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Effect of Laser Thermal Injury on Langerhans Cells in Mouse and Hairless Guinea Pig Epidermis

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Effect of Laser Thermal Injury on Langerhans Cells in Mouse and Hairless Guinea Pig Epidermis

Auteurs : Kim Burnham [États-Unis] ; Kurt Schuster ; Aurora Shingledecker ; Robert Kornegay ; Jeffrey Oliver

Source :

Photochemistry and Photobiology [ 0031-8655 ] ; 2013-09.

RBID : ISTEX:D5781CEB6336A6B1C0CAAFAABB7857A5DD64D9E4

Descripteurs français

Wicri :
- geographic : Guinée.
- topic : Migration.

English descriptors

KwdEn :
- Coagulation, Collagen denaturation, Dendritic, Dermal, Dermal damage, Dermis, Epidermal, Epidermal damage, Epidermis, Guinea, Hairless, Hairless guinea, Hairless guinea pigs, Highest dose, Human skin, Infectious agents, Infrared camera, Langerhans, Langerhans cells, Laser, Laser exposure, Laser irradiation, Laser treatment, Migration, Mouse, Mouse skin, Normal levels, Peak temperature increase, Post exposure, Post irradiation, Separate power settings, Standard error, Thermal damage, Tissue damage, Unexposed skin, Viable epidermis.
Teeft :
- Coagulation, Collagen denaturation, Dendritic, Dermal, Dermal damage, Dermis, Epidermal, Epidermal damage, Epidermis, Guinea, Hairless, Hairless guinea, Hairless guinea pigs, Highest dose, Human skin, Infectious agents, Infrared camera, Langerhans, Langerhans cells, Laser, Laser exposure, Laser irradiation, Laser treatment, Migration, Mouse, Mouse skin, Normal levels, Peak temperature increase, Post exposure, Post irradiation, Separate power settings, Standard error, Thermal damage, Tissue damage, Unexposed skin, Viable epidermis.

Abstract

To examine the effect of laser thermal injury on Langerhans cells (LC) within the epidermis, the dorsal skin of mice and hairless guinea pigs was exposed to varying levels of laser irradiation using a thulium laser at a wavelength of 2.0 μm. At 6, 24 and 48 h post irradiation, animals were euthanized, skin samples prepared for histology and the epidermis obtained and stained by major histocompatibility complex‐II staining (mice) or ATPase assay (hairless guinea pigs) for the enumeration of LC. Mouse skin exhibited histological evidence of thermal damage at 24 h post irradiation at even the lowest dose (0.14 W) and decreases in the numbers of epidermal LC were observed at all doses and decreases were proportional to dose. In contrast, hairless guinea pig skin only showed consistent histological evidence of thermal damage at the highest dose of irradiation (0.70 W) at 24 and 48 h post irradiation and exhibited a statistically significant decrease in numbers of epidermal LC only at this dose. Thus, epidermal LC depletion occurred in the skin of both mice and hairless guinea pigs in response to laser treatment and the magnitude of depletion directly correlated with the extent of thermal damage both within and between species.

Url:

https://api.istex.fr/document/D5781CEB6336A6B1C0CAAFAABB7857A5DD64D9E4/fulltext/pdf

DOI: 10.1111/php.12092

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Kurt Schuster

<affiliation><mods:affiliation>TASC, Inc., TX, Fort Sam Houston</mods:affiliation>
<wicri:noCountry code="subField">Houston</wicri:noCountry>
</affiliation>

Aurora Shingledecker

<affiliation><mods:affiliation>TASC, Inc., TX, Fort Sam Houston</mods:affiliation>
<wicri:noCountry code="subField">Houston</wicri:noCountry>
</affiliation>

Robert Kornegay

<affiliation><mods:affiliation>711th Human Performance Wing/RHDV, TX, Fort Sam Houston</mods:affiliation>
<wicri:noCountry code="subField">Houston</wicri:noCountry>
</affiliation>

