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Zou J, He J, Wang X, Wang Y, Wu C, Shi M, Jiang H, Wu Z, Liu J, Zhang W. Glycoprotein Ib-regulated micro platelet ghost for biosafe distribution and photothermal oncotherapy. J Control Release 2022; 351:341-360. [PMID: 36152806 DOI: 10.1016/j.jconrel.2022.09.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 08/20/2022] [Accepted: 09/15/2022] [Indexed: 10/31/2022]
Abstract
Despite the tremendous theranostics potential of nano-scale drug delivery system (NDDS) in oncology field, their tumor-targeting efficiency and safety remain major challenges due to their proneness of off-target accumulation through widespread vascular endothelial gaps (up to 1 μm). To address this problem, in this research, micro-sized cellular platelet "ghosts" (PGs, 1.32 μm, platelet without inner granules and coagulation) were employed as carriers to ship hollow gold nanoparticles (HGNs, 58.7 nm), forming a hierarchical biosafe system (PG@HGNs) to reduce normal tissue interception and enhance tumor targeting delivery of HGNs for improved photothermal therapy. PGs were prepared by an optimized "swelling-extrusion-elution" method, HGNs were loaded in PGs (PG@HGNs) through a "hypotonic dialysis" method and the safety and biodistribution of the system was evaluated in vitro and in vivo. In in vitro condition that stimulated the tumoral vessel acidic microenvironment (pH = 6.5), PG@HGNs were demonstrated with enhanced membrane fluidity through down-regulation of the glycoprotein Ib expressed on the PGs. This change induced a burst release of nano-sized HGNs which were capable to traverse vascular endothelium layer on a tumor-endothelial cell transwell model, whilst the micro-sized PG carriers were intercepted. In comparison to nano-sized platelet membrane-coated carriers (PM@HGNs), PG@HGNs showed enhanced internalization and cytotoxicity to 4T1 cells. In animal models, PG@HGNs remarkably prolonged circulation most likely due to the presence of "self-recognition" receptor-CD47 of PGs, and effectively reduced normal tissue interception via the micro-scale size effect. These both contributed to the significantly improved tumor targeting efficiency of HGNs. PG@HGNs generated the greater antitumor photothermal efficacy alongside safety in the animals compared to PM@HGNs. Collectively, this study demonstrated the potential of the micro-scale PGs equipped with adjusted membrane GP Ib as biosafe vehicles for HGNs or possibly other nanodrugs. THE STATEMENT OF SIGNIFICANCE: Despite the tremendous theranostics potentials, the safety and tumor-targeting efficiency of nano-scale drug delivery systems (NDDS) are compromised by their undesirable accumulation in normal tissues with widespread vascular endothelial gaps, such as many tumor-targeted NDDSs still accumulated much in liver and/or spleen. Herein, we explored a micro-nano biomimetic cascade delivery system to address the above drawbacks. By forming a hierarchical biosafe system, micro-sized platelet "ghost" (PGs, 1.32 μm) was employed as tumor-targeted delivery carrier to transport hollow gold nanoparticles (HGNs, 58.7 nm). It was demonstrated that this micro-size system could maintain platelet membrane structure thus prolong in vivo circulation, while avoiding extravasation into normal tissues. PG@HGNs could sensitively respond to the acidic microenvironment near tumor vessel via down-regulation of glycoprotein Ib and rapidly release "nano-bullets"-HGNs to further penetrate into the tumor tissues through EPR effect, thus enhancing photothermal efficacy generated by HGNs under NIR irradiation. Collectively, the micro-scaled PGs could be biosafe vehicles for improved tumor-targeted delivery of HGNs or possibly other nanodrugs.
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Affiliation(s)
- Jiahui Zou
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Jianhua He
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Xiaobo Wang
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Yajie Wang
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Chenchen Wu
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Mengya Shi
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Hulin Jiang
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China
| | - Zimei Wu
- School of Pharmacy, The University of Auckland, Auckland 1142, New Zealand
| | - Jianping Liu
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China.
| | - Wenli Zhang
- Department of Pharmaceutics, China Pharmaceutical University, Jiangsu 210009, PR China.
