Photobiomodulation promotes cell survival in diabetic wounded fibroblast cells

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)

Abstract

In the presence of diabetes mellitus (DM), the wound healing process is interrupted, and chronic wounds develop. DM affects the wound healing response and leads to early apoptosis and reduced number/function of fibroblast cells. In this study we investigated the hypothesis that photobiomodulation (PBM) initiates healing through reduced apoptosis and increased cell survival in diabetic wounded fibroblast (WS1) cells. Cells were irradiated using a diode laser at a wavelength of 660 nm, power output of 100 mW/cm2 and a fluence of 5 J/cm2. Non-irradiated cells were used as controls. Irradiated cells were incubated for 48 h, after which assays for cell viability (Trypan blue exclusion assay), proliferation (5-Bromo-2′-deoxyuridine-BrdU), apoptosis (Annexin V/PI) and the expression of B-Cell Lymphoma 2- Bcl2 (ELISA) were done. PBM at a wavelength of 660 nm, power output of 100 mW/cm2 and a fluence of 5 J/cm2 significantly increased cell survival through reduced apoptosis in diabetic wounded fibroblast cells. The PBM effects observed in this study are critical in the wound healing process.

Original languageEnglish
Title of host publicationMechanisms of Photobiomodulation Therapy XV
EditorsMichael R. Hamblin, James D. Carroll, Praveen Arany
PublisherSPIE
ISBN (Electronic)9781510632059
DOIs
Publication statusPublished - 2020
EventMechanisms of Photobiomodulation Therapy XV 2020 - San Francisco, United States
Duration: 1 Feb 2020 → …

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume11221
ISSN (Print)1605-7422

Conference

ConferenceMechanisms of Photobiomodulation Therapy XV 2020
Country/TerritoryUnited States
CitySan Francisco
Period1/02/20 → …

Keywords

  • Apoptosis
  • Cell survival
  • Chronic wounds
  • Diabetes mellitus
  • Wound healing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology, Nuclear Medicine and Imaging

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