FIGURE 6.
6-phosphogluconate dehydrogenase offers superiority for cisplatin resistance. Proposed working model.(A) In cisplatin-resistant cancer cells, miRNA-206 and miRNA-613 are commonly downregulated in cisplatin-resistant cells, leading to reduced expression levels of 6PGD. And reprogramming cell metabolism, including NADPH/NADP+ ratio, lactate production and intracellular ATP levels, to fulfill cancer cells resistant to cisplatin treatment. (B) Attenuation of 6PGD by miRNAs or small molecule inhibitor Physcion results in decreased 6PGD expression or enzyme activity, leading to cancer cell sensitive to cisplatin treatment.