Non-small cell lung cancer (NSCLC) is a malignant tumor with a high global incidence rate, accounting for about 10.54% of all new cancer cases and posing a serious threat to human health. Due to significant individual variations in the efficacy of immunotherapy among NSCLC patients, it is necessary to identify accurate detection indicators to screen appropriate populations, monitor treatment efficacy, and assist in prognosis assessment. Programmed death-ligand 1 (PD-L1), as an immunosuppressive molecule expressed on the surface of tumor cells and various immune cell membranes, can serve as a "companion diagnostic" or "supplementary diagnostic" tool to guide clinical treatment decisions for metastatic NSCLC patients. Given that tumor tissue PD-L1 testing is an invasive procedure and its reliability is still under debate, the assessment of PD-L1 expression via liquid biopsies, such as circulating tumor cells, will play a significant role in predicting treatment response and prognosis in NSCLC patients.

OBJECTIVETo investigate the predictive value of preoperative detection of CEA and CA199 for prognosis in patients with stage II-III colorectal cancer (CRC).

METHODSClinicopathological and follow-up data of 266 patients with stage II-III colorectal cancer confirmed by pathology and undergoing radical resection in our department from 2004 to 2006 were retrospectively analyzed. The 5-year overall survival (OS) and disease-free survival (DFS) between normal CEA patients and increased CEA ones, and normal CA199 patients and increased CA199 ones were compared respectively. Moreover, the risk factors of OS and DFS were examined.

RESULTSAmong these 266 patients, 119 (44.7%) had preoperative elevated CEA, and 74 (27.8%) had increased CA199. The median follow-up time was 63 months. Kaplan-Meier survival curves indicated that patients with elevated preoperative CEA had worse 5-year OS (54.6% vs. 72.8%, P=0.001) and DFS (75.2% vs. 83.3%, P=0.042) than those with normal CEA respectively. Meanwhile, patients with elevated CA199 had worse OS (45.9% vs. 71.9%, P=0.000) and DFS (74.2% vs. 81.8%, P=0.047) than those with normal CA199 respectively. Multivariate analysis revealed that male (HR=3.016, 95% CI: 1.536-5.919, P=0.001), lymph node metastasis (HR=2.278, 95% CI: 1.272-4.081, P=0.006), and preoperative elevated CEA (HR=1.794, 95%CI: 1.022-3.149, P=0.042) were independent prognostic factors of DFS. While vascular thrombosis (HR=2.041, 95% CI: 1.294-3.221, P=0.002), lymph node metastasis (HR=2.480, 95% CI:1.548-3.972, P=0.000), and preoperative elevated CA199 (HR=2.145, 95% CI:1.414-3.254, P=0.000) were independent prognostic factors of OS in patients with stage II-III CRC.

CONCLUSIONCombined detection of preoperative CEA and CA199 can be used in evaluating the prognosis of patients with stage II-III CRC.

Antigens, Tumor-Associated, Carbohydrate ; blood ; Carcinoembryonic Antigen ; blood ; Colorectal Neoplasms ; diagnosis ; Disease-Free Survival ; Female ; Humans ; Kaplan-Meier Estimate ; Lymphatic Metastasis ; Male ; Multivariate Analysis ; Neoplasm Staging ; Predictive Value of Tests ; Prognosis ; Retrospective Studies ; Risk Factors ; Survival Rate

Objective:To investigate whether increased levels of preoperative carcinoembryonic antigen (CEA) and CA199 were associated with the mortality of patients with advanced colorectal cancer and to determine whether CA199 can be used to discriminate patients with normal preoperative CEA level from good to poor prognosis. Methods:A total of 314 patients with advanced colorectal cancer cases who underwent primary tumor resection were collected from 2014 to 2016 at Peking University Cancer Hospital and Institute. Preoperative CEA and CA199 serum levels were examined using electrochemiluminescence immunoassay. The association of CEA and CA199 with clinicopathologic features and their possible prognostic values were analyzed. Results:In the tested patients, 5.4%of whom had increased CA199 level but not up-regulated CEA level, whereas 28.3%only had increased CEA level, and 21.3%had both CEA and CA199 levels increased. Kaplan-Meier survival curves indicated that patients with elevated preoperative CEA level had worse disease-free survival (DFS) and overall survival (OS) than those with normal CEA (P<0.001 and P<0.001, respectively). Meanwhile, patients with elevated CA199 level had worse DFS and OS than those with normal CA199 (P<0.001 and P<0.001, respectively). Preoperative CA199 level could be used in discriminating patients with normal CEA from good to poor prognosis (P=0.012). Multivariate analysis revealed that elevated CA199 level was an independent prognostic factor for OS in patients with advanced colorectal cancer (HR=2.025, 95%CI=1.331-3.082, P=0.001). Conclusion:Combined detection of preoperative CEA and CA199 can be used in evaluating the prognosis of patients with advanced colorectal cancer. Preoperative serum CA199 level can be used in evaluating the prognosis of patients with colorectal cancer without an increase in CEA level. Patients with increased CA199 level had worse 5-year survival than those with increased CEA level.

