Dermal Cell News Volume 1.18 | Sep 28 2015

Differential Features Between Chronic Skin Inflammatory Diseases Revealed in Skin-Humanized Psoriasis and Atopic Dermatitis Mouse Models
The authors described and characterized an animal model for atopic dermatitis using similar bioengineered-based approaches, by intradermal injection of human T helper type 2 lymphocytes in regenerated human skin after partial removal of stratum corneum. [J Invest Dermatol] Abstract

Hypermethylation of the Keap1 Gene Inactivates Its Function, Promotes Nrf2 Nuclear Accumulation, and Is Involved in Arsenite-Induced Human Keratinocyte Transformation
By establishing transformed human keratinocyte cells via chronic arsenite treatment, researchers observed a continuous reduction in reactive oxygen species levels and enhanced levels of nuclear factor E2-related factor 2 (Nrf2) and its target antioxidant enzymes in the later stage of arsenite-induced cell transformation. [Free Radic Biol Med] Abstract

Hair Follicle and Interfollicular Epidermal Stem Cells Make Varying Contributions to Wound Regeneration
By comparing the fates of several keratinocyte lineages, scientists observed an initial decrease in both hair follicle- and interfollicular epidermis-derived cells within the transient acanthotic layers of the regenerating epithelium. [Cell Cycle] Abstract

The Proteasome Immunosubunits, PA28 and ER-Aminopeptidase 1 Protect Melanoma Cells from Efficient MART-126-35 Specific T-Cell Recognition
Researchers demonstrated that the IFN-γ-inducible proteasome subunit β2i/MECL-1, proteasome activator PA28 and ER-resident aminopeptidase ERAP1 impair MART-1_26-35 epitope generation. [Eur J Immunol] Abstract

The Wound Healing and Antibacterial Activity of Five Ethnomedical Calophyllum inophyllum Oils: An Alternative Therapeutic Strategy to Treat Infected Wounds
Using cell and bacteria cultures, investigators confirmed the pharmacological effects of Calophyllum inophyllum oil (CIO) as wound healing and antimicrobial agent. They showed that the concentration of CIO needed to exhibit therapeutic effects are lower than concentrations exhibiting cytotoxic effects in vitro. [PLoS One] Full Article

Pharmacological Activation of Estrogen Receptors-α and -β Differentially Modulates Keratinocyte Differentiation with Functional Impact on Wound Healing
Investigators revealed that the HaCaT keratinocytes expressed both estrogen receptor (ER)-α and ‑β, and thus are well-suited for studying the effects of ER agonists on epidermal regeneration. [Int J Mol Med]
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SKIN CANCERS & DISORDERS

GLUT10 Deficiency Leads to Oxidative Stress and Non-Canonical αvβ3 Integrin-Mediated TGFβ Signaling Associated with Extracellular Matrix Disarray in Arterial Tortuosity Syndrome Skin Fibroblasts
To discern the molecular mechanisms underlying the arterial tortuosity syndrome etiology, scientists performed gene expression profiling and biochemical studies on skin fibroblasts. Transcriptome analyses revealed the dysregulation of several genes involved in TGFβ signaling and extracellular matrix homeostasis as well as the perturbation of specific pathways that control both the cell energy balance and the oxidative stress response. [Hum Mol Genet] Abstract | Graphical Abstract

Lysyl Hydroxylase 3 Localizes to Epidermal Basement Membrane and Is Reduced in Patients with Recessive Dystrophic Epidermolysis Bullosa
The authors identified a significant decrease in PLOD3 expression and its encoded protein, the collagen modifying enzyme lysyl hydroxylase 3, in recessive dystrophic epidermolysis bullosa. [PLoS One] Full Article

A Novel Adamantyl Benzylbenzamide Derivative, AP736, Inhibits Melanogenesis in B16F10 Mouse Melanoma Cells via Glycogen Synthase Kinase 3β Phosphorylation
The authors investigated the novel candidate compound, AP736 (an adamantyl benzylbenzamide derivative), and its effects on melanogenesis in B16F10 melanoma cells, as well as the mechanisms involved. [Int J Mol Med] Abstract

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Cornell Dots Research Collaboration Leads to $10M Cancer Center
Cornell University, in partnership with Memorial Sloan Kettering Cancer Center, is opening a new $10 million Center of Cancer Nanotechnology Excellence that brings together scientists, engineers, biologists and physicians to develop and translate new cancer care applications based on nanotechnology. [Cornell University] Press Release

Caladrius Biosciences Receives Award from the National Cancer Institute
Caladrius Biosciences, Inc. announced that it has received a $300,000 contract from the National Institutes of Health’s National Cancer Institute to wholly fund the first phase of a project for process optimization of its therapeutic agent targeting tumor-initiating cells. [Caldrius Biosciences, Inc.] Press Release

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NEW Assistant Professor – Stem Cell Biology (University of South Carolina)

Senior Stem Cell Scientist (Medicines and Healthcare products Regulatory Agency)

Professor – Dermatology and Venerology (University of Munster)

Postdoctoral Fellow – Cancer Genetics (Feinberg School of Medicine)

Postdoctoral Fellow – HMGA Chromatin Remodeling Proteins in Cancer and Stem Cell Biology (Johns Hopkins University School of Medicine)

Postdoctoral Scientist – Skin Microbiome (National Human Genome Research Institute)

Assistant Professor – Cell Biology or Molecular and Cellular Mechanisms (Washington University School of Medicine)

PhD Position – Materials Engineering (IFP Energies Nouvelles)

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