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Barcena AJR, Perez JVD, Bernardino MR, Damasco JA, San Valentin EMD, Klusman C, Martin B, Canlas GM, Heralde FM, Fowlkes N, Bouchard RR, Cheng J, Huang SY, Melancon MP. Bismuth-infused perivascular wrap facilitates delivery of mesenchymal stem cells and attenuation of neointimal hyperplasia in rat arteriovenous fistulas. BIOMATERIALS ADVANCES 2024; 166:214052. [PMID: 39341164 DOI: 10.1016/j.bioadv.2024.214052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 09/10/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024]
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have emerged as novel therapies for supporting arteriovenous fistula (AVF) maturation, and bioresorbable polymeric scaffolds have enabled sustained MSC delivery into maturing AVFs. However, the radiolucency of biopolymeric wraps prevents in vivo monitoring of their integrity and location, hindering long-term preclinical investigations. METHODS We infused bismuth nanoparticles (BiNPs) into polycaprolactone (PCL) to fabricate an electrospun perivascular wrap capable of MSC delivery and conducive to longitudinal monitoring using conventional imaging. We tested the wraps' effects on the attenuation of markers of neointimal hyperplasia (i.e., endothelial dysfunction, hypoxia, and inflammation), the leading cause of AVF failure, in rats with induced chronic kidney disease (n = 3 per time point) for the following groups: control (no wrap), PCL wrap, PCL with MSCs, PCL-Bi (BiNP-infused wrap), and PCL-Bi with MSCs. RESULTS Physicochemical characterization and in vitro biocompatibility tests revealed that BiNP infusion did not alter the wrap's non-cytotoxicity toward vascular cells, hemocompatibility, and capacity for MSC loading but facilitated long-term monitoring via micro-computed tomography. After 8 weeks, all treatment groups demonstrated significant improvement in wall-to-lumen ratio on ultrasonography (P < 0.001), neointima-to-lumen ratio on histomorphometry (P < 0.001), and attenuation of neointimal hypoxia on immunohistochemistry (P < 0.05). Compared to non-MSC wraps, MSC-loaded wraps not only attenuated endothelial dysfunction and neointimal inflammation but also reduced hypoxia and inflammation across all vascular layers. CONCLUSION These results demonstrate that MSC delivery through a radiopaque polymeric wrap could enhance AVF patency outcomes through the inhibition of multiple pathways inducing AVF failure.
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Affiliation(s)
- Allan John R Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Joy Vanessa D Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Marvin R Bernardino
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jossana A Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Baylor College of Medicine, Houston, TX 77030, USA
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Francisco M Heralde
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Richard R Bouchard
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jizhong Cheng
- Division of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030, USA
| | - Steven Y Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marites P Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; The University of Texas MD Anderson Cancer Center, UTHealth Houston, Graduate School of Biomedical Sciences, Houston, TX 77030, USA.
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Melancon AD, Jacobsen M, Damasco J, Perez J, Bernardino M, Valentin ES, Court KA, Godin B, Layman R, Melancon MP. Correction for partial volume averaging in the quantification of radiopaque nanomaterial-embedded resorbable polymers. Biomed Phys Eng Express 2024; 10:055021. [PMID: 39094587 DOI: 10.1088/2057-1976/ad6a66] [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: 02/29/2024] [Accepted: 08/02/2024] [Indexed: 08/04/2024]
Abstract
Resorbable inferior vena cava (IVC) filters require embedded contrast for image-guided placement and integrity monitoring. We calculated correction factors to account for partial volume averaging of thin nanoparticle (NP)-embedded materials, accounting for object and slice thicknesses, background signal, and nanoparticle concentration. We used phantoms containing polycaprolactone disks embedded with bismuth (Bi) or ytterbium (Yb): 0.4- to 1.2-mm-thick disks of 20 mg ml-1NPs (thickness phantom), 0.4-mm-thick disks of 0-20 mg ml-1NPs in 2 mg ml-1iodine (concentration phantom), and 20 mg ml-1NPs in 0.4-mm-thick disks in 0-10 mg ml-1iodine (background phantom). Phantoms were scanned on a dual-source CT with 80, 90, 100, and 150 kVp with tin filtration and reconstructed at 1.0- to 1.5-mm slice thickness with a 0.1-mm interval. Following scanning, disks were processed for inductively coupled plasma optical emission spectrometry (ICP-OES) to determine NP concentration. Mean and maximum CT numbers (HU) of all disks were measured over a 0.5-cm2area for each kVp. HU was converted to concentration using previously measured calibrations. Concentration measurements were corrected for partial volume averaging by subtracting residual slice background and extrapolating disk thickness to both nominal and measured slice sensitivity profiles (SSP, mm). Slice thickness to agreement (STTA, mm) was calculated by replacing the CT-derived concentrations with ICP-OES measurements and solving for thickness. Slice thickness correction factors improved agreement with ICP-OES for all measured data. Yb corrections resulted in lower STTA than Bi corrections in the concentration phantom (1.01 versus 1.31 STTA/SSP, where 1.0 is perfect agreement), phantoms with varying thickness (1.30 versus 1.87 STTA/SSP), and similar ratio in phantoms with varying background iodine concentration (1.34 versus 1.35 STTA/SSP). All measured concentrations correlated strongly with ICP-OES and all corrections for partial volume averaging increased agreement with ICP-OES concentration, demonstrating potential for monitoring the integrity of thin IVC resorbable filters with CT.
