Abstract：
BACKGROUND:Intratumoural hypoxia is associated with chemoresistance in glioblastoma multiforme (GBM), a highly malignant brain tumour. Adaptive response to endoplasmic reticulum stress induced by temozolomide is a major obstacle in recurrent GBM. We investigated whether hyperoxia resensitizes temozolomide-resistant GBM cells to temozolomide by abrogating the hypoxia-induced, unfolded protein response (UPR)-related protective mechanisms. MATERIALS AND METHODS:We examined changes to key UPR modulators in temozolomide-sensitive and -resistant human GBM cells (D54 and U87) treated with/without temozolomide at different oxygen concentrations using western blotting, and cytotoxic benefits of overexpressing key chaperone, P4HB, in GBM cells (U87 and U251) under normoxia and hyperoxia. RESULTS:Hyperoxia, alone or synergistically with temozolomide, activated the UPR in sensitive and resistant D54 and U87 cell lines. Hyperoxia also reduced survival benefit of U87 and U251 cells with P4HB overexpression through the UPR. CONCLUSION:Hyperoxia enhanced GBM cell sensitivity to temozolomide, likely through UPR, highlighting an important treatment modality targeting chemosensitive and -resistant GBM.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Lee D,Sun S,Ho AS,Kiang KM,Zhang XQ,Xu FF,Leung GKsubject
Has Abstractpub_date
2014-06-01 00:00:00pages
2957-66issue
6eissn
0250-7005issn
1791-7530pii
34/6/2957journal_volume
34pub_type
杂志文章abstract：BACKGROUND/AIM:Only 0.1-0.17% of all lung cancer patients are diagnosed with stage I or II small cell lung cancer (SCLC). Radiochemotherapy remains the standard treatment for limited stage disease. This study focused on prognostic factors in early stage SCLC treated with radiochemotherapy. PATIENTS AND METHODS:Seven f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11482
更新日期：2017-03-01 00:00:00
abstract：:Nonterminal cellular differentiation has recently been shown to induce transformed cells to revert to a benign state and to become resistant to retransformation by chemical and physical carcinogens without limiting their proliferative potential. Nonterminal differentiation also induces native 3T3 T mesenchymal stem ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-09-01 00:00:00
abstract：BACKGROUND/AIM:To investigate whether surgical margin (SM) status would affect the biochemical recurrence (BCR) after robot-associated RP (RARP). PATIENTS AND METHODS:We evaluated BCR after RARP and the association between pre- and postoperative predictive factors and BCR. RESULTS:Positive SM (PSM) was observed in 97...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14802
更新日期：2021-01-01 00:00:00
abstract：BACKGROUND:Selective estrogen receptor modulators (SERMS) like Tamoxifen and Raloxifen are used for menopausal symptoms, prevention of cardio-vascular diseases, osteoporosis and mammary carcinoma. Tamoxifen acts as an estrogen inhibitor on the mammary gland, but stimulates postmenopausal uterine mucosa in about 25% of ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:In-111 pentetreotide is a new radiolabelled [OctreoScan 111, Mallinckrodt Medical BV, Petten] somatostatin analog with high affinity to somatostatin receptors (SR). introduced for the in vivo imaging of SR positive tissues. In an attempt to evaluate its clinical usefulness for tissue characterization in malignancies w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：BACKGROUND:Genetic alterations occurring in lung cancer are the basis for defining molecular subtypes and essential for targeted therapies. Exhaled breath condensate (EBC) is a form of non-invasive sample that, amongst components, contains DNA from pulmonary tissue. Next-generation sequencing (NGS) was herein used to a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12897
更新日期：2018-10-01 00:00:00
abstract：BACKGROUND/AIM:Leiomyosarcoma is an extremely rare, small bowel neoplasm (2% of all gastrointestinal tumours). Early diagnosis is challenging due to the slow growth of the cancer. The biological behaviour of this group of tumours is aggressive, and the first-line treatment is surgical resection. PATIENTS AND METHODS:T...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14420
更新日期：2020-07-01 00:00:00
abstract：BACKGROUND/AIM:Despite an expected prognostic disadvantage for upper tract versus lower tract metastatic urothelial carcinomas (UTUC/LTUC), only few studies have been conducted to elucidate potential differences in chemotherapy treatment. PATIENTS AND METHODS:A post-hoc subgroup analysis of a non-interventional study ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12098
更新日期：2017-11-01 00:00:00
abstract：:Xenograft hyperacute rejection in humans occurs as a secondary response to a cellular glycosylation incompatibility with most non-human mammalian species. A key component of hyperacute rejection, alpha(1,3)galactosyl (agal) epitopes present on the surface of most non-human mammal cells, is bound by host anti-agal IgG ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND:Malignant gliomas still present a medical challenge, despite decades of continuous extensive research with optimization of surgical techniques, radiotherapy and systemic treatments. PATIENTS AND METHODS:From 1999 to 2004, 104 patients with WHO grade III and IVgliomas underwent surgery and received concomita...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-11-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-08-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：BACKGROUND:Canine lymphoma has lately drawn focus as a model of human non-Hodgkin's lymphoma due to its spontaneous occurrence and similar biological behavior. Cells with stem cell-like characteristics are believed to play a key role in therapeutic failure. Thus, an initial characterization and the possibility of speci...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-05-01 00:00:00
abstract：:Some years ago we were able to confirm reports on the prognostic meaning of mitotic figure counting in breast cancer on a retrospective series of 104 breast cancer cases (Hum Pathol 26: 47-52, 1995). An independent influence of mitotic figure counting on prognosis could be proven in stage I and stage II tumors. Using ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：:A semiempirical molecular-orbital method (CAChe) was applied to delineate the relationship between the cytotoxicity (evaluated by 50% cytotoxic concentration, CC50) of fifteen phenoxazine derivatives and eleven physical parameters (descriptors). Most of the phenoxazine derivatives had extended and planar structure. Th...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-11-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND/AIM:The prognosis of pancreatic cancer has not improved due to its migratory feature and refractory potential to chemo-resistance with absence of effective diagnosis. Despite continuous efforts, its underlying mechanisms of malignant nature remain ambiguous. The objective of this study was to investigate del...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14075
更新日期：2020-03-01 00:00:00
abstract：:Metastatic pancreatic malignant melanoma is considered to be a highly aggressive neoplasm, and only few metastasectomies for lesions originating from the skin or the ocular region have been reported. We report a case of resection of pancreatic metastasis of malignant melanoma originating from the nasal cavity. An isol...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2013-02-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
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journal_title：Anticancer research
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doi：
更新日期：1988-03-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2013-09-01 00:00:00
abstract：:Moxa smoke induced internucleosomal DNA fragmentation in human promyelocytic leukemic HL-60 cells, but not in other cell lines. The cytotoxic activity of Moxa smoke was significantly reduced by a popular antioxidant, N-acetyl-L-cysteine (NAC). Moxa smoke showed oxidation potential (measured by NO monitor) and produced...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The influence of cytostatically active alkyllysophospholipid analogs with different chemical structure on IP3 (inositol-1,4,5-trisphosphate) formation and intracellular Ca++ concentration was studied in human mammary epithelial cells before and after transfection with v-erb B oncogene DNA. Transformed cells showed an ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-10-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11888
更新日期：2017-09-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-02-01 00:00:00
