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Gormley AJ, Larson N, Sadekar S, Robinson R, Ray A, Ghandehari H. Guided Delivery of Polymer Therapeutics Using Plasmonic Photothermal Therapy. NANO TODAY 2012; 7:158-167. [PMID: 22737178 PMCID: PMC3380374 DOI: 10.1016/j.nantod.2012.04.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In most drug delivery systems the clinician does not have control over the location of drug delivery after the therapeutic has been administered. As the location of the tumor mass is often known in many patients, a therapy system which enables the clinician to play an active role in nanomedicine localization would provide an advantage. Here, we show a new approach wherein a laser can be used to tag tumor tissue and enhance the delivery of targeted polymer therapeutics. Plasmonic gold nanorods are delivered to the cancerous tissue and heated by a laser to promote a targetable, hyperthermic response. Concurrent administration of a heat shock targeted polymer therapeutic thereby enhances site specific delivery.
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Affiliation(s)
- Adam J. Gormley
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84108, USA
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
| | - Nate Larson
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84108, USA
| | - Shraddha Sadekar
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84108, USA
| | - Ryan Robinson
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84108, USA
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
| | - Abhijit Ray
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84108, USA
| | - Hamidreza Ghandehari
- Department of Bioengineering, University of Utah, Salt Lake City, UT, 84108, USA
- Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, 84108, USA
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84108, USA
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Gormley AJ, Greish K, Ray A, Robinson R, Gustafson JA, Ghandehari H. Gold nanorod mediated plasmonic photothermal therapy: a tool to enhance macromolecular delivery. Int J Pharm 2011; 415:315-8. [PMID: 21669265 DOI: 10.1016/j.ijpharm.2011.05.068] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Revised: 05/17/2011] [Accepted: 05/26/2011] [Indexed: 11/19/2022]
Abstract
Plasmonic photothermal therapy (PPTT) with gold nanostructures has been used to generate significant heat within tumors to ablate vasculature. Here we report the use of gold nanorod (GNR) mediated PPTT to induce moderate hyperthermia as a tool to enhance the delivery of macromolecules. GNRs were injected intravenously in a mouse sarcoma (S-180) tumor model. After 24h Evans blue dye (EBD) was injected and the right tumor was radiated with a laser diode for 10 min. EBD content in the right and left tumors were extracted in formamide, measured spectrophotometrically and expressed as a thermal enhancement ratio (TER). Enhanced delivery of EBD was observed (up to 1.8-fold) when tumor temperatures reached 43°C or 46°C. No statistical difference was observed between tumors at these two temperatures, though significant hemorrhage was observed in tumors and surrounding areas receiving the higher thermal dose (46°C). These results indicate that tumor directed PPTT may be used to induce moderate hyperthermia and therefore selectively increase the delivery of macromolecules with therapeutic anticancer drugs.
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Affiliation(s)
- Adam J Gormley
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84108, USA
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Zhou M, Zhang A, Lin B, Liu J, Xu LX. Study of heat shock response of human umbilical vein endothelial cells (HUVECs) using cDNA microarray. Int J Hyperthermia 2009; 23:225-58. [PMID: 17523017 DOI: 10.1080/02656730701295441] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Genetic response of human umbilical vein cells (HUVECs) to heat shock was studied using gene expression analysis. HUVECs were subjected to heat treatment at 44 degrees C and 55 degrees C for 1 h, respectively. Four hours after the treatment, gene expression of the treated cells and control cells (37 degrees C) were profiled using cDNA microarray. Data were analyzed using bioinformatics tools, and the results were verified by real-time quantitative PCR experiment. It has been shown that a large number of genes were regulated indicating global response to heat treatment at the genetic level.
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Affiliation(s)
- M Zhou
- Key Laboratory of Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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Xu LX, Zhang A, Liu P, Chen C, Sun J, Sabados DM. Energy-based diagnostic and treatment techniques. IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE : THE QUARTERLY MAGAZINE OF THE ENGINEERING IN MEDICINE & BIOLOGY SOCIETY 2008; 27:72-77. [PMID: 18799393 DOI: 10.1109/memb.2008.923960] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Lisa X Xu
- School of Life Sciences and Technology, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, People's Republic of China.
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Zhou M, Zhang A, Hu X, Liu P, Xu LX. Heat shock induced apoptosis in normal and tumor human umbilical vein cells (HUVECs). ACTA ACUST UNITED AC 2007; 2007:3548-51. [PMID: 18002763 DOI: 10.1109/iembs.2007.4353097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Human endothelial cell injury may play an important role tumor damage hyperthermia in vivo. In this study, human umbilical vein cells were heat shocked in vitro at different temperatures (41-55 degrees C). Cells were observed 0, 12, 24, 36, 48, 60 and 72 hours after heat shock. By incrementally increasing the heat load from 41-55 degrees C, we observed a gradually increase in apoptosis with a significant change from apoptotic to necrotic death at temperature beyond 45 degrees C. Further, an in vitro human breast tumor endothelial cell model was established to compare the heat shock response between normal and tumor endothelial cells.
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Affiliation(s)
- Mingjie Zhou
- School of Life Science and Technology, Shanghai Jiaotong University, Shanghai, P.R. China
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