Title
January Proyectos de Investigación Básica 2026
Date Issued
2019
Access level
restricted access
Resource Type
journal article
Author(s)
Carmen-Orozco, RP
Davila-Villacorta, DG
Bernal-Teran, EG
Bitterfeld, L
Sutherland, GL
Celiz, RH
Gavidia, CM
Sterling, CR
Garcia, HH
Verastegui, MR
Publisher(s)
John Wiley and Sons Inc
Abstract
Neurocysticercosis (NCC) is a helminth infection affecting the central nervous system caused by the larval stage (cysticercus) of Taenia solium. Since vascular alteration and blood–brain barrier (BBB) disruption contribute to NCC pathology, it is postulated that angiogenesis could contribute to the pathology of this disease. This study used a rat model for NCC and evaluated the expression of two angiogenic factors called vascular endothelial growth factor (VEGF-A) and fibroblast growth factor (FGF2). Also, two markers for BBB disruption, the endothelial barrier antigen and immunoglobulin G, were evaluated using immunohistochemical and immunofluorescence techniques. Brain vasculature changes, BBB disruption, and overexpression of angiogenesis markers surrounding viable cysts were observed. Both VEGF-A and FGF2 were overexpressed in the tissue surrounding the cysticerci, and VEGF-A was overexpressed in astrocytes. Vessels showed decreased immunoreactivity to endothelial barrier antigen marker and an extensive staining for IgG was found in the tissues surrounding the cysts. Additionally, an endothelial cell tube formation assay using human umbilical vein endothelial cells showed that excretory and secretory antigens of T. solium cysticerci induce the formation of these tubes. This in vitro model supports the hypothesis that angiogenesis in NCC might be caused by the parasite itself, as opposed to the host inflammatory responses alone. In conclusion, brain vasculature changes, BBB disruption, and overexpression of angiogenesis markers surrounding viable cysts were observed. This study also demonstrates that cysticerci excretory-secretory processes alone can stimulate angiogenesis. © 2018 Wiley Periodicals, Inc.
Start page
137
End page
148
Volume
97
Issue
2
Number
9
Language
English
Scopus EID
2-s2.0-85054901518
PubMed ID
Source
Journal of Neuroscience Research
ISSN of the container
0360-4012
Sponsor(s)
The research activities were supported by: National Institutes of Health grant 5D43TW006581 (Infectious Diseases Training Program in Peru) (R.H.G.), National Institutes of Health grant FIC/NIH D43 TW001140, INNOVATE PERU N-135 PNICP-PIAP 2015, CIENCIACTIVA 118-2015-FONDECYT. We would like to thank Cesar Quispe, Francisco Ancajima, Emma Carter, Jemima Morales, Ana Delgado, Gino Castillo, Izabo Guillen and Lizbeth Fustamante as part of the Cysticercosis Working Group in Peru.
Sources of information: Directorio de Producción Científica