Expression Data from fracture calli of alpha-CGRP deficient mice
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ABSTRACT:
PROVIDER: PRJNA625491 | ENA |
REPOSITORIES: ENA
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Project description:alpha-CGRP is a neuropeptide that is also expressed in the fracture callus during bone regeneration. Our aim was to evaluate the role of alpha-CGRP in the context of fracture healing. Therefore we investigated the effect of alpha-CGRP deficiency on fracture callus formation. We used microarray analysis to compare the global gene expression of fracture calli from alpha-CGRP deficient mice and WT mice.
2020-09-02 | GSE148720 | GEO
Project description:Genome-wide comparative gene expression analysis of callus tissue of osteoporotic mice (Col1a1-Krm2 and Lrp5-/-) and wild-type were performed to identify candidate genes that might be responsible for the impaired fracture healing observed in Col1a1-Krm2 and Lrp5-/- mice. To investigate bone healing in osteoporosis, we performed fracture healing studies in wild-type mice (C57BL/6 genetic background) and the low bone mass strains Col1a1-Krm2 and Lrp5-/- (Schulze et al., 2010; Kato et al., 2002). Osteotomy was set in femora of female mice and stabilized by a semi-rigid fixator to allow fast bone healing (RM-CM-6ntgen et al., 2010). 21 days post surgery we analyzed the fracture calli by biochemical/histological methods, as well as micro-computed tomography, and observed impaired fracture healing in Col1a1-Krm2 and Lrp5-/- mice in comparison to wild-type. To identify genes that may be responsible for the impaired healing in osteoporotic mice, we performed microarray analysis of three independent callus samples of each genotype. The callus tissue was taken 10 days after surgery, because extensive bone formation took place at this point.
2013-10-25 | E-GEOD-51686 | biostudies-arrayexpress
Project description:Fracture healing is a process that involves many cell populations. In this study we characterized gene expression in a subset of cells involved in fracture healing. αSMACreERT2 mice crossed with Ai9 reporter mice that express tdTomato fluorescent protein after Cre-mediated activation were used as an experimental model. αSMA-expressing cells were labeled by tamoxifen administration, then periosteal cells from the tibia were isolated two days later (controls), or tibial fractures were performed and periosteum/soft callus tissue was collected after 2 and 6 days. The tdTomato positive cell population was isolated by flow cytometry, and subjected to microarray analysis. Histology and cell surface marker analysis indicates that αSMACreERT2 labels a mainly mesenchymal population in the periosteum that expands after fracture, and contributes to both osteogenic and chondrogenic elements of the fracture callus. We were therefore able to examine gene expression in a defined population during the early stages of fracture healing. Total RNA was obtained from the tomato positive cells within the periosteal compartment of fractures from αSMACreERT2/Ai9 mice. Control animals were given 2 doses of tamoxifen, and periosteum was collected and labeled cells sorted (8-9 sex-matched mice per group). Fractures were performed after the second dose of tamoxifen, and tomato positive cells from periosteum/callus tissue were isolated 2 and 6 days after fracture (4-8 animals per sample pooled). 3 replicates for each sample are included.
2013-11-27 | E-GEOD-45156 | biostudies-arrayexpress
Project description:Time-point expression analysis of fractures calluses at 1, 3, and 5 days post-fracture in young and old BALB/c mice. Femur fractures were generated on female c57BI6 mice in triplicate: 8 month old retired breeders (old mice) and 6 week old mice (young mice) were used. 1, 3, and 5 days post-fracture, fracture calluses were dissected and total RNA isolated. Expression profiling was performed using Affymetrix's Mouse Genome 430 2.0 array.
2009-09-01 | E-GEOD-17825 | biostudies-arrayexpress
Project description:To further understand the molecular complexity of fracture repair, we investigated miRNA profiling during the first 14 days post fracture. miRNA expression was investigated at post-fracture days 1, 3, 5, 7, 11, 14 as well as in intact (unfractured bone).
2016-04-05 | E-GEOD-76197 | biostudies-arrayexpress
Project description:Comprehensive transcriptional atlas of intestinal immune cells reveals that neuropeptide α-CGRP orchestrates ILC2 responses
| PRJNA514064 | ENA
Project description:Innate and adaptive lymphocytes work in concert to maintain tissue homeostasis and to mediate host defense at mucosal barriers. Herein, we used single cell analysis to show substantial diversity of gene expression in ILCs and T helper cells during a helminth infection in the lung. Notably, we found that the Calca gene, which is spliced to generate the neuropeptide CGRP, was selectively transcribed in ILC2s and Th2 cells in an activation dependent manner. The Calca locus acquired chromatin accessibility at the ILC2 precursor stage and is pre-programmed for rapid production of CGRP upon ILC2 activation. CGRP globally antagonized actions of neuromedin U (NMU) and the alarmin IL-33. However, CGRP selectively acted in concert with NMU and IL-33 to promote IL-5 expression, but not IL-13. The complex interplay among neuropeptides and alarmin fine-tunes type 2 immune responses and will undoubtedly become more relevant as therapeutic neuropeptide blockade advances in the clinic.
2019-06-25 | GSE131996 | GEO
Project description:Carotenoids have been demonstrated to be indispensable plant secondary metabolites that are involved in photosynthesis, antioxidation, and phytohormone biosynthesis. Carotenoids are likely involved in other biological functions that have yet to be discovered. In this study, we utilized genomic expression investigation to gain a deep insight into the carotenoid-related biological processes in the citrus calli overexpressing CrtB. Abortive ovule embryogenic calli from four citrus genotypes were used in this study. They were derived from Star Ruby grapefruit (C. paradise Macf.), Marsh grapefruit (C. paradise Macf.), and Sunburst mandarin [Citrus reticulata Blanco M-CM-^W (C. paradisi Macf. M-CM-^W C. reticulata)], designated as RB, M, and SBT, respectively. Engineered cell models (ECMs) were established by over-expressing 35S::CrtB (tpM-bM-^@M-^SrbcSM-bM-^@M-^SCrtB) [CrtB protein, phytoene synthase from Erwinia herbicola (now known as Pantoea agglomerans), containing a Pea rbcS transit peptide] in citrus embryogenic calli. Twenty-day-old calli were harvested and used for RNA extraction and hybridization on Affymetrix microarrays.
2014-09-23 | E-GEOD-61633 | biostudies-arrayexpress
Project description:Four days old rice calli were selected to grow 324h under spaceflight controls, 1g-flight controls and 1g-ground controls. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Rice calli were selected at different treatment for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain the diff-genes that caused by the microgravity.
2016-03-03 | E-GEOD-78839 | biostudies-arrayexpress
Project description:RNA-seq was used to assess gene expression variation in transgenic calli lines expressing Vitis vinifera chardonnay VvSWEET10 gene.
2019-05-29 | GSE124798 | GEO