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    • 3. 发明授权
    • DNA methylation markers based on epigenetic stem cell signatures in cancer
    • 基于癌基因表型遗传干细胞特征的DNA甲基化标记
    • US08586313B2
    • 2013-11-19
    • US12520841
    • 2007-12-27
    • Peter W. LairdMartin Widschwendter
    • Peter W. LairdMartin Widschwendter
    • C12Q1/68
    • C12Q1/6886C12Q2600/106C12Q2600/118C12Q2600/154C12Q2600/158
    • In particular aspects, stem-cell polycomb group (PcG) targets are more likely to have cancer-specific promoter DNA methylation than non-targets, indicating a stem-cell origin of cancer, where reversible gene repression is replaced by permanent silencing, locking the cell into a perpetual state of self-renewal and predisposition to subsequent malignant transformation. Exemplary aspects provide methods for identifying preferred DNA methylation markers for a cellular proliferative disorder and/or cancer and markers for developmental lineages and/or stages, based on identifying PcG protein or PcG repressive complex genomic target loci within a precursor cell (e.g., stem or progenitor cell) population, and determining, in cells of the proliferative disorder and/or cancer or cell of the particular developmental lineages and/or stages, a characteristic methylation status of the PcG target loci. Additional aspects provide methods for validating and/or monitoring a precursor cell (e.g., stem cell) population. Diagnostic and prognostic methods for ovarian and breast cancer are provided.
    • 在特定方面,干细胞多梳组(PcG)靶标比非靶标更可能具有癌症特异性启动子DNA甲基化,表明癌症的干细胞来源,其中可逆基因抑制被永久性沉默替代,锁定 细胞进入自我更新的永久状态,并且随之而来的恶性转化。 基于识别前体细胞内的PcG蛋白或PcG抑制性复合基因组靶基因座(例如,茎或者其中),鉴定出用于细胞增殖性疾病和/或癌症的优选DNA甲基化标记物和用于发育谱系和/或阶段的标志物的方法, 祖细胞)群体,并且在特定发育谱系和/或阶段的增殖性疾病和/或癌症或细胞的细胞中确定PcG靶基因座的特征性甲基化状态。 另外的方面提供了验证和/或监测前体细胞(例如干细胞)群体的方法。 提供卵巢癌和乳腺癌的诊断和预后方法。
    • 6. 发明申请
    • Association of Breast Cancer DNA Methylation Profiles with Hormone Receptor Status and Response to Tamoxifen
    • 乳腺癌DNA甲基化配置文件与激素受体状态和他莫昔芬反应的关系
    • US20090136921A1
    • 2009-05-28
    • US11628390
    • 2005-06-01
    • Martin WidschwendterKimberly D. SiegmundPeter A. JonesPeter W. Laird
    • Martin WidschwendterKimberly D. SiegmundPeter A. JonesPeter W. Laird
    • C12Q1/68C40B30/00
    • C12Q1/6886C12Q2600/106C12Q2600/118C12Q2600/154
    • Particular embodiments provide novel and clinically useful DNA methylation predictors of hormone receptor status, and predictors of response to endocrine (e.g., hormonal) and non-endocrine breast cancer therapy. The ESR1 gene, encoding the estrogen receptor (ER) alpha proved to be the preferred predictor of progesterone receptor (PR) status, while methylation of the PGR gene, encoding PR, was the preferred predictor of ER status. ESR1 methylation outperformed hormone receptor status as a predictor of clinical response in patients treated with antiestroges (e.g., tamoxifen), while promoter methylation of the CYP1B1 gene, encoding a tamoxifen and estradiol metabolizing cytochrome P450, predicted response differentially in tamoxifen-treated and non-treated patients. High levels of promoter methylation of the ARHI gene, encoding a RAS-related small G-protein, were shown to be preferred predictors of better survival in patients who had not received tamoxifen therapy.