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Affiliation(s)
- Adam D Melancon
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
| | - Megan Jacobsen
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Jossana Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Joy Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Marvin Bernardino
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Erin San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Karem A Court
- Department of Nanomedicine, Houston Methodist Research Hospital, Houston, TX, 77030, United States of America
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Hospital, Houston, TX, 77030, United States of America
| | - Rick Layman
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Marites P Melancon
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
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Layman RR, Leng S, Boedeker KL, Burk LM, Dang H, Duan X, Jacobsen MC, Li B, Li K, Little K, Madhav P, Miller J, Nute JL, Giraldo JCR, Ruchala KJ, Tao S, Varchena V, Vedantham S, Zeng R, Zhang D. AAPM Task Group Report 299: Quality control in multi-energy computed tomography. Med Phys 2024. [PMID: 39072826 DOI: 10.1002/mp.17322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 07/30/2024] Open
Abstract
Multi-energy computed tomography (MECT) offers the opportunity for advanced visualization, detection, and quantification of select elements (e.g., iodine) or materials (e.g., fat) beyond the capability of standard single-energy computed tomography (CT). However, the use of MECT requires careful consideration as substantially different hardware and software approaches have been used by manufacturers, including different sets of user-selected or hidden parameters that affect the performance and radiation dose of MECT. Another important consideration when designing MECT protocols is appreciation of the specific tasks being performed; for instance, differentiating between two different materials or quantifying a specific element. For a given task, it is imperative to consider both the radiation dose and task-specific image quality requirements. Development of a quality control (QC) program is essential to ensure the accuracy and reproducibility of these MECT applications. Although standard QC procedures have been well established for conventional single-energy CT, the substantial differences between single-energy CT and MECT in terms of system implementations, imaging protocols, and clinical tasks warrant QC tests specific to MECT. This task group was therefore charged with developing a systematic QC program designed to meet the needs of MECT applications. In this report, we review the various MECT approaches that are commercially available, including information about hardware implementation, MECT image types, image reconstruction, and postprocessing techniques that are unique to MECT. We address the requirements for MECT phantoms, review representative commercial MECT phantoms, and offer guidance regarding homemade MECT phantoms. We discuss the development of MECT protocols, which must be designed carefully with proper consideration of MECT technology, imaging task, and radiation dose. We then outline specific recommended QC tests in terms of general image quality, radiation dose, differentiation and quantification tasks, and diagnostic and therapeutic applications.
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Affiliation(s)
- Rick R Layman
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Shuai Leng
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Laurel M Burk
- U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | | | - Xinhui Duan
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Megan C Jacobsen
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Baojun Li
- Department of Radiology, Boston University Medical Center, Boston, Massachusetts, USA
| | - Ke Li
- Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Kevin Little
- Department of Radiology, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | | | - Jessica Miller
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
| | - Jessica L Nute
- Department of Radiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | | | | | - Shengzhen Tao
- Department of Radiology, Mayo Clinic, Jacksonville, Florida, USA
| | | | | | - Rongping Zeng
- U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Da Zhang
- Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
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Barcena AJR, Perez JVD, Bernardino MR, San Valentin EMD, Damasco JA, Klusman C, Martin B, Court KA, Godin B, Canlas G, Fowlkes N, Bouchard RR, Cheng J, Huang SY, Melancon MP. Controlled Delivery of Rosuvastatin or Rapamycin through Electrospun Bismuth Nanoparticle-Infused Perivascular Wraps Promotes Arteriovenous Fistula Maturation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33159-33168. [PMID: 38912610 DOI: 10.1021/acsami.4c06042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
In the context of arteriovenous fistula (AVF) failure, local delivery enables the release of higher concentrations of drugs that can suppress neointimal hyperplasia (NIH) while reducing systemic adverse effects. However, the radiolucency of polymeric delivery systems hinders long-term in vivo surveillance of safety and efficacy. We hypothesize that using a radiopaque perivascular wrap to deliver anti-NIH drugs could enhance AVF maturation. Through electrospinning, we fabricated multifunctional perivascular polycaprolactone (PCL) wraps loaded with bismuth nanoparticles (BiNPs) for enhanced radiologic visibility and drugs that can attenuate NIH─rosuvastatin (Rosu) and rapamycin (Rapa). The following groups were tested on the AVFs of a total of 24 Sprague-Dawley rats with induced chronic kidney disease: control (i.e., without wrap), PCL-Bi (i.e., wrap with BiNPs), PCL-Bi-Rosu, and PCL-Bi-Rapa. We found that BiNPs significantly improved the wraps' radiopacity without affecting biocompatibility. The drug release profiles of Rosu (hydrophilic drug) and Rapa (hydrophobic drug) differed significantly. Rosu demonstrated a burst release followed by gradual tapering over 8 weeks, while Rapa demonstrated a gradual release similar to that of the hydrophobic BiNPs. In vivo investigations revealed that both drug-loaded wraps can reduce vascular stenosis on ultrasonography and histomorphometry, as well as reduce [18F]Fluorodeoxyglucose uptake on positron emission tomography. Immunohistochemical studies revealed that PCL-Bi-Rosu primarily attenuated endothelial dysfunction and hypoxia in the neointimal layer, while PCL-Bi-Rapa modulated hypoxia, inflammation, and cellular proliferation across the whole outflow vein. In summary, the controlled delivery of drugs with different properties and mechanisms of action against NIH through a multifunctional, radiopaque perivascular wrap can improve imaging and histologic parameters of AVF maturation.
