Abstract:
AIMS:Increasing evidence links the abnormal expression of microRNAs and ATP-binding cassette subfamily C member 4 (ABCC4) with tumor development and progression, as well as with chemoresistance. Our aims were to determine the therapeutic potential of targeting both miR-124-3p and ABCC4 in breast cancer cells and to determine if duel targeting increased their sensitivity to chemotherapeutic drugs, in vitro. MATERIALS AND METHODS:The expression of the ABCC4 protein and miR-124-3p were detected, respectively, by immunohistochemical staining and quantitative real-time polymerase chain reaction in breast cancer tumor tissue, MCF-7 and MCF-7-ADR cell lines. Suppression of ABCC4 expression and miR-124-3p overexpression were performed in MCF-7-ADR cell lines. Western blot assays were used to detect expression of ABCC4 and permeability glycoprotein 1/multi-drug resistance protein 1 (P-gp) in cells. Cell Counting Kit-8, flow cytometry, transwell, and scratch assays were conducted to detect cell proliferation, cell cycle, invasion, and migration of cells. RESULTS:We found that ABCC4 protein expression was significantly increased, while the miR-124-3p level was significantly decreased in breast cancer tissue and cell lines. Tumor size and clinical tumor node metastasis stage were significantly correlated with elevated expression of ABCC4 and decreased expression of miR-124-3p. Interestingly, ABCC4 expression was significantly increased in MCF-7-ADR cells, while miR-124-3p level was significantly decreased compared with MCF-7 cells. The inhibition of ABCC4 and miR-124-3p overexpression both led to a significant decrease in cell proliferation, invasion, and migration of MCF-7-ADR cells, and combination of suppression of ABCC4 with miR-124-3p overexpression had a synergistic inhibitory effect. Our results further demonstrated that inhibition of ABCC4 expression and overexpression of miR-124-3p significantly enhanced the sensitivity to adriamycin (ADR) in MCF-7-ADR cells, and that simultaneous dual-targeting of miR-124-3p and ABCC4 had a stronger promotive effect on the sensitivity to ADR in MCF-7-ADR cells. Moreover, western blot analysis showed that miR-124-3p overexpression significantly inhibited P-gp expression in MCF-7-ADR cells. CONCLUSION:Our data demonstrate that the combination of downregulation of ABCC4 with overexpression of miR-124-3p significantly increased sensitivity to ADR in MCF-7-ADR cells. This finding suggests that similar dual targeting may serve as a means to enhance therapies for drug-resistant breast cancers.
journal_name
Genet Test Mol Biomarkersjournal_title
Genetic testing and molecular biomarkersauthors
Hu D,Li M,Su J,Miao K,Qiu Xdoi
10.1089/gtmb.2018.0259subject
Has Abstractpub_date
2019-03-01 00:00:00pages
156-165issue
3eissn
1945-0265issn
1945-0257journal_volume
23pub_type
杂志文章abstract:: Objective: Pancreatic cancer (PC) is a serious disease with poor outcomes, and its prevalence has been increasing steadily. The circadian rhythm (CR) is involved in multiple physiological events and maintains homeostasis. Alterations in the CR elevate the risk of developin...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2020.0179
更新日期:2020-12-29 00:00:00
abstract:: Aims: This meta-analysis evaluated the value of using Epstein-Barr virus (EBV) DNA titers as a predictive factor in assessing the clinical course of nasopharyngeal carcinoma (NPC) patients in Southeast Asia. Methods: A systemat...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析
doi:10.1089/gtmb.2018.0304
更新日期:2019-07-01 00:00:00
abstract:AIMS:To identify the pathogenic mutation underlying microcephaly primary hereditary (MCPH) in a large consanguineous Pakistani family. METHODS:A five-generation family with an autosomal recessive transmission of MCPH was recruited. Targeted next-generation DNA sequencing was carried out to analyze the genomic DNA samp...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2017.0229
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:Interleukin-6 (IL-6) is a pleiotropic cytokine and important mediator of many inflammatory processes, which might affect susceptibility to multiple sclerosis (MS). The aim of this study was to assess the effect of IL-6-174G/C polymorphism on the risk of MS using a meta-analysis. MATERIALS AND METHODS:The Pub...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析,评审
doi:10.1089/gtmb.2013.0387
更新日期:2014-02-01 00:00:00
abstract::Molecular characterization of 27 cytogenetically confirmed Indian XY females was attempted by screening selected regions of candidate genes namely SRY (HMG box) and the ligand-binding domain of androgen receptor (AR) (Exons 5-8). Three of the index cases showed sequence variations in exons of the AR gene: a deletion m...
