Yanye Yang
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
| | - Meimei Zhang
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
- Department of Ultrasonography, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Liping Yin
- Department of Ultrasonography, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Juan Tu
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
| | - Xiasheng Guo
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
| | - Dong Zhang
- Key Laboratory of Modern Acoustics, Department of Physics, Collaborative Innovation Center of Advanced Microstructure, Nanjing University, Nanjing, China
- State Key Laboratory of Acoustics, Chinese Academy of Sciences, Beijing, China
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Jablonowski LJ, Conover D, Teraphongphom NT, Wheatley MA. Manipulating multifaceted microbubble shell composition to target both TRAIL-sensitive and resistant cells. J Biomed Mater Res A 2018. [PMID: 29521001 DOI: 10.1002/jbm.a.36389] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study represents the first attempt to combine surface TRAIL expression and doxorubicin co-encapsulation in a single drug delivery agent in the form of ultrasound-responsive microbubbles that shatter into fragments, or nanoshards, in an ultrasound beam. We compare customized microbubbles of different polymeric shell compositions, and investigate the effect of both shell composition and incorporation of doxorubicin on action against TRAIL-sensitive MDA-MB-231 and TRAIL-resistant MCF7 human breast adenocarcinoma cells. Ligation of TRAIL only significantly impacted MDA-MB-231 cells predominantly by apoptosis, and had minimal effect on MCF12A (normal control) cells. For all shell types, nanoshards had a greater effect (apoptotic death ranging from approximately 25% for 1 wt % LipidPEG to 50% for 100% PLA), reflecting the greater surface area and larger number of particles that ultrasound generates. Encapsulation of doxorubicin generated necrosis in all cell lines, but PEGylation produced less effective necrosis in all cell lines. Co-encapsulation of doxorubicin within the contrast agent shell increased MDA-MB-231 cell death to approximately 40-80%, representing a marked increase over TRAIL alone, reflecting the dramatic effect of shell composition. Additionally, shells that co-encapsulated TRAIL and doxorubicin resulted in approximately 30-60% death in TRAIL-resistant MCF7 human breast adenocarcinoma cells, compared with little apoptotic response in these cells from shells encapsulating TRAIL alone, demonstrating the sensitization effect of the drug. This work has resulted in production of a library of effective ultrasound-triggered, minimally immunogenic, targeted drug delivery agents for potential use in cancer therapy, and represents a promising multifaceted treatment to better serve the population with solid tumors. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1903-1915, 2018.
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Affiliation(s)
- Lauren J Jablonowski
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania, 19104
| | - Dolores Conover
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania, 19104
| | - Nutte T Teraphongphom
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania, 19104
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania, 19104
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Xia L, Karandish F, Kumar KN, Froberg J, Kulkarni P, Gange KN, Choi Y, Mallik S, Sarkar K. Acoustic Characterization of Echogenic Polymersomes Prepared From Amphiphilic Block Copolymers. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:447-457. [PMID: 29229268 DOI: 10.1016/j.ultrasmedbio.2017.10.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/06/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
Polymersomes are a class of artificial vesicles prepared from amphiphilic polymers. Like lipid vesicles (liposomes), they too can encapsulate hydrophilic and hydrophobic drug molecules in the aqueous core and the hydrophobic bilayer respectively, but are more stable than liposomes. Although echogenic liposomes have been widely investigated for simultaneous ultrasound imaging and controlled drug delivery, the potential of the polymersomes remains unexplored. We prepared two different echogenic polymersomes from the amphiphilic copolymers polyethylene glycol-poly-DL-lactic acid (PEG-PLA) and polyethylene glycol-poly-L-lactic acid (PEG-PLLA), incorporating multiple freeze-dry cycles in the synthesis protocol to ensure their echogenicity. We investigated acoustic behavior with potential applications in biomedical imaging. We characterized the polymeric vesicles acoustically with three different excitation frequencies of 2.25, 5 and 10 MHz at 500 kPa. The polymersomes exhibited strong echogenicity at all three excitation frequencies (about 50- and 25-dB enhancements in fundamental and subharmonic, respectively, at 5-MHz excitation from 20 µg/mL polymers in solution). Unlike echogenic liposomes, they emitted strong subharmonic responses. The scattering results indicated their potential as contrast agents, which was also confirmed by clinical ultrasound imaging.