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Affiliation(s)
- Allan John R Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Joy Vanessa D Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Marvin R Bernardino
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Jossana A Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- Baylor College of Medicine, Houston, Texas 77030, United States
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- Baylor College of Medicine, Houston, Texas 77030, United States
| | - Karem A Court
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Gino Canlas
- Department of Chemistry, Lamar University, Beaumont, Texas 77705, United States
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Richard R Bouchard
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Jizhong Cheng
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Steven Y Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Marites P Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, Texas 77030, United States
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San Valentin EM, Damasco JA, Bernardino M, Court KA, Godin B, Canlas GM, Melancon A, Chintalapani G, Jacobsen MC, Norton W, Layman RR, Fowlkes N, Chen SR, Huang SY, Melancon MP. Image-Guided Deployment and Monitoring of a Novel Tungsten Nanoparticle-Infused Radiopaque Absorbable Inferior Vena Cava Filter in a Swine Model. J Vasc Interv Radiol 2024; 35:113-121.e3. [PMID: 37696432 PMCID: PMC10872373 DOI: 10.1016/j.jvir.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/13/2023] Open
Abstract
PURPOSE To improve radiopacity of radiolucent absorbable poly-p-dioxanone (PPDO) inferior vena cava filters (IVCFs) and demostrate their effectiveness in clot-trapping ability. MATERIALS AND METHODS Tungsten nanoparticles (WNPs) were incorporated along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of WNPs. The physicochemical and in vitro and in vivo imaging properties of PPDO IVCFs with WNPs with single-polymer PHB (W-P) were compared with those of WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB). RESULTS In vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the inherent physicomechanical properties of the PPDO sutures. W-P- and W-PB-coated IVCFs were deployed successfully into the inferior vena cava of pig models with monitoring by fluoroscopy. At the time of deployment, W-PB-coated IVCFs showed a 2-fold increase in radiopacity compared to W-P-coated IVCFs. Longitudinal monitoring of in vivo IVCFs over a 12-week period showed a drastic decrease in radiopacity at Week 3 for both filters. CONCLUSIONS The results highlight the utility of nanoparticles (NPs) and polymers for enhancing radiopacity of medical devices. Different methods of incorporating NPs and polymers can still be explored to improve the effectiveness, safety, and quality of absorbable IVCFs.
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Affiliation(s)
- Erin Marie San Valentin
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jossana A Damasco
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Marvin Bernardino
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Karem A Court
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas
| | | | - Adam Melancon
- Department of Radiation Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Megan C Jacobsen
- Department of Imaging Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William Norton
- Department of Veterinary Medicine and Surgery, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Rick R Layman
- Department of Imaging Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Stephen R Chen
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Steven Y Huang
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Marites P Melancon
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas.
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Thompson EA, Jacobsen MC, Fuentes DT, Layman RR, Cressman ENK. Quantitative dual-energy computed tomography with cesium as a novel contrast agent for localization of thermochemical ablation in phantoms and ex vivo models. Med Phys 2023; 50:7879-7890. [PMID: 37409792 PMCID: PMC10770302 DOI: 10.1002/mp.16558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 06/02/2023] [Accepted: 06/11/2023] [Indexed: 07/07/2023] Open
Abstract
BACKGROUND Thermochemical ablation (TCA) is a minimally invasive therapy under development for hepatocellular carcinoma. TCA simultaneously delivers an acid (acetic acid, AcOH) and base (sodium hydroxide, NaOH) directly into the tumor, where the acid/base chemical reaction produces an exotherm that induces local ablation. However, AcOH and NaOH are not radiopaque, making monitoring TCA delivery difficult. PURPOSE We address the issue of image guidance for TCA by utilizing cesium hydroxide (CsOH) as a novel theranostic component of TCA that is detectable and quantifiable with dual-energy CT (DECT). MATERIALS AND METHODS To quantify the minimum concentration of CsOH that can be positively identified by DECT, the limit of detection (LOD) was established in an elliptical phantom (Multi-Energy CT Quality Assurance Phantom, Kyoto Kagaku, Kyoto, Japan) with two DECT technologies: a dual-source system (SOMATOM Force, Siemens Healthineers, Forchheim, Germany) and a split-filter, single-source system (SOMATOM Edge, Siemens Healthineers). The dual-energy ratio (DER) and LOD of CsOH were determined for each system. Cesium concentration quantification accuracy was evaluated in a gelatin phantom before quantitative mapping was performed in ex vivo models. RESULTS On the dual-source system, the DER and LOD were 2.94 and 1.36-mM CsOH, respectively. For the split-filter system, the DER and LOD were 1.41- and 6.11-mM CsOH, respectively. The signal on cesium maps in phantoms tracked linearly with concentration (R2 = 0.99) on both systems with an RMSE of 2.56 and 6.72 on the dual-source and split-filter system, respectively. In ex vivo models, CsOH was detected following delivery of TCA at all concentrations. CONCLUSIONS DECT can be used to detect and quantify the concentration of cesium in phantom and ex vivo tissue models. When incorporated in TCA, CsOH performs as a theranostic agent for quantitative DECT image-guidance.
