Journal: Journal of Translational Medicine
Article Title: Metabolic reprogramming of poly(morpho)nuclear giant cells determines glioblastoma recovery from doxorubicin-induced stress
doi: 10.1186/s12967-024-05541-9
Figure Lengend Snippet: Heterogeneity of T98G populations recovering from DOX-induced stress. ( a ) Nuclear Ki67 (insert) and Snail-1 (green) localization in PGCs at the 7th day after DOX removal and the dynamics of their nuclear polymorphism following a pulse DOX-treatment. ( b ) Seahorse XFp analyses of the oxygen consumption rate (OCR) and extracellular acidification rate (ECAR, left) and ATP accumulation (right) in PGCs following a pulse DOX-treatment. ( c ) β-galactosidase activity in PGCs and SECs visualized (as x-gal fluorescence) at 14th day after DOX-removal with fluorimetry. ( d , e ) Cx43 gap junctions ( d ) and GJIC ( e ) between PGCs and adjacent clusters of SECs visualized with immunofluorescence and calcein microinjection/transfer, respectively. Single cells are marked according to the signature of the relevant calcein transfer curve. Red arrow indicates the dye injection site. ( f ) Motility of SECs estimated with time-lapse video-microscopy at the population level (cf. Fig. b in Supplementary data). Scale bar = 25 μm ( a , c ), 10 μm ( d ) and 50 μm ( e ). Statistical significance was calculated with ANOVA and Tukey’s post hoc test ( a , c ), t-student ( b ) and non-parametric Mann-Whitney test ( f ), * p < 0.05 vs. control. Error bars represent SD ( b , c ) and SEM ( f ). Data representative for n > 30 single cells and/or 3 independent biological replicates. Note the metabolic cooperation of dormant PGCs and SECs
Article Snippet: Specimens were incubated for 45 min. in the presence of the following primary antibodies (in 2% BSA/0.01% Tween): polyclonal goat anti-SNAI1 (N-terminal, Sigma; No. SAB2501370; 1:300), polyclonal rabbit anti-Cx43 (Sigma; No. C6219; 1:500), monoclonal IgG mouse anti-α-tubulin (Sigma; No. T6199; 1:300), polyclonal rabbit anti vimentin (GeneTex; No. GTX100619; 1:200) and polyclonal rabbit anti phospho-Snail-1-PSer246 (Sigma; No. SAB4504319; 1:200) and polyclonal rabbit anti-Ki67 (Sigma; No. SAB5700770; 1:300).
Techniques: Activity Assay, Fluorescence, Immunofluorescence, Microinjection, Injection, Microscopy, MANN-WHITNEY, Control