????????????( clonal proliferation) - PowerPoint PPT Presentation

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????????????( clonal proliferation)

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( clonal proliferation) – PowerPoint PPT presentation

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Title: ????????????( clonal proliferation)


1
??? ???????
  • ????????????( clonal proliferation)
  • ??????????????????
  • ?????????????????
  • ???????,??????????????,??????????
  • ?????????????????????

2
(No Transcript)
3
  • ???????
  • ??????(cycIin)?????????????? (cyclin-dependent
    kinase, CDK)????
  • ???????????? CDKs?cyclins ???????
  • CDK?????cyclin-CDK???(CKIs)???????????

4
  • ??????

5
  • ????(oncogene)
  • 1911?Rous????????????????,??????
  • ???????????????????(v-onc)
  • ????????,????????? (e-onc)
  • ???????????????????
  • ? ???,???????????,?????????????????(?)???(
    proto-oncogene)

6
  • ?(?)???
  • ?????????????????????
  • ????
  • ?????sis????????????-?????????????
  • ??????????
  • ??????????( epidermal growth factor receptor,
    EGFR)
  • ??????1??(CSF1R)????, CSF1R?? ?????????????????

7
  • ?????????( Intracellular signal transduction
    systems)
  • RAS?????????G-protein???,???????Gprotein?????????
    ?
  • ???-?????( protein tyrosine kinase)
    ABL????????????????????
  • ??????
  • MYC?DNA????,?JUN?????
  • ?????????
  • ?????????????????,

8
(No Transcript)
9
  • ??????
  • ?????????????????
  • HIV ???????????????????,??????????????????????????
    ????
  • ??????????????
  • ???????????????????
  • ??????????????,????????????????? ?
  • ????????????????????,?????????

10
(No Transcript)
11
(No Transcript)
12
  • ??????( tumor suppressor gene)
  • ?????,??????????????( dominant effect)
  • ???oncogene?????,?tumor suppressor gene
  • ???????????? ??????????????
  • ??????????? ( recessive)
  • RB??
  • ???????( retinoblastoma, RB) ,????????????
  • ????????????,?????????
  • ?1/3?RB?????????,?????????,????????????????,??????
    ?

13
  • RB?????
  • ?????pRb?????????
  • pRb ?????????????
  • pRb???GI??????????????,???pRb????????????,??RB????
  • ?????( G0IG I) , pRb?????
  • Gl???,????????????
  • ?????pRb???S??????????????????

14
(No Transcript)
15
  • p53??
  • ?????????,?????17p , p53?????(53 kD)
  • ?????????70??? p53??
  • 50????40?????p53??????
  • ???????????p53?????????
  • ????????????
  • ??alleles?????
  • ??allele????????, ????????????????

16
  • ?????, p53?????
  • DNA???, p53?????,??
  • ??????????( apoptosis)
  • p53???p21?????????
  • p21??????CDK ?????
  • ???CDK2?CDK4?CDK6,????????
  • ??? ?S???,????????DNA
  • ???????S?,?????????DNA,?p53??????
  • ??????????????,p53????????( guardian of genome)

17
  • ????(apoptosis, programmed cell death)?????
  • ????????????????????, Apoptosis???????
    ?,?????????????
  • ????????????????????,????????
  • ???????
  • ?????????????????,?????????????? ?,????????????

18
  • ????????
  • ?????????????,??????????
  • ??????????????????????
  • ??DNA???????????,????????
  • ???????????,??????????????????,?????????

19
  • ?????????????????
  • ???????15????????
  • ced-3?ced-4????
  • ced-9?????ced-3?ced-4????? ???????
  • ???????
  • ced-3 vs ?????????( cysteine proteases) caspases
  • ced-9 vs Bcl-2????
  • ced-4 vs Apaf-l (HeLa??)

20
  • caspase?????,???????????? ??????
  • caspase???????????????
  • ?????????, caspase ?????????caspase?????
  • ???caspases????????????
  • ?????????actin?Gas2?Lamins
  • ??DNA???PARP?DNA-PK
  • ??????PKC-d?PITSLRE kinase
  • ????14???????caspases?????

