Correction: Heat‑killed probiotic Levilactobacillus brevis MKAK9 and its exopolysaccharide promote longevity by modulating aging hallmarks and enhancing immune responses in Caenorhabditis elegans

Correction: Immun Ageing 21, 52 (2024)

https://doi.org/10.1186/s12979-024-00457-w

Following publication of the original article [1], the authors identified an error in Fig. 1. The legend of graph I in Fig. 1 was missing. The correct figure is given below.

Incorrect: Fig. 1

Fig. 1

Feeding of probiotic heat-killed MKAK9 improves longevity, age-associated biomarkers and resistance of worms against pathogenic infections and abiotic stress in worms. A A lifespan assay on worms was performed after feeding with the bacteria: heat-killed E. coli OP50 (HK OP50), E. coli OP50 (OP50), heat-killed L. brevis MKAK9 (HK MKAK9), L. brevis MKAK9 (MKAK9), and (***P < 0.0001, log-rank test). B-C The pharynx pumps, and locomotory activity of heat-killed bacterium-treated worms were measured on day 14. D-E The accumulation of the aging pigment lipofuscin was measured on day 14 in heat-killed bacterium-treated worms. The lipofuscin levels were observed in worms under a confocal microscope (10X magnification, scale bar, 100 μm). F-G Treatment of HK MKAK9 increased the mean survival of worms against oxidative stress (Paraquat, 10 mM) and heat stress at 35 °C. H-I Pre-treatment of worms on HK reduced the colonization of pathogens S. aureus MTCC 3160 and E. coli MTCC 1687 in the intestine of worms. The heat-killed bacterium-treated effects were statistically compared using a Student’s t-test (*P < 0.05 and **P < 0.01). The error bars represent the mean ± SEM

Correct: Fig. 1

Fig. 1

Feeding of probiotic heat-killed MKAK9 improves longevity, age-associated biomarkers and resistance of worms against pathogenic infections and abiotic stress in worms. A A lifespan assay on worms was performed after feeding with the bacteria: heat-killed E. coli OP50 (HK OP50), E. coli OP50 (OP50), heat-killed L. brevis MKAK9 (HK MKAK9), L. brevis MKAK9 (MKAK9), and (***P < 0.0001, log-rank test). B-C The pharynx pumps, and locomotory activity of heat-killed bacterium-treated worms were measured on day 14. D-E The accumulation of the aging pigment lipofuscin was measured on day 14 in heat-killed bacterium-treated worms. The lipofuscin levels were observed in worms under a confocal microscope (10X magnification, scale bar, 100 μm). F-G Treatment of HK MKAK9 increased the mean survival of worms against oxidative stress (Paraquat, 10 mM) and heat stress at 35 °C. H-I Pre-treatment of worms on HK reduced the colonization of pathogens S. aureus MTCC 3160 and E. coli MTCC 1687 in the intestine of worms. The heat-killed bacterium-treated effects were statistically compared using a Student’s t-test (*P < 0.05 and **P < 0.01). The error bars represent the mean ± SEM

The original article [1] has been updated.