Title :

Proteomics unveil corticoid-induced S100A11 shuttling in keratinocyte differentiation

Author(s) :

Dezitter, Xavier [Auteur]
Hammoudi, Fatma [Auteur]
Belverge, Nicolas [Auteur]
Deloulme, Jean-Christophe [Auteur]
Drobecq, Herve [Auteur]
Masselot, Bernadette [Auteur]
Formstecher, Pierre [Auteur]
Mendy, Denise [Auteur]
Idziorek, Thierry [Auteur]

Journal title :

Biochemical and biophysical research communications

Abbreviated title :

Biochem. Biophys. Res. Commun.

Volume number :

360

Pages :

627-632

Publication date :

2007-08-31

ISSN :

0006-291X

English keyword(s) :

calcium
glucocorticoids
proteomic
keratinocyte
differentiation
apoptosis
S100A11

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Unlike classical protein extraction techniques, proteomic mapping using a selective subcellular extraction kit revealed S100A11 as a new member of the S100 protein family modulated by glucocorticoids in keratinocytes. ...
Show more >Unlike classical protein extraction techniques, proteomic mapping using a selective subcellular extraction kit revealed S100A11 as a new member of the S100 protein family modulated by glucocorticoids in keratinocytes. Glucocorticoids (GC)-induced S100A11 redistribution in the "organelles and membranes" compartment. Microscopic examination indicated that glucocorticoids specifically routed cytoplasmic S100A11 toward perinuclear compartment. Calcium, a key component of skin terminal differentiation, directed S100A11 to the plasma membrane as previously reported. When calcium was added to glucocorticoids, minor change was observed at the proteomic level while confocal microscopy revealed a rapid and dramatic translocation of S100A11 toward plasma membrane. This effect was accompanied by strong nuclear condensation, loss of mitochondrial potential and DNA content, and increased high molecular weight S100A11 immunoreactivity, suggesting corticoids accelerate calcium-induced terminal differentiation. Finally, our results suggest GC-induced S100A11 relocalization could be a key step in both keratinocyte homeostasis and glucocorticoids side effects in human epidermis.Show less >

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CHU Lille
Inserm
Université de Lille

Collections :

• Institut de Recherche Translationnelle sur l'Inflammation (INFINITE) - U1286
• Lille Neurosciences & Cognition (LilNCog) - U 1172

Research team(s) :

Therapeutic innovation targetting inflammation

Submission date :

2019-05-17T13:08:45Z