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HIPSTR lncRNA knockdown in HEK293 and H1BP cells

ABSTRACT: Compared to mRNAs, lncRNAs display higher developmental stage-, tissue-, and cell-subtype-specificity of expression, and are generally less abundant in a population of cells. Here, we identify HIPSTR (Heterogeneously expressed from the Intronic Plus Strand of the TFAP2A-locus RNA), a novel lncRNA gene in the developmentally regulated TFAP2A locus. HIPSTR has evolutionarily conserved expression patterns, its promoter is most active in undifferentiated cells, and depletion of HIPSTR in HEK293 and in pluripotent H1BP cells predominantly affects the genes involved in early organismal development and cell differentiation. HIPSTR is specifically induced and heterogeneously expressed in the 8-cell-stage human embryos during the major wave of embryonic genome activation. We systematically explore the phenomenon of cell-to-cell variation of gene expression and link it to low population-level expression of lncRNAs, showing that, similar to HIPSTR, the expression of thousands of lncRNAs is more highly heterogeneous than the expression of mRNAs in the individual, otherwise indistinguishable cells of totipotent human embryos, primordial germ cells, and stable cell lines. In these series of microarray experiments we evaluate genome-wide gene expression changes after knockdown of HIPSTR lncRNA in HEK293 and H1BP cells. Refer to individual Series

ORGANISM(S): Homo sapiens

SUBMITTER: Sergio Verjovski-Almeida

PROVIDER: E-GEOD-77937 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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HIPSTR lncRNA knockdown in HEK293 cells

Project description:HIPSTR is a conserved lncRNA that is transcribed antisense to TFAP2A gene. Unlike previously reported antisense lncRNAs, HIPSTR expression does not correlate with the expression of its antisense counterpart. HIPSTR depletion in HEK293 and H1BP cells predominantly affects genes involved in early organismal development and cell differentiation. HEK293 cells were transfected with antisense oligonucleotides (ASOs) targeting HIPSTR (ASO #1 or ASO #2) or control scrambled ASO (ASO CTL); transfection with each ASO was done in triplicate.

2016-09-08 | E-GEOD-77935 | biostudies-arrayexpress

HIPSTR lncRNA knockdown in H1BP cells

Project description:HIPSTR is a conserved lncRNA that is transcribed antisense to TFAP2A gene. Unlike previously reported antisense lncRNAs, HIPSTR expression does not correlate with the expression of its antisense counterpart. HIPSTR depletion in HEK293 and H1BP cells predominantly affects genes involved in early organismal development and cell differentiation. H1BP cells were transfected with antisense oligonucleotides (ASOs) targeting HIPSTR (ASO #0, ASO #1 or ASO #2) or control scrambled ASO (ASO CTL); transfections with each targeting ASO were done in duplicate, transfections with control ASO were done in triplicate.

2016-09-08 | E-GEOD-77936 | biostudies-arrayexpress

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Project description:Long non-coding RNAs (lncRNAs) play important roles in the regulation of many biological processes in the cell like transcription, translation, splicing, transport, etc. More than 10K lncRNAs are predicted in human, but functions for the majority remain unknown. LncRNAs may contribute to the development of multiple diseases that makes them perspective diagnostic and prognostic markers as well as drug targets [1]. Murine lncRNA Falcor/LL35 is a proposed functional analog of human lncRNA DEANR1, which is predominantly expressed in murine lungs and liver, intestine and pancreas [2, 3]. While the participation of LL35 in LL35–Foxa2 (transcription factor) regulatory loop during regeneration after lung injury was previously described by Swarr et al. [2], its functional role in murine liver remains unknown. In our work we focused on revealing the role of murine lncRNA LL35 in hepatocytes and in mouse liver. We analyzed changes in proteome of AML12 (normal hepatocytes) cell line on the 2nd day after LL35 depletion. [1] Morlando, M., Ballarino, M., & Fatica, A. (2015). Long non-coding RNAs: New players in hematopoiesis and leukemia. Frontiers in Medicine, Vol. 2. [2] Swarr, D. T., Herriges, M., Li, S., Morley, M., Fernandes, S., Sridharan, A., … Morrisey, E. E. (2019). The long noncoding RNA Falcor regulates Foxa2 expression to maintain lung epithelial homeostasis and promote regeneration. Genes & Development, 33(11-12), 656–668. [3] Sergeeva, O. V, Korinfskaya, S. A., Kurochkin, I. I., & Zatsepin, T. S. (2019). Long Noncoding RNA LL35 / Falcor Regulates Expression of Transcription Factor Foxa2 in Hepatocytes in Normal and Fibrotic Mouse Liver. Acta Naturae, 11(42), 66–74.

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HIPSTR lncRNA knockdown in HEK293 and H1BP cells

Project description:Compared to mRNAs, lncRNAs display higher developmental stage-, tissue-, and cell-subtype-specificity of expression, and are generally less abundant in a population of cells. Here, we identify HIPSTR (Heterogeneously expressed from the Intronic Plus Strand of the TFAP2A-locus RNA), a novel lncRNA gene in the developmentally regulated TFAP2A locus. HIPSTR has evolutionarily conserved expression patterns, its promoter is most active in undifferentiated cells, and depletion of HIPSTR in HEK293 and in pluripotent H1BP cells predominantly affects the genes involved in early organismal development and cell differentiation. HIPSTR is specifically induced and heterogeneously expressed in the 8-cell-stage human embryos during the major wave of embryonic genome activation. We systematically explore the phenomenon of cell-to-cell variation of gene expression and link it to low population-level expression of lncRNAs, showing that, similar to HIPSTR, the expression of thousands of lncRNAs is more highly heterogeneous than the expression of mRNAs in the individual, otherwise indistinguishable cells of totipotent human embryos, primordial germ cells, and stable cell lines. In these series of microarray experiments we evaluate genome-wide gene expression changes after knockdown of HIPSTR lncRNA in HEK293 and H1BP cells.

2016-09-08 | GSE77937 | GEO

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