Journal: Nature Communications
Article Title: In situ self-assembled cell reservoir hydrogel for maneuvering multistage radioimmunotherapy
doi: 10.1038/s41467-026-68490-5
Figure Lengend Snippet: a Schematic illustration showing immunosuppression within the TME after monotherapy of RT. b Representative flow cytometry plots and corresponding quantification of CTLA-4 expression in CD3 + T cells within tumors from orthotopic 4T1 tumor-bearing mice at 24 h post the treatments of saline and RT. c , d Representative flow cytometry plots ( c ) and quantifications of CD3 + CD8 + T cells, CD4 + CD25 + T cells, and the ratio of CD8 + T/Treg ( d ) in tumors from orthotopic 4T1 tumor-bearing mice at 24 h. e – g Quantification of CD8 + T cells ( e ), NK cells ( f ), and Tregs ( g ) in orthotopic 4T1 tumors after different treatments. h – j Quantification of IFN-γ production by CD8 + T cells ( h ), CD4 + T cells ( i ), and NK cells ( j ). k Quantification of mature DC (CD80 + CD86 + in CD11c + MHC Ⅱ + cells) in orthotopic 4T1 tumors after different treatments. l – n Quantitative analyses of cDC1 ( l ) and cDC2 ( m ) and activated CD8 + T lymphocytes (CD69 + in CD3 + CD8 + cells) ( n ) in TDLNs of orthotopic 4T1 tumor-bearing mice post different treatments. o Schematic for the tumor rechallenge model establishment and RT + IL/aC@RBAH-mediated therapeutic procedure. p Average tumor growth curves of subcutaneous rechallenge mice receiving the RT + IL/aC@RBAH treatment. Healthy mice implanted with 4T1 tumor cells on day 26 were indicated as control. q Quantification of Tem cells (CD62L − CD44 + ) and ratios of Tcm/Tem cells gating on CD8 + T cells and CD4 + T cells in spleens of 4T1 tumor-bearing mice at the end of different treatments. G1, Saline; G2, RT; G3, RT + RBAH; G4, RT + aC@RBAH; G5, RT + IL@RBAH; G6, RT + IL/aC@RBAH. Experiments in ( b , c ) were independently repeated three times with comparable results. Data in ( b , d – n , p , q ) were presented as mean ± SD. n = 3 mice per group were used in ( b , d – n , q ). n = 5 mice per group were used in ( p ). Statistical significance was determined using two-sided unpaired student’s t -test ( b , d – n , q ) and two-way ANOVA ( p ). Source data are provided as a Source Data file.
Article Snippet: InVivoMAb anti-mouse CTLA-4 (CD152) antibody (Cat# BE0131, Bio X Cell) was purchased from BioXcell.
Techniques: Flow Cytometry, Expressing, Saline, Control