Abstract:
:Peroxiredoxin 1 (Prx1) is important in the protection of cells from oxidative damage and the regulation of cell proliferation and apoptosis. Prx1 is overexpressed in oral precancerous lesions of oral leukoplakia (OLK) and oral cancer; however, the association between Prx1 expression and OLK pathogenesis remains unknown. The present study investigated the role of Prx1 and its molecular mechanisms in oxidative stress-induced apoptosis during the pathogenesis of OLK. Wild-type and Prx1 knockout mice were treated with 50 µg/ml 4-nitroquinoline-1-oxide (4NQO) or 4NQO + H2O2 for 16 weeks to establish mouse models with tongue precancerous lesions. Apoptotic cells were detected using terminal deoxynucleotidyl transferase dUTP nick-end labeling assay. The expression of Prx1, apoptosis signal-regulating kinase 1 (ASK1), phosphor-ASK1, p38 and phosphor-p38 was analyzed using immunohistochemical staining, and their mRNA expression levels were evaluated by reverse transcription quantitative polymerase chain reaction. The present results demonstrated that 4NQO or 4NQO + H2O2 induced the development of tongue precancerous lesions in Prx1 knockout and wild-type mice. Prx1 was overexpressed in tongue precancerous lesions compared with normal tongue mucosa. There was a significant decrease in the degree of moderate or severe epithelial dysplasia, and mild epithelial dysplasia was clearly elevated, in Prx1 knockout mice treated with 4NQO + H2O2 compared with wild-type mice treated with 4NQO + H2O2. Prx1 suppressed apoptosis and upregulated phosphor-ASK1 and phosphor-p38 expression in tongue precancerous lesions. The present results suggest that Prx1 suppresses oxidative stress-induced apoptosis via the ASK1/p38 signalling pathway in mouse tongue precancerous lesions. In conclusion, Prx1 and H2O2 have a coordination role in promoting the progression of tongue precancerous mucosa lesions. The present findings provide novel insight into Prx1 function and the mechanisms of Prx1 in OLK pathogenesis.
journal_name
Oncol Lettjournal_title
Oncology lettersauthors
Zhang J,Jing X,Niu W,Zhang M,Ge L,Miao C,Tang Xdoi
10.3892/ol.2016.4659subject
Has Abstractpub_date
2016-07-01 00:00:00pages
413-420issue
1eissn
1792-1074issn
1792-1082pii
OL-0-0-4659journal_volume
12pub_type
杂志文章相关文献
Oncology Letters文献大全abstract::Congenital leukemia is rare disease with an incidence of one to five cases per million births. Transient abnormal myelopoiesis (TAM), also called transient myeloproliferative disorder, is a pre-leukemia disorder that may occur in Down syndrome (DS) or non-DS infants. TAM may enter spontaneous remission; however, conti...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.5401
更新日期:2017-01-01 00:00:00
abstract::The aim of the present study was to compare intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) in irradiation of lung cancer. Plans of 14 patients were compared. The results demonstrated that in peripheral lung cancer, V5 (%) of the lung in partial-arc (PA)-VMAT was decreased comp...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.7732
更新日期:2018-03-01 00:00:00
abstract::Salivary gland carcinomas are rare tumors, representing ~0.5% of all malignancies. Myoepithelioma is also uncommon, representing ~1% of all salivary gland tumors. Myoepithelial carcinoma (MC) is even rarer, representing 0.2 to 0.6% of all salivary gland tumors. We herein report a case of MC with multiple metastases ar...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.5783
更新日期:2017-04-01 00:00:00
abstract::MicroRNA (miRNA or miR)-298 has been reported to be downregulated and to modify the expression of the polycomb protein enhancer of zeste 2 (EZH2) in recurrent epithelial ovarian cancer (EOC). To date, no functional evidence of a miR-298-EZH2 axis in EOC has been documented. The present study aimed to investigate the a...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.5204
更新日期:2016-11-01 00:00:00
abstract::As a rare hypopharyngeal diverticulum, Killian-Jamieson diverticulum (KJD) is usually incidentally detected, small, asymptomatic and likely to be misdiagnosed as a thyroid nodule. In order to avoid unnecessary treatments resulting from misdiagnosis, principles to distinguish between esophageal diverticula and thyroid ...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.4984
更新日期:2016-10-01 00:00:00
abstract::Portal vein tumor thrombus (PVTT) promotes distant metastasis of hepatocellular carcinoma (HCC), which increases the mortality of patients with HCC and PVTT. The aim of the present study was to develop an early risk warning system for distant metastasis of hepatitis B virus (HBV)-associated primary HCC (HBV-HCC) with ...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2020.11423
更新日期:2020-04-01 00:00:00
