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Open AccessArticle

Preparation and Neutralization Efficacy of Novel Jellyfish Antivenoms against Cyanea nozakii Toxins

by 1,2,*, 1,2, 1, 1,3 and 1,2,*
1
Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
2
Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), No. 1 Wenhai Road, Qingdao 266237, China
3
College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
Received: 4 January 2021 / Revised: 17 February 2021 / Accepted: 18 February 2021 / Published: 21 February 2021
(This article belongs to the Special Issue Therapeutics for Jellyfish Envenomation)
Jellyfish stings are a common issue globally, particularly in coastal areas in the summer. Victims can suffer pain, itching, swelling, shock, and even death. Usually, hot water, vinegar, or alumen is used to treat the normal symptoms of a jellyfish sting. However, a specific antivenom may be an effective treatment to deal with severe jellyfish stings. Cyanea nozakii often reach a diameter of 60 cm and are responsible for hundreds of thousands of stings per year in coastal Chinese waters. However, there has been no specific C. nozakii antivenom until now, and so the development of this antivenom is very important. Herein, we collected C. nozakii antisera from tentacle extract venom immunized rabbits and purified the immunoglobulin (IgG) fraction antivenom (AntiCnTXs). Subsequently, two complete procedures to produce a refined F(ab’)2 type of antivenom (F(ab’)2-AntiCnTXs) and Fab type of antivenom (Fab-AntiCnTXs) by multiple optimizations and purification were established. The neutralization efficacy of these three types of antivenoms was compared and analyzed in vitro and in vivo, and the results showed that all types of antibodies displayed some neutralization effect on the lethality of C. nozakii venom toxins, with the neutralization efficacy as follows: F(ab’)2-AntiCnTXs ≥ AntiCnTXs > Fab-AntiCnTXs. This study describes the preparation of novel C. nozakii jellyfish antivenom preparations towards the goal of developing a new, effective treatment for jellyfish stings. View Full-Text
Keywords: jellyfish; Cyanea nozakii; antivenom; AntiCnTXs; F(ab’)2-AntiCnTXs; Fab-AntiCnTXs jellyfish; Cyanea nozakii; antivenom; AntiCnTXs; F(ab’)2-AntiCnTXs; Fab-AntiCnTXs
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MDPI and ACS Style

Li, R.; Yu, H.; Li, A.; Yu, C.; Li, P. Preparation and Neutralization Efficacy of Novel Jellyfish Antivenoms against Cyanea nozakii Toxins. Toxins 2021, 13, 165. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13020165

AMA Style

Li R, Yu H, Li A, Yu C, Li P. Preparation and Neutralization Efficacy of Novel Jellyfish Antivenoms against Cyanea nozakii Toxins. Toxins. 2021; 13(2):165. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13020165

Chicago/Turabian Style

Li, Rongfeng; Yu, Huahua; Li, Aoyu; Yu, Chunlin; Li, Pengcheng. 2021. "Preparation and Neutralization Efficacy of Novel Jellyfish Antivenoms against Cyanea nozakii Toxins" Toxins 13, no. 2: 165. https://0-doi-org.brum.beds.ac.uk/10.3390/toxins13020165

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