To examine whether paclitaxel and eribulin induce mitotic arrest in breast cancer cell lines, we selected typical subtypes of breast cancer cell lines, such as T47D (ER and PgR positive), SK-BR-3 (Her2 positive), and MDA-MB-231 (triple negative), and confirmed that both paclitaxel and eribulin induced mitotic arrest in all the breast cancer cell lines used, regardless of subtypes (Fig. 1B,C). Here, ERBB2 is linked to breast carcinoma.