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Richfield O, Piotrowski-Daspit AS, Shin K, Saltzman WM. Rational nanoparticle design: Optimization using insights from experiments and mathematical models. J Control Release 2023; 360:772-783. [PMID: 37442201 PMCID: PMC10529591 DOI: 10.1016/j.jconrel.2023.07.018] [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: 03/15/2023] [Revised: 06/22/2023] [Accepted: 07/08/2023] [Indexed: 07/15/2023]
Abstract
Polymeric nanoparticles are highly tunable drug delivery systems that show promise in targeting therapeutics to specific sites within the body. Rational nanoparticle design can make use of mathematical models to organize and extend experimental data, allowing for optimization of nanoparticles for particular drug delivery applications. While rational nanoparticle design is attractive from the standpoint of improving therapy and reducing unnecessary experiments, it has yet to be fully realized. The difficulty lies in the complexity of nanoparticle structure and behavior, which is added to the complexity of the physiological mechanisms involved in nanoparticle distribution throughout the body. In this review, we discuss the most important aspects of rational design of polymeric nanoparticles. Ultimately, we conclude that many experimental datasets are required to fully model polymeric nanoparticle behavior at multiple scales. Further, we suggest ways to consider the limitations and uncertainty of experimental data in creating nanoparticle design optimization schema, which we call quantitative nanoparticle design frameworks.
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Affiliation(s)
- Owen Richfield
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | | | - Kwangsoo Shin
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT 06511, USA; Department of Cellular & Molecular Physiology, Yale University, New Haven, CT 06511, USA; Department of Chemical & Environmental Engineering, Yale University, New Haven, CT 06511, USA; Department of Dermatology, Yale University, New Haven, CT 06511, USA.
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2
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Barth CW, Shah VM, Wang LG, Masillati AM, Al-Fatease A, Husain Rizvi SZ, Antaris AL, Sorger J, Rao DA, Alani AWG, Gibbs SL. A clinically relevant formulation for direct administration of nerve specific fluorophores to mitigate iatrogenic nerve injury. Biomaterials 2022; 284:121490. [PMID: 35395454 PMCID: PMC9064958 DOI: 10.1016/j.biomaterials.2022.121490] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/08/2022] [Accepted: 03/25/2022] [Indexed: 11/02/2022]
Abstract
Iatrogenic nerve injury significantly affects surgical outcomes. Although intraoperative neuromonitoring is utilized, nerve identification remains challenging and the success of nerve sparing is strongly correlated with surgeon experience levels. Fluorescence guided surgery (FGS) offers a potential solution for improved nerve sparing by providing direct visualization of nerve tissue intraoperatively. However, novel probes for FGS face a long regulatory pathway to achieve clinical translation. Herein, we report on the development of a clinically-viable, gel-based formulation that enables direct administration of nerve-specific probes for nerve sparing FGS applications, facilitating clinical translation via the exploratory investigational new drug (eIND) guidance. The developed formulation possesses unique gelling characteristics, allowing it to be easily spread as a liquid followed by rapid gelling for subsequent tissue hold. Optimization of the direct administration protocol with our gel-based formulation enabled a total staining time of 1-2 min for compatibility with surgical procedures and successful clinical translation.
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Affiliation(s)
- Connor W Barth
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Vidhi M Shah
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | - Lei G Wang
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Anas M Masillati
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Adel Al-Fatease
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA; Department of Phamaceutics, College of Pharmacy, 62529, King Khalid University, Abha, Saudi Arabia
| | - Syed Zaki Husain Rizvi
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | | | - Jonathan Sorger
- Intuitive Surgical, 1020 Kifer Road, Sunnyvale, CA, 94086, USA
| | - Deepa A Rao
- School of Pharmacy, Pacific University, Hillsboro, OR, 97123, USA
| | - Adam W G Alani
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR, 97201, USA; Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97201, USA; Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, 97201, USA
| | - Summer L Gibbs
- Biomedical Engineering Department, Oregon Health & Science University, Portland, OR, 97201, USA; Knight Cancer Institute, Oregon Health & Science University, Portland, OR, 97201, USA.
