ARID1A down‐regulation significantly up‐regulated RAB11 family interacting protein 1 (RAB11FIP1) mRNA in breast cancer cells.33 RAB11FIP1 is known as a Rab‐coupling protein that assists breast cancer progression.34 In the present study, ARID1A expression was up‐regulated in TNBCs compared to other subtypes derived from patients with breast cancer (Figure 3A‐D). The gene discussed is ARID1A; the disease is breast cancer.