Preparing your results

Our searching services are busy right now. Your search will reload in five seconds.

X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

Impaired skin wound healing in peroxisome proliferator-activated receptor (PPAR)alpha and PPARbeta mutant mice.

We show here that the alpha, beta, and gamma isotypes of peroxisome proliferator-activated receptor (PPAR) are expressed in the mouse epidermis during fetal development and that they disappear progressively from the interfollicular epithelium after birth. Interestingly, PPARalpha and beta expression is reactivated in the adult epidermis after various stimuli, resulting in keratinocyte proliferation and differentiation such as tetradecanoylphorbol acetate topical application, hair plucking, or skin wound healing. Using PPARalpha, beta, and gamma mutant mice, we demonstrate that PPARalpha and beta are important for the rapid epithelialization of a skin wound and that each of them plays a specific role in this process. PPARalpha is mainly involved in the early inflammation phase of the healing, whereas PPARbeta is implicated in the control of keratinocyte proliferation. In addition and very interestingly, PPARbeta mutant primary keratinocytes show impaired adhesion and migration properties. Thus, the findings presented here reveal unpredicted roles for PPARalpha and beta in adult mouse epidermal repair.

Pubmed ID: 11514592 RIS Download

Mesh terms: Animals | Cell Adhesion | Cell Division | Cell Movement | Collagen | Elastin | Epidermis | Hair Follicle | Keratinocytes | Macrophages | Mice | Mice, Mutant Strains | Neutrophils | Peroxisomes | Receptors, Cytoplasmic and Nuclear | Skin | Tetradecanoylphorbol Acetate | Transcription Factors | Up-Regulation | Wound Healing

Research resources used in this publication

None found

Research tools detected in this publication

Data used in this publication

None found

Associated grants

None

Mouse Genome Informatics (Data, Gene Annotation)

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

This is a list of tools and resources that we have found mentioned in this publication.


Human Frontier Science Program

The HFSP supports novel, innovative and interdisciplinary basic research focused on the complex mechanisms of living organisms; topics range from molecular and cellular approaches to systems and cognitive neuroscience. A clear emphasis is placed on novel collaborations that bring biologists together with scientists from fields such as physics, mathematics, chemistry, computer science and engineering to focus on problems at the frontier of the life sciences. The Trust provides funding for research regarding complex biological systems. It offers research grants, post doc fellowships, career development fellowships, and short- long- and cross- disciplinary fellowships. HFSP funding programs are strictly project-related and begin at the postdoctoral level. We have no support for PhD students nor for travel grants to scientific meetings. Nor do we provide sponsorship or funds to organizers of scientific meetings. Research Grants Research Grants are awarded for novel collaborations involving extensive collaboration among teams of scientists working in different countries and in different disciplines. Two types of grants are available: Young Investigators Grants and Program Grants. Postdoctoral Fellowships Postdoctoral Fellowships are available for scientists who wish to work in foreign laboratories, with emphasis on individuals early in their careers who wish to obtain training in a different field of research. Fellows who return to their home countries or move to an HFSP member country that is different from the Fellowship host country are eligible to apply for a Career Development Award. Long-Term Fellowships are for scientists with a Ph.D. degree in the life sciences who wish to broaden their experience through postdoctoral training abroad. Cross-Disciplinary Fellowships are intended for postdoctoral fellows with a Ph.D. degree in the physical sciences, chemistry, mathematics, engineering and computer sciences who wish to receive training in biology. Career Development Awards Career Development Awards are for former HFSP Long-Term or Cross-Disciplinary Fellows who return to their home country or move to an HFSP member country that is different from the host country of their HFSP Fellowship. The award provides support for initiating the fellows'' first independent laboratory.

tool

View all literature mentions