目的探究驱动蛋白家族成员2A(kinesin super family protein 2A,KIF2A)过表达与食管鳞癌的增殖和预后的相关性。驱动蛋白家族成员2A是驱动蛋白-13超家族蛋白的一员,且KIF2A在许多肿瘤的发展中发挥着重要作用。然而,KIF2A在食道鳞状细胞...目的探究驱动蛋白家族成员2A(kinesin super family protein 2A,KIF2A)过表达与食管鳞癌的增殖和预后的相关性。驱动蛋白家族成员2A是驱动蛋白-13超家族蛋白的一员,且KIF2A在许多肿瘤的发展中发挥着重要作用。然而,KIF2A在食道鳞状细胞癌(esophageal cell squamous carcinoma,ESCC)中的作用仍不清楚。方法使用己方收集的样本通过免疫组化来研究对比KIF2A在ESCC和正常组织中的表达水平和预后情况。通过细胞实验和动物实验研究KIF2A在ESCC中的机制。结果免疫组化显示,KIF2A在ESCC组织中相对高表达,并与该病预后相关。集落形成实验、细胞增值实验与细胞毒性实验(CCK-8)和蛋白质印迹(western blotting)结果显示,KIF2A的敲低可以明显降低ESCC细胞的形成能力和增殖能力。动物实验结果表明,敲低KIF2A可以明显减少小鼠的肿瘤体积。结论KIF2A可以作为ESCC的预后因素之一,而敲低KIF2A可以分别抑制ESCC在体外和体内的增殖。KIF2A可以作为未来ESCC的潜在预后生物标志物和治疗靶点。展开更多
The organic carbon budget in shrimp polyculture ecosystems was studied with five experimental enclosures. The results showed that: (l ) the total Organic carbon income of the ecosystems varied from 4 847. 46 to 6 15...The organic carbon budget in shrimp polyculture ecosystems was studied with five experimental enclosures. The results showed that: (l ) the total Organic carbon income of the ecosystems varied from 4 847. 46 to 6 154. 67 g, averaged (5 646. 94 t 551.09) g, the average ratio among its components, i. e., (phytoplankton production ): (periphyte production ): (feed casted) was 0. 73: 0. 11: 0. 16; (2) the total output of organic carbon varied from 3 310. 28 to 3 974. 79 g, averaged (3 644. 21 281. 44) g, the average ratio among its components, i. e., (plankton community respiration): (periphyton respiration): (benthic community): (culture animal production): (culture animal respiration) was 0. 53: 0. 19: 0. 15: 0. 04:0. 09; (3) the organic carbon accumulation varied from 1 383. 45 to 2 707. 31 g, averaged (2 002. 73 546. 76) g, which was 26% --44 % of the total organic carbon income; the sequence of organic carbon accumulation in the ecosystems of different polyculture types was Y5 (Penaeus chinensis -- Argopecten irradians) > Y7 (P. chinensis -- Taiwan red tilapia) > Y4 (P. chinensis ) > T5 (P. chinensis -- Taiwan red tilapia -- Sinonovacula constricta ) > Y6 (P. chinensis S. constricta ); (4) the average conversion rate of organic carbon income to P. chinensis was (l. 77 0. 62) % (Y6>T5 > Y4 >YS > Y7), and that to total culture animals was (2. 18 0. 79) % (T5 >Y6 > Y5 > Y4 > Y7).展开更多
文摘目的探究驱动蛋白家族成员2A(kinesin super family protein 2A,KIF2A)过表达与食管鳞癌的增殖和预后的相关性。驱动蛋白家族成员2A是驱动蛋白-13超家族蛋白的一员,且KIF2A在许多肿瘤的发展中发挥着重要作用。然而,KIF2A在食道鳞状细胞癌(esophageal cell squamous carcinoma,ESCC)中的作用仍不清楚。方法使用己方收集的样本通过免疫组化来研究对比KIF2A在ESCC和正常组织中的表达水平和预后情况。通过细胞实验和动物实验研究KIF2A在ESCC中的机制。结果免疫组化显示,KIF2A在ESCC组织中相对高表达,并与该病预后相关。集落形成实验、细胞增值实验与细胞毒性实验(CCK-8)和蛋白质印迹(western blotting)结果显示,KIF2A的敲低可以明显降低ESCC细胞的形成能力和增殖能力。动物实验结果表明,敲低KIF2A可以明显减少小鼠的肿瘤体积。结论KIF2A可以作为ESCC的预后因素之一,而敲低KIF2A可以分别抑制ESCC在体外和体内的增殖。KIF2A可以作为未来ESCC的潜在预后生物标志物和治疗靶点。
基金the National Natural Science Foundation of China under contract! No. 39430150 National Scaling He
文摘The organic carbon budget in shrimp polyculture ecosystems was studied with five experimental enclosures. The results showed that: (l ) the total Organic carbon income of the ecosystems varied from 4 847. 46 to 6 154. 67 g, averaged (5 646. 94 t 551.09) g, the average ratio among its components, i. e., (phytoplankton production ): (periphyte production ): (feed casted) was 0. 73: 0. 11: 0. 16; (2) the total output of organic carbon varied from 3 310. 28 to 3 974. 79 g, averaged (3 644. 21 281. 44) g, the average ratio among its components, i. e., (plankton community respiration): (periphyton respiration): (benthic community): (culture animal production): (culture animal respiration) was 0. 53: 0. 19: 0. 15: 0. 04:0. 09; (3) the organic carbon accumulation varied from 1 383. 45 to 2 707. 31 g, averaged (2 002. 73 546. 76) g, which was 26% --44 % of the total organic carbon income; the sequence of organic carbon accumulation in the ecosystems of different polyculture types was Y5 (Penaeus chinensis -- Argopecten irradians) > Y7 (P. chinensis -- Taiwan red tilapia) > Y4 (P. chinensis ) > T5 (P. chinensis -- Taiwan red tilapia -- Sinonovacula constricta ) > Y6 (P. chinensis S. constricta ); (4) the average conversion rate of organic carbon income to P. chinensis was (l. 77 0. 62) % (Y6>T5 > Y4 >YS > Y7), and that to total culture animals was (2. 18 0. 79) % (T5 >Y6 > Y5 > Y4 > Y7).