Vival (OS) of esophageal cancer patients. Fig.2A: Presence of stromal thrombocytic clusters (STC) was Title Loaded From File associated with shorter DFS in all cases. At investigation of tumor types separately, STC was associated with shorter DFS in squamous cell cancer (SCC) (Fig. 2B) as well as in adenocarcinoma (AC) (Fig. 2C). Fig. 2D: Presence of vascular thrombocytic clusters (VTC) was associated with shorter DFS in SCC. Fig. 2E: Surprisingly, VTC was associated with significantly longer DFS in AC in multivariate analysis. Nevertheless, note that only relatively few events are seen in the VTC+ curve, and curves are crossing each other over, qualifying this finding. Fig. 2F: VTC was associated with shorter OS in SCC. doi:10.1371/journal.pone.0066941.gThrombocytes and Lymphatics in Esophageal CancerTable 2. Survival Analysis.Factor Overall survival All tumors STC VTC pT pN Grading R0-resection Patient age Tumor type* Adenocarcinomas STC VTC pT pN Grading R0-resection Patient age Squamous cell cancers STC VTC pT pN Grading R0-resection Patient age Disease free survival All tumors STC VTC pT pN Grading R0-resection Patient age Tumor type* Adenocarcinomas STC VTC pT pN Grading R0-resection Patient age Squamous cell cancer STC VTC pT pNP-value univariateP-value multivariateRelative risk95 CI0.186 0.34 ,0.001 ,0.001 0.016 0.001 0.129 0.0.866 0.767 ,0.001 ,0.001 0.294 0.232 0.189 0.??1.713 1.516 ???1.??1.332?.202 1.259?.826 ???1.023?.0.925 0.188 ,0.001 ,0.001 0.003 0.005 0.0.2 0.084 0.039 ,0.001 0.523 0.499 0.??1.467 1.64 ?????1.019?.112 1.266?.124 ???0.166 0.049 0.003 0.004 0.024 0.083 0.0.681 0.111 0.002 0.007 0.328 0.206 0.??1.867 1.498 ?????1.265?.754 1.117?.01 ???0.036 0.302 ,0.001 ,0.001 0.001 0.005 0.982 0.0.11 0.34 ,0.001 ,0.001 0.065 0.291 0.042 0.??1.73 1.524 ??0.983 1.??1.374?.177 1.283?.81 ??0.968?.999 1.109?.0.652 0.15 ,0.001 ,0.001 ,0.001 0.004 0.0.022 0.008 0.014 ,0.001 0.453 0.359 0.2.168 0.281 1.512 1.679 ??0.1.118?.204 0.111?.713 1.088?.1 1.325?.127 ??0.955?.0.037 0.025 0.001 0.0.669 0.401 ,0.001 0.??2.014 1.??1.378?.944 1.089?.Thrombocytes and Lymphatics in Esophageal CancerTable 2. Cont.Factor Grading R0-resection Patient ageP-value univariate 0.021 0.388 0.P-value multivariate 0.025 0.571 0.Relative risk 1.85 ??95 CI 1.078?.173 ??univariate survival analysis of patients age was 23148522 performed using univariate Cox regression. *AC was associated with significantly better prognosis in multivariate analysis than SCC. doi:10.1371/journal.pone.0066941.tsurgery) were used at these patients for analysis. STC were present in 82 samples (25.6 ; 36 AC, 46 SCC), VTC in 56 (17.5 , 22 AC, 34 SCC). Figure 1 gives samples of immunostaining. Generally, STC (p = 0.004, Chi Square test) and VTC (p = 0.002, Chi square test) were more common in SCC compared to AC. A significant association between the presence VTCs and STCs was seen at investigation of all cases and at investigation of AC and SCC separately (p,0.001, respectively, Chi square test). While no association of the presence of STC with tumor staging and histological grading was seen in all cases and AC, in SCC more advanced lymph node status was seen in tumors with STC (Title Loaded From File median of pN1 in both cases, p = 0.024, Mann Whitney test). The presence of VTC was associated with more advanced tumor stage in all cases (median of pT3 in both cases with a trend towards higher staging in patients with VTC, p = 0.036, Mann Whitney test), but this association was not seen when investigating AC and SCC separately. PBPC we.Vival (OS) of esophageal cancer patients. Fig.2A: Presence of stromal thrombocytic clusters (STC) was associated with shorter DFS in all cases. At investigation of tumor types separately, STC was associated with shorter DFS in squamous cell cancer (SCC) (Fig. 2B) as well as in adenocarcinoma (AC) (Fig. 2C). Fig. 2D: Presence of vascular thrombocytic clusters (VTC) was associated with shorter DFS in SCC. Fig. 2E: Surprisingly, VTC was associated with significantly longer DFS in AC in multivariate analysis. Nevertheless, note that only relatively few events are seen in the VTC+ curve, and curves are crossing each other over, qualifying this finding. Fig. 2F: VTC was associated with shorter OS in SCC. doi:10.1371/journal.pone.0066941.gThrombocytes and Lymphatics in Esophageal CancerTable 2. Survival Analysis.Factor Overall survival All tumors STC VTC pT pN Grading R0-resection Patient age Tumor type* Adenocarcinomas STC VTC pT pN Grading R0-resection Patient age Squamous cell cancers STC VTC pT pN Grading R0-resection Patient age Disease free survival All tumors STC VTC pT pN Grading R0-resection Patient age Tumor type* Adenocarcinomas STC VTC pT pN Grading R0-resection Patient age Squamous cell cancer STC VTC pT pNP-value univariateP-value multivariateRelative risk95 CI0.186 0.34 ,0.001 ,0.001 0.016 0.001 0.129 0.0.866 0.767 ,0.001 ,0.001 0.294 0.232 0.189 0.??1.713 1.516 ???1.??1.332?.202 1.259?.826 ???1.023?.0.925 0.188 ,0.001 ,0.001 0.003 0.005 0.0.2 0.084 0.039 ,0.001 0.523 0.499 0.??1.467 1.64 ?????1.019?.112 1.266?.124 ???0.166 0.049 0.003 0.004 0.024 0.083 0.0.681 0.111 0.002 0.007 0.328 0.206 0.??1.867 1.498 ?????1.265?.754 1.117?.01 ???0.036 0.302 ,0.001 ,0.001 0.001 0.005 0.982 0.0.11 0.34 ,0.001 ,0.001 0.065 0.291 0.042 0.??1.73 1.524 ??0.983 1.??1.374?.177 1.283?.81 ??0.968?.999 1.109?.0.652 0.15 ,0.001 ,0.001 ,0.001 0.004 0.0.022 0.008 0.014 ,0.001 0.453 0.359 0.2.168 0.281 1.512 1.679 ??0.1.118?.204 0.111?.713 1.088?.1 1.325?.127 ??0.955?.0.037 0.025 0.001 0.0.669 0.401 ,0.001 0.??2.014 1.??1.378?.944 1.089?.Thrombocytes and Lymphatics in Esophageal CancerTable 2. Cont.Factor Grading R0-resection Patient ageP-value univariate 0.021 0.388 0.P-value multivariate 0.025 0.571 0.Relative risk 1.85 ??95 CI 1.078?.173 ??univariate survival analysis of patients age was 23148522 performed using univariate Cox regression. *AC was associated with significantly better prognosis in multivariate analysis than SCC. doi:10.1371/journal.pone.0066941.tsurgery) were used at these patients for analysis. STC were present in 82 samples (25.6 ; 36 AC, 46 SCC), VTC in 56 (17.5 , 22 AC, 34 SCC). Figure 1 gives samples of immunostaining. Generally, STC (p = 0.004, Chi Square test) and VTC (p = 0.002, Chi square test) were more common in SCC compared to AC. A significant association between the presence VTCs and STCs was seen at investigation of all cases and at investigation of AC and SCC separately (p,0.001, respectively, Chi square test). While no association of the presence of STC with tumor staging and histological grading was seen in all cases and AC, in SCC more advanced lymph node status was seen in tumors with STC (median of pN1 in both cases, p = 0.024, Mann Whitney test). The presence of VTC was associated with more advanced tumor stage in all cases (median of pT3 in both cases with a trend towards higher staging in patients with VTC, p = 0.036, Mann Whitney test), but this association was not seen when investigating AC and SCC separately. PBPC we.
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