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Won EJ, Park H, Chang SH, Kim JH, Kwon H, Cho YS, Yoon TJ. One-shot dual gene editing for drug-resistant pancreatic cancer therapy. Biomaterials 2021; 279:121252. [PMID: 34781244 DOI: 10.1016/j.biomaterials.2021.121252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/30/2021] [Revised: 10/13/2021] [Accepted: 11/09/2021] [Indexed: 12/28/2022]
Abstract
It is challenging to diagnose patients with pancreatic ductal adenocarcinoma (PDAC) early on, and their treatment is often complex. Gemcitabine (GEM) is the first-line treatment for PDAC, but its efficacy is limited in most patients due to the GEM resistance from KRAS and P53 gene mutations. We describe the correction of a double gene mutation and therapeutic effect for the GEM resistant PDAC. Bio-available nanoliposomes (NL) possessing Cas9-ribonucleoproteins and adenine-base editors were developed to conduct KRAS and P53 mutation gene editing directly. NLs were conjugated with EGFR antibodies to tumor-specific delivery, and the anti-cancer effect was verified in vitro and in vivo Model. Our GEM-combinatorial therapeutic strategies using double gene editing systems with one-shot may be a potent therapy for PDAC, overcoming chemoresistance.
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Affiliation(s)
- Eun-Jeong Won
- Laboratory of Nanopharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, South Korea
| | - Hyeji Park
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 06591, Seoul, South Korea
| | - Seung-Hee Chang
- Laboratory of Nanopharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, South Korea; Moogene Medi Institute, Korea-Bio Park, Seongnam, South Korea
| | - Jin Hyun Kim
- Laboratory of Nanopharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, South Korea; Moogene Medi Institute, Korea-Bio Park, Seongnam, South Korea
| | - Hojeong Kwon
- Department of Anthropology, College of Arts and Science, New York University, New York, USA
| | - Young-Seok Cho
- Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 06591, Seoul, South Korea.
| | - Tae-Jong Yoon
- Laboratory of Nanopharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, Suwon, South Korea; Moogene Medi Institute, Korea-Bio Park, Seongnam, South Korea.
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Ryu JY, Choi YJ, Won EJ, Hui E, Kim HS, Cho YS, Yoon TJ. Gene editing particle system as a therapeutic approach for drug-resistant colorectal cancer. Nano Res 2020; 13:1576-1585. [DOI: 10.1007/s12274-020-2773-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 02/27/2020] [Accepted: 03/23/2020] [Indexed: 08/29/2023]
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Ryu JY, Won EJ, Lee HAR, Kim JH, Hui E, Kim HP, Yoon TJ. Ultrasound-activated particles as CRISPR/Cas9 delivery system for androgenic alopecia therapy. Biomaterials 2019; 232:119736. [PMID: 31901692 DOI: 10.1016/j.biomaterials.2019.119736] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [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: 08/23/2019] [Revised: 11/27/2019] [Accepted: 12/25/2019] [Indexed: 01/18/2023]
Abstract
Compared to a plasmid, viral, and other delivery systems, direct Cas9/sgRNA protein delivery has several advantages such as low off-targeting effects and non-integration, but it still has limitations due to low transfer efficiency. As such, the CRISPR/Cas9 system is being developed in combination with nano-carrier technology to enhance delivery efficiency and biocompatibility. We designed a microbubble-nanoliposomal particle as a Cas9/sgRNA riboprotein complex carrier, which effectively facilitates local delivery to a specific site when agitated by ultrasound activation. In practice, we successfully transferred the protein constructs into dermal papilla cells in the hair follicle of androgenic alopecia animals by microbubble cavitation induced sonoporation of our particle. The delivered Cas9/sgRNA recognized and edited specifically the target gene with high efficiency in vitro and in vivo, thus recovering hair growth. We demonstrated the topical application of ultrasound-activated nanoparticles for androgenic alopecia therapy through the suppression of SRD5A2 protein production by CRISPR-based genomic editing.
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Affiliation(s)
- Jee-Yeon Ryu
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea
| | - Eun-Jeong Won
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea
| | - Han A Reum Lee
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea
| | - Jin Hyun Kim
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea
| | - Emmanuel Hui
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea
| | - Hong Pyo Kim
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea.
| | - Tae-Jong Yoon
- Lab. of NanoPharmacy, College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou Universtiy, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499, South Korea.
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Cho EY, Ryu JY, Lee HAR, Hong SH, Park HS, Hong KS, Park SG, Kim HP, Yoon TJ. Lecithin nano-liposomal particle as a CRISPR/Cas9 complex delivery system for treating type 2 diabetes. J Nanobiotechnology 2019; 17:19. [PMID: 30696428 PMCID: PMC6350399 DOI: 10.1186/s12951-019-0452-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 01/10/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Protein-based Cas9 in vivo gene editing therapeutics have practical limitations owing to their instability and low efficacy. To overcome these obstacles and improve stability, we designed a nanocarrier primarily consisting of lecithin that can efficiently target liver disease and encapsulate complexes of Cas9 with a single-stranded guide RNA (sgRNA) ribonucleoprotein (Cas9-RNP) through polymer fusion self-assembly. RESULTS In this study, we optimized an sgRNA sequence specifically for dipeptidyl peptidase-4 gene (DPP-4) to modulate the function of glucagon-like peptide 1. We then injected our nanocarrier Cas9-RNP complexes directly into type 2 diabetes mellitus (T2DM) db/db mice, which disrupted the expression of DPP-4 gene in T2DM mice with remarkable efficacy. The decline in DPP-4 enzyme activity was also accompanied by normalized blood glucose levels, insulin response, and reduced liver and kidney damage. These outcomes were found to be similar to those of sitagliptin, the current chemical DPP-4 inhibition therapy drug which requires recurrent doses. CONCLUSIONS Our results demonstrate that a nano-liposomal carrier system with therapeutic Cas9-RNP has great potential as a platform to improve genomic editing therapies for human liver diseases.
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Affiliation(s)
- Eun Yi Cho
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
- Moogene Medi Co. Ltd., Korea Bio Park, Daewangpangyo-ro 700, Seongnam, 13488 South Korea
| | - Jee-Yeon Ryu
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
| | - Han A. Reum Lee
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
| | - Shin Hee Hong
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
| | - Hye Sun Park
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju, 28119 South Korea
| | - Kwan Soo Hong
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju, 28119 South Korea
| | - Sang-Gyu Park
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
| | - Hong Pyo Kim
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
| | - Tae-Jong Yoon
- College of Pharmacy, Research Institute of Pharmaceutical Science and Technology (RIPST), Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, 16499 South Korea
- Moogene Medi Co. Ltd., Korea Bio Park, Daewangpangyo-ro 700, Seongnam, 13488 South Korea
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Lee HJ, Yoon TJ, Yoon YI. Synthesis of ultrasound contrast agents: characteristics and size distribution analysis (secondary publication). Ultrasonography 2017; 36:378-384. [PMID: 28290183 PMCID: PMC5621802 DOI: 10.14366/usg.17014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 01/26/2017] [Revised: 02/10/2017] [Accepted: 02/14/2017] [Indexed: 11/03/2022] Open
Abstract
PURPOSE The purpose of this study was to establish a method for ultrasound (US) contrast agent synthesis and to evaluate the characteristics of the synthesized US contrast agent. METHODS A US contrast agent, composed of liposome and sulfur hexafluoride (SF6), was synthesized by dissolving 21 μmol 1,2-dihexadecanoyl-sn-glycero-3-phosphocholine (DPPC, C40H80NO8P), 9 μmol cholesterol, and 1.9 μmol of dihexadecylphosphate (DCP, [CH3(CH2)15O]2P(O)OH) in chloroform. After evaporation in a warm water bath and drying for 12-24 hours, the contrast agent was synthesized using the sonication process by the addition of a buffer and SF6 gas. The size distribution of the bubbles was analyzed using dynamic light scattering measurement methods. The degradation curve was evaluated by assessing the change in the number of contrast agent bubbles using light microscopy immediately, 12, 24, 36, 48, 60, 72, and 84 hours after synthesis. The echogenicity of the synthesized microbubbles was compared with commercially available microbubbles (SonoVue, Bracco). RESULTS contrast agent was synthesized successfully using an evaporation-drying-sonication method. Most bubbles had a mean diameter of 154.2 nm and showed marked degradation 24 hours after synthesis. Although no statistically significant differences were observed between SonoVue and the synthesized contrast agent, a difference in echogenicity was observed between the synthesized contrast agent and saline (P<0.01). CONCLUSION We successfully synthesized a US contrast agent using an evaporation-dryingsonication method. These results may help future research in the fields of anticancer drug delivery, gene delivery, targeted molecular imaging, and targeted therapy.
