CD133 expression is correlated with lymph node metastasis and vascular endothelial growth factor-C expression in pancreatic cancer.
Although CD133 has been shown to be a marker for cancer stem cells in various tumours, its expression in pancreatic cancer has not yet been clinically reported. In this study, we investigated the relationship between CD133 expression and clinicopathological factors in pancreatic cancer. Pancreatic head carcinoma specimens from 80 patients who underwent surgical resection were immunohistochemically assessed for CD133, vascular endothelial growth factor (VEGF)-C, CXCR4, CD34, Ki-67, and cytokeratin (CK) expressions. Sixty percentage (48/80) of specimens were CD133-positive, with less than 15% cells per specimen expressing the marker. CD133-positive cells were found at the peripheral site of adenocarcinoma glandular structures and were negative for CK. There was a significant correlation between CD133 expression and clinicopathological factors, including histological type, lymphatic invasion, and lymph node metastasis (P=0.0215, 0.0023, and 0.0024, respectively). Vascular endothelial growth factor-C expression was also significantly correlated with CD133 expression (P=0.0002). Consequently, the 5-year survival rate of CD133-positive patients was significantly lower than that of CD133-negative patients (P=0.0002) and multivariate analysis revealed that CD133 expression was an independent prognostic factor (P=0.0103). These results suggest that CD133 expression in pancreatic cancer was significantly associated with lymphatic metastasis, VEGF-C expression, and prognosis.
Maeda
S
S
Department of Surgical Oncology and Digestive Surgery, Field of Oncology, Course of Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Science, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
Shinchi
H
H
Kurahara
H
H
Mataki
Y
Y
Maemura
K
K
Sato
M
M
Natsugoe
S
S
Aikou
T
T
Takao
S
S
D000071916:AC133 Antigen; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015703:Antigens, CD / Q000032:analysis*; D005260:Female; D006023:Glycoproteins / Q000032:analysis*; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000032:analysis; D019394:Ki-67 Antigen / Q000032:analysis; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000098:blood supply / Q000737:chemistry* / Q000401:mortality / Q000473:pathology*; D010455:Peptides / Q000032:analysis*; D011379:Prognosis; D019718:Receptors, CXCR4 / Q000032:analysis; D042582:Vascular Endothelial Growth Factor C / Q000032:analysis*
D000071916:AC133 Antigen; D015703:Antigens, CD; C527276:CXCR4 protein, human; D006023:Glycoproteins; D019394:Ki-67 Antigen; C000606023:PROM1 protein, human; D010455:Peptides; D019718:Receptors, CXCR4; D042582:Vascular Endothelial Growth Factor C; D007633:Keratins