【正文】
DNA受損后的修復(fù)功能不完善,因此,腫瘤細(xì)胞對(duì)抗癌藥的細(xì)胞毒作用更為敏感,從而顯示出藥物的抗癌作用。體外實(shí)驗(yàn)證明紫杉醇具有顯著的放射增敏作用,可能是使細(xì)胞中止于對(duì)放療敏感的 G2和 M期。 mon mutations。 both conferred increased resistance to low concentrations of the drug [3]. ? The expression of all forms of mutant p53 protein except p53His273 enhanced sensitivity to cisplatin and doxorubicin [4]. ? R175H and R273H, exhibit significantly greater resistance to a number of antitumor drugs, including doxorubicin, cisplatin, etoposide, and 5FU [5]. ? Reconstitution of a mutant p53(R248W) in these cells inhibited the sensitivity to cisplatin treatment [6]. ? The transformant of R248Q mutation gained higher activity of invasion, while its anticancer drug sensitivity also increased [7]. ? R273H and R273C increase resistance to cisplatin treatment [8]. 3. 項(xiàng)目?jī)?nèi)容 26 Q : 廈門艾德的 TP53基因檢測(cè)試劑盒可以 6種突變( R175H, R175C, R248W, R248Q, R273H, R273C),為什么我們只檢測(cè) 5種突變,不檢測(cè) R175C突變點(diǎn)? A: R175C突變?yōu)榉菬狳c(diǎn)突變,其突變蛋白具有部分功能,且無(wú)文獻(xiàn)支持該突變點(diǎn)與藥物的相關(guān)作用關(guān)系。 9: 573–580 [3] Blandino G, Levine A J, Oren M. Mutant p53 gain of function: differential effects of different p53 mutants on resistance of cultured cells to chemotherapy[J]. Oncogene, 1999, 18(2): 477485. [4] CHANG F U L I N, LAI M D. Various forms of mutant p53 confer sensitivity to cisplatin and doxorubicin in bladder cancer cells[J]. The Journal of urology, 2023, 166(1): 304310. [5] MartinezRivera M, Siddik Z H. Resistance and gainofresistance phenotypes in cancers harboring wildtype p53[J]. Biochemical pharmacology, 2023, 83(8): 10491062. [6] Liu K, Ling S, Lin W C. TopBP1 mediates mutant p53 gain of function through NFY and p63/p73[J]. Molecular and cellular biology, 2023, 31(22): 44644481. [7]. Kamiya Y, Ohshima T. The individual cell properties of oral squamous cell carcinoma and p53 tumor suppressor gene mutation[J]. Oral Science International, 2023, 2(2): 104117. [8] Li J, Yang L, Gaur S, et al. Mutants TP53 p. R273H and p. R273C but not p. R273G Enhance Cancer Cell Malignancy[J]. Human mutation, 2023, 35(5): 575584. [9] Goh A M, Coffill C R, Lane D P. The role of mutant p53 in human cancer[J]. The Journal of pathology, 2023, 223(2): 116126. [10] Leroy B, Anderson M, Soussi T. TP53 mutations in human cancer: database reassessment and prospects for the next decade[J]. Human mutation, 2023, 35(6): 672688. [11] Ory K, Legros Y, Auguin C, et al. Analysis of the most representative tumourderived p53 mutants reveals that changes in protein conformation are not correlated with loss of transactivation or inhibition of cell proliferation[J]. The EMBO journal, 1994, 13(15): 3496. 3. 項(xiàng)目?jī)?nèi)容 引文 29 三 . 技術(shù)方法 30 PCR技術(shù) : castPCR? technology TaqMan174。 10% ? Fast, simple work?ow—like other TaqMan174。 mutation detection assay 75 TaqMan174。 , February 26, 2023 雨中黃葉樹(shù),燈下白頭人。 :00:0714:00Feb2326Feb23 1故人江海別,幾度隔山川。 :00:0714:00:07February 26, 2023 1他鄉(xiāng)生白發(fā),舊國(guó)見(jiàn)青山。 2023年 2月 下午 2時(shí) 0分 :00February 26, 2023 1行動(dòng)出成果,工作出財(cái)富。 下午 2時(shí) 0分 7秒 下午 2時(shí) 0分 14:00: 沒(méi)有失敗,只有暫時(shí)停止成功!。 14:00:0714:00:0714:002/26/2023 2:00:07 PM 1成功就是日復(fù)一日那一點(diǎn)點(diǎn)小小努力的積累。 14:00:0714:00:0714:00Sunday, February 26, 2023 1不知香積寺,數(shù)里入云峰。 2023年 2月 26日星期日 下午 2時(shí) 0分 7秒 14:00: 1楚塞三湘接,荊門九派通。 2023年 2月 26日星期日 2時(shí) 0分 7秒 14:00:0726 February 2023 1空山新雨后,天氣晚來(lái)秋。 , February 26, 2023 閱讀一切好書如同和過(guò)去最杰出的人談話。 :00:0714:00Feb2326Feb23 1越是無(wú)能的人,越喜歡挑剔別人的錯(cuò)兒。勝人者有力,自勝者強(qiáng)。 2023年 2月 26日星期日 下午 2時(shí) 0分 7秒 14:00: 1最具挑戰(zhàn)性的挑戰(zhàn)莫過(guò)于提升自我。 2023年 2月 26日星期日 2時(shí) 0分 7秒 14:00:0726 February 2023 1一個(gè)人即使已登上頂峰,也仍要自強(qiáng)不