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Affiliation(s)
- Emily A Thompson
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Megan C Jacobsen
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - David T Fuentes
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Rick R Layman
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Erik N K Cressman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Barcena AJR, Perez JVD, Damasco JA, Bernardino MR, San Valentin EMD, Klusman C, Martin B, Cortes A, Canlas GM, Del Mundo HC, Heralde FM, Avritscher R, Fowlkes N, Bouchard RR, Cheng J, Huang SY, Melancon MP. Gold Nanoparticles for Monitoring of Mesenchymal Stem-Cell-Loaded Bioresorbable Polymeric Wraps for Arteriovenous Fistula Maturation. Int J Mol Sci 2023; 24:11754. [PMID: 37511512 PMCID: PMC10380871 DOI: 10.3390/ijms241411754] [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: 06/13/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/30/2023] Open
Abstract
Mesenchymal stem cell (MSC)-seeded polymeric perivascular wraps have been shown to enhance arteriovenous fistula (AVF) maturation. However, the wraps' radiolucency makes their placement and integrity difficult to monitor. Through electrospinning, we infused gold nanoparticles (AuNPs) into polycaprolactone (PCL) wraps to improve their radiopacity and tested whether infusion affects the previously reported beneficial effects of the wraps on the AVF's outflow vein. Sprague Dawley rat MSCs were seeded on the surface of the wraps. We then compared the effects of five AVF treatments-no perivascular wrap (i.e., control), PCL wrap, PCL + MSC wrap, PCL-Au wrap, and PCL-Au + MSC wrap-on AVF maturation in a Sprague Dawley rat model of chronic kidney disease (n = 3 per group). Via micro-CT, AuNP-infused wraps demonstrated a significantly higher radiopacity compared to that of the wraps without AuNPs. Wraps with and without AuNPs equally reduced vascular stenoses, as seen via ultrasonography and histomorphometry. In the immunofluorescence analysis, representative MSC-seeded wraps demonstrated reduced neointimal staining for markers of infiltration with smooth muscle cells (α-SMA), inflammatory cells (CD45), and fibroblasts (vimentin) compared to that of the control and wraps without MSCs. In conclusion, AuNP infusion allows in vivo monitoring via micro-CT of MSC-seeded polymeric wraps over time, without compromising the benefits of the wrap for AVF maturation.
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Affiliation(s)
- Allan John R Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Joy Vanessa D Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Jossana A Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marvin R Bernardino
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- School of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- School of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Andrea Cortes
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Huckie C Del Mundo
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Francisco M Heralde
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Rony Avritscher
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Richard R Bouchard
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jizhong Cheng
- Section of Nephrology, Department of Medicine, Selzman Institute for Kidney Health, Baylor College of Medicine, Houston, TX 77030, USA
| | - Steven Y Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marites P Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX 77030, USA
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San Valentin EM, Damasco JA, Bernardino M, Court KA, Godin B, Canlas GM, Melancon A, Chintalapani G, Jacobsen MC, Norton W, Layman RR, Fowlkes N, Chen SR, Huang SY, Melancon MP. Image-guided deployment and monitoring of a novel tungsten nanoparticleâ€"infused radiopaque absorbable inferior vena cava filter in pigs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.06.527049. [PMID: 36798362 PMCID: PMC9934538 DOI: 10.1101/2023.02.06.527049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The use of absorbable inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) eliminates risks and complications associated with the use of retrievable metallic filters. Radiopacity of radiolucent PPDO IVCFs can be improved with the incorporation of nanoparticles (NPs) made of high-atomic number materials such as gold and bismuth. In this study, we focused on incorporating tungsten NPs (WNPs), along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of the WNPs. We compared the imaging properties of WNPs with single-polymer PHB (W-P) and WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB). Our in vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the inherent physico-mechanical properties of the PPDO sutures. We observed a more sustained release of WNPs from W-PB-coated sutures than W-P-coated sutures. We successfully deployed W-P- and W-PB-coated IVCFs into the inferior vena cava of pig models, with monitoring by fluoroscopy. At the time of deployment, W-PB-coated IVCFs showed a 2-fold increase in radiopacity compared to W-P-coated IVCFs. Longitudinal monitoring of in vivo IVCFs over a 12-week period showed a drastic decrease in radiopacity at week 3 for both filters. Results of this study highlight the utility of NPs and polymers for enhancing radiopacity of medical devices; however, different methods of incorporating NPs and polymers can still be explored to improve the efficacy, safety, and quality of absorbable IVCFs.
