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Herbal formula YYJD induces lung cancer cell apoptosis via activation of EGR1

ABSTRACT: In this study,we demonstrated the transcription factor EGR1 is activated by TCM YYJD and such activation mediated YYJD-induced apoptosis in lung cancer cells and provided a novel insight to understand the anti-tumor mechanism of Chinese herb YYJD.

INSTRUMENT(S): NextSeq 500

ORGANISM(S): Homo sapiens

SUBMITTER: zhao qiang

PROVIDER: E-MTAB-7236 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Herbal formula YYJD induces lung cancer cell apoptosis via activation of EGR1 (RNA-seq)

Project description:In this study,we demonstrated the transcription factor EGR1 is activated by TCM YYJD and such activation mediated YYJD-induced apoptosis in lung cancer cells and provided a novel insight to understand the anti-tumor mechanism of Chinese herb YYJD.

2018-11-01 | E-MTAB-7237 | biostudies-arrayexpress

Androgen Promotes Differentiation of Promyelocytic Leukemia Zinc Finger (PLZF)+ Spermatogonia pool via Indirect Regulatory Pattern

Project description:We examined a regulatory role of the AR during the process of spermatogenesis. Using a SSCs-Sertoli cells co-culture system, we demonstrated that androgen negatively regulated Plzf in SSCs that co-exist with Sertoli cells. In addition, we identified Gata2 as a target of AR in Sertoli cells, and subsequently observed that Wilms tumor 1 (WT1) and β1-integrin as two putative intermediate molecules to transfer the differentiation signals to SSCs. This signal pathway was further verified using androgen pharmacological deprivation mice model. These results demonstrate a regulatory pattern of androgen in SSCs niche, that androgen turns off the stemness maintenance switch PLZF in undifferentiated spermatogonia populations to promote spermatogenesis in an indirect way via multiple steps of signal transduction.

2019-02-28 | E-MTAB-7129 | biostudies-arrayexpress

Epigenetic profiling of H3K4me3 reveals Herbal Medicine Jinfukang-induced epigenetic alteration is involved in anti-Lung Cancer activity

Project description:Traditional Chinese medicine Jinfukang (JFK) has been used for lung cancer treatment for more than ten years, however, the mechanism is not well understood. Previously we showed that JFK inhibited survival of a human lung cell line A459 via cell apoptosis and inducing cell cycle arrest. To better understand the mechanism, we performed ChIP-seq assays to evaluate the effect of JFK on genome-wide profiling of H3K4Me3 modification.

2016-06-01 | E-MTAB-3992 | biostudies-arrayexpress

The influence of the estrous cycle on sex differences in the rat adult medial prefrontal cortex transcriptome [ChIP-Seq]

Project description:Hormonal fluctuations throughout the ovarian cycle contribute to femalesâ?? higher vulnerability to anxiety disorders when compared to males. Notably, such sex differences are controlled by regulation of genes in the medial prefrontal cortex (mPFC) including the transcription factor early growth response 1 (Egr1) in rats, which highlights a control of anxiety-like behaviors by sexually-biased gene expression. We therefore undertook a large-scale characterization of sex differences and their interaction with the estrous cycle in the adult mPFC transcriptome and report that proestrus and diestrus females (with high and low ovarian hormones levels, respectively) exhibited a partly-opposed sexually-biased transcriptome. Surprisingly, the extent of regulations within females vastly exceeded sex differences, and support a multi-level reorganization of synaptic function across the estrous cycle. Furthermore, genome-wide analysis of Egr1 binding highlighted its role in controlling the synapse-related genes varying within females, and the sex- and estrous cycle-dependent transcriptomic reorganization in the rat mPFC. Early growth response 1 (Egr1) binding profiling in the adult rat medial prefrontal cortex of males, proestrus females, and diestrus females. A total of 9 animals were used, corresponding to 3 Males, 2 proestrus females, and 4 diestrus females.

2015-10-23 | E-GEOD-69772 | biostudies-arrayexpress

Global analysis of in vivo EGR1-binding sites in erythroleukemia cell K562 using chromatin immunoprecipitation and massively parallel sequencing

Project description:Early growth response gene 1 (EGR1) has been implicated in megakaryocyte differentiation induced by PMA (phorbol 12-myristate 13-acetate). The identification of direct EGR1 target genes in global scale is critical for our understanding of how EGR1 contributes to this process. In this study, we provide a global survey on the binding location of EGR1 in the K562 cell treated by PMA using chromatin immunoprecipitation and massively parallel sequencing (ChIP-Seq). K562 is a human erythroleukemia cell line, which is situated in the common progenitor stage of megakaryocytic and erythroid lineages of the hematopoietic stem cell differentiation and its normally following differentiation is blockaded. Upon exposure to PMA stimuli, K562 cell can be induced into megakaryocytic cell, which provides a model for the study of transcriptional control networks. Over 14 000 highly confident in vivo EGR1 binding sites were identified in PMA treated K562 cell. More than 70% of these genomic sites associated with EGR1 binding were located around annotated gene regions. This whole genome study on the EGR1 targets may help a better understanding of the EGR1 regulated genes and the downstream pathway in megakaryocyte differentiation. The in vivo binding locations of EGR1 in K562 cell treated with PMA (phorbol 12-myristate 13-acetate, 10 ng/ml for 2 hours) were identified using chromatin immunoprecipitation combing with massively parallel sequencing (ChIP-Seq) based on AB SOLiD System 2.0.

