Heat-Treated Paraprobiotic Latilactobacillus sakei KU15041 and Latilactobacillus curvatus KU15003 Show an Antioxidant and Immunostimulatory Effect

The lactic acid bacteria, including Latilactobacillus sakei and Latilactobacillus curvatus, have been widely studied for their preventive and therapeutic effects. In this study, the underlying mechanism of action for the antioxidant and immunostimulatory effects of two strains of heat-treated paraprobiotics was examined. Heat-treated L. sakei KU15041 and L. curvatus KU15003 showed higher radical scavenging activity in both the 2-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenyl-1-picryl-hydrazyl (DPPH) assays than the commercial probiotic strain LGG. In addition, treatment with these two strains exhibited immunostimulatory effects in RAW 264.7 macrophages, with L. curvatus KU15003 showing a slightly higher effect. Additionally, they promoted phagocytosis and NO production in RAW 264.7 cells without any cytotoxicity. Moreover, the expression of tumor necrosis factor-α, interleukin (IL)-1β, and IL-6 was upregulated. These strains resulted in an increased expression of inducible nitric oxide synthase and cyclooxygenase-2. Moreover, the nuclear factor-κB and mitogen-activated protein kinase signaling pathways were stimulated by these strains. These findings suggest the potential of using L. sakei KU15041 and L. curvatus KU15003 in food or by themselves as probiotics with antioxidant and immune-enhancing properties.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:34

Enthalten in:

Journal of microbiology and biotechnology - 34(2024), 2 vom: 28. Feb., Seite 358-366

Sprache:

Englisch

Beteiligte Personen:

Hyun, Jun-Hyun [VerfasserIn]
Woo, Im-Kyung [VerfasserIn]
Kim, Kee-Tae [VerfasserIn]
Park, Young-Seo [VerfasserIn]
Kang, Dae-Kyung [VerfasserIn]
Lee, Na-Kyoung [VerfasserIn]
Paik, Hyun-Dong [VerfasserIn]

Links:

Volltext

Themen:

Antioxidant effect
Antioxidants
Immunostimulatory effect
Journal Article
Latilactobacillus curvatus
Latilactobacillus sakei
Paraprobiotics

Anmerkungen:

Date Completed 01.03.2024

Date Revised 17.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.4014/jmb.2309.09007

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364885165