Induced pluripotent stem cell-derived melanocyte precursor cells undergoing differentiation into melanocytes. 2019

Chieko Hosaka, and Makoto Kunisada, and Michiyo Koyanagi-Aoi, and Taro Masaki, and Chihiro Takemori, and Mariko Taniguchi-Ikeda, and Takashi Aoi, and Chikako Nishigori
Division of Dermatology, Department of Internal Related, Graduate School of Medicine, Kobe University, Kobe, Japan.

Induced pluripotent stem cell (iPSC) technology offers a novel approach for conversion of human primary fibroblasts into melanocytes. During attempts to explore various protocols for differentiation of iPSCs into melanocytes, we found a distinct and self-renewing cell lineage that could differentiate into melanocytes, named as melanocyte precursor cells (MPCs). The MPCs exhibited a morphology distinctive from that of melanocytes, in lacking either the melanosomal structure or the melanocyte-specific marker genes MITF, TYR, and SOX10. In addition, gene expression studies in the MPCs showed high-level expression of WNT5A, ROR2, which are non-canonical WNT pathway markers, and its related receptor TGFβR2. In contrast, MPC differentiation into melanocytes was achieved by activating the canonical WNT pathway using the GSK3β inhibitor. Our data demonstrated the distinct characteristic of MPCs' ability to differentiate into melanocytes, and the underlying mechanism of interfacing between canonical WNT signaling pathway and non-canonical WNT signaling pathway.

UI MeSH Term Description Entries
D008544 Melanocytes Mammalian pigment cells that produce MELANINS, pigments found mainly in the EPIDERMIS, but also in the eyes and the hair, by a process called melanogenesis. Coloration can be altered by the number of melanocytes or the amount of pigment produced and stored in the organelles called MELANOSOMES. The large non-mammalian melanin-containing cells are called MELANOPHORES. Melanocyte
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071679 Glycogen Synthase Kinase 3 beta A glycogen synthase kinase-3 type enzyme that functions in ENERGY METABOLISM; EMBRYONIC DEVELOPMENT; and NEUROGENESIS. It is also involved in PROTEIN BIOSYNTHESIS and regulates cell growth and proliferation as a component of the WNT SIGNALING PATHWAY and other signaling pathways. Certain polymorphisms in the GSK3B gene have been associated with PARKINSON DISEASE; ALZHEIMER DISEASE; and BIPOLAR DISORDER. GSK-3beta,GSK3B Protein,GSK3beta,GSK 3beta
D051153 Wnt Proteins Wnt proteins are a large family of secreted glycoproteins that play essential roles in EMBRYONIC AND FETAL DEVELOPMENT, and tissue maintenance. They bind to FRIZZLED RECEPTORS and act as PARACRINE PROTEIN FACTORS to initiate a variety of SIGNAL TRANSDUCTION PATHWAYS. The canonical Wnt signaling pathway stabilizes the transcriptional coactivator BETA CATENIN. Wingless Type Protein,Wnt Factor,Wnt Protein,Wingless Type Proteins,Wnt Factors,Factor, Wnt,Protein, Wingless Type,Protein, Wnt,Type Protein, Wingless
D057026 Induced Pluripotent Stem Cells Cells from adult organisms that have been reprogrammed into a pluripotential state similar to that of EMBRYONIC STEM CELLS. Human Induced Pluripotent Stem Cell,IPS Cell,IPS Cells,Induced Pluripotent Stem Cell,Fibroblast-Derived IPS Cells,Fibroblast-Derived Induced Pluripotent Stem Cells,Human Induced Pluripotent Stem Cells,hiPSC,Cell, Fibroblast-Derived IPS,Cell, IPS,Cells, Fibroblast-Derived IPS,Cells, IPS,Fibroblast Derived IPS Cells,Fibroblast Derived Induced Pluripotent Stem Cells,Fibroblast-Derived IPS Cell,IPS Cell, Fibroblast-Derived,IPS Cells, Fibroblast-Derived
D019070 Cell Lineage The developmental history of specific differentiated cell types as traced back to the original STEM CELLS in the embryo. Cell Lineages,Lineage, Cell,Lineages, Cell

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