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Barcena AJR, Perez JVD, Damasco JA, Bernardino MR, San Valentin EMD, Klusman C, Martin B, Cortes A, Canlas G, Del Mundo HC, Heralde FM, Avritscher R, Fowlkes N, Bouchard RR, Cheng J, Huang SY, Melancon MP. Gold Nanoparticles for Monitoring of Mesenchymal Stem Cell-Loaded Bioresorbable Polymeric Wraps for Arteriovenous Fistulas. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.01.526611. [PMID: 36778466 PMCID: PMC9915579 DOI: 10.1101/2023.02.01.526611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Background To address high rates of arteriovenous fistula (AVF) failure, a mesenchymal stem cell (MSC)-seeded polymeric perivascular wrap has been developed to reduce neointimal hyperplasia (NIH) and enhance AVF maturation in a rat model. However, the wrap's radiolucency makes its placement and integrity difficult to monitor. Purpose In this study, we infused gold nanoparticles (AuNPs) into the polymeric perivascular wrap to improve its radiopacity and tested the effect of infusion on the previously reported beneficial effects of the polymeric wrap on the AVF outflow vein. Materials and Methods We fabricated a polymeric perivascular wrap made of polycaprolactone (PCL) infused with AuNPs via electrospinning. Sprague-Dawley rat mesenchymal stem cells (MSCs) were seeded on the surface of the wraps. We then compared the effect of five AVF treatments-no perivascular wrap (i.e., control), PCL wrap, PCL+MSC wrap, PCL-Au wrap, and PCL-Au+MSC wrap-on AVF maturation in a Sprague-Dawley rat model of chronic kidney disease (n=3 per group). Statistical significance was defined as p<.05, and one-way analysis of variance was performed using GraphPad Prism software. Results On micro-CT, AuNP-infused wraps demonstrated significantly higher radiopacity compared to wraps without AuNPs. On ultrasonography, wraps with and without AuNPs equally reduced the wall-to-lumen ratio of the outflow vein, a marker of vascular stenosis. On histomorphometric analysis, wraps with and without AuNPs equally reduced the neointima-to- lumen ratio of the outflow vein, a measure of NIH. On immunofluorescence analysis, representative MSC-seeded wraps demonstrated reduced neointimal staining for markers of smooth muscle cells (α-SMA), inflammatory cells (CD45), and fibroblasts (vimentin) infiltration when compared to control and wraps without MSCs. Conclusion Gold nanoparticle infusion allows the in vivo monitoring via micro-CT of a mesenchymal stem cell-seeded polymeric wrap over time without compromising the benefits of the wrap on arteriovenous fistula maturation. Summary Statement Gold nanoparticle infusion enables in vivo monitoring via micro-CT of the placement and integrity over time of mesenchymal stem cell-seeded polymeric wrap supporting arteriovenous fistula maturation. Key Results Gold nanoparticle (AuNP)-infused perivascular wraps demonstrated higher radiopacity on micro-CT compared with wraps without AuNPs after 8 weeks.AuNP-infused perivascular wraps equally improved the wall-to-lumen ratio of the outflow vein (a marker of vascular stenosis) when compared with wraps without AuNPs, as seen on US.AuNP-infused perivascular wraps equally reduced the neointima-to-lumen ratio of the outflow vein (a measure of neointimal hyperplasia) when compared with wraps without AuNPs, as seen on histomorphometry.
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Gu C, Wang Z, Pan Y, Zhu S, Gu Z. Tungsten-based Nanomaterials in the Biomedical Field: A Bibliometric Analysis of Research Progress and Prospects. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2204397. [PMID: 35906814 DOI: 10.1002/adma.202204397] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/17/2022] [Indexed: 06/15/2023]
Abstract
Tungsten-based nanomaterials (TNMs) with diverse nanostructures and unique physicochemical properties have been widely applied in the biomedical field. Although various reviews have described the application of TNMs in specific biomedical fields, there are still no comprehensive studies that summarize and analyze research trends of the field as a whole. To identify and further promote the development of biomedical TNMs, a bibliometric analysis method is used to analyze all relevant literature on this topic. First, general bibliometric distributions of the dataset by year, country, institute, referenced source, and research hotspots are recognized. Next, a comprehensive review of the subjectively recognized research hotspots in various biomedical fields, including biological sensing, anticancer treatments, antibacterials, and toxicity evaluation, is provided. Finally, the prospects and challenges of TNMs are discussed to provide a new perspective for further promoting their development in biomedical research.