journal_title:Genetic testing and molecular biomarkers
pub_type: 临床试验,杂志文章,评审
doi:10.1089/gtmb.2011.0292
更新日期:2012-07-01 00:00:00
abstract:AIMS:Essential hypertension (EH) is a disease in which both environment and genes have an important role. This study was designed to identify the interaction model between genetic variants and environmental risk factors that most highly potentiates EH development. METHODS:We performed a case-control study with 1641 pa...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2017.0048
更新日期:2017-10-01 00:00:00
abstract:: Aims: Pathogenic variants in mitochondrial DNA are known to be associated with sensorineural hearing loss (SNHL) and aminoglycoside-induced HL. Among them, the m.1555A>G mutation is the most common. Thus, a rapid and easy companion diagnostic method for this mutation would...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,随机对照试验
doi:10.1089/gtmb.2020.0105
更新日期:2021-01-01 00:00:00
abstract:AIM:The present study was undertaken to investigate a length polymorphism of (GT)n repeats of the heme oxygenase-1 (HMOX-1) gene and its association with serum bilirubin levels in apparently healthy adults. METHODS:A total of 211 individuals (normal hematology and liver function test) with bilirubin levels of 1.7 to 2...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2010.0132
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Cystic fibrosis (CF) is the most common inherited disorder in Caucasian populations, with more than 1400 cystic fibrosis transmembrane conductance regulator (CFTR) gene mutations. The type of mutations and their distributions varies widely between different countries and/or ethnic groups. METHODS:We charact...
journal_title:Genetic testing and molecular biomarkers
pub_type: 临床试验,杂志文章
doi:10.1089/gtmb.2011.0283
更新日期:2012-07-01 00:00:00
abstract:AIMS:The genetics of folate metabolism is one of the most significant mechanisms influencing fetal growth and may underlie some cases of unexplained recurrent miscarriage. Reduced folate carrier 1, encoded by the SLC19A1 gene, is a transporter of folate. Folate deficiency and elevated levels of homocysteine could be di...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2015.0230
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Epigenetic alterations in the global DNA methylation status may be associated with an increased risk of some cancer types in humans. The methylenetetrahydrofolate reductase (MTHFR) gene is involved in folic acid metabolism and plays an essential role in inherited DNA methylation profiles. The common 677 C>T ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2011.0347
更新日期:2012-07-01 00:00:00
abstract:AIMS:Serotonin has been related to appetite and body weight control. The aim of this study was to investigate a possible association of the -1438 /A promoter polymorphism of the serotonin 2A receptor (5HT2AR) gene with obesity-related variables and response to sibutramine. PATIENTS/METHODS:We examined the potential im...
journal_title:Genetic testing and molecular biomarkers
pub_type: 临床试验,杂志文章
doi:10.1089/gtmb.2011.0133
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Although environmental factors play an important role in susceptibility to myocardial infarction (MI), genetic determinants also provide a significant contribution. This study aimed to determine whether or not MI susceptibility is influenced by the SDF1-rs1801157A/G and HHEX-rs1111875 A/G polymorphisms in an...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2017.0023
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Urothelial carcinoma (UC) is the most common histologic subtype of bladder cancer. The administration of mitomycin C (MMC) into the bladder after transurethral resection of the bladder tumor (TURBT) is a common treatment strategy for preventing recurrence after surgery. We previously applied hydrostatic pres...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2013.0443
更新日期:2014-06-01 00:00:00
abstract:AIMS:New sequencing technologies allow increased opportunities to use genomic-based diagnostic tests (genomic tests) in routine clinical practice, which will impact healthcare budgets and patients' outcomes. This article aims to generate a list of recommendations on how the principles and methods of cost-effectiveness ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,评审
doi:10.1089/gtmb.2017.0105
更新日期:2017-12-01 00:00:00
abstract:: Background: Diabetic peripheral neuropathy (DPN) affects nearly 50% of the diabetic population. Advanced glycation end products, measured through skin autofluorescence (SAF), play an important role in the diagnosis and prevention of DPN. To date, however, no relevant study...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2018.0328
更新日期:2019-06-01 00:00:00
abstract:AIMS:Mannose-binding lectin (MBL) is a protein synthesized by the liver and its immune response is associated with the development of liver fibrosis. We hypothesized that the polymorphisms in the Exon 1 region (52, 54, 57) and promoter regions (-550 H/L, -221 X/Y) of the MBL2 gene were associated with the severity of p...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2017.0051
更新日期:2017-09-01 00:00:00
