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Small molecule inhibition of arylamine N-acetyltransferase Type I inhibits proliferation and invasiveness of MDA-MB-231 breast cancer cells.

Abstract：

:Arylamine N-acetyltransferase 1 is a phase II metabolizing enzyme that has been associated with certain breast cancer subtypes. While it has been linked to breast cancer risk because of its role in the metabolic activation and detoxification of carcinogens, recent studies have suggested it may be important in cell growth and survival. To address the possible importance of NAT1 in breast cancer, we have used a novel small molecule inhibitor (Rhod-o-hp) of the enzyme to examine growth and invasion of the breast adenocarcinoma line MDA-MB-231. The inhibitor significantly reduced cell growth by increasing the percent of cells in G2/M phase of the cell cycle. Rhod-o-hp also reduced the ability of the MDA-MB-231 cells to grow in soft agar. Using an in vitro invasion assay, the inhibitor significantly reduced the invasiveness of the cells. To test whether this effect was due to inhibition of NAT1, the enzyme was knocked down using a lentivirus-based shRNA approach and invasion potential was significantly reduced. Taken together, the results of this study demonstrate that NAT1 activity may be important in breast cancer growth and metastasis. The study suggests that NAT1 is a novel target for breast cancer treatment.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Tiang JM,Butcher NJ,Minchin RF

doi

10.1016/j.bbrc.2010.01.087

subject

Has Abstract

pub_date

2010-02-26 00:00:00

pages

95-100

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(10)00136-1

journal_volume

393

pub_type

杂志文章

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