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Affiliation(s)
- Hak Jong Lee
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Seoul, Korea.,Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Tae-Jong Yoon
- Department of Applied Bioscience, CHA University, Pocheon, Korea
| | - Young Il Yoon
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Seoul, Korea
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Lee DH, Cho HS, Han D, Chand R, Yoon TJ, Kim YS. Highly selective organic transistor biosensor with inkjet printed graphene oxide support system. J Mater Chem B 2017; 5:3580-3585. [DOI: 10.1039/c6tb03357a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesized graphene oxide ink was printed on FET biosensor for specific bio-sensing of DNA and CTCs.
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Affiliation(s)
- Dong-Hoon Lee
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon
- South Korea
| | - Hee-Sang Cho
- Nano-bio Materials Chemistry Lab
- College of Pharmacy
- Ajou University
- Suwon
- South Korea
| | - Dawoon Han
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon
- South Korea
| | - Rohit Chand
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon
- South Korea
| | - Tae-Jong Yoon
- Nano-bio Materials Chemistry Lab
- College of Pharmacy
- Ajou University
- Suwon
- South Korea
| | - Yong-Sang Kim
- School of Electronic and Electrical Engineering
- Sungkyunkwan University
- Suwon
- South Korea
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Jin SE, Ahn HS, Kim JH, Arai Y, Lee SH, Yoon TJ, Hwang SJ, Sung JH. Boiling Method-Based Zinc Oxide Nanorods for Enhancement of Adipose-Derived Stem Cell Proliferation. Tissue Eng Part C Methods 2016; 22:847-55. [PMID: 27464704 DOI: 10.1089/ten.tec.2015.0528] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Adipose-derived stem cells (ASCs) are typically expanded to acquire large numbers of cells for therapeutic applications. Diverse stimuli such as sphingosylphosphocholine and vitamin C have been used to increase the production yield and regenerative potential of ASCs. In the present study, we hypothesized that ZnO nanorods have promising potential for the enhancement of ASC proliferation. ZnO nanorods were prepared using three different methods: grinding and boiling at low temperature with and without surfactant. The physicochemical properties of the nanorods such as their crystallinity, morphology, size, and solvent compatibility were evaluated, and then, the ability of the synthesized ZnO nanorods to enhance ASC proliferation was investigated. Scanning electron microscopy images of all of the ZnO powders showed rod-shaped nanoflakes with lengths of 200-500 nm. Notably, although ZnO-G produced by the grinding method was well dispersed in ethanol, atomic force microscopy images of dispersions of both ZnO-B from boiling methods and ZnO-G indicated the presence of clusters of ZnO nanorods. In contrast, ZnO-B was freely dispersible in 5% dextrose of water and dimethyl sulfoxide, whereas ZnO-G and ZnO-M, produced by boiling with ethanolamine, were not. All three types of ZnO nanorods increased the proliferation of ASCs in a dose-dependent manner. These results collectively suggest that ZnO nanorods have promising potential for use as an agent for the enhancement of ASC proliferation.
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Affiliation(s)
- Su-Eon Jin
- 1 College of Pharmacy, Yonsei University , Incheon, Korea.,2 College of Medicine, Yonsei University , Seoul, Korea.,3 Institutes of Pharmaceutical Sciences, Yonsei University , Incheon, Korea
| | - Hyo-Sun Ahn
- 1 College of Pharmacy, Yonsei University , Incheon, Korea
| | - Ji Hye Kim
- 1 College of Pharmacy, Yonsei University , Incheon, Korea
| | - Yoshie Arai
- 4 Department of Biomedical Science, CHA University , Seongnam, Korea
| | - Soo-Hong Lee
- 4 Department of Biomedical Science, CHA University , Seongnam, Korea
| | - Tae-Jong Yoon
- 5 College of Pharmacy, Ajou University , Suwon, Korea
| | - Sung-Joo Hwang
- 1 College of Pharmacy, Yonsei University , Incheon, Korea.,3 Institutes of Pharmaceutical Sciences, Yonsei University , Incheon, Korea
| | - Jong-Hyuk Sung
- 1 College of Pharmacy, Yonsei University , Incheon, Korea.,3 Institutes of Pharmaceutical Sciences, Yonsei University , Incheon, Korea.,6 Stemmore, Co. Ltd. , Incheon, Korea
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Bae YJ, Yoon YI, Yoon TJ, Lee HJ. Ultrasound-Guided Delivery of siRNA and a Chemotherapeutic Drug by Using Microbubble Complexes: In Vitro and In Vivo Evaluations in a Prostate Cancer Model. Korean J Radiol 2016; 17:497-508. [PMID: 27390541 PMCID: PMC4936172 DOI: 10.3348/kjr.2016.17.4.497] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 04/14/2016] [Indexed: 11/15/2022] Open
Abstract
Objective To evaluate the effectiveness of ultrasound and microbubble-liposome complex (MLC)-mediated delivery of siRNA and doxorubicin into prostate cancer cells and its therapeutic capabilities both in vitro and in vivo. Materials and Methods Microbubble-liposome complexes conjugated with anti-human epidermal growth factor receptor type 2 (Her2) antibodies were developed to target human prostate cancer cell lines PC-3 and LNCaP. Intracellular delivery of MLC was observed by confocal microscopy. We loaded MLC with survivin-targeted small interfering RNA (siRNA) and doxorubicin, and delivered it into prostate cancer cells. The release of these agents was facilitated by ultrasound application. Cell viability was analyzed by MTT assay after the delivery of siRNA and doxorubicin. Survivin-targeted siRNA loaded MLC was delivered into the xenograft mouse tumor model. Western blotting was performed to quantify the expression of survivin in vivo. Results Confocal microscopy demonstrated substantial intracellular uptake of MLCs in LNCaP, which expresses higher levels of Her2 than PC-3. The viability of LNCaP cells was significantly reduced after the delivery of MLCs loaded with siRNA and doxorubicin (85.0 ± 2.9%), which was further potentiated by application of ultrasound (55.0 ± 3.5%, p = 0.009). Survivin expression was suppressed in vivo in LNCaP tumor xenograft model following the ultrasound and MLC-guided delivery of siRNA (77.4 ± 4.90% to 36.7 ± 1.34%, p = 0.027). Conclusion Microbubble-liposome complex can effectively target prostate cancer cells, enabling intracellular delivery of the treatment agents with the use of ultrasound. Ultrasound and MLC-mediated delivery of survivin-targeted siRNA and doxorubicin can induce prostate cell apoptosis and block survivin expression in vitro and in vivo.
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Affiliation(s)
- Yun Jung Bae
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 13620, Korea.; Department of Radiology, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Young Il Yoon
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 13620, Korea.; Department of Radiology, Seoul National University College of Medicine, Seoul 03080, Korea.; Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Suwon 16229, Korea
| | - Tae-Jong Yoon
- Department of Applied Bioscience, College of Life Science, CHA University, Pocheon 11160, Korea.; College of Pharmacy, Ajou University, Suwon 16499, Korea
| | - Hak Jong Lee
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 13620, Korea.; Department of Radiology, Seoul National University College of Medicine, Seoul 03080, Korea.; Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Suwon 16229, Korea
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Park SH, Yoon YI, Moon H, Lee GH, Lee BH, Yoon TJ, Lee HJ. Development of a novel microbubble-liposome complex conjugated with peptide ligands targeting IL4R on brain tumor cells. Oncol Rep 2016; 36:131-6. [PMID: 27220374 DOI: 10.3892/or.2016.4836] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 01/05/2016] [Indexed: 11/06/2022] Open
Abstract
Gas (SF6)-filled microbubbles (MBs) were prepared by emulsion and solvent-evaporation method. The prepared MBs were further conjugated with doxorubicin (Dox)-loaded nano-sized liposome and peptide ligands to interleukin-4 receptor (IL4R) for targeting brain tumor cells. The final MB-liposome (Dox)-IL4R targeting peptide ligand [MB-Lipo (Dox)-IL4RTP] had a spherical structure with the mean size of 1,500 nm. The MB-Lipo (Dox)‑IL4RTP exhibited cellular uptake in U87MG brain tumor cells (a brain tumor cell line expressing strongly IL4R) with frequency ultrasound energy suggesting that MB-Lipo (Dox)‑IL4RTP provided effective targeting ability for brain tumor cells. In addition, WST-1 assay results showed that MB-Lipo (Dox)‑IL4RTP inhibited the proliferation of U87MG cells IL4R‑dependently. This was confirmed by western blotting of γH2AX, phospho (Ser15)-p53, p53 and p21 which are signal transduction proteins involved in DNA damage response and cell cycle arrest. Taken together, these results indicate that MB-Lipo (Dox)-IL4RTP represents a promising ultrasonic contrast agent for tumor-targeting ultrasonic imaging.
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Affiliation(s)
- See-Hyoung Park
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University, Graduate School of Convergence Science and Technology, Suwon, Republic of Korea
| | - Young Ii Yoon
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University, Graduate School of Convergence Science and Technology, Suwon, Republic of Korea
| | - Hyoungwon Moon
- Department of Radiology, Seoul National University, Bundang Hospital, Seungnam, Republic of Korea
| | - Ga-Hyun Lee
- Department of Cellular and Molecular Biology, California State University, Chico, CA, USA
| | - Byung-Heon Lee
- Department of Biochemistry and Cell Biology, Kyungpook National University, Daegu, Republic of Korea
| | - Tae-Jong Yoon
- Department of Pharmacy, Ajou University, Suwon, Republic of Korea
| | - Hak Jong Lee
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University, Graduate School of Convergence Science and Technology, Suwon, Republic of Korea
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Abstract
For breast cancer stem cell therapy using magnetic hyperthermia, the size of the particles and the alternating magnetic field conditions such as frequency and field strength should be optimized to increase the heating ability.
