Abstract:
BACKGROUND:Zinc-finger protein 471 (ZNF471) is a member of the Krüppel-associated box domain zinc finger protein (KRAB-ZFP) family. ZNF471 is methylated in squamous cell carcinomas of tongue, stomach and esophageal. However, its role in breast carcinogenesis remains elusive. Here, we studied its expression, functions, and molecular mechanisms in breast cancer. METHODS:We examined ZNF471 expression by RT-PCR and qPCR. Methylation-specific PCR determined its promoter methylation. Its biological functions and related molecular mechanisms were assessed by CCK-8, clonogenicity, wound healing, Transwell, nude mice tumorigenicity, flow cytometry, BrdU-ELISA, immunohistochemistry and Western blot assays. RESULTS:ZNF471 was significantly downregulated in breast cell lines and tissues due to its promoter CpG methylation, compared with normal mammary epithelial cells and paired surgical-margin tissues. Ectopic expression of ZNF471 substantially inhibited breast tumor cell growth in vitro and in vivo, arrested cell cycle at S phase, and promoted cell apoptosis, as well as suppressed metastasis. Further knockdown of ZNF471 verified its tumor-suppressive effects. We also found that ZNF471 exerted its tumor-suppressive functions through suppressing epithelial-mesenchymal transition, tumor cell stemness and AKT and Wnt/β-catenin signaling. CONCLUSIONS:ZNF471 functions as a tumor suppressor that was epigenetically inactivated in breast cancer. Its inhibition of AKT and Wnt/β-catenin signaling pathways is one of the mechanisms underlying its anti-cancer effects.
journal_name
Clin Epigeneticsjournal_title
Clinical epigeneticsauthors
Tao C,Luo J,Tang J,Zhou D,Feng S,Qiu Z,Putti TC,Xiang T,Tao Q,Li L,Ren Gdoi
10.1186/s13148-020-00959-6subject
Has Abstractpub_date
2020-11-17 00:00:00pages
173issue
1eissn
1868-7075issn
1868-7083pii
10.1186/s13148-020-00959-6journal_volume
12pub_type
杂志文章abstract:BACKGROUND:ADNP syndrome is a rare Mendelian disorder characterized by global developmental delay, intellectual disability, and autism. It is caused by truncating mutations in ADNP, which is involved in chromatin regulation. We hypothesized that the disruption of chromatin regulation might result in specific DNA methyl...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-019-0658-5
更新日期:2019-04-27 00:00:00
abstract:BACKGROUND:Neuroblastoma (NB) is the most common extracranial pediatric solid tumor with a highly variable clinical course, ranging from spontaneous regression to life-threatening disease. Survival rates for high-risk NB patients remain disappointingly low despite multimodal treatment. Thus, there is an urgent clinical...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-015-0054-8
更新日期:2015-02-27 00:00:00
abstract:BACKGROUND:The most common sex chromosomal aneuploidy in males is Klinefelter syndrome, which is characterized by at least one supernumerary X chromosome. While these men have long been considered infertile, focal spermatogenesis can be observed in some patients, and sperm can be surgically retrieved and used for artif...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-019-0720-3
更新日期:2019-08-28 00:00:00
abstract:BACKGROUND:Both forms of facioscapulohumeral muscular dystrophy (FSHD) are associated with aberrant epigenetic regulation of the chromosome 4q35 D4Z4 macrosatellite. Chromatin changes due to large deletions of heterochromatin (FSHD1) or mutations in chromatin regulatory proteins (FSHD2) lead to relaxation of epigenetic...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-015-0072-6
更新日期:2015-03-29 00:00:00
abstract:BACKGROUND:Testicular germ cell tumor such as seminoma is strongly associated with male reproductive problems commonly associated with the alteration of sperm parameters as described in testicular dysgenesis syndrome. Interestingly, numerous studies have reported that the precursor of germ cell cancer, germ cell neopla...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0559-z
更新日期:2018-10-19 00:00:00
abstract:BACKGROUND:Mitochondrial dysregulation and aberrant epigenetic mechanisms have been frequently reported in neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), and several researchers suggested that epigenetic dysregulation in mitochondrial DNA (mtDNA) could contribute to the neurodegenerative pro...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-020-00933-2
更新日期:2020-09-11 00:00:00
