Project description:We have shown that removal of Lkb1 in chondorcytes results in enchondroma-like structure in postnatal mouse long bones. To furhter understand the role of Lkb1 in this process, we performed microarrrays to compare the transcriptional profile between control and conditional Lkb1 mutant (Col2a1-Cre; Lkb1c/c) chondrocytes. Postnatal day 30 mouse growth plate chondorcytes from control and mutant mouse femurs and tibiae were isolated for RNA extraction and hybridization on Affymetrix microarrays.
Project description:We have shown that removal of Lkb1 in chondorcytes results in enchondroma-like structure in postnatal mouse long bones. To furhter understand the role of Lkb1 in this process, we performed microarrrays to compare the transcriptional profile between control and conditional Lkb1 mutant (Col2a1-Cre; Lkb1c/c) chondrocytes.
Project description:Osteogenesis Imperfecta is characterized by short stature however the cellular mechanisms behind this phenotype are unclear. We isolated tibial and femoral cartilage growth plate chondrocytes from postnatal day 5 wild type and Aga2 (a model of OI) mice and analyzed differential expression patterns using single cell RNA-seq
Project description:Longitudinal bone growth depends upon the execution of an intricate series of cellular activities by epiphyseal growth plate chondrocytes. In order to better understand these coordinated events, microarray analysis was used to compare gene expression in chondrocytes isolated from the proliferative and hypertrophic zones of the avian growth plate. In this experiment we compared pooled samples of proliferative and hypertrophic chondrocytes isolated from the chick growth plate. The expression of 745 genes was found to differ 3-fold or greater at the 0.05 level of probability.
Project description:Human growth plate chondrocytes were isolated from the distal femoral growth plate from a single adolescent undergoing epiphysiodesis. Cell were isolated and grown in monolayers, long term. Cells were replated and cultured in 0.5% or 20% serum. Keywords: parallel sample
Project description:Human growth plate chondrocytes were isolated from the distal femoral growth plate from 3 different adolescents undergoing epiphysiodesis. Cell were isolated and grown in monolayers, long term, in 20% serum. Cells were replated and cultured 48 h in 0.5% serum. Keywords: repeat sample
Project description:Longitudinal bone growth depends upon the execution of an intricate series of cellular activities by epiphyseal growth plate chondrocytes. In order to better understand these coordinated events, microarray analysis was used to compare gene expression in chondrocytes isolated from the proliferative and hypertrophic zones of the avian growth plate. In this experiment we compared pooled samples of proliferative and hypertrophic chondrocytes isolated from the chick growth plate. The expression of 745 genes was found to differ 3-fold or greater at the 0.05 level of probability. Experiment Overall Design: We examined 8 samples using arrays: 4 from proliferative and 4 from hypertrophic chondrocytes.
Project description:To study the role of Nox2 in ethanol toxicity on the bone growth plate chondrocytes, we generated Nox2 conditional knockout mice (CKO), in which the catalytic subunit of Nox2, Cybb, is deleted in chondrocytes using a Cre-lox system, where Cre is expressed from the Col2a1 promoter. CKO mice and floxed control mice were fed an ethanol-containing Lieber De-Carli-based diet or pair-fed a control diet for 8 weeks starting at 5-6 weeks of age. As both the Nox2 genotype and ethanol diminished the number of chondrocytes in the growth plates, we conducted an RNA-Seq analysis of the growth-plate containing regions of the femurs.
Project description:The aim of the current study was to identify molecular markers for articular cartilage that can be used for the quality control of tissue engineered cartilage. Therefore a genom-wide expression analysis was performed using RNA isolated from articular and growth plate cartilage, both extracted from the knee joints of minipigs. Keywords: Native material or primary cells isolated from articular cartilage and growth plate cartilage Articular and growth plate cartilage were taken for RNA extraction and hybridization on Affymetrix microarrays. Furthermore chondrocytes from each type of cartilage were isolated and cell culture was started and terminated at day 10 or day 20. Total RNA from cultivated cells was extracted, and hybridization on Affymetrix microarrays was performed.
