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Azorin E.,Toluca Institute of Technology | Gonzalez-Martinez P.R.,Nuclear Research National Institute | Azorin J.,Metropolitan Autonomous University
Applied Radiation and Isotopes | Year: 2012

The effect of collagen on the response of somatomammotroph tumor cells (GH3) to gamma, radiation therapy was studied in vitro. After incubating confluent GH3 cell monolayers in a serum-free, maintaining medium, either with or without collagen, the monolayers were irradiated with 137Cs, gamma radiation. Collagen reduces cell mortality via ERK1/2 activation, abolishing gamma radiation, cell death, and promotes cell invasion when acting in synergy with collagen and in association with the, MAPK/ERK1/2 signaling pathway activation. The presence of collagen in somatomammotroph tumors, confers resistance to radiation. © 2012 Elsevier Ltd.

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