000 01995na a2200301 4500
999 _c2092
_d2092
003 PC2092
005 20181113113817.0
008 130622s2013 xxx||||| |||| 00| 0 eng d
040 _cH12O
041 _aeng
100 _aFerrero Herrero, Eduardo
_942
_eCirugía General y del Aparato Digestivo
245 0 0 _aTyrosine phosphorylation modulates the vascular responses of mesenteric arteries from human colorectal tumors.
_h[artículo]
260 _bBioMed research international,
_c2013
300 _a2013:545983.
500 _aFormato Vancouver: Ferrero E, Mauricio MD, Granado M, García-Villar O, Aldasoro M, Vila JM et al. Tyrosine phosphorylation modulates the vascular responses of mesenteric arteries from human colorectal tumors. Biomed Res Int. 2013;2013:545983.
501 _aPMID: 24324963
520 _aThe aim of this study was to analyze whether tyrosine phosphorylation in tumoral arteries may modulate their vascular response. To do this, mesenteric arteries supplying blood flow to colorectal tumors or to normal intestine were obtained during surgery and prepared for isometric tension recording in an organ bath. Increasing tyrosine phosphorylation with the phosphatase inhibitor, sodium orthovanadate produced arterial contraction which was lower in tumoral than in control arteries, whereas it reduced the contraction to noradrenaline in tumoral but not in control arteries and reduced the relaxation to bradykinin in control but not in tumoral arteries. Protein expression of VEGF-A and of the VEGF receptor FLT1 was similar in control and tumoral arteries, but expression of the VEGF receptor KDR was increased in tumoral compared with control arteries. This suggests that tyrosine phosphorylation may produce inhibition of the contraction in tumoral mesenteric arteries, which may increase blood flow to the tumor when tyrosine phosphorylation is increased by stimulation of VEGF receptors.
710 _9271
_aServicio de Cirugía General y del Aparato Digestivo
856 _uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842070/
_yAcceso libre
942 _n0
_2ddc
_cART