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Affiliation(s)
- Yong-Su Kwon
- Nanopharmacy Lab
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST)
- Ajou University
- Suwon
- South Korea
| | - Kyunjong Sim
- Department of Chemistry
- Seoul National University
- Seoul
- South Korea
| | - Taeyoon Seo
- Department of Electrical and Computer Engineering
- Institute of New Media and Communications
- Seoul National University
- Seoul
- South Korea
| | - Jin-Kyu Lee
- Department of Chemistry
- Seoul National University
- Seoul
- South Korea
| | - Youngwoo Kwon
- Department of Electrical and Computer Engineering
- Institute of New Media and Communications
- Seoul National University
- Seoul
- South Korea
| | - Tae-Jong Yoon
- Nanopharmacy Lab
- College of Pharmacy and Research Institute of Pharmaceutical Science and Technology (RIPST)
- Ajou University
- Suwon
- South Korea
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Yu KN, Chang SH, Park SJ, Lim J, Lee J, Yoon TJ, Kim JS, Cho MH. Titanium Dioxide Nanoparticles Induce Endoplasmic Reticulum Stress-Mediated Autophagic Cell Death via Mitochondria-Associated Endoplasmic Reticulum Membrane Disruption in Normal Lung Cells. PLoS One 2015; 10:e0131208. [PMID: 26121477 PMCID: PMC4485469 DOI: 10.1371/journal.pone.0131208] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/30/2015] [Indexed: 01/08/2023] Open
Abstract
Nanomaterials are used in diverse fields including food, cosmetic, and medical industries. Titanium dioxide nanoparticles (TiO2-NP) are widely used, but their effects on biological systems and mechanism of toxicity have not been elucidated fully. Here, we report the toxicological mechanism of TiO2-NP in cell organelles. Human bronchial epithelial cells (16HBE14o-) were exposed to 50 and 100 μg/mL TiO2-NP for 24 and 48 h. Our results showed that TiO2-NP induced endoplasmic reticulum (ER) stress in the cells and disrupted the mitochondria-associated endoplasmic reticulum membranes (MAMs) and calcium ion balance, thereby increasing autophagy. In contrast, an inhibitor of ER stress, tauroursodeoxycholic acid (TUDCA), mitigated the cellular toxic response, suggesting that TiO2-NP promoted toxicity via ER stress. This novel mechanism of TiO2-NP toxicity in human bronchial epithelial cells suggests that further exhaustive research on the harmful effects of these nanoparticles in relevant organisms is needed for their safe application.
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Affiliation(s)
- Kyeong-Nam Yu
- Laboratory of Toxicology, BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-gu, Seoul, Korea
| | - Seung-Hee Chang
- Laboratory of Toxicology, BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-gu, Seoul, Korea
| | - Soo Jin Park
- R&D Center, Biterials Co., Siksa-dong, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea, Korea
| | - Joohyun Lim
- Department of Chemistry, College of Natural Sciences, Gwanak-gu, Seoul National University, Seoul, Korea
| | - Jinkyu Lee
- Department of Chemistry, College of Natural Sciences, Gwanak-gu, Seoul National University, Seoul, Korea
| | - Tae-Jong Yoon
- Department of Applied Bioscience, College of Life Science, CHA University, Pocheon-shi, Gyeonggi-do, Korea
| | - Jun-Sung Kim
- R&D Center, Biterials Co., Siksa-dong, Ilsandong-gu, Goyang-si, Gyeonggi-do, Korea, Korea
- * E-mail: (JSK); (MHC)
| | - Myung-Haing Cho
- Laboratory of Toxicology, BK21 PLUS Program for Creative Veterinary Science Research, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-gu, Seoul, Korea
- Graduate Group of Tumor Biology, Seoul National University, Gwanak-gu, Seoul, Korea
- Graduate School of Convergence Science and Technology, Seoul National University, Yeongtong-Gu, Suwon, Gyeonggi-Do, Korea
- Advanced Institute of Convergence Technology, Seoul National University, Suwon, Gyeonggi-Do, Korea
- * E-mail: (JSK); (MHC)
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12
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Yoon YI, Yoon TJ, Lee HJ. Optimization of ultrasound parameters for microbubble-nanoliposome complex-mediated delivery. Ultrasonography 2015; 34:297-303. [PMID: 26044281 PMCID: PMC4603209 DOI: 10.14366/usg.15009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 02/03/2015] [Revised: 04/21/2015] [Accepted: 04/22/2015] [Indexed: 12/25/2022] Open
Abstract
Purpose: The aim of this study was to identify the optimal ultrasound (US) parameters for gene and drug delivery. Methods: In order to target SkBr3, which is a breast cancer cell overexpressing the Her2 receptor, trastuzumab (Herceptin) was used. Micobubble-nanoliposome complex (MLC) was mixed with trastuzumab and stored overnight. Finally, MLC was combined with Her2Ab. A US device equipped with a 1-MHz probe was used for delivery to the cell. Several parameters, including intensity (w/cm2), time (minutes), and duty cycle (%), were varied within a range from 1 w/cm2, 1 minute, and 20% to 2 w/cm2, 2 minutes, and 60%, respectively. A confocal laser scanning microscope (CLSM) was used to confirm the delivery of MLC to the cells after US treatment. Results: MLC with fluorescent dyes and trastuzumab was synthesized successfully. By delivering MLC with Her2Ab to cells, the targeting effect of trastuzumab with MLC was confirmed by CLSM. The cell membranes showed green (fluorescein isothiocyanate) and red (Texas red) fluorescence but treatments with MLC without Her2Ab did not show any fluorescence. Optimal conditions for US-mediated delivery were 1 or 2 w/cm2, 2 minutes, and 60% (uptake ratio, 95.9% for 1 w/cm2 and 95.7% for 2 w/cm2) for hydrophobic materials and 2 w/cm2, 2 minutes, and 60% (uptake ratio, 95.0%) for hydrophilic materials. Conclusion: The greater the strength, duty cycle, and period of US application within the tested range, the more efficiently the fluorescent contents were conveyed.
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Affiliation(s)
- Young Il Yoon
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, Korea ; Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Tae-Jong Yoon
- Department of Applied Bioscience, CHA University, Seongnam, Korea
| | - Hak Jong Lee
- Program in Nano Science and Technology, Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, Korea ; Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Yoon YI, Ju KY, Cho HS, Yu KN, Lee JJ, Ahn GJ, Lee SH, Cho MH, Lee HJ, Lee JK, Yoon TJ. Enhancement of cancer specific delivery using ultrasound active bio-originated particles. Chem Commun (Camb) 2015; 51:9455-8. [DOI: 10.1039/c5cc01440a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bio-available microbubble, liposome, and Fe3+ chelated melanin nanoparticle complex with a dual ultrasound and T1-w magnetic resonance imaging modality has been synthesized for the specific targeting of cancer cells.
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Jung HS, Kim YJ, Cho J, Yoon TJ, Lee JK. Silica-coated gradient alloy quantum dots with high luminescence for converter materials in white light-emitting diodes. RSC Adv 2015. [DOI: 10.1039/c5ra24203g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
DMA catalyst played a major role in maintaining the luminescence of the QDs. After silica coating, QD@SiO2 exhibited high stability and retained their initial photoluminescence (PL) intensity in a flexible polymer nanocomposite film.
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Affiliation(s)
- Hak-Sung Jung
- Department of Chemistry
- Seoul National University
- Seoul 151-747
- Korea
| | - Young-Jae Kim
- Department of Chemistry
- Seoul National University
- Seoul 151-747
- Korea
| | - Junsang Cho
- Department of Chemistry
- Seoul National University
- Seoul 151-747
- Korea
| | - Tae-Jong Yoon
- College of Pharmacy
- Ajou University
- Suwon-si
- South Korea
| | - Jin-Kyu Lee
- Department of Chemistry
- Seoul National University
- Seoul 151-747
- Korea
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15
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Yoon YI, Kwon YS, Cho HS, Heo SH, Park KS, Park SG, Lee SH, Hwang SI, Kim YI, Jae HJ, Ahn GJ, Cho YS, Lee H, Lee HJ, Yoon TJ. Ultrasound-mediated gene and drug delivery using a microbubble-liposome particle system. Am J Cancer Res 2014; 4:1133-44. [PMID: 25250094 PMCID: PMC4165777 DOI: 10.7150/thno.9945] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/08/2014] [Indexed: 01/17/2023] Open
Abstract
Theranostic agents present a promising clinical approach for cancer detection and treatment. We herein introduce a microbubble and liposome complex (MB-Lipo) developed for ultrasound (US) imaging and activation. The MB-Lipo particles have a hybrid structure consisting of a MB complexed with multiple Lipos. The MB components are used to generate high echo signals in US imaging, while the Lipos serve as a versatile carrier of therapeutic materials. MB-Lipo allows high contrast US imaging of tumor sites. More importantly, the application of high acoustic pressure bursts MBs, which releases therapeutic Lipos and further enhances their intracellular delivery through sonoporation effect. Both imaging and drug release could thus be achieved by a single US modality, enabling in situ treatment guided by real-time imaging. The MB-Lipo system was applied to specifically deliver anti-cancer drug and genes to tumor cells, which showed enhanced therapeutic effect. We also demonstrate the clinical potential of MB-Lipo by imaging and treating tumor in vivo.
