Abstract:
:Hypoxic conditions are common in solid tumors and have a significant effect on tumor progression, therapeutic and prognosis. Long noncoding RNAs (lncRNAs) are longer than 200 nucleotides and cannot be translated into proteins, which play important roles in some diseases including cancer. Although previous analysis have showed that long intergenic non-coding RNA (lincRNA)-p21 is hypoxia-responsive and functions as a new regulator of cell cycle, apoptosis and warburg effect in cervical cancer, its biological roles in hypoxic hepatoma and glioma are unknown. In this work, we found that X-ray irradiation or hypoxia treatment elevated lincRNA-p21 expression in SMMC7721 hepatoma and U251MG glioma cells. Knockdown of lincRNA-p21 induced G2/M phase arrest, promoted apoptosis, decreased cell proliferation and motility, and reduced autophagy through HIF-1/Akt/mTOR/P70S6K pathway in hypoxic tumor cells. Our results delineated a novel mechanism of lincRNA-p21 in enhancing hypoxic tumor cell radiosensitivity, which might provide valuable targets for radiation therapy for solid tumors, such as hepatoma and glioma.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Shen Y,Liu Y,Sun T,Yang Wdoi
10.1016/j.yexcr.2017.06.016subject
Has Abstractpub_date
2017-09-15 00:00:00pages
188-198issue
2eissn
0014-4827issn
1090-2422pii
S0014-4827(17)30344-0journal_volume
358pub_type
杂志文章abstract::The role of the F-actin cytoskeleton in cell volume regulation was studied in Ehrlich ascites tumor cells, using a quantitative rhodamine-phalloidin assay, confocal laser scanning microscopy, and electronic cell sizing. A hypotonic challenge (160 mOsm) was associated with a decrease in cellular F-actin content at 1 an...
journal_title:Experimental cell research
pub_type: 杂志文章
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abstract::We have previously shown that following psoralen photoactivation (PUVA treatment) human dermal fibroblasts undergo long-term growth arrest as well as morphological and functional changes reminiscent of cellular senescence [ 1 ]. In the absence of molecular data on what constitutes normal senescence, it has been diffic...
journal_title:Experimental cell research
pub_type: 杂志文章
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abstract::32D cells grown for 1 year in interleukin-3 (IL-3) and granulocyte colony-stimulating factor (G-CSF) generated the 32D Ro cell line which retained the parental mast cell phenotype but lost ability to generate erythroid cells in response to erythropoietin (EPO). In order to clarify the mechanisms underlying such restri...
journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1996.0248
更新日期:1996-08-25 00:00:00
abstract::A popular criterion of cell-cell communication in tissue cultures is dye coupling: the ability of the injected fluorescent dye of low molecular weight to be transferred from one cell to another. We report about a new factor which induces cell-to-cell dye coupling in previously uncoupled epithelial sheets. Paradoxicall...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(88)90204-2
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1995.1362
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journal_title:Experimental cell research
pub_type: 杂志文章
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abstract::Procollagen I is a trimer consisting of two proalpha1(I) chains and one proalpha 2(I) chain. In certain cases of mild osteogenesis imperfecta, abnormal proalpha1(I) chains are degraded very soon after synthesis. As a consequence, the cells produce excess proalpha2(I) chains, which cannot form trimers and are not secre...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2004.01.029
更新日期:2004-06-10 00:00:00
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(92)90103-f
更新日期:1992-10-01 00:00:00
abstract::A novel fluorescence-based method was developed to measure HIV envelope glycoprotein (env)-CD4-mediated cell fusion. This method measures the spread of a fluorescent dye as the cytosolic compartments of adjacent cells become contiguous upon cell-to-cell fusion. Calcein-labeled CD4+ Sup-T1 cells were seeded onto a mono...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.3939
更新日期:1998-04-10 00:00:00
abstract::Balbiani ring granules in Chironomus salivary glands represent premessenger ribonucleoprotein (RNP) particles, each containing a 35- to 40-kb message for a secretory polypeptide. Their gross structure can be described as an RNP ribbon bent into a toroid. We now demonstrate that an unfolded, thin RNP fiber is observed ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(92)90437-d
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1994.1180
更新日期:1994-07-01 00:00:00
abstract::Embryonic stem (ES) cell lines have been derived from blastocysts of the inbred mouse strain C57BL/6. The highest frequencies of ES cell colonies were observed when blastocysts were explanted directly onto growth-arrested feeder layers of 5637 human bladder carcinoma cells in the presence of conditioned medium. One of...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(91)90430-3
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1999.4566
更新日期:1999-08-25 00:00:00
abstract::Although osteocalcin is the most abundant noncollagenous protein in bone, its role remains undefined. Recent studies have reported diametrically opposing responses in the vitamin D regulation of the mouse vs the human and rat osteocalcin genes. The aim of this study was to increase the understanding of these differenc...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.2000.4912
更新日期:2000-08-01 00:00:00
abstract::Cytoplasts derived from senescent and quiescent human diploid cells inhibit DNA synthesis initiation when fused with cells capable of proliferation. When the cytoplasts were subjected to a variety of conditions (trypsin and cycloheximide treatment and growth on fibronectin), this inhibitory activity was lost, suggesti...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(85)90177-6
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journal_title:Experimental cell research
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journal_title:Experimental cell research
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2004.07.010
更新日期:2004-10-15 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.06.024
更新日期:2005-10-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章,评审
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更新日期:2014-01-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2011.01.018
更新日期:2011-04-01 00:00:00
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journal_title:Experimental cell research
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journal_title:Experimental cell research
pub_type: 杂志文章
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更新日期:1998-11-25 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2008.10.026
更新日期:2009-05-15 00:00:00
abstract::In mammalian cells, it has been shown that adjacent multiple DNA replicons, termed a replicon cluster or a replicon domain, are replicated coordinately in a defined temporal order during the DNA synthetic (S) phase. However, no intranuclear structure of this replicon domain has been revealed in the nucleus labelled wi...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(86)90583-5
更新日期:1986-08-01 00:00:00