LGMN and glioblastoma: In addition, circ‐LGMN (legumain) may also promote the development of GBM by targeting the miR‐127‐3p /LGMN axis, and circ‐LGMN can upregulate LGMN expression by sponging miR‐127‐3p, thus facilitating the proliferation and invasion of tumour cells and tissues.126