MRI Monitoring of Tumor-Selective Anticancer Drug Delivery with Stable Thermosensitive Liposomes Triggered by High-Intensity Focused Ultrasound
- Authors
- Kim, HR[Kim, Hyun Ryoung]; You, DG[You, Dong Gil]; Park, SJ[Park, Sang-Jun]; Choi, KS[Choi, Kyu-Sil]; Um, W[Um, Wooram]; Kim, JH[Kim, Jae-Hun]; Park, JH[Park, Jae Hyung]; Kim, YS[Kim, Young-sun]
- Issue Date
- May-2016
- Publisher
- AMER CHEMICAL SOC
- Keywords
- thermosensitive liposome; MRI; heat-triggered drug release; elastin-like polypeptide; drug release monitoring; intratumoral accumulation
- Citation
- MOLECULAR PHARMACEUTICS, v.13, no.5, pp.1528 - 1539
- Indexed
- SCIE
SCOPUS
- Journal Title
- MOLECULAR PHARMACEUTICS
- Volume
- 13
- Number
- 5
- Start Page
- 1528
- End Page
- 1539
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/36642
- DOI
- 10.1021/acs.molpharmaceut.5b00013
- ISSN
- 1543-8384
- Abstract
- Monitoring of drug release from a heat-activated liposome carrier provides an opportunity for real-time control of drug delivery and allows prediction of the therapeutic effect. We have developed short-chain elastin-like polypeptide-incorporating thermosensitive liposomes (STLs). Here, we report the development of STL encapsulating gadobenate dimeglumine (Gd-BOPTA), a MRI contrast agent, and doxorubicin (Dox) (Gd-Dox-STL). The Dox release profile from Gd-Dox-STL was comparable to Gd-Dox-LTSL; however, the serum stability of Gd-Dox-STL was much higher than Gd-Dox-LTSL. MRI studies showed that the difference in T1 relaxation time between 37 and 42 degrees C for Gd-Dox-STL was larger than the difference for Gd-Dox-LTSL. Although relaxivity for both liposomes at 42 degrees C was similar, the relaxivity of Gd-Dox-STL at 37 degrees C was 2.5-fold lower than that of Gd-Dox-LTSL. This was likely due to Gd-BOPTA leakage from the LTSL because of low stability at 37 degrees C. Pharmacokinetic studies showed plasma half-lives of 4.85 and 1.95 h for Gd-Dox-STL and Gd-Dox-LTSL, respectively, consistent with in vitro stability data. In vivo MRI experiments demonstrated corelease of Dox and Gd-BOPTA from STL under mild hyperthermia induced by high-intensity focused ultrasound (HIFU), which suggests STL is a promising tumor selective formulation when coupled with MR-guided HIFU.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Engineering > Chemical Engineering > 1. Journal Articles
- Engineering > School of Chemical Engineering > 1. Journal Articles
- Medicine > Department of Medicine > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/36642)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.