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Affiliation(s)
- Chenglu Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing, 100049, China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiqiang Wang
- School of Science, China University of Geosciences, Beijing, 100049, China
| | - Yawen Pan
- School of Science, China University of Geosciences, Beijing, 100049, China
| | - Shuang Zhu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing, 100049, China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhanjun Gu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Beijing, 100049, China
- Center of Materials Science and Optoelectronics Engineering, College of Materials Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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11
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San Valentin EMD, Barcena AJR, Klusman C, Martin B, Melancon MP. Nano-embedded medical devices and delivery systems in interventional radiology. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1841. [PMID: 35946543 PMCID: PMC9840652 DOI: 10.1002/wnan.1841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/01/2022] [Accepted: 07/12/2022] [Indexed: 01/31/2023]
Abstract
Nanomaterials research has significantly accelerated the development of the field of vascular and interventional radiology. The incorporation of nanoparticles with unique and functional properties into medical devices and delivery systems has paved the way for the creation of novel diagnostic and therapeutic procedures for various clinical disorders. In this review, we discuss the advancements in the field of interventional radiology and the role of nanotechnology in maximizing the benefits and mitigating the disadvantages of interventional radiology theranostic procedures. Several nanomaterials have been studied to improve the efficacy of interventional radiology interventions, reduce the complications associated with medical devices, improve the accuracy and efficiency of drug delivery systems, and develop innovative imaging modalities. Here, we summarize the recent progress in the development of medical devices and delivery systems that link nanotechnology in vascular and interventional radiology. This article is categorized under: Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease.
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Affiliation(s)
- Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- St. Luke's Medical Center College of Medicine-William H. Quasha Memorial, Quezon City, Philippines
| | | | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Marites P Melancon
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
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12
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He L, Yu X, Li W. Recent Progress and Trends in X-ray-Induced Photodynamic Therapy with Low Radiation Doses. ACS NANO 2022; 16:19691-19721. [PMID: 36378555 DOI: 10.1021/acsnano.2c07286] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The prominence of photodynamic therapy (PDT) in treating superficial skin cancer inspires innovative solutions for its congenitally deficient shadow penetration of the visible-light excitation. X-ray-induced photodynamic therapy (X-PDT) has been proven to be a successful technique in reforming the conventional PDT for deep-seated tumors by creatively utilizing penetrating X-rays as external excitation sources and has witnessed rapid developments over the past several years. Beyond the proof-of-concept demonstration, recent advances in X-PDT have exhibited a trend of minimizing X-ray radiation doses to quite low values. As such, scintillating materials used to bridge X-rays and photosensitizers play a significant role, as do diverse well-designed irradiation modes and smart strategies for improving the tumor microenvironment. Here in this review, we provide a comprehensive summary of recent achievements in X-PDT and highlight trending efforts using low doses of X-ray radiation. We first describe the concept of X-PDT and its relationships with radiodynamic therapy and radiotherapy and then dissect the mechanism of X-ray absorption and conversion by scintillating materials, reactive oxygen species evaluation for X-PDT, and radiation side effects and clinical concerns on X-ray radiation. Finally, we discuss a detailed overview of recent progress regarding low-dose X-PDT and present perspectives on possible clinical translation. It is expected that the pursuit of low-dose X-PDT will facilitate significant breakthroughs, both fundamentally and clinically, for effective deep-seated cancer treatment in the near future.
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13
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He J, Wang Z, Zhou YX, Ni H, Sun X, Xue J, Chen S, Wang S, Niu M. The application of inferior vena cava filters in orthopaedics and current research advances. Front Bioeng Biotechnol 2022; 10:1045220. [PMID: 36479430 PMCID: PMC9719953 DOI: 10.3389/fbioe.2022.1045220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/07/2022] [Indexed: 11/19/2023] Open
Abstract
Deep vein thrombosis is a common clinical peripheral vascular disease that occurs frequently in orthopaedic patients and may lead to pulmonary embolism (PE) if the thrombus is dislodged. pulmonary embolism can be prevented by placing an inferior vena cava filter (IVCF) to intercept the dislodged thrombus. Thus, IVCFs play an important role in orthopaedics. However, the occurrence of complications after inferior vena cava filter placement, particularly recurrent thromboembolism, makes it necessary to carefully assess the risk-benefit of filter placement. There is no accepted statement as to whether IVCF should be placed in orthopaedic patients. Based on the problems currently displayed in the use of IVCFs, an ideal IVCF is proposed that does not affect the vessel wall and haemodynamics and intercepts thrombi well. The biodegradable filters that currently exist come close to the description of an ideal filter that can reduce the occurrence of various complications. Currently available biodegradable IVCFs consist of various organic polymeric materials. Biodegradable metals have shown good performance in making biodegradable IVCFs. However, among the available experimental studies on degradable filters, there are no experimental studies on filters made of degradable metals. This article reviews the use of IVCFs in orthopaedics, the current status of filters and the progress of research into biodegradable vena cava filters and suggests possible future developments based on the published literature by an electronic search of PubMed and Medline databases for articles related to IVCFs searchable by October 2022 and a manual search for citations to relevant studies.
