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癌 细 胞,一肿瘤的概念,肿瘤是机体在各种致瘤因素作用下,局部组织的细胞异常增生而形成的新生物,常表现为局部肿块。,二肿瘤命名,根据肿瘤对人体的危害程度将其分成两大类: 良性肿瘤 恶性肿瘤。,恶性肿瘤,来源于上皮组织的恶性肿瘤叫“癌” 。,来源于结缔组织和肌肉的恶性肿瘤叫肉瘤。,癌症指的是所有的恶性肿瘤,包括癌与肉瘤等。,三癌细胞与癌细胞的特征,细胞内基因突变可能导致某些分化的细胞的生长与分裂,脱离了衰老与死亡的正常途径而成为生长不受控制的细胞叫癌细胞。,癌细胞与正常细胞的区别,正常细胞:不同类型的分化细胞具有相同的基因组。,癌细胞的细胞类型与特征相近,基因组却发生不同形式的突变,1癌细胞大小形态不一,通常比它的源细胞体积要大.,癌细胞的形态特征,2核形态不一,并可出现巨核、双核或多核现象,核质比显著高于正常细胞 。,3核内染色体呈非整倍态(aneuploidy),某些染色体缺失,而有些染色体数目增加。,http:/www.sdjk024.com/http:/www.sdjk024.com/yyjj/http:/www.sdjk024.com/yydt/http:/www.sdjk024.com/xjsb/http:/www.sdjk024.com/szqpz/http:/www.sdjk024.com/jrsyhttp:/www.sdjk024.com/lbhttp:/www.sdjk024.com/mdhttp:/www.sdjk024.com/fl/http:/www.sdjk024.com/ys/http:/www.sdjk024.com/rxg/http:/www.sdjk024.com/azb/http:/www.sdjk024.com/lylx/,4线粒体表现为不同的多型性、肿胀、增生。,5细胞骨架紊乱,某些成分减少,骨架组装不正常。,癌细胞生理特征,1细胞周期失控,能持续的分裂与增殖。,2具有迁移性,易于从肿瘤上脱落。,3接触抑制丧失,4对生长因子需要量降低。,5蛋白质合成及分解代谢都增强,但合成代谢超过分解代谢,甚至可夺取正常组织的蛋白质分解产物,结果可使机体处于严重消耗的恶病质状态。,http:/www.sdnk120.net/http:/www.sdnk120.net/bj/http:/www.sdnk120.net/bp/http:/www.sdnk120.net/bpgty/http:/www.sdnk120.net/bpss/http:/www.sdnk120.net/bqgnza/http:/www.sdnk120.net/cgal/http:/www.sdnk120.net/fgy/http:/www.sdnk120.net/gwy/http:/www.sdnk120.net/jdsb/http:/www.sdnk120.net/jkcs/http:/www.sdnk120.net/jny/http:/www.sdnk120.net/jsjmqz/http:/www.sdnk120.net/jxjzz/http:/www.sdnk120.net/jxqlxy/http:/www.sdnk120.net/lylx/http:/www.sdnk120.net/mngr/bgy/http:/www.sdnk120.net/mtbd/http:/www.sdnk120.net/mxqlxy/http:/www.sdnk120.net/ndy/http:/www.sdnk120.net/nkzj/http:/www.sdnk120.net/nxby/http:/www.sdnk120.net/nxby/gwyc/http:/www.sdnk120.net/nxby/jdyc/http:/www.sdnk120.net/nxby/jyyc/http:/www.sdnk120.net/nxby/nxbyz/http:/www.sdnk120.net/nxby/sijing/http:/www.sdnk120.net/nxby/sx/http:/www.sdnk120.net/nxby/wj/http:/www.sdnk120.net/nxby/zjwd/http:/www.sdnk120.net/qlxjb/http:/www.sdnk120.net/qlxjb/qlxgh/http:/www.sdnk120.net/qlxjb/qlxnz/http:/www.sdnk120.net/qlxjb/zjwd/http:/www.sdnk120.net/qlxt/http:/www.sdnk120.net/qlxzs/http:/www.sdnk120.net/radt/http:/www.sdnk120.net/rjz/http:/www.sdnk120.net/sdts/http:/www.sdnk120.net/sjyc/http:/www.sdnk120.net/sjz/http:/www.sdnk120.net/spzx/http:/www.sdnk120.net/szgrjb/http:/www.sdnk120.net/szgrjb/nlgr/http:/www.sdnk120.net/szgrjb/zjwd/http:/www.sdnk120.net/szzx/http:/www.sdnk120.net/szzx/jsjmqz/http:/www.sdnk120.net/szzx/qmjy/http:/www.sdnk120.net/szzx/sq/http:/www.sdnk120.net/szzx/ygz/http:/www.sdnk120.net/szzx/zjwd/http:/www.sdnk120.net/xbbk/fggryz/http:/www.sdnk120.net/xbbk/fljxndy/http:/www.sdnk120.net/xbbk/jrsy/http:/www.sdnk120.net/xbbk/lb/http:/www.sdnk120.net/xbbk/md/http:/www.sdnk120.net/xbbk/rxg/http:/www.sdnk120.net/xbbk/szqpz/http:/www.sdnk120.net/xbbk/zyt/http:/www.sdnk120.net/xbbk/zytyyt/http:/www.sdnk120.net/xcbjb/http:/www.sdnk120.net/xcbjb/ys/http:/www.sdnk120.net/xcbjb/zjwd/http:/www.sdnk120.net/xgnzajb/http:/www.sdnk120.net/xgnzajb/zjwd/http:/www.sdnk120.net/xgnzg/gdsy/http:/www.sdnk120.net/xydx/http:/www.sdnk120.net/yjyc/http:/www.sdnk120.net/yjzc/http:/www.sdnk120.net/yny/http:/www.sdnk120.net/yw/http:/www.sdnk120.net/yyhj/http:/www.sdnk120.net/yyjj/http:/www.sdnk120.net/yyry/http:/www.sdnk120.net/zhuantitupian/http:/www.sdnk120.net/zt/20150609/http:/www.sdnk120.net/zt/20150610/http:/www.sdnk120.net/zt/20150612/http:/www.sdnk120.net/zx/,http:/www.ljfk120.com/http:/www.ljfk120.com/byby/http:/www.ljfk120.com/byby/gjxby/http:/www.ljfk120.com/byby/lcxby/http:/www.ljfk120.com/byby/myxby/http:/www.ljfk120.com/byby/nfmby/http:/www.ljfk120.com/byby/pqxby/http:/www.ljfk120.com/byby/slgby/http:/www.ljfk120.com/byby/xgxlc/http:/www.ljfk120.com/byby/zgxby/http:/www.ljfk120.com/fkyz/http:/www.ljfk120.com/fkyz/bdyc/http:/www.ljfk120.com/fkyz/fjy/http:/www.ljfk120.com/fkyz/ndy/http:/www.ljfk120.com/fkyz/pqy/http:/www.ljfk120.com/fkyz/wybb/http:/www.ljfk120.com/fkyz/zgnmy/http:/www.ljfk120.com/fkzl/http:/www.ljfk120.com/fkzl/fjnz/http:/www.ljfk120.com/fkzl/lca/http:/www.ljfk120.com/fkzl/lcnz/http:/www.ljfk120.com/fkzl/zgjl/http:/www.ljfk120.com/fkzl/zgnma/http:/www.ljfk120.com/fkzl/zgnmywz/http:/www.ljfk120.com/fkzl/zgxjz/http:/www.ljfk120.com/fkzx/http:/www.ljfk120.com/fkzx/cnmxf/http:/www.ljfk120.com/fkzx/wyzx/http:/www.ljfk120.com/fkzx/yczx/http:/www.ljfk120.com/fkzx/ydjss/http:/www.ljfk120.com/fkzx/ydzxs/http:/www.ljfk120.com/fkzx/ydzzs/http:/www.ljfk120.com/fukejiancha/http:/www.ljfk120.com/fukejiancha/zaoyunjiancha/http:/www.ljfk120.com/fukeyiyuan/http:/www.ljfk120.com/gjjb/http:/www.ljfk120.com/gjjb/gja/http:/www.ljfk120.com/gjjb/gjbb/http:/www.ljfk120.com/gjjb/gjfd/http:/www.ljfk120.com/gjjb/gjml/http:/www.ljfk120.com/gjjb/gjnz/http:/www.ljfk120.com/gjjb/gjsj/http:/www.ljfk120.com/gjjb/gjxr/http:/www.ljfk120.com/gjjb/gjy/http:/www.ljfk120.com/gjjb/jianruishiyou/http:/www.ljfk120.com/gjjb/md/http:/www.ljfk120.com/gjjb/paozhen/http:/www.ljfk120.com/jhsy/http:/www.ljfk120.com/jhsy/bycs/http:/www.ljfk120.com/jhsy/gwy/http:/www.ljfk120.com/jhsy/jy/http:/www.ljfk120.com/jhsy/rlcs/http:/www.ljfk120.com/jhsy/shqh/http:/www.ljfk120.com/jhsy/wtrl/http:/www.ljfk120.com/jhsy/wtyc/http:/www.ljfk120.com/jhsy/ywlc/http:/www.ljfk120.com/nfm/http:/www.ljfk120.com/nfm/bj/http:/www.ljfk120.com/nfm/dnlc/http:/www.ljfk120.com/nfm/gnqzhz/http:/www.ljfk120.com/nfm/gx/http:/www.ljfk120.com/nfm/tj/http:/www.ljfk120.com/nfm/yjbt/http:/www.ljfk120.com/yyjj/http:/www.ljfk120.com/yyjj/bingli/http:/www.ljfk120.com/yyjj/gongyi/http:/www.ljfk120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