Int J Med Sci 2017; 14(13):1430-1435. doi:10.7150/ijms.22294 This issue Cite

Research Paper

ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model

Sungsu Lee1*, Wonbong Lim2*, Hye-Won Ryu3, Danbi Jo4, Jung-Joon Min5, Hyung-Seok Kim3✉, Hoon Hyun4✉

1. Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Gwangju 61469, South Korea;
2. Department of Premedical Program, School of Medicine, Chosun University, Gwangju 61452, South Korea;
3. Department of Forensic Medicine, Chonnam National University Medical School, Gwangju 61469, South Korea;
4. Department of Biomedical Sciences, Chonnam National University Medical School, Gwangju 61469, South Korea;
5. Department of Nuclear Medicine, Chonnam National University Medical School, Gwangju 61469, South Korea.
* These authors contributed equally to this work.

Citation:
Lee S, Lim W, Ryu HW, Jo D, Min JJ, Kim HS, Hyun H. ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model. Int J Med Sci 2017; 14(13):1430-1435. doi:10.7150/ijms.22294. https://www.medsci.org/v14p1430.htm
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Abstract

Background: Since it is known that serum albumin-bound dyes can cross the blood-brain barrier (BBB) after ischemia, Evans Blue dye is commonly used to assess BBB disruption because of its rapid binding to serum albumin. In addition, indocyanine green (ICG), a clinically available dye, binds to serum proteins that could also be used for assessment of BBB impairment. Unlike these near-infrared (NIR) dyes, zwitterionic NIR fluorophore (ZW800-1) shows no serum binding, ultralow non-specific tissue uptake, and rapid elimination from the body via renal filtration. In this study, we report the use of ZW800-1 as a NIR fluorescence imaging agent for detecting BBB disruption in rat stroke models.

Methods: Three types of NIR fluorophores, Evans Blue, ICG, and ZW800-1, were administered intraperitoneally into rat photothrombotic stroke models by using 4% concentration of each NIR dye. The NIR fluorescence signals in the infarcted brain tissue and biodistribution were observed in real-time using the Mini-FLARE® imaging system up to 24 h post-injection.

Results: ZW800-1 provided successful visualization of the ischemic injury site in the brain tissue, while the remaining injected dye was clearly excreted from the body within a certain period of time. Although Evans Blue and ICG provided mapping of the infarcted brain lesions, they exhibited high non-specific uptake in most of the tissues and organs and persisted in the body over 24 h post-injection.

Conclusion: Our results suggest the promising application of ZW800-1 as a new strategy in BBB experiments and future therapeutic development.

Keywords: ZW800-1, photothrombotic stroke model, blood-brain barrier, near-infrared fluorescence.


Citation styles

APA
Lee, S., Lim, W., Ryu, H.W., Jo, D., Min, J.J., Kim, H.S., Hyun, H. (2017). ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model. International Journal of Medical Sciences, 14(13), 1430-1435. https://doi.org/10.7150/ijms.22294.

ACS
Lee, S.; Lim, W.; Ryu, H.W.; Jo, D.; Min, J.J.; Kim, H.S.; Hyun, H. ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model. Int. J. Med. Sci. 2017, 14 (13), 1430-1435. DOI: 10.7150/ijms.22294.

NLM
Lee S, Lim W, Ryu HW, Jo D, Min JJ, Kim HS, Hyun H. ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model. Int J Med Sci 2017; 14(13):1430-1435. doi:10.7150/ijms.22294. https://www.medsci.org/v14p1430.htm

CSE
Lee S, Lim W, Ryu HW, Jo D, Min JJ, Kim HS, Hyun H. 2017. ZW800-1 for Assessment of Blood-Brain Barrier Disruption in a Photothrombotic Stroke Model. Int J Med Sci. 14(13):1430-1435.

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