SOX2 Is a Cancer-Specific Regulator of Tumor Initiating Potential in Cutaneous Squamous Cell Carcinoma Researchers show that the transcription factor ​Sox2, which is not expressed in normal skin epithelium and is dispensable for epidermal homeostasis, marks tumor initiating cells in cutaneous squamous cell carcinomas. [Nat Commun] Abstract 5-Lipoxygenase Is a Candidate Target for Therapeutic Management of Stem Cell-Like Cells in Acute Myeloid Leukemia Scientists found that pharmacological inhibition of 5-lipoxygenase interfered strongly with the aberrant stem cell capacity of PML/RARα-expressing hematopoietic stem and progenitor cells. [Cancer Res] Abstract | Press Release Dynamics of Leukemia Stem-Like Cells Extinction in Acute Promyelocytic Leukemia Researchers investigated the dynamics of acute promyelocytic leukemia before and during therapy with regard to disease initiation, progression and therapeutic response. [Cancer Res] Abstract A Distinct DNA Methylation Signature Defines Breast Cancer Stem Cells and Predicts Cancer Outcome Scientists used a whole genome promoter microarray to establish the DNA methylation portraits of breast cancer stem cells (bCSC) and non-bCSCs. [Stem Cells] Abstract The Sonic Hedgehog Signaling Pathway Maintains the Cancer Stem Cell Self-Renewal of Anaplastic Thyroid Cancer by Inducing Snail Expression Researchers used two anaplastic thyroid cancer cell lines as a model to study the role of the sonic hedgehog pathway in maintaining thyroid cancer stem cells self-renewal and to understand its underlying molecular mechanisms. [J Clin Endocrinol Metab] Abstract Adult Mouse Subventricular Zones Stimulate Glioblastoma Stem Cells Specific Invasion through CXCL12/CXCR4 Signaling Researchers questioned the role of the CXCL12/CXCR4 signaling in the glioblastoma stem cell-specific invasion of the subventricular zones. [Neuro Oncol] Abstract Caveolin-1 Mediates Chemoresistance in Breast Cancer Stem Cells via β-Catenin/ABCG2 Signaling Pathway Caveolin-1 silencing sensitized breast cancer stem cells (CSCs) by limiting their self-renewal ability but promoting the differentiation process. β-catenin silencing prevented the enhanced chemoresistance of CSCs induced by caveolin-1 overexpression, indicating that β-catenin is an essential molecule responsible for caveolin-1-mediated action. [Carcinogenesis] Abstract The IL-8/CXCR1 Axis Is Associated with Cancer Stem Cell-Like Properties and Correlates with Clinical Prognosis in Human Pancreatic Cancer Cases Functional studies confirmed that IL-8 addition increased sphere formation, cancer stem cell populations, and cell invasion of pancreatic cancer cells and that these effects could be reversed by antagonizing CXCR1 with a CXCR1-specific antibody. [Sci Rep] Full Article Excessive Hyaluronan Production Promotes Acquisition of Cancer Stem Cell Signatures through the Coordinated Regulation of Twist and the TGF-β-Snail Signaling Axis Scientists hypothesize that hyaluronan overproduction may accelerate cancer progression by expanding cancer stem cell (CSC) subpopulations during cancer development. Flow cytometric analysis demonstrated the enrichment of CD44high/CD24low CSC-like cells in the side population fraction of hyaluronan overproducing cancer cells. [J Biol Chem] Abstract | Full Article MicroRNA-9 Is Associated with Epithelial-Mesenchymal Transition, Breast Cancer Stem Cell Phenotype, and Tumor Progression in Breast Cancer Researchers evaluated the expression levels of microRNAs in human breast cancer samples and analyzed their relationship with clinicopathologic features of the tumor including breast cancer subtype, epithelial-mesenchymal transition, breast cancer stem cell phenotype, and prognosis. [Breast Cancer Res Treat] Abstract  |