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Huang H, Wang D, Zhang Y, Zhou Y, Geng J, Chitgupi U, Cook TR, Xia J, Lovell JF. Axial PEGylation of Tin Octabutoxy Naphthalocyanine Extends Blood Circulation for Photoacoustic Vascular Imaging. Bioconjug Chem 2016; 27:1574-8. [PMID: 27259401 DOI: 10.1021/acs.bioconjchem.6b00280] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Attachment of polyethylene glycol (PEG) can prolong blood circulation of biological molecules, a useful trait for a vascular imaging agent. Here, we present a route for modifying octabutoxy naphthalocyanine (ONc) with PEG, via axial conjugation following ONc chelation with Sn(IV) chloride (Sn-ONc). Tin chelation caused ONc absorbance to shift from 860 to 930 nm. Hydroxy terminated PEG was treated with sodium and then was axially attached to the tin, generating PEG-Sn-ONc. Unlike ONc or Sn-ONc, PEG-Sn-ONc was soluble in methanol. ONc and PEG-Sn-ONc were dissolved in polysorbate solutions and administered to mice intravenously. PEG-Sn-ONc demonstrated substantially longer blood circulation time than ONc, with a 4 times longer half-life and a nearly 10 times greater area under the curve. PEG-Sn-ONc gave rise to photoacoustic contrast and could be used for noninvasive brain vessel imaging even 24 h following injection. This work demonstrates that nonmetallic naphthalocyanines can be chelated with tin, and be axially modified with PEG for enhanced circulation times for long-term vascular imaging with photoacoustic tomography.
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Affiliation(s)
| | | | | | - Yang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University , Jinan 250014, P.R. China
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Lam KH, Lee KKH, Gambari R, Kok SHL, Kok TW, Chan ASC, Bian ZX, Wong WY, Wong RSM, Lau FY, Tong SW, Chan KW, Cheng CH, Chui CH, Tang JCO. Anti-tumour and pharmacokinetics study of 2-Formyl-8-hydroxy-quinolinium chloride as Galipea longiflora alkaloid analogue. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:877-882. [PMID: 24680618 DOI: 10.1016/j.phymed.2014.02.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 12/10/2013] [Accepted: 02/22/2014] [Indexed: 06/03/2023]
Abstract
The quinolinium chloride salt of 8-hydroxyqinolinecarbaldehyde (2-Formyl-8-hydroxy-quinolinium chloride) was prepared as Galipea longiflora alkaloid analogue and its anticancer activity was evaluated both in vitro and in vivo. This chloride salt was found to show certain degree of selectivity between hepatoma cells and normal hepatocytes in vitro. Athymic nude mice Hep3B xenograft model further demonstrated that this 2-Formyl-8-hydroxy-quinolinium chloride could execute strong anti-tumour activity with the identification of extensive necrotic feature from the tumour xenograft and limited adverse toxicological effect.
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Affiliation(s)
- Kim-Hung Lam
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, People's Republic of China.
| | - Kenneth Ka-Ho Lee
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Roberto Gambari
- Centre of Biotechnology, Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Stanton Hon-Lung Kok
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Tsz-Wai Kok
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Albert Sun-Chi Chan
- Institute of Creativity, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, People's Republic of China; Clinical Division, School of Chinese Medicine, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, People's Republic of China
| | - Zhao-Xiang Bian
- Clinical Division, School of Chinese Medicine, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, People's Republic of China
| | - Wai-Yeung Wong
- Institute of Creativity, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, People's Republic of China
| | - Raymond Siu-Ming Wong
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Fung-Yi Lau
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - See-Wai Tong
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Kit-Wah Chan
- School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Chor-Hing Cheng
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, People's Republic of China
| | - Chung-Hin Chui
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, People's Republic of China; School of Biomedical Sciences and Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People's Republic of China; Clinical Division, School of Chinese Medicine, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, People's Republic of China.
| | - Johnny Cheuk-On Tang
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, People's Republic of China.
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Lam PL, Lee KKH, Ho YW, Wong RSM, Tong SW, Cheng CH, Lam KH, Tang JCO, Bian ZX, Gambari R, Kok SHL, Chui CH. The development of chitosan based microcapsules as delivery vehicles for orally administered daunorubicin. RSC Adv 2014. [DOI: 10.1039/c4ra00195h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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