BRCA Genes in Breast Cancer Chemoprevention
BRCA 基因在乳腺癌化学预防中的作用
基本信息
- 批准号:7416594
- 负责人:
- 金额:$ 28.61万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2005
- 资助国家:美国
- 起止时间:2005-04-01 至 2010-02-28
- 项目状态:已结题
- 来源:
- 关键词:Animal ModelAntioxidantsBRCA1 MutationBRCA1 geneBRCA2 geneBiological AssayBreastBreast Cancer PreventionCancer-Predisposing GeneCarcinogen MetabolismCarcinogensCategoriesCell LineCellsCervicalChemopreventionChemopreventive AgentClinicalDNA DamageDNA Microarray ChipDNA Microarray formatDataDietary SupplementationEndometrial CarcinomaEpithelial CellsEstrogensExonsExperimental Animal ModelExperimental ModelsFigs - dietaryGene ExpressionGene Expression ProfilingGenesGenetic TranscriptionGlutathioneGoalsGrowthHereditary Breast CarcinomaHormonesHumanIn VitroIndole-3-CarbinolMalignant neoplasm of cervix uteriMalignant neoplasm of prostateMammary TumorigenesisMammary glandMediatingMessenger RNAMetabolismModelingMolecularMolecular TargetMusMutationOutcome StudyPathway interactionsPatternPhytochemicalPreventionProstateProteinsPublishingRiskRoleSmall Interfering RNATamoxifenTestingToxic effectTranscriptional ActivationTumor Suppressor ProteinsUp-RegulationWomancancer typecell growthcruciferous vegetablefallsin vivomalignant breast neoplasmmouse modelpreventrepairedresponsesulfotransferasetranscription factortumortumorigenesis
项目摘要
DESCRIPTION (provided by applicant): Background. Clinical-epidemiological and animal model studies suggest that indole-3-carbinol [I3C, a phytochemical from cruciferous vegetables] has chemopreventive activity for hormone-dependent tumor types, including breast, cervical, and endometrial cancers. Its anti-tumor activity is probably due to both hormone-dependent and hormone independent actions. Mutations of the breast cancer susceptibility genes BRCA1 and BRCA2 each confer a significantly increased risk of several hormonally-responsive cancer types (e.g., breast and prostate cancers). Preliminary studies. Our published and preliminary studies suggest that some of the hormone-dependent and hormone-independent actions of DC in human breast, cervical cancer, and prostate cell lines are mediated through the up-regulation of BRCA1 and BRCA2 expression. Gene expression profiling using DNA microarrays suggest an overlap between the gene expression patterns induced by DM (the major active metabolite of ISC) vs BRCA1. Hypothesis. We postulate that chemoprevention by I3C is due, in part, to BRCA1 (and probably BRCA2) mediated activities: e.g., inhibition of E2-stimulated cell growth and up-regulation of growth arrest and DNA damage-responsive genes (GADDs) and GSTs. I3C may also induce these and other tumor suppressor pathways independently of BRCA1; and BRCA1/2 may function synergistically with these other I3C pathways to suppress tumorigenesis. Objectives. To test these hypotheses, we will carry out three specific aims. In SA1, we will investigate the mechanism by which I3C induces BRCA1 and BRCA2; and we will assess the contribution of the endogenous BRCA genes to the estrogen-dependent and estrogen-independent molecular and cellular actions of I3C in human mammary epithelial cells, using small interfering RNAs to each BRCA gene that we have already developed. In SA2, we will assess the roles of the BRCA genes in the spectrum of DBVI-induced transcriptional alterations in mammary epithelial cells. And in SA3, we will validate some of these in vitro observations using two in vivo experimental models for prevention of mammary cancer by dietary supplementation with I3C. One model will feature a mammary-targeted mutation of Brcal. Significance. These studies will establish that the BRCA genes are molecular targets for indole-3-carbinol that contribute to its ability to prevent breast cancer. A successful outcome of these studies would suggest the use of I3C in chemoprevention of sporadic and hereditary breast cancers. The latter may be particularly useful, since recent studies suggest that Tamoxifen may not protect women with BRCA1 mutations from developing breast cancer.
