1
|
Lin L, Schneiderman Z, Venkatraman A, Kokkoli E. Formation of ssDNA nanotubes from spherical micelles and their use as a delivery vehicle for chemotherapeutics and senolytics to triple negative breast cancer cells. Nanoscale 2023. [PMID: 37200016 DOI: 10.1039/d3nr00196b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
With its lack of commonly targeted receptors, triple negative breast cancer (TNBC) is aggressive and difficult to treat. To address this problem, nanotubes self-assembled from single stranded DNA (ssDNA)-amphiphiles were used as a delivery vehicle for doxorubicin (DOX) to target TNBC cells. Since DOX and other standard of care treatments such as radiation have been documented to induce senescence, the ability of the nanotubes to deliver the senolytic ABT-263 was also investigated. The ssDNA-amphiphiles were synthesized from a 10 nucleotide sequence attached to a dialkyl, (C16)2, tail via a C12 alkyl spacer, and have been previously shown to self-assemble into hollow nanotubes and spherical micelles. Here, we demontrate that these ssDNA spherical micelles could transition into long nanotubes in the presence of excess tails. The nanotubes could then be shortened via probe sonication. The ssDNA nanotubes internalized into three different TNBC cell lines: Sum159, MDA-MB-231, and BT549, with minimal internalization in healthy Hs578Bst cells, suggesting an inherent targeting ability. Inhibition of different internalization mechanisms showed that the nanotubes internalized in the TNBC cells primarily through macropinocytosis and scavenger receptor-mediated endocytosis, both of which are upregulated pathways in TNBC. DOX was intercalated into the ssDNA nanotubes and delivered to TNBC cells. Compared to free DOX, DOX-intercalated nanotubes proved equally cytotoxic to TNBC cells. In order to demonstrate the potential for delivery of different therapeutics, ABT-263 was incorporated into the hydrophobic bilayer wall of the nanotubes and was delivered to a DOX-induced in vitro model of senescence. The ABT-263 encapsulating nanotubes demonstrated cytotoxicity to senescent TNBC cells as well as sensitization to further DOX treatment. Thus, our ssDNA nanotubes are a promising delivery vehicle that could be used for targeted delivery of therapeutics to TNBC cells.
Collapse
Affiliation(s)
- Lucy Lin
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zachary Schneiderman
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Aditya Venkatraman
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Efrosini Kokkoli
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| |
Collapse
|
2
|
Li S, Hu Y, Li A, Lin J, Hsieh K, Schneiderman Z, Zhang P, Zhu Y, Qiu C, Kokkoli E, Wang TH, Mao HQ. Payload distribution and capacity of mRNA lipid nanoparticles. Nat Commun 2022; 13:5561. [PMID: 36151112 PMCID: PMC9508184 DOI: 10.1038/s41467-022-33157-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 09/05/2022] [Indexed: 11/21/2022] Open
Abstract
Lipid nanoparticles (LNPs) are effective vehicles to deliver mRNA vaccines and therapeutics. It has been challenging to assess mRNA packaging characteristics in LNPs, including payload distribution and capacity, which are critical to understanding structure-property-function relationships for further carrier development. Here, we report a method based on the multi-laser cylindrical illumination confocal spectroscopy (CICS) technique to examine mRNA and lipid contents in LNP formulations at the single-nanoparticle level. By differentiating unencapsulated mRNAs, empty LNPs and mRNA-loaded LNPs via coincidence analysis of fluorescent tags on different LNP components, and quantitatively resolving single-mRNA fluorescence, we reveal that a commonly referenced benchmark formulation using DLin-MC3 as the ionizable lipid contains mostly 2 mRNAs per loaded LNP with a presence of 40%–80% empty LNPs depending on the assembly conditions. Systematic analysis of different formulations with control variables reveals a kinetically controlled assembly mechanism that governs the payload distribution and capacity in LNPs. These results form the foundation for a holistic understanding of the molecular assembly of mRNA LNPs. Lipid nanoparticles (LNPs) are effective vehicles to deliver mRNA vaccines and therapeutics but assessing the mRNA packaging characteristics in LNPs is challenging. Here, the authors report that mRNA and lipid contents in LNP formulations can be quantitatively examined by multi-laser cylindrical illumination confocal spectroscopy at the single-nanoparticle level.
