Faculty Sponsor

Dr. Judith D. Ochrietor

Faculty Sponsor College

College of Arts and Sciences

Faculty Sponsor Department

Biology

Location

SOARS Virtual Conference

Presentation Website

https://unfsoars.domains.unf.edu/adipose-induced-regeneration-of-scalp-air-scalp-to-treat-radiation-injury/

Keywords

SOARS (Conference) (2020 : University of North Florida) -- Posters; University of North Florida. Office of Undergraduate Research; University of North Florida. Graduate School; College students – Research -- Florida – Jacksonville -- Posters; University of North Florida – Undergraduates -- Research -- Posters; University of North Florida. Department of Biology -- Research -- Posters; Biology, Physics, and Chemistry -- Research – Posters

Abstract

Whole brain radiation therapy is a common treatment for cancer patients. After radiation, approximately 95% of the patients can experience acute and/or chronic side-effects: Radiation dermatitis, fibrosis, and chronic ulcers. The purpose of this study was to examine the effects of adipose-derived products (ADPs) in an animal model of radiation dermatitis. We hypothesized that ADPs would enhance wound healing and regenerate the skin; improving cellularity, vascularity, and decreasing scar tissue formation. Immunocompromised mice received a 0.5 cm skin incision on their scalp, which was closed with surgical glue. After 2 weeks, the mice received focal radiation using a 5 mm collimator: 0 Gy, 20 Gy single, and 40 Gy fractionated (8 Gy/day for 5 days) doses were used. After 2 weeks, mice were randomized into 4 groups and received a subcutaneous injection of 1) FAT-graft, 2) Stromal vascular fraction, 3) Adipose-derived mesenchymal stem cells, and 4) PBS. ADPs were isolated from lipoaspirate samples, obtained from non-cancer human patients. Two weeks after the ADPs treatments, mice were euthanized and skin samples were collected and processed for histology. Histological staining (H&E) was used to evaluate skin integrity after radiation. Results from the 20Gy group showed that the mice developed mild dermatitis 2 weeks after the radiation treatment that subsequently healed after ADPs treatment. No histological differences were observed between groups. While this study is ongoing (40Gy), it is hopeful that these results will offer an innovative way to treat radiation-induced damage in cancer patients.

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Biology Commons

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Apr 8th, 12:00 AM Apr 8th, 12:00 AM

Adipose-Induced Regeneration of Scalp (AIR-Scalp) to Treat Radiation Injury

SOARS Virtual Conference

Whole brain radiation therapy is a common treatment for cancer patients. After radiation, approximately 95% of the patients can experience acute and/or chronic side-effects: Radiation dermatitis, fibrosis, and chronic ulcers. The purpose of this study was to examine the effects of adipose-derived products (ADPs) in an animal model of radiation dermatitis. We hypothesized that ADPs would enhance wound healing and regenerate the skin; improving cellularity, vascularity, and decreasing scar tissue formation. Immunocompromised mice received a 0.5 cm skin incision on their scalp, which was closed with surgical glue. After 2 weeks, the mice received focal radiation using a 5 mm collimator: 0 Gy, 20 Gy single, and 40 Gy fractionated (8 Gy/day for 5 days) doses were used. After 2 weeks, mice were randomized into 4 groups and received a subcutaneous injection of 1) FAT-graft, 2) Stromal vascular fraction, 3) Adipose-derived mesenchymal stem cells, and 4) PBS. ADPs were isolated from lipoaspirate samples, obtained from non-cancer human patients. Two weeks after the ADPs treatments, mice were euthanized and skin samples were collected and processed for histology. Histological staining (H&E) was used to evaluate skin integrity after radiation. Results from the 20Gy group showed that the mice developed mild dermatitis 2 weeks after the radiation treatment that subsequently healed after ADPs treatment. No histological differences were observed between groups. While this study is ongoing (40Gy), it is hopeful that these results will offer an innovative way to treat radiation-induced damage in cancer patients.

https://digitalcommons.unf.edu/soars/2020/spring_2020/38