Journal: The Journal of Experimental Medicine
Article Title: RNase T2 deficiency promotes TLR13-dependent replenishment of tissue-protective Kupffer cells
doi: 10.1084/jem.20230647
Figure Lengend Snippet: Analyses of Tlr13 −/− , Rnaset2 −/− , and Rnaset2 −/− Tlr13 −/− mice. (A) Survival curve of wild-type mice (black) and Rnaset2 −/− mice (red). (B) Schematic representation of Tlr13 gene targeting. The filled and open boxes represent coding and 3′-untranslated regions of the Tlr13 gene, respectively. Neo indicates the neomycin resistance gene: B, BamH I; and E, EcoR I. (C) PCR analyses with primers indicated in B to determine genotypes of indicated mice. (D) Production of IL-6 and CCL5 by BM-derived macrophages left unstimulated or stimulated with indicated TLR ligands. Results represent mean values with SD from triplicates. (E) Hb concentration, hematocrit, and mean corpuscular volume of RBCs in indicated mice ( n = 8–16). (F) Percentage of IL-6 + cells in splenic Ly6C low or Ly6C hi macrophages from wild-type mice with or without antibiotics treatment after in vitro stimulation with the TLR13 ligand Sa19 (5 µg/ml) or the TLR4 ligand lipid A (1 µg/ml) together with Brefeldin A for 3 h ( n = 3). (G) Immunoblotting of whole cell lysates from wild-type and Rnaset2 −/− Ba/F3 with anti-RNase T2 mAb. β-actin was also immunoprobed to show that the amounts of samples are equal. (H) Ba/F3 expressing Tlr3, Tlr7, or Tlr13-HA tag were subjected to membrane-permeabilized staining with mAbs to TLR3 (PaT3), TLR7 (A94B10), TLR13 (M13), and αHA. (I and J) The gating strategy of splenic cells (I) and hepatic cells (J). (K) Serum titer of autoantibodies to SSA, Sm, and dsDNAs in indicated mice ( n = 8–26). (L) The numbers of CD11b + Ly6C hi and CD11b + Ly6C low macrophages in the spleens of indicated mice ( n = 5–8). *P < 0.05, **P < 0.01, ***P < 0.001 and ****P < 0.0001. Source data are available for this figure: .
Article Snippet: Monoclonal anti-mouse CD4 (clone RM4-5) antibody was purchased from Invitrogen and monoclonal anti-mouse Axl antibody (clone 175128) from R&D Systems.
Techniques: Derivative Assay, Concentration Assay, In Vitro, Western Blot, Expressing, Membrane, Staining