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Kim J, Chun SH, Amornkitbamrung L, Song C, Yuk JS, Ahn SY, Kim BW, Lim YT, Oh BK, Um SH. Gold nanoparticle clusters for the investigation of therapeutic efficiency against prostate cancer under near-infrared irradiation. NANO CONVERGENCE 2020; 7:5. [PMID: 32064551 PMCID: PMC7024685 DOI: 10.1186/s40580-019-0216-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 12/30/2019] [Indexed: 05/06/2023]
Abstract
Gold particles have been widely used in the treatment of prostate cancer due to their unique optical properties, such as their light-heat conversion in response to near-infrared radiation. Due to well-defined synthesis mechanisms and simple manufacturing methods, gold particles have been fabricated in various sizes and shapes. However, the low photothermal transduction efficiency in their present form is a major obstacle to practical and therapeutic uses of these particles. In the current work, we present a silica-coated gold nanoparticle cluster to address the therapeutic limit of single gold nanoparticles (AuNPs) and use its photothermal effect for treatment against PC-3, a typical prostate cancer. Due to its specific nanostructure, this gold nanocluster showed three times higher photothermal transduction efficiency than free single AuNPs. Moreover, while free single particles easily clump and lose optical properties, this silica-coated cluster form remained stable for a longer time in a given medium. In photothermal tests under near-infrared radiation, the excellent therapeutic efficacy of gold nanoclusters, referred to as AuNC@SiO2, was observed in a preclinical sample. Only the samples with both injected nanoclusters followed by photothermal treatment showed completely degraded tumors after 15 days. Due to the unique intrinsic biocompatibility and higher therapeutic effect of these silica-coated gold nanoclusters, they may contribute to enhancement of therapeutic efficacy against prostate cancer.
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Affiliation(s)
- Jeonghun Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Sang Hun Chun
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Lunjakorn Amornkitbamrung
- Polymer Engineering Laboratory, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok, 10330 Thailand
| | - Chanyoung Song
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Ji Soo Yuk
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - So Yeon Ahn
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Byung Woo Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Yong Taik Lim
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
| | - Byung-Keun Oh
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, 04107 South Korea
| | - Soong Ho Um
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, Gyeonggi-do 16419 South Korea
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Shin SW, Ahn SY, Yoon S, Wee HS, Bae JW, Lee JH, Lee WB, Um SH. Differences in DNA Probe-Mediated Aggregation Behavior of Gold Nanomaterials Based on Their Geometric Appearance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14869-14874. [PMID: 30146890 DOI: 10.1021/acs.langmuir.8b01780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanoparticles are used extensively to detect nucleic acid biomarkers due to their analytical applicability and sensitivity. Systems employing the surface plasmon resonance of gold nanomaterials are overwhelmingly considered to be candidates. The aggregation of gold nanomaterials mediated by the hybridization of target DNA at the interface causes a change in the surface plasmon resonance inherent in gold nanomaterials. Such changes can be measured by spectroscopy or even visualized by the naked eye, enabling effective and positive detection. The optical properties of gold nanoparticles are affected by their shape. The geometric appearance of the nanoparticles also affects their colloidal stability and aggregation behavior. In this study, we examined the effect of the geometric appearance of gold nanomaterials on DNA-mediated aggregation behavior through comparative experiments. Experimental and theoretical methods were used concurrently to derive accurate results and to support the hypotheses. Coarse-grained molecular dynamics simulations were performed with a large-scale atomic/molecular massively parallel simulator to understand the aggregation of nanoparticles with the same surface area and various aspect ratios. As a result, we confirmed that the aggregation sensitivity of nanoparticles was affected by the shape of the contact point with the gold nanomaterials. This study demonstrates that the design of a detection system should be accompanied by an in-depth review of the morphology of the nanoparticle.
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Affiliation(s)
| | | | | | - Han Sol Wee
- School of Chemical and Biological Engineering , Seoul National University , Seoul 02194 , South Korea
| | | | | | - Won Bo Lee
- School of Chemical and Biological Engineering , Seoul National University , Seoul 02194 , South Korea
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Chun SH, Yuk JS, Um SH. Regulation of cellular gene expression by nanomaterials. NANO CONVERGENCE 2018; 5:34. [PMID: 30499017 PMCID: PMC6265357 DOI: 10.1186/s40580-018-0166-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 11/15/2018] [Indexed: 06/04/2023]
Abstract
Within a cell there are several mechanisms to regulate gene expression during cellular metabolism, growth, and differentiation. If these do not work properly, the cells will die or develop abnormally and, in some cases, even develop into tumors. Thus, a variety of exogenous and endogenous approaches have been developed that act on essential stages of transcription and translation by affecting the regulation of gene expression in an intended manner. To date, some anticancer strategies have focused on targeting abnormally overexpressed genes termed oncogenes, which have lost the ability to tune gene expression. With the rapid advent of nanotechnology, a few synthetic nanomaterials are being used as gene regulation systems. In many cases, these materials have been employed as nanocarriers to deliver key molecules such as silencing RNAs or antisense oligonucleotides into target cells, but some nanomaterials may be able to effectively modulate gene expression due to their characteristic properties, which include tunable physicochemical properties due to their malleable size and shape. This technology has improved the performance of existing approaches for regulating gene expression and led to the development of new types of advanced regulatory systems. In this short review, we will present some nanomaterials currently used in novel gene regulation systems, focusing on their basic features and practical applications. Based on these findings, it is further envisioned that next-generation gene expression regulation systems involving such nanomaterials will be developed.
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Affiliation(s)
- Sang Hun Chun
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 South Korea
| | - Ji Soo Yuk
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 South Korea
| | - Soong Ho Um
- School of Chemical Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 South Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 South Korea
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Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
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Recent developments in Förster resonance energy transfer (FRET) diagnostics using quantum dots. Anal Bioanal Chem 2016; 408:4475-83. [DOI: 10.1007/s00216-016-9434-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/14/2016] [Accepted: 02/18/2016] [Indexed: 12/21/2022]
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Samanta A, Walper SA, Susumu K, Dwyer CL, Medintz IL. An enzymatically-sensitized sequential and concentric energy transfer relay self-assembled around semiconductor quantum dots. NANOSCALE 2015; 7:7603-7614. [PMID: 25804284 DOI: 10.1039/c5nr00828j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The ability to control light energy within de novo nanoscale structures and devices will greatly benefit their continuing development and ultimate application. Ideally, this control should extend from generating the light itself to its spatial propagation within the device along with providing defined emission wavelength(s), all in a stand-alone modality. Here we design and characterize macromolecular nanoassemblies consisting of semiconductor quantum dots (QDs), several differentially dye-labeled peptides and the enzyme luciferase which cumulatively demonstrate many of these capabilities by engaging in multiple-sequential energy transfer steps. To create these structures, recombinantly-expressed luciferase and the dye-labeled peptides were appended with a terminal polyhistidine sequence allowing for controlled ratiometric self-assembly around the QDs via metal-affinity coordination. The QDs serve to provide multiple roles in these structures including as central assembly platforms or nanoscaffolds along with acting as a potent energy harvesting and transfer relay. The devices are activated by addition of coelenterazine H substrate which is oxidized by luciferase producing light energy which sensitizes the central 625 nm emitting QD acceptor by bioluminescence resonance energy transfer (BRET). The sensitized QD, in turn, acts as a relay and transfers the energy to a first peptide-labeled Alexa Fluor 647 acceptor dye displayed on its surface. This dye then transfers energy to a second red-shifted peptide-labeled dye acceptor on the QD surface through a second concentric Förster resonance energy transfer (FRET) process. Alexa Fluor 700 and Cy5.5 are both tested in the role of this terminal FRET acceptor. Photophysical analysis of spectral profiles from the resulting sequential BRET-FRET-FRET processes allow us to estimate the efficiency of each of the transfer steps. Importantly, the efficiency of each step within this energy transfer cascade can be controlled to some extent by the number of enzymes/peptides displayed on the QD. Further optimization of the energy transfer process(es) along with potential applications of such devices are finally discussed.
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Affiliation(s)
- Anirban Samanta
- Center for Bio/Molecular Science and Engineering, Code 6900, U. S. Naval Research Laboratory, Washington, DC 20375 USA.
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