OBJECTIVE: To investigate the effects of angiogenesis inhibitor TNP-470 on uterine microvessels in mice. Pituitary grafting frequently induced uterine adenomyosis. DESIGN: In vivo experimental study. SETTING: Department of Biological Sciences, University of Tokyo and Medical Research Institute, Tokyo Medical and Dental University. ANIMAL(S): SHN mice, which are known to develop uterine adenomyosis spontaneously, and also very soon after pituitary grafting. INTERVENTION(S): Immunohistochemical study on uterine blood vessels using an antibody to von Willebrand factor in pituitary gland-implanted mice with or without TNP-470. MAIN OUTCOME MEASURE(S): Reduced incidence of uterine adenomyosis. RESULT(S): Twelve of 15 mice developed uterine adenomyosis with dilated blood vessels, but none of the TNP-470-treated mice with shrunken microvessels. The number of bromodeoxyuridine immunoreactive cells and activities of thymidylate synthase and thymidine kinase in uterine tissues were markedly reduced in TNP-470-treated mice. CONCLUSION(S): TNP-470, a potent inhibitor of the development of vascular endothelium, reduced the development of endometrial blood vessels resulting in a lowered incidence of uterine adenomyosis induced by pituitary grafting in mice, and reduced the increase in S-phase cells and enzyme activity for pyrimidine nucleotide synthesis.
OBJECTIVE: To investigate the effects of angiogenesis inhibitor TNP-470 on uterine microvessels in mice. Pituitary grafting frequently induced uterine adenomyosis. DESIGN: In vivo experimental study. SETTING: Department of Biological Sciences, University of Tokyo and Medical Research Institute, Tokyo Medical and Dental University. ANIMAL(S): SHN mice, which are known to develop uterine adenomyosis spontaneously, and also very soon after pituitary grafting. INTERVENTION(S): Immunohistochemical study on uterine blood vessels using an antibody to von Willebrand factor in pituitary gland-implanted mice with or without TNP-470. MAIN OUTCOME MEASURE(S): Reduced incidence of uterine adenomyosis. RESULT(S): Twelve of 15 mice developed uterine adenomyosis with dilated blood vessels, but none of the TNP-470-treated mice with shrunken microvessels. The number of bromodeoxyuridine immunoreactive cells and activities of thymidylate synthase and thymidine kinase in uterine tissues were markedly reduced in TNP-470-treated mice. CONCLUSION(S): TNP-470, a potent inhibitor of the development of vascular endothelium, reduced the development of endometrial blood vessels resulting in a lowered incidence of uterine adenomyosis induced by pituitary grafting in mice, and reduced the increase in S-phase cells and enzyme activity for pyrimidine nucleotide synthesis.
Authors: Marissa J Harmsen; Caroline F C Wong; Velja Mijatovic; Arjan W Griffioen; Freek Groenman; Wouter J K Hehenkamp; Judith A F Huirne Journal: Hum Reprod Update Date: 2019-09-11 Impact factor: 15.610
Authors: Marissa J Harmsen; Arda Arduç; Maaike C G Bleeker; Lynda J M Juffermans; Arjan W Griffioen; Ekaterina S Jordanova; Judith A F Huirne Journal: Int J Mol Sci Date: 2022-07-29 Impact factor: 6.208