MAPK6 and breast cancer: Moreover, TATA-box-binding protein-associated factor 15 (TAF15) was reported to be recruited to ERK3 mRNA via the long non-coding RNA (lncRNA) LINC00649 in lung squamous cell carcinoma and via the circular RNA (circRNA) circDNAJC11 in breast cancer cells and upregulate ERK3 mRNA level, likely by increasing ERK3 mRNA stability [77,78].