Journal: bioRxiv
Article Title: LIMD1 Loss Confers a GPX4-Dependent Cell State in Lung Cancer
doi: 10.1101/2025.06.06.658274
Figure Lengend Snippet: (A, B) Dose-response curves showing surviving fractions of isogenic A549 cells upon RSL3 (n=4) (A) and erastin (n=2) treatment (B) , seeded at 1000 cells per well with a double dose of drug for 48 h followed by 48 h treatment. (C) Surviving fractions of isogenic A549 cells, seeded at 1000 cells per well, upon double dose of treatment of 48 followed by 48 h with DMSO, fer-1 (2 μM), RSL3 (2 μM), and RSL3 (2 μM) in combination with fer-1 (2 μM) (n=3). (D) Surviving fractions of isogenic A549 cells, seeded at 1000 cells per well, upon double dose of treatment of 48 followed by 48 h with DMSO, fer-1 (2 μM), erastin (5 μM), and erastin (5 μM) in combination with fer-1 (2 μM) (n=3). (E-G) Dose-response curves showing surviving fractions of isogenic H1299 cells grown in plasmax upon RSL3 (E) , IKE (F) and FIN56 (G) treatment for 24 h, seeded at 2000 cells per well (n=3). (H) Surviving fractions of isogenic H1299 grown in plasmax, upon 24 h treatment with DMSO, fer-1 (2 μM), RSL3 (8 nM) and RSL3 (8 nM) combined with fer-1(2 μM) (n=3). (I, J) Dose-response curves showing surviving fractions of isogenic SAEC cells upon ML210 (I) and erastin (J) treatment for 24 h, seeded at 3000 cells per well (n=3). (K) Surviving fractions of isogenic SAEC cells, upon 24 h treatment with DMSO, fer-1 (2 μM), ML210 (0.3 μM) and ML210 (0.3 μM) in combination with fer-1 (2 μM) (n=3). (L) Surviving fractions of isogenic SAEC cells, upon 24 h treatment with DMSO, fer-1 (2 μM), erastin (0.3 μM) and erastin (0.3 μM) in combination with fer-1 (2 μM) (n=3). Data is shown as biological replicates ± S.E.M. Two-way ANOVA with Dunnett’s multiple comparisons test was performed in A-D, I-L , whereas two-way ANOVA with Tukey’s comparisons test was performed in E-H , comparing mean values of C25 LIMD1 -/- and C59 LIMD1 -/- groups to both C8 LIMD1 +/+ , shown by black asterisk, and C9 LIMD1 +/+ groups, shown by purple asterisk. * p ≤ 0.05, ** p ≤ 0.01, *** p ≤ 0.001, **** p ≤ 0.0001.
Article Snippet: Proteins were transferred onto PVDF membranes (Sigma, #IPVH00010), blocked, and probed with the following primary antibodies: LIMD1 (1:2000; in-house), LIMD1 (1:1000; Cell Signaling #13245), GPX4 (1:1000; Cell Signaling #52455S), and β-actin (1:20000 dilution; Sigma #A5441).
Techniques: