Overexpression of autophagy-related beclin-1 in cutaneous squamous cell carcinoma with lymph-node metastasis

2011 ◽  
Vol 21 (6) ◽  
pp. 1002-1003 ◽  
Author(s):  
Risa Okura ◽  
Motonobu Nakamura
2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
de Lima Vazquez Vinicius ◽  
Cristovam Scapulatempo ◽  
Natalia Martins Perpetuo ◽  
Faheez Mohamed ◽  
Teóclito Sachetto de Carvalho ◽  
...  

55 patients with advanced cutaneous squamous cell carcinoma (CSCC) of the trunk and extremities were studied.A Tissue Microarraywas constructed using immunohistochemistry to quantify expression of the HER family, E-cadherins, and podoplanin. Clinical and histopathological factors related to lymph node metastasis and prognosis were also established. Primary tumor positivity was 25.5% for EGFR, 87.3% for HER-3, and 48.1% for HER-4. Metastases were positive for EGFR in 41.7%, for HER-3 in 83.3%, and HER-4 in 43.5%. HER-2 was negative in all samples. Membrane E-cadherin and cytoplasmic E-cadherin were positive in 47.3% and 30.2% of primary tumors and 45.5% and 27.3% of metastases, respectively. Podoplanin was positive in 41.8% of primary tumors and 41.7% of metastases. Intratumoral lymphocytic infiltrate was associated with lymph node metastasis. Patients with T3 tumors had better cancer-specific survival (CSS) than those with T4 tumors; patients with no lymph node involvement had better CSS than patients with N1 tumors. Undifferentiated tumors and hyperexpression of podoplanin were negative prognostic indicators on multivariate analysis.


2020 ◽  
Vol 16 (2) ◽  
Author(s):  
Shiori Kamiya ◽  
Junji Kato ◽  
Takafumi Kamiya ◽  
Toshiharu Yamashita ◽  
Yasuyuki Sumikawa ◽  
...  

2021 ◽  
Vol 27 ◽  
Author(s):  
Hailei Du ◽  
Fangxiu Luo ◽  
Minmin Shi ◽  
Jiaming Che ◽  
Lianggang Zhu ◽  
...  

The effects of autophagy and apoptosis in the prognostic assessment and treatment of Esophageal squamous cell carcinoma (ESCC) remain to be elucidated. Here, we conducted a retrospective study on the histopathology of ESCC, investigated the expression of Beclin-1 and Bcl-2 proteins (both autophagy- and apoptosis-related) in esophageal cancer tissue, and analyzed the significance of these proteins for the prognosis of ESCC. In the present study, the expression level of Beclin-1 in ESCC was significantly lower than that in adjacent tissues (p < 0.01), whereas the expression level of Bcl-2 showed the opposite pattern (p < 0.01). Furthermore, low expression of Beclin-1 was associated with more advanced ESCC stages and lymph node metastasis. However, high expression of Bcl-2 was associated with more advanced ESCC stages, deeper tumor invasion, and lymph node metastasis. Moreover, the relationship between Bcl-2 expression and OS was not significant (p > 0.05), whereas Beclin-1 expression was significantly associated with OS (p < 0.05). Subgroup analysis showed that Beclin-1 expression was significantly associated with OS in the high-Bcl-2-expression group but not in the low-Bcl-2-expression group. Importantly, Beclin-1 upregulation or downregulation significantly upregulated or downregulated invasion, respectively, in EC9706 cells in combination with high expression but not low expression of Bcl-2. These findings reveal that differences in autophagy and apoptotic states and their activities may promote malignant tumor differentiation, which could lead to a more aggressive esophageal squamous cell phenotype and a worse survival prognosis. Here, Beclin-1 was shown to be a promising prognostic biomarker and therapeutic target for patients with ESCC in the high-Bcl-2-expression population.


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