Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Misregulation and mutations of the transcription factor Nrf2 are involved in the development of a variety of human diseases. In this study, we employed the technology of stapled peptides to address a protein-DNA-complex and designed a set of Nrf2-based derivatives. Varying the length and position of the hydrocarbon staple, we chose the best peptide for further evaluation in both fixed and living cells. Peptide 4 revealed significant enrichment within the nucleus compared to its linear counterpart 5, indicating potent binding to DNA. Our studies suggest that these molecules offer an interesting strategy to target activated Nrf2 in cancer cells.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9216541PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0267651PLOS

Publication Analysis

Top Keywords

stapled peptides
8
design synthesis
4
synthesis nrf2-derived
4
nrf2-derived hydrocarbon
4
hydrocarbon stapled
4
peptides disruption
4
disruption protein-dna-interactions
4
protein-dna-interactions misregulation
4
misregulation mutations
4
mutations transcription
4

Similar Publications

Murine double minute 2 (MDM2, also known as human double minute 2 or HDM2) is a negative regulator of the tumor suppressor protein p53 and is overexpressed in many cancers. Over the past two decades, substantial progress has been made in developing inhibitors of the MDM2-p53 interaction, thereby allowing the p53 protein to exert antitumor effects through cell apoptosis and cycle arrest. While there are currently no FDA-approved MDM2 inhibitors available, several small molecule MDM2 inhibitors and a stapled peptide inhibitor of the MDM2-p53 interaction are in clinical development.

View Article and Find Full Text PDF

The oncogenic transcription factor MYC drives proliferation, metabolism, and therapy resistance in the majority of human cancers, yet its large, nuclear protein-protein interface has long frustrated direct drug discovery. A pivotal breakthrough was the identification of Tribbles pseudokinase 3 (TRIB3) as a high-affinity scaffold that binds the helix-loop-helix/leucine zipper region of MYC, blocks the E3-ubiquitin-ligase, UBE3B, from tagging critical lysines, and thereby prolongs MYC protein half-life while enhancing MYC-MAX transcriptional output. This review integrates structural, biochemical, and in vivo data to show how genetic deletion or pharmacological eviction of TRIB3 collapses MYC levels, silences its gene program, and suppresses tumor growth in B-cell lymphomas and selected solid tumors.

View Article and Find Full Text PDF

Molecular mechanisms underlying HRK interaction with BCL-XL and BCL-2 reveal specificity determinants for BH3 mimetics.

iScience

September 2025

Department of Oncology, NHC Key Laboratory of Cancer Proteomics & State Local Joint Engineering Laboratory for Anticancer Drugs, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.

BH3 mimetics targeting the BCL-2 family hold broad promise for cancer therapy. High similarity between the anti-apoptotic proteins BCL-XL and BCL-2 challenges the engineering of selective inhibitors. The BH3-only protein HRK is a natural selective inhibitor of BCL-XL and to a less extent of BCL-2.

View Article and Find Full Text PDF

The development of novel candidate molecules for breast cancer treatment holds significant clinical value. Panurgines (PNG), derived from the venom of the wild bee Panurgus calcaratus, are particularly noteworthy for their anti-breast cancer activity and antibacterial properties. However, linear peptides are often hindered by poor stability and limited cell membrane permeability, making them highly susceptible to protease degradation.

View Article and Find Full Text PDF

Peptide/Protein Functionalization and Macrocyclization via Alkyne Umpolung with Hypervalent Iodine Reagents.

Acc Chem Res

August 2025

Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland.

ConspectusAlkynes are one of the most fundamental functional groups in organic synthesis due to the versatile chemistry of the triple bond, their unique rigid structure, and their use in bioconjugation. The introduction of alkynes onto organic molecules traditionally relies on nucleophilic activation, often requiring strong bases or metal catalysts. These conditions, however, restrict applications involving biomolecules such as peptides and proteins due to functional group incompatibility.

View Article and Find Full Text PDF