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Affiliation(s)
- Lang Xia
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - Fataneh Karandish
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota
| | - Krishna Nandan Kumar
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC
| | - James Froberg
- Department of Physics, North Dakota State University, Fargo, North Dakota
| | - Prajakta Kulkarni
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota
| | - Kara N Gange
- Department of Health, Exercise, and Nutrition Sciences, North Dakota State University, Fargo, North Dakota
| | - Yongki Choi
- Department of Physics, North Dakota State University, Fargo, North Dakota
| | - Sanku Mallik
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota
| | - Kausik Sarkar
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, DC.
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29
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Zhang J, Zhang Y, Liu J, Li G, Wen Z, Zhao Y, Zhang X, Liu F. Targeting property and toxicity of a novel ultrasound contrast agent microbubble carrying the targeting and drug-loaded complex FA-CNTs-PTX on MCF7 cells. Colloids Surf B Biointerfaces 2017; 158:16-24. [DOI: 10.1016/j.colsurfb.2017.06.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 06/07/2017] [Accepted: 06/20/2017] [Indexed: 01/17/2023]
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Jablonowski LJ, Cochran MC, Eisenbrey JR, Teraphongphom NT, Wheatley MA. Shell effects on acoustic performance of a drug-delivery system activated by ultrasound. J Biomed Mater Res A 2017; 105:3189-3196. [DOI: 10.1002/jbm.a.36165] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 06/28/2017] [Accepted: 07/28/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Lauren J. Jablonowski
- School of Biomedical Engineering; Science, and Health Systems, Drexel University; Philadelphia Pennsylvania 19104
| | - Michael C. Cochran
- School of Biomedical Engineering; Science, and Health Systems, Drexel University; Philadelphia Pennsylvania 19104
| | - John R. Eisenbrey
- Department of Radiology; Thomas Jefferson University; Philadelphia Pennsylvania 19107
| | - Nutte T. Teraphongphom
- School of Biomedical Engineering; Science, and Health Systems, Drexel University; Philadelphia Pennsylvania 19104
| | - Margaret A. Wheatley
- School of Biomedical Engineering; Science, and Health Systems, Drexel University; Philadelphia Pennsylvania 19104
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Jablonowski LJ, Teraphongphom NT, Wheatley MA. Drug Delivery from a Multi-faceted Ultrasound Contrast Agent: Influence of Shell Composition. Mol Pharm 2017; 14:3448-3456. [DOI: 10.1021/acs.molpharmaceut.7b00451] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lauren J. Jablonowski
- School
of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| | - Nutte T. Teraphongphom
- School
of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
| | - Margaret A. Wheatley
- School
of Biomedical Engineering, Science, and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, Pennsylvania 19104, United States
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Lin YJ, Huang CC, Wan WL, Chiang CH, Chang Y, Sung HW. Recent advances in CO2 bubble-generating carrier systems for localized controlled release. Biomaterials 2017; 133:154-164. [DOI: 10.1016/j.biomaterials.2017.04.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 04/08/2017] [Accepted: 04/12/2017] [Indexed: 01/09/2023]
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Methachan B, Thanapprapasr K. Polymer-Based Materials in Cancer Treatment: From Therapeutic Carrier and Ultrasound Contrast Agent to Theranostic Applications. ULTRASOUND IN MEDICINE & BIOLOGY 2017; 43:69-82. [PMID: 27751594 DOI: 10.1016/j.ultrasmedbio.2016.09.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 09/07/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023]
Abstract
The emergence of theranostics with ultrasound technology is a promising development, as it opens pathways to providing more effective treatments for cancer. Advancements in ultrasound imaging would give a more detailed and accurate image for better diagnosis and treatment planning. Polymeric ultrasound contrast agents (UCAs) are appealing because they are stable and easily modified for active targeting. In addition, a better therapy could be achieved in conjunction with advancements in UCAs. The active targeting not only makes the precise imaging possible, but also leads to targeted delivery of active components to specific local treatment sites. A polymeric nanocarrier with surface bioconjugation is the key to prolonging the bioavailability of the encapsulated drugs or genes and the capacity to target the specific tumor site. Using ultrasound with other imaging modalities will open more precise and better ways for diagnosis and therapy and bring us a step closer to personalized medicine. This review focuses on polymer-based materials of UCAs, multimodal imaging agents and therapeutic carriers that have been currently explored for their theranostic applications involving ultrasound for cancer diagnosis and treatment.
