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Du Y, Li L, Li X, Tan J, Qin Y, Lv Y, Zhai X. Synergistic effects and molecular mechanisms of DL-3-n-butylphthalide combined with dual antiplatelet therapy in acute ischemic stroke. Int Immunopharmacol 2024; 129:111592. [PMID: 38295546 DOI: 10.1016/j.intimp.2024.111592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/23/2024] [Indexed: 02/02/2024]
Abstract
DL-3-n-butylphthalide (NBP) is isolated from the seeds of Apium graveolens L., and has been recently used as a neuroprotective agent for acute ischemic stroke. The present study aimed to determine the efficacy and safety of the combined use of dual antiplatelet therapy (DAPT) and NBP for treating of acute ischemic stroke in rats and to explore the synergistic mechanism of this treatment strategy in rat middle cerebral artery occlusion models. The efficacy of DAPT combined with NBP was evaluated by determining neurological deficits, infarction status, and histological changes. Changes in body weight, blood glucose level, blood count, and serum biochemical parameters were detected to evaluate the safety. To explore the synergistic pharmacological mechanism, the mRNA expression and protein levels of key proteins in the pyroptosis-inflammatory pathway, and the pyroptosis ratio of microglias were examined. Compared with the administration of NBP or DAPT alone, combination of them significantly improved neurological deficits, reduced infarct area, and repaired tissue injury and inflammation after cerebral ischemia. No hepatorenal toxicity was observed. The mRNA expression and protein levels of key proteins in the pyroptosis-inflammation pathway, and the pyroptosis ratio of microglias were significantly downregulated in the combined administration group than in the monotherapy group. We demonstrated that the combined use of NBP and DAPT exhibits better efficacy and high safety and plays a synergistic role by inhibiting the pyroptosis-inflammation pathway in the brain tissues, particularly in microglial cells.
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Affiliation(s)
- Yujing Du
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Linjie Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xixuan Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingxuan Tan
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanjie Qin
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yongning Lv
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Centre for Precision Medicine for Critical Illness, Wuhan, China.
| | - Xuejia Zhai
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Province Clinical Research Centre for Precision Medicine for Critical Illness, Wuhan, China.
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Demeulenaere O, Bertolo A, Pezet S, Ialy-Radio N, Osmanski B, Papadacci C, Tanter M, Deffieux T, Pernot M. In vivo whole brain microvascular imaging in mice using transcranial 3D Ultrasound Localization Microscopy. EBioMedicine 2022; 79:103995. [PMID: 35460988 PMCID: PMC9048085 DOI: 10.1016/j.ebiom.2022.103995] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/25/2022] [Accepted: 03/25/2022] [Indexed: 11/24/2022] Open
Abstract
Background Non-invasive high-resolution imaging of the cerebral vascular anatomy and function is key for the study of intracranial aneurysms, stenosis, arteriovenous malformations, and stroke, but also neurological pathologies, such as degenerative diseases. Direct visualization of the microvascular networks in the whole brain remains however challenging in vivo. Methods In this work, we performed 3D ultrafast ultrasound localization microscopy (ULM) using a 2D ultrasound matrix array and mapped the whole-brain microvasculature and flow at microscopic resolution in C57Bl6 mice in vivo. Findings We demonstrated that the mouse brain vasculature can be imaged directly through the intact skull at a spatial resolution of 20 µm and over the whole brain depth and at high temporal resolution (750 volumes.s−1). Individual microbubbles were tracked to estimate the flow velocities that ranged from 2 mm.s−1 in arterioles and venules up to 100 mm.s−1 in large vessels. The vascular maps were registered automatically with the Allen atlas in order to extract quantitative vascular parameters such as local flow rates and velocities in regions of interest. Interpretation We show the potential of 3D ULM to provide new insights into whole-brain vascular flow in mice models at unprecedented vascular scale for an in vivo technique. This technology is highly translational and has the potential to become a major tool for the clinical investigation of the cerebral microcirculation. Funding This study was supported by the European Research Council under the European Union's Seventh Framework Program (FP/2007-2013) / ERC Grant Agreement n° 311025 and by the Fondation Bettencourt-Schueller under the program “Physics for Medicine”. We acknowledge the ART (Technological Research Accelerator) biomedical ultrasound program of INSERM.
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Affiliation(s)
- Oscar Demeulenaere
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | - Adrien Bertolo
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France; Iconeus, Paris 75014, France
| | - Sophie Pezet
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | - Nathalie Ialy-Radio
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | | | - Clément Papadacci
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | - Mickael Tanter
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | - Thomas Deffieux
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France
| | - Mathieu Pernot
- Physics for Medicine, ESPCI, Inserm, CNRS, Institute of Physics for Medicine Paris, PSL University, ESPCI Paris, 17 rue Moreau, Paris 75012, France.
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Abstract
"Bienvenue!", "Benvenuti!", "Willkommen!", "Welcome!" to the GTH 2021 congress, simply online … worth experiencing. During the Opening Ceremony, which will take place on Monday, February 22, you will enjoy, among other inspiring presentations (check on www.gth2021.org), the Alexander Schmidt Lecture held by the Awardee Markus Bender. The corresponding manuscript by BENDER AND PALANKAR: ,1 masterfully summarizing recent findings on the contribution of the actin cytoskeleton and lamellipodia structures to platelet function, opens this year's congress issue of Hämostaseologie - Progress in Haemostasis.
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Affiliation(s)
- Lorenzo Alberio
- Service et Laboratoire central d'hématologie, Centre Hospitalier Universitaire Vaudois (CHUV), Université de Lausanne (UNIL), Switzerland
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