Background: Lectins have been studied in recent years due to their immunomodulatory activities.
Objective: We purified a lectin named OniL from tilapia fish (Oreochromis niloticus) and here we analyzed the cell proliferation and cytokine production in Balb/c mice splenocytes.
Methods: Cells were stimulated in vitro in 24, 48, 72 hours and 6 days with different concentrations of OniL and Con A. Evaluation of cell proliferation was performed through [3H]-thymidine incorporation, cytokines were investigated using ELISA assay and cell viability assay was performed by investigation of damage through signals of apoptosis and necrosis.
Results: OniL did not promote significant cell death, induced high mitogenic activity in relation to control and Con A and stimulated the cells to release high IL-2 and IL-6 cytokines.
Conclusion: These findings suggest that, like Con A, OniL lectin can be used as a mitogenic agent in immunostimulatory assays.
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http://dx.doi.org/10.2174/0929866526666190911144057 | DOI Listing |
Animals (Basel)
January 2025
Buginyanya Zonal Agricultural Research and Development Institute, National Agricultural Research Organization (NARO), Mbale P.O. Box 1356, Uganda.
() aquaculture continues to significantly contribute to the growth of the aquaculture sector in Uganda. However, its production is beset by erratic and unreliable seed supply. Also, most hatcheries practice inbreeding of broodstock, resulting in inferior seed characterized by low growth rates.
View Article and Find Full Text PDFAntioxidants (Basel)
January 2025
School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, 111 University Avenue, Muang, Nakhon Ratchasima 30000, Thailand.
Due to its lack of the L-gulonolactone oxidase () enzyme, Nile tilapia is unable to synthesize vitamin C; thus, it requires an adequate level of exogenous vitamin C in its diet. To enhance antioxidant properties and vitamin C-related effects, we employed recombinant technology to integrate the -encoding gene into the chromosome. In this study, fish were divided into four groups: those fed with a basal diet (CON), a basal diet + vitamin C (VC), a basal diet + wild-type (BS), and a basal diet + recombinant (BS+GULO).
View Article and Find Full Text PDFVet Sci
January 2025
Graduate Program in Animal Science, Federal University of Paraná, 1540 Rua dos Funcionários, Cabral, Curitiba 80035-050, PR, Brazil.
Corn and soybeans are commodities and ingredients of global interest, whose prices fluctuate based on global demands. In this sense, this study aimed to assess ora-pro-nóbis ( leaf meal (OLM) as an alternative to be included in the diets of Nile tilapia (). The optimal inclusion level of OLM in tilapia diets is investigated herein, aiming to improve their growth performance and health.
View Article and Find Full Text PDFJ Genet Genomics
January 2025
Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, Shanghai 201306, China. Electronic address:
Temperature fluctuations challenge ectothermic species, particularly tropical fish dependent on external temperatures for physiological regulation. However, the molecular mechanisms through which low-temperature stress impacts immune responses in these species, especially in relation to chromatin accessibility and epigenetic regulation, remain poorly understood. In this study, we investigate chromatin and transcriptional changes in the head kidney and thymus tissues of Nile tilapia (Oreochromis niloticus), a tropical fish of significant economic importance, under cold stress.
View Article and Find Full Text PDFIn Vitro Cell Dev Biol Anim
January 2025
Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College, (Affiliated to Thiruvalluvar University), Melvisharam, Tamil Nadu, India.
Tilapia parvovirus (TiPV) is an emerging viral pathogen and responsible for severe economic loss in tilapia culture production. Lethargic, cutaneous haemorrhages; ocular lesions; discolouration of gill and cloudy eye and exophthalmia are common symptoms of TiPV. The TiPV-suspected tilapia fish were collected from grow-out ponds situated in different parts of Tamil Nadu, India, and screened for TiPV by PCR.
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