abstract:BACKGROUND:Goblet cell metaplasia, a common feature of chronic obstructive pulmonary disease (COPD), is associated with mucus hypersecretion which contributes to the morbidity and mortality among patients. Transcription factors SAM-pointed domain-containing Ets-like factor (SPDEF) and forkhead box protein A2 (FOXA2) re...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0341-7
更新日期:2017-04-24 00:00:00
abstract:BACKGROUND:Abnormal DNA methylation is a hallmark of human cancers and may be a promising biomarker for early diagnosis of human cancers. However, the majority of DNA methylation biomarkers that have been identified are based on the hypothesis that early differential methylation regions (DMRs) are maintained throughout...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-020-00851-3
更新日期:2020-04-21 00:00:00
abstract:BACKGROUND:Numerous pulmonary diseases manifest with upper lobe predominance including cystic fibrosis, smoking-related chronic obstructive pulmonary disease, and tuberculosis. Zonal hypoxia, characteristic of these pulmonary maladies, and oxygen stress in general is known to exert profound effects on various important...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0355-1
更新日期:2017-05-30 00:00:00
abstract:BACKGROUND:Epigenetics changes have been shown to be affected by cigarette smoking. Cigarette smoke (CS)-mediated DNA methylation can potentially affect several cellular and pathophysiological processes, acute exacerbations, and comorbidity in the lungs of patients with chronic obstructive pulmonary disease (COPD). We ...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0335-5
更新日期:2017-04-14 00:00:00
abstract:BACKGROUND:Preterm birth (PTB), defined as child birth before completion of 37 weeks of gestation, is a major challenge in perinatal health care and can bear long-term medical and financial burden. Over a million children die each year due to PTB complications, and those who survive can face developmental delays. Unfor...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0599-4
更新日期:2019-02-11 00:00:00
abstract::The study of DNA methylation in development and disease has 'exploded' as a field in recent years, with three major classes of measurement now routine. These encompass (i) locus-specific, (ii) genome-scale/wide and (iii) 'global' methylation approaches. Measures of global methylation refer to the level of 5-methylcyto...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0311-0
更新日期:2017-01-13 00:00:00
abstract::Cyclin D1 is a cell cycle machine, a sensor of extracellular signals and plays an important role in G1-S phase progression. The human cyclin D1 promoter contains multiple transcription factor binding sites such as AP-1, NF-қB, E2F, Oct-1, and so on. The extracellular signals functions through the signal transduction p...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1007/s13148-010-0018-y
更新日期:2011-08-01 00:00:00
abstract:Background:New efficient therapies for urothelial carcinoma (UC) are urgently required. Small-molecule drugs targeting chromatin regulators are reasonable candidates because these regulators are frequently mutated or deregulated in UC. Indeed, in previous work, Romidepsin, which targets class I histone deacetylases (HD...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0434-3
更新日期:2018-01-04 00:00:00
abstract:BACKGROUND:Hypericin-mediated photodynamic therapy (HY-PDT) has recently captured increased attention as an alternative minimally invasive anticancer treatment, although cancer cells may acquire resistance. Therefore, combination treatments may be necessary to enhance HY-PDT efficacy. Histone deacetylase inhibitors (HD...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0359-x
更新日期:2017-06-08 00:00:00
abstract:BACKGROUND:The current epidemic of obesity and associated diseases calls for swift actions to better understand the mechanisms by which genetics and environmental factors affect metabolic health in humans. Monozygotic (MZ) twin pairs showing discordance for obesity suggest that epigenetic influences represent one such ...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-015-0073-5
更新日期:2015-04-02 00:00:00
abstract:BACKGROUND:Colorectal cancer (CRC) screening can effectively reduce disease-related mortality by detecting CRC at earlier stages. We have previously demonstrated that the presence of SDC2 methylation in stool DNA is significantly associated with the occurrence of CRC regardless of clinical stage. The aim of this study ...
