Determining susceptibility loci in triple negative breast cancer using a novel pre-clinical model

使用新型临床前模型确定三阴性乳腺癌的易感位点

基本信息

项目摘要

SUMMARY: The lack of understanding how genetic variants affect molecular mechanisms that mediate TNBC aggression and impact effective anti-tumor therapies poses a substantial obstacle to advancement in cancer therapies. Current genetically engineered mouse models (GEMMs) of TNBC lack genetic complexity because mice are on a single inbred background which impairs the rigorous investigation into how individual genetic variation might impact tumor initiation, progression, or response to therapy. Because of this limitation, pre-clinical models typically fail to translate well to impact patient care. Although human studies have identified risk factors for developing TNBC with both environmental and genetics approaches, studies often fall short due to the inability to control variables or sample enough individuals. To address these limitations, we have pioneered a transformative approach with the creation of a novel murine model with robust, reliable, and reproducible phenotypic and genomic variation. We systematically crossed the C3(1)-Tantigen (C3Tag) GEMM, well established to resemble human basal-like TNBC, into the BXD family - the largest and best characterized genetic reference population. Preliminary data demonstrate that BXD-TNBC F1 isogenic hybrids have greatly differing severity of TNBC phenotypes, indicating genetic modifiers that impact disease. The advantage of the BXD-TNBC hybrids is that every genome is defined and reproducible. Using cutting edge systems genetics and molecular candidate validation, we will identify genetic modifiers of TNBC. Cross-species comparisons with publicly available human GWAS and genomic databases will identify conserved, biologically relevant, and targetable candidates to yield highly impactful and readily translatable findings. We hypothesize that the interaction of modifier and causal genes govern the heterogeneity of TNBC phenotypes and alter response to therapy. Aim 1 will identify and validate novel genetic modifiers of TNBC phenotypes through unbiased systematic quantification of TNBC severity and heritability across BXD-TNBC hybrids. Pilot studies revealed candidate genes that impact patient survival in TNBC. Aim 2 will identify and validate novel genetic modifiers of therapeutic efficacy across BXD-TNBC hybrids. Last, the genetic contribution linking obesity and TNBC is currently unknown which is a problem because obesity exacerbates poor BC outcomes and reduces therapeutic efficacy in patients. Aim 3 will identify genetic modifiers of susceptibility to obesity exacerbated TNBC. Capitalizing upon our team’s expertise, the overall objective is to interrogate this replicable genetic resource using established successful strategies to inform on the genetics of human risk and response to therapy. In sum, the lack of targeted therapies for TNBC presents a great unmet clinical need. The deliverables of this novel BXD-TNBC will define susceptibility loci, candidate genes, and molecular networks that underlie variation of multiple TNBC phenotypes. Results generated will thus be transformative with high impact, leading to the identification of genes modifying heterogeneity and networks underlying individual differences in TNBC.
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项目成果

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Liza Makowski-Hayes其他文献

Liza Makowski-Hayes的其他文献

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{{ truncateString('Liza Makowski-Hayes', 18)}}的其他基金

Determining the contribution of microbial-derived metabolites to protective immunity in obesity-driven cancer risk.
确定微生物衍生的代谢物对肥胖驱动的癌症风险中的保护性免疫的贡献。
  • 批准号:
    10505372
  • 财政年份:
    2022
  • 资助金额:
    $ 40.47万
  • 项目类别:
Determining susceptibility loci in triple negative breast cancer using a novel pre-clinical model
使用新型临床前模型确定三阴性乳腺癌的易感位点
  • 批准号:
    10444546
  • 财政年份:
    2022
  • 资助金额:
    $ 40.47万
  • 项目类别:
Role of microbial-modulated bile acid receptor signaling in breast cancer
微生物调节胆汁酸受体信号传导在乳腺癌中的作用
  • 批准号:
    10404525
  • 财政年份:
    2020
  • 资助金额:
    $ 40.47万
  • 项目类别:
Role of microbial-modulated bile acid receptor signaling in breast cancer
微生物调节胆汁酸受体信号传导在乳腺癌中的作用
  • 批准号:
    10053592
  • 财政年份:
    2020
  • 资助金额:
    $ 40.47万
  • 项目类别:
Role of microbial-modulated bile acid receptor signaling in breast cancer
微生物调节胆汁酸受体信号传导在乳腺癌中的作用
  • 批准号:
    10219210
  • 财政年份:
    2020
  • 资助金额:
    $ 40.47万
  • 项目类别:
Role of microbial-modulated bile acid receptor signaling in breast cancer
微生物调节胆汁酸受体信号传导在乳腺癌中的作用
  • 批准号:
    10614037
  • 财政年份:
    2020
  • 资助金额:
    $ 40.47万
  • 项目类别:
(PQA2) Reversing Carcinogenic Effect of Obesity on Basal-like Breast Cancer
(PQA2) 逆转肥胖对基底样乳腺癌的致癌作用
  • 批准号:
    8590946
  • 财政年份:
    2013
  • 资助金额:
    $ 40.47万
  • 项目类别:
Macrophage Mitochondrial Stress in Inflammation, Insulin Resistance & Obesity
炎症、胰岛素抵抗中的巨噬细胞线粒体应激
  • 批准号:
    8208231
  • 财政年份:
    2007
  • 资助金额:
    $ 40.47万
  • 项目类别:
Macrophage Mitochondrial Stress in Inflammation, Insulin Resistance & Obesity
炎症、胰岛素抵抗中的巨噬细胞线粒体应激
  • 批准号:
    8121191
  • 财政年份:
    2007
  • 资助金额:
    $ 40.47万
  • 项目类别:
Macrophage Mitochondrial Stress in Inflammation, Insulin Resistance & Obesity
炎症、胰岛素抵抗中的巨噬细胞线粒体应激
  • 批准号:
    7479191
  • 财政年份:
    2007
  • 资助金额:
    $ 40.47万
  • 项目类别:

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