Project description:To elucidate functions of CDCP1, KDM3B and SDC1 molecules in HS5 human marrow stromal cells, global gene expression profiles were obtained and analyzed after knocking down the gene transcripts by using siRNA technology. Global gene expression profiles were obtained from HS5 marrow stromal cells after knocking down mRNA of CDCP1, KDM3B or SDC1 by using siRNA technology.
Project description:To elucidate functions of CDCP1, KDM3B and SDC1 molecules in HS5 human marrow stromal cells, global gene expression profiles were obtained and analyzed after knocking down the gene transcripts by using siRNA technology.
Project description:Circulating tumor cells (CTCs) and disseminated tumour cells with mesenchymal traits are difficult to detect by epithelial marker proteins. Particularly, triple negative breast cancers (TNBC) that are prone to therapy failure release a subpopulation of circulating tumour cells (CTCs) with mesenchymal traits. To provide tools that support their detection and analysis, the cell line BC-M1 established from disseminated tumour cells in the bone marrow of a breast cancer patient and a bone metastasis subline of MDA-MB-231 were analysed. Mass spectrometry analysis revealed high levels of CUB domain-containing protein 1 (CDCP1) in BC-M1. CDCP1 was found in other carcinoma cell lines (MDA-MB-231, MDA-MB-468) and other DTC cell lines (LC-M1, PC-E1) as well. Peripheral blood mononuclear cells were virtually negative for CDCP1 by Western Blot and immunofluorescent staining. Presence of CDCP1 in CTCs was confirmed by CellSearch. Here, CDCP1 positive CTCs were detected in eight of 30 analysed breast cancer patients. For the isolation of CTCs from the blood of breast cancer patients, we established a sandwich magnetic-activated cell sorting (MACS). The extracellular domain of CDCP1 served for cell catching and the cytoplasmic domain of CDCP1 for immunofluorescent detection of CDCP1 in CTCs. We showed that the MACS approach is suitable for the isolation of EpCam/keratin negative breast cancer cells from the blood and isolated CDCP1 positive CTCs from breast cancer patients by MACS. Hence, our approach is particularly suited for the detection and isolation of CTCs from TNBC when low EpCam or keratin levels limit the application of conventional approaches.
Project description:Global expression profile of human osteoblast treated with chemotherapy-treated bone marrow stromal cell conditioned media, compared to human osteoblast cells treated with diluent-control bone marrow stromal cell conditioned media. Goal is to identify genes regulated by chemotherapy in osteoblasts.
Project description:CDCP1 and PLAGL2 have been shown to act as oncogenes in several cancer types but little is known about the molecular signalling underlying these processes in ovarian cancer cells. In this study we aim to find the downstream signalling upon their individual silencing in the human ovarian cancer cell line SKOV3. We used microarrays to detail the global programme of gene expression underlying CDCP1 and PLAGL2 signalling in the human ovarian cancer cell line SKOV3
Project description:Global gene expression analysis of (a) human embryonic stem cells, (b) adult fibroblasts with and without nucleofection of SOKM, (c) CD34+ cord blood cells at various time points during induction of pluripotency with SOKM, with or without co-culture with bone marrow stromal cells (BMSC), and (d) resulting stromal primed and non-stromal primed cord blood CD34+ myeloid iPSC
Project description:Analysis of Foxd3-regulation of self-renewal and quiescence in CDCP1+CSCs at gene expression level. The hypothesis tested in the present study was that the Foxd3 global developmental regulator serves a critical role to support the self-renewal of CDCP1+CSCs as one of few known factors involved in maintaining their quiescence. Results provide important information of the response of colorectal CDCP1+CSCs to depletion of Foxd3, such as genes involved in regulation of cell cycle, cell proliferation, and stem-like properties.