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Jang M, Yoon YI, Kwon YS, Yoon TJ, Lee HJ, Hwang SI, Yun BL, Kim SM. Trastuzumab-conjugated liposome-coated fluorescent magnetic nanoparticles to target breast cancer. Korean J Radiol 2014; 15:411-22. [PMID: 25053899 PMCID: PMC4105802 DOI: 10.3348/kjr.2014.15.4.411] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 05/03/2014] [Indexed: 01/09/2023] Open
Abstract
Objective To synthesize mesoporous silica-core-shell magnetic nanoparticles (MNPs) encapsulated by liposomes (Lipo [MNP@m-SiO2]) in order to enhance their stability, allow them to be used in any buffer solution, and to produce trastuzumab-conjugated (Lipo[MNP@m-SiO2]-Her2Ab) nanoparticles to be utilized in vitro for the targeting of breast cancer. Materials and Methods The physiochemical characteristics of Lipo[MNP@m-SiO2] were assessed in terms of size, morphological features, and in vitro safety. The multimodal imaging properties of the organic dye incorporated into Lipo[MNP@m-SiO2] were assessed with both in vitro fluorescence and MR imaging. The specific targeting ability of trastuzumab (Her2/neu antibody, Herceptin®)-conjugated Lipo[MNP@m-SiO2] for Her2/neu-positive breast cancer cells was also evaluated with fluorescence and MR imaging. Results We obtained uniformly-sized and evenly distributed Lipo[MNP@m-SiO2] that demonstrated biological stability, while not disrupting cell viability. Her2/neu-positive breast cancer cell targeting by trastuzumab-conjugated Lipo[MNP@m-SiO2] was observed by in vitro fluorescence and MR imaging. Conclusion Trastuzumab-conjugated Lipo[MNP@m-SiO2] is a potential treatment tool for targeted drug delivery in Her2/neu-positive breast cancer.
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Affiliation(s)
- Mijung Jang
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Young Il Yoon
- Nanoimaging and Therapy Research Center, Institute of Nanoconvergence, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270, Korea
| | - Yong Soo Kwon
- NanoBio Materials Chemistry Lab., Department of Applied Bioscience, CHA University, Pocheon 487-010, Korea
| | - Tae-Jong Yoon
- Nanoimaging and Therapy Research Center, Institute of Nanoconvergence, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270, Korea. ; NanoBio Materials Chemistry Lab., Department of Applied Bioscience, CHA University, Pocheon 487-010, Korea
| | - Hak Jong Lee
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea. ; Nanoimaging and Therapy Research Center, Institute of Nanoconvergence, Advanced Institutes of Convergence Technology, Seoul National University, Suwon 443-270, Korea. ; Program in Nano Science and Technology, Department of Transdisciplinary Studies, Seoul National University Graduate School of Convergence Science and Technology, Suwon 443-270, Korea
| | - Sung Il Hwang
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Bo La Yun
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
| | - Sun Mi Kim
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam 463-707, Korea
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17
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Yoon YI, Kim KS, Kwon YS, Cho HS, Lee HJ, Yoon CJ, Yoon TJ. Synthesis of Gold Nanoparticles by Electro-reduction Method and Their Application as an Electro-hyperthermia System. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.6.1806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Castro CM, Ghazani AA, Chung J, Shao H, Issadore D, Yoon TJ, Weissleder R, Lee H. Miniaturized nuclear magnetic resonance platform for detection and profiling of circulating tumor cells. Lab Chip 2014; 14:14-23. [PMID: 23835814 PMCID: PMC3844052 DOI: 10.1039/c3lc50621e] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Accurate detection and profiling of circulating tumor cells (CTCs) is a highly sought after technology to improve cancer management. Such "liquid biopsies" could offer a non-invasive, repeatable window into each patient's tumor, facilitating early cancer diagnosis and treatment monitoring. The rarity of CTCs, approximated at 1 CTC for every billion peripheral blood cells, however, poses significant challenges to sensitive and reliable detection. We have recently developed a new micro-nuclear magnetic resonance (μNMR) platform for biosensing. Through the synergistic integration of microfabrication, nanosensors, and novel chemistries, the μNMR platform offers high detection sensitivity and point-of-care operation, overcoming technical barriers in CTC research. We herein review the μNMR technology with emphasis on its application to CTC detection. Recent advances in the sensing technology will be summarized, followed by the description of the dynamic interplay between our preclinical and clinical CTC studies.
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Affiliation(s)
- Cesar M. Castro
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
- Massachusetts General Hospital Cancer Center, Boston, MA 02114
| | - Arezou A. Ghazani
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Jaehoon Chung
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Huilin Shao
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - David Issadore
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
- Massachusetts General Hospital Cancer Center, Boston, MA 02114
- Department of Systems Biology, Harvard Medical School, Boston, MA 02114
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
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Abstract
Imaging based on photoacoustic effect relies on illuminating with short light pulses absorbed by tissue absorbers, resulting in thermoelastic expansion, giving rise to ultrasonic waves. The ultrasonic waves are then detected by detectors placed around the sample. Photoacoustic endoscopy (PAE) is one of four major implementations of photoacoustic tomography that have been developed recently. The prototype PAE was based on scanning mirror system that deflected both the light and the ultrasound. A recently developed mini-probe was further miniaturized, and enabled simultaneous photoacoustic and ultrasound imaging. This PAE-endoscopic ultrasound (EUS) system can offer high-resolution vasculature information in the gastrointestinal (GI) tract and display differences between optical and mechanical contrast compared with single-mode EUS. However, PAE for endoscopic GI imaging is still at the preclinical stage. In this commentary, we describe the technological improvements in PAE for possible clinical application in endoscopic GI imaging. In addition, we discuss the technical details of the ultrasonic transducer incorporated into the photoacoustic endoscopic probe.
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Jang DH, Lee YI, Kim KS, Park ES, Kang SC, Yoon TJ, Choa YH. Induced heat property of polyethyleneglycol-coated iron oxide nanoparticles with dispersion stability for hyperthermia. J Nanosci Nanotechnol 2013; 13:6098-102. [PMID: 24205608 DOI: 10.1166/jnn.2013.7635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Fe3O4 nanoparticles have been used for hyperthermia treatment in an attempt to overcome various problems. When using hyperthermia treamtment, it is critical to control the surface modification of the particles. Magnetic nanoparticles tend to aggregate due to strong magnetic dipole--dipole attractions. The particles then have a high surface area and are of larger sizes, posing serious practical limitations. The nanoparticles are used to generate maximum heat and to maintain a constant heating temperature using the minimum magnetic nanoparticles dosage. In this study, we investigated the effect of PEG coated onto Fe3O4 nanoparticles. We tested the dispersion stability and repetitive heating property of nanoparticles for different PEG concentrations under an AC magnetic field. The results confirmed that the nanoparticles on a colloidal system maintained the heating properties of repetitve inductive heating as PEG concentration increased with dispersion stability. The nanoparticles with superior dispersion stability will be appropriate for hyperthermia applications in cancer treatments.
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Affiliation(s)
- Dae-Hwan Jang
- Department of Bionanotechnology, Hanyang University, Ansan 426-791, Korea
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21
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Affiliation(s)
- Tae-Jong Yoon
- Department of Applied Bioscience, CHA University, Seoul 135-081, Republic of Korea
| | - Huilin Shao
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., Boston, MA 02114, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., Boston, MA 02114, USA, Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St., Boston, MA 02114, USA
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22
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Cha J, Kwon YS, Yoon TJ, Lee JK. Relaxivity control of magnetic nanoclusters for efficient magnetic relaxation switching assay. Chem Commun (Camb) 2013; 49:457-9. [DOI: 10.1039/c2cc36863c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
Magnetic relaxation switching (MRSw) assays that employ target-induced aggregation (or disaggregation) of magnetic nanoparticles (MNPs) can be used to detect a wide range of biomolecules. The precise working mechanisms, however, remain poorly understood, often leading to confounding interpretation. We herein present a systematic and comprehensive characterization of MRSw sensing. By using different types of MNPs with varying physical properties, we analyzed the nature and transverse relaxation modes for MRSw detection. The study found that clustered MNPs are universally in a diffusion-limited fractal state (dimension of ~2.4). Importantly, a new model for transverse relaxation was constructed that accurately recapitulates observed MRSw phenomena and predicts the MRSw detection sensitivities and dynamic ranges.
