In another study, bLF has been shown to form a complex with immunoglobulin (CD79A) binding protein 1 (IGBP1), which interacted with the catalytic subunit of protein phosphatase 2A (PP2A) to inhibit its activity and promote apoptosis of PC-14 lung adenocarcinoma cells [198]. Here, IGBP1 is linked to lung adenocarcinoma.