Design, Synthesis, and Biological Evaluation of Organic Nitrite (NO) Donors as Potential Anticerebral Ischemia Agents.

J Med Chem

State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing 210009, P.R. China.

Published: August 2021

The treatment of ischemic stroke (IS) remains a big challenge in clinics, and it is urgently needed to develop novel, safe, and effective medicines against IS. Here, we report the design, synthesis, and biological evaluation of organic NO donors as potential agents for the treatment of IS. The representative compound was able to slowly generate low concentrations of NO by reaction with a thiol-containing nucleophile, and the NO was selectively converted into NO under ischemic/hypoxia conditions to protect primary rat neurons from oxygen-glucose deprivation and recovery (OGD/R)-induced cytotoxicity by enhancing the Nrf2 signaling and activating the NO/cGMP/PKG pathway. Treatment with at 2 h before or after ischemia mitigated the ischemia/reperfusion-induced brain injury in middle cerebral artery occlusion (MCAO) rats by producing NO and enhancing Nrf2 signaling. Furthermore, significantly promoted endothelial cell proliferation and angiogenesis within the ischemic penumbra. Our findings suggest that this type of NO donors, like , may be valuable to fight IS and other ischemic diseases.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.jmedchem.1c00282DOI Listing

Publication Analysis

Top Keywords

design synthesis
8
synthesis biological
8
biological evaluation
8
evaluation organic
8
donors potential
8
agents treatment
8
enhancing nrf2
8
nrf2 signaling
8
organic nitrite
4
nitrite donors
4

Similar Publications

Background: Colorectal cancer (CRC) is the third most common cancer globally, with advanced stages presenting significant treatment challenges. Recently years, drug combination therapy has become a promising strategy for cancer treatment.

Objective: To evaluate the therapeutic efficacy of the combination of the anti-angiogenic drug PEP06 (TB01) and the cytotoxic drug Trifluridine/Tipiracil (TAS-102) in human CRC HCT-116 xenograft mouse model.

View Article and Find Full Text PDF

Importance: Blinding of individuals involved in randomized clinical trials (RCTs) can be used to protect against performance and biases, but discrepancies in the reporting of methodological features between registered protocols and subsequent trial publications may lead to inconsistencies, thereby reintroducing bias.

Objective: To investigate inconsistency in blinding as reported in trial registries and publications.

Data Sources: An exploratory dataset and a validation dataset were created.

View Article and Find Full Text PDF

Antibodies and antibody mimics are extensively used in the pharmaceutical industry, where stringent safety standards are required. Implementing heat sterilization during or after the manufacturing process could help prevent contamination by viruses and bacteria. However, conventional antibodies and antibody mimics are not suitable for heat sterilization because they irreversibly denature at high temperatures.

View Article and Find Full Text PDF

Light-Inducible Deformation of Mitochondria in Live Cells.

Methods Mol Biol

December 2024

Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong, China.

Mitochondria are dynamic organelles with constantly changing morphologies. Despite recent reports indicating that mechanical cues modulate mitochondrial morphologies and functions, there is a lack of methods that can exclusively and precisely exert mechanical forces to and deform mitochondria in live cells. Therefore, how mitochondria sense and respond to mechanical forces remains largely elusive.

View Article and Find Full Text PDF

Photocaged compounds are chemical conjugates that are designed to release an active molecule upon exposure to light of a specific wavelength. In recent years, photocaged inducer molecules such as caged isopropyl β-D-1-thiogalactopyranoside (cIPTG) have been increasingly used as a powerful tool for light-driven gene expression in bacteria, allowing researchers to precisely and noninvasively tune the expression of specific target genes. In this chapter, we present a guideline for the synthesis of 6-nitropiperonyl photocaged IPTG (NP-cIPTG) as well as its in vivo application as an optochemical on-switch of gene transcription in Escherichia coli and other bacteria.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!