Representative FACS gating strategy to identify B cell subsets in the BM at day 8 (A) and day 28 (B) after T3-SCI, T9-SCI, T3-Lam, T9-Lam or in un-injured control mice. Contour plots show the mean frequency and standard deviation of B220+AA4.1+ Developing B cells in the BM (left panels) and further subsetting of IgM+CD19+ immature (IMM) and IgM−CD19+ Pro/Pre B cell populations (right panels) among live singlets. At day 8 post-SCI, n=5 for un-injured, n=8 for T9-Lam, n=6 for T9-SCI, n=8 for T3-Lam, and n=5 for T3-SCI. At day 28 post-SCI, n=5 for uninjured, n=7 for T9-Lam, n=5 for T9-SCI, n=7 for T3-Lam, and n=6 for T3-SCI.