HSP90AA1 and non-small cell lung carcinoma: Based on the previous studies that suggest the impact of the HSP system on CSC behavior 13, we assessed expression profiles of the HSP system components [HSPB1 (encodes Hsp27), DNAJB1 (encoding Hsp40), HSPD1 (encoding Hsp60), HSPA1A (encoding HSP70), and HSP90AA1 (encoding HSP90)] in NSCLC CSCs.