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Affiliation(s)
| | | | | | - Hongbo Ni
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - XiaoHanu Sun
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jian Xue
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shanshan Chen
- Institute of Metal Research, Chinese Academy of Sciences (CAS), Shenyang, Liaoning, China
| | - Shuai Wang
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Meng Niu
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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14
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Barcena AJR, Perez JVD, Liu O, Mu A, Heralde FM, Huang SY, Melancon MP. Localized Perivascular Therapeutic Approaches to Inhibit Venous Neointimal Hyperplasia in Arteriovenous Fistula Access for Hemodialysis Use. Biomolecules 2022; 12:biom12101367. [PMID: 36291576 PMCID: PMC9599524 DOI: 10.3390/biom12101367] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/23/2022] [Indexed: 01/14/2023] Open
Abstract
An arteriovenous fistula (AVF) is the preferred vascular access for chronic hemodialysis, but high failure rates restrict its use. Optimizing patients' perioperative status and the surgical technique, among other methods for preventing primary AVF failure, continue to fall short in lowering failure rates in clinical practice. One of the predominant causes of AVF failure is neointimal hyperplasia (NIH), a process that results from the synergistic effects of inflammation, hypoxia, and hemodynamic shear stress on vascular tissue. Although several systemic therapies have aimed at suppressing NIH, none has shown a clear benefit towards this goal. Localized therapeutic approaches may improve rates of AVF maturation by providing direct structural and functional support to the maturating fistula, as well as by delivering higher doses of pharmacologic agents while avoiding the adverse effects associated with systemic administration of therapeutic agents. Novel materials-such as polymeric scaffolds and nanoparticles-have enabled the development of different perivascular therapies, such as supportive mechanical devices, targeted drug delivery, and cell-based therapeutics. In this review, we summarize various perivascular therapeutic approaches, available data on their effectiveness, and the outlook for localized therapies targeting NIH in the setting of AVF for hemodialysis use. Highlights: Most systemic therapies do not improve AVF patency outcomes; therefore, localized therapeutic approaches may be beneficial. Locally delivered drugs and medical devices may improve AVF patency outcomes by providing biological and mechanical support. Cell-based therapies have shown promise in suppressing NIH by delivering a more extensive array of bioactive substances in response to the biochemical changes in the AVF microenvironment.
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Affiliation(s)
- Allan John R. Barcena
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Joy Vanessa D. Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Olivia Liu
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Grossman School of Medicine, New York University, New York, NY 10016, USA
| | - Amy Mu
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- The University of Texas Southwestern Medical School, Dallas, TX 75390, USA
| | - Francisco M. Heralde
- College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
| | - Steven Y. Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marites P. Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX 77030, USA
- Correspondence:
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15
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Damasco JA, Huang SY, Perez JVD, Manongdo JAT, Dixon KA, Williams ML, Jacobsen MC, Barbosa R, Canlas GM, Chintalapani G, Melancon AD, Layman RR, Fowlkes NW, Whitley EM, Melancon MP. Bismuth Nanoparticle and Polyhydroxybutyrate Coatings Enhance the Radiopacity of Absorbable Inferior Vena Cava Filters for Fluoroscopy-Guided Placement and Longitudinal Computed Tomography Monitoring in Pigs. ACS Biomater Sci Eng 2022; 8:1676-1685. [PMID: 35343679 PMCID: PMC9045416 DOI: 10.1021/acsbiomaterials.1c01449] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) are promising alternatives to metallic filters and their associated risks and complications. Incorporating high-Z nanoparticles (NPs) improves PPDO IVCFs' radiopacity without adversely affecting their safety or performance. However, increased radiopacity from these studies are insufficient for filter visualization during fluoroscopy-guided PPDO IVCF deployment. This study focuses on the use of bismuth nanoparticles (BiNPs) as radiopacifiers to render sufficient signal intensity for the fluoroscopy-guided deployment and long-term CT monitoring of PPDO IVCFs. The use of polyhydroxybutyate (PHB) as an additional layer to increase the surface adsorption of NPs resulted in a 2-fold increase in BiNP coating (BiNP-PPDO IVCFs, 3.8%; BiNP-PPDO + PHB IVCFs, 6.2%), enabling complete filter visualization during fluoroscopy-guided IVCF deployment and, 1 week later, clot deployment. The biocompatibility, clot-trapping efficacy, and mechanical strength of the control PPDO (load-at-break, 6.23 ± 0.13 kg), BiNP-PPDO (6.10 ± 0.09 kg), and BiNP-PPDO + PHB (6.15 ± 0.13 kg) IVCFs did not differ significantly over a 12-week monitoring period in pigs. These results indicate that BiNP-PPDO + PHB can increase the radiodensity of a novel absorbable IVCF without compromising device strength. Visualizing the device under conventional radiographic imaging is key to allow safe and effective clinical translation of the device.
