The epidermis is a self-renewing tissue, which provides a natural barrier between the organism and the environment. Our research focuses on the dynamic process by which the epidermis maintains the proper balance between proliferation and differentiation. Combining classical genetics and modern tools of genomics, we investigate and model in mice the function of novel genes important for in utero human epidermal development. We seek to answer fundamental questions about the mechanism by which these epidermal cells produce this barrier. Specifically, how do the cells in a developing baby initially construct this wall? In an adult, how are these cells able to respond to skin wounds and build a new wall? Since the cells are not only the bricks, but also the

Agency
National Institute of Health (NIH)
Institute
National Human Genome Research Institute (NHGRI)
Type
Intramural Research (Z01)
Project #
1Z01HG000180-02
Application #
6681678
Study Section
(GMBB)
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
2002
Total Cost
Indirect Cost
Name
Human Genome Research
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Choi, Yeon Sook; Cheng, Jun; Segre, Julie et al. (2008) Generation and analysis of Elf5-LacZ mouse: unique and dynamic expression of Elf5 (ESE-2) in the inner root sheath of cycling hair follicles. Histochem Cell Biol 129:85-94
Grice, Elizabeth A; Kong, Heidi H; Renaud, Gabriel et al. (2008) A diversity profile of the human skin microbiota. Genome Res 18:1043-50
de Guzman Strong, Cristina; Segre, Julia A (2008) Navigating the genome. J Cell Sci 121:921-3
Kharas, Michael G; Yusuf, Isharat; Scarfone, Vanessa M et al. (2007) KLF4 suppresses transformation of pre-B cells by ABL oncogenes. Blood 109:747-55
List, Karin; Currie, Brooke; Scharschmidt, Tiffany C et al. (2007) Autosomal ichthyosis with hypotrichosis syndrome displays low matriptase proteolytic activity and is phenocopied in ST14 hypomorphic mice. J Biol Chem 282:36714-23
Teng, Andy; Nair, Mahalakshmi; Wells, Julie et al. (2007) Strain-dependent perinatal lethality of Ovol1-deficient mice and identification of Ovol2 as a downstream target of Ovol1 in skin epidermis. Biochim Biophys Acta 1772:89-95
Feinberg, Mark W; Wara, Akm Khyrul; Cao, Zhuoxiao et al. (2007) The Kruppel-like factor KLF4 is a critical regulator of monocyte differentiation. EMBO J 26:4138-48
Segre, Julia A (2006) Epidermal barrier formation and recovery in skin disorders. J Clin Invest 116:1150-8
Djalilian, Ali R; McGaughey, David; Patel, Satyakam et al. (2006) Connexin 26 regulates epidermal barrier and wound remodeling and promotes psoriasiform response. J Clin Invest 116:1243-53
Segre, Julia A (2006) Epidermal differentiation complex yields a secret: mutations in the cornification protein filaggrin underlie ichthyosis vulgaris. J Invest Dermatol 126:1202-4

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