Levels of serum-soluble receptor for interleukin-2 in patients with colorectal cancer.
The preoperative levels of serum-soluble receptor for interleukin-2 (IL-2R) were determined by an enzyme-linked immunosorbent assay in 38 patients undergoing surgery for colorectal cancer and 98 healthy controls. The levels of serum-soluble IL-2R in the patients with colorectal cancer were significantly higher than those in the normal controls (P < 0.05). Markedly elevated levels of serum-soluble IL-2R were recognized in patients with stage IV cancer, those with Dukes' stage D cancer, and those with liver metastasis. Moreover, the prognosis of patients with low levels of IL-2R (<531 U/ml) was significantly better than that of those with high levels (P < 0.05). These findings demonstrate that an elevated concentration of soluble IL-2R might be a useful indicator of liver metastasis and poor prognosis in patients with colorectal carcinoma.
Saito
H
H
First Department of Surgery, Tottori University School of Medicine, Yonago, Japan.
Tsujitani
S
S
Katano
K
K
Ikeguchi
M
M
Maeta
M
M
Kaibara
N
N
D000230:Adenocarcinoma / Q000097:blood* / Q000556:secondary; D000368:Aged; D014408:Biomarkers, Tumor / Q000097:blood*; D015179:Colorectal Neoplasms / Q000097:blood* / Q000473:pathology / Q000601:surgery; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000097:blood / Q000556:secondary; D008297:Male; D011379:Prognosis; D015375:Receptors, Interleukin-2 / Q000097:blood*
D014408:Biomarkers, Tumor; D015375:Receptors, Interleukin-2