SLC1A3 and neoplasm: Recent studies have highlighted the importance of SLC1A3‐mediated aspartate uptake for cancer cell proliferation under hypoxia and crosstalk between cancer cells and cancer‐associated fibroblasts in the tumor niche (Alkan et al, 2018; Garcia‐Bermudez et al, 2018; Sullivan et al, 2018; Tajan et al, 2018; Bertero et al, 2019).