Pilot Study of Protein Profiling of the Human Epidermal Cells After Ultraviolet Irradiation

2014-08-27 03:41:39 | BioPortfolio


The main focus of this pilot study is to construct a fairly complete protein profile of the epidermis. This will allow us to study how the epidermis responds to external stressors such as ultra-violet. We hypothesize that by using the cutting edge technology, proteomics, we will be able to construct a fairly complete profile of different epidermal cells (keratinocytes, epidermal nerve fibers (ENFs), melanocytes, Langerhans cell,...etc) of normal and ultraviolet (UV) irradiated skin.


We will investigate the changes of the epidermal cell proteome after UV irradiation to the forearms of healthy young male volunteers. Knowledge of specific molecular markers may provide knowledge of basic biological systems and possibly targeted therapy of inflammation.

By using combined proteomic methodologies we will be able to quantify protein changes at cytoplasmic and membrane protein levels of epidermal cells in normal vs. irradiated skins.

This study may allow us to obtain fairly comprehensive profile of membrane integrated and cytoplasmic proteins of epidermal cell populations which will facilitate our understand of biological responses to UV irradiation.

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic




UV Irradiation


University of Minnesota
United States


Active, not recruiting


University of Minnesota - Clinical and Translational Science Institute

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:41:39-0400

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Medical and Biotech [MESH] Definitions

Irradiation of one half or both halves of the body in the treatment of disseminated cancer or widespread metastases. It is used to treat diffuse metastases in one session as opposed to multiple fields over an extended period. The more frequent treatment modalities are upper hemibody irradiation (UHBI) or lower hemibody irradiation (LHBI). Less common is mid-body irradiation (MBI). In the treatment of both halves of the body sequentially, hemibody irradiation permits radiotherapy of the whole body with larger doses of radiation than could be accomplished with WHOLE-BODY IRRADIATION. It is sometimes called "systemic" hemibody irradiation with reference to its use in widespread cancer or metastases. (P. Rubin et al. Cancer, Vol 55, p2210, 1985)

The systematic study of the complete complement of proteins (PROTEOME) of organisms.

External or interstitial irradiation to treat lymphomas (e.g., Hodgkin's and non-Hodgkin's lymphomas) and lymph node metastases and also some autoimmune diseases, such as rheumatoid arthritis.

Irradiation of the whole body with ionizing or non-ionizing radiation. It is applicable to humans or animals but not to microorganisms.

A suspension of radioactive gold particles emitting negative beta particles and gamma irradiation. It was formerly used for liver scans and irradiation treatment of some metastatic malignancies.

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