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. 2023 Apr 10;14:2018. doi: 10.1038/s41467-023-37783-4

Fig. 3. BM niche derived NTN1 is essential for maintaining HSC homeostasis.

Fig. 3

ac BM analysis in young (5-6 month old) LepR-NTN1 mice demonstrating a decrease in BM cellularity a (N = 8 mice/group), and HSC frequency b, c (N = 6 mice/group), as compared to littermate controls. d, e Competitive HSCtransplantations (250 CD45.2+ donor HSCs with 106 CD45.1 WBM competitor/recipient) demonstrating a loss of long-term (>6 months post-transplant) HSC engraftment potential d without lineage alterations e in HSCs derived from LepR-NTN1 mice (N = 6 donors/group; N = 18 Recipients for Control donors, N = 14 Recipients for LepR-NTN1 donors). f RT-qPCR analysis of FACS purified LepR+ MSCs demonstrating decreased NTN1 expression in LepR-NTN1 mice (N = 3 mice/group). gi BM analysis of CDH5-NTN1 mice demonstrating no gross changes in BM cellularity g, and HSC frequency h, i, as compared to littermate controls (N = 5/group). j, k Competitive HSC transplantations (250 CD45.2+ donor HSCs with 106 CD45.1 WBM competitor/recipient) demonstrating a loss of long-term engraftment potential j, along with a myeloid-biased output k, in HSCs derived from CDH5-NTN1 mice (N = 6 donors/group; N = 14 recipients/group). l RT-qPCR analysis of FACS purified BMECs demonstrating decreased NTN1 expression in CDH5-NTN1 mice (N = 3 mice/group). Error bars represent sample mean ± standard error of the mean (SEM). Statistical significance determined using two-tailed unpaired t-test. *P < 0.05; **P < 0.01; ***P < 0.001. ns denotes statistically not significant.