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Tangthong T, Piroonpan T, Thipe VC, Khoobchandani M, Katti K, Katti KV, Pasanphan W. Water-Soluble Chitosan Conjugated DOTA-Bombesin Peptide Capped Gold Nanoparticles as a Targeted Therapeutic Agent for Prostate Cancer. Nanotechnol Sci Appl 2021; 14:69-89. [PMID: 33776426 PMCID: PMC7987316 DOI: 10.2147/nsa.s301942] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/03/2021] [Indexed: 12/16/2022] Open
Abstract
Introduction Functionalization of water-soluble chitosan (WSCS) nanocolloids with, gold nanoparticles (AuNPs), and LyslLys3 (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid)-bombesin 1–14 (DOTA-BBN) peptide affords an innovative pathway to produce prostate tumor cell-specific nanomedicine agents with potential applications in molecular imaging and therapy. Methods The preparation involves the production and full characterization of water-soluble chitosan (WSCS), via gamma (γ) rays (80 kGy) irradiation, followed by DOTA-BBN conjugation for subsequent use as an effective template toward the synthesis of tumor cell-specific AuNPs-WSCS-DOTA-BBN. Results The WSCS-DOTA-BBN polymeric nanoparticles (86 ± 2.03 nm) served multiple roles as reducing and stabilizing agents in the overall template synthesis of tumor cell-targeted AuNPs. The AuNPs capped with WSCS and WSCS-DOTA-BBN exhibited average Au-core diameter of 17 ± 8 nm and 20 ± 7 nm with hydrodynamic diameters of 56 ± 1 and 67± 2 nm, respectively. The AuNPs-WSCS-DOTA-BBN showed optimum in vitro stability in biologically relevant solutions. The targeted AuNPs showed selective affinity toward GRP receptors overexpressed in prostate cancer cells (PC-3 and LNCaP). Discussion The AuNPs-WSCS-DOTA-BBN displayed cytotoxicity effects against PC-3 and LNCaP cancer cells, with concomitant safety toward the HAECs normal cells. The AuNPs-WSCS-DOTA-BBN showed synergistic targeting toward tumor cells with selective cytotoxicity of AuNPs towards PC-3 and LNCaP cells. Our investigations provide compelling evidence that AuNPs functionalized with WSCS-DOTA-BBN is an innovative nanomedicine approach for use in molecular imaging and therapy of GRP receptor-positive tumors. The template synthesis of AuNPs-WSCS-DOTA-BBN serves as an excellent non-radioactive surrogate for the development of the corresponding 198AuNPs theragnostic nanoradiopharmaceutical for use in cancer diagnosis and therapy.
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Affiliation(s)
- Theeranan Tangthong
- Department of Materials Science, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.,Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
| | - Thananchai Piroonpan
- Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
| | - Velaphi C Thipe
- Laboratório de Ecotoxicologia - Centro de Química e Meio Ambiente - Instituto de Pesquisas Energéticase Nucleares (IPEN) - Comissão Nacional de Energia Nuclear- IPEN/CNEN-SP, São Paulo, Brasil.,Institute of Green Nanotechnology, University of Missouri, Columbia, MO, 65211, USA
| | - Menka Khoobchandani
- Institute of Green Nanotechnology, University of Missouri, Columbia, MO, 65211, USA.,Department of Radiology, University of Missouri, Columbia, MO, 65211, USA
| | - Kavita Katti
- Institute of Green Nanotechnology, University of Missouri, Columbia, MO, 65211, USA.,Department of Radiology, University of Missouri, Columbia, MO, 65211, USA
| | - Kattesh V Katti
- Institute of Green Nanotechnology, University of Missouri, Columbia, MO, 65211, USA.,Department of Radiology, University of Missouri, Columbia, MO, 65211, USA.,Department of Physics, University of Missouri, Columbia, MO, 65211, USA
| | - Wanvimol Pasanphan
- Department of Materials Science, Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand.,Center of Radiation Processing for Polymer Modification and Nanotechnology (CRPN), Faculty of Science, Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
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Wang C, Li Z, Liu Y, Yuan L. Exosomes in atherosclerosis: performers, bystanders, biomarkers, and therapeutic targets. Am J Cancer Res 2021; 11:3996-4010. [PMID: 33664877 PMCID: PMC7914371 DOI: 10.7150/thno.56035] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/14/2021] [Indexed: 12/12/2022] Open
Abstract
Exosomes are nanosized lipid vesicles originating from the endosomal system that carry many macromolecules from their parental cells and play important roles in intercellular communication. The functions and underlying mechanisms of exosomes in atherosclerosis have recently been intensively studied. In this review, we briefly introduce exosome biology and then focus on advances in the roles of exosomes in atherosclerosis, specifically exosomal changes associated with atherosclerosis, their cellular origins and potential functional cargos, and their detailed impacts on recipient cells. We also discuss the potential of exosomes as biomarkers and drug carriers for managing atherosclerosis.
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Mackay SM, Myint DMA, Easingwood RA, Hegh DY, Wickens JR, Hyland BI, Jameson GNL, Reynolds JNJ, Tan EW. Dynamic control of neurochemical release with ultrasonically-sensitive nanoshell-tethered liposomes. Commun Chem 2019. [DOI: 10.1038/s42004-019-0226-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Abstract
The unique surface plasmon resonance of hollow gold nanoshells can be used to achieve drug release from liposomes upon laser stimulation, and adapted to mimic the intricate dynamics of neurotransmission ex vivo in brain preparations. However, to induce a physiological response in vivo requires the degree of temporal precision afforded by laser stimulation, but with a greater depth of penetration through tissue. Here we report that the attachment of hollow gold nanoshells to the surface of robust liposomes results in a construct that is highly sensitive to ultrasonic stimulation. The resulting construct can be remotely triggered by low intensity, therapeutic ultrasound. To our knowledge, this is the first example of nanoparticle-liposome system that can be activated by both laser and acoustic stimulation. The system is capable of encapsulating the neurochemical dopamine, and repeatedly releasing small amounts on-demand in a circulating environment, allowing for precise spatiotemporal control over the release profile.
