In order to investigate the inhibitory effect of matrine on the expression of prostate specific antigen （PSA） and androgen receptor （AR） in prostate cancer cell line LNCaP in vitro, LNCaP cells were treated with m...In order to investigate the inhibitory effect of matrine on the expression of prostate specific antigen （PSA） and androgen receptor （AR） in prostate cancer cell line LNCaP in vitro, LNCaP cells were treated with matrine at different concentrations （0.5, 1.0, 1.5, 2.0 g/L） for 12-36 h. The growth activities of cancer cells were determined by MTT colorimetric assay. The AR level was measured by Western blotting. The expression of PSA was detected by using AXSYM system-chemical luciferase methods. The results showed that matrine could effectively inhibit the growth of androgen-dependent prostate cancer cell line LNCaP in vitro in a time-and dose-dependent manner （P〈0.05）. It could obviously decrease the level of AR （P〈0.01） and inhibit the expression of PSA in a dose-dependent manner （P〈0.05） in LNCaP cells. It was concluded that matrine could significantly suppress the growth of LNCaP cells and inhibit the expression of PSA and AR of prostate cancer cells.展开更多
膀胱癌具有高复发率和易远处转移等特点,手术治疗联合化疗仅能有限延长部分患者的生存时间,且治疗过程中产生的耐药抵抗是肿瘤进展和复发的重要因素[1]。免疫检查点PD-1/PD-L1抗体的出现改变了肿瘤的常规治疗方式。2016年以来,5种不同...膀胱癌具有高复发率和易远处转移等特点,手术治疗联合化疗仅能有限延长部分患者的生存时间,且治疗过程中产生的耐药抵抗是肿瘤进展和复发的重要因素[1]。免疫检查点PD-1/PD-L1抗体的出现改变了肿瘤的常规治疗方式。2016年以来,5种不同的靶向PD-1(pembrolizumab、nivolumab)或PD-L1(atezolizumab、avelumab、durvalumab)的单抗被美国食品药品监督管理局(Food and Drug Administration,FDA)批准用于治疗晚期尿路上皮癌,其适用于无法手术和远处转移的肌层浸润性膀胱癌(muscle invasive bladder cancer cancer,MIBC)患者的二线治疗以及无法耐受铂类化疗且PD-L1阳性患者的一线治疗[2]。尽管针对膀胱尿路上皮癌患者肿瘤分子谱和免疫检查点阻断(immune checkpoint blockade,ICB)疗法的探索取得了实质性进展,但包括靶向PD-1/PD-L1在内的ICB疗法仅能使20%的患者获益[3]。展开更多
文摘In order to investigate the inhibitory effect of matrine on the expression of prostate specific antigen （PSA） and androgen receptor （AR） in prostate cancer cell line LNCaP in vitro, LNCaP cells were treated with matrine at different concentrations （0.5, 1.0, 1.5, 2.0 g/L） for 12-36 h. The growth activities of cancer cells were determined by MTT colorimetric assay. The AR level was measured by Western blotting. The expression of PSA was detected by using AXSYM system-chemical luciferase methods. The results showed that matrine could effectively inhibit the growth of androgen-dependent prostate cancer cell line LNCaP in vitro in a time-and dose-dependent manner （P〈0.05）. It could obviously decrease the level of AR （P〈0.01） and inhibit the expression of PSA in a dose-dependent manner （P〈0.05） in LNCaP cells. It was concluded that matrine could significantly suppress the growth of LNCaP cells and inhibit the expression of PSA and AR of prostate cancer cells.
文摘膀胱癌具有高复发率和易远处转移等特点,手术治疗联合化疗仅能有限延长部分患者的生存时间,且治疗过程中产生的耐药抵抗是肿瘤进展和复发的重要因素[1]。免疫检查点PD-1/PD-L1抗体的出现改变了肿瘤的常规治疗方式。2016年以来,5种不同的靶向PD-1(pembrolizumab、nivolumab)或PD-L1(atezolizumab、avelumab、durvalumab)的单抗被美国食品药品监督管理局(Food and Drug Administration,FDA)批准用于治疗晚期尿路上皮癌,其适用于无法手术和远处转移的肌层浸润性膀胱癌(muscle invasive bladder cancer cancer,MIBC)患者的二线治疗以及无法耐受铂类化疗且PD-L1阳性患者的一线治疗[2]。尽管针对膀胱尿路上皮癌患者肿瘤分子谱和免疫检查点阻断(immune checkpoint blockade,ICB)疗法的探索取得了实质性进展,但包括靶向PD-1/PD-L1在内的ICB疗法仅能使20%的患者获益[3]。