Collapse
Affiliation(s)
- Sixuan Li
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Yizong Hu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA. .,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Andrew Li
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jinghan Lin
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kuangwen Hsieh
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Zachary Schneiderman
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Pengfei Zhang
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yining Zhu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Chenhu Qiu
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Efrosini Kokkoli
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Tza-Huei Wang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA. .,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA. .,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Hai-Quan Mao
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA. .,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA.
| |
Collapse
|
3
|
Kuang H, Wang D, Schneiderman Z, Tsapatsis M, Kokkoli E. Supramolecular Assembly of Single-Tail ssDNA-Amphiphiles through π-π Interactions. Bioconjug Chem 2022; 33:2035-2040. [PMID: 35699360 DOI: 10.1021/acs.bioconjchem.2c00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we demonstrate the formation of supramolecular architectures from the assembly of single-tail single stranded DNA (ssDNA)-amphiphiles. Short ssDNA sequences of 10 nucleotides that were either unstructured or formed G-quadruplex secondary structures were conjugated to a single 4-(hexadecyloxy)benzamide tail, either directly or through a polycarbon (C12) spacer. Conjugation of the ssDNA to the tail did not interfere with the G-quadruplex secondary structure of the ssDNA sequence. The ssDNA-amphiphiles self-assembled into ellipsoidal micelles, vesicles, nanotapes, and nanotubes. These nanotubes appeared to be formed by the rolling up of nanotapes. The increase of the hydrophobic block of the ssDNA-amphiphiles through the addition of a C12 spacer led to an increase in wall thickness and nanotube diameter. The presence of π-π interactions, through the benzoic group, was verified via X-ray diffraction (XRD) and played a critical role in the formation of the different nanostructures. In contrast, ssDNA-amphiphiles with a single heptadecanoic acid tail self-assembled only into ellipsoidal micelles.
Collapse
Affiliation(s)
- Huihui Kuang
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Danyu Wang
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Zachary Schneiderman
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Michael Tsapatsis
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States.,Applied Physics Laboratory, Johns Hopkins University, Laurel, Maryland 20723, United States
| | - Efrosini Kokkoli
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| |
Collapse
|
4
|
Harris MA, Kuang H, Schneiderman Z, Shiao ML, Crane AT, Chrostek MR, Tăbăran AF, Pengo T, Liaw K, Xu B, Lin L, Chen CC, O’Sullivan MG, Kannan RM, Low WC, Kokkoli E. ssDNA nanotubes for selective targeting of glioblastoma and delivery of doxorubicin for enhanced survival. Sci Adv 2021; 7:eabl5872. [PMID: 34851666 PMCID: PMC8635432 DOI: 10.1126/sciadv.abl5872] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Effective treatment of glioblastoma remains a daunting challenge. One of the major hurdles in the development of therapeutics is their inability to cross the blood-brain tumor barrier (BBTB). Local delivery is an alternative approach that can still suffer from toxicity in the absence of target selectivity. Here, we show that nanotubes formed from self-assembly of ssDNA-amphiphiles are stable in serum and nucleases. After bilateral brain injections, nanotubes show preferential retention by tumors compared to normal brain and are taken up by glioblastoma cells through scavenger receptor binding and macropinocytosis. After intravenous injection, they cross the BBTB and internalize in glioblastoma cells. In a minimal residual disease model, local delivery of doxorubicin showed signs of toxicity in the spleen and liver. In contrast, delivery of doxorubicin by the nanotubes resulted in no systemic toxicity and enhanced mouse survival. Our results demonstrate that ssDNA nanotubes are a promising drug delivery vehicle to glioblastoma.
Collapse
Affiliation(s)
- Michael A. Harris
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA
| | - Huihui Kuang
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Zachary Schneiderman
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Maple L. Shiao
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Andrew T. Crane
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Matthew R. Chrostek
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Alexandru-Flaviu Tăbăran
- Comparative Pathology Shared Resource, Masonic Cancer Center, University of Minnesota, Saint Paul, MN 55108, USA
| | - Thomas Pengo
- University of Minnesota Informatics Institute, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kevin Liaw
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Beibei Xu
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Lucy Lin
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Clark C. Chen
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - M. Gerard O’Sullivan
- Comparative Pathology Shared Resource, Masonic Cancer Center, University of Minnesota, Saint Paul, MN 55108, USA
| | - Rangaramanujam M. Kannan
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Center for Nanomedicine, Department of Ophthalmology, Wilmer Eye Institute Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Walter C. Low
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Efrosini Kokkoli
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Corresponding author.
