Antivenom for Venomous Bites Treatment: Assessment of Antivenom Quality, Efficacy and Safety, and Development of Next Generation Antivenoms

A special issue of Toxins (ISSN 2072-6651). This special issue belongs to the section "Animal Venoms".

Deadline for manuscript submissions: closed (27 June 2023) | Viewed by 8360

Special Issue Editor


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Guest Editor
Institute of Advanced Study in Science and Technology India, Guwahati, India
Interests: antivenom

Special Issue Information

Dear Colleagues,

Overview

Snakebite envenoming is a neglected tropical disease (NTD), as recognized by the World Health Organization (WHO), with a significant public health impact in tropical areas, primarily affecting poor and rural people and, therefore, called a ‘‘Disease of Poverty”. Antivenom prepared by conventional methods in horses is still the mainstay for treating snakebite envenomation. The success of antivenom therapy depends upon its ability to mitigate the local and systemic toxicity of envenomation with fewer adverse effects.

Antivenom was first used for snakebite treatment by Albert Calmette in 1894; since then, the basic strategy for antivenom production has remained fundamentally the same, although significant improvements in the manufacturing methodology have been made. Recently, WHO launched a global strategy to control and prevent snake envenomation, with the aim of reducing the number of deaths and disabilities caused by snakebites by 50% by the year 2030. One of this strategy's four pillars is providing safe and effective treatments. Therefore, researchers are encouraged to assess the quality and safety of existing and newly developed commercial antivenom to eliminate low-quality antivenom. As an alternative approach, scientists worldwide are trying to create next-generation antivenom, for example, recombinant antivenom, engineered human-derived antivenom, peptide- and oligonucleotide-based aptamer, or plant-based antivenom, as well as small molecule inhibitors to reduce the risk of adverse reactions and improve the venom-specific antibodies. This Special Issue invites all original research (basic and clinical) and review articles focusing on the assessment of quality, safety, and efficacy of antivenom, improvement in the antivenom production, development of next-generation antivenom, plant-based antivenom, and use of small molecule inhibitors for snakebite treatment.

The theme of the topics to be covered under this Special Issue:

  1. In vitro and In vivo assessment of quality safety and efficacy of antivenom;
  2. Adverse reactions of antivenom and its treatment;
  3. Improvement of the current method of antivenom production;
  4. Development of the next generation of antivenom;
  5. Treatment of snake envenomation by an alternative approaches, such as small molecule inhibitors, aptamers, plant-based antivenom;
  6. Repurposed drugs against snakebites.

Prof. Dr. Ashis Kumar Mukherjee
Guest Editor

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Published Papers (5 papers)

