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ABSTRACT: Background
The aim of our study was to evaluate the prognostic role of immunological microenvironnement in stage II-III CRC patients.Methods
We constructed a tissue microarray from 196 consecutive patients with stage II-III CRC and compared CD3, CD4, CD8, CD57, CD68, CXCL9/MIG, CXCL13, and PPAR? immunoreactivity in tumour samples and their matched non-tumour tissue. We assessed their association with relapse-free survival (RFS; primary endpoint) and overall survival (OS) in multivariate Cox models.Results
Low densities of CD57+ and CD68+ tumour-infiltrating cells (TIC) independently predicted worse outcomes. A prognostic score combining CD57 (+, > vs -, ?2 cells per spot) and CD68 (+, >0 vs -, =0 cells per spot) TIC density discriminated CRC patients at low (CD68+/CD57+), intermediate (CD68+/CD57-), or high (CD68-/CD57-) risk, with hazard ratios for the intermediate-risk and high-risk groups of 2.7 (95% confidence interval (CI): 1.3-5.8) and 9.0 (3.2-25.4) for RFS, and 2.5 (1.2-5.1) and 10.6 (3.8-29.2) for OS, respectively, as compared with the low-risk group. Corresponding 5-year survival rates (95% CI) in the low-, moderate- and high-risk groups were 84% (71-91), 65% (54-74), and 12% (2-47), respectively, for RFS, and 91% (80-96), 76% (66-84), and 25% (7-59), respectively, for OS.Conclusion
Tumour CD57+ and CD68+ TIC density assessment independently predicts survival in patients with stage II-III CRC. If validated, our score based on a quick, inexpensive, and well-established method such as point counting on diagnostic tissue sections could be used routinely as a prognostic tool in CRC patients.
SUBMITTER: Chaput N
PROVIDER: S-EPMC3749560 | biostudies-literature | 2013 Aug
REPOSITORIES: biostudies-literature
Chaput N N Svrcek M M Aupérin A A Locher C C Drusch F F Malka D D Taïeb J J Goéré D D Ducreux M M Boige V V
British journal of cancer 20130718 4
<h4>Background</h4>The aim of our study was to evaluate the prognostic role of immunological microenvironnement in stage II-III CRC patients.<h4>Methods</h4>We constructed a tissue microarray from 196 consecutive patients with stage II-III CRC and compared CD3, CD4, CD8, CD57, CD68, CXCL9/MIG, CXCL13, and PPARγ immunoreactivity in tumour samples and their matched non-tumour tissue. We assessed their association with relapse-free survival (RFS; primary endpoint) and overall survival (OS) in multi ...[more]