Lipid metabolism: new twists to the Yin and Yang of PKM2 in cancer.
2021
While canonical and non-canonical functions of pyruvate kinase M2 (PKM2) are recognized to mediate often-opposing roles in cancer, its contribution to cellular and systemic fatty acid homeostasis remains poorly understood. A new study by Liu et al (2021) uncovers ER transmembrane protein TMEM33 as a novel target of PKM2, which is essential for regulation of cancer cell cholesterol metabolism. These findings highlight the diversity of tissue-specific functions of PKM2 and potential implications for cancer treatment.
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