The present invention describes the identification of two cancer sub-groups based on their bioenergetics status: high mitochondrial respiration (OX+) and low mitochondrial respiration (OX-). Advantageously, it has been discovered that inhibition of the mitochondrial trifunctional protein (MTP) altered high mitochondrial respiration (OX+) tumor growth in vitro and in vivo.
Hence, the present invention relates to MTP inhibitor for use in the treatment of high mitochondrial respiration (OX+) cancers. It has also been established that high mitochondrial respiration (OX+) cancer cells use an energy source other than glucose such as fatty acids for their growth, survival and resistance to treatments or activation of metastatic processes. These cancers are hence high fatty-acid oxidation dependent (FAO+) cancers. The present invention thus also relates to MTP inhibitor or use in the treatment of high mitochondrial respiration (OX+) cancers and high fatty-acid oxidation (FAO+) cancers. It has also been determined that MTP expression in tumors allows determining the prognosis of a subject suffering from high mitochondrial respiration (OX+) cancers.
本发明描述了根据
生物能状态确定的两种癌症亚群:高线粒体呼吸(OX+)和低线粒体呼吸(OX-)。有利的是,已发现抑制线粒体三功能蛋白(
MTP)可改变高线粒体呼吸(OX+)肿瘤在体外和体内的生长。
因此,本发明涉及用于治疗高线粒体呼吸(OX+)癌症的
MTP
抑制剂。此外,已证实高线粒体呼吸(OX+)癌细胞使用
葡萄糖以外的能量来源,如
脂肪酸,以促进其生长、存活、抵抗治疗或激活转移过程。因此,这些癌症是高
脂肪酸氧化依赖性(FAO+)癌症。因此,本发明还涉及
MTP
抑制剂或用于治疗高线粒体呼吸(OX+)癌症和高
脂肪酸氧化(FAO+)癌症。此外,还确定了肿瘤中
MTP 的表达可用于确定高线粒体呼吸(OX+)癌症患者的预后。