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. 2024 May 1;12:RP91883. doi: 10.7554/eLife.91883

Figure 5. Bmpr1a deficiency leads to an auricle chondrocyte fate switch to osteoblasts.

(A) Heatmaps of osteoblast-related genes and chondrocyte-related genes differentially expressed in the Bmpr1a-deficient and control mice. n=3. (B). Immunostaining results for Col1α1 in ear sections of the Bmpr1a-deficient and control mice. Scale bars=20 μm. Arrows: positive signals. (C) Alkaline phosphatase (ALP) activity was greatly increased in the auricle of the Prrx1CreERT; Bmpr1af/f mice compared to the control mice. Scale bars=50 μm. Arrows: positive signals. (D) WB results showed that the expression of the osteoblast marker genes Runx2 and osteocalcin was increased in the mutant samples. Right panel: quantitation data. n=3. Unpaired two-tailed Student’s t-test were applied to evaluate the correlation data in (D), p<0.05 was considered as statistically significant.

Figure 5—source data 1. Original file for the western blot in Figure 5D.

Figure 5.

Figure 5—figure supplement 1. Expression of chondrocyte-related genes and Sox9 in the auricle of control and Bmpr1a-deficient mice.

Figure 5—figure supplement 1.

(A) FKPM values for chondrocyte-related genes. (B) FKPM values for Sox9. (C) qPCR results for Sox9.