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Affiliation(s)
- Boriphat Methachan
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Kamolrat Thanapprapasr
- Biomedical Engineering Research Unit, National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathumthani, Thailand.
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Du J, Liu D, Ebbini ES. Nonlinear Imaging of Microbubble Contrast Agent Using the Volterra Filter: In Vivo Results. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2016; 63:2069-2081. [PMID: 27705855 PMCID: PMC5759042 DOI: 10.1109/tuffc.2016.2614430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A nonlinear filtering approach to imaging the dynamics of microbubble ultrasound contrast agents (UCAs) in microvessels is presented. The approach is based on the adaptive third-order Volterra filter (TVF), which separates the linear, quadratic, and cubic components from beamformed pulse-echo ultrasound data. The TVF captures polynomial nonlinearities utilizing the full spectral components of the echo data and not from prespecified bands, e.g., second or third harmonics. This allows for imaging using broadband pulse transmission to preserve the axial resolution and the SNR. In this paper, we present the results from imaging the UCA activity in a 200- [Formula: see text] cellulose tube embedded in a tissue-mimicking phantom using a linear array diagnostic probe. The contrast enhancement was quantified by computing the contrast-to-tissue ratio (CTR) for the different imaging components, i.e., B-mode, pulse inversion (PI), and the TVF components. The temporal mean and standard deviation of the CTR values were computed for all frames in a given data set. Quadratic and cubic images, referred to as QB-mode and CB-mode, produced higher mean CTR values than B-mode, which showed improved sensitivity. Compared with PI, they produced similar or higher mean CTR values with greater spatial specificity. We also report in vivo results from imaging UCA activity in an implanted LNCaP tumor with heterogeneous perfusion. The temporal means and standard deviations of the echogenicity were evaluated in small regions with different perfusion levels in the presence and absence of UCA. The in vivo measurements behaved consistently with the corresponding calculations obtained under microflow conditions in vitro. Specifically, the nonlinear VF components produced larger increases in the temporal mean and standard deviation values compared with B-mode in regions with low to relatively high perfusion. These results showed that polynomial filters such as the TVF can provide an important tool for imaging UCA activity in regions with heterogeneous perfusion as is the case in some tumors and ischemic tissues.
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35
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Variable-temperature Fourier-transform infrared studies of poly(l-lactic acid) in different states of order: A 2DCOS and PCMW2D analysis. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.10.090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Novendra N, Hasirci N, Dilek C. Supercritical processing of CO 2 -philic polyhedral oligomeric silsesquioxane (POSS)-poly( l -lactic acid) composites. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.06.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Boissenot T, Bordat A, Fattal E, Tsapis N. Ultrasound-triggered drug delivery for cancer treatment using drug delivery systems: From theoretical considerations to practical applications. J Control Release 2016; 241:144-163. [DOI: 10.1016/j.jconrel.2016.09.026] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/19/2016] [Accepted: 09/21/2016] [Indexed: 12/21/2022]
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38
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Zardad AZ, Choonara YE, Du Toit LC, Kumar P, Mabrouk M, Kondiah PPD, Pillay V. A Review of Thermo- and Ultrasound-Responsive Polymeric Systems for Delivery of Chemotherapeutic Agents. Polymers (Basel) 2016; 8:E359. [PMID: 30974645 PMCID: PMC6431863 DOI: 10.3390/polym8100359] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/03/2016] [Accepted: 10/09/2016] [Indexed: 12/31/2022] Open
Abstract
There has been an exponential increase in research into the development of thermal- and ultrasound-activated delivery systems for cancer therapy. The majority of researchers employ polymer technology that responds to environmental stimuli some of which are physiologically induced such as temperature, pH, as well as electrical impulses, which are considered as internal stimuli. External stimuli include ultrasound, light, laser, and magnetic induction. Biodegradable polymers may possess thermoresponsive and/or ultrasound-responsive properties that can complement cancer therapy through sonoporation and hyperthermia by means of High Intensity Focused Ultrasound (HIFU). Thermoresponsive and other stimuli-responsive polymers employed in drug delivery systems can be activated via ultrasound stimulation. Polyethylene oxide/polypropylene oxide co-block or triblock polymers and polymethacrylates are thermal- and pH-responsive polymer groups, respectively but both have proven to have successful activity and contribution in chemotherapy when exposed to ultrasound stimulation. This review focused on collating thermal- and ultrasound-responsive delivery systems, and combined thermo-ultrasonic responsive systems; and elaborating on the advantages, as well as shortcomings, of these systems in cancer chemotherapy. The mechanisms of these systems are explicated through their physical alteration when exposed to the corresponding stimuli. The properties they possess and the modifications that enhance the mechanism of chemotherapeutic drug delivery from systems are discussed, and the concept of pseudo-ultrasound responsive systems is introduced.