| |
Collapse
|
5
|
Shabana AM, Xu B, Schneiderman Z, Ma J, Chen CC, Kokkoli E. Targeted Liposomes Encapsulating miR-603 Complexes Enhance Radiation Sensitivity of Patient-Derived Glioblastoma Stem-Like Cells. Pharmaceutics 2021; 13:pharmaceutics13081115. [PMID: 34452076 PMCID: PMC8399469 DOI: 10.3390/pharmaceutics13081115] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/10/2021] [Accepted: 07/15/2021] [Indexed: 12/22/2022] Open
Abstract
Despite potential for clinical efficacy, therapeutic delivery of microRNAs (miRNA) remains a major translational barrier. Here, we explore a strategy for miRNA delivery in the treatment of glioblastoma, the most common form of adult brain cancer, that involves complexation of miRNA with polyethylenimine (PEI) and encapsulation in targeted liposomes. miRNA 603 (miR-603) is a master regulatory miRNA that suppresses glioblastoma radiation resistance through down-regulation of insulin-like growth factor 1 (IGF1) signaling. miR-603 was complexed with PEI, a cationic polymer, and encapsulated into liposomes decorated with polyethylene glycol (PEG) and PR_b, a fibronectin-mimetic peptide that specifically targets the α5β1 integrin that is overexpressed in glioblastomas. Cultured patient-derived glioblastoma cells internalized PR_b-functionalized liposomes but not the non-targeted liposomes. The integrin targeting and complexation of the miRNA with PEI were associated with a 22-fold increase in intracellular miR-603 levels, and corresponding decreases in IGF1 and IGF1 receptor (IGF1R) mRNA expression. Moreover, treatment of glioblastoma cells with the PR_b liposomes encapsulating miR-603/PEI sensitized the cells to ionizing radiation (IR), a standard of care treatment for glioblastomas. These results suggest that PR_b-functionalized PEGylated liposomes encapsulating miR-603/PEI complexes hold promise as a therapeutic platform for glioblastomas.
Collapse
Affiliation(s)
- Ahmed M. Shabana
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA; (A.M.S.); (Z.S.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Beibei Xu
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (B.X.); (J.M.)
| | - Zachary Schneiderman
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA; (A.M.S.); (Z.S.)
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jun Ma
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (B.X.); (J.M.)
| | - Clark C. Chen
- Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, MN 55455, USA; (B.X.); (J.M.)
- Correspondence: (C.C.C.); (E.K.)
| | - Efrosini Kokkoli
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA; (A.M.S.); (Z.S.)
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Correspondence: (C.C.C.); (E.K.)
| |
Collapse
|
6
|
Gulla K, Cibelli N, Cooper JW, Fuller HC, Schneiderman Z, Witter S, Zhang Y, Changela A, Geng H, Hatcher C, Narpala S, Tsybovsky Y, Zhang B, Vrc Production Program, McDermott AB, Kwong PD, Gowetski DB. A non-affinity purification process for GMP production of prefusion-closed HIV-1 envelope trimers from clades A and C for clinical evaluation. Vaccine 2021; 39:3379-3387. [PMID: 34020817 DOI: 10.1016/j.vaccine.2021.04.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/14/2021] [Accepted: 04/28/2021] [Indexed: 11/30/2022]
Abstract
Metastable glycosylated immunogens present challenges for GMP manufacturing. The HIV-1 envelope (Env) glycoprotein trimer is covered by N-linked glycan comprising half its mass and requires both trimer assembly and subunit cleavage to fold into a prefusion-closed conformation. This conformation, the vaccine-desired antigenic state, is both metastable to structural rearrangement and labile to subunit dissociation. Prior reported GMP manufacturing for a soluble trimer stabilized in a near-native state by disulfide (SOS) and Ile-to-Pro (IP) mutations has employed affinity methods based on antibody 2G12, which recognizes only ~30% of circulating HIV strains. Here, we develop a scalable manufacturing process based on commercially available, non-affinity resins, and we apply the process to current GMP (cGMP) production of trimers from clades A and C, which have been found to boost cross-clade neutralizing responses in vaccine-test species. The clade A trimer, which we named "BG505 DS-SOSIP.664", contained an engineered disulfide (201C-433C; DS) within gp120, which further stabilized this trimer in a prefusion-closed conformation resistant to CD4-induced triggering. BG505 DS-SOSIP.664 was expressed in a CHO-DG44 stable cell line and purified with initial and final tangential flow filtration steps, three commercially available resin-based chromatography steps, and two orthogonal viral clearance steps. The non-affinity purification enabled efficient scale-up, with a 250 L-scale cGMP run yielding 9.6 g of purified BG505 DS-SOSIP.664. Antigenic analysis indicated retention of a prefusion-closed conformation, including recognition by apex-directed and fusion peptide-directed antibodies. The developed manufacturing process was suitable for 50 L-scale production of a second prefusion-stabilized Env trimer vaccine candidate, ConC-FP8v2 RnS-3mut-2G-SOSIP.664, yielding 7.8 g of this consensus clade C trimer. The successful process development and purification scale-up of HIV-1 Env trimers from different clades by using commercially available materials provide experimental demonstration for cGMP manufacturing of trimeric HIV-Env vaccine immunogens, in an antigenically desired conformation, without the use of costly affinity resins.
