Moreover, more DAG may be converted into PC rather than PE by upregulating the mRNA expression of CPT1 and downregulating the mRNA expression of EPT1, and then LysoPC was synthesized from PC through upregulation of the mRNA expression of LCAT and downregulation of the mRNA expression of LPCAT2 in the BC group and LS+BC group. The gene discussed is LCAT; the disease is breast cancer.