描述(由申请人提供):背景。临床流行病学和动物模型研究表明,吲哚-3-甲醇[I3C,一种来自十字花科蔬菜的植物化学物质]对激素依赖性肿瘤类型(包括乳腺癌、宫颈癌和子宫内膜癌)具有化学预防作用。其抗肿瘤活性可能与激素依赖性和激素非依赖性双重作用有关。乳腺癌易感基因BRCA1和BRCA2的突变都会显著增加患几种激素反应性癌症类型(如乳腺癌和前列腺癌)的风险。初步研究。我们发表的和初步的研究表明,DC在人类乳腺癌、宫颈癌和前列腺细胞系中的一些激素依赖性和激素非依赖性作用是通过上调BRCA1和BRCA2表达来介导的。使用DNA微阵列进行基因表达谱分析表明,DM (ISC的主要活性代谢物)与BRCA1诱导的基因表达模式之间存在重叠。假设。我们假设I3C的化学预防部分是由于BRCA1(也可能是BRCA2)介导的活性:例如,抑制e2刺激的细胞生长,上调生长停滞和DNA损伤反应基因(gadd)和gst。I3C也可能独立于BRCA1诱导这些和其他肿瘤抑制通路;BRCA1/2可能与其他I3C通路协同作用,抑制肿瘤发生。目标。为了验证这些假设,我们将实现三个具体目标。在SA1中,我们将研究I3C诱导BRCA1和BRCA2的机制;我们将评估内源性BRCA基因对人类乳腺上皮细胞中I3C依赖雌激素和不依赖雌激素的分子和细胞作用的贡献,使用我们已经开发的每个BRCA基因的小干扰rna。在SA2中,我们将评估BRCA基因在dbvi诱导的乳腺上皮细胞转录改变谱中的作用。在SA3中,我们将通过两种体内实验模型验证一些体外观察结果,通过膳食补充I3C来预防乳腺癌。其中一个模型将以Brcal的乳腺靶向突变为特征。的意义。这些研究将确定BRCA基因是吲哚-3-甲醇的分子靶标,有助于其预防乳腺癌的能力。这些研究的成功结果将提示I3C用于散发性和遗传性乳腺癌的化学预防。后者可能特别有用,因为最近的研究表明,他莫昔芬可能不能保护携带BRCA1突变的女性不患乳腺癌。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Eliot M. Rosen其他文献
Regulation of progesterone receptor signaling by BRCA1 in mammary cancer
BRCA1 对乳腺癌中孕酮受体信号传导的调节
- DOI:
- 发表时间:
2006 - 期刊:
- 影响因子:0
- 作者:
Pragati Katiyar;Yongxian Ma;Saijun Fan;R. Pestell;Priscilla A. Furth;Eliot M. Rosen - 通讯作者:
Eliot M. Rosen
Hepatocyte growth factor/scatter factor effects on epithelia. Regulation of intercellular junctions in transformed and nontransformed cell lines, basolateral polarization of c-met receptor in transformed and natural intestinal epithelia, and induction of rapid wound repair in a transformed model epi
肝细胞生长因子/分散因子对上皮细胞的影响。
- DOI:
- 发表时间:
1994 - 期刊:
- 影响因子:15.9
- 作者:
Asma Nusrat;C. Parkos;A. E. Bacarra;P. Godowski;C. Delp;Eliot M. Rosen;J. L. Madara - 通讯作者:
J. L. Madara
P53-independent downregulation of p73 in human cancer cells treated with Adriamycin
- DOI:
10.1007/s002800000196 - 发表时间:
2001-02-01 - 期刊:
- 影响因子:2.300
- 作者:
Renqi Yuan;Qinghui Meng;Hao Hu;Itzhak D. Goldberg;Eliot M. Rosen;Saijun Fan - 通讯作者:
Saijun Fan
Microbeam radiation therapy: tissue dose penetration and BANG-gel dosimetry of thick-beams' array interlacing.
