Abstract:
:Increasing evidence indicates that dysregulation of microRNAs (miRNAs) plays a crucial role in human malignancies. Here, we showed that microRNA-422a (miR-422a) expression was dramatically downregulated in gastric cancer (GC) samples and cell lines compared with normal controls, and that its expression level was inversely related to tumor size and depth of infiltration. Functional studies revealed that the overexpression of miR-422a in GC tumor cells suppressed cell proliferation and migration, and drove a metabolic shift from aerobic glycolysis to oxidative phosphorylation. Mechanistic analysis suggested that miR-422a repressed pyruvate dehydrogenase kinase 2 (PDK2) to restore activity of the pyruvate dehydrogenase (PDH), the gatekeeping enzyme that catalyzes the decarboxylation of pyruvate to produce acetyl-CoA. Importantly, we further demonstrated that the mir-422a-PDK2 axis also influenced another metabolic pathway, de novo lipogenesis in cancer cells, and that it subsequently affected reactive oxygen species (ROS) and RB phosphorylation levels, ultimately resulting in cell cycle arrest in G1 phase. Our findings show that the miR-422a-PDK2 axis is an important mediator in metabolic reprogramming and a promising therapeutic target for antitumor treatment.
journal_name
Cell Death Disjournal_title
Cell death & diseaseauthors
He Z,Li Z,Zhang X,Yin K,Wang W,Xu Z,Li B,Zhang L,Xu J,Sun G,Wang L,Li Q,Huang X,Zhang L,Zhang D,Xu H,Xu Zdoi
10.1038/s41419-018-0564-3subject
Has Abstractpub_date
2018-05-01 00:00:00pages
505issue
5issn
2041-4889pii
10.1038/s41419-018-0564-3journal_volume
9pub_type
杂志文章abstract::Interferon gamma (IFNγ) is a key moderator of cell-mediated immunity with diverse, mainly pro-inflammatory actions on immunocytes and target tissue. Recent studies have shown it may enhance anti-tumor and antiviral effects of CD8 T cells. Here we investigate the mechanisms by which IFNγ mediates CD8 T-cell cytotoxic f...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2017.67
更新日期:2017-06-01 00:00:00
abstract::Altered mitochondrial metabolism acts as an initial cause for cardiovascular diseases and metabolic intermediate succinate emerges as a mediator of mitochondrial dysfunction. This work aims to investigate whether or not extracellular succinate accumulation and its targeted G protein-coupled receptor-91 (GPR91) activat...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-018-0708-5
更新日期:2018-06-04 00:00:00
abstract::Cockayne syndrome (CS) is a progressive developmental and neurodegenerative disorder resulting in premature death at childhood and cells derived from CS patients display DNA repair and transcriptional defects. CS is caused by mutations in csa and csb genes, and patients with csb mutation are more prevalent. A hallmark...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2014.228
更新日期:2014-05-29 00:00:00
abstract::Inhibitors of apoptosis (IAP) proteins contribute to cell death resistance in malignancies and emerged as promising targets in cancer therapy. Currently, small molecules mimicking the IAP-antagonizing activity of endogenous second mitochondria-derived activator of caspases (SMAC) are evaluated in phase 1/2 clinical tr...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2017.355
更新日期:2017-08-03 00:00:00
abstract::Adipogenesis is a process which induces or represses many genes in a way to drive irreversible changes of cell phenotypes; lipid accumulation, round cell-shape, secreting many adipokines. As a master transcription factor (TF), PPARγ2 induces several target genes to orchestrate these adipogenic changes. Thus induction ...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-018-1249-7
更新日期:2019-01-08 00:00:00
abstract::MicroRNAs (miRNAs) are important class of functional regulators involved in human cancers development, including colorectal cancer (CRC). Exploring aberrantly expressed miRNAs may provide us with new insights into the initiation and development of CRC by functioning as oncogenes or tumor suppressors. The aim of our st...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-018-1188-3
更新日期:2019-02-12 00:00:00
abstract::As an important modality for the local control of colorectal cancer (CRC), radiotherapy or neoadjuvant radiotherapy is widely applied in the clinic, but radioresistance has become a major obstacle for CRC radiotherapy. Here we reported that B7-H3, an important costimulatory molecule, is associated with radioresistance...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-020-03041-4
更新日期:2020-10-03 00:00:00