2010-09-08 | E-GEOD-21665 | biostudies-arrayexpress

The influence of the estrous cycle on sex differences in the rat adult medial prefrontal cortex transcriptome

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-10-23 | E-GEOD-69773 | biostudies-arrayexpress

The Hippo tranducer YAP1 transforms activated satellite cells and is a potent effector of embryonal rhabdomyosarcoma formation

Project description:The Hippo pathway effector YAP1 controls stem cell fate in epithelial tissues, but its role in stem cells of non-epithelial tissues, such as skeletal muscle, is poorly documented. Here we show that sustained YAP1 activity in mouse activated satellite cells in vivo induces rhabdomyosarcoma (RMS) resembling human embryonal RMS (ERMS) with high penetrance and short latency. The transcriptional program of YAP1 in ERMS drives pro-proliferative pathways whilst decreasing MyoD1 and MEF2 pro-differentiation activity to globally maintain the myoblastic phenotype of ERMS. Normalization of YAP1 expression reduced tumor burden and allowed myogenic differentiation of YAP1-driven and RD ERMS xenografts in situ, thereby identifying YAP1 as a potent RMS-causing oncogene and potential target for differentiation therapy. A total of four samples were analyzed. Two ChIP-Seq datasets from RD human cells, containing reads connected to TEAD binding and IgG binding as control/background; two ChIP-Seq datasets from YAP-ERMS mouse cells, containing reads connected to TEAD binding and Input reads as control/background

2014-08-12 | E-GEOD-55186 | biostudies-arrayexpress

ChIP-seq of CSF-1R in THP-1 cell lines deleted for EGR1 gene by CRISPR-Cas9 and ChIP-seq of CSF-1R in 2 CMML patients

Project description:CSF-1R is recruited on EGR1 motifs in monocytes where it colocalizes with EGR1. To address if EGR1 required for CSF-1R recruitment on chromatin, THP-1 monocytic cell line has been deleted for EGR1 by CRISPR-Cas9 approach. 3 clones were generated by single cell cloning and CSF-1R localization on chromatin was compared to two unmodified THP-1 clones by ChIP-sequencing. Since the read number was strongly decreased in the EGR1-deleted clones, the three clones were pooled for the comparison with wild-type clones. ChIPseq of CSF-1R (Nter Antibody) in monocytes of two CMML patients (CMML2130 and CMML2609)

2019-03-28 | E-MTAB-7756 | biostudies-arrayexpress

Expression data from EGR1-transfected H1299 cells vs normal H1299 cells

Project description:The functions of EGR1, a multifunctional transcription factor, in prostate cancer are well documented. However, little is known about the functions of EGR1 in lung cancer. we observed the function of EGR1 in non-small cell lung carcinoma (NSCLC) and identified the genes that influence cell fate and tumor development. We used microarrays to detail the global programme of gene expression and identified genes differentially expressed when EGR1-overexpressed. We have demonstrated that EGR1 is able to increase cell apoptosis, and inhibit metastasis. And we sought to find genes distributed to decrease the malignancy of human non-small cell lung cancer regulated by EGR1. To that end, H1299 cells were transfected either EGR1 or pcDNA3.1. After 48h, cells were collected for RNA extraction and hybridization on Affymetrix microarrays (PEGR1 VS PCDNA3.1).

2013-09-17 | E-GEOD-50913 | biostudies-arrayexpress

Role of Anlotinib-induced CCL2 decrease in anti-angiogensis and response prediction for Non-Small Cell Lung Cancer therapy

Project description:Purpose: Our previous clinical trials have been demonstrated that Anlotinib can inhibit tumor growth upon refractory advanced non-small cell lung cancer (NSCLC) patients with the possibility mechanism of anti-angiogenesis. The present study sought to reveal the underlying molecular mechanism of Anlotinib-induced anti-angiogenesis in advanced NSCLC. Experimental Design: Computed tomography (CT) was used to evaluate the treatment effect of Anlotinib upon refractory advanced NSCLC patients. Transcriptome profiling was performed to identify the key gene expression alteration in NCI-H1975 cells before and after Anlotinib treatment. NCI-H1975 derived xenograft model was applied to investigate treatment effect and verify anti-angiogenesis mechanism of Anlotinib. Results: Anlotinib induces tumor cytotoxicity on refractory advanced NSCLC patients, NCI-H1975 derived xenograft models and lung adenocarcinoma cell lines. Transcriptome profiling revealed CCL2 blockade could be responsible for Anlotinib-induced anti-angiogenesis. NCI-H1975 derived xenograft model demonstrated Anlotinib-induced CCL2 blockade play an important role in anti-angiogenesis. Conclusions: This study not only offered the first evidence that Anlotinib inhibits angiogenesis via blocking CCL2 expression, but also provided a novel theoretical basis for the application of Anlotinib in advanced NSCLC patients.

2018-11-30 | E-MTAB-5997 | biostudies-arrayexpress

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