For the cell experiments, Lact. brevis D70 (100% identity; accession no. LC062897.1), Lact. pentosus S16 (100% identity; accession no. NR_029133.1), and Lact. fermentum MF10 (100% identity; accession no. NR_104927.1) were selected based on their probiotic potential.
The human HT-29 epithelial cell line was obtained from the Korea Cell Line Bank (KCLB, Seoul, South Korea). Cells were grown in maintenance medium supplemented with Roswell Park Memorial Institute (
RPMI) 1640 (GE Healthcare, Chicago, IL, USA), 10% (v/v) heat-inactivated
fetal bovine serum (FBS) (Gibco, Dublin, Ireland), and 1% (v/v) antibiotic solution (
penicillin and streptomycin solution, 100 U mL - 1 ) (GE Healthcare).
The
human HaCaT keratinocyte cell line was obtained from the American Type Culture Collection (ATCC; Rockville, MD, USA). Cells were grown in maintenance medium supplemented with Dulbecco's modi ed Eagle's medium (DMEM) (GE Healthcare), 10% (v/v) heat-inactivated
fetal bovine serum (FBS) (Gibco), and 1% (v/v) antibiotic solution (
penicillin and streptomycin solution, 100 U mL - 1 ) (GE Healthcare). OD 517(control)
Cells were incubated at 37°C and 5% CO 2 in a humidi ed atmosphere, and the culture medium was replaced with fresh RPMI or DMEM maintenance medium every 2 d. Cells were transferred at 60% con uence using 1 mL of
trypsin-EDTA (GE Healthcare).
Shin M.J., Lee C.S, & Kim S.H. (2023). Screening for Lactic Acid Bacterial Strains as Probiotics Exhibiting Anti-inflammatory and Antioxidative Characteristic Via Immune Modulation in HaCaT Cell. Probiotics and antimicrobial proteins, 15(6).