Previous studies revealed a positive correlation between O-GlcNAcylation and tumor growth via the stabilization of target proteins, with O-GlcNAcylation transferase (OGT) being the only enzyme capable of catalyzing the addition of O-GlcNAcylation to these proteins. Scientists at Sun Yat-Sen University and affiliated organizations investigated the role of OGT in the progression and drug resistance of multiple myeloma.