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Troncoso F, Sandoval H, Ibañez B, López-Espíndola D, Bustos F, Tapia JC, Sandaña P, Escudero-Guevara E, Nualart F, Ramírez E, Powers R, Vatish M, Mistry HD, Kurlak LO, Acurio J, Escudero C. Reduced Brain Cortex Angiogenesis in the Offspring of the Preeclampsia-Like Syndrome. Hypertension 2023; 80:2559-2571. [PMID: 37767691 DOI: 10.1161/hypertensionaha.123.21756] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Children from pregnancies affected by preeclampsia have an increased risk of cognitive and behavioral alterations via unknown pathophysiology. We tested the hypothesis that preeclampsia generated reduced brain cortex angiogenesis in the offspring. METHODS The preeclampsia-like syndrome (PELS) mouse model was generated by administering the nitric oxide inhibitor NG-nitroarginine methyl ester hydrochloride. Confirmatory experiments were done using 2 additional PELS models. While in vitro analysis used mice and human brain endothelial cells exposed to serum of postnatal day 5 pups or umbilical plasma from preeclamptic pregnancies, respectively. RESULTS We report significant reduction in the area occupied by blood vessels in the motor and somatosensory brain cortex of offspring (postnatal day 5) from PELS compared with uncomplicated control offspring. These data were confirmed using 2 additional PELS models. Furthermore, circulating levels of critical proangiogenic factors, VEGF (vascular endothelial growth factor), and PlGF (placental growth factor) were lower in postnatal day 5 PELS. Also we found lower VEGF receptor 2 (KDR [kinase insert domain-containing receptor]) levels in mice and human endothelial cells exposed to the serum of postnatal day 5 PELS or fetal plasma of preeclamptic pregnancies, respectively. These changes were associated with lower in vitro angiogenic capacity, diminished cell migration, larger F-actin filaments, lower number of filopodia, and lower protein levels of F-actin polymerization regulators in brain endothelial cells exposed to serum or fetal plasma of offspring from preeclampsia. CONCLUSIONS Offspring from preeclampsia exhibited diminished brain cortex angiogenesis, associated with lower circulating VEGF/PlGF/KDR protein levels, impaired brain endothelial migration, and dysfunctional assembly of F-actin filaments. These alterations may predispose to structural and functional alterations in long-term brain development.
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Affiliation(s)
- Felipe Troncoso
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
| | - Hermes Sandoval
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
| | - Belén Ibañez
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
| | - Daniela López-Espíndola
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad de Valparaíso, Chile (D.L.-E., F.B.)
- Group of Research and Innovation in Vascular Health, Chillan, Chile (D.L.-E., C.E.)
| | - Francisca Bustos
- Escuela de Tecnología Médica, Facultad de Medicina, Universidad de Valparaíso, Chile (D.L.-E., F.B.)
| | - Juan Carlos Tapia
- Stem Cells and Neuroscience Center, School of Medicine, University of Talca, Chile (J.C.T.)
| | - Pedro Sandaña
- Anatomopatholy Unit, Hospital Clinico Herminda Martin, Chillan, Chile (P.S.)
| | - Esthefanny Escudero-Guevara
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
| | - Francisco Nualart
- Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Center for Advanced Microscopy CMA Bio-Bio, Faculty of Biological Sciences, University of Concepcion, Chile (F.N., E.R.)
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Chile (F.N.)
| | - Eder Ramírez
- Laboratory of Neurobiology and Stem Cells NeuroCellT, Department of Cellular Biology, Center for Advanced Microscopy CMA Bio-Bio, Faculty of Biological Sciences, University of Concepcion, Chile (F.N., E.R.)
| | - Robert Powers
- Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, PA (R.P.)
| | - Manu Vatish
- Nuffield Department of Women's Health and Reproductive Research, University of Oxford, England (M.V.)
| | - Hiten D Mistry
- Division of Women and Children's Health, School of Life Course and Population Sciences, King's College London, United Kingdom (H.D.M.)
| | - Lesia O Kurlak
- Stroke Trials Unit, School of Medicine, University of Nottingham, United Kingdom (L.O.K.)
| | - Jesenia Acurio
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
| | - Carlos Escudero
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Chillán, Chile (F.T., H.S., B.I., E.E.-G., J.A., C.E.)
- Group of Research and Innovation in Vascular Health, Chillan, Chile (D.L.-E., C.E.)
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Cumsille P, Lara E, Verdugo-Hernández P, Acurio J, Escudero C. A robust quantitative approach for laser speckle contrast imaging perfusion analysis revealed anomalies in the brain blood flow in offspring mice of preeclampsia. Microvasc Res 2022; 144:104418. [PMID: 35931124 DOI: 10.1016/j.mvr.2022.104418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 07/27/2022] [Accepted: 07/31/2022] [Indexed: 02/01/2023]
Abstract
Microcirculation analysis of the brain cortex is challenging because surface perfusion varies rapidly in small space-time regions and is bone protected. The laser speckle contrast imaging (LSCI) technique allows analyzing in vivo brain vascular perfusion generating a large amount of data that requires sophisticated data analytics, making researchers invest much effort in processing. Our research question was whether the reduced placental perfusion model (RUPP) of preeclampsia (PE) was associated with impaired blood perfusion in the offspring's brains. We aimed to develop a robust numerical approach that mainly consisted of applying a signal-processing tool for calculating optimal segmentation and piece-wise fits of the offspring's brain perfusion signals obtained from the LSCI technique. We combined this tool with the usual statistical analysis, implementing both in Matlab software. We performed brain perfusion measurements from offspring (five days postnatal, P5) of control pregnant dams (sham, n = 13) and of RUPP dams (RUPP, n = 7) using the Pericam® PSI-HR system at a basal condition and after thermal stimuli (warm and cold). We found that pups of RUPP mice exhibited significant differences in perfusion and vascular response to thermal stimuli compared to the sham mice. These differences were associated with high data variability in the Sham group, while in the RUPP group, perfusion looks "stiffer." Data also suggest sex-dimorphism in the vascular response since female pups in the Sham group but not male pups showed statistically significant differences in response to the warm stimulus. Again, this sex-related difference was absent in pups of RUPP mice. In conclusion, we present a robust quantitative approach for LSCI measurements that revealed anomalies in the brain blood flow in offspring of the RUPP model of PE.
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Affiliation(s)
- Patricio Cumsille
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Av. Andrés Bello 720, Casilla 447, Chillán, Chile; Centre for Biotechnology and Bioengineering (CeBiB), University of Chile, Santiago, Chile.
| | - Evelyn Lara
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Av. Andrés Bello 720, Casilla 447, Chillán, Chile; Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile
| | - Paula Verdugo-Hernández
- Escuela de Pedagogía en Ciencias Naturales y Exactas, Facultad de Ciencias de la Educación, Universidad de Talca, Chile
| | - Jesenia Acurio
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Av. Andrés Bello 720, Casilla 447, Chillán, Chile; Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile
| | - Carlos Escudero
- Vascular Physiology Laboratory, Department of Basic Sciences, Universidad del Bío-Bío, Campus Fernando May, Av. Andrés Bello 720, Casilla 447, Chillán, Chile; Group of Research and Innovation in Vascular Health (GRIVAS Health), Chillán, Chile.
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