On the basis of the first dipeptide ligand of TSPO, N-carbobenzoxy-L-tryptophanyl-L-isoleucine amide (GD-23), which was obtained by us earlier, we synthesized a new dipeptide, N-phenylpropionyl-L-tryptophanyl-L-leucine amide (GD-102). GD-102 exhibited anxiolytic activity in the open field test in BALB/c mice and in the elevated plus maze test in ICR mice. The minimum effective dose of GD-102 was one order of magnitude lower than that of GD-23. Compound PK11195, a selective antagonist of TSPO, completely blocked the anxiolytic activity of GD-102, which testified to the involvement of TSPO in the realization of the anxiolytic effect of GD-102. The results were confirmed by molecular docking data.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1134/S1607672919010046 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tc-99m labeled PSMA-617 as a potential SPECT radiotracer for prostate cancer diagnostics: Complexation optimization and its in vitro/vivo evaluation.
Bioorg Med Chem
February 2025
Division of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address:
Technetium-99m (Tc-99m) is the most employed radionuclide in nuclear imaging diagnostics worldwide for many diseases. The ideal physiochemical properties of Tc-99m (such as half-life and pure gamma energy) make it favorable for Single Photon Emission Computed Tomography (SPECT). In this study, we aim to expand the utilization of Tc-99m radiopharmaceutical toward prostate cancer diagnostics which is currently no FDA approved products and has been intensively examined for a potential candidate.
View Article and Find Full Text PDFDelivery of Monomethyl Auristatin F to the Tumor Microenvironment with Noninternalizing Fibroblast Activation Protein-Cleavable Small Molecule-Drug Conjugates Elicits Potent Anticancer Activity.
Bioconjug Chem
January 2025
Philochem AG, R&D Department, CH-8112 Otelfingen, Switzerland.
OncoFAP is an ultrahigh affinity ligand of fibroblast activation protein (FAP), a tumor-associated antigen overexpressed in the stroma of the majority of solid tumors. OncoFAP has been previously implemented as a tumor-homing moiety for the development of small molecule drug conjugates (SMDCs). In the same context, the glycine--proline dipeptide was included with the aim to selectively undergo cleavage only in the presence of the target FAP, triggering the consequent release of the cytotoxic payload in the tumor microenvironment.
View Article and Find Full Text PDFNeuroprotective effects of activated fibroblast growth factor receptor 1 via the suppression of p53 accumulation against poly-PR-mediated toxicity.
Biochem Biophys Res Commun
January 2025
Laboratory of Medical Therapeutics and Molecular Therapeutics, Japan. Electronic address:
A GGGGCC hexanucleotide repeat expansion (HRE) within the C9orf72 gene is a major causative factor in amyotrophic lateral sclerosis (ALS). This aberrant HRE results in the generation of five distinct dipeptide repeat proteins (DPRs). Among the DPRs, poly-PR accumulates in the nucleus and exhibits particularly strong toxicity to motor and cortical neurons.
View Article and Find Full Text PDFAntibody-Drug Conjugates Targeting the EGFR Ligand Epiregulin Elicit Robust Anti-Tumor Activity in Colorectal Cancer.
Cancer Res
December 2024
The University of Texas Health Science Center at Houston, Houston, TX, United States.
As colorectal cancer (CRC) remains a leading cause of cancer-related death, identifying therapeutic targets and approaches is essential to improve patient outcomes. The EGFR ligand epiregulin (EREG) is highly expressed in RAS wildtype and mutant CRC with minimal expression in normal tissues, making it an attractive target for antibody-drug conjugate (ADC) development. In this study, we produced and purified an EREG monoclonal antibody (mAb), H231, that had high specificity and affinity for human and mouse EREG.
View Article and Find Full Text PDFWant 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!