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Intertwined leukocyte balances in tumours and peripheral blood as robust predictors of right and left colorectal cancer survival

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World Journal of Gastrointestinal Oncology 2022年第1期14卷 295-318页

作者： Ramón Cantero-Cid Karla Marina Montalbán-Hernández Jenny Guevara Alejandro Pascual-Iglesias Elisa Pulido JoséCarlos Casalvilla Cristóbal Marcano Cristina Barragán Serrano Jaime Valentín Gloria Cristina Bonel-Pérez JoséAvendaño-Ortiz Verónica Terrón Roberto Lozano-Rodríguez Alejandro Martín-Quirós Elvira Marín Eva Pena Laura Guerra-Pastrián Eduardo López-Collazo Luis Augusto Aguirre Tumor Immunology Laboratory The Innate Immune Response GroupHospital La Paz Institute for Health Research(IdiPAZ)Madrid 28046Spain Digestive Surgery Service La Paz University HospitalMadrid 28046Spain Emergency Department and Emergent Pathology Research Group Hospital La Paz Institute for Health Research(IdiPAZ)Madrid 28046Spain Pathologic Anatomy Service Hospital La PazMadrid 28046Spain

BACKGROUND colorectal cancer(CRC)accounts for 9.4%of overall cancer deaths,ranking second after lung cancer.Despite the large number of factors tested to predict their outcome,most patients with similar variables show big differences in survival.Moreover,right-sided CRC(RCRC)and left-sided CRC(LCRC)patients exhibit large differences in outcome after surgical intervention as assessed by preoperative blood leukocyte status.We hypothesised that stronger indexes than circulating(blood)leukocyte ratios to predict RCRC and LCRC patient outcomes will result from combining both circulating and infiltrated(tumour/peritumour fixed tissues)concentrations of leukocytes.AIM To seek variables involving leukocyte balances in peripheral blood and tumour tissues and to predict the outcome of CRC patients.METHODS Sixty-five patients diagnosed with colon adenocarcinoma by the Digestive Surgery Service of the La Paz University Hospital(Madrid,Spain)were enrolled in this study:43 with RCRC and 22 with LCRC.Patients were followed-up from January 2017 to March 2021 to record overall survival(OS)and recurrence-free survival(RFS)after surgical interventions.Leukocyte concentrations in peripheral blood were determined by routine laboratory protocols.Paraffin-fixed samples of tumour and peritumoural tissues were assessed for leukocyte concentrations by immunohistochemical detection of CD4,CD8,and CD14 marker expression.Ratios of leukocyte concentration in blood and tissues were calculated and evaluated for their predictor values for OS and RFS with Spearman correlations and Cox univariate and multivariate proportional hazards regression,followed by the calculation of the receiver-operating characteristic and area under the curve(AUC)and the determination of Youden’s optimal cutoff values for those variables that significantly correlated with either RCRC or LCRC patient outcomes.RCRC patients from the cohort were randomly assigned to modelling and validation sets,and clinician-friendly nomograms were developed to predict OS and RFS from the

关键词： left colorectal cancer Leukocyte ratios Prognostic variables Recurrence-free survival Right colorectal cancer Overall survival

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