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Affiliation(s)
- Changwook Min
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
| | - Huilin Shao
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
| | - Monty Liong
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
| | - Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
- Corresponding authors: H. Lee, PhD Center for Systems Biology Massachusetts General Hospital 185 Cambridge St, CPZN 5206 Boston, MA, 02114 617-726-8226 R. Weissleder, MD, PhD Center for Systems Biology Massachusetts General Hospital 185 Cambridge St, CPZN 5206 Boston, MA, 02114 617-726-8226
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, Boston, MA 02114
- Corresponding authors: H. Lee, PhD Center for Systems Biology Massachusetts General Hospital 185 Cambridge St, CPZN 5206 Boston, MA, 02114 617-726-8226 R. Weissleder, MD, PhD Center for Systems Biology Massachusetts General Hospital 185 Cambridge St, CPZN 5206 Boston, MA, 02114 617-726-8226
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Kwon YS, Cho YS, Yoon TJ, Kim HS, Choi MG. Recent advances in targeted endoscopic imaging: Early detection of gastrointestinal neoplasms. World J Gastrointest Endosc 2012; 4:57-64. [PMID: 22442742 PMCID: PMC3309894 DOI: 10.4253/wjge.v4.i3.57] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 01/22/2012] [Accepted: 03/02/2012] [Indexed: 02/05/2023] Open
Abstract
Molecular imaging has emerged as a new discipline in gastrointestinal endoscopy. This technology encompasses modalities that can visualize disease-specific morphological or functional tissue changes based on the molecular signature of individual cells. Molecular imaging has several advantages including minimal damage to tissues, repetitive visualization, and utility for conducting quantitative analyses. Advancements in basic science coupled with endoscopy have made early detection of gastrointestinal cancer possible. Molecular imaging during gastrointestinal endoscopy requires the development of safe biomarkers and exogenous probes to detect molecular changes in cells with high specificity anda high signal-to-background ratio. Additionally, a high-resolution endoscope with an accurate wide-field viewing capability must be developed. Targeted endoscopic imaging is expected to improve early diagnosis and individual therapy of gastrointestinal cancer.
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Affiliation(s)
- Yong-Soo Kwon
- Yong-Soo Kwon, Tae-Jong Yoon, Department of Applied Bioscience, CHA University, Seoul 135081, South Korea
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Choi HI, Choi GI, Kim EK, Choi YJ, Sohn KC, Lee Y, Kim CD, Yoon TJ, Sohn HJ, Han SH, Kim S, Lee JH, Lee YH. Hair greying is associated with active hair growth. Br J Dermatol 2012; 165:1183-9. [PMID: 21916889 DOI: 10.1111/j.1365-2133.2011.10625.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [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
BACKGROUND Hair greying is an obvious sign of ageing in humans. White (nonpigmented) hair is thicker than black (pigmented) hair. The growth rate of white hair is also significantly higher than that of black hair. However, the mechanism underlying this is largely unknown. OBJECTIVES To examine the association between hair greying and hair growth patterns by evaluating expression of the genes or proteins related to hair growth in white and black hairs. METHODS Morphological characteristics were observed in eyebrow and scalp hairs. The differential expression of genes was analysed in black and white hairs from human scalp by a microarray analysis. Reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry for genes and proteins related to hair growth were performed in black and white hairs. RESULTS Keratin and keratin-associated protein (KRTAP) genes in white hair were upregulated at least two-fold in comparison with black hair in a microarray analysis. Upregulation of selected keratin genes and KRTAP4 isoform genes in white hair was validated by RT-PCR. Immunoreactivity for KRT6, KRT14/16 and KRT25 was increased in the hair follicle of white hair compared with black hair. Gene expression of fibroblast growth factor 5 (FGF5) was downregulated in white hair compared with black hair. However, gene expression of FGF7 was upregulated in white hair compared with black hair. CONCLUSIONS Expression of genes and proteins associated with active hair growth is upregulated in white (nonpigmented) hair compared with black (pigmented) hair. These results suggest that hair greying is associated with active hair growth.
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Affiliation(s)
- H I Choi
- Department of Anatomy, Chungnam National University, 55, Munhwa-ro, Daejeon 301-747, Korea
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Shao H, Min C, Issadore D, Liong M, Yoon TJ, Weissleder R, Lee H. Magnetic Nanoparticles and microNMR for Diagnostic Applications. Theranostics 2012; 2:55-65. [PMID: 22272219 PMCID: PMC3263516 DOI: 10.7150/thno.3465] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 10/03/2011] [Indexed: 02/07/2023] Open
Abstract
Sensitive and quantitative measurements of clinically relevant protein biomarkers, pathogens and cells in biological samples would be invaluable for disease diagnosis, monitoring of malignancy, and for evaluating therapy efficacy. Biosensing strategies using magnetic nanoparticles (MNPs) have recently received considerable attention, since they offer unique advantages over traditional detection methods. Specifically, because biological samples have negligible magnetic background, MNPs can be used to obtain highly sensitive measurements in minimally processed samples. This review focuses on the use of MNPs for in vitro detection of cellular biomarkers based on nuclear magnetic resonance (NMR) effects. This detection platform, termed diagnostic magnetic resonance (DMR), exploits MNPs as proximity sensors to modulate the spin-spin relaxation time of water molecules surrounding the molecularly-targeted nanoparticles. With new developments such as more effective MNP biosensors, advanced conjugational strategies, and highly sensitive miniaturized NMR systems, the DMR detection capabilities have been considerably improved. These developments have also enabled parallel and rapid measurements from small sample volumes and on a wide range of targets, including whole cells, proteins, DNA/mRNA, metabolites, drugs, viruses and bacteria. The DMR platform thus makes a robust and easy-to-use sensor system with broad applications in biomedicine, as well as clinical utility in point-of-care settings.
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Yang L, Cho YS, Sajja HK, Karna P, Yoon TJ, Cao Z. WITHDRAWN: Quantum dot-tumor targeting peptide conjugates for in vivo imaging of siRNA expression constructs delivery and silencing in tumors. Biomaterials 2011:S0142-9612(11)01393-7. [PMID: 22169827 DOI: 10.1016/j.biomaterials.2011.11.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 11/16/2011] [Indexed: 01/12/2023]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Lily Yang
- Department of Surgery, Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322, United States
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28
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Kim JH, Minai-Tehrani A, Kim YK, Shin JY, Hong SH, Kim HJ, Lee HD, Chang SH, Yu KN, Bang YB, Cho CS, Yoon TJ, Yu DY, Jiang HL, Cho MH. Suppression of tumor growth in H-ras12V liver cancer mice by delivery of programmed cell death protein 4 using galactosylated poly(ethylene glycol)-chitosan-graft-spermine. Biomaterials 2011; 33:1894-902. [PMID: 22153867 DOI: 10.1016/j.biomaterials.2011.11.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 11/13/2011] [Indexed: 02/04/2023]
Abstract
Non-viral gene delivery systems based on polyethyleneimine (PEI) are efficient due to their proton-sponge effect within endosomes, but they have poor physical characteristics such as slow dissociation, cytotoxicity, and non targeted gene delivery. To overcome many of the problems associated with PEI, we synthesized a galactosylated poly(ethylene glycol)-chitosan-graft-spermine (GPCS) copolymer with low cytotoxicity and optimal gene delivery to hepatocytes using an amide bond between galactosylated poly(ethylene glycol) and chitosan-graft-spermine. The GPCS copolymer formed complexes with plasmid DNA, and the GPCS/DNA complexes had well-formed spherical shapes. The GPCS/DNA complexes were nanoscale size with homogenous size distribution and a positive zeta potential by dynamic light scattering (DLS). The GPCS copolymer had lower cytotoxicity than that of PEI 25K in HepG2, HeLa, and A549 cell lines at various concentrations and showed good hepatocyte-targeting ability. Furthermore, GPCS/DNA complexes showed higher levels of GFP expression in the liver in model mice after intravenous injection than naked DNA and metoxy-poly(ethylene glycol)-chitosan-graft-spermine as controls without remarkable fibrosis, inflammation, lipidosis, or necrosis. In a tumor suppression study, an intravenous injection of the GPCS/Pdcd4 complexes significantly suppressed tumor growth, activated apoptosis, and suppressed proliferation and angiogenesis in liver tumor-bearing H-ras12V mice. Our results indicate that the GPCS copolymer has potential as a hepatocyte-targeting gene carrier.
