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008 190401s2018 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.19.03.Ph.D.2018.Ma.T
100 0 _aMahitab Ibrahim Mohammed Altohamy
245 1 0 _aTopoisomerase ii Ü gene amplification as predictive factor for anthracycline based chemotherapy in triple negative breast cancer /
_cMahitab Ibrahim Mohammed Altohamy ; Supervised Mona Ali Abdelfattah Sakr , Iman loay Hussein , Hanan Ramadan Nassar
246 1 5 _aاختبار ايجابية جين توبوايزوميريز اثنان ألفا كعامل فى التنبؤ بالاستجابة للعلاج الكيميائى القائم على الانثراسيكلين فى حالات سرطان الثدى ثلاثى السلبية
260 _aCairo :
_bMahitab Ibrahim Mohammed Altohamy ,
_c2018
300 _a90 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - National Cancer Institute - Department of Clinical Pathology
520 _aBackground: Breast cancer is the most prevalent cancer and the leading cause of cancer death in female worldwide. TNBC forms 15% of breast cancer cases. It has a poor prognosis and lacks the responsiveness to hormonal and targeted therapies. Anthracyclines remain the most appropriate treatment for TNBC, but its cardiotoxicity necessitates selection of patients who will really benefit from it. From predictive factors of adjuvant anthracyclines sensitivity: Chromosome 17 CEP polysomy, TOP2A gene abnormality (deletion or amplification) and high Ki-67 proliferation index. Aim of work: To investigate TOP2A gene copy number and chromosome 17 CEP polysomy by FISH technique. Material aAnd methods: Immunohistochemistry for detection of Ki-67 LI and FISH technique for detection of TOP2A gene copy number and chromosome 17 CEP status, both were done on our study cases (50 cases) diagnosed at the pathology department, National cancer institute, Cairo-university. Results: CEP 17 polysomy showed a significant association with TOP2A abnormalities, and a trend towards better prognosis in patients with these abnormalities, So making studies on larger sample size may give significant association. Disease outcome, status of the disease (either locally advanced or advanced) and radiotherapy intake showed a significant association with overall survival. Disease free survival had a significant association between disease outcome and tumor grade
530 _aIssued also as CD
653 4 _aKi-67 LI
653 4 _aTNBC
653 4 _aTOP2A
700 0 _aHanan Ramadan Nassar ,
_eSupervisor
700 0 _aIman loay Hussein ,
_eSupervisor
700 0 _aMona Ali Abdelfattah Sakr ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c71128
_d71128