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Affiliation(s)
- Az-Zamakhshariy Zardad
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Yahya Essop Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Lisa Claire Du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Mostafa Mabrouk
- Refractories, Ceramics and Building Materials, National Research Centre, 33 El-Bohouth St. (former El-Tahrir St.), Dokki, Giza P.O. 12622, Egypt.
| | - Pierre Pavan Demarco Kondiah
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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Jablonowski LJ, Alfego D, Andorko JI, Eisenbrey JR, Teraphongphom N, Wheatley MA. Balancing stealth and echogenic properties in an ultrasound contrast agent with drug delivery potential. Biomaterials 2016; 103:197-206. [DOI: 10.1016/j.biomaterials.2016.06.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 06/09/2016] [Accepted: 06/17/2016] [Indexed: 12/16/2022]
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Novel targets for paclitaxel nano formulations: Hopes and hypes in triple negative breast cancer. Pharmacol Res 2016; 111:577-591. [PMID: 27461138 DOI: 10.1016/j.phrs.2016.07.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 07/18/2016] [Accepted: 07/19/2016] [Indexed: 12/30/2022]
Abstract
Triple negative breast cancer is defined as one of the utmost prevailing breast cancers worldwide, possessing an inadequate prognosis and treatment option limited to chemotherapy and radiotherapy, creating a challenge for researchers as far as developing a specific targeted therapy is concerned. The past research era has shown several promising outcomes for TNBC such as nano-formulations of the chemotherapeutic agents already used for the management of the malignant tumor. Taking a glance at paclitaxel nano formulations, it has been proven beneficial in several researches in the past decade; nevertheless its solubility is often a challenge to scientists in achieving success. We have henceforth discussed the basic heterogeneity of triple negative breast cancer along with the current management options as well as a brief outlook on pros and cons of paclitaxel, known as the most widely used chemotherapeutic agent for the treatment of the disease. We further analyzed the need of nanotechnology pertaining to the problems encountered with the current paclitaxel formulations available discussing the strategic progress in various nano-formulations till date taking into account the basic research strategies required in terms of solubility, permeability, physicochemical properties, active and passive targeting. A thorough review in recent advances in active targeting for TNBC was carried out whereby the various ligands which are at present finding its way into TNBC research such as hyaluronic acid, folic acid, transferrin, etc. were discussed. These ligands have specific receptor affinity to TNBC tumor cells hence can be beneficial for novel drug targeting approaches. Conversely, there are currently several novel strategies in the research pipeline whose targeting ligands have not yet been studied. Therefore, we reviewed upon the numerous novel receptor targets along with the respective nano-formulation aspects which have not yet been fully researched upon and could be exemplified as outstanding target strategies for TNBC which is currently an urgent requirement.
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Zhong J, Yang S, Wen L, Xing D. Imaging-guided photoacoustic drug release and synergistic chemo-photoacoustic therapy with paclitaxel-containing nanoparticles. J Control Release 2016; 226:77-87. [PMID: 26860283 DOI: 10.1016/j.jconrel.2016.02.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 01/22/2016] [Accepted: 02/05/2016] [Indexed: 01/01/2023]
Abstract
Here, a novel triggered drug release modality was developed for oncotherapy. Paclitaxel (PTX), perfluorohexane (PFH) and gold nanorods (AuNRs) loaded nanoparticles (PTX-PAnP) were synthesized. Folic acid (FA) conjugated PTX-PAnP (PTX-PAnP-FA) could be selectively taken into folate receptor-overexpressed tumor cells. Upon pulsed laser irradiation, the PTX-PAnP-FA could be rapidly destructed because of the PFH vaporization, resulting in fast drug release, which induced apoptosis of cancer cells efficiently. Stimulated fragmentation of the PTX-PAnP-FA nanoparticles can facilitate multiple mechanisms such as bubble implosion, shockwave generation, and sonoporation that further enhance the therapeutic efficiency. The in vivo therapy study further confirmed this new approach resulted in efficient tumor suppression. The results demonstrate a unique drug release mechanism based on photoacoustic effect. It provides an all-in-one platform for photoacoustic image-guided drug release and synergistic chemo-photoacoustic therapy.