journal_title:Clinical epigenetics
pub_type: 临床试验,杂志文章
doi:10.1186/s13148-019-0642-0
更新日期:2019-03-15 00:00:00
abstract:BACKGROUND:Prostate cancer (PCa), a highly incident and heterogeneous malignancy, mostly affects men from developed countries. Increased knowledge of the biological mechanisms underlying PCa onset and progression are critical for improved clinical management. MicroRNAs (miRNAs) deregulation is common in human cancers, ...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-015-0076-2
更新日期:2015-04-10 00:00:00
abstract:BACKGROUND:Emerging evidence has shown that MUC1 and TFF2 play crucial roles in the H. pylori-infected pathogenesis of gastric cancer (GC). A recent study revealed that H. pylori infection induced obviously increased Tff2 methylation levels in Muc1-/- mice compared with controls. However, little is known of the molecul...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-020-00832-6
更新日期:2020-03-02 00:00:00
abstract:BACKGROUND:Tobacco smoking is a risk factor for multiple diseases, including cardiovascular disease and diabetes. Many smoking-associated signals have been detected in the blood methylome, but the extent to which these changes are widespread to metabolically relevant tissues, and impact gene expression or metabolic hea...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0558-0
更新日期:2018-10-20 00:00:00
abstract::Lymphocytes from the peripheral blood of patients with prostate cancer-the most frequent (noncutaneous) tumor in men-display epigenetic aberrations (altered modes of allelic replication) characteristic of the malignant phenotype. The present study aims to determine whether replication aberrations add certainty to the ...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1007/s13148-011-0029-3
更新日期:2011-08-01 00:00:00
abstract::Epigenetic mechanisms are thought to play a major role in the pathogenesis of the major psychoses (schizophrenia and bipolar disorder), and they may be the link between the environment and the genome in the pathogenesis of these disorders. This paper discusses the role of epigenetics in the management of major psychos...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1007/s13148-011-0038-2
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:Although HPV testing and cytology detection are successful for cervical screening in China, additional procedures are urgently required to avoid misdiagnosis and overtreatment. In this multicenter study, we collected cervical samples during screening in clinics. A total of 588 women with HPV16/18+ and/or cyt...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-020-00849-x
更新日期:2020-04-21 00:00:00
abstract:BACKGROUND:Most research into myocardial infarctions (MIs) have focused on preventative efforts. For survivors, the occurrence of an MI represents a major clinical event that can have long-lasting consequences. There has been little to no research into the molecular changes that can occur as a result of an incident MI....
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0588-7
更新日期:2018-12-27 00:00:00
abstract:BACKGROUND:The introduction of pathology tissue-chromatin immunoprecipitation (PAT-ChIP), a technique allowing chromatin immunoprecipitation (ChIP) from formalin-fixed paraffin-embedded (FFPE) tissues, has extended the application of chromatin studies to clinical patient samples. However, extensive crosslinking introdu...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0576-y
更新日期:2018-11-16 00:00:00
abstract:BACKGROUND:Frozen-thawed embryo transfer (FET) is increasingly available for the improvement of the success rate of assisted reproductive technologies other than fresh embryo transfer (ET). There have been numerous findings that FET provides better obstetric and perinatal outcomes. However, the birth weight of infants ...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0379-6
更新日期:2017-08-03 00:00:00
abstract:BACKGROUND:Many conventional chemotherapeutic drugs are known to be involved in DNA damage, thus ultimately leading to apoptosis of leukemic cells. However, they fail to completely eliminate leukemia stem cells (LSCs) due to their higher DNA repair capacity of cancer stem cells than that of bulk cancer cells, which bec...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-017-0377-8
更新日期:2017-08-14 00:00:00
abstract:BACKGROUND:Preeclampsia is one of the leading causes of fetal and maternal morbidity and mortality worldwide. Preterm babies of mothers with early onset preeclampsia (EOPE) are at higher risks for various diseases later on in life, including cardiovascular diseases. We hypothesized that genome-wide epigenetic alteratio...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-015-0052-x
更新日期:2015-03-13 00:00:00
abstract:Background:Maternal social environmental stressors during pregnancy are associated with adverse birth and child developmental outcomes, and epigenetics has been proposed as a possible mechanism for such relationships. Methods:In a Mexican-American birth cohort of 241 maternal-infant pairs, cord blood samples were meas...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-018-0494-z
更新日期:2018-05-08 00:00:00
abstract:BACKGROUND:Obesity and diabetes mellitus are directly implicated in many adverse health consequences in adults as well as in the offspring of obese and diabetic mothers. Hispanic Americans are particularly at risk for obesity, diabetes, and end-stage renal disease. Maternal obesity and/or diabetes through prenatal prog...
journal_title:Clinical epigenetics
pub_type: 杂志文章
doi:10.1186/s13148-020-0824-9
更新日期:2020-02-19 00:00:00