首页> 外文学位 >The effect of flaxseed lignan and oil, and sesame lignan on the growth of human estrogen receptor-positive breast tumour xenografts (MCF-7) in athymic mice.
【24h】

The effect of flaxseed lignan and oil, and sesame lignan on the growth of human estrogen receptor-positive breast tumour xenografts (MCF-7) in athymic mice.

机译:亚麻籽木脂和油以及芝麻木脂对无胸腺小鼠中人雌激素受体阳性乳腺异种移植物(MCF-7)生长的影响。

获取原文
获取原文并翻译 | 示例

摘要

Whole flaxseed (FS) reduces mammary tumourigenesis, possibly due to its high lignan (secoisolariciresinol diglycoside, SDG) and/or a-linolenic acid (ALA)-rich oil (FSO) content. Sesame seed (SS) is sesamin (SES) lignan-rich and ALA-deficient, but non-protective. Like SDG, SES metabolizes to estrogen-like enterodiol (ED) and enterolactone (EL). This study determined the effects of SES, SDG and FSO on MCF-7 tumourigenesis in athymic mice under high estrogen levels to differentiate whole FS and SS effects. Only SES and FSO reduced palpable tumour size. SES and FSO increased apoptosis, while all treatments reduced proliferation, HER2 and EGFR expressions. FSO reduced Akt expression, while SES and FSO reduced pMAPK. No treatments affected IGF-1R, VEGFR, MAPK or pAkt. Only FSO increased serum ALA, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). ALA. but not SES, ED or EL, reduced proliferation in vitro . Thus, ALA, EPA and/or DHA of FSO may explain the anti-tumourigenicity of whole FS versus SS.
机译:全亚麻籽(FS)减少了乳腺肿瘤的发生,这可能是由于其高木脂素(癸二异香脂树脂二糖苷,SDG)和/或富含α-亚麻酸(ALA)的油脂(FSO)所致。芝麻种子(SS)富含木脂素和ALA缺乏,但无保护作用。与SDG一样,SES代谢为雌激素样肠二醇(ED)和肠内酯(EL)。这项研究确定了SES,SDG和FSO对高雌激素水平下无胸腺小鼠MCF-7肿瘤发生的作用,以区分整个FS和SS的作用。仅SES和FSO可减小可触知的肿瘤大小。 SES和FSO增加细胞凋亡,而所有治疗均降低增殖,HER2和EGFR表达。 FSO降低Akt表达,而SES和FSO降低pMAPK。没有治疗影响IGF-1R,VEGFR,MAPK或pAkt。只有FSO会增加血清ALA,二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)。翼。但SES,ED或EL不能降低体外增殖。因此,FSO的ALA,EPA和/或DHA可以解释整个FS对SS的抗致瘤性。

著录项

  • 作者

    Truan, Jennifer S.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Agriculture Food Science and Technology.;Health Sciences Oncology.;Health Sciences Nutrition.
  • 学位 M.Sc.
  • 年度 2009
  • 页码 102 p.
  • 总页数 102
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号