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Affiliation(s)
- Junping Zhong
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Sihua Yang
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Liewei Wen
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Da Xing
- MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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Meng M, Gao J, Wu C, Zhou X, Zang X, Lin X, Liu H, Wang C, Su H, Liu K, Wang Y, Xue X, Wu J. Doxorubicin nanobubble for combining ultrasonography and targeted chemotherapy of rabbit with VX2 liver tumor. Tumour Biol 2016; 37:8673-80. [PMID: 26738862 PMCID: PMC4990606 DOI: 10.1007/s13277-015-4525-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 11/26/2015] [Indexed: 01/11/2023] Open
Abstract
A new class of multifunctional nanobubble using poly(lactic-co-glycolic acid) (PLGA) has been developed as ultrasound imaging contrast agents, doxorubicin carriers, and enhancers of ultrasound-mediated drug delivery. The doxorubicin nanobubble (DOX-NB) wrapping carbon tetrafluoride gas was prepared with double emulsion method. We evaluated the enhanced ultrasonic function of the DOX-NB in vivo; its antitumor function was confirmed. The diameter of the prepared bubble was 500 nm, and the potential was −23 mV. The drug loading and encapsulation efficiency of the bubble were 78.6 and 7.4 %, respectively. Therefore, the DOX-NB greatly enhanced ultrasound imaging in vivo. Ultrasound combined with DOX-NB had significant antitumor effect. Compared with other groups, the tumor growth rate and the proliferation index were the lowest while the survival rate and apoptosis index were the highest.
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Affiliation(s)
- Mingming Meng
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Jie Gao
- The Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Chongchong Wu
- The Department of Radiology, Chinese PLA General Hospital, Beijing, China
| | - Xuan Zhou
- The Department of Critical Care Medicine, Chinese PLA General Hospital, Beijing, China
| | - Xuefeng Zang
- The Department of Critical Care Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Xiangchun Lin
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Hong Liu
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Canghai Wang
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Hui Su
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Kuiliang Liu
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Yadan Wang
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China
| | - Xinying Xue
- The Department of Special Medical Treatment, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China.
| | - Jing Wu
- The Department of Gastroenterology, Beijing Shijitan Hospital, Capital Medical University, 10 Tieyi Road, Yangfang District, Beijing, 100038, China.
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Zhang X, Zhao K, Wang J, Bai S, Jiao S, Zhang J, Yu L. Design of simvastatin-loaded polymeric microbubbles as targeted ultrasound contrast agents for vascular imaging and drug delivery in the identification of atherosclerotic plaque. NEW J CHEM 2016. [DOI: 10.1039/c5nj02292d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simvastatin-loaded polymeric microbubbles were synthesized as targeted ultrasound contrast agents and ultrasound-triggered drug carriers.
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Affiliation(s)
- Xiangyu Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
| | - Kaiyue Zhao
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
| | - Jun Wang
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Shujie Bai
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
| | - Shuqing Jiao
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
| | - Jie Zhang
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
| | - Lian Yu
- College of Pharmacy
- Jiamusi University
- Jiamusi 154007
- China
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45
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Yu FTH, Chen X, Wang J, Qin B, Villanueva FS. Low Intensity Ultrasound Mediated Liposomal Doxorubicin Delivery Using Polymer Microbubbles. Mol Pharm 2015; 13:55-64. [PMID: 26567985 DOI: 10.1021/acs.molpharmaceut.5b00421] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cardiotoxicity is the major dose-limiting factor in the chemotherapeutic use of doxorubicin (Dox). A delivery vehicle that can be triggered to release its payload in the tumoral microvasculature but not in healthy tissue would help improve the therapeutic window of the drug. Delivery strategies combining liposomal encapsulated Dox (LDox), microbubbles (MBs), and ultrasound (US) have been shown to improve therapeutic efficacy of LDox, but much remains to be known about the mechanisms and the US conditions that maximize cytotoxicity using this approach. In this study, we compared different US pulses in terms of drug release and acute toxicity. Drug uptake and proliferation rates using low-intensity US were measured in squamous cell carcinoma cells exposed to LDox conjugated to or coinjected with polymer MBs. The aims of this study were: (1) to compare the effects of low- and high-pressure US on Dox release kinetics; (2) to evaluate whether conjugating the liposome to the MB surface (DoxLPX) is an important factor for drug release and cytotoxicity; and (3) to determine which US parameters most inhibit cell proliferation and whether this inhibition is mediated by drug release or the MB/US interaction with cells. Low-pressure US (170 kPa) at high duty cycle (stable cavitation) released up to ∼ 70% of the encapsulated Dox from the DoxLPX, thus improving Dox bioavailability and cellular uptake and leading to a significant reduction in cell proliferation at 48 h. Flow cytometry showed that US generating stable oscillations of DoxLPX significantly increased cellular Dox uptake at 4 h after US exposure compared to LDox. Drug uptake was correlated with cytotoxicity at 48 h. Our results demonstrate that Dox-containing liposomes conjugated to polymer MBs can be triggered to release ∼ 70% of their payload using noninertial US. Following release, Dox became bioavailable to the cells and induced significantly higher cytotoxicity compared to nonreleased encapsulated drug. Our findings show promise for targeted drug delivery using this theranostic delivery platform at low US intensities.
