Polycomb Repressive Complex 2 Is a Barrier to KRAS-Driven Inflammation and Epithelial-Mesenchymal Transition in Non-Small-Cell Lung Cancer Scientists showed that polycomb repressive complex 2 (PRC2) is a critical regulator of KRAS-driven non-small cell lung cancer progression. Modulation of PRC2 by either Ezh2 overexpression or Eed deletion enhances KRAS-driven adenomagenesis and inflammation, respectively. [Cancer Cell] Abstract | Graphical Abstract | Press Release MiR-215 Is Induced Post-Transcriptionally via HIF-Drosha Complex and Mediates Glioma-Initiating Cell Adaptation to Hypoxia by Targeting KDM1B The authors report that hypoxia-induced miR-215 is vital for reprograming glioma-initiating cells to fit the hypoxic microenvironment via suppressing the expression of an epigenetic regulator KDM1B and modulating activities of multiple pathways. [Cancer Cell] Abstract | Graphical Abstract Interactions between Adipocytes and Breast Cancer Cells Stimulate Cytokine Production and Drive Src/Sox2/miR-302b–Mediated Malignant Progression Investigators examined the effects of coculturing human-derived adipocytes with established and primary breast cancer cells on tumorigenic potential. Prolonged culture of cancer cells with adipocytes or cytokines increased the proportion of mammosphere-forming cells and of cells expressing stem-like markers in vitro. [Cancer Res] Abstract | Full Article Preferential Expression of Functional IL-17R in Glioma Stem Cells: Potential Role in Self-Renewal Researchers explored the potential direct impact of IL-17−IL-17R interaction in gliomas. Immunohistochemistry and flow cytometry analysis of 12 tumor samples obtained from patients with high grade gliomas revealed that a considerable population of cells in all malignant gliomas expressed IL-17RA, with remarkable co-expression of the glioma stem cell markers CD133, Nestin, and Sox2. [Oncotarget] Full Article A Disintegrin and Metalloproteinase Domain 17 Regulates Colorectal Cancer Stem Cells and Chemosensitivity Via Notch1 Signaling Investigators determined whether A disintegrin and metalloproteinase domain 17 regulates the cancer stem cell phenotype in colorectal cancer and elucidated the downstream signaling mechanism that mediates cancer stem-ness. [Stem Cells Transl Med] Abstract | Full Article Low Adherent Cancer Cell Subpopulations Are Enriched in Tumorigenic and Metastatic Epithelial-to-Mesenchymal Transition-Induced Cancer Stem-Like Cells Investigators demonstrated that trypsin-sensitive breast and colon cancer cells subpopulations show increased ALDH activity, higher ability to exclude Hoechst 33342, enlarged proportion of cells with a cancer stem-like cell phenotype and are enriched in sphere- and colony-forming cells in vitro. [Sci Rep] Full Article miR-137 Regulates the Tumorigenicity of Colon Cancer Stem Cells Through the Inhibition of DCLK1 A PCR-based microRNA (miRNA) profiling analysis of normal colon stem cell (NCSCs) and colon cancer stem cell (CSCs) identified miRNAs which regulate colon CSC properties. miRNA-137 (miR-137) expression was downregulated in the colon CSCs compared to NCSCs, while doublecortin-like kinase 1 (DCLK1) mRNA was highly expressed in the colon CSCs but low in the NCSCs. [Mol Cancer Res] Abstract Mucin 1-Mediated Chemo-Resistance in Lung Cancer Cells Researchers demonstrated that non-small cell lung cancers survive paclitaxel (PTX) treatment. The proportion of the cancer stem cell marker, aldehyde dehydrogenase-positive cells, and epithelial–mesenchymal transition signaling protein levels were elevated in PTX-resistant A549 cells. [Oncogenesis] Full Article Dnajb8, a Member of the Heat Shock Protein 40 Family Has a Role in the Tumor Initiation and Resistance to Docetaxel but Is Dispensable for Stress Response Scientists established Dnajb8 knockout renal cell carcinoma (RCC) line cells and analyzed the cells to confirm the function of Dnajb8 in RCC cancer stem-like cells/cancer-initiating cells. [PLoS One] Full Article |