Article Publish Status: FREE
Abstract Title:

Immunobiotic and Paraprobiotic Potential Effect ofin a Systemic Toxoplasmosis Murine Model.

Abstract Source:

Microorganisms. 2020 Jan 14 ;8(1). Epub 2020 Jan 14. PMID: 31947510

Abstract Author(s):

Angel Gustavo Salas-Lais, Atzín Robles-Contreras, José Abraham Balderas-López, Victor Manuel Bautista-de Lucio

Article Affiliation:

Angel Gustavo Salas-Lais


One of the main characteristics of probiotics is their ability to stimulate and modulate the immune response regardless of their viability.(Lc) can stimulate local and systemic immunity, in addition to the activation of macrophages at sites distant from the intestine. Activated macrophages limit the replication of intracellular protozoa, such as, through the production of nitric oxide. The present study aimed to evaluate the protection generated by treatment with viable and non-viable Lc in the murine systemic toxoplasmosis model. CD1 male mice were treated with viable Lc (immunobiotic) and non-viable Lc (paraprobiotic), infected with tachyzoites ofRH strain. The reduction of the parasitic load, activation of peritoneal macrophages, inflammatory cytokines, and cell populations was evaluated at 7 days post-infection, in addition to the survival. The immunobiotic and paraprobiotic reduced the parasitic load, but only the immunobiotic increased the activation of peritoneal macrophages, and the production of interferon-gamma (IFN-γ), tumor necrosis factor (TNF), and interleukin-6 (IL-6) while the paraprobiotic increased the production of monocyte chemoattractant protein-1 (MCP-1) and T CD4CD44lymphocytes. Viable and non-viable Lc increases survival but does not prevent the death of animals. The results provide evidence about the remote immunological stimulation of viable and non-viable Lc in an in vivo parasitic model.

Study Type : Animal Study

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