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Ribosome Profiling analysis of Follicular B (FoB) cells purified from WT, miR-17~92 transgenic and miR-17-92 tKO mice

ABSTRACT: We have generated a miR-17~92 transgene and fl/fl allele whose expression can be turned on and off conditionally by Cre recombinase. The mice were crossed to CD19-Cre mice to turn on and off the expression of miR-17~92 specifically in B cells and stimulated LPS/IL-4 for 25.5hr. tKO mice were generated in the miR-106a-363-/-;miR-106b-25-/- background, so that all three homologous cluster of miR-17~92 family miRNAs are deleted in B cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE83684 | GEO | 2017/03/08

SECONDARY ACCESSION(S): PRJNA326723

REPOSITORIES: GEO

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Follicular B (FoB) cells purified from miR-17-92 tKO mice

2014-04-01 | GSE56376 | GEO

Follicular B (FoB) cells purified from miR-17-92 tKO mice

Project description:We have generated a miR-17~92 fl/fl allele whose expression can be turned off conditionally by Cre recombinase in the miR-106a-363-/-;miR-106b-25-/- background. The mice were crossed to CD19-Cre mice to turn off the expression of miR-17~92 specifically in B cells. Follicular B(FoB) cells were purified from CD19-Cre;miR-17~92 fl/fl;miR-106a-363;miR-106b~25 mice (tKO1, tKO2, tKO3) and CD19-cre (Control1, Control2, Control3) by MACS depletion of cells positive for CD9, CD43, and CD93 (also known as AA4.1). The purity of follicular B cells was examined by flow cytometry and was greater than 95% for all samples. Total RNA was extracted using RNeasy kit (QIAGEN).

2014-04-01 | E-GEOD-56376 | biostudies-arrayexpress

Follicular B (FoB) cells purified from miR-17-92 tKO mice, stimulated with LPS/IL-4, 13.5hr

2014-04-01 | GSE56378 | GEO

Follicular B (FoB) cells purified from miR-17-92 tKO mice, stimulated with LPS/IL-4, 13.5hr

Project description:We have generated a miR-17~92 fl/fl allele whose expression can be turned off conditionally by Cre recombinase in the miR-106a-363-/-;miR-106b-25-/- background. The mice were crossed to CD19-Cre mice to turn off the expression of miR-17~92 specifically in B cells and stimulated LPS/IL-4 for 13.5hr. Follicular B(FoB) cells were purified from CD19-Cre;miR-17~92 fl/fl;miR-106a-363;miR-106b~25 mice (TKO1, TKO2, TKO3) and WT (WT1, WTl2, WT3) by MACS depletion of cells positive for CD9, CD43, and CD93 (also known as AA4.1). The purified B cells were stimulated with LPS/IL-4 for 13.5hr in B cell media. The purity of follicular B cells was examined by flow cytometry and was greater than 95% for all samples. Total RNA was extracted using RNeasy kit (QIAGEN).

2014-04-01 | E-GEOD-56378 | biostudies-arrayexpress

Follicular B (FoB) cells purified from miR-17-92 transgenic mice

2011-07-22 | GSE30877 | GEO

Follicular B (FoB) cells purified from miR-17-92 transgenic mice

Project description:We have generated a miR-17-92 transgenic allele (termed miR-17-92 Tg) whose expression can be turned on conditionally by Cre recombinase (Xiao et al, Nature Immunology, 9:405-14, 2008). The mice were crossed to CD19-Cre mice to turn on the transgene expression specifically in B cells. Follicular B(FoB) cells were purified from CD19-Cre;miR-17~92 Tg/Tg mice (FoBtg1, FoBtg2, FoBtg3) and miR-17~92 Tg/Tg mice (FoBwt1, FoBwt2, FoBwt3) by MACS depletion of cells positive for CD5, CD43, and CD93 (also known as AA4.1). The purity of follicular B cells was examined by flow cytometry and was greater than 95% for all samples. Total RNA was extracted using RNeasy kit (QIAGEN).

