Journal: International Journal of Molecular Sciences
Article Title: Proof-of-Concept Evaluation of Primary Human FAP-CAR-NK Cells Targeting Activated Fibroblasts in Pulmonary Fibrosis
doi: 10.3390/ijms27094128
Figure Lengend Snippet: Proof-of-concept activity of FAP-CAR-NK cells in a fibrotic human lung organoid co-culture model. ( A ) Bright-field images showing morphological alterations in lung organoid co-cultures under non-fibrotic control conditions (NC), profibrotic stimulation (PC), pirfenidone treatment (PFD), untransduced NK-cell treatment (NK), and FAP-CAR-NK-cell treatment (CAR-NK). Treatment-associated fragmented, debris-like material is particularly evident in the NK and CAR-NK groups. Images were acquired at 4× and 10× magnification. ( B ) Multichannel fluorescence imaging of the three-dimensional Matrigel microdroplet co-culture system showing lung organoids labeled with CellTracker Blue CMAC (blue), HFL-1 fibroblasts labeled with GFP (green), and effector cells labeled with CellTracker Deep Red (red); lower panels show magnified views of representative droplets (24 h). ( C ) RT-qPCR analysis of COL1A1, FAP, ACTA2, and SP-C expression in the indicated groups. qPCR primers are shown in . ( D ) Quantification of IFN-γ and TNF-α in culture supernatants after co-culture. Data are presented as mean ± SEM from three independently established organoid co-culture experiments ( n = 3). * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001, ns, not significant.
Article Snippet: Phoenix-AMPHO and HFL-1 cells were obtained from the American Type Culture Collection (ATCC).
Techniques: Activity Assay, Co-Culture Assay, Control, Fluorescence, Imaging, Labeling, Quantitative RT-PCR, Expressing