abstract::Mitochondrial dysfunction and synaptic damage are critical early features of Alzheimer's disease (AD) associated with amyloid β (Aβ) and τ. We previously reported that the scaffolding protein RanBP9, which is overall increased in AD, simultaneously promotes Aβ generation and focal adhesion disruption by accelerating t...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2012.203
更新日期:2013-01-24 00:00:00
abstract::Treatment options for necrotizing enterocolitis (NEC) remain inadequate. Here we examined if and how prolyl hydroxylase 2 (PHD2) silencing enhances the paracrine effects of bone-marrow-derived mesenchymal stem cells (BM-MSCs) on NEC. In this study, BM-MSCs were transduced with lentiviruses containing GFP (GFP-MSC) or ...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-020-2378-3
更新日期:2020-03-16 00:00:00
abstract::Ferroptosis is a novel form of programmed cell death in which the accumulation of intracellular iron promotes lipid peroxidation, leading to cell death. Recently, the induction of autophagy has been suggested during ferroptosis. However, this relationship between autophagy and ferroptosis is still controversial and th...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-019-2064-5
更新日期:2019-10-28 00:00:00
abstract::Recent evidence indicates that long noncoding RNAs (lncRNAs) have a critical role in the regulation of cellular processes such as differentiation, proliferation, and metastasis. These lncRNAs are dysregulated in a variety of cancers and many function as tumor suppressors; however, the regulatory factors involved in si...
journal_title:Cell death & disease
pub_type: 临床试验,杂志文章
doi:10.1038/cddis.2014.256
更新日期:2014-06-26 00:00:00
abstract::Peroxisome proliferator-activated receptor gamma (PPARγ) is a key regulator of adipocyte differentiation and has an important role in metabolic syndrome. Phosphorylation of the receptor's ligand-binding domain at serine 273 has been shown to change the expression of a large number of genes implicated in obesity. The d...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2011.74
更新日期:2011-08-11 00:00:00
abstract::Inhibition of human mitochondrial peptide deformylase (HsPDF) depolarizes the mitochondrial membrane, reduces mitochondrial protein translation and causes apoptosis in Burkitt's lymphoma. We showed that HsPDF mRNA and protein levels were overexpressed in cancer cells and primary acute myeloid leukemia samples. Myc reg...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2014.112
更新日期:2014-03-27 00:00:00
abstract::Bu-Shen-Ning-Xin Decoction (BSNXD) administration has alleviated the early pathologic damage of atherosclerosis by inhibiting the adhesion molecule expression and upregulating the estrogen receptor (ER) β expression in endothelial cells, and increasing the serum nitric oxide (NO) level without any effect on serum lipi...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2013.66
更新日期:2013-03-21 00:00:00
abstract::Skeletal muscle atrophy is one of the clinical symptoms of myotonic dystrophy type 1 (DM1). A decline in skeletal muscle regeneration is an important contributor to muscle atrophy. Skeletal muscle satellite cells (SSCs) drive skeletal muscle regeneration. Increased autophagy can reduce the proliferative capacity of SS...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-020-02756-8
更新日期:2020-07-18 00:00:00
abstract::Reactive gliosis is an early pathological feature common to most neurodegenerative diseases, yet its regulation and impact remain poorly understood. Normally astrocytes maintain a critical homeostatic balance. After stress or injury they undergo rapid parainflammatory activation, characterized by hypertrophy, and incr...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2016.277
更新日期:2016-09-29 00:00:00
abstract::The aim of the present report was to investigate whether, in the mammalian spinal cord, cell death induced by transient excitotoxic stress could trigger activation and proliferation of endogenous neuroprogenitor cells as a potential source of a lesion repair process and the underlying time course. Because it is diffic...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2013.431
更新日期:2013-10-31 00:00:00
abstract::Embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) hold great promise for regenerative medicine, disease treatment, and organ transplantation. As the ethical issue of human ESCs and similarity of pig in human genome and physiological characteristics, the porcine iPSCs (piPSCs) have become an ideal ...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-019-1417-4
更新日期:2019-02-20 00:00:00
abstract::Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer, and is also highly resistant to conventional chemotherapy treatments. In this study, we report that Longikaurin A (LK-A), an ent-kaurane diterpenoid isolated from the plant Isodon ternifolius, induced cell cycle arrest and apoptosis in hum...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2014.66