    • 具体实施方案提供了激素受体状态的新型和临床有用的DNA甲基化预测因子,以及对内分泌(例如激素)和非内分泌乳腺癌治疗的预测因子。 编码雌激素受体(ER)α的ESR1基因被证明是孕酮受体(PR)状态的优选预测因子,而编码PR的PGR基因的甲基化是ER状态的优选预测因子。 ESR1甲基化表现优于激素受体状态,作为用抗静脉药物治疗的患者(如他莫昔芬)的临床反应预测因子,而CYP1B1基因的启动子甲基化,编码他莫昔芬和雌二醇代谢细胞色素P450,预测了他莫昔芬治疗和非 - 治疗患者。 编码RAS相关小G蛋白的ARHI基因的高水平启动子甲基化被证明是没有接受他莫昔芬治疗的患者更好的生存的优选预测因子。
    • 8. 发明申请
    • DNA METHYLATION MARKERS BASED ON EPIGENETIC STEM CELL SIGNATURES IN CANCER
    • 基于癌基因突变细胞标志物的DNA甲基化标记
    • US20100172880A1
    • 2010-07-08
    • US12520841
    • 2007-12-27
    • Peter W. LairdMartin Widschwendter
    • Peter W. LairdMartin Widschwendter
    • A61K35/12C12Q1/68A61P35/04
    • C12Q1/6886C12Q2600/106C12Q2600/118C12Q2600/154C12Q2600/158
    • In particular aspects, stem-cell polycomb group (PcG) targets are more likely to have cancer-specific promoter DNA methylation than non-targets, indicating a stem-cell origin of cancer, where reversible gene repression is replaced by permanent silencing, locking the cell into a perpetual state of self-renewal and predisposition to subsequent malignant transformation. Exemplary aspects provide methods for identifying preferred DNA methylation markers for a cellular proliferative disorder and/or cancer and markers for developmental lineages and/or stages, based on identifying PcG protein or PcG repressive complex genomic target loci within a precursor cell (e.g., stem or progenitor cell) population, and determining, in cells of the proliferative disorder and/or cancer or cell of the particular developmental lineages and/or stages, a characteristic methylation status of the PcG target loci. Additional aspects provide methods for validating and/or monitoring a precursor cell (e.g., stem cell) population. Diagnostic and prognostic methods for ovarian and breast cancer are provided.
    • 在特定方面,干细胞多梳组(PcG)靶标比非靶标更可能具有癌症特异性启动子DNA甲基化,表明癌症的干细胞来源,其中可逆基因抑制被永久性沉默替代,锁定 细胞进入自我更新的永久状态,并且随之而来的恶性转化。 基于识别前体细胞内的PcG蛋白或PcG抑制性复合基因组靶基因座(例如,茎或者其中),鉴定出用于细胞增殖性病症和/或癌症的优选DNA甲基化标记物和用于发育谱系和/或阶段的标志物的方法, 祖细胞)群体,并且在特定发育谱系和/或阶段的增殖性疾病和/或癌症或细胞的细胞中确定PcG靶基因座的特征性甲基化状态。 另外的方面提供了验证和/或监测前体细胞(例如干细胞)群体的方法。 提供卵巢癌和乳腺癌的诊断和预后方法。
    • 10. 发明授权
    • Association of the DNA methylation profile of the CYP1B1 gene with response to adjuvant therapy in breast cancer
    • CYP1B1基因DNA甲基化谱与乳腺癌辅助治疗反应的关系
    • US08367336B2
    • 2013-02-05
    • US11628390
    • 2005-06-01
    • Martin WidschwendterKimberly D. SiegmundPeter A. JonesPeter W. Laird
    • Martin WidschwendterKimberly D. SiegmundPeter A. JonesPeter W. Laird
    • C12Q1/68C12P19/34
    • C12Q1/6886C12Q2600/106C12Q2600/118C12Q2600/154
    • Particular embodiments provide novel and clinically useful DNA methylation predictors of hormone receptor status, and predictors of response to endocrine (e.g., hormonal) and non-endocrine breast cancer therapy. The ESR1 gene, encoding the estrogen receptor (ER) alpha proved to be the preferred predictor of progesterone receptor (PR) status, while methylation of the PGR gene, encoding PR, was the preferred predictor of ER status. ESR1 methylation outperformed hormone receptor status as a predictor of clinical response in patients treated with antiestroges (e.g., tamoxifen), while promoter methylation of the CYP1B1 gene, encoding a tamoxifen and estradiol metabolizing cytochrome P450, predicted response differentially in tamoxifen-treated and non-treated patients. High levels of promoter methylation of the ARH1 gene, encoding a RAS-related small G-protein, were shown to be preferred predictors of better survival in patients who had not received tamoxifen therapy.
    • 具体实施方案提供了激素受体状态的新型和临床有用的DNA甲基化预测因子,以及对内分泌(例如激素)和非内分泌乳腺癌治疗的预测因子。 编码雌激素受体(ER)α的ESR1基因被证明是孕酮受体(PR)状态的优选预测因子,而编码PR的PGR基因的甲基化是ER状态的优选预测因子。 ESR1甲基化优于激素受体状态,作为抗前列腺治疗患者临床反应的预测因子(如他莫昔芬),而CYP1B1基因的启动子甲基化,编码他莫昔芬和雌二醇代谢细胞色素P450,预测了他莫昔芬治疗和非 - 治疗患者。 编码RAS相关小G蛋白的ARH1基因的高水平启动子甲基化被证明是没有接受他莫昔芬治疗的患者更好的生存的优选预测因子。