Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function.
The effects of testosterone (T4) and dihydrotestosterone (DHT) on the survival of the helminth cestode parasite Taenia crassiceps, as well as their effects on actin, tubulin and myosin expression and their assembly into the excretory system of flame cells are described in this paper. In vitro evalua...
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doaj-f0b887dcbba7499cbebf6f554d616cd22020-11-25T02:04:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01106e012792810.1371/journal.pone.0127928Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function.Javier R AmbrosioLaura Valverde-IslasKaren E Nava-CastroM Isabel Palacios-ArreolaPedro Ostoa-SalomaOlivia Reynoso-DucoingGalileo EscobedoAzucena Ruíz-RosadoLenin Dominguez-RamírezJorge Morales-MontorThe effects of testosterone (T4) and dihydrotestosterone (DHT) on the survival of the helminth cestode parasite Taenia crassiceps, as well as their effects on actin, tubulin and myosin expression and their assembly into the excretory system of flame cells are described in this paper. In vitro evaluations on parasite viability, flow cytometry, confocal microscopy, video-microscopy of live flame cells, and docking experiments of androgens interacting with actin, tubulin, and myosin were conducted. Our results show that T4 and DHT reduce T. crassiceps viability in a dose- and time-dependent fashion, reaching 90% of mortality at the highest dose used (40 ng/ml) and time exposed (10 days) in culture. Androgen treatment does not induce differences in the specific expression pattern of actin, tubulin, and myosin isoforms as compared with control parasites. Confocal microscopy demonstrated a strong disruption of the parasite tegument, with reduced assembly, shape, and motion of flame cells. Docking experiments show that androgens are capable of affecting parasite survival and flame cell morphology by directly interacting with actin, tubulin and myosin without altering their protein expression pattern. We show that both T4 and DHT are able to bind actin, tubulin, and myosin affecting their assembly and causing parasite intoxication due to impairment of flame cell function. Live flame cell video microscopy showing a reduced motion as well changes in the shape of flame cells are also shown. In summary, T4 and DHT directly act on T. crassiceps cysticerci through altering parasite survival as well as the assembly and function of flame cells.http://europepmc.org/articles/PMC4468188?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Javier R Ambrosio Laura Valverde-Islas Karen E Nava-Castro M Isabel Palacios-Arreola Pedro Ostoa-Saloma Olivia Reynoso-Ducoing Galileo Escobedo Azucena Ruíz-Rosado Lenin Dominguez-Ramírez Jorge Morales-Montor |
spellingShingle |
Javier R Ambrosio Laura Valverde-Islas Karen E Nava-Castro M Isabel Palacios-Arreola Pedro Ostoa-Saloma Olivia Reynoso-Ducoing Galileo Escobedo Azucena Ruíz-Rosado Lenin Dominguez-Ramírez Jorge Morales-Montor Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. PLoS ONE |
author_facet |
Javier R Ambrosio Laura Valverde-Islas Karen E Nava-Castro M Isabel Palacios-Arreola Pedro Ostoa-Saloma Olivia Reynoso-Ducoing Galileo Escobedo Azucena Ruíz-Rosado Lenin Dominguez-Ramírez Jorge Morales-Montor |
author_sort |
Javier R Ambrosio |
title |
Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. |
title_short |
Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. |
title_full |
Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. |
title_fullStr |
Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. |
title_full_unstemmed |
Androgens Exert a Cysticidal Effect upon Taenia crassiceps by Disrupting Flame Cell Morphology and Function. |
title_sort |
androgens exert a cysticidal effect upon taenia crassiceps by disrupting flame cell morphology and function. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2015-01-01 |
description |
The effects of testosterone (T4) and dihydrotestosterone (DHT) on the survival of the helminth cestode parasite Taenia crassiceps, as well as their effects on actin, tubulin and myosin expression and their assembly into the excretory system of flame cells are described in this paper. In vitro evaluations on parasite viability, flow cytometry, confocal microscopy, video-microscopy of live flame cells, and docking experiments of androgens interacting with actin, tubulin, and myosin were conducted. Our results show that T4 and DHT reduce T. crassiceps viability in a dose- and time-dependent fashion, reaching 90% of mortality at the highest dose used (40 ng/ml) and time exposed (10 days) in culture. Androgen treatment does not induce differences in the specific expression pattern of actin, tubulin, and myosin isoforms as compared with control parasites. Confocal microscopy demonstrated a strong disruption of the parasite tegument, with reduced assembly, shape, and motion of flame cells. Docking experiments show that androgens are capable of affecting parasite survival and flame cell morphology by directly interacting with actin, tubulin and myosin without altering their protein expression pattern. We show that both T4 and DHT are able to bind actin, tubulin, and myosin affecting their assembly and causing parasite intoxication due to impairment of flame cell function. Live flame cell video microscopy showing a reduced motion as well changes in the shape of flame cells are also shown. In summary, T4 and DHT directly act on T. crassiceps cysticerci through altering parasite survival as well as the assembly and function of flame cells. |
url |
http://europepmc.org/articles/PMC4468188?pdf=render |
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