RESUMEN
Cancer stem cells (CSCs) markers are specific molecules to identify CSCs.Recent findings demonstrate that CSCs markers associated with colorectal cancer mainly include CD133,CD29,CD166,CD44,Nanog,etc.These markers can take park in the initiation and progression of cancers by various molecular mechanisms,which have the potential to be used as therapeutic targets as well as prognostic indicators.
RESUMEN
As a member of T-box family,Tbx3 (T-box3) is widely expressed in multiple organs and involves in the development of breast,limb,heart,eye,lung and pancreas during embryonic development stage.Moreover,Tbx3 plays an important role in maintaining the embryonic stem cells.Recent studies show that Tbx3 can work as a transcription factor to participate in the initiation and progression of tumor by epithelialmesenchymal transition,induction tumor stemness and methylation.A better understanding of Tbx3 will provide new insights into genetic diagnosis and targeted treatment of tumor.
RESUMEN
Objective To detect the expressions of Y-box-binding protein-1(YB-1)and epithelial-mesenchymal transition(EMT)markers(E-cadherin and N-cadherin)in colorectal cancer(CRC),to analyze the relationship between the expression of YB-1 and clinicopathological parameters,to evaluate the correlations among YB-1,E-cadherin and N-cadherin. Methods The expressions of YB-1,E-cadherin and N-cadherin in 120 primary CRC tumors and corresponding normal tissues were detected by western blot and immunohistochem-istry and the results were analyzed. Results The expressions of YB-1,E-cadherin and N-cadherin in tumors were significantly different from those in corresponding normal tissues(χ2 = 47. 373,P ﹤ 0. 05;χ2 = 83. 145, P ﹤ 0. 05;χ2 = 41. 832,P ﹤ 0. 05). The expression of YB-1 in tumors was associated significantly with tumor differentiation,tumor invasion,lymph node metastasis and distance metastasis(χ2 = 8. 077,P = 0. 008;χ2 =8. 178,P = 0. 006;χ2 = 15. 152,P ﹤ 0. 001;χ2 = 7. 368,P = 0. 011). It was negatively correlated with E-cadherin expression(r = - 0. 238,P = 0. 009),but positively correlated with N-cadherin expression(r =0. 361,P ﹤ 0. 001). Conclusion YB-1 may promote the occurrence and development of CRC by participating in EMT program.
RESUMEN
As a crucial part of the DNA damage repair process,the expression of excision repair cross-complementing group 1 (ERCC1 )is closely related to the genesis and development of gastric cancer.Studies find that ERCC1 gene polymorphism can alter the expression of the gene itself,which affects the sensitivity and efficacy of platinum-based chemotherapy.Therefore,the detection of ERCC1 polymorphism may guide the indi-vidualized chemotherapy of the patients with gastric cancer.