Abstract

The epidermis is composed of multiple layers of keratinocytes that are tightly anchored to one another by intercellular junctional complexes. These adhesive junctions maintain tissue integrity and help create a physical barrier with the outside world limiting both water loss and the influx of allergens and infectious material. Consequently, defects in adhesion lead to skin fragility and blistering diseases and have been associated with the development of inflammatory skin diseases. Importantly, intercellular junctions and their associated cytoskeleton are not static structures. Certain cells, such as melanocytes, lymphocytes and dendritic cells, must have the ability to temporarily break these junctions as they migrate into the epidermis or send out processes between neighboring keratinocytes. Very little is known about how keratinocytes reorganize their cell-cell contacts in response to invading cells.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
Type
Center Core Grants (P30)
Project #
5P30AR057216-04
Application #
8488586
Study Section
Special Emphasis Panel (ZAR1-KM-D (M1))
Project Start
Project End
Budget Start
2012-07-01
Budget End
2013-06-30
Support Year
4
Fiscal Year
2012
Total Cost
$46,681
Indirect Cost
$15,706

  Institution

Name
Northwestern University at Chicago
Department
Type
DUNS #
005436803
City
Chicago
State
IL
Country
United States
Zip Code
60611

  Publications

Chu, Lan H; Indramohan, Mohanalaxmi; Ratsimandresy, Rojo A et al. (2018) The oxidized phospholipid oxPAPC protects from septic shock by targeting the non-canonical inflammasome in macrophages. Nat Commun 9:996
Tsoi, Lam C; Yang, Jingjing; Liang, Yun et al. (2018) Transcriptional determinants of individualized inflammatory responses at anatomically separate sites. J Allergy Clin Immunol 141:805-808
Kaplan, Nihal; Ventrella, Rosa; Peng, Han et al. (2018) EphA2/Ephrin-A1 Mediate Corneal Epithelial Cell Compartmentalization via ADAM10 Regulation of EGFR Signaling. Invest Ophthalmol Vis Sci 59:393-406
Nekrasova, Oxana; Harmon, Robert M; Broussard, Joshua A et al. (2018) Desmosomal cadherin association with Tctex-1 and cortactin-Arp2/3 drives perijunctional actin polymerization to promote keratinocyte delamination. Nat Commun 9:1053
Kishibe, Mari; Griffin, Tina M; Goslawski, Melissa et al. (2018) Topical nicotinic receptor activation improves wound bacterial infection outcomes and TLR2-mediated inflammation in diabetic mouse wounds. Wound Repair Regen 26:403-412
Kam, Chen Yuan; Dubash, Adi D; Magistrati, Elisa et al. (2018) Desmoplakin maintains gap junctions by inhibiting Ras/MAPK and lysosomal degradation of connexin-43. J Cell Biol 217:3219-3235
North, Jeffrey P; Golovato, Justin; Vaske, Charles J et al. (2018) Cell of origin and mutation pattern define three clinically distinct classes of sebaceous carcinoma. Nat Commun 9:1894
Rübsam, Matthias; Broussard, Joshua A; Wickström, Sara A et al. (2018) Adherens Junctions and Desmosomes Coordinate Mechanics and Signaling to Orchestrate Tissue Morphogenesis and Function: An Evolutionary Perspective. Cold Spring Harb Perspect Biol 10:
Najor, Nicole Ann; Fitz, Gillian Nicole; Koetsier, Jennifer Leigh et al. (2017) Epidermal Growth Factor Receptor neddylation is regulated by a desmosomal-COP9 (Constitutive Photomorphogenesis 9) signalosome complex. Elife 6:
Hamanaka, Robert B; Mutlu, Gökhan M (2017) PFKFB3, a Direct Target of p63, Is Required for Proliferation and Inhibits Differentiation in Epidermal Keratinocytes. J Invest Dermatol 137:1267-1276

Showing the most recent 10 out of 102 publications