Project description:Expression data from HepG2 cultured in 2D monolayer cultures and 3D Matrigel cultures We performed this study to understand differences in gene expression profiles of 2D and 3D HepG2 cultures
Project description:Reliable modelling of human stomach development and in vitro derivation of mature subsets of gastric epithelial cells has been challenging to achieve in 3D cultures. We derived fetal gastric organoid cultures from 8-20 post-conception week (PCW) stomachs, and post-natal controls from pediatric biopsies.
Project description:Three-Dimensional Organotypic Cultures Reshape the microRNAs Transcriptional Program in Breast Cancer Cells Three-dimensional (3D) cell cultures have several advantages over conventional monolayer two-dimensional (2D) cultures as they can better mimic tumor biology. This study delineated the changes in microRNA (miRNA) expression patterns of breast cancer cells cultured in 3D and 2D conditions. 3D organotypic cultures showed morphological changes such as cell–cell and cell–extracellular matrix interactions associated with a loss of polarity and reorganization on bulk structures in both basal Hs578T and luminal T47D breast cancer cells. Data indicate that down-regulated miRNAs in Hs578T 3D cultures, relative to the 2D condition, contribute to a positive regulation of biological processes such as response to hypoxia and focal adhesion, whereas over-expressed miRNAs were related to negative regulation of the cell cycle. Remarkably, the repro-gramming of miRNAs’ transcriptional profiles was accompanied by changes in the expression of key miRNA/mRNA coregulation networks, such as miR-935/HIF-1A, which correlated with the expression found in clinical breast tumors and predicted poor patient outcomes. These data have implications in our understanding of cancer biology and impact the miRNA/mRNA regulatory axes of cells grown in 3D cultures. Our data represent a guide for novel miRNA candidates for functional analysis, including the response to therapy and biomarker discovery in breast cancer.
Project description:During HIV-1 infection, iDCs contribute to mounting an immune response and to viral dissemination, however most of the studies addressing iDCs-HIV-1interactions have been performed in standard 2D suspension cultures which do not reflect the 3D architecture of tissues in vivo. To overcome this limitation and to understand the role that the 3D environemt has we studied iDC biology as well as iDC-HIV-1 functional interactions in 3D collagen matrix comparing 3D collagen cultures to standard 2D suspension cultures. We used microarray data to analyze how the 3D environment affects the expression profile of monocyte derived iDCs under basal condition, LPS stimulation and in response to HIV-1 infection