Journal: Cell reports
Article Title: Macrophage memories of early-life injury drive neonatal nociceptive priming
doi: 10.1016/j.celrep.2024.114129
Figure Lengend Snippet: (A) Example protein arrays of BMDM lysates with knockdown of p75NTR and stimulated with the indicated factors. (B) Heatmap indicating protein expression detected across each stimulus; n = 4/group. (C) Examples of significantly regulated proteins from the arrays (* p < 0.05 vs. siCON+Veh, ^ p < 0.05 vs. sip75+LPS, # p = 0.05 vs. sip75+Veh, ## p > 0.05 vs. sip75+Veh; one-way ANOVA, Tukey’s or ANOVA on ranks, Dunn’s; n = 4/group). (D–F) Representative images of iPSC-derived macrophages, sensory neurons, and Rhod-2 responses to ATP. Arrows, increased responses; arrowheads, new responses. Scale bar, 25 μm. (G) Example calcium transients from iPSC-derived sensory neurons in response to ATP, capsaicin, or KCl. Arrows indicate when the ATP or capsaicin was added, and the brackets indicate the part of the trace that was analyzed to calculate responses. scale bar, 20 μM. (H) Exposure of iPSC-derived sensory neurons to medium from macrophages with loss of p75NTR treated with NGF caused decreased responsiveness of neurons to ATP (F = 4.257) (* p < 0.04 vs. all other conditions, one-way ANOVA with Tukey’s post hoc, n = 15 cells per group). (I) No changes in capsaicin responses (F = 2.702) were observed (one way ANOVA). Mean ± SEM or percent change from controls with variance.
Article Snippet: Human induced pluripotent stem cells (iPSC) derived CD14 + monocytes (ATCC, Manassas, VA, Cat No. DYS0100) were plated in macrophage differentiation medium (RPMI-1640 Medium/10% Fetal Bovine Serum (FBS), supplemented with 100 ng/mL human M-CSF, and 1% Pen/Strep) in 24 well plate at a density of 10 ^ 5 cells/ml according to manufacturer’s directions.
Techniques: Knockdown, Expressing, Derivative Assay