Tissue Tension, RANK and Breast Cancer Risk

组织张力、RANK 和乳腺癌风险

基本信息

项目摘要

Mammographic density (MD) and mutations in BRCA1 (BRCA1 MT) are two strong risk factors for breast cancer. Clarifying the molecular basis of the cancer risk in these highrisk women and identifying biomarkers to identify women who would benefit from closer surveillance and chemoprevention, and validating molecular pathways towards which approved therapies exist is clinically important. We found that the extracellular matrix (ECM) in women with high MD and those with BRCA1 MTs is stiffer and that a stiff ECM sensitizes mammary epithelial cells (MECs) to progesterone to induce more receptor activator of NF kappa B ligand (RANKL). RANK stimulates breast cell growth, expands stem cells, and induces inflammation and breast cancer metastasis. We detected more RANKL in the breasts of women with high MD, and data suggest RANK receptors are higher in breast tissue from women with BRCA1 MTs who have more breast stem cells and develop triple negative breast cancer (TNBC). Studies also suggest RANK activity may be higher in African American (AA) women who often develop TNBCs. Thus, we predict that risk to malignancy in women with high MD is fostered by a stiff ECM because it sensitives the epithelium to progesterone to increase RANK signaling that drives breast cell growth and tissue inflammation and expands breast stem cell frequency. This phenotype could also explain the predilection to develop TNBCs in other high-risk women with BRCA1 MTs and AA women who prior studies suggest may have higher RANK signaling. We will test this by: 1) Determining in mouse models if tissue mechanics drives mammary gland transformation and metastasis by enhancing Rank signaling and driving cell growth and inflammation and stem cell expansion. 2) Exploring associations and causality between Rank, inflammation and stem cell frequency and ECM stiffness in breast tissue from women at high risk for cancer and those who develop TNBCs, and in breast tissue from BRCA1 MT women treated with the RANKL inhibitor Denosumab. 3) Determining how ECM stiffness sensitives MECs to progesterone, and if the breast tissue in women at higher risk to malignancy or TNBCs are intrinsically sensitive to progesterone or RANKL. The studies will: 1) Identify RANK signaling as a biomarker for breast cancer risk and TNBCs and will provide evidence to support chemoprevention trials using RANKL inhibitors. 3) Provide a biological basis for the increased risk conferred by MD, 4) Clarify mechanisms whereby BRCA1 MTs increase breast cancer and provide biomarkers to stratify risk in this population. 5) Obtain insight into the biological basis of the aggressive TNBC breast cancers in AA women.
乳房x线摄影密度(MD)和BRCA1突变(BRCA1 MT)是乳腺癌的两个重要危险因素。

项目成果

期刊论文数量(25)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Modeling Tissue Polarity in Context.
  • DOI:
    10.1016/j.jmb.2018.07.015
  • 发表时间:
    2018-09-28
  • 期刊:
  • 影响因子:
    5.6
  • 作者:
    Tharp KM;Weaver VM
  • 通讯作者:
    Weaver VM
Derivation of a nuclear heterogeneity image index to grade DCIS.
DCI级核异质性图像指数的推导。
Feeling Stress: The Mechanics of Cancer Progression and Aggression.
Patterning the Geometry of Human Embryonic Stem Cell Colonies on Compliant Substrates to Control Tissue-Level Mechanics.
在顺应基质上构建人类胚胎干细胞集落的几何形状以控制组织水平力学。
  • DOI:
    10.3791/60334
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Muncie,JonathonM;Falcón-Banchs,Roberto;Lakins,JohnathonN;Sohn,LydiaL;Weaver,ValerieM
  • 通讯作者:
    Weaver,ValerieM
NCI's publication affiliation conundrum: Reframing innovation to incentivize an equitable path for advocate representation.
  • DOI:
    10.1016/j.tranon.2021.101325
  • 发表时间:
    2022-03
  • 期刊:
  • 影响因子:
    5
  • 作者:
    Samson S;Northey JJ;Acerbi I;Goga A;Flink CL;Weaver VM;LaBarge MA
  • 通讯作者:
    LaBarge MA
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E.Shelley Hwang其他文献

E.Shelley Hwang的其他文献

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{{ truncateString('E.Shelley Hwang', 18)}}的其他基金

Administrative Core
行政核心
  • 批准号:
    10900830
  • 财政年份:
    2023
  • 资助金额:
    $ 56.08万
  • 项目类别:
Breast Pre-Cancer Atlas Center
乳腺癌前期阿特拉斯中心
  • 批准号:
    10819754
  • 财政年份:
    2023
  • 资助金额:
    $ 56.08万
  • 项目类别:
Extension to the HTAN Pre-Cancer Atlas Project
HTAN 癌前图谱项目的扩展
  • 批准号:
    10269615
  • 财政年份:
    2020
  • 资助金额:
    $ 56.08万
  • 项目类别:
Tissue Tension, RANK and Breast Cancer Risk
组织张力、RANK 和乳腺癌风险
  • 批准号:
    9918875
  • 财政年份:
    2018
  • 资助金额:
    $ 56.08万
  • 项目类别:
Breast Pre-Cancer Atlas Center
乳腺癌前期阿特拉斯中心
  • 批准号:
    10732796
  • 财政年份:
    2018
  • 资助金额:
    $ 56.08万
  • 项目类别:
Administrative Core
行政核心
  • 批准号:
    10732797
  • 财政年份:
    2018
  • 资助金额:
    $ 56.08万
  • 项目类别:
Biospecimen Acquisition, Processing and Classification Unit
生物样本采集、处理和分类装置
  • 批准号:
    9627376
  • 财政年份:
    2018
  • 资助金额:
    $ 56.08万
  • 项目类别:
(PQC3) Genomic Diversity and Microenvironment as Drivers of Metastasis in DCIS
(PQC3) 基因组多样性和微环境作为 DCIS 转移的驱动因素
  • 批准号:
    8896592
  • 财政年份:
    2014
  • 资助金额:
    $ 56.08万
  • 项目类别:
(PQC3) Genomic Diversity and Microenvironment as Drivers of Metastasis in DCIS
(PQC3) 基因组多样性和微环境作为 DCIS 转移的驱动因素
  • 批准号:
    8687308
  • 财政年份:
    2014
  • 资助金额:
    $ 56.08万
  • 项目类别:
(PQC3) Genomic Diversity and Microenvironment as Drivers of Metastasis in DCIS
(PQC3) 基因组多样性和微环境作为 DCIS 转移的驱动因素
  • 批准号:
    9119786
  • 财政年份:
    2014
  • 资助金额:
    $ 56.08万
  • 项目类别:

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