Collapse
Affiliation(s)
- Krishana Gulla
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Nicole Cibelli
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jonathan W Cooper
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Haley C Fuller
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Zachary Schneiderman
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sara Witter
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yaqiu Zhang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Anita Changela
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Hui Geng
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Christian Hatcher
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sandeep Narpala
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yaroslav Tsybovsky
- Electron Microscopy Laboratory, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Baoshan Zhang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Vrc Production Program
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Adrian B McDermott
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Daniel B Gowetski
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.
| |
Collapse
|
7
|
Kuang H, Schneiderman Z, Shabana AM, Russo GC, Guo J, Wirtz D, Kokkoli E. Effect of an alkyl spacer on the morphology and internalization of MUC1 aptamer-naphthalimide amphiphiles for targeting and imaging triple negative breast cancer cells. Bioeng Transl Med 2021; 6:e10194. [PMID: 33532593 PMCID: PMC7823120 DOI: 10.1002/btm2.10194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/10/2020] [Accepted: 10/12/2020] [Indexed: 12/22/2022] Open
Abstract
Despite decades of research, there are few targeted treatment options available for triple negative breast cancer (TNBC), leaving chemotherapy, and radiation treatment regimes with poor response and high toxicity. Herein aptamer-amphiphiles were synthesized which selectively bind to the mucin-1 (MUC1) glycoprotein that is overexpressed in TNBC cells. These amphiphiles have a fluorescent tail (1,8-naphthalimide or 4-nitro-1,8-naphthalimide) which enables self-assembly of the amphiphiles and allows for easy visualization without the requirement for further conjugation of a fluorophore. Interestingly, the length of the alkyl spacer (C4 or C12) between the aptamer and tail was shown to influence the morphology of the self-assembled structure, and thus its ability to internalize into the TNBC cells. While both the MUC1 aptamer-C4-napthalimide spherical micelles and the MUC1 aptamer-C12-napthalimide long cylindrical micelles showed internalization into MDA-MB-468 TNBC cells but not the noncancerous MCF-10A breast cells, the cylindrical micelles showed greatly enhanced internalization into the MDA-MB-468 cells. Similar patterns of enhanced binding and internalization were observed between the MUC1 aptamer-C12-napthalimide cylindrical micelles and SUM159 and MDA-MB-231 TNBC cells. The MUC1 aptamer cylindrical micelles were not toxic to the cells, and when used to deliver doxorubicin to the TNBC cells, were shown to be as cytotoxic as free doxorubicin. Moreover, a pharmacokinetic study in mice showed a prolonged systemic circulation time of the MUC1 aptamer cylindrical micelles. There was a 4.6-fold increase in the elimination half-life of the aptamer cylindrical micelles, and their clearance decreased 10-fold compared to the MUC1 aptamer spherical micelles. Thus, the MUC1 aptamer-C12-napthalimide nanofibers represent a promising vehicle that could be used for easy visualization and targeted delivery of therapeutic loads to TNBC cells.
Collapse
Affiliation(s)
- Huihui Kuang
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Zachary Schneiderman
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Ahmed M. Shabana
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of PharmacyCairo UniversityCairoEgypt
| | - Gabriella C. Russo
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Jun Guo
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Denis Wirtz
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
| | - Efrosini Kokkoli
- Institute for NanoBioTechnologyJohns Hopkins UniversityBaltimoreMarylandUSA
- Department of Chemical and Biomolecular EngineeringJohns Hopkins UniversityBaltimoreMarylandUSA
| |
Collapse
|