Abstract：
BACKGROUND/AIM:Oxysterol plays important physiological roles in diverse biological processes including apoptosis. However, the mechanisms underlying oxysterol-induced apoptosis remain unknown. 25-hydroxycholesterol (25-HC) is an oxysterol synthesized by cholesterol 25-hydroxylase from cholesterol during sterol metabolism. The aim of present study was to investigate 25-HC-induced apoptosis and associated signalling pathways in FaDu cells, which is originated form human head and neck squamous cell carcinoma cells. MATERIALS AND METHODS:25-HC-induced apoptosis was investigated by cell cytotoxicity assay using MTT, cell viability assay using cell LIVE/DEAD cell viability assay, haematoxylin & eosin staining, nuclear staining, fluorescence-activated cell sorting, western blotting using specific antibodies associated with extrinsic and intrinsic apoptosis pathways, and caspase-3/-7 activity assay in FaDu cells. RESULTS:25-HC dose-dependently decreased the viability of FaDu cells and up-regulated apoptotic events, such as alteration in morphology, and nuclear condensation. Flow cytometric analysis showed an increase in apoptotic population upon 25-HC treatment, suggesting that 25-HC induces apoptosis in FaDu cells. Moreover, 25-HC-induced apoptosis in FaDu cells was dependent on the activation of caspases by Fas antigen ligand-triggered death receptor-mediated extrinsic pathway and mitochondria-dependent intrinsic pathway via mitogen activated protein kinases. CONCLUSION:Cholesterol-derived oxysterol, 25-HC has potential anti-cancer function in FaDu cells and may have potential properties for the discovery of anti-cancer agents.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
You JS,Lim H,Kim TH,Oh JS,Lee GJ,Seo YS,Kim DK,Yu SK,Kim HJ,Kim CS,Kim JSdoi
10.21873/anticanres.14009subject
Has Abstractpub_date
2020-02-01 00:00:00pages
779-788issue
2eissn
0250-7005issn
1791-7530pii
40/2/779journal_volume
40pub_type
杂志文章abstract：:Allelic loss at specific chromosomal loci was demonstrated in carcinoma of the cervix (CaCx) obtained from Hong Kong Chinese by restriction fragment length polymorphism analysis. Altogether 12 patients with CaCx, 7 with cervical intraepithelial neoplasia (CIN) and 7 with normal cervical tissues were studied. Polymorph...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-09-01 00:00:00
abstract：:Several signaling pathways have been recognized in normal c-kit-mediated signal transduction following stem cell factor (SCF) stimulation including Janus kinase (JAK)/signal transducer and activator of transcription (STAT), mitogen-activated protein kinase (MAPK) and phosphoinositol 3-kinase (PI-3 K) pathways. In gast...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：:Between 70 and 75% of ovarian carcinomas are not discovered until they have reached an advanced stage III or later. Efforts should therefore be concentrated on earlier diagnosis. Ovarian cancer is not an entirely silent disease. Today, it is known that there are key symptoms which, depending on their frequency and int...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND:Nucleotide-binding domain and leucine-rich repeat-containing family, pyrin domain-containing 7 (NLRP7) (pyrin-containing apoptotic protease activating factor-1-like protein 3; PYPAF3, NACHT domain-, leucine-rich repeat, and pyrin domain-containing 7; NALP7) has been thought to contribute to innate immunity a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-07-01 00:00:00
abstract：:Mdm2 (murine double minute 2) is an oncogene, first identified in BALB/c 3T3 cells. Over-expression and gene amplification of Mdm2 were found in a variety of human cancers. Recently, Mdm2 was found to be an E3 ubiquitin ligase that promotes degradation of p53, which contributes significantly to its oncogenic activity....
