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Dietary phytosterol inhibits the growth and metastasis of MDA-MB-231 human breast cancer cells grown in SCID mice.

Abstract：

:The objective of the present study was to investigate the effect of dietary phytosterols on the growth and metastasis of the human breast cancer MDA-MB-231 cell line xenografted in SCID mice. Two groups of animals were fed AIN-93G diet supplemented with 0.2% cholic acid and 2% sterol (cholesterol or phytosterol mixture) for 15 days before inoculation of the tumor into the right inguinal mammary fat pad. Tumor growth and food consumption were recorded weekly throughout the 8 weeks of the experiment. At the end of the experiment, the animals fed phytosterol had a 40% lower serum cholesterol and 20 and 30 fold higher serum beta-sitosterol and campesterol, respectively as compared to those fed cholesterol. There was no difference between the two groups in body weight and food consumption. However, the tumor size in animals fed phytosterols was 33% smaller (P < 0.03) and had 20% fewer metastases to lymph nodes and lungs than the cholesterol group. At termination, the tumor weight of the animals fed the phytosterol diet was also less (P < 0.07) than that of the cholesterol group. It is concluded that dietary phytosterols retard the growth and spread of breast cancer cells.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Awad AB,Downie A,Fink CS,Kim U

subject

Has Abstract

pub_date

2000-03-01 00:00:00

pages

821-4

issue

2A

eissn

0250-7005

issn

1791-7530

journal_volume

20

pub_type

杂志文章

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