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Affiliation(s)
- Jossana A Damasco
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Steven Y Huang
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Joy Vanessa D Perez
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | - Katherine A Dixon
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Malea L Williams
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Megan C Jacobsen
- Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Roland Barbosa
- Covalent Metrology Sunnyvale, Sunnyvale, California 94085, United States
| | - Gino Martin Canlas
- Department of Chemistry, Lamar University, Beaumont, Texas 77710, United States
| | | | - Adam D Melancon
- Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Rick R Layman
- Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Natalie W Fowlkes
- Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Elizabeth M Whitley
- Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Marites P Melancon
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- UT Health Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
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Broad-Spectrum Theranostics and Biomedical Application of Functionalized Nanomaterials. Polymers (Basel) 2022; 14:polym14061221. [PMID: 35335551 PMCID: PMC8956086 DOI: 10.3390/polym14061221] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/06/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology is an important branch of science in therapies known as “nanomedicine” and is the junction of various fields such as material science, chemistry, biology, physics, and optics. Nanomaterials are in the range between 1 and 100 nm in size and provide a large surface area to volume ratio; thus, they can be used for various diseases, including cardiovascular diseases, cancer, bacterial infections, and diabetes. Nanoparticles play a crucial role in therapy as they can enhance the accumulation and release of pharmacological agents, improve targeted delivery and ultimately decrease the intensity of drug side effects. In this review, we discussthe types of nanomaterials that have various biomedical applications. Biomolecules that are often conjugated with nanoparticles are proteins, peptides, DNA, and lipids, which can enhance biocompatibility, stability, and solubility. In this review, we focus on bioconjugation and nanoparticles and also discuss different types of nanoparticles including micelles, liposomes, carbon nanotubes, nanospheres, dendrimers, quantum dots, and metallic nanoparticles and their crucial role in various diseases and clinical applications. Additionally, we review the use of nanomaterials for bio-imaging, drug delivery, biosensing tissue engineering, medical devices, and immunoassays. Understandingthe characteristics and properties of nanoparticles and their interactions with the biological system can help us to develop novel strategies for the treatment, prevention, and diagnosis of many diseases including cancer, pulmonary diseases, etc. In this present review, the importance of various kinds of nanoparticles and their biomedical applications are discussed in much detail.
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Investigating new CT contrast agents: a phantom study exploring quantification and differentiation methods for high-Z elements using dual-energy CT. Eur Radiol 2021; 31:8060-8067. [PMID: 33856524 DOI: 10.1007/s00330-021-07886-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 03/05/2021] [Accepted: 03/15/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVES To develop a dual-energy CT method for differentiating and quantifying high-Z contrast elements and to evaluate the limitations based on element concentration and atomic number by using an anthropomorphic phantom study. METHODS Mass spectrometry standards for iodine, barium, gadolinium, ytterbium, tantalum, gold, and bismuth were diluted from 10.0 to 0.3 mg/mL, placed inside 7-mL vials, and scanned with dual-energy CT using an abdominal phantom and cylindrical water-filled insert. This procedure was repeated with all seven high-Z elements at six isoattenuating values from 250 to 8 HU. Quantification accuracy was measured using a linear regression model and residual error analysis with 90% limits of agreement. The limit of detection for each element was evaluated using the limit of blank of water. Pairwise differentiation of isoattenuating vials was evaluated using AUC values and the difference in fit angles between the two elements. RESULTS Each high-Z element had a unique concentration vector in a two-dimensional plot of Compton scattering versus photoelectric effect attenuations. Mean quantification values were within ± 0.1 mg/mL of the true values for each element with no proportional bias. Limits of detection ranged from 0.35 to 0.56 mg/mL. Pairwise differentiations were proportional to the isoattenuating HU and the angle between the linear fits with mean AUC values increasing from 0.61 to 0.98 at 8 to 250 HU, respectively. CONCLUSION Dual-energy CT can differentiate and quantify isoattenuating high-Z elements. The high-attenuation characteristics and unique concentration vectors of ytterbium, tantalum, gold, and bismuth are well suited for new dual-energy CT contrast agents especially when simultaneously imaged with iodine, barium, or gadolinium. KEY POINTS • Dual-energy CT can accurately quantify high-Z contrast elements and readily differentiate iodine, barium, and gadolinium from ytterbium, tantalum, gold, and bismuth. • The differentiation and quantification capabilities for high-Z contrast elements are largely unaffected by phantom size and transaxial location within the phantom. • Potential benefits of new CT contrast agents based on these high-Z elements include alternatives for patients with iodine sensitivity, high conspicuity at both 120 and 140 kVp, simultaneous imaging of two contrast agents, and reduced injection volume.
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