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Affiliation(s)
- Ji-Hye Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Republic of Korea
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Yoon TJ, Lee H, Shao H, Hilderbrand SA, Weissleder R. Multicore assemblies potentiate magnetic properties of biomagnetic nanoparticles. Adv Mater 2011; 23:4793-7. [PMID: 21953810 PMCID: PMC3224986 DOI: 10.1002/adma.201102948] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 09/01/2011] [Indexed: 05/18/2023]
Affiliation(s)
- Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA 02114, USA
- Department of Applied Bioscience, CHA University, Seoul 135-081, Republic of Korea
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA 02114, USA
| | - Huilin Shao
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA 02114, USA
| | - Scott A. Hilderbrand
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA 02114, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, Boston, MA 02114, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave., Alpert 536, Boston, MA 02115, USA
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Abstract
The rapid and sensitive detection of molecular targets such as proteins, cells, and pathogens in biological specimens is a major focus of ongoing medical research, as it could promote early disease diagnoses and the development of tailored therapeutic strategies. Magnetic nanoparticles (MNP) are attractive candidates for molecular biosensing applications because most biological samples exhibit negligible magnetic susceptibility, and thus the background against which measurements are made is extremely low. Numerous magnetic detection methods exist, but sensing based on magnetic resonance effects has successfully been developed into a general detection platform termed diagnostic magnetic resonance (DMR). DMR technology encompasses numerous assay configurations and sensing principles, and to date magnetic nanoparticle biosensors have been designed to detect a wide range of targets including DNA/mRNA, proteins, enzymes, drugs, pathogens, and tumor cells with exquisite sensitivity. The core principle behind DMR is the use of MNP as proximity sensors that modulate the transverse relaxation time of neighboring water molecules. This signal can be quantified using MR imagers or NMR relaxometers, including miniaturized NMR detector chips that are capable of performing highly sensitive measurements on microliter sample volumes and in a multiplexed format. The speed, sensitivity, and simplicity of the DMR principle, coupled with further advances in NMR biosensor technology should provide a high-throughput, low-cost, and portable platform for large-scale parallel sensing in clinical and point-of-care settings.
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Affiliation(s)
- Jered B Haun
- Center for Systems Biology, Department of Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Yoon TJ, Lee H, Shao H, Weissleder R. Highly magnetic core-shell nanoparticles with a unique magnetization mechanism. Angew Chem Int Ed Engl 2011; 50:4663-6. [PMID: 21495138 DOI: 10.1002/anie.201100101] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Revised: 03/03/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital/Harvard Medical School, Boston, 02114, USA
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Yu KN, Minai-Tehrani A, Chang SH, Hwang SK, Hong SH, Kim JE, Shin JY, Park SJ, Kim JH, Kwon JT, Jiang HL, Kang B, Kim D, Chae CH, Lee KH, Yoon TJ, Beck GR, Cho MH. Aerosol delivery of small hairpin osteopontin blocks pulmonary metastasis of breast cancer in mice. PLoS One 2010; 5:e15623. [PMID: 21203518 PMCID: PMC3008732 DOI: 10.1371/journal.pone.0015623] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 11/17/2010] [Indexed: 11/19/2022] Open
Abstract
Background Metastasis to the lung may be the final step in the breast cancer-related morbidity. Conventional therapies such as chemotherapy and surgery are somewhat successful, however, metastasis-related breast cancer morbidity remains high. Thus, a novel approach to prevent breast tumor metastasis is needed. Methodology/Principal Finding Aerosol of lentivirus-based small hairpin osteopontin was delivered into mice with breast cancer twice a week for 1 or 2 months using a nose-only inhalation system. The effects of small hairpin osteopontin on breast cancer metastasis to the lung were evaluated using near infrared imaging as well as diverse molecular techniques. Aerosol-delivered small hairpin osteopontin significantly decreased the expression level of osteopontin and altered the expression of several important metastasis-related proteins in our murine breast cancer model. Conclusion/Significance Aerosol-delivered small hairpin osteopontin blocked breast cancer metastasis. Our results showed that noninvasive targeting of pulmonary osteopontin or other specific genes responsible for cancer metastasis could be used as an effective therapeutic regimen for the treatment of metastatic epithelial tumors.
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Affiliation(s)
- Kyeong-Nam Yu
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Arash Minai-Tehrani
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seung-Hee Chang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Soon-Kyung Hwang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seong-Ho Hong
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Eun Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Ji-Young Shin
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Sung-Jin Park
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Ji-Hye Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
| | - Jung-Taek Kwon
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hu-Lin Jiang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Bitna Kang
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Duyeol Kim
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Chan-Hee Chae
- Laboratory of Pathology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Kee-Ho Lee
- Laboratory of Molecular Oncology, Division of Radiation Cancer Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Tae-Jong Yoon
- Department of Applied BioScience, CHA University, Seoul, Republic of Korea
| | - George R. Beck
- Division of Endocrinology, Metabolism, and Lipids, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Myung-Haing Cho
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Nano Fusion Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
- Graduate Group of Tumor Biology, Seoul National University, Seoul, Republic of Korea
- * E-mail:
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Kim K, Doi A, Wen B, Ng K, Zhao R, Cahan P, Kim J, Aryee MJ, Ji H, Ehrlich L, Yabuuchi A, Takeuchi A, Cunniff KC, Hongguang H, Mckinney-Freeman S, Naveiras O, Yoon TJ, Irizarry RA, Jung N, Seita J, Hanna J, Murakami P, Jaenisch R, Weissleder R, Orkin SH, Weissman IL, Feinberg AP, Daley GQ. Epigenetic memory in induced pluripotent stem cells. Nature 2010; 467:285-90. [PMID: 20644535 PMCID: PMC3150836 DOI: 10.1038/nature09342] [Citation(s) in RCA: 1617] [Impact Index Per Article: 115.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Accepted: 07/12/2010] [Indexed: 11/09/2022]
Abstract
Somatic cell nuclear transfer and transcription-factor-based reprogramming revert adult cells to an embryonic state, and yield pluripotent stem cells that can generate all tissues. Through different mechanisms and kinetics, these two reprogramming methods reset genomic methylation, an epigenetic modification of DNA that influences gene expression, leading us to hypothesize that the resulting pluripotent stem cells might have different properties. Here we observe that low-passage induced pluripotent stem cells (iPSCs) derived by factor-based reprogramming of adult murine tissues harbour residual DNA methylation signatures characteristic of their somatic tissue of origin, which favours their differentiation along lineages related to the donor cell, while restricting alternative cell fates. Such an 'epigenetic memory' of the donor tissue could be reset by differentiation and serial reprogramming, or by treatment of iPSCs with chromatin-modifying drugs. In contrast, the differentiation and methylation of nuclear-transfer-derived pluripotent stem cells were more similar to classical embryonic stem cells than were iPSCs. Our data indicate that nuclear transfer is more effective at establishing the ground state of pluripotency than factor-based reprogramming, which can leave an epigenetic memory of the tissue of origin that may influence efforts at directed differentiation for applications in disease modelling or treatment.
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Affiliation(s)
- K Kim
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - A Doi
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - B Wen
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - K Ng
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - R Zhao
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - P Cahan
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - J Kim
- Department of Pediatric Oncology, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Boston, MA 02115, USA
| | - MJ Aryee
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland, USA
| | - H Ji
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - L Ehrlich
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California 94305, USA
| | - A Yabuuchi
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - A Takeuchi
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - KC Cunniff
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - H Hongguang
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - S Mckinney-Freeman
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - O Naveiras
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
| | - TJ Yoon
- Center for Systems Biology, Massachusetts General Hospital / Harvard Medical School, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA
| | - RA Irizarry
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - N Jung
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - J Seita
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California 94305, USA
| | - J Hanna
- Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - P Murakami
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - R Jaenisch
- Whitehead Institute for Biomedical Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - R Weissleder
- Center for Systems Biology, Massachusetts General Hospital / Harvard Medical School, 185 Cambridge Street, CPZN 5206, Boston, MA 02114, USA
| | - SH Orkin
- Department of Pediatric Oncology, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Boston, MA 02115, USA
| | - IL Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California 94305, USA
| | - AP Feinberg
- Center for Epigenetics and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - GQ Daley
- Stem Cell Transplantation Program, Division of Pediatric Hematology/Oncology, Manton Center for Orphan Disease Research, Howard Hughes Medical Institute, Children’s Hospital Boston and Dana Farber Cancer Institute; Division of Hematology, Brigham and Women’s Hospital; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School; Harvard Stem Cell Institute; Boston, MA 02115, USA
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Cho YS, Yoon TJ, Jang ES, Soo Hong K, Young Lee S, Ran Kim O, Park C, Kim YJ, Yi GC, Chang K. Cetuximab-conjugated magneto-fluorescent silica nanoparticles for in vivo colon cancer targeting and imaging. Cancer Lett 2010; 299:63-71. [PMID: 20826046 DOI: 10.1016/j.canlet.2010.08.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Revised: 08/02/2010] [Accepted: 08/09/2010] [Indexed: 12/14/2022]
Abstract
Magneto-fluorescent silica nanoparticles were conjugated with cetuximab for the targeting and imaging of colon cancer. In this study, cetuximab-conjugated magneto-fluorescent nanoparticles (MFSN-Ctx) could specifically target colon cancer cells that expressed EGFR on their cell membranes, and specific fluorescence was detected. MFSN-Ctx produced significant MRI signal changes in a human colon cancer xenograft mouse model. Intravenous injection of MFSN-Ctx resulted in faster uptake as compared to intraperitoneal injection, indicating that MFSN-Ctx had different kinetic properties in tumors based on the method of injection. The local concentration of MFSN-Ctx in a tumor was amplified by the use of an external magnetic field. These results demonstrate the potential application of MFSN-Ctx for the detection of EGFR-expressing colon cancer using in vivo imaging approaches.
