Effect of methyl gallate on immune response of Biomphalaria alexandrina (Ehrenberg, 1831) snails to infection with Schistosoma mansoni (Sambon, 1907)

Bibliographic Information
Authors: Mansour S.M.; Sayed S.S.M.; Abdel-Wareth M.T.A.
Journal: Parasitology Research
Publisher: Springer Science and Business Media Deutschland GmbH
Publication Date: 6 January 2021
Volume / Issue: Volume 120 / Issue 3
Pages: 1011–1023
ISSN: 9320113
DOI: 10.1007/s00436-020-07037-z
Scopus: View on Scopus
PubMed: 33409634
Document Type: Article
Authors and Affiliations
Mansour S.M., Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt; Sayed S.S.M., Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt; Abdel-Wareth M.T.A., Environmental Research and Medical Malacology Department, Theodor Bilharz Research Institute, Giza, Egypt
Abstract
Schistosomiasis still affects a lot of people in many developing countries. Reducing the disease dissemination has been the target of various studies. As methyl gallate has antioxidant properties, it is assumed that it can be a good candidate for stimulating the immune response of snails. So, the aim of this work is to investigate the potential of using methyl gallate as an immunostimulant to Biomphalaria alexandrina snails in order to prevent the development of invading miracidia into infective cercariae. The infected snails were exposed to three concentrations of methyl gallate for two periods: 24 and 72 h. The results indicated that the most effective concentration was the lowest one: 125 mg/L of methyl gallate for 72 h, as it reduced both infection rate and mean number of shed cercariae. Also, it increased the total number of snails’ hemocytes in hemolymph, which were observed in head-foot region and digestive gland of treated snails surrounding degenerated sporocysts and cercariae. In addition, hydrogen peroxide showed its highest content in tissues of snails exposed to 125 mg/L of methyl gallate for 72 h. In conclusion, methyl gallate can be considered as one of the most promising immunostimulants of B. alexandrina snails against infection with Schistosoma mansoni. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
Keywords
Biomphalaria alexandrina; Hydrogen peroxide; Immunostimulant; Methyl gallate; Schistosomiasis; Adjuvants, Immunologic; Animals; Biomphalaria; Gallic Acid; Hemocytes; Hemolymph; Immunity; Oocysts; Schistosoma mansoni; gallic acid methyl ester; immunological adjuvant; animal tissue; Article; blood cell; cercaria; controlled study; effective concentration; immune response; infection prevention; infection rate; miracidium; nonhuman; priority journal; schistosomiasis mansoni; sporocyst; animal; cytology; drug effect; immunology; oocyst; parasitology
Citation Information
Scopus Citations: 12
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