R
Rossana Arroyo
Researcher at Instituto Politécnico Nacional
Publications - 89
Citations - 2777
Rossana Arroyo is an academic researcher from Instituto Politécnico Nacional. The author has contributed to research in topics: Trichomonas vaginalis & Gene. The author has an hindex of 28, co-authored 84 publications receiving 2546 citations. Previous affiliations of Rossana Arroyo include CINVESTAV & University of Texas Health Science Center at San Antonio.
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Journal ArticleDOI
Trichomonas vaginalis surface proteinase activity is necessary for parasite adherence to epithelial cells.
Rossana Arroyo,John F. Alderete +1 more
TL;DR: Treatment of T. vaginalis organisms with proteinase inhibitors for abrogation of cytadherence effectively rendered the trichomonads unable to kill host cells, which is consistent with the contact-dependent nature of host cytotoxicity.
Journal ArticleDOI
Molecular basis of host epithelial cell recognition by Trichomonas vaginalis
TL;DR: The pretreatment of epithelial cells with a preparation of purified adhesins also blocked trichomonal cytoadherence and HeLa cells possessed molecules which recognized and bound to adhesin on nitrocellulose blots.
Journal ArticleDOI
Entamoeba histolytica : a novel cysteine protease and an adhesin form the 112 kDa surface protein.
Guillermina García-Rivera,Mario A. Rodríguez,Mario A. Rodríguez,R. Ocadiz,M. C. Martinez-Lopez,Rossana Arroyo,Rossana Arroyo,Arturo González-Robles,Esther Orozco,Esther Orozco +9 more
TL;DR: Evidence is presented that a cysteine protease (EhCP112) and a protein with an adherence domain (EhADH112) form the Entamoeba histolytica 112 kDa adhesin, and that these peptides could be joined by covalent or strong electrostatic forces, which are not broken during phagocytosis.
Journal ArticleDOI
Signalling of Trichomonas vaginalis for amoeboid transformation and adhesin synthesis follows cytoadherence
TL;DR: Different signals after contact with either epithelial cell type leads to the morphological transformation and/or induction of adhesin synthesis by T. vaginalis, and parasites adhering to either VECs or HeLa cells were induced to synthesize greater amounts of the four previously described adhesins.
Journal ArticleDOI
The regulation by iron of the synthesis of adhesins and cytoadherence levels in the protozoan Trichomonas vaginalis.
TL;DR: Levels of adherence of Trichomonas vaginalis to epithelial cells was found to be modulated by iron and data indicated that genes encoding the four trichomonad adhesins are coordinately regulated by iron.