Exploring Collateral Lethality for Development of Cancer Therapeutics

探索癌症治疗开发的附带致死率

基本信息

批准号：
9899100
负责人：
RONALD ANTHONY DEPINHO
金额：
$ 47.41万
依托单位：
UNIVERSITY OF TX MD ANDERSON CAN CTR
依托单位国家：
美国
项目类别：
财政年份：
2018
资助国家：
美国
起止时间：
2018-04-09 至 2023-03-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/9899100
关键词：
3-Dimensional Adenocarcinoma Cell Allosteric Site Animal Model Applications Grants Attention Biological Assay Branched-Chain Amino Acids CDKN2A gene CRISPR/Cas technology Cancer Etiology Carbonic Acid Cell Line Cell Proliferation Cells Cessation of life Clinical Clustered Regularly Interspaced Short Palindromic Repeats DNA Sequence Alteration Data Development Diagnostic Dimerization Disease Documentation Engineering Enzymes Event Extinction (Psychology)Financial compensation Generations Genes Genetic Genomics Goals Housekeeping Human Hypersensitivity Immunologic Markers In Vitro KRAS2 gene Knock-out MADH4 gene Maintenance Malignant Neoplasms Malignant neoplasm of lung Malignant neoplasm of pancreas Measures Metabolic Metabolic Marker Mitochondria Modeling Molecular Target Morphology Mutate Mutation Nature Neoplasm Metastasis Oncogenes Onset of illness Pancreatic Ductal Adenocarcinoma Patients Pharmaceutical Preparations Plasma Play Proteins Proteomics Role Route Site Structure System TP53 gene Therapeutic Therapeutic Agents Time Toxic effect Translating Treatment Efficacy Tumor Suppressor Genes Tumor Suppressor Proteins Validation amino acid metabolism base cancer cell design early detection biomarkers enzyme deficiency gain of function mutation genomic signature in silico in vivo inhibitor/antagonist innovation knock-down malic enzyme metabolomics molecular targeted therapies mutant new therapeutic target novel pancreatic cancer cells pre-clinical precision medicine prostate cancer model siRNA delivery small molecule inhibitor therapeutic target tool transcriptomics tumor tumor progression uptake virtual screening

项目摘要

Project Summary Pancreatic cancer remains the most lethal disease with no effective therapeutics. We have recently made conceptual advances in targeting signature genomic deletions, a hallmark of human cancers. We demonstrated earlier that passenger deletions could confer cancer cell specific vulnerabilities, which we termed “Collateral Lethality”. We deployed this concept in targeting the SMAD4 deletion, which occurs frequently in pancreatic cancer, and have identified malic enzyme (ME) 3 as a target for collateral lethality in SMAD4-deleted pancreatic tumor cells harboring adjacent deletion of malic enzyme 2. We unexpectedly discovered that mitochondrial malic enzymes are required for the uptake of branched chain amino acids (BCAAs) in pancreatic cancer, which has been implicated as a diagnostic plasma marker for early detection of pancreatic cancer. Our overall goals are: to validate ME3 as a therapeutic target for pancreatic cancer in vitro and in PDX models (Aim 1) and in vivo using chimeric PDAC model (Aim 2); and to identify useful therapeutic agents that specifically target ME2 deleted cells (Aim 3). Our goals align well with the NCI directive on “Scientific Framework for Pancreatic Ductal Adenocarcinoma.”

项目概要胰腺癌仍然是最致命的疾病，我们最近没有找到有效的治疗方法。针对特征基因组缺失（人类癌症的一个标志）的概念性进展。早些时候，乘客删除可能会赋予癌细胞特定的脆弱性，我们对此进行了研究我们将这一概念应用于针对发生的 SMAD4 缺失。经常出现在胰腺癌中，并已将苹果酸酶 (ME) 3 确定为间接致死的靶标 SMAD4 缺失的胰腺肿瘤细胞含有相邻的苹果酸酶 2 缺失。我们出乎意料地发现线粒体苹果酸酶是吸收支链氨基酸所必需的（支链氨基酸）在胰腺癌中的应用，它被认为是早期检测胰腺癌的诊断血浆标记物我们的总体目标是：验证 ME3 作为胰腺癌的体外治疗靶点。以及在 PDX 模型（目标 1）和体内使用嵌合 PDAC 模型（目标 2）并确定有用的治疗方法；专门针对 ME2 缺失细胞的药物（目标 3）。 “胰腺导管腺癌的科学框架。”