abstract::The lamin A/C proteins are major structural and functional components of the nuclear lamina. Mutations identified in LMNA encoding lamin A/C belong to the most frequently described causes for inherited forms of dilated cardiomyopathy (DCM). To elucidate the clinical characteristics of LMNA mutation carriers we perform...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2011.0214
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND AND AIMS:Interleukin-10 (IL-10) plays a vital part in the pathophysiology of vascular inflammation. Several studies have investigated the potential association between the IL-10-1082A/G polymorphism and the risk of ischemic stroke where the inflammatory process is involved, but the conclusions have been inco...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,meta分析
doi:10.1089/gtmb.2016.0409
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND/AIM:several studies have looked at the potential link between angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism and the risk of hypertension and have shown that the DD polymorphism may be associated with a higher prevalence of hypertension. Our objective was to assess for possible ass...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2010.0096
更新日期:2010-12-01 00:00:00
abstract:AIM:The purpose of this study was to determine if there is a correlation between telomere length (TL) and mitochondrial DNA copy number (mtDNAcn) in children. METHODS:Leukocyte TL and mtDNAcn were measured by real-time PCR in 98 Mexican children 6-12 years of age from Salamanca, México. RESULTS:A positive association...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2016.0176
更新日期:2016-11-01 00:00:00
abstract::Previous studies have demonstrated that miR-34 family members are abnormally expressed in gastric cancer. Overexpression of the miR-34 family suppresses gastric carcinogenesis, whereas downregulation of the miR-34 family promotes tumorigenesis. p53 can bind to the promoter region of miR-34b/c, leading to an increase o...
journal_title:Genetic testing and molecular biomarkers
pub_type: 临床试验,杂志文章
doi:10.1089/gtmb.2014.0287
更新日期:2015-04-01 00:00:00
abstract:AIMS:Genetic testing has become a routine part of prenatal care, the test being offered according to ethnic origin. However, not all clients take the offered tests while others take unnecessary tests. The present study aimed at examining the effects of risk perception, hypochondria, trait anxiety, and attitudes to gene...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2008.0141
更新日期:2009-08-01 00:00:00
abstract:: Background and Aims: Interleukin-15 (IL-15) is a key player in the pathogenesis of celiac disease (CD). We investigated the functional role of IL-15 in the process of epithelial cell phenotypic modification at different stages of CD. Materials and ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2019.0265
更新日期:2020-08-01 00:00:00
abstract::We studied the effect of five newly synthesized steroidal derivatives of nitrogen mustards. These derivatives have as alkylators either P-N, N-bis(2-chloroethyl)aminophenyl-butyrate (CHL) or P-N, N-bis(2-chloroethyl)aminophenyl-acetate (PHE) groups esterified with different modified steroidal nuclei. We examined them ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2011.0234
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:To explore the relationship between the endothelial lipase (EL) gene promoter -384A/C polymorphism and acute coronary syndrome (ACS) and lipid status in elderly Uygur patients in Xinjiang. METHODS:The polymerase chain reaction-restriction fragment length polymorphism method was used to detect the EL gene pro...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2014.0195
更新日期:2014-11-01 00:00:00
abstract:OBJECTIVES:Currently, there is a debate regarding the roles of two functional fibrinogen-related variants (rs6050 and rs1800790) and ischemic stroke (IS). MATERIALS AND METHODS:A total of 1402 subjects (834 cases and 568 controls) were genotyped for single-nucleotide polymorphisms rs6050 and rs1800790 with the ligatio...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2013.0131
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:There has been recent recognition that the GSTM1 gene is associated with successful aging and longevity. It has been hypothesized that individuals with a GSTM1 deletion are at a greater risk for developing a plethora of diseases. This study was carried out to investigate the association between the rs574344 ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2018.0178
更新日期:2019-01-01 00:00:00
abstract:: Aims: To compare fine-needle aspiration cytology (FNAC) with imprinted gene detection in the differential diagnosis of benign and malignant thyroid nodules. Methods: A total of 34 patients (35 cases of thyroid nodules) were exa...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章
doi:10.1089/gtmb.2019.0028
更新日期:2019-09-01 00:00:00
abstract::Genes and their products involved in the biological pathways of human cancers have been studied as either targets of new therapies, or predictive markers for the sensitivity of or resistance to the therapies. Companion diagnostic testing on biological markers for targeted cancer therapies has become a vital component ...
journal_title:Genetic testing and molecular biomarkers
pub_type: 杂志文章,评审
doi:10.1089/gtmb.2012.0510
更新日期:2013-07-01 00:00:00