Journal: Materials Today Bio
Article Title: 4D-printed Fe3O4-PLLA scaffolds modulate osteoimmune microenvironment for oral bone repair
doi: 10.1016/j.mtbio.2025.102691
Figure Lengend Snippet: In vitro immunomodulatory properties of PLLA, Fe 3 O 4 -PLLA, CSMA/Fe 3 O 4 -PLLA, NG-CSMA/Fe 3 O 4 -PLLA scaffolds. a-b) 3 days of co-culture of RAW 264.7 with PLLA, Fe 3 O 4 -PLLA, CSMA/Fe 3 O 4 -PLLA, and NG-CSMA/Fe 3 O 4 -PLLA scaffolds, flow cytometry was performed to analyze M1, M2 markers CD86 and CD206. c) mRNA levels of TNF-α, IL-1β, Arg-1, and CD206 by qRT-PCR; d) Immunofluorescence images of M1 (iNOS) and M2 (Arg-1) macrophage markers; and e) quantitative analysis of fluorescence intensity. n = 3. (∗p < 0.05, ∗∗p < 0.01, ∗∗∗p < 0.001).
Article Snippet: To assess the immunomodulatory properties and osteogenic capacity of each group of scaffolds evaluated in vitro , three different culture models were established: Raw 264.7 cell monoculture, rBMSCS cell monoculture and Raw 264.7-rBMSCs cell co-culture ( ). rBMSCs (RRID: CVCL_A9JU) and Raw 264.7 cells (RRID: CVCL_0493) were purchased from the American Type Culture Collection (ATCC, Manassas, VA, USA) and were authenticated according to the supplier's instructions to ensure the absence of contaminants.
Techniques: In Vitro, Co-Culture Assay, Flow Cytometry, Quantitative RT-PCR, Immunofluorescence, Fluorescence