21
  • ??caspases???? ?????????????,???
  • Initiator (upstream) caspases
  • Effector (downstream) caspases
  • ????????,??initiator caspases (???8?9?10 )???
  • ??effector caspases???
  • ???caspases-3?6?7,???????????????
  • ??cytochrome c ?Apaf-l?caspase-9???apoptosome???
  • ??caspase-9??caspase????

22
  • ???????????????,????????? ????????
  • ????????????????AIDS ??????????
  • ????( proto- oncogene)???????????apoptosis???
  • MYC?????????????????
  • MYC?MAX??????????????????,????????????
  • ????????,?p53?APC?PTEN??????? ?????????,?????????
    ???????????

23
(No Transcript)
24
  • ???????
  • ???????
  • ????????????????
  • ??????,???????????(??? ???????????)
  • ????????????????,???????????????
  • ??FISH?????????????
  • ????FISH (multifluor-FISH)
  • DNA?????
  • ??????
  • ?????

25
(No Transcript)
26
(No Transcript)
27
  • ??????????????????????,?????
  • ???????????
  • ????????????
  • ????
  • ???????
  • ???????????(????, angiogenesis)
  • ????????????

28
(No Transcript)
29
  • ??????MSI
  • ????STR???,??STR??????????,??????pattern
  • Microsatellite DNA markers???????????????????
  • Mao et al. (1996) ,??microsatellite
    analysis??????????,?95????
  • DNA???????( loss of heterozygosity?LOH)
  • ?????????-???DNA,???????(? SNP?STR?VNTR)
    ,?????????????,???????
  • ???????????????,????????????

30
(No Transcript)
31
  • DNA??????
  • ????????????CpG islands
  • ??????????????????
  • ???????, DNA????????????????????
  • ????????????CpG??????,?????????????

32
(No Transcript)
33
  • ?????
  • ?????????(Laser capture microdissection,LCM)
  • ??????????????????????(????? ???????????)
  • ??????????????????? ??
  • ????????????????????????????? ???
  • LCM??????????????????????????????????

34
  • 1996????NIH Liotta??????
  • ????????ethylene-vinyl acetate (EVA)?
  • ????????????
  • ??????????,?????,??
  • ????????????
  • ??LOH (Loss of heterozygosity )
  • ???????????????????????
  • ?????????????????
  • p53?APC?????LOH
  • ???????CE??

35
(No Transcript)
36
  • ??MSI (microstatellite instability )
  • ?????????( replication error) ,???????????????
  • ?????????????????????? DNA???
  • MSI?DNA??????????
  • DNA????????, LOH?promoter????,???????????????)

37
(No Transcript)
38
  • ???????(protein truncation test, PTT )
  • ???????????
  • ???????????????
  • ???????
  • ??????stop codon??????
  • ?????( frameshift mutation)
  • ??????????????????
  • ??????????????(????????????)????????

39
(No Transcript)
40
(No Transcript)
41
(No Transcript)
42
  • ??????
  • ??????????????? ?????????Ig?T?????????
  • ????????????????????
  • ???????????????????( 1987???????)
  • V?????5??????J???????? 3 ???
  • ??????????????V-D?D-J??????????,??PCR?????????????
    ??(smeared)
  • B?? ??????????????,????VDJ????,???????????

43
  • ??????????
  • ??p53?????17??????13?1?(17p13.1)?
  • ??? 20 kb ?11?exon?10?intron??,??393???
  • 90?????????????????58 exon?
  • ??????????273? 175?248?245?249?282????
  • ?p53??????, Affymetrix?? ?p53??exon
    58??????????????,????p53 GeneChip

44
  • ?????????????? (??)?????
  • ????????????????,???????????
  • ??????????????,??????????

45
  • ???????( minimal residual disease, MRD)
  • ??????????,??????????
  • ??? FISH???,????????????
  • ?????????PCR?????????????????? ???????
  • ?????????,????????????
  • ????????????????????,???real-time RTPCR?nested
    RT-PCR?????????????????

46
  • ?????????
  • ????????????
  • ?????????????
  • ????? PCR,??????????????????
  • ?????,???????????, non-coding RNA (?micro RNA)
    ???
  • ??RT-PCR?real-time qRFPCR, micro RNA array, exon
    array????????
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