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：:A pilot study to evaluate the predictive value of Indium-111-labelled somatostatin analogue [DTPA-D-Phe1]-octreotide scintigraphy (OctreoScan111) in the Octreotide treatment of hormone-refractory prostatic adenocarcinoma was initiated. Ten patients were investigated with OctreoScan111 with regard to disease extension ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：PURPOSE:Bone metastases or local recurrences are widely viewed as poor prognostic signs for successful immunotherapy for metastatic renal cell carcinoma (RCC), and even partial remission is a rarity. We assessed the efficacy of the combination of radio and chemo-immunotherapy for bone metastases or local recurrences fo...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：1999-03-01 00:00:00
abstract：:When mouse resident peritoneal macrophages were cultured with PSK (Krestin), a protein-bound polysaccharide extracted from Coriolus versicolor, they became enlarged and elongated and expressed higher NBT-reducing activity. PSK stimulated the production of differentiation-inducing factor and cytotoxic factor by the mou...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-09-01 00:00:00
abstract：BACKGROUND:Mistletoe lectins (MLs) are the active components of aqueous mistletoe extracts widely used in complementary cancer therapy, however, it is not clear if they bind to carbohydrate residues only or whether they interact with proteins as well. Protein-protein interactions do not seem unlikely as MLs act at very...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
abstract：BACKGROUND:Cyclooxygenase-2 (Cox-2) is expressed by several types of epithelial malignancies, i.e., carcinomas, and inhibition of Cox-2 may have a therapeutic role in chemoprevention and treatment of cancer. The role of Cox-2 in non-epithelial malignancies, however, is unclear. MATERIALS AND METHODS:We investigated, b...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-07-01 00:00:00
abstract：BACKGROUND/AIM:Metastases involving the adrenal glands can be treated surgically or with radiation therapy. Retrospective studies indicate that radiotherapy for this indication is safe, well-tolerated and associated with symptom palliation and good local control. We conducted this analysis to report on patterns and out...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12788
更新日期：2018-08-01 00:00:00
abstract：BACKGROUND:Nogo-B was recently shown to be involved in proliferation, apoptosis and invasiveness of cancer cells, whereas its specific receptor (NgBR) was found to be up-regulated in estrogen receptor-α positive breast cancer. No data are currently available concerning their expression in non-small cell lung carcinomas...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：:NMR spectroscopy was used to analyse perchloric acid extracts of normal human brain, murine brain cell cultures, glioblastoma tissue and the glioblastoma cell line U-87. 1H NMR spectra revealed the presence of elevated levels of UDP-N-acetylglucosamine and UDP-N-acetylgalactosamine in glioblastoma extracts and the gli...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：BACKGROUND:Satraplatin (JM216; bis-acetatoammine-dichlorocyclohexylamine platinum (IV)) is a platinum (Pt) complex developed in an attempt to circumvent tumour resistance and which can be administered by the oral route. The fate of platinum delivered by this oral formulation administered at various doses under the 5 or...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Chemotherapy sensitivity of soft-tissue sarcomas (STS) is limited, which may be due to multidrug resistance (MDR). MDR is associated with expression of P-glycoprotein (P-gp), Multidrug Resistance-associated Protein 1 (MRP1) and Lung Resistance-related Protein (LRP). It is unknown whether in STS metastasis is...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:The mouse/human chimeric antibody Ch F11-39, recently generated by ourselves, shows the same high specificity and affinity for carcinoembryonic antigen (CEA) as those of its parental mouse monoclonal antibody. Ch F11-39 is capable of mediating antibody-dependent cell-mediated cytotoxicity (ADCC) with human peripheral ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND/AIM:A prospective study was designed to investigate the effects of anesthesia, particularly that of the one-lung ventilation procedure (OLV), on the expression of hypoxia-inducible factor 1alpha (HIF1alpha) in patients with lung carcinomas and pneumothorax. MATERIALS AND METHODS:The immunohistochemical expr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-04-01 00:00:00
