Prognostic significance of spatial and density analysis of T lymphocytes in colorectal cancer.

Prognostic significance of spatial and density analysis of T lymphocytes in colorectal cancer.
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DOI:
10.1038/s41416-022-01822-6
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发表时间:
2022-08
影响因子:
8.8
通讯作者:
Väyrynen JP
Väyrynen JP
中科院分区:
医学1区
文献类型:
--
作者:
Elomaa H;Ahtiainen M;Väyrynen SA;Ogino S;Nowak JA;Friman M;Helminen O;Wirta EV;Seppälä TT;Böhm J;Mäkinen MJ;Mecklin JP;Kuopio T;Väyrynen JP

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Although high T cell density is a strong favourable prognostic factor in colorectal cancer, the significance of the spatial distribution of T cells is incompletely understood. We aimed to evaluate the prognostic significance of tumour cell-T cell co-localisation and T cell densities. We analysed CD3 and CD8 immunohistochemistry in a study cohort of 983 colorectal cancer patients and a validation cohort (N = 246). Individual immune and tumour cells were identified to calculate T cell densities (to derive T cell density score) and G-cross function values, estimating the likelihood of tumour cells being co-located with T cells within 20 µm radius (to derive T cell proximity score). High T cell proximity score associated with longer cancer-specific survival in both the study cohort [adjusted HR for high (vs. low) 0.33, 95% CI 0.20–0.52, Ptrend < 0.0001] and the validation cohort [adjusted HR for high (vs. low) 0.15, 95% CI 0.05–0.45, Ptrend < 0.0001] and its prognostic value was independent of T cell density score. The spatial point pattern analysis of tumour cell-T cell co-localisation could provide detailed information on colorectal cancer prognosis, supporting the value of spatial measurement of T cell infiltrates as a novel, robust tumour-immune biomarker.
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