ArticleEnvironmental analysis, health and toxicology2024
Evaluation of cellular immune response in rabbits after exposure to cobra venom and purified toxin fraction.
Article in Environmental analysis, health and toxicology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Snakebite by a cobra is considered neurotoxic as the cause of neuromuscular paralysis mediated by low molecular weight toxins, which are major toxin components of cobra. However, these toxins represent a problem in generating antibodies owing to their low immunogenicity. Developing complementary strategies to improve the antibody response could be a useful approach to creating better therapeutic antivenoms with higher neutralizing potencies. To develop simple immunization strategies for more potent antivenoms by studying the effects of combining crude cobra venom and toxin fraction in a complementary way. The evaluation of specific cell immunology and cytokine mediators for relevant immune responses will be measured in a rabbit model using four simple immunization strategies. Flow cytometry will be used to quantify the number of B and T cells, and qRT-PCR will be used to ascertain the cytokine genes expressed. B cells with anti-CD20 were seen on D14, and a booster dose was insufficient to maximize the antibodies. Conversely, anti-CD5 for T cells decreased periodically but remained stable. Using a mixture of crude cobra venom and its <10 kDa fraction, peak expression of pro-inflammatory cytokine genes was seen in D42 or D58, with a rise of 4 and 6 folds. Similarly, gene expression of pro-inflammatory cytokines was greater than that of anti-inflammatory cytokines (IL-4 and IL-10), which were up-regulated after D42. Thus, immunization with both the crude and its <10 kDa fraction of cobra venom seems to have synergistic effects that boost cytokines, activate the immune system, and cause lymphocyte differentiation.
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