abstract::Plumbagin, a naphthoquinone constituent of Plumbago zeylanica L. (Plumbaginaceae) is widely used in traditional Chinese medicine as an antifungal, antibacterial and anti-inflammatory agent. Plumbagin is known to exhibit proapoptotic, antiangiogenic and antimetastatic effects in cancer cells. The transcriptional co-fac...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.4725
更新日期:2016-08-01 00:00:00
abstract::The value of interventional ultrasound in the diagnosis and treatment of submucous myoma of the uterus was assessed to study the ultrasonographic features of modified sonohysterography for submucous polyp of uterus. A total of 25 patients diagnosed preliminarily as submucous myoma of the uterus via conventional ultras...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.8122
更新日期:2018-05-01 00:00:00
abstract::Clear cell myoepithelial carcinoma is a very rare disease which develops primarily in the parotid gland. To date, only 17 cases of clear cell myoepithelial carcinoma have been reported worldwide. Among them, only three cases developed in the minor salivary gland in the oral cavity. No cases developed in the base of th...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2012.900
更新日期:2012-12-01 00:00:00
abstract::The expression of macrophage inhibitory cytokine-1 (MIC-1) of early gastric cancer treated using endoscopic mucosal resection (EMR) and its correlation with prognosis were investigated. One hundred and forty-seven patients with early gastric cancer (less than 20 mm in diameter) were recruited and assigned into an obse...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.6376
更新日期:2017-08-01 00:00:00
abstract::N-myc downstream-regulated gene 1 (NDRG1) is a multifunctional protein associated with carcinogenesis and tumor progression. The function of NDRG1 in hepatocellular carcinoma (HCC) cells remains controversial. The present study investigated the role of NDRG1 in HCC as well as its molecular mechanism using a range of t...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.5924
更新日期:2017-05-01 00:00:00
abstract::Lung cancer is one of the most common malignancies worldwide; however, its detailed molecular mechanism remains largely unknown. Long non-coding RNAs (lncRNAs) have been identified to serve critical roles in tumorigenesis. The aim of the present study was to investigate the role of a newly identified lncRNA, overexpre...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2019.10644
更新日期:2019-09-01 00:00:00
abstract::Glutathione S-transferases (GSTs) participate in the detoxification and elimination of electrophilic carcinogens by conjugating them to glutathione. Previous studies have reported a potential association between GSTM1 polymorphism and the risk of developing nasopharyngeal cancer (NPC). However, those findings remain c...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2015.3848
更新日期:2016-01-01 00:00:00
abstract::Platinum-compound chemotherapy is known to have ototoxic side-effects. However, there is a paucity of literature examining hearing function prospectively and longitudinally in cohorts containing paediatric and adult patients treated within the same cisplatin- or carboplatin-containing treatment trial protocols. In Ger...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2012.997
更新日期:2013-01-01 00:00:00
abstract::Central diabetes insipidus (DI) is a rare complication in patients with acute myeloid leukemia (AML), typically occurring in patients with abnormalities of chromosomes 3 or 7. The association between AML with monosomy 7 and DI has been described in a number of studies; however, DI has been rarely reported in cases of ...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2015.3139
更新日期:2015-06-01 00:00:00
abstract::The primary goal of radiotherapy in oncology is to enhance the efficacy of tumor cell death while decreasing damage to surrounding normal cells. Positive therapeutic outcomes may be accomplished by improved targeting, precisely targeting tumor cells or protecting normal cells against radiation-induced damage. The pote...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.6042
更新日期:2017-06-01 00:00:00
abstract::Liver X receptors (LXRs) are important members of the nuclear receptor family that were originally determined to function in cholesterol transport and the regulation of immune responses. Synthetic LXR ligands have been developed to treat various diseases including diabetes, Alzheimer's disease and atherosclerosis. Pre...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.7259
更新日期:2017-12-01 00:00:00
abstract::Adenocarcinoma is one of the most serious diseases that threaten human health. Numerous studies have investigated adenocarcinoma and have obtained a considerable amount of data regarding genes and microRNA (miRNA) in adenocarcinoma. However, studies have only focused on one or a small number of genes and miRNAs, and t...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2015.3676
更新日期:2015-11-01 00:00:00
