OASFs, tOASFs, and RASFs were pretreated with apoptosis-inducers A (Apopisa) and B (Apobid) (1 : 1000, Beyotime, Nantong, China) for 8 h, harvested, stained with Annexin V-FITC/PI (Bender MedSystems, Vienna, Austria), and analyzed by flow cytometry.
OASFs, tOASFs, and RASFs were stained with PE-antiTLR2 (eBioScience, San Diego, CA, USA), APC-antiTLR4 (eBioScience), and anti-RAGE (Millipore, Billerica, MA, USA). The expression of HMGB1-associcated receptors was analyzed by flow cytometry.
OASFs, tOASFs, and RASFs were stained with PerCP-antiCXCL12 (R&D), APC-antiCCL2, PE-antiVCAM-1, and APC-antiICAM-1 (eBioscience). The expression of RA-associated chemokines and intercellular adhesion molecules was analyzed by flow cytometry.