HSPA1A and skin basal cell carcinoma: To determine whether HSPs are important for BCC cell growth, we used the HSP70 inhibitor Ver155008 on the vismodegib-resistant murine BCC cell line ASZ001 (12, 60) and observed decreased protein expression of Hsp70 and a dosage-dependent inhibition of ASZ001 cell proliferation (Fig. 6, C and D).