Study of certain clinical variables in patients with psoriasis and their relation to DNA content of keratinocytes

Changes in Proteome of Fibroblasts Isolated from Psoriatic Skin Lesions

The dermal fibroblasts are in constant contact with the cells of the immune system and skin epidermis. Therefore, they are essential for the development of lesions in psoriasis. The aim of this study was to assess the changes in the proteomic profile of fibroblasts in the dermis of psoriasis patients, and to discuss the most significant changes and their potential consequences. The proteomic results indicate that fibroblast dysfunction arises from the upregulation of proinflammatory factors and antioxidant proteins, as well as those involved in signal transduction and participating in proteolytic processes. Moreover, downregulated proteins in psoriatic fibroblasts are mainly responsible for the transcription/translation processes, glycolysis/ adenosine triphosphate synthesis and structural molecules. These changes can directly affect intercellular signaling and promote the hyperproliferation of epidermal cells. A better understanding of the metabolic effects of the proteomic changes observed could guide the development of new pharmacotherapies for psoriasis.

A Listing of Skin Conditions Exhibiting the Koebner and Pseudo-Koebner Phenomena with Eliciting Stimuli

Background:

The Koebner phenomenon was first described in 1872. It occurs after a variety of traumatic insults. New examples of koebnerization are reported each decade.

Objective:

We have compiled, for the first time in the dermatologic literature, an extensive list of the cutaneous diseases reported to demonstrate koebnerization, correlated in each case with the precise source of trauma. Cutaneous diseases reported to show a pseudo-Koebner phenomenon and the corresponding mechanism of trauma are also detailed.

Methods:

A search and review of the English language literature on MEDLINE was made to identify cutaneous diseases exhibiting the Koebner phenomenon and the correlated mechanism of trauma.

Results:

Results of our efforts are cataloged in table format.

Conclusion:

We present an extensive list of cutaneous diseases reported to exhibit the Koebner and pseudo-Koebner phenomena, correlating each entry with the mechanism of trauma.