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Gamage R, Li DH, Schreiber CL, Smith BD. Comparison of cRGDfK Peptide Probes with Appended Shielded Heptamethine Cyanine Dye ( s775z) for Near Infrared Fluorescence Imaging of Cancer. ACS OMEGA 2021; 6:30130-30139. [PMID: 34778684 PMCID: PMC8582267 DOI: 10.1021/acsomega.1c04991] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/21/2021] [Indexed: 05/14/2023]
Abstract
Previous work has shown that the sterically shielded near-infrared (NIR) fluorescent heptamethine cyanine dye, s775z, with a reactive carboxyl group produces fluorescent bioconjugates with an unsurpassed combination of high photostability and fluorescence brightness. This present contribution reports two new reactive homologues of s775z with either a maleimide group for reaction with a thiol or a strained alkyne group for reaction with an azide. Three cancer-targeting NIR fluorescent probes were synthesized, each with an appended cRGDfK peptide to provide selective affinity for integrin receptors that are overexpressed on the surface of many cancer cells including the A549 lung adenocarcinoma cells used in this study. A set of cancer cell microscopy and mouse tumor imaging experiments showed that all three probes were very effective at targeting cancer cells and tumors; however, the change in the linker structure produced a statistically significant difference in some aspects of the mouse biodistribution. The mouse studies included a mock surgical procedure that excised the subcutaneous tumors. A paired-agent fluorescence imaging experiment co-injected a binary mixture of targeted probe with 850 nm emission, an untargeted probe with 710 nm emission and determined the targeted probe's binding potential in the tumor tissue. A comparison of pixelated maps of binding potential for each excised tumor indicated a tumor-to-tumor variation of integrin expression levels, and a heterogeneous spatial distribution of integrin receptors within each tumor.
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Affiliation(s)
- Rananjaya
S. Gamage
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556-5670, United States
| | - Dong-Hao Li
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556-5670, United States
| | - Cynthia L. Schreiber
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556-5670, United States
| | - Bradley D. Smith
- Department of Chemistry and Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556-5670, United States
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Byrd BK, Strawbridge RS, Wells W, Barth C, Gibbs S, Davis SC. A method for validating depth-resolved biodistributions in topically-stained specimen with multi-channel fluorescence cryo-imaging. PROCEEDINGS OF SPIE--THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING 2021; 11625. [PMID: 34475612 DOI: 10.1117/12.2582542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Fluorescent contrast agents targeted to cancer biomarkers are increasingly being explored for cancer detection, surgical guidance, and response monitoring. Efforts have been underway to topically apply such biomarker-targeted agents to freshly excised specimen for detecting cancer cell receptors on the surface as a method for intraoperative surgical margin assessment, including dual-probe staining methods introduce a second 'non-specific' optical agent as a control to help compensate for heterogeneous uptake and normalize the imaging field. Still, such specimen staining protocols introduce multifaceted complexity with unknown variables, such as tissue-specific diffusion, cell-specific binding and disassociation rates, and other factors, affecting the interpreted cancer-biomarker distribution across the specimen surface. The ability to recover three-dimensional dual-probe biodistributions throughout whole-specimens could offer a ground-truth validation method for examining topical staining uptake behaviors. Herein, we report on a novel method for characterizing dual-probe accumulation with 3D depth-profiles observed from a dual-probe fresh-specimen staining experiment.
