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Retinal gene expression of low-density lipoprotein receptor-related protein 5 (Lrp5) knockout mice

ABSTRACT: Retinal gene expression was assessed from postnatal day (P) 8 old low-density lipoprotein receptor-related protein 5 (Lrp5) knockout mice with a Illumina mouse-WG6 expression BeadChip.

ORGANISM(S): Mus musculus

PROVIDER: GSE32145 | GEO | 2012/05/22

SECONDARY ACCESSION(S): PRJNA147657

REPOSITORIES: GEO

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Retinal gene expression of low-density lipoprotein receptor-related protein 5 (Lrp5) knockout mice

Project description:Retinal gene expression was assessed from postnatal day (P) 8 old low-density lipoprotein receptor-related protein 5 (Lrp5) knockout mice with a Illumina mouse-WG6 expression BeadChip. RNA was extracted from the retinas of P8 Lrp5 knockout and wild type mice (n=3 each group). Total RNA (1ug each) were reverse transcribed, followed by a single in vitro transcription amplification to incorporate biotin-labeled nucleotide, and subsequent hybridization and staining with strepatavidin-Cy3 according to the manufacturer’s instructions.

2012-05-21 | E-GEOD-32145 | biostudies-arrayexpress

Differential gene expression analysis of eys+/-; lrp5+/- zebrafish eye by microarray

Project description:Vision is essential for vertebrates including humans. Sustained vision is accomplished by retinoid metabolism, the ‘visual cycle’, where all-trans retinol (atROL) is incorporated into the retinal pigment epithelium (RPE) from photoreceptors presumably through decade-long missing receptor(s). Here, we show that the LDL-related receptor-5 (Lrp5) protein is linked to the retinol binding protein 1a (Rbp1a), the transporter of atROL in the visual cycle, by generating and analyzing the digenic eyes shut homolog+/-; lrp5+/- zebrafish, the same form of gene defect detected in a human case of inherited retinal degeneration. Global gene expression analysis followed by genetic study clarified that rbp1a played a role downstream of lrp5. Rbp1a protein was colocalized with Lrp5 protein at microvilli of RPE cells. Furthermore, Rbp1a directly bound to the C-terminal intracellular region of Lrp5 in vitro. Collectively, these results strongly suggest that Lrp5 is a potent candidate of the receptor of atROL in the visual cycle.

2020-12-01 | GSE160663 | GEO

Low-density lipoprotein receptor-5 contributes to whole body metabolism by regulating fatty acid metabolism in the osteoblast

Project description:Wnt signaling is critical for normal skeletal development as well as whole-body metabolic function. In this study, we described a previously unrecognized function for Wnt-Lrp5 signaling in the osteoblast that allows bone to acquire the resources necessary to fuel bone formation. Mice lacking the Lrp5 co-receptor specifically in osteoblasts and osteocytes exhibit the expected reductions in postnatal bone mass and also develop peripheral adiposity with corresponding reductions in energy expenditure. Conversely, mice expressing a high-bone mass mutant Lrp5 allele are leaner with reduced plasma triglyceride and free fatty acid levels. In this context, Wnt-initiated signals downstream of Lrp5, but not Lrp6, regulate the expression of key enzymes required for fatty acid β-oxidation. These results suggest that Wnt-Lrp5 signaling regulates basic cellular activities beyond those associated with fate-specification and differentiation in bone and that the skeleton influences global energy homeostasis via mechanisms independent of osteocalcin and glucose metabolism Total RNA isolated from cultures of Lrp5-deficient osteoblasts differentiated for 7 days in vitro compared to control osteoblasts

2014-03-14 | E-GEOD-55900 | biostudies-arrayexpress

Low-density lipoprotein receptor-5 contributes to whole body metabolism by regulating fatty acid metabolism in the osteoblast

2014-03-14 | GSE55900 | GEO

Retinal expression of Wnt-pathway mediated genes in low-density lipoprotein receptor-related protein 5 (Lrp5) knockout mice.

Project description: Not available

| S-EPMC3260226 | biostudies-literature

Expression Analysis of Mammary Epithelial Cells Isolated from 12-16 Week Old Virgin C57Bl6 Lrp5+/+ and Lrp5-/- Mice

Project description:Investigation of whole-genome gene expression level changes in C57Bl6 Lrp5-/- mammary epithelial cells, compared to the wild-type strain. The mammary epithelial cells were isolated from numbers 4 and 5 mammary glands. The Lrp5-/- mouse strain described in this study has been further described in Lindvall C, Evans NC, Zylstra CR, Li Y, Alexander CM, Williams BO. 2006. The Wnt signaling receptor Lrp5 is required for mammary ductal stem cell activity and Wnt1-induced tumorigenesis. J Biol Chem. 2006 Nov 17;281(46):35081-7. Epub 2006 Sep 13. PMID: 16973609. Mammary epithelial cells were isolated from 6 groups of Lrp5+/+ and 3 groups of Lrp5-/- mice. The isolated RNA was submitted to the Gene Expression Center, University of Wisconsin-Madison where it was labelled with Cy3. Labelled samples were submitted to Roche Nimblegen and were hybridized to Mus musculus 1-Plex arrays that represent 42,586 mouse genes.

2010-05-19 | E-GEOD-19228 | biostudies-arrayexpress

LRP5 and LRP6 are required for maintaining self-renewal and differentiation of hematopoietic stem cells

Project description:The canonical Wnt signaling pathway has been demonstrated as a critical role in the self-renewal, proliferation and differentiation of Hematopoietic Stem Cells (HSCs), but the functions are indeterminacy in adult HSCs since the different experimental systems using gain- or loss- functions mice models. Low-density lipoprotein receptor-related proteins 5 and 6 (LRP5 and LRP6) are important co-receptors in the canonical Wnt/β-catenin pathway. In this study, the knockout mice models were established for adult HSC investagation via conditional ablation of LRP5 and LRP6 in adult hematopoiesis by Vav-Cre Loxp system. We found the HSC numbers were diminished due to the decreased proliferation and cell cycle. To investigate the molecular mechanisms, RNA-seq was performed using HSC cells isolated from WT and dKO mice.

2018-12-31 | GSE122635 | GEO

Expression Analysis of Mammary Epithelial Cells Isolated from 12-16 Week Old Virgin C57Bl6 Lrp5+/+ and Lrp5-/- Mice

2009-12-01 | GSE19228 | GEO

Sex differences in the expression and function of hepatic very low-density lipoprotein receptor during protein deficiency in mice

Project description:Very low-density lipoprotein (VLDL) receptor (VLDLR), a member of the low-density lipoprotein receptor family, is responsible for VLDL uptake in peripheral tissues. We reported that significant increase in hepatic VLDLR levels following protein restriction in male mice does not contribute to hepatic fat accumulation, indicating that VLDLR may have hitherto unknown functions. Here, we used RNA-sequencing analysis of liver samples to analysis the effects of protein restriction on hepatic VLDLR in male and female mice.

2024-02-27 | GSE259313 | GEO

Transcriptome analysis of LRP5- and LRP6-depleted HCC38 cells.

Project description:In order to characterize the differences between the co-receptors LRP5 and LRP6, we have analyzed the transcriptome of HCC38 cells - a triple negative breast cancer cell line - 24, 48 and 72 hours following the depletion of LRP5 or LRP6 using siRNAs.

2018-06-06 | GSE109004 | GEO

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