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Research Article
Epidermal Growth Factor based Therapy Promotes Intracellular Trafficking and Accumulation of its Receptor in the Nucleus of Fibroblasts from Diabetic Foot Ulcers
Author(s): Viviana Falcón-Cama, Maday Fernández-Mayola, Yssel Mendoza-Marí, Nelson Acosta-Rivero, Ariana García-Ojalvo, Ricardo Bringas-Pérez, Ivón Menéndez-Valdés, Mariuska Matos-Terrero, Lilianne López-Noudo, Rocío Garateix-Suárez, Karla Pereira-Yañez, Maritza González, Sirenia González-Pozos, Juan Kourí-Flores, William Savigne-Gutiérrez, Ivonne Salgado, Alejandro Hernández-Seara, David G Armstrong and Jorge Berlanga-AcostaViviana Falcón-Cama, Maday Fernández-Mayola, Yssel Mendoza-Marí, Nelson Acosta-Rivero, Ariana García-Ojalvo, Ricardo Bringas-Pérez, Ivón Menéndez-Valdés, Mariuska Matos-Terrero, Lilianne López-Noudo, Rocío Garateix-Suárez, Karla Pereira-Yañez, Maritza González, Sirenia González-Pozos, Juan Kourí-Flores, William Savigne-Gutiérrez, Ivonne Salgado, Alejandro Hernández-Seara, David G Armstrong and Jorge Berlanga-Acosta
Objective: To gain a better understanding of the Epidermal Growth Factor (EGF) Receptor (EGFR) activation, trafficking and biological response in diabetic foot ulcers (DFU), exposed to recombinant human EGF via intra-ulcer infiltration as a healing alternative.
Methods: We studied by immunoelectron microscopy the intracellular localization of the EGFR and Proliferating Cell Nuclear Antigen (PCNA) in fibroblast-like cells (FLC) from granulation tissue of DFU patients, collected before and at different time points after EGF treatment.
Results: EGF therapy appears to increase EGFR immunolabeling. At early time-points, EGFR labeling is observed predominantly in the nucleus, suggesting a fast EGFR internalization and nuclear translocation. Interestingly EGFR is also detected in the mito.. Read More»
DOI:
10.4172/2475-3211.1000111
Journal of Diabetic Complications & Medicine received 102 citations as per Google Scholar report