abstract：BACKGROUND:Motility of cancer cells is a principal cellular parameter, essentially required in the invasion and formation of distant metastasis in human cancer. Measures to stimulate or inhibit motility of cancer cells may play an important part in the understanding of metastasis biology. The aim of this study was to d...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:We examined the expression of survivin using immunohistochemistry in 102 cases of laryngeal squamous cell carcinoma (LSCC). Overall, 65.7% (67 out of 102) of tumors were positive for survivin expression and significantly associated with tumor site, poor differentiation, tumor size, lymph node metastasis and advanced s...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：AIM:To evaluate the role of radiotherapy alone or combined with chemotherapy in the treatment of recurrent vulvar cancer, emphasising the prognostic factors and outcomes. MATERIALS AND METHODS:Twenty women with loco-regional recurrence of vulvar carcinoma were retrospectively reviewed. Eleven patients were managed wit...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Cyclooxygenases (COXs) and prostanoids play pivotal roles in colon carcinogenesis. This study was designed to determine the chemopreventive effects of ONO-8711, a selective prostaglandin E receptor EP1 antagonist, on the development of azoxymethane (AOM)-induced colonic aberrant crypt foci (ACF) in male F344...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:The purpose of the study was to test the feasibility of laser scanning cytometry (LSC) to simultaneously measure estrogen receptor (ER) and nucleolin (NU) expression in the nuclei of the same individual breast cancer cells. MATERIALS AND METHODS:Cancer cells from 64 breast tumors were labeled with anti-NU a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-03-01 00:00:00
abstract：:Alterations in histone acetylation status appear to play a central role in the regulation of neoplasia, tumor suppression, cell cycle control, hormone responsiveness and senescence. These alterations of chromatin control gene transcription. The histone acetylation status is regulated by the equilibrium of histone acet...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
abstract：BACKGROUND/AIM:Elderly patients represent an important subgroup of patients with brain metastases. A survival score has been developed specifically for these patients. PATIENTS AND METHODS:A total of 544 elderly patients (aged ≥65 years) receiving whole-brain radiotherapy alone were divided into a test (n=272) and a v...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-05-01 00:00:00
abstract：:Oral squamous cell carcinomas overexpress tumor-associated antigens, yet these antigens do not induce an immune-mediated anti-tumor response. The absence of an anti-tumor immune response may be due to poor immunogenicity of the tumor antigens or due to presence of factors that restrict immune functions. We have analyz...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND/AIM:Signaling regulation of myeloid zinc finger 1 (MZF1) has been implicated in the progression of many human malignancies; however, the mechanistic action of MZF1 in triple-negative breast cancer (TNBC) progression remains elusive. In this study, the aim was to investigate the molecular mechanisms of MZF1 a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13574
更新日期：2019-08-01 00:00:00
abstract：BACKGROUND:Primary prostate carcinoma cells constitutively secrete interleukin-6 (IL-6), and high levels of IL-6 receptor are detected in prostate carcinoma tissues. These findings have implicated IL-6 in the growth and differentiation of prostate carcinomas. Herein, we examined the regulation of IL-6 receptor complex ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:The sodium iodide symporter (NIS) is a plasma membrane protein that mediates active uptake of inorganic iodide from plasma into thyroid cells. Expression of the NIS gene in tumor cells may provide a novel mechanism for treating cancer. Previously, we cloned cDNA of rat NIS into the retroviral vector LXSN, transduced h...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：:A human ovarian mesodermal mixed heterologous carcinoma, with a high content of cellular retinol-binding protein (CRBP), was used to study the effects of retinoid and hormonal treatment on tumour CRBP content, tumour growth rate, differentiation and turnover of CRBP. Tumour growth in general was accompanied by an incr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:The aim of this study was to evaluate the possible role in and contribution of antioxidant enzymes to bladder cancer (BC) etiology and recurrence after transurethral resection (TUR). We enrolled 40 patients with BC who underwent TUR and 100 sex- and age-matched healthy controls. The analysis was performed at diagnosis...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11387
更新日期：2017-02-01 00:00:00