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Affiliation(s)
- Young-Seok Cho
- Department of Internal Medicine, The Catholic University of Korea, 505, Banpo-dong, Seoul 137701, Republic of Korea
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Abstract
One of the major challenges in medicine is the rapid and accurate measurement of protein biomarkers, cells, and pathogens in biological samples. A number of new diagnostic platforms have recently been developed to measure biomolecules and cells with high sensitivity that could enable early disease detection or provide valuable insights into biology at the systems level. Most biological samples exhibit negligible magnetic susceptibility; therefore, magnetic nanoparticles have been used for diverse applications including biosensing, magnetic separation, and thermal ablation therapy. This review focuses on the use of magnetic nanoparticles for detection of biomolecules and cells based on magnetic resonance effects using a general detection platform termed diagnostic magnetic resonance (DMR). DMR technology encompasses numerous assay configurations and sensing principles, and to date magnetic nanoparticle biosensors have been designed to detect a wide range of targets including DNA/mRNA, proteins, enzymes, drugs, pathogens, and tumor cells. The core principle behind DMR is the use of magnetic nanoparticles as proximity sensors that modulate the spin-spin relaxation time of neighboring water molecules, which can be quantified using clinical MRI scanners or benchtop nuclear magnetic resonance (NMR) relaxometers. Recently, the capabilities of DMR technology were advanced considerably with the development of miniaturized, chip-based NMR (microNMR) detector systems that are capable of performing highly sensitive measurements on microliter sample volumes and in multiplexed format. With these and future advances in mind, DMR biosensor technology holds considerable promise to provide a high-throughput, low-cost, and portable platform for large scale molecular and cellular screening in clinical and point-of-care settings.
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Affiliation(s)
- Jered B Haun
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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37
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Kim SH, Kim S, Choi HI, Choi YJ, Lee YS, Sohn KC, Lee Y, Kim CD, Yoon TJ, Lee JH, Lee YH. Callus formation is associated with hyperproliferation and incomplete differentiation of keratinocytes, and increased expression of adhesion molecules. Br J Dermatol 2010; 163:495-501. [PMID: 20456341 DOI: 10.1111/j.1365-2133.2010.09842.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND A callus is a local thickening of skin, characterized by accelerated keratinization and a reduced rate of desquamation. However, the mechanism of callus formation is not fully understood. OBJECTIVES To evaluate the expression patterns, in callused skin, of genes that are implicated in keratinization and adhesion/desquamation. METHODS Samples of skin from the dorsum of the foot (DF), centre of the plantar arch (CP) and anterior aspect of the heel (AH) were obtained from fresh cadavers, and protein and gene expression were determined by immunohistochemistry and reverse transcription-polymerase chain reaction, respectively. RESULTS The stratum corneum in the DF showed a splitting phenotype by conventional haematoxylin and eosin staining, while the stratum corneum was normal in the AH. Cells of the stratum corneum in the AH were nonsquamous. Expression of cornification-related molecules including involucrin, filaggrin, caspase 14 and calcium-sensing receptor was higher in the AH. Similarly, expression of adhesive proteins such as corneodesmosin, desmoglein 1 and desmocollin 1 was increased in the AH. However, protease-activated receptor 2 expression was reduced in the stratum granulosum in the AH. The number of proliferating cells in the stratum basale was significantly increased in the AH, compared with the DF and CP. CONCLUSIONS Our data suggest that calluses form as a result of hyperproliferation and incomplete differentiation of epidermal keratinocytes, and increased expression of adhesion molecules.
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Affiliation(s)
- S H Kim
- Department of Anatomy, Research Institute for Medical Sciences, School of Medicine, Chungnam National University, 55 Munhwa-ro, Daejeon 301-747, Korea
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Shao H, Yoon TJ, Liong M, Weissleder R, Lee H. Magnetic nanoparticles for biomedical NMR-based diagnostics. Beilstein J Nanotechnol 2010; 1:142-54. [PMID: 21977404 PMCID: PMC3045933 DOI: 10.3762/bjnano.1.17] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 11/17/2010] [Indexed: 05/18/2023]
Abstract
Rapid and accurate measurements of protein biomarkers, pathogens and cells in biological samples could provide useful information for early disease diagnosis, treatment monitoring, and design of personalized medicine. In general, biological samples have only negligible magnetic susceptibility. Thus, using magnetic nanoparticles for biosensing not only enhances sensitivity but also effectively reduces sample preparation needs. This review focuses on the use of magnetic nanoparticles for in vitro detection of biomolecules and cells based on magnetic resonance effects. This detection platform, termed diagnostic magnetic resonance (DMR), exploits magnetic nanoparticles as proximity sensors, which modulate the spin-spin relaxation time of water molecules surrounding molecularly-targeted nanoparticles. By developing more effective magnetic nanoparticle biosensors, DMR detection limits for various target moieties have been considerably improved over the last few years. Already, a library of magnetic nanoparticles has been developed, in which a wide range of targets, including DNA/mRNA, proteins, small molecules/drugs, bacteria, and tumor cells, have been quantified. More recently, the capabilities of DMR technology have been further advanced with new developments such as miniaturized nuclear magnetic resonance detectors, better magnetic nanoparticles and novel conjugational methods. These developments have enabled parallel and sensitive measurements to be made from small volume samples. Thus, the DMR technology is a highly attractive platform for portable, low-cost, and efficient biomolecular detection within a biomedical setting.
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Affiliation(s)
- Huilin Shao
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, U.S.A
| | - Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, U.S.A
- Department of Applied Bioscience, CHA University, Seoul 135-081, Korea
| | - Monty Liong
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, U.S.A
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, U.S.A
- Department of Systems Biology, Harvard Medical School, 200 Longwood Av, Alpert 536, Boston, MA 02115, U.S.A
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, U.S.A
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Lee H, Yoon TJ, Weissleder R. Ultrasensitive detection of bacteria using core-shell nanoparticles and an NMR-filter system. Angew Chem Int Ed Engl 2009; 48:5657-60. [PMID: 19554581 DOI: 10.1002/anie.200901791] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital/Harvard Medical School, 185 Cambridge Street, Boston, MA 02114, USA
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Lee H, Yoon TJ, Figueiredo JL, Swirski FK, Weissleder R. Rapid detection and profiling of cancer cells in fine-needle aspirates. Proc Natl Acad Sci U S A 2009; 106:12459-64. [PMID: 19620715 PMCID: PMC2718371 DOI: 10.1073/pnas.0902365106] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2009] [Indexed: 01/18/2023] Open
Abstract
There is a growing need for fast, highly sensitive and quantitative technologies to detect and profile unaltered cells in biological samples. Technologies in current clinical use are often time consuming, expensive, or require considerable sample sizes. Here, we report a diagnostic magnetic resonance (DMR) sensor that combines a miniaturized NMR probe with targeted magnetic nanoparticles for detection and molecular profiling of cancer cells. The sensor measures the transverse relaxation rate of water molecules in biological samples in which target cells of interest are labeled with magnetic nanoparticles. We achieved remarkable sensitivity improvements over our prior DMR prototypes by synthesizing new nanoparticles with higher transverse relaxivity and by optimizing assay protocols. We detected as few as 2 cancer cells in 1-microL sample volumes of unprocessed fine-needle aspirates of tumors and profiled the expression of several cellular markers in <15 min.