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Affiliation(s)
- Francois T H Yu
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States
| | - Xucai Chen
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States
| | - Jianjun Wang
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States
| | - Bin Qin
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States
| | - Flordeliza S Villanueva
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh , Pittsburgh, Pennsylvania 15213, United States
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46
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Teraphongphom N, Chhour P, Eisenbrey JR, Naha PC, Witschey WRT, Opasanont B, Jablonowski L, Cormode DP, Wheatley MA. Nanoparticle Loaded Polymeric Microbubbles as Contrast Agents for Multimodal Imaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:11858-67. [PMID: 26446176 PMCID: PMC4818153 DOI: 10.1021/acs.langmuir.5b03473] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ultrasound contrast agents are typically microbubbles (MB) with a gas core that is stabilized by a shell made of lipids, proteins, or polymers. The high impedance mismatch between the gas core and an aqueous environment produces strong contrast in ultrasound (US). Poly(lactic acid) (PLA) MB, previously developed in our laboratory, have been shown to be highly echogenic both in vitro and in vivo. Combining US with other imaging modalities such as fluorescence, magnetic resonance imaging (MRI), or computerized tomography (CT) could improve the accuracy of many US applications and provide more comprehensive diagnostic information. Furthermore, our MB have the capacity to house a drug in the PLA shell and create drug-loaded nanoparticles in situ when passing through an ultrasound beam. To create multimodal contrast agents, we hypothesized that the polymer shell of our PLA MB platform could accommodate additional payloads. In this study, we therefore modified our current MB by encapsulating nanoparticles including aqueous or organic quantum dots (QD), magnetic iron oxide nanoparticles (MNP), or gold nanoparticles (AuNP) to create bimodality platforms in a manner that minimally compromised the performance of each individual imaging technique.
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Affiliation(s)
- Nutte Teraphongphom
- School of Biomedical Engineering, Science and Health Systems, Drexel University , Philadelphia, Pennsylvania 19104 United States
| | - Peter Chhour
- Department of Radiology, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University , Philadelphia, Pennsylvania 19107, United States
| | - Pratap C Naha
- Department of Radiology, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Walter R T Witschey
- Department of Radiology, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
- Department of Surgery, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Borirak Opasanont
- Chemical and Biological Engineering Department, Drexel University , Philadelphia, Pennsylvania 19104 United States
| | - Lauren Jablonowski
- School of Biomedical Engineering, Science and Health Systems, Drexel University , Philadelphia, Pennsylvania 19104 United States
| | - David P Cormode
- Department of Radiology, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science and Health Systems, Drexel University , Philadelphia, Pennsylvania 19104 United States
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47
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Khokhlova TD, Haider Y, Hwang JH. Therapeutic potential of ultrasound microbubbles in gastrointestinal oncology: recent advances and future prospects. Therap Adv Gastroenterol 2015; 8:384-94. [PMID: 26557894 PMCID: PMC4622285 DOI: 10.1177/1756283x15592584] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Microbubbles were initially invented as contrast agents for ultrasound imaging. However, lately more and more therapeutic applications of microbubbles are emerging, mostly related to drug and gene delivery. Ultrasound is a safe and noninvasive therapeutic modality which has the unique ability to interact with microbubbles and release their payload in situ in addition to permeabilizing the target tissues. The combination of drug-loaded microbubbles and ultrasound has been used in preclinical studies on blood-brain barrier opening, drug and gene delivery to solid tumors, and ablation of blood vessels. This review covers the basic principles of ultrasound-microbubble interaction, the types of microbubbles and the effect they have on tissue, and the preclinical and clinical experience with this approach to date in the field of gastrointestinal oncology.
