In this study, Dimer-San A cyclodecapeptide was modified to constitute NOTA-Dimer-San A. PL45 pancreatic cancer cells were stained with an anti-Hsp90α antibody or Cy5 labeled biotin avidin system (BAS), and we observed abundant expression of Hsp90 and their co-localization (Fig. 2). This evidence concerns the gene HSP90AA1 and pancreatic neoplasm.