Conversion of Human Fibroblasts to Angioblast-Like Progenitor Cells Researchers report the development of a reprogramming methodology in which cells transition through a plastic intermediate state induced by brief exposure to reprogramming factors followed by differentiation. [Nat Methods] Abstract | Press Release Generation of Integration-Free Neural Progenitor Cells from Cells in Human Urine Scientists combined an episomal system to deliver reprogramming factors with a chemically defined culture medium to reprogram epithelial-like cells from human urine into neural progenitor cells. Although functional in vivo analysis is still needed, they reported that the cells survive and differentiate upon transplant into newborn rat brain. [Nat Methods] Abstract | Press Release In Vivo Generation of Transplantable Human Hematopoietic Cells from Induced Pluripotent Stem Cells Researchers report a novel in vivo system in which human induced pluripotent stem cells differentiate within teratomas to derive functional myeloid and lymphoid cells. Similarly, hematopoietic stem/progenitor cells can be isolated from teratoma parenchyma and reconstitute a human immune system when transplanted into immunodeficient mice. [Blood] Abstract Integration-Free Induced Pluripotent Stem Cells Model Genetic and Neural Developmental Features of Down Syndrome Etiology To assess the ability of induced pluripotent stem cells (iPSCs) to model Down syndrome (DS) phenotypes, as a prototypical complex human disease, researchers generated bona-fide DS and wild-type non-viral iPSCs by episomal reprogramming. [Stem Cells] Abstract Conditional Induction of Math1 Specifies Embryonic Stem Cells to Cerebellar Granule Neuron Lineage and Promotes Differentiation into Mature Granule Neurons Results showed that conditional induction of Math1 drives embryonic stem (ES) cells toward the cerebellar fate and indicated that acting on both intrinsic and extrinsic factors is a powerful means to modulate ES cells’ differentiation and maturation into a specific neuronal lineage. [Stem Cells] Abstract Reprogramming to Pluripotency Is an Ancient Trait of Vertebrate Oct4 and Pou2 Proteins Investigators reported that different vertebrate Pou2 and Oct4 homologues can induce pluripotency in mouse and human fibroblasts and that the inability of zebrafish Pou2 to establish pluripotency is not representative of all Pou2 genes, as medaka Pou2 and axolotl Pou2 are able to reprogram somatic cells into pluripotent cells. [Nat Commun] Abstract Prevention of β-Amyloid Induced Toxicity in Human iPS Cell-Derived Neurons by Inhibition of Cyclin-Dependent Kinases and Associated Cell Cycle Events Researchers used neurons with forebrain marker expression from two unrelated human induced pluripotent stem (hiPS) cell lines. As both populations of neurons were vulnerable to β-amyloid 1-42 (Aβ1-42) aggregates, a hallmark of Alzheimer’s disease pathology, the authors used them to investigate cellular mediators of Aβ1-42 toxicity. [Stem Cell Res] Abstract | Press Release Differentiation of Reprogrammed Mouse Cardiac Fibroblasts into Functional Cardiomyocytes Scientists examined if functional cardiomyocytes can be produced from mouse cardiac fibroblasts, using induced pluripotent stem cell factor-based reprogramming. [Cell Biochem Biophys] Abstract | Full Article T Lymphocyte Potential Marks the Emergence of Definitive Hematopoietic Progenitors in Human Pluripotent Stem Cell Differentiation Cultures Researchers used T lymphocyte potential to track the onset of definitive hematopoiesis from human embryonic and induced pluripotent stem cells differentiated with specific morphogens in serum- and stromal-free cultures. [Cell Rep] Abstract | Graphical Abstract  |