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Li X, Tang Y, Chen C, Qiu D, Cao Y. PEGylated gold nanorods are not cytotoxic to human endothelial cells but affect kruppel-like factor signaling pathway. Toxicol Appl Pharmacol 2019; 382:114758. [PMID: 31521728 DOI: 10.1016/j.taap.2019.114758] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/17/2019] [Accepted: 09/11/2019] [Indexed: 12/19/2022]
Abstract
Gold (Au) nanomaterials (NMs), particularly those with PEG surface functionalization, are generally considered to be biocompatible for biomedical applications due to relatively low cytotoxicity. Herein, we investigated the toxicity of PEGylated Au nanorods (NRs) to human umbilical vein endothelial cells (HUVECs), a commonly used in vitro model for human endothelium. We found a previously unknown effect that up to 10 μg/mL Au NRs, albeit not cytotoxic, decreased the mRNA and protein levels of kruppel-like factor 2 (KLF2), a transcription factor with well-documented vasoprotective effects. The results from PCR array showed that a number of genes associated with risk of cardiovascular diseases were altered by Au NRs, and several genes are downstream genes of KLF2 according to ingenuity pathway analysis (IPA). These effects could be observed with or without the presence of inflammatory stimuli lipopolysaccharide (LPS), which suggests a pre-existing inflammatory state is not required for Au NRs to alter KLF2 signaling pathway. We further identified that Au NRs significantly decreased eNOS mRNA/p-eNOS proteins as well as increased MCP-1 mRNA/sMCP-1 release, which are targets of KLF2. Combined, our data revealed a novel pathway that PEGylated Au NPs at non-cytotoxic concentrations might alter KLF leading to the increase of risk of cardiovascular diseases in human endothelial cells. Given the importance of KLF in vascular homeostasis, our data indicate that it is necessary to evaluate the influence of engineered NPs to KLF signaling pathways, especially for NPs with biomedical uses.
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Affiliation(s)
- Xianqiang Li
- College of Animal Science, Key Laboratory of Tarim Animal Husbandry Science and Technology of Xinjiang Production and Construction Corps, Tarim University, Xinjiang, China
| | - Yuanfang Tang
- Key Laboratory of Environment-Friendly Chemistry and Application of Ministry of Education, Laboratory of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Dexin Qiu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Shizishan Street 1, Hongshan District, Wuhan 430070, People's Republic of China.
| | - Yi Cao
- Key Laboratory of Environment-Friendly Chemistry and Application of Ministry of Education, Laboratory of Biochemistry, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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Zhu R, Li Y, Zhang X, Bian K, Yang M, Cong C, Cheng X, Zhao S, Li X, Gao D. Vapreotide-mediated hierarchical mineralized Ag/Au nanoshells for photothermal anti-tumor therapy. NANOTECHNOLOGY 2019; 30:055602. [PMID: 30520422 DOI: 10.1088/1361-6528/aaf0db] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A new type of vapreotide-templated Ag/Au bimetallic nanoshells (Vap@Ag/AuNSs) were successfully designed and fabricated based on polypeptide-directed mineralization and hierarchical self-assembly mechanisms under mild synthetic conditions. The nanoparticles with polypeptides serving as a core and coated Ag/Au bimetallic nanoshells exhibit diverse advantages, such as excellent biocompatibility, tumor targeting and low-cost. The Vap@Ag/AuNSs share excellent dispersibility, uniform size (120 nm) and a positive zeta potential (36.74 ± 4.49 mV), hence they easily accumulate in negatively charged tumor tissue. The results of thermal imaging, temperature variation assays and photothermal conversion efficiency (41.6%) indicated that Vap@Ag/AuNSs have excellent photothermal conversion capability. Based on their photothermal response, as well as biocompatibility determined by MTT assay, the prominent anti-tumor effects of Vap@Ag/AuNSs have been verified by fluorescein diacetate staining. Therefore, Vap@Ag/AuNSs are novel and promising candidates for photothermal tumor therapy.
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Affiliation(s)
- Ruiyan Zhu
- Applied Chemistry Key Lab of Hebei Province, Department of Bioengineering, Yanshan University, Qinhuangdao 066004, People's Republic of China. Asparagus Industry Technology Research Institute of Hebei Province, Qinhuangdao 066004, People's Republic of China
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