DNAJB1 and breast cancer: Of the five genes examined, the relative expression of three of them, heat shock protein 40 (Hsp40) or (DNAJ), zinc family protein (ZnF), and glutathione-S-transferase (GST), demonstrated some significant changes in response to the treatments (Fig. 4). + BC(–HS) treatment had no effect on those genes when compared with–BC(–HS) treatment (Fig. 4).