Expression of autotaxin (NPP-2) is closely linked to invasiveness of breast cancer cells

So Young Yang, Jangsoon Lee, Chang Gyo Park, Seonghwan Kim, Sungyoul Hong, Hyun Cheol Chung, Seong Ki Min, Jeung Whan Han, Hyang Woo Lee, Hoi Young Lee

Research output: Contribution to journalArticlepeer-review

153 Citations (Scopus)


Autotaxin (ATX), originally isolated from human melanoma cells, is a novel metastasis-enhancing motogen and angiogenesis factor. In the present study, we compared the expression level of ATX mRNA between normal and breast cancer tissues and found that the expression of ATX mRNA was closely linked to invasiveness of cancer cells. Reverse transcriptase-polymerase chain reaction (RT-PCR) and immunohistochemical analysis showed higher cellular ATX mRNA expression in the cancer than normal breast tissues. MDA-MB-435S breast cancer cells, expressing higher amount of ATX mRNA, showed greater relative invasiveness to fibroblast-conditioned medium (FCM) than MCF7, MDA-MB-231, and HBL-100 breast cancer cells. Furthermore, ATX-transfected MCF7 cells showed increased motility and invasiveness than vector-transfected MCF7 cells. Collectively, our results suggest that the expression of ATX is closely linked to the invasiveness of breast cancer cells.

Original languageEnglish
Pages (from-to)603-608
Number of pages6
JournalClinical and Experimental Metastasis
Issue number7
Publication statusPublished - 2002

Bibliographical note

Funding Information:
This work was supported by Korea Research Foundation Grant (KRF-2000-041-F00135) and by the Korea Science and Engineering Fund through the Cancer Metastasis Research Center (CMRC) at Yonsei University. We would like thank Dr M.L. Stracke (Laboratory of pathology, National Cancer Institute, NIH) for helpful discussions and advice

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research


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