Abstract: Sphingosine1phosphate (S1P) is a kind of bioactive messenger which is catalyzed by sphingosine kinases (SphK) and mediates various biological behaviors through binding to sphingosine1phosphate receptors(S1PR). Researches demonstrate that the aberration of SphK, S1P and S1PR is closely related to the occurrence and development of cancers, such as leukemia, breast cancer, colorectal cancer and lymphoma. The interaction between S1PR1 and signal transducer and activator of transcription 3 (STAT3) is shown to take part in the pathogenesis of malignant tumors as well. Therefore, they are considered to have the potential tumortreatment value.

Key words: Neoplasms, STAT3 transcription factor, SphKS1PS1PR signaling pathway