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008 160919s2016 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.11.03.Ph.D.2016.Sh.I
100 0 _aShaimaa Saad Eldin Mohammad
245 1 0 _aImpact of mesenchymal stem cells and vitamin d on transforming growth factor beta signaling pathway of hepatocellular carcinoma in rats /
_cShaimaa Saad Eldin Mohammad ; Supervised Hanan Hassan Fouad , Laila Ahmed Rashed , Soheir Mahfouz
246 1 5 _aتأثير الخلايا الجذعية وفيتامين د علي طريق إشارات معامل نمو التحول بيتا في جرذان التجارب البيضاء المصابة بسرطان الكبد
260 _aCairo :
_bShaimaa Saad Eldin Mohammad ,
_c2016
300 _a190 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Medical Biochemistry
520 _aBackground: Hepatocarcinogenesis is a complex and multi-step process resulting from a combination of epigenetic and genetic alterations. Transforming growth factor-beta (TGF-Ý) signaling pathway has been recognized as a key driver in cancer, where its activation affects cell proliferation, angiogenesis, invasion and metastasis. We evaluated the effect of mesenchymal stem cells (MSCs) and vitamin D on TGF-Ý signaling in hepatocellular carcinoma (HCC), in vivo, on hepatoma induced animal model in rats. Also we investigated the effect of MSCs and vitamin D, in vitro, on hepatoma cell line (HepG2 cells). Results: TGF-Ý level and the gene expression of TGF-Ý downstream target genes (Smad3 and snail), in addition to Smad2 protein level in rat liver tissues were downregulated in all treated groups with more suppressive effect in the group treated with both MSCs and vitamin D. Serum levels of AFP and ALT were significantly decreased in all treated groups. Also, all treated HepG2 cells showed a significant increase in Bax and significant decrease in Bcl-2 gene expression, in addition to significant decrease in HepG2 cell proliferation rate. Histopathological examination of liver tissue from induced HCC rats which received DENA-CCl4 only, revealed dysplastic cirrhotic nodules and solid areas of neoplasia. Administration of MSCs or vitamin D into induced HCC rats improved the histopathological picture with residual pathology, while administration of both MSCs and vitamin D showed restoration of liver parenchyma
530 _aIssued also as CD
653 4 _aHCC
653 4 _aMSCs
653 4 _aTGF-Ý signaling
700 0 _aHanan Hassan Fouad ,
_eSupervisor
700 0 _aLaila Ahmed Rashed ,
_eSupervisor
700 0 _aSoheir Mahfouz ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c57765
_d57765