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Platelet Rich Plasma Prolongs Myofibroblast Accumulation in Corneal Stroma with Incisional Wound
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- Koulikovska, Marina, 1970- (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Ögonkliniken US
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- Szymanowski, Olena (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Ögonkliniken US
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- Lagali, Neil (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Ögonkliniken US
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- (creator_code:org_t)
- 2015-04-07
- 2015
- English.
- In: Current Eye Research. - : Taylor & Francis. - 0271-3683 .- 1460-2202. ; 40:11, s. 1102-1110
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Purpose: The purpose of this study was to determine whether platelet rich plasma (PRP) has an effect on corneal stromal cells in a rat model of wound healing following corneal incision. Materials and Methods: The effect of PRP on corneal wound healing in vivo was investigated in a corneal incision wound model in rats. 40 rats were wounded by deep corneal incision, and treated with either topically administered PRP (20 rats) or sodium chloride (20 rats). At 4 hours and 1, 3, and 5 days after incision, α-smooth muscle actin (α SMA), SMAD2 and SMAD3 expression and apoptosis in stromal cells were evaluated by immunohistochemistry, and IL-1β mRNA expression was evaluated by real time PCR.Results: PRP treated corneas exhibited reduced stromal cell apoptosis at day 3 and day 5 (p = 0.038, and <0.001, respectively) relative to controls. Interleukin-1β mRNA expression, however, was unchanged in PRP treated corneas relative to controls. Topical PRP treatment resulted in a higher proportion of αSMA-positive myofibroblasts recruited to the wound site relative to control corneas. PRP did not affect activation of SMAD2 but activation of SMAD3 was significantly reduced at day 1 (p=0.001) and dramatically increased at day 5 (p=0.032).Conclusions: PRP treatment resulted in suppressed stromal cell apoptosis followed by SMAD3 activation and a greater proportion of myofibroblasts present at the wound site. Suppression of stromal cell apoptosis after corneal wounding by use of a growth factor rich formulation may lead to myofibroblast accumulation by modulation of the TGF-β pathway.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology (hsv//eng)
Keyword
- Platelet rich plasma
- corneal wound healing
- α-smooth muscle actin
- apoptosis
- keratocytes
Publication and Content Type
- ref (subject category)
- art (subject category)
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