3 research outputs found
La formaci贸n docente en momentos de cambios: 驴Qu茅 nos dicen los profesores principiantes universiatrios?
Este estudio cualitativo con una metodolog铆a de estudios de casos m煤ltiple examina la opini贸n de los profesores principiantes de la Universidad de Barcelona sobre las consecuencias del proceso de implementaci贸n del Espacio Europeo de Educaci贸n Superior (EEES). Indaga sobre la valoraci贸n que realiza el profesorado sobre la formaci贸n recibida en el postgrado de 'Iniciaci贸n a la docencia universitaria' y sobre los aprendizajes que les gener贸 la experiencia formativa. La muestra de la investigaci贸n ha estado constituida por diez profesores principiantes de diferentes 谩mbitos de conocimiento de la Universidad de Barcelona y los datos proceden de la realizaci贸n de entrevistas en profundidad. Entre los hallazgos m谩s importantes, cabe destacar su percepci贸n sobre la implementaci贸n del EEES y las propuestas que dan sobre los cambios que deber铆a realizar la Universidad para una verdadera reforma de la formaci贸n de los docente
Peptide-Based Glioma-Targeted Drug Delivery Vector gHoPe2
Gliomas are therapeutically challenging
cancers with poor patient
prognosis. New drug delivery strategies are needed to achieve a more
efficient chemotherapy-based approach against brain tumors. The current
paper demonstrates development of a tumor-targeted delivery vector
that is based on a cell-penetrating peptide pVEC and a novel glioma-targeting
peptide sequence gHo. The unique tumor-homing peptide gHo was identified
using <i>in vitro</i> phage display technology. The novel
delivery vector, which we designated as gHoPe2, was constructed by
a covalent conjugation of pVEC, gHo, and a cargo; the latter could
be either a labeling moiety (such as a fluorescent marker) or a cytostatic
entity. Using a fluorescent marker, we demonstrate efficient uptake
of the vector in glioma cells and selective labeling of glioma xenograft
tumors in a mouse model. This is the first time that we know where <i>in vitro</i> phage display has yielded an efficient, <i>in vivo</i> working vector. We also demonstrate antitumor efficacy
of the delivery vector gHoPe2 using a well-characterized chemotherapeutic
drug doxorubicin. Vectorized doxorubicin proved to be more efficient
than the free drug in a mouse glioma xenograft model after systemic
administration of the drugs. In conclusion, we have characterized
a novel glioma-homing peptide gHo, demonstrated development of a new
and potential glioma-targeted drug delivery vector gHoPe2, and demonstrated
the general feasibility of the current approach for constructing cell-penetrating
peptide-based targeted delivery systems
Additional file 1 of Radiosynthesis, structural identification and in vitro tissue binding study of [18F]FNA-S-ACooP, a novel radiopeptide for targeted PET imaging of fatty acid binding protein 3
Additional file 1. Supplementary experimental data including NMR and MS spectra, HPLC chromatograms of in vitro plasma stability studies etc