Zinc oxide-Ulva lactuca nanocomposite is a robust dietary immunostimulant in the red swamp crayfish (Procambarus clarkii)

Bibliographic Information
Authors: Omar H.M.; Salaah S.M.; Saad A.E.-H.A.; Azzam A.M.; Khalil M.T.; El-Sayed W.M.
Journal: Fish and Shellfish Immunology
Publisher: Academic Press
Publication Date: October 2024
Volume / Issue: Volume 153
Article No.: 109831
ISSN: 10504648
DOI: 10.1016/j.fsi.2024.109831
Scopus: View on Scopus
PubMed: 39142372
Document Type: Article
Authors and Affiliations
Omar H.M., Department of Zoology, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt; Salaah S.M., National Institute of Oceanography and Fisheries (NIOF), Giza, Egypt; Saad A.E.-H.A., Department of Zoology, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt; Azzam A.M., Environmental Research Department, Theodor Bilharz Research Institute, Giza, Egypt; Khalil M.T., Department of Zoology, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt; El-Sayed W.M., Department of Zoology, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566, Egypt
Abstract
Aquaculture industry suffers significant limitations such as low resistance to diseases and expensive feed. This study investigated the antibacterial and immunostimulatory activities of ZnO-Ulva lactuca nanocomposite (ZnO-Ul NC) in the Procambarus clarkii. Zinc oxide nanoparticles (ZnO NPs) and ZnO-Ul NC were synthetized and characterized by electron microscopies as well as Fourier transform infrared spectroscopy. ZnO NPs and ZnO-Ul NC inhibited the growth of the isolated species Citrobacter freundii and Enterobacter hormaechei. For immunostimulatory evaluation, six crayfish groups (control, U. lactuca, ZnO L, ZnO H, ZnO-Ul L, and ZnO-Ul H) were fed on commercial diet, Ulva lactuca powder, and low or high dose of ZnO NPs or ZnO-Ul NCs, respectively for 90 days. The highest levels of total hemocyte count, granular cells%, phenoloxidase (PO) activity in hemolymph, and NO, superoxide dismutase (SOD), and GSH in hepatopancreas were all reported in the ZnO-Ul groups. The expression of proPO, SOD, and lysozyme exhibited the highest upregulation in the ZnO-Ul H group. Taken together, dietary ZnO-Ul NC significantly improved the non-specific immunity and antioxidant milieu of the crayfish at the genomic and proteomic levels. ZnO-Ul NC is cost effective, easily synthesized, and a promising immunostimulant for Procambarus clarkii that could be used in the aquaculture. © 2024 Elsevier Ltd
Keywords
Antibacterial activity; Glutathione; Hemocytes; Innate immunity; Lysozyme; Phenoloxidase; Adjuvants, Immunologic; Animal Feed; Animals; Anti-Bacterial Agents; Astacoidea; Diet; Dietary Supplements; Edible Seaweeds; Immunity, Innate; Nanocomposites; Ulva; Ulva lactuca; Zinc Oxide; monophenol monooxygenase; nanocomposite; nitric oxide; superoxide dismutase; zinc oxide nanoparticle; antiinfective agent; immunological adjuvant; animal cell; animal experiment; animal tissue; antioxidant activity; aquaculture; Article; biochemical analysis; blood cell count; Citrobacter freundii; controlled study; electron microscopy; Enterobacter; Enterobacter hormaechei; enzyme activity; Fourier transform infrared spectroscopy; gene expression profiling; genomics; granular cell; growth inhibition; hemolymph; hepatopancreas; immunostimulation; male; nonhuman; Procambarus clarkii; protein expression; proteomics; upregulation; animal; animal food; chemistry; crayfish; dietary supplement; drug effect; edible seaweed; immunology; veterinary medicine
Citation Information
Scopus Citations: 2
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