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20 pages, 5339 KiB  
Article
Comparing Traditional and Toxin-Oriented Approaches towards Antivenom Production against Bitis arietans Snake Venom
by Felipe Raimondi Guidolin, Kemily Stephanie de Godoi, Angela Alice Amadeu Megale, Cristiane Castilho Fernandes da Silva, Roberto Tadashi Kodama, Daniela Cajado-Carvalho, Leo Kei Iwai, Patrick Jack Spencer, Fernanda Calheta Vieira Portaro and Wilmar Dias da Silva
Toxins 2023, 15(9), 584; https://doi.org/10.3390/toxins15090584 - 20 Sep 2023
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Abstract
Accidents with snakes are responsible for about 32,000 deaths annually in sub-Saharan Africa, caused mostly by snakes from the genus Bitis, in particular Bitis arietans. B. arietans venom is composed of a complex mixture of toxins, mainly metalloproteases, serine proteases, phospholipases, [...] Read more.
Accidents with snakes are responsible for about 32,000 deaths annually in sub-Saharan Africa, caused mostly by snakes from the genus Bitis, in particular Bitis arietans. B. arietans venom is composed of a complex mixture of toxins, mainly metalloproteases, serine proteases, phospholipases, lectins, and disintegrins. In this work, we compared two approaches to anti-B. arietans antivenom production: immunization with crude snake venom (“traditional approach”) and immunization with selected key toxins isolated from the snake venom (“toxin oriented” approach). Fractions from B. arietans venom were isolated by size exclusion chromatography. Crude venom and samples containing serine proteases or metalloproteases were selected for the immunization of BALB/c mice. Anti-B. arietans and anti-serine proteases plasmas showed a similar recognition profile and higher titers and affinity than the anti-metalloproteases plasma. Cross-recognition of other Bitis venoms was observed, but with low intensity. Although the plasma of all experimental groups inhibited the enzymatic activity of B. arietans venom in vitro, in vivo protection was not achieved. Our results have shown limitations in both approaches considered. Based on this, we proposed a model of polyclonal, species-specific, monovalent antivenoms that could be used as a base to produce customizable polyvalent sera for use in sub-Saharan Africa. Full article
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0 pages, 695 KiB  
Article
Body Temperature Drop as a Humane Endpoint in Snake Venom-Lethality Neutralization Tests
by Rosa De Jesus, Adam E. Tratner, Alanna Madrid, Andrés Rivera-Mondragón, Goy E. Navas, Ricardo Lleonart, Gabrielle B. Britton and Patricia L. Fernández
Toxins 2023, 15(9), 525; https://doi.org/10.3390/toxins15090525 - 26 Aug 2023
Cited by 1 | Viewed by 1202 | Correction
Abstract
Snake venom neutralization potency tests are required for quality control assessment by manufacturers and regulatory authorities. These assays require the use of large numbers of mice that manifest severe signs associated with pain and distress and long periods of suffering. Despite this, many [...] Read more.
Snake venom neutralization potency tests are required for quality control assessment by manufacturers and regulatory authorities. These assays require the use of large numbers of mice that manifest severe signs associated with pain and distress and long periods of suffering. Despite this, many animals make a full recovery; therefore, the observation of clinical signs as a predictor of animal death is highly subjective and could affect the accuracy of the results. The use of a more objective parameter such as body temperature measurement could help establish a humane endpoint that would contribute to significantly reducing the suffering of large numbers of animals. We determined the temperature drop in BALB/c mice exposed to the mixtures of Bothrops asper or Lachesis stenophrys venom and a polyvalent antivenom by using an infrared thermometer. Our data show that, based on the temperature change from baseline, it is possible to predict which animals will survive during the first 3 h after inoculation. The data provided in this study may contribute to future reductions in animal suffering, in concordance with general trends in the use of laboratory animals for the quality control of biologicals. Full article
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29 pages, 6193 KiB  
Article
A Novel Therapeutic Formulation for the Improved Treatment of Indian Red Scorpion (Mesobuthus tamulus) Venom-Induced Toxicity-Tested in Caenorhabditis elegans and Rodent Models
by Bhabana Das, Dev Madhubala, Saurov Mahanta, Aparup Patra, Upasana Puzari, Mojibur R. Khan and Ashis K. Mukherjee
Toxins 2023, 15(8), 504; https://doi.org/10.3390/toxins15080504 - 14 Aug 2023
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Abstract
Indian Red Scorpion (Mesobuthus tamulus) stings are a neglected public health problem in tropical and sub-tropical countries, including India. The drawbacks of conventional therapies using commercial anti-scorpion antivenom (ASA) and α1-adrenoreceptor antagonists (AAA) have prompted us to search for an adequate [...] Read more.
Indian Red Scorpion (Mesobuthus tamulus) stings are a neglected public health problem in tropical and sub-tropical countries, including India. The drawbacks of conventional therapies using commercial anti-scorpion antivenom (ASA) and α1-adrenoreceptor antagonists (AAA) have prompted us to search for an adequate formulation to improve treatment against M. tamulus stings. Novel therapeutic drug formulations (TDF) of low doses of commercial ASA, AAA, and ascorbic acid have remarkably improved in neutralising the in vivo toxic effects of M. tamulus venom (MTV) tested in Caenorhabditis elegans and Wistar strain albino rats in vivo models. The neutralisation of MTV-induced production of free radicals, alteration of the mitochondrial transmembrane potential, and upregulated expression of genes involved in apoptosis, detoxification, and stress response in C. elegans by TDF surpassed the same effect shown by individual components of the TDF. Further, TDF efficiently neutralized the MTV-induced increase in blood glucose level within 30 to 60 min post-treatment, organ tissue damage, necrosis, and pulmonary oedema in Wistar rats, indicating its clinical application for effecting treating M. tamulus envenomation. This study demonstrates for the first time that C. elegans can be a model organism for screening the neutralization potency of the drug molecules against a neurotoxic scorpion venom. Full article
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19 pages, 1487 KiB  
Article
Proteomic Analysis, Immuno-Specificity and Neutralization Efficacy of Pakistani Viper Antivenom (PVAV), a Bivalent Anti-Viperid Antivenom Produced in Pakistan
by Andy Shing Seng Lim, Kae Yi Tan, Naeem H. Quraishi, Saud Farooque, Zahoor Ahmed Khoso, Kavi Ratanabanangkoon and Choo Hock Tan
Toxins 2023, 15(4), 265; https://doi.org/10.3390/toxins15040265 - 3 Apr 2023
Cited by 1 | Viewed by 2310
Abstract
Snakebite envenoming is a neglected tropical disease prevalent in South Asia. In Pakistan, antivenoms are commonly imported from India despite the controversy over their effectiveness. To solve the problem, the locals have developed the Pakistani Viper Antivenom (PVAV), raised against Sochurek’s Saw-scaled Viper [...] Read more.
Snakebite envenoming is a neglected tropical disease prevalent in South Asia. In Pakistan, antivenoms are commonly imported from India despite the controversy over their effectiveness. To solve the problem, the locals have developed the Pakistani Viper Antivenom (PVAV), raised against Sochurek’s Saw-scaled Viper (Echis carinatus sochureki) and Russell’s Viper (Daboia russelii) of Pakistani origin. This study is set to evaluate the composition purity, immuno-specificity and neutralization efficacy of PVAV. Chromatographic and electrophoretic profiling coupled with proteomic mass spectrometry analysis showed PVAV containing high-purity immunoglobulin G with minimum impurities, notably the absence of serum albumin. PVAV is highly immuno-specific toward the venoms of the two vipers and Echis carinatus multisquamatus, which are indigenous to Pakistan. Its immunoreactivity, however, reduces toward the venoms of other Echis carinatus subspecies and D. russelii from South India as well as Sri Lanka. Meanwhile, its non-specific binding activities for the venoms of Hump-nosed Pit Vipers, Indian Cobras and kraits were extremely low. In the neutralization study, PVAV effectively mitigated the hemotoxic and lethal effects of the Pakistani viper venoms, tested in vitro and in vivo. Together, the findings suggest the potential utility of PVAV as a new domestic antivenom for the treatment of viperid envenoming in Pakistan. Full article
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2 pages, 666 KiB  
Correction
Correction: De Jesus et al. Body Temperature Drop as a Humane Endpoint in Snake Venom-Lethality Neutralization Tests. Toxins 2023, 15, 525
by Rosa De Jesus, Adam E. Tratner, Alanna Madrid, Andrés Rivera-Mondragón, Goy E. Navas, Ricardo Lleonart, Gabrielle B. Britton and Patricia L. Fernández
Toxins 2024, 16(1), 25; https://doi.org/10.3390/toxins16010025 - 3 Jan 2024
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Abstract
In the original publication [...] Full article
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