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MESH Headings
- Animals
- Biopsy, Fine-Needle
- Biosensing Techniques
- Blotting, Western
- Cell Count
- Cell Line, Tumor
- Cytodiagnosis/instrumentation
- Cytodiagnosis/methods
- Female
- Flow Cytometry
- Humans
- Leukocytes/cytology
- Leukocytes/metabolism
- Magnetic Resonance Spectroscopy/instrumentation
- Magnetic Resonance Spectroscopy/methods
- Magnetics
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Nude
- Microfluidic Analytical Techniques
- Microscopy, Electron, Transmission
- Nanoparticles/chemistry
- Nanoparticles/ultrastructure
- Neoplasms/metabolism
- Neoplasms/pathology
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Receptor, ErbB-2/metabolism
- Reproducibility of Results
- Sensitivity and Specificity
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Affiliation(s)
- Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114; and
| | - Tae-Jong Yoon
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114; and
| | - Jose-Luiz Figueiredo
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114; and
| | - Filip K. Swirski
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114; and
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge Street, CPZN 5206, Boston, MA 02114; and
- Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Alpert 536, Boston, MA 02115
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Lee H, Yoon TJ, Weissleder R. Ultrasensitive Detection of Bacteria Using Core-Shell Nanoparticles and an NMR-Filter System. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901791] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Kwon JT, Hwang SK, Jin H, Kim DS, Minai-Tehrani A, Yoon HJ, Choi M, Yoon TJ, Han DY, Kang YW, Yoon BI, Lee JK, Cho MH. Body distribution of inhaled fluorescent magnetic nanoparticles in the mice. J Occup Health 2008; 50:1-6. [PMID: 18285638 DOI: 10.1539/joh.50.1] [Citation(s) in RCA: 132] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reducing the particle size of materials is an efficient and reliable tool for improving the bioavailability of a gene or drug delivery system. In fact, nanotechnology helps in overcoming the limitations of size and can change the outlook of the world regarding science. However, a potential harmful effect of nanomaterial on workers manufacturing nanoparticles is expected in the workplace and the lack of information regarding body distribution of inhaled nanoparticles may pose serious problem. In this study, we addressed this question by studying the body distribution of inhaled nanoparticles in mice using approximately 50-nm fluorescent magnetic nanoparticles (FMNPs) as a model of nanoparticles through nose-only exposure chamber system developed by our group. Scanning mobility particle sizer (SMPS) analysis revealed that the mice were exposed to FMNPs with a total particle number of 4.89 x 10(5) +/- 2.37 x 10(4)/cm(3) (low concentration) and 9.34 x 10(5) +/- 5.11 x 10(4)/cm(3) (high concentration) for 4 wk (4 h/d, 5 d/wk). The body distribution of FMNPs was examined by magnetic resonance imaging (MRI) and Confocal Laser Scanning Microscope (CLSM) analysis. FMNPs were distributed in various organs, including the liver, testis, spleen, lung and brain. T2-weighted spin-echo MR images showed that FMNPs could penetrate the blood-brain-barrier (BBB). Application of nanotechnologies should not produce adverse effects on human health and the environment. To predict and prevent the potential toxicity of nanomaterials, therefore, extensive studies should be performed under different routes of exposure with different sizes and shapes of nanomaterials.
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Affiliation(s)
- Jung-Taek Kwon
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul, Korea
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Kim JS, Yoon TJ, Yu KN, Noh MS, Woo M, Kim BG, Lee KH, Sohn BH, Park SB, Lee JK, Cho MH. Cellular uptake of magnetic nanoparticle is mediated through energy-dependent endocytosis in A549 cells. J Vet Sci 2007; 7:321-6. [PMID: 17106221 PMCID: PMC3242138 DOI: 10.4142/jvs.2006.7.4.321] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Biocompatible silica-overcoated magnetic nanoparticles containing an organic fluorescence dye, rhodamine B isothiocyanate (RITC), within a silica shell [50 nm size, MNP@SiO2(RITC)s] were synthesized. For future application of the MNP@SiO2(RITC)s into diverse areas of research such as drug or gene delivery, bioimaging, and biosensors, detailed information of the cellular uptake process of the nanoparticles is essential. Thus, this study was performed to elucidate the precise mechanism by which the lung cancer cells uptake the magnetic nanoparticles. Lung cells were chosen for this study because inhalation is the most likely route of exposure and lung cancer cells were also found to uptake magnetic nanoparticles rapidly in preliminary experiments. The lung cells were pretreated with different metabolic inhibitors. Our results revealed that low temperature disturbed the uptake of magnetic nanoparticles into the cells. Metabolic inhibitors also prevented the delivery of the materials into cells. Use of TEM clearly demonstrated that uptake of the nanoparticles was mediated through endosomes. Taken together, our results demonstrate that magnetic nanoparticles can be internalized into the cells through an energy-dependent endosomal-lysosomal mechanism.
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Affiliation(s)
- Jun-Sung Kim
- Laboratory of Toxicology, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
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Johng HM, Yoo JS, Yoon TJ, Shin HS, Lee BC, Lee C, Lee JK, Soh KS. Use of magnetic nanoparticles to visualize threadlike structures inside lymphatic vessels of rats. Evid Based Complement Alternat Med 2006; 4:77-82. [PMID: 17342244 PMCID: PMC1810370 DOI: 10.1093/ecam/nel057] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2005] [Accepted: 07/25/2006] [Indexed: 11/14/2022]
Abstract
A novel application of fluorescent magnetic nanoparticles was made to visualize a new tissue which had not been detectable by using simple stereomicroscopes. This unfamiliar threadlike structure inside the lymphatic vessels of rats was demonstrated in vivo by injecting nanoparticles into lymph nodes and applying magnetic fields on the collecting lymph vessels so that the nanoparticles were taken up by the threadlike structures. Confocal laser scanning microscope images of cryosectioned specimens exhibited that the nanoparticles were absorbed more strongly by the threadlike structure than by the lymphatic vessels. Further examination using a transmission electron microscope revealed that the nanoparticles had been captured between the reticular fibers in the extracellular matrix of the threadlike structures. The emerging technology of nanoparticles not only allows the extremely elusive threadlike structures to be visualized but also is expected to provide a magnetically controllable means to investigate their physiological functions.
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Affiliation(s)
- Hyeon-Min Johng
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Jung Sun Yoo
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Tae-Jong Yoon
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Hak-Soo Shin
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Byung-Cheon Lee
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Changhoon Lee
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Jin-Kyu Lee
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
| | - Kwang-Sup Soh
- Biomedical Physics Laboratory, FPRD School of Physics and Astronomy, Materials Chemistry Laboratory School of Chemistry and Research Institute of Basic Sciences Seoul National University, Seoul, Korea
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Yoon TJ, Yu KN, Kim E, Kim JS, Kim BG, Yun SH, Sohn BH, Cho MH, Lee JK, Park SB. Specific targeting, cell sorting, and bioimaging with smart magnetic silica core-shell nanomaterials. Small 2006; 2:209-15. [PMID: 17193022 DOI: 10.1002/smll.200500360] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Affiliation(s)
- Tae-Jong Yoon
- School of Chemistry, Seoul National University, Seoul, 151-747, Korea
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Kim JS, Yoon TJ, Yu KN, Kim BG, Park SJ, Kim HW, Lee KH, Park SB, Lee JK, Cho MH. Toxicity and tissue distribution of magnetic nanoparticles in mice. Toxicol Sci 2005; 89:338-47. [PMID: 16237191 DOI: 10.1093/toxsci/kfj027] [Citation(s) in RCA: 361] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The development of technology enables the reduction of material size in science. The use of particle reduction in size from micro to nanoscale not only provides benefits to diverse scientific fields but also poses potential risks to humans and the environment. For the successful application of nanomaterials in bioscience, it is essential to understand the biological fate and potential toxicity of nanoparticles. The aim of this study was to evaluate the biological distribution as well as the potential toxicity of magnetic nanoparticles to enable their diverse applications in life science, such as drug development, protein detection, and gene delivery. We recently synthesized biocompatible silica-overcoated magnetic nanoparticles containing rhodamine B isothiocyanate (RITC) within a silica shell of controllable thickness [MNPs@SiO2(RITC)]. In this study, the MNPs@SiO2(RITC) with 50-nm thickness were used as a model nanomaterial. After intraperitoneal administration of MNPs@SiO2(RITC) for 4 weeks into mice, the nanoparticles were detected in the brain, indicating that such nanosized materials can penetrate blood-brain barrier (BBB) without disturbing its function or producing apparent toxicity. After a 4-week observation, MNPs@SiO2(RITC) was still present in various organs without causing apparent toxicity. Taken together, our results demonstrated that magnetic nanoparticles of 50-nm size did not cause apparent toxicity under the experimental conditions of this study.
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Affiliation(s)
- Jun Sung Kim
- Laboratory of Toxicology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul 151-742, Korea
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Yoon TJ, Kim JS, Kim BG, Yu KN, Cho MH, Lee JK. Multifunctional Nanoparticles Possessing A “Magnetic Motor Effect” for Drug or Gene Delivery. Angew Chem Int Ed Engl 2005; 44:1068-1071. [PMID: 15635729 DOI: 10.1002/anie.200461910] [Citation(s) in RCA: 360] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tae-Jong Yoon
- Materials Chemistry Laboratory, School of Chemistry, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-882-1080
| | - Jun Sung Kim
- Laboratory of Toxicology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-873-1268
| | - Byung Geol Kim
- Materials Chemistry Laboratory, School of Chemistry, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-882-1080
| | - Kyeong Nam Yu
- Laboratory of Toxicology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-873-1268
| | - Myung-Haing Cho
- Laboratory of Toxicology, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-873-1268
| | - Jin-Kyu Lee
- Materials Chemistry Laboratory, School of Chemistry, Seoul National University, Seoul, 151-747, Korea, Fax: (+82) 2-882-1080
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Yoon TJ, Kim JI, Lee JK. Rh-based olefin hydroformylation catalysts and the change of their catalytic activity depending on the size of immobilizing supporters. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01354-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yoon TJ, Lee W, Oh YS, Lee JK. Magnetic nanoparticles as a catalyst vehicle for simple and easy recyclingElectronic supplementary information (ESI) available: XRD and FT-IR data, as well as the detailed experimental conditions for the catalytic hydroformylation reactions. See http://www.rsc.org/suppdata/nj/b2/b209391j/. NEW J CHEM 2003. [DOI: 10.1039/b209391j] [Citation(s) in RCA: 234] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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