High-throughput functional analysis and clinical relevance of all possible variants of a gene

基因所有可能变异的高通量功能分析和临床相关性

基本信息

  • 批准号:
    10601908
  • 负责人:
  • 金额:
    $ 39.85万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-02-02 至 2025-01-31
  • 项目状态:
    未结题

项目摘要

Modern pharmaceuticals have greatly improved the quality of life for many patients suffering a variety of illnesses. Unfortunately, among the 17 most commonly prescribed drugs, only 6 are highly effective for most patients, 5 have a modest effect, and 6 show little clinical effect. Worse still, unwanted illness and death from treatment of patients with the incorrect drug or dosage causes over 275,000 unnecessary deaths annually in the United States, making it the 3rd-leading cause of death. Genomic screening can minimize the loss of lives by clearly defining the cause-and-effect between a patient’s genetic sequence and their disease. Many gene sequences are known to affect a person’s response to drugs. The FDA lists over 450 warnings or recommendations for drug use based on possible genetic variants in specific genes. Other public databases list ~60,000 “characterized” gene variants, but their importance is often unknown. Moreover, these variants represent a vanishingly small fraction of >900 million known human genetic variations. The vast number of “Variants of Uncertain Significance” (VUS) present potentially life-altering medical, ethical, legal, and societal complications. Some cause drugs to be more or less effective in different patients. Others can stimulate growth of cancer cells or make those cells resistant to chemotherapies. To understand the biological impact of gene variants, Heligenics has developed the GigaAssay™ technology to measure the functional effect of all variations within any selected gene. In contrast to similar technologies, the GigaAssay reports the activity of each variant of the gene, with high accuracy and reproducibility. In this proposal, we plan to improve the GigaAssay and show its feasibility for detection and analysis of gene variants that have clinical importance. In Aim 1 we will create a battery of GigaAssay cell lines and readouts for rapid analysis of several functional cellular activities. In Aim 2 we will demonstrate that the GigaAssay can detect gene variants that cause resistance to an FDA-approved chemotherapy drug. This work will directly address numerous goals of the “Illuminating the Druggable Genome” project of the NIH. Future plans include expanding the number of GigaAssays, increasing the speed or number of genes that can be studied, and partnering with drug developers and clinical trial managers to identify the optimal drug for each patient, based on his or her genetic variants.
现代药物极大地改善了许多患有各种疾病的患者的生活质量。 不幸的是,在17种最常用的处方药中,只有6种对大多数患者非常有效, 疗效中等,6例临床疗效不佳。更糟糕的是,不必要的疾病和死亡的治疗, 在美国,使用不正确药物或剂量的患者每年造成275,000多例不必要的死亡。 美国,使其成为第三大死亡原因。 基因组筛查可以通过清楚地定义患者的基因突变之间的因果关系, 基因序列和疾病已知许多基因序列会影响一个人对药物的反应。 FDA列出了超过450个警告或建议药物使用的基础上可能的遗传变异的具体 基因.其他公共数据库列出了约60,000个“特征化”基因变异,但它们的重要性往往是未知的。 此外,这些变异在超过9亿个已知的人类遗传变异中只占微不足道的一小部分。 大量的“不确定意义的变体”(VUS)可能会改变生命的医学,伦理, 法律的和社会的复杂性。有些药物对不同的患者或多或少有效。其他人可以 刺激癌细胞生长或使这些细胞对化疗产生抗性。 为了了解基因变异的生物学影响,Heligenics开发了GigaAssay™技术, 测量任何选定基因内所有变异的功能效应。与类似技术相比, GigaAssay报告基因的每个变体的活性,具有高准确性和可重复性。 在本提案中,我们计划改进GigaAssay,并展示其用于基因检测和分析的可行性。 具有临床重要性的变体。在目标1中,我们将创建一组GigaAssay细胞系和读数, 快速分析几种功能性细胞活动。在目标2中,我们将证明GigaAssay可以检测 导致对FDA批准的化疗药物产生耐药性的基因变异。 这项工作将直接解决美国国立卫生研究院“照亮可药用基因组”项目的许多目标。 未来的计划包括扩大GigaAssays的数量,增加基因的速度或数量, 研究,并与药物开发人员和临床试验管理人员合作,以确定每种药物的最佳药物 患者,根据他或她的遗传变异。

项目成果

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