abstract::Dendrobium candidum Wall ex Lindl. (D. candidum) is a traditional Chinese medicine widely used in Asia. The present study has showed that D. candidum exerted an anti-metastatic effect in mice injected with 26-M3.1 colon carcinoma cells. D. candidum showed the most marked tumor inhibitory rate of 64.5% at a dose of 400...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2014.2383
更新日期:2014-10-01 00:00:00
abstract::Spontaneous remission (SR) in acute lymphoblastic leukemia (ALL) is a rare phenomenon, but the disease course and its underlying processes are of basic and clinical interest. Herein is reported the case of a pregnant, 31-year-old patient who developed ALL, followed by septic shock and SR of ALL. Information is summari...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.7288
更新日期:2018-01-01 00:00:00
abstract::MicroRNA (miR)-204-5p was previously identified to be downregulated in melanoma compared with melanocytic nevi. This observation prompted a functional study on miR-204-5p and the newly-identified miR-3065-5p, two miRNAs suggested to be tumor-suppressive oncomiRs. Application of miR-204-5p mimics or inhibitors resulted...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.8443
更新日期:2018-06-01 00:00:00
abstract::Death associated protein kinase 1 (DAPK1) is a notable serine/threonine kinase involved in the regulation of multiple cellular pathways, including apoptosis and autophagy. Although DAPK1 is usually considered to be a tumor suppressor, it was previously reported to promote the viability of p53 mutant cancer cell lines ...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.8439
更新日期:2018-06-01 00:00:00
abstract::The aim of the present study was to investigate the expression and function of forkhead box protein 3 (FOXP3) in gastric cancer using a rat model. A total of 92 Wistar rats were divided into two groups: An experimental group (n=46) and a control group (n=46). In the experimental group, sarcosine ethyl ester hydrochlor...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.4752
更新日期:2016-08-01 00:00:00
abstract::Tumor development and progression are multistep processes that involve local tumor growth and invasion, followed by metastasis. The aggressiveness of the tumor is the major determinant of the mortality of oral cancer patients. The present study investigates whether the expression levels of cyclooxygenase-2 (COX-2), nu...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2015.3705
更新日期:2015-11-01 00:00:00
abstract::Cluster of differentiation 44 (CD44), a marker for cancer stem cells, has been reported to be associated with poor prognosis in non-small cell lung cancer (NSCLC), but its involvement in tumor growth has not fully been elucidated. The present study explored the associations between CD44 expression and clinicopathologi...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.8051
更新日期:2018-04-01 00:00:00
abstract::We compared the clinical effects and prognosis of patients receiving lymph node dissection after surgical removal of the thyroid tissues and those not receiving it after the removal. A total of 80 patients diagnosed with differentiated thyroid carcinoma (DTC) by our hospital from March 2012 to March 2014 were successi...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2016.5450
更新日期:2017-01-01 00:00:00
abstract::The aim of the present study was to investigate the optimal strategy and dosimetric measurement of thoracic radiotherapy based on three-dimensional (3D) modeling of mediastinal lymph nodes (MLNs). A 3D model of MLNs was constructed from a Chinese Visible Human female dataset. Image registration and fusion between reco...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2018.8084
更新日期:2018-04-01 00:00:00
abstract::Approximately 34-86% of neoplasms of the salivary glands are located in the parotid gland and parotidectomy is the first-line treatment for parotid gland tumors. Frey syndrome and cosmetic deformity are common complications experienced by patients following parotidectomy and the sternocleidomastoid muscle flap (SCMF) ...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2013.1179
更新日期:2013-04-01 00:00:00
abstract::This study investigated the expression of special AT-rich sequence-binding protein 1 (SATB1) and toll-like receptor 4 (TLR4) protein in breast cancer and its clinical significance. We collected breast cancer tissues from 120 patients and adjacent non-cancerous tissue from 53 patients. SATB1 was expressed in 89 cases o...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2017.6571
更新日期:2017-09-01 00:00:00
abstract::Lung cancer causes over 1.6 million mortalities worldwide annually. MicroRNAs (miRs) are involved in various types of cancer-associated processes. The present study investigated the possible mechanism of miR-107 in the development of lung cancer in order to identify novel targets for clinical treatment. The expression...
journal_title:Oncology letters
pub_type: 杂志文章
doi:10.3892/ol.2020.11248
更新日期:2020-03-01 00:00:00