Bone marrow-derived dendritic cells were cultured as previously described [19 (
link)]. Briefly, bone marrow from the femurs and tibia were collected aseptically from C57BL/6 mice. Cells were cultured for 6 days in RPMI-1640 containing 10% heat-inactivated FBS, 20 ng/ml
mGM-CSF (Peprotech), 50 μM β-mercaptoethanol, 100 U/ml penicillin and 100 μg/ml streptomycin. Cells were incubated at 5% CO
2 and 37°C. After 3 days,
mGM-CSF containing media was supplemented. Loosely adherent cells were collected on the sixth day and used for the further experiment [57 (
link)]. Percentage purity of DCs was 65% to 80%.
Total splenocytes were isolated from the spleen of C57BL/6-Tg (TcraTcrb) 1100Mjb/J mice by mechanical disruption. Erythrocytes were lysed by
RBC lysis buffer (Sigma) and cells were maintained in RPMI-1640 containing 10% heat-inactivated FBS. Finally, non-adherent cells were collected and were used for mixed lymphocyte proliferation assay.
Anti SIRT2 antibody (Boster, #PA2283),
anti NFκB p65 antibody (Cell Signalling, #3034), anti NOS2 antibody (Bimol, #Cay160862), anti Iκα antibody (Santa Cruz Biotech, #A2208) was used for immunoblot and immunofluorescence analysis.
Gogoi M., Chandra K., Sarikhani M., Ramani R., Sundaresan N.R, & Chakravortty D. (2018). Salmonella escapes adaptive immune response via SIRT2 mediated modulation of innate immune response in dendritic cells. PLoS Pathogens, 14(11), e1007437.