Stem cell–like/tumor-initiating cell–like features of CTC in pancreatic cancer:
A, Circulating tumor cells from pancreatic cancer patients demonstrating (A) pan-cytokeratin–positive, ALDH-positive CTC (merge); (B) DAPI (blue); (C) aldehyde dehydrogenase (green); and (D) pan-cytokeratin (red).
B, Circulating tumor cells from pancreatic cancer patients demonstrating (A) pan-cytokeratin–positive, CD133-positive, CD44-positive CTC (merge); (B) DAPI (blue); (C) CD133 (green); (D) pan-cytokeratin (red); and (E) CD44 (pink).
C, Circulating tumor cells from pancreatic cancer patients demonstrating (A) pan-cytokeratin–positive, CD133-positive, CD44-negative CTC (merge); (B) DAPI (blue); (C) CD133 (green); (D) pan-cytokeratin (red); and (E) CD44 negativity (absence of pink).
Printed with permission.