Jeffrey Oliver

<affiliation><mods:affiliation>711th Human Performance Wing/RHDO, TX, Fort Sam Houston</mods:affiliation>
<wicri:noCountry code="subField">Houston</wicri:noCountry>
</affiliation>

Le document en format XML

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<wicri:noCountry code="subField">Houston</wicri:noCountry>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Coagulation</term>
<term>Collagen denaturation</term>
<term>Dendritic</term>
<term>Dermal</term>
<term>Dermal damage</term>
<term>Dermis</term>
<term>Epidermal</term>
<term>Epidermal damage</term>
<term>Epidermis</term>
<term>Guinea</term>
<term>Hairless</term>
<term>Hairless guinea</term>
<term>Hairless guinea pigs</term>
<term>Highest dose</term>
<term>Human skin</term>
<term>Infectious agents</term>
<term>Infrared camera</term>
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<term>Langerhans cells</term>
<term>Laser</term>
<term>Laser exposure</term>
<term>Laser irradiation</term>
<term>Laser treatment</term>
<term>Migration</term>
<term>Mouse</term>
<term>Mouse skin</term>
<term>Normal levels</term>
<term>Peak temperature increase</term>
<term>Post exposure</term>
<term>Post irradiation</term>
<term>Separate power settings</term>
<term>Standard error</term>
<term>Thermal damage</term>
<term>Tissue damage</term>
<term>Unexposed skin</term>
<term>Viable epidermis</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Coagulation</term>
<term>Collagen denaturation</term>
<term>Dendritic</term>
<term>Dermal</term>
<term>Dermal damage</term>
<term>Dermis</term>
<term>Epidermal</term>
<term>Epidermal damage</term>
<term>Epidermis</term>
<term>Guinea</term>
<term>Hairless</term>
<term>Hairless guinea</term>
<term>Hairless guinea pigs</term>
<term>Highest dose</term>
<term>Human skin</term>
<term>Infectious agents</term>
<term>Infrared camera</term>
<term>Langerhans</term>
<term>Langerhans cells</term>
<term>Laser</term>
<term>Laser exposure</term>
<term>Laser irradiation</term>
<term>Laser treatment</term>
<term>Migration</term>
<term>Mouse</term>
<term>Mouse skin</term>
<term>Normal levels</term>
<term>Peak temperature increase</term>
<term>Post exposure</term>
<term>Post irradiation</term>
<term>Separate power settings</term>
<term>Standard error</term>
<term>Thermal damage</term>
<term>Tissue damage</term>
<term>Unexposed skin</term>
<term>Viable epidermis</term>
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<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Guinée</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Migration</term>
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<front><div type="abstract">To examine the effect of laser thermal injury on Langerhans cells (LC) within the epidermis, the dorsal skin of mice and hairless guinea pigs was exposed to varying levels of laser irradiation using a thulium laser at a wavelength of 2.0 μm. At 6, 24 and 48 h post irradiation, animals were euthanized, skin samples prepared for histology and the epidermis obtained and stained by major histocompatibility complex‐II staining (mice) or ATPase assay (hairless guinea pigs) for the enumeration of LC. Mouse skin exhibited histological evidence of thermal damage at 24 h post irradiation at even the lowest dose (0.14 W) and decreases in the numbers of epidermal LC were observed at all doses and decreases were proportional to dose. In contrast, hairless guinea pig skin only showed consistent histological evidence of thermal damage at the highest dose of irradiation (0.70 W) at 24 and 48 h post irradiation and exhibited a statistically significant decrease in numbers of epidermal LC only at this dose. Thus, epidermal LC depletion occurred in the skin of both mice and hairless guinea pigs in response to laser treatment and the magnitude of depletion directly correlated with the extent of thermal damage both within and between species.</div>
</front>
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Effect of Laser Thermal Injury on Langerhans Cells in Mouse and Hairless Guinea Pig Epidermis

Effect of Laser Thermal Injury on Langerhans Cells in Mouse and Hairless Guinea Pig Epidermis

Source :

Descripteurs français

English descriptors

Abstract

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Links to Exploration step

Curation

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