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Affiliation(s)
- Brook K Byrd
- Dartmouth College, Thayer School of Engineering, Hanover, NH, 03755
| | | | - Wendy Wells
- Dartmouth Hitchcock Medical Center, Department of Surgery, Lebanon, NH, 03766
| | - Connor Barth
- Oregon Heath and Sciences University, Portland, OR, 97239
| | - Summer Gibbs
- Oregon Heath and Sciences University, Portland, OR, 97239
| | - Scott C Davis
- Dartmouth College, Thayer School of Engineering, Hanover, NH, 03755
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Meng B, Folaron MR, Byrd BK, Samkoe KS, Strawbridge RS, Barth C, Gibbs SL, Davis SC. Topical dual-probe staining using quantum dot-labeled antibodies for identifying tumor biomarkers in fresh specimens. PLoS One 2020; 15:e0230267. [PMID: 32160634 PMCID: PMC7065915 DOI: 10.1371/journal.pone.0230267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/25/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose Rapid, intra-operative identification of tumor tissue in the margins of excised specimens has become an important focus in the pursuit of reducing re-excision rates, especially for breast conserving surgery. Dual-probe difference specimen imaging (DDSI) is an emerging approach that uses the difference in uptake/clearance kinetics between a pair of fluorescently-labeled stains, one targeted to a biomarker-of-interest and the other an untargeted isotype, to reveal receptor-specific images of the specimen. Previous studies using antibodies labeled with either enhanced Raman particles or organic fluorophores have shown promising tumor vs. normal diagnostic performance. Yet, the unique properties of quantum dot-labeled antibody complexes (QDACs), which provide spectrally-distinct fluorescence emission from a common excitation source, make them ideal candidates for this application. Herein, we evaluate the diagnostic performance of QDAC-based DDSI in excised xenografts. Procedures Excised fresh specimens of normal tissue and human tumor xenografts with elevated expression of HER2 were stained with a HER2-targeted QDAC and an untargeted QDAC isotype. Stained specimens were imaged on a custom hyperspectral imaging system capable of spectrally separating the quantum dot signatures, and images processed using the DDSI approach. The diagnostic performance of this technique under different incubation temperatures and probe concentrations was evaluated using receiver-operator characteristic analysis. Results HER2-targeted QDAC-DDSI was able to distinguish HER2(+) tumors from normal tissue with reasonably high diagnostic performance; however, this performance was sensitive to temperature during the staining procedure. Area under the curve values were 0.61 when staining at room temperature but increased to over 0.81 when staining at 37 °C. Diagnostic performance was not affected by increasing stain concentration. Conclusions This study is the first to report dual-probe difference imaging of specimens using QDACs and hyperspectral imaging. Our results show promising diagnostic performance under certain conditions, and compel further optimization and evaluation of this intra-operative margin assessment technique.
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Affiliation(s)
- Boyu Meng
- Thayer School of Engineering at Dartmouth College, Hanover, New Hampshire, United States of America
| | - Margaret R. Folaron
- Thayer School of Engineering at Dartmouth College, Hanover, New Hampshire, United States of America
| | - Brook K. Byrd
- Thayer School of Engineering at Dartmouth College, Hanover, New Hampshire, United States of America
| | - Kimberley S. Samkoe
- Geisel School of Medicine at Dartmouth College, Hanover, New Hampshire, United States of America
- Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States of America
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States of America
| | - Rendall S. Strawbridge
- Thayer School of Engineering at Dartmouth College, Hanover, New Hampshire, United States of America
| | - Connor Barth
- Biomedical Engineering Department, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Summer L. Gibbs
- Biomedical Engineering Department, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Scott C. Davis
- Thayer School of Engineering at Dartmouth College, Hanover, New Hampshire, United States of America
- Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States of America
- * E-mail:
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Torelli MD, Nunn NA, Shenderova OA. A Perspective on Fluorescent Nanodiamond Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902151. [PMID: 31215753 PMCID: PMC6881523 DOI: 10.1002/smll.201902151] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/03/2019] [Indexed: 05/28/2023]
Abstract
The field of fluorescent nanodiamonds (FNDs) has advanced greatly over the past few years. Though historically limited primarily to red fluorescence, the wavelengths available for nanodiamonds have increased due to continuous technical advancement. This Review summarizes the strides made in the synthesis, functionalization, and application of FNDs to bioimaging. Highlights range from super-resolution microscopy, through cellular and whole animal imaging, up to constantly emerging fields including sensing and hyperpolarized magnetic resonance imaging.
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Affiliation(s)
- Marco D. Torelli
- Adámas Nanotechnologies, Inc., 8100 Brownleigh Dr, Suite 120, Raleigh, NC 27617
| | - Nicholas A. Nunn
- Adámas Nanotechnologies, Inc., 8100 Brownleigh Dr, Suite 120, Raleigh, NC 27617
| | - Olga A. Shenderova
- Adámas Nanotechnologies, Inc., 8100 Brownleigh Dr, Suite 120, Raleigh, NC 27617
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