Department of Radiation Oncology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
Department of Radiation Oncology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
In Vivo. 2020 Jul-Aug;34(4):2119-2126. doi: 10.21873/invivo.12017.
BACKGROUND/AIM: This study aimed to analyze the correlation between microsatellite instability (MSI) and inflammatory markers during neoadjuvant CRT in rectal cancer and its influence on prognosis.
A total of 549 patients with locally advanced rectal cancer underwent neoadjuvant CRT. Complete blood counts before CRT, and 4-8 weeks after CRT were used to measure neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR).
MSI was significantly associated with elevated NLR and PLR after CRT as well as with a change in NLR and PLR during CRT. Neither inflammatory markers nor MSI significantly related to survival. However, in patients with MSI, an increase in NLR and PLR before CRT was significantly correlated with poor overall survival and disease-free survival.
There is correlation between inflammatory markers and MSI during CRT and it influences prognosis. Therefore, inflammatory markers might have a role in assessing the microenvironment related to MSI and the immunologic response in rectal cancer.
背景/目的:本研究旨在分析直肠癌新辅助 CRT 过程中微卫星不稳定性(MSI)与炎症标志物的相关性及其对预后的影响。
共有 549 例局部进展期直肠癌患者接受新辅助 CRT。在 CRT 前和 CRT 后 4-8 周,进行全血细胞计数以测量中性粒细胞与淋巴细胞比值(NLR)和血小板与淋巴细胞比值(PLR)。
MSI 与 CRT 后 NLR 和 PLR 升高以及 CRT 期间 NLR 和 PLR 的变化显著相关。炎症标志物和 MSI 均与生存无显著相关性。然而,在 MSI 患者中,CRT 前 NLR 和 PLR 的增加与总生存和无病生存不良显著相关。
在 CRT 过程中,炎症标志物与 MSI 之间存在相关性,并影响预后。因此,炎症标志物可能在评估与 MSI 相关的微环境和直肠癌的免疫反应方面具有一定作用。