title: Keloid skin scars: the influence of hyperbaric oxygenation on fibroblast growth and on the expression of messenger RNA for insulin like growth factor and for transforming growth factor.
abstract: Wound healing can result in the development of keloid scars that contain atypical fibroblasts and an overabundance of extracellular matrix components. Hyperbaric oxygenation (HBO) refers to exposure to pure oxygen under increased atmospheric pressure and is recognized as a valuable supplementary method of treatment for problematic wounds. The effect of HBO in the expression of insulin-like growth factor type 1 (ILGF-1) and transforming growth factor β (TGF-β) messenger RNAs was determined by semiquantitative RT-PCR in fibroblasts obtained from keloid scars and nonwound involved skin fibroblast from the same patient. ILGF-1 and TGF-β are the principal mitogens during wound regeneration. We found a decrease in the growth of fibroblasts and in the expression of ILGF-1 and TGF-β messengers in keloid and nonkeloid fibroblast after chronic exposition to hyperbaric oxygenation compared with normal oxygen partial pressure.
authors.affiliation: Departamento de Biología Molecular e Histocompatibilidad, Mexico City, Mexico. mirza@servidor.unam.mx
authors.forename: Mirza
authors.initials: M
authors.lastname: Romero-Valdovinos
authors.forename: Alexander
authors.initials: A
authors.lastname: Cárdenas-Mejía
authors.forename: Claudia
authors.initials: C
authors.lastname: Gutiérrez-Gómez
authors.forename: Ana
authors.initials: A
authors.lastname: Flisser
authors.forename: Simón
authors.initials: S
authors.lastname: Kawa-Karasik
authors.forename: Fernando
authors.initials: F
authors.lastname: Ortiz-Monasterio
mesh_terms: D005347:Fibroblasts / Q000166:cytology / Q000502:physiology*; D006801:Humans; D006931:Hyperbaric Oxygenation; D007334:Insulin-Like Growth Factor I / Q000235:genetics* / Q000378:metabolism; D007627:Keloid / Q000235:genetics* / Q000503:physiopathology; D012333:RNA, Messenger / Q000378:metabolism*; D016212:Transforming Growth Factor beta / Q000235:genetics* / Q000378:metabolism; D014945:Wound Healing
chemical_list: D012333:RNA, Messenger; D016212:Transforming Growth Factor beta; D007334:Insulin-Like Growth Factor I