Characterization of stem-like cells in a new astroblastoma cell line

Coban, E.A. | Kasikci, E. | Karatas, O.F. | Suakar, O. | Kuskucu, A. | Altunbek, M. | Bayrak, O.F.

Article | 2017 | Experimental Cell Research352 ( 2 ) , pp.393 - 402

Cell lines established from tumors are the most commonly used models in cancer research, and their use in recent years has enabled a greater understanding of the biology of cancer and the means to develop effective treatment strategies. Astroblastomas are uncommon neuroepithelial tumors of glial origin, predominantly affecting young people, mainly teenagers and children, predominantly females. To date, only a single study has reported that astroblastomas contain a large number of neural stem-like cells, which had only a partial proliferation capacity and differentiation. Our objective was to establish an astroblastoma cell line to i . . .nvestigate the presence of astroblastic cells and cancer stem-like cells. The migratory and invasion abilities of the cells were quantified with invasion and migration assays and compared to a glioblastoma cell line. The presence of stem cells was detected with surface-marker analysis by using flow cytometry, and measuring the differentiation ability with a differentiation assay and the self-renewal capacity with a sphere-forming assay. These characteristics may determine whether this novel cell line is a model for astroblastomas that may have stem-cell characteristics. With this novel cell line, scientists can investigate the molecular pathways underlying astroblastomas and develop new therapeutic strategies for patients with these tumors. © 2017 Elsevier Inc Daha fazlası Daha az

Cancer preventive effects of whole cell type immunization against mice ehrlich tumors

Aysan, E. | Bayrak, O.F. | Aydemir, E. | Telci, D. | Şahin, Fikrettin | Yardimci, C. | Muslumanoglu, M.

Article | 2013 | Asian Pacific Journal of Cancer Prevention14 ( 6 ) , pp.3515 - 3519

Background: Effects of whole cell type immunization on mice Ehrlich tumours were evaluated. Materials and Methods: After preliminary study, mice were divided two major groups; 1x1000 and 100x1000 live Ehrlich cell transferred major groups, each divided into four subgroups (n: 10). Study groups were immunized with Ehrlich cell lysates in 0, 3, 7, 14th days and after 30 days of last immunization, live Ehrlich cells were transferred. Mice were observed for six months and evaluated for total and cancer free days. Results: Out of 100x1000 cell transferred solid type study group, all study group mean and tumour free periods were statistic . . .ally longer than control groups. All 1x1000 Ehrlich cell transferred study groups survived significantly longer than 100x1000 Ehrlich cell transferred groups. Conclusions: Ehrlich mice tumours were prevented and survival prolonged with whole cell type immunization. Effects are related to the number of transferred tumor cells Daha fazlası Daha az

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