Abstract:
:Hypoxia is a pathalogical condition in which tissues are deprived of adequate oxygen supply. The hypoxia effect on tumors has a critically important role on maintenance of cancer stem cell phenotype. The aim of this study is to investigate the effects of hypoxia on cancer stem cells on three dimensional (3D) in vitro culture models. Osteosarcoma stem cells characterized by CD133 surface protein were isolated from osteosarcoma cell line (SaOS-2) by magnetic-activated cell sorting (MACS) technique. Isolated CD133(+) and CD133(-) cells were cultivated under hypoxic (1% O2) and normoxic conditions (21% O2) for 3 days. For the 3D model, bacterial cellulose scaffold was used as the culture substrate. 3D morphologies of cells were examined by scanning electron microscopy (SEM); RT-PCR and immunocytochemistry staining were used to demonstrate conservation of the cancer stem cell phenotype in 3D environment under hypoxic conditions. Cell viability was shown by MTT assay on 3. and 7. culture days. This study is seen as an introduction to develop a 3D hypoxic cancer stem cell based tumor model to study CSC behavior and tumor genesis in vitro.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Gorgun C,Ozturk S,Gokalp S,Vatansever S,Gurhan SI,Urkmez ASdoi
10.1016/j.ijbiomac.2015.12.053subject
Has Abstractpub_date
2016-09-01 00:00:00pages
20-6eissn
0141-8130issn
1879-0003pii
S0141-8130(15)30240-3journal_volume
90pub_type
杂志文章abstract::Pumpkin polysaccharide was extracted by hot water extraction method. It was modified with chlorosulfonic acid-pyridine to obtain sulfated pumpkin polysaccharides (SP1, SP2) with different degrees of substitution, which was 0.35 and 0.65, respectively. The total sugar contents of pumpkin polysaccharide and its sulfated...
journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.05.167
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.10.035
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2016.10.055
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/0141-8130(94)90067-1
更新日期:1994-12-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2005.06.007
更新日期:2005-09-15 00:00:00
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.12.146
更新日期:2018-05-01 00:00:00
abstract::Cellulose synthase is the enzyme that produces cellulose in the living organisms like plant, and has two functions: polymerizing glucose residues (polymerization) and assembling these polymerized molecules into a crystalline microfibril with a "cellulose I" crystallographic structure (crystallization). Many studies, h...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.02.167
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2017.08.020
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abstract::Amino acids that carry charges on their side groups can bind to double stranded DNA (dsDNA) and change the strength of the double helix. Measurement of the DNA melting temperature (Tm) confirmed that acidic amino acids (Glu, Asp) weaken the H-bonds between DNA strands, whereas basic amino acids (Arg, Lys) strengthen t...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2015.03.054
更新日期:2015-01-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2013.09.026
更新日期:2013-11-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.08.119
更新日期:2018-12-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.05.064
更新日期:2020-09-15 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.09.102
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.04.003
更新日期:2010-07-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2010.07.007
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/s0141-8130(96)01140-3
更新日期:1997-02-01 00:00:00
abstract::The purpose of this study was to investigate the immune and antioxidant activities of Glycyrrhiza glabra polysaccharides (GGP) in rats fed high-fat diet. The experiment was performed on four groups of growing Kunming mice. The results of the experiment showed a statistically significant decrease in serum antioxidant e...
journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2009.04.001
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.10.135
更新日期:2019-01-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2020.01.056
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.09.143
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2019.03.225
更新日期:2019-07-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
doi:10.1016/j.ijbiomac.2018.02.035
更新日期:2018-06-01 00:00:00
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journal_title:International journal of biological macromolecules
pub_type: 杂志文章
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更新日期:2020-04-15 00:00:00