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Affiliation(s)
- Tatiana D. Khokhlova
- Division of Gastroenterology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Yasser Haider
- Department of Urology, University of Washington, Seattle, WA, USA
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48
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Nottelet B, Darcos V, Coudane J. Aliphatic polyesters for medical imaging and theranostic applications. Eur J Pharm Biopharm 2015; 97:350-70. [DOI: 10.1016/j.ejpb.2015.06.023] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/12/2015] [Accepted: 06/13/2015] [Indexed: 01/04/2023]
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Albala L, Ercan UK, Joshi SG, Eisenbrey JR, Teraphongphom N, Wheatley MA. Preservation of imaging capability in sensitive ultrasound contrast agents after indirect plasma sterilization. Int J Pharm 2015; 494:146-51. [PMID: 26241754 DOI: 10.1016/j.ijpharm.2015.07.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 05/24/2015] [Accepted: 07/26/2015] [Indexed: 12/14/2022]
Abstract
Many injectables are not amenable to standard sterilization methods, which destroy sensitive materials. This is particularly true for ultrasound contrast agents (UCA) consisting of gas bubbles stabilized by a surfactant or polymer shell. We investigated a new method to achieve safe and effective sterilization in production by introducing dielectric-barrier discharge non-thermal plasma. A dielectric-barrier discharge was generated to first produce plasma-treated phosphate-buffered saline (PTPBS), which was used as a sterilant solution for our UCA SE61, avoiding direct heat, pressure, chemicals, or radiation. Treated samples were tested for acoustic properties in vitro and in a flow phantom, and for sterility by standard methods. Three minutes plasma treatment of phosphate-buffered saline (PBS) proved effective. The samples showed significant inactivation of inoculated bacteria upon PTPBS treatment as compared to un-treated-PBS (p=0.0022). The treated and untreated samples showed no statistical significance (p>0.05) in acoustic response or bubble diameter (mean±SEM: 2.52±0.31 μm). Nile Red was used to model intercalation of drug in the hydrophobic shell, intercalated successfully into SE61, and was unaffected by plasma treatment. The PTPBS completely sterilized suspensions of UCA, and it did not compromise the acoustic properties of the agent or its ability to retain a hydrophobic compound.
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Affiliation(s)
- Lorenzo Albala
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Utku K Ercan
- Department of Biomedical Engineering, Izmir Katip Celebi University, Izmir, Turkey
| | - Suresh G Joshi
- Center for Surgical Infection and Biofilm, Department of Microbiology & Immunology, College of Medicine, Drexel University, Philadelphia, PA 19102, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Nutte Teraphongphom
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Margaret A Wheatley
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
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50
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Bloch M, Kenett R, Jablonowski L, Wheatley M, Yavin E, Rubinstein A. A multifactorial analysis of complex pharmaceutical platforms: an application of design of experiments to targetable polyacrylamide and ultrasound contrast agents. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Meital Bloch
- Faculty of Medicine, The School of Pharmacy Institute for Drug Research; The Hebrew University of Jerusalem; P.O. Box 12065 Jerusalem 91120 Israel
| | - Ron Kenett
- Faculty of Medicine, The School of Pharmacy Institute for Drug Research; The Hebrew University of Jerusalem; P.O. Box 12065 Jerusalem 91120 Israel
| | - Lauren Jablonowski
- School of Biomedical Engineering, Science & Health Systems; Drexel University; Philadelphia 19104 PA USA
| | - Margaret Wheatley
- School of Biomedical Engineering, Science & Health Systems; Drexel University; Philadelphia 19104 PA USA
| | - Eylon Yavin
- Faculty of Medicine, The School of Pharmacy Institute for Drug Research; The Hebrew University of Jerusalem; P.O. Box 12065 Jerusalem 91120 Israel
| | - Abraham Rubinstein
- Faculty of Medicine, The School of Pharmacy Institute for Drug Research; The Hebrew University of Jerusalem; P.O. Box 12065 Jerusalem 91120 Israel
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