RESUMO
PURPOSE: Based on a multi-centered and a large sample size, this study aims to analyze the relationship between preoperative and postoperative serum CEA and recurrence of rectal cancer without preoperative therapy. METHODS: This retrospective cohort study enrolled stage I to III rectal cancer patients without preoperative therapy (N = 1,022) who received radical resection of rectal cancer from 2 hospitals in China. Based on the preoperative and postoperative serum carcinoembryonic antigen, the patients were subdivided into 3 groups ie, normal preoperative CEA (≤5.0 ng/mL, N = 627), elevated preoperative (>5.0 ng/mL) but normalized postoperative CEA (normalized postoperative CEA, N = 255), as well as elevated preoperative and postoperative CEA (elevated postoperative CEA, N = 67). The generalized additive model was used to assess the relationship between carcinoembryonic antigen and the risk of recurrence. Further, the Cox regression model was used to evaluate the relationship between carcinoembryonic antigen and 3-year recurrence-free survival (RFS) after adjusting for potential confounders. RESULTS: The 3-year RFS of patients with elevated postoperative CEA was 45.8% (95% CI, 35.2% -59.5%), which was significantly lower compared to the other two groups of patients (normalized postoperative CEA: 75.9%, 95% CI, 70.8%-81.4%; and normal preoperative CEA: 84.9%, 95% CI, 82.2%-87.8%) (P <0.001). Based on multivariable Cox model analysis, the elevated postoperative CEA was a prognostic factor for 3 years RFS (hazard ratio [HR], 3.08; 95% CI, 2.05-4.66; P<0.001). At the same time, normalized postoperative CEA was insignificantly correlated with 3-year RFS (HR, 1.38; 95% CI, 1.00-1.92; P = 0.05) and was not an independent risk factor. CONCLUSION: We found that preoperative and postoperative serum CEA of rectal cancer patients were related to the 3-year recurrence-free survival rate. Moreover, the risk of recurrence in the normalized postoperative CEA group of patients was insignificantly different from that of the normalized preoperative CEA patients. Therefore, it is necessary to combine preoperative and postoperative CEA to predict the prognosis of patients with rectal cancer, rather than using it alone.
Assuntos
Antígeno Carcinoembrionário/sangue , Neoplasias Colorretais/sangue , Neoplasias Colorretais/cirurgia , Avaliação de Resultados da Assistência ao Paciente , Período Perioperatório , Idoso , Biomarcadores Tumorais/sangue , Estudos de Coortes , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos RetrospectivosRESUMO
Hepatocellular carcinoma (HCC) contributes to cancer-related deaths greatly every year in the world. However, there is still no radical method for HCC treatment. Here we screened out a lncRNA FABP5P3 that was up-regulated in HCC tissues. Patients with higher FABP5P3 expression displayed poorer survival rate. FABP5P3 depletion in HCC cell lines and sample cells remarkably inhibited the abilities of proliferation, migration and invasion. In mechanism, we showed that FABP5P3 bond to miR-589-5p which served as a tumor suppressor. MiR-589-5p targeted directly the mRNA of ZMYND19 whose function has not been defined in HCC. FABP5P3 promoted HCC development and progression by sponging miR-589-5p and up-regulating ZMYND19 expression. In sum, we showed that FABP5P3/miR-589-5p/ZMYND19 axis regulates cell proliferation and migration in HCC, which may serve as a new target for HCC treatment.
Assuntos
Carcinoma Hepatocelular/genética , Proteínas de Transporte/genética , Regulação Neoplásica da Expressão Gênica , Neoplasias Hepáticas/genética , MicroRNAs/genética , Invasividade Neoplásica/genética , RNA Longo não Codificante/genética , Animais , Carcinoma Hepatocelular/patologia , Linhagem Celular Tumoral , Movimento Celular , Proliferação de Células , Progressão da Doença , Humanos , Neoplasias Hepáticas/patologia , Camundongos Endogâmicos BALB C , Camundongos Nus , Invasividade Neoplásica/patologia , Transdução de SinaisRESUMO
Recently, increasing evidences demonstrate that circular RNAs (circRNAs) exert very important functions in the progression of human cancers. However, the functions and molecular mechanism of circ_0067934 in hepatocellular carcinoma (HCC) are largely unknown. In the present study, we found that the expression of circ_0067934 was significantly upregulated in HCC tissues and cell lines compared to adjacent normal tissues. Furthermore, we showed that circ_0067934 knockdown remarkably suppressed the proliferation, migration and invasion of Hep3B and HuH7 cells while inducing their apoptosis. In terms of mechanism, we found that circ_0067934 directly suppressed miR-1324, which targeted the 3'-UTR of FZD5 mRNA and subsequently downregulated the Wnt/ß-catenin signaling pathway in HCC. Through rescue experiments, we demonstrated that circ_0067934 enhanced the proliferation, migration and invasion of HCC cells by the inhibition of miR-1324 and concomitant activation of FZD5/Wnt/ß-catenin signaling pathway. In summary, the circ_0067934/miR-1324/FZD5/ß-catenin signaling axis might serve as a promising therapeutic target for HCC intervention.