Objective To investigate the predictive value of preoperative detection of CEA and CA199 for prognosis in patients with stage Ⅱ-Ⅲ colorectal cancer (CRC). Methods Clinicopathological and follow-up data of 266 patients with stage Ⅱ-Ⅲ colorectal cancer confirmed by pathology and undergoing radical resection in our department from 2004 to 2006 were retrospectively analyzed. The 5-year overall survival(OS) and disease-free survival(DFS) between normal CEA patients and increased CEA ones, and normal CA199 patients and increased CA199 ones were compared respectively. Moreover, the risk factors of OS and DFS were examined. Results Among these 266 patients, 119 (44.7%) had preoperative elevated CEA, and 74 (27.8%) had increased CA199. The median follow-up time was 63 months. Kaplan-Meier survival curves indicated that patients with elevated preoperative CEA had worse 5-year overall survival (OS) (54.6% vs. 72.8%, P=0.001) and disease-free survival (DFS)(75.2% vs. 83.3%, P=0.042) than those with normal CEA respectively. Meanwhile, patients with elevated CA199 had worse OS(45.9% vs. 71.9%, P=0.000) and DFS (74.2% vs. 81.8%, P=0.047) than those with normal CA199 respectively. Multivariate analysis revealed that male (HR=3.016, 95% CI:1.536-5.919, P=0.001), lymph node metastasis (HR=2.278, 95% CI:1.272-4.081, P=0.006), and preoperative elevated CEA (HR =1.794, 95% CI:1.022-3.149, P =0.042) were independent prognostic factors of DFS. While vascular thrombosis (HR=2.041, 95% CI:1.294-3.221, P=0.002), lymph node metastasis (HR=2.480, 95% CI:1.548-3.972, P=0.000), and preoperative elevated CA199 (HR=2.145, 95% CI:1.414-3.254, P=0.000) were independent prognostic factors of OS in patients with stage Ⅱ-Ⅲ CRC. Conclusion Combined detection of preoperative CEA and CA199 can be used in evaluating the prognosis of patients with stage Ⅱ-Ⅲ CRC.

Objective To investigate the predictive value of preoperative detection of CEA and CA199 for prognosis in patients with stage Ⅱ-Ⅲ colorectal cancer (CRC). Methods Clinicopathological and follow-up data of 266 patients with stage Ⅱ-Ⅲ colorectal cancer confirmed by pathology and undergoing radical resection in our department from 2004 to 2006 were retrospectively analyzed. The 5-year overall survival(OS) and disease-free survival(DFS) between normal CEA patients and increased CEA ones, and normal CA199 patients and increased CA199 ones were compared respectively. Moreover, the risk factors of OS and DFS were examined. Results Among these 266 patients, 119 (44.7%) had preoperative elevated CEA, and 74 (27.8%) had increased CA199. The median follow-up time was 63 months. Kaplan-Meier survival curves indicated that patients with elevated preoperative CEA had worse 5-year overall survival (OS) (54.6% vs. 72.8%, P=0.001) and disease-free survival (DFS)(75.2% vs. 83.3%, P=0.042) than those with normal CEA respectively. Meanwhile, patients with elevated CA199 had worse OS(45.9% vs. 71.9%, P=0.000) and DFS (74.2% vs. 81.8%, P=0.047) than those with normal CA199 respectively. Multivariate analysis revealed that male (HR=3.016, 95% CI:1.536-5.919, P=0.001), lymph node metastasis (HR=2.278, 95% CI:1.272-4.081, P=0.006), and preoperative elevated CEA (HR =1.794, 95% CI:1.022-3.149, P =0.042) were independent prognostic factors of DFS. While vascular thrombosis (HR=2.041, 95% CI:1.294-3.221, P=0.002), lymph node metastasis (HR=2.480, 95% CI:1.548-3.972, P=0.000), and preoperative elevated CA199 (HR=2.145, 95% CI:1.414-3.254, P=0.000) were independent prognostic factors of OS in patients with stage Ⅱ-Ⅲ CRC. Conclusion Combined detection of preoperative CEA and CA199 can be used in evaluating the prognosis of patients with stage Ⅱ-Ⅲ CRC.

Objective To investigate the possibility of increasing R0 resection rate in esophageal carcinoma after neoadjuvant chemotherapy. Methods 30 patients underwent operation after neoadjuvant chemotherapy mainly by paclitaxel combined with cis-platinum, including 18 squamous carcinoma cases. 10 adenocarcinoma cases and 2 small cell carcinoma cases.Results In these 30 patients,the overall effective rate of neoadjuvant chemotherapy is 56.7%(17/30)(CR+PR),R0 resection rate is 100%,and the incidence rate of anastomotic leakage is 3.3%(1/30),without perioperative death.Conclusion The neoadjuvant chemotherapv is significant in improving the R0 resection rate in esophageal carcinoma,and the impact of long-term survival after surgery needs further follow-up.