微束放射治疗:组织剂量穿透和厚束阵列交错的 BANG-gel 剂量测定。
- DOI:
10.1016/j.ejrad.2008.04.055 - 发表时间:
2008 - 期刊:
- 影响因子:3.3
- 作者:
F. Dilmanian;P. Romanelli;Z. Zhong;Ruiliang Wang;Mark E Wagshul;J. Kalef;Marek J. Maryanski;Eliot M. Rosen;David J. Anschel - 通讯作者:
David J. Anschel
Response of rat intracranial 9 L gliosarcoma to microbeam radiation therapy 1
大鼠颅内9L胶质肉瘤对微束放射治疗的反应1
- DOI:
- 发表时间:
2005 - 期刊:
- 影响因子:0
- 作者:
F. Dilmanian;T. Button;Géraldine Le Duc;Nan Zhong;Louis A. Peña;Jennifer A. L. Smith;Steve R. Martinez;T. Bacarian;J. Tammam;Baorui Ren;Peter M. Farmer;John Kalef;P. Micca;M. Nawrocky;James A. Niederer;F. Recksiek;Alexander Fuchs;Eliot M. Rosen - 通讯作者:
Eliot M. Rosen
Eliot M. Rosen的其他文献
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{{ truncateString('Eliot M. Rosen', 18)}}的其他基金
Enhancing cancer treatment by normal tissue protection
通过保护正常组织增强癌症治疗
- 批准号:
8671485 - 财政年份:2014
- 资助金额:
$ 28.61万 - 项目类别:
Development of BRCA1-mimetic drugs for breast cancer
乳腺癌 BRCA1 模拟药物的开发
- 批准号:
8403554 - 财政年份:2010
- 资助金额:
$ 28.61万 - 项目类别:
Development of BRCA1-mimetic drugs for breast cancer
乳腺癌 BRCA1 模拟药物的开发
- 批准号:
8610151 - 财政年份:2010
- 资助金额:
$ 28.61万 - 项目类别:
Development of BRCA1-mimetic drugs for breast cancer
乳腺癌 BRCA1 模拟药物的开发
- 批准号:
8022946 - 财政年份:2010
- 资助金额:
$ 28.61万 - 项目类别:
Development of BRCA1-mimetic drugs for breast cancer
乳腺癌 BRCA1 模拟药物的开发
- 批准号:
8207275 - 财政年份:2010
- 资助金额:
$ 28.61万 - 项目类别:
BRCA Genes in Breast Cancer Chemoprevention
BRCA 基因在乳腺癌化学预防中的作用
- 批准号:
6925842 - 财政年份:2005
- 资助金额:
$ 28.61万 - 项目类别:
BRCA Genes in Breast Cancer Chemoprevention
BRCA 基因在乳腺癌化学预防中的作用
- 批准号:
7024493 - 财政年份:2005
- 资助金额:
$ 28.61万 - 项目类别:
BRCA Genes in Breast Cancer Chemoprevention
BRCA 基因在乳腺癌化学预防中的作用
- 批准号:
7614406 - 财政年份:2005
- 资助金额:
$ 28.61万 - 项目类别:
BRCA Genes in Breast Cancer Chemoprevention
BRCA 基因在乳腺癌化学预防中的作用
- 批准号:
7227848 - 财政年份:2005
- 资助金额:
$ 28.61万 - 项目类别:
ROLE OF BRCA1 AS A HUMAN PROSTATE SUPPRESSOR GENE
BRCA1 作为人类前列腺抑制基因的作用
- 批准号:
6173750 - 财政年份:1999
- 资助金额:
$ 28.61万 - 项目类别:
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