2011-07-21 | E-GEOD-30877 | biostudies-arrayexpress

miR-17-92/106b regulate beta cell mitotic checkpoint and insulin secretion

Project description:Adult beta cells in the pancreas are the sole source of insulin in our body. Beta cell loss or increased demand for insulin, impose metabolic challenges because adult beta cells are generally quiescent and infrequently re-enter the cell division cycle. miR-17-92/106b is a family of proto-oncogene microRNAs, that regulate proliferation in normal tissues and in cancer. Here, we employ mouse genetics to demonstrate a critical role for miR-17-92/106b in glucose homeostasis and in controlling insulin secretion. Mass spectrometry analysis was performed on miR-17-92LoxP/LoxP;106-25-/- MEF lysate, without or with CRE-Adenovirus. miR-17-92LoxP/LoxP;106-25+/+ MEFs with GFP-Adenovirus served as controls. We demonstrate that miR-17-92/106b regulate the adult beta cell mitotic checkpoint and that miR-17-92/106b deficiency results in reduction in beta cell mass in-vivo. Furthermore, protein kinase A (PKA) is a new relevant molecular pathway downstream of miR-17-92/106b in control of adult beta cell division and glucose homeostasis. Therefore, contributes to the understanding of proto-oncogene miRNAs in the normal, untransformed endocrine pancreas, and illustrates new genetic means for regulation of beta cell mitosis and function by non-coding RNAs.

2019-06-17 | PXD012610 | Pride

Follicular B (FoB) cells purified from miR-17-92 transgenic mice, stimulated with LPS/IL-4 for 13.5 or 25.5 hours

2014-04-01 | GSE56377 | GEO

Follicular B (FoB) cells purified from miR-17-92 transgenic mice, stimulated with LPS/IL-4 for 13.5 or 25.5 hours

Project description:We have generated a miR-17-92 transgenic allele (termed miR-17-92 Tg) whose expression can be turned on conditionally by Cre recombinase (Xiao et al, Nature Immunology, 9:405-14, 2008). The mice were crossed to CD19-Cre mice to turn on the transgene expression specifically in B cells. Follicular B(FoB) cells were purified from CD19-Cre;miR-17~92 Tg/Tg mice (TG1, TG2, TG3) and miR-17~92 Tg/Tg mice (WT1, WT2, WT3) by MACS depletion of cells positive for CD5, CD43, and CD93 (also known as AA4.1). The purified B cells were stimulated with LPS/IL-4 for 13.5hr or 25.5hr. The purity of follicular B cells was examined by flow cytometry and was greater than 95% for all samples. Total RNA was extracted using RNeasy kit (QIAGEN).

2014-04-01 | E-GEOD-56377 | biostudies-arrayexpress

Oncogenic biogenesis of pri-miR-17~92

Project description:The microRNAs encoded by the miR-17~92 polycistron are commonly overexpressed in cancer and orchestrate a wide range of oncogenic functions. Here, we identify a novel mechanism for miR-17~92 oncogenic function through the disruption of endogenous miRNA processing. We show that upon oncogenic overexpression of the miR-17~92 primary transcript (pri-miR-17~92), the Microprocessor complex remains associated with partially processed intermediates that aberrantly accumulate. These intermediates reflect a series of hierarchical and conserved steps in the early processing of the pri-miR-17~92 transcript. Encumbrance of the Microprocessor by miR-17~92 intermediates leads to the broad, but selective, downregulation of co-expressed polycistronic miRNAs, including miRNAs derived from tumour suppressive miR-34b/c, and from the Dlk1-Dio3 polycistrons. We propose that the newly identified steps of polycistronic miR-17~92 biogenesis contribute to the oncogenic re-wiring of gene regulation networks. Our results reveal new functional paradigms for polycistronic miRNAs in cancer.

2019-05-20 | GSE130282 | GEO

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