更新日期:2014-03-20 00:00:00
abstract::The oncogenic human papillomavirus (HPV) E6/E7 proteins are essential for the onset and maintenance of HPV-associated malignancies. Here, we report that activation of the cellular ubiquitin-proteasome system (UPS) by the omega-3 fatty acid, docosahexaenoic acid (DHA), leads to proteasome-mediated degradation of E6/E7 ...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2014.477
更新日期:2014-11-13 00:00:00
abstract::The high mortality in breast cancer is often associated with metastatic progression in patients. Previously we have demonstrated that testes-specific protease 50 (TSP50), an oncogene overexpressed in breast cancer samples, could promote cell proliferation and tumorigenesis. However, whether TSP50 also has a key role i...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2015.61
更新日期:2015-03-26 00:00:00
abstract::Primary cells respond to irradiation by activation of the DNA damage response and cell cycle arrest, which eventually leads to senescence or apoptosis. It is not clear in detail which signaling pathways or networks regulate the induction of either apoptosis or senescence. Primary human fibroblasts are able to withstan...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2013.15
更新日期:2013-02-14 00:00:00
abstract::Impaired synaptic plasticity and neuron loss are hallmarks of Alzheimer's disease and vascular dementia. Here, we found that chronic brain hypoperfusion (CBH) by bilateral common carotid artery occlusion (2VO) decreased the total length, numbers and crossings of dendrites and caused neuron death in rat hippocampi and ...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2017.243
更新日期:2017-06-01 00:00:00
abstract::Little is known about the function of Keratin 80 (KRT80), an epithelial keratin, in cancer. This study investigated the role of KRT80 in the prognosis of colorectal carcinoma (CRC) and the underlying mechanisms involved in CRC migration and invasion. We analyzed the expression of KRT80 using The Cancer Genome Atlas an...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-018-1030-y
更新日期:2018-09-27 00:00:00
abstract::The glutamate-induced excitotoxicity pathway has been reported in several neurodegenerative diseases. Molecules that inhibit the release of glutamate or cause the overactivation of glutamate receptors can minimize neuronal cell death in these diseases. Osmotin, a homolog of mammalian adiponectin, is a plant protein fr...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2013.538
更新日期:2014-01-30 00:00:00
abstract::Many types of tumor cell are devoid of the extracellular matrix proteoglycan osteoglycin (Ogn), but its role in tumor biology is poorly studied. Here we show that RNAi of Ogn attenuates stress-triggered cell death, whereas its overexpression increases cell death. We found that the transcription factor C/EBPβ regulates...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2017.155
更新日期:2017-04-06 00:00:00
abstract::Ionizing radiation (IR) response has been extensively investigated in BMSCs with an increasing consensus that this type of cells showed relative radiosensitivity in vitro analysis. However, the underlying mechanism of IR-induced injury of BMSCs has not been elucidated. In current study, the regulatory role of miR-22/R...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-019-1373-z
更新日期:2019-03-07 00:00:00
abstract::We previously showed that mice with knockout of Cytl1, a functionally uncharacterized cytokine candidate, exhibit normal endochondral ossification and long-bone development. Here, we investigated the potential functions of CYTL1 in bone homeostasis. We found that Cytl1-/- mice exhibited higher bone mass than wild-type...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/s41419-018-1284-4
更新日期:2019-01-18 00:00:00
abstract::Erythropoietin (EPO) has been well known as a hematopoietic cytokine over the past decades. However, recent reports have demonstrated that EPO plays a neuroprotective role in the central nervous system, and EPO has been considered as a therapeutic target in neurodegenerative diseases such as ischemic stroke. Despite t...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2017.381
更新日期:2017-08-17 00:00:00
abstract::Histological inspection of visually normal tissue adjacent to neoplastic lesions often reveals multiple foci of cellular abnormalities. This suggests the presence of a regional carcinogenic signal that spreads oncogenic transformation and field cancerization. We observed an abundance of mutagenic reactive oxygen speci...
journal_title:Cell death & disease
pub_type: 杂志文章
doi:10.1038/cddis.2016.492
更新日期:2017-01-19 00:00:00