To answer this question, we transduced 4T1 tumor cells with a puromycin selectable membrane-GFP lentiviral vector and a second blasticidin selectable lentivirus encoding for shRNA hairpin and expressing cytoplasmic mCherry to generate stably transduced nontargeting control and Angptl7 knockdown (KD) lines expressing both fluorescent reporters (Fig. 3A). The gene discussed is ANGPTL7; the disease is neoplasm.