WNT3A and Huntington disease: Firstly, we investigated whether SF expressed Wnt3A and Wnt7B, two members of the canonical Wnt signalling associated with OA physiopathology.21, 22 SF did not express Wnt3A (data not shown), while Wnt7B mRNA transcripts were detected in cells from HD and OA patients with a higher expression in OA‐SF (Figure 5A).