HSPA1A and pancreatic ductal adenocarcinoma: In animals, malignant canine round cell tumors (Salvermoser et al. 2019), rodent squamous cell carcinoma of the head and neck, and ductal adenocarcinoma of the pancreas (Stangl et al. 2011a, b; Bayer et al. 2014) are associated with elevated circulating Hsp70 levels.