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| Late cornified envelope family in differentiating epithelia - Response to calcium and ultraviolet irradiation |
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| Author(s): Jackson B, Tilli CMLJ, Hardman MJ, Avilion AA, MacLeod MC, Ashcroft GS, Byrne C |
| Source: JOURNAL OF INVESTIGATIVE DERMATOLOGY Volume: 124 Issue: 5 Pages: 1062-1070 Published: MAY 2005 |
| Times Cited: 16 References: 38 |
| Abstract: The late cornified envelope (LCE) gene cluster within the epidermal differentiation complex on human chromosome one (mouse chromosome three) contains multiple conserved genes encoding stratum-corneum proteins. Within the LCE cluster, genes form "groups" based on chromosomal position and protein homology. We link a recently accepted nomenclature for the LCE cluster (formerly XP5, small proline-rich-like, late-envelope protein genes) to gene structure, groupings, and chromosomal organization, and carry out a pan-cluster quantitative expression analysis in a variety of tissues and environmental conditions. This analysis shows that (i) the cluster organizes into two "skin" expressing groups and a third group with low-level, tissue-specific expression patterns in all barrier-forming epithelia tested, including internal epithelia; (ii) LCE genes respond "group-wise" to environmental stimuli such as calcium levels and ultraviolet (UV) light, highlighting the functional significance of groups; (iii) in response to UV stimulation there is massive upregulation of a single, normally quiescent, non-skin LCE gene; and (iv) heterogeneity occurs between individuals with one individual lacking expression of an LCE skin gene without overt skin disease, suggesting LCE genes affect subtle attributes of skin function. This quantitative and pan-cluster expression analysis suggests that LCE groups have distinct functions and that within groups regulatory diversification permits specific responsiveness to environmental challenge. |
| Document Type: Article |
| Language: English |
| Reprint Address: Byrne, C (reprint author), Univ London, Queen Mary Sch Med & Dent, Inst Cell & Mol Sci, London E1 2AT, England |
Addresses:
1. Univ London, Queen Mary Sch Med & Dent, Inst Cell & Mol Sci, London E1 2AT, England
2. Univ Manchester, Fac Life Sci, Manchester, Lancs England
3. Univ London, Canc Res UK Skin Tumour Lab, London, England
4. Univ Texas, MD Anderson Canc Ctr, Dept Carcinogenesis, Smithville, TX USA |
| Publisher: BLACKWELL PUBLISHING INC, 350 MAIN ST, MALDEN, MA 02148 USA |
| Subject Category: Dermatology |
| IDS Number: 919TF |
| ISSN: 0022-202X |
| DOI: 10.1111/j.0022-202X.2005.23699.x |
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