Xiao-Lin Guan

Malic enzyme 1 senses L-lactate to determine tumor heterogeneity

L-lactate is generally elevated in tumors and acts as a signaling molecule that promotes tumor progression. Here, we reveal that malic enzyme 1 (ME1) functions as a previously unrecognized sensor of L-lactate through direct binding at arginine 155 (R155), thereby potentiating malignancy. Mechanistically, L-lactate bind...