HEK293T (ATCC), HeLa (ATCC), and HeLa-mCEACAM (77 (
link),
78 (
link)) cells were maintained in DMEM−10% FBS
medium (Dulbecco’s modified Eagle medium [DMEM] containing 10 mM HEPES,
100 nM sodium pyruvate, 0.1 mM nonessential amino acids, 100 U/ml penicillin
G, and 100 μg/ml streptomycin, and supplemented with 10%
fetal bovine serum[FBS] [Atlanta Biologicals]).
BHK-21 cells (ATCC) were maintained in DMEM−5% FBS
medium.
LET-1 cells (BEI Resources) (79 (
link)) were
maintained in DMEM−10% FBS medium lacking HEPES, sodium pyruvate and nonessential
amino acids.
Calu3 cells (ATCC) were maintained in MEM−20% FBS medium (minimum
essential medium [MEM] supplemented with 20% FBS, 100 U/ml penicillin G, and
100 μg/ml streptomycin). DBT cells (80 (
link), 81 (
link)) were maintained in MEM−5%
FBS medium (MEM supplemented with 5% FBS, 10% tryptose-phosphate broth, 26.8 mM
sodium bicarbonate, 2 mM
l-glutamine, 100 U/ml penicillin G, and
100 μg/ml streptomycin). All cell lines were cultured in a 5% CO
2incubator at 37°C.
Qing E., Hantak M., Perlman S, & Gallagher T. (2020). Distinct Roles for Sialoside and Protein Receptors in Coronavirus Infection. mBio, 11(1), e02764-19.