AI Article Synopsis
- Drug resistance to traditional cancer treatments is a major challenge, prompting researchers to explore cationic antimicrobial peptides (CAPs) as potential anticancer agents.
- A specific 4-arm branched peptide {[(LLKK)2]2κC}2 demonstrated superior effectiveness and selectivity against drug-resistant cancer cells compared to linear and 2-arm branched peptides.
- In animal studies, this branched peptide showed the ability to reduce tumor growth while having low toxicity to vital organs, highlighting its potential as a promising anticancer therapy.
Article Abstract
Drug resistance to traditional chemotherapeutics is one of the main challenges in cancer treatment. Herein, cationic antimicrobial peptides (CAPs) were repurposed as anticancer agents to counter chemotherapy drug resistance. After a systematic study of de novo designed synthetic α-helical CAPs in various cell lines, the 4-arm branched peptide {[(LLKK)2]2κC}2 was found to exhibit better selectivity compared to its linear counterpart (LLKK)4, and was more effective than the 2-arm branched peptide [(LLKK)2]2κC. In particular, the 4-arm branched peptide could counter drug resistance and kill multiple drug resistant cells. Mechanism studies reveal that these α-helical peptides killed both the parent and resistant cancer cells based on the apoptotic pathway. The in vivo study in mice bearing breast tumors showed that branched peptides could be retained at the tumour sites after intratumoral injection and significantly reduced tumor growth while exhibiting minimal toxicity on main organs. These results indicate that the 4-arm branched peptide is a promising candidate for anticancer therapy.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d0bm00629g | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Phyto-mediated fabrication of silver nanoparticles from Scrophularia striata extract (AgNPs-SSE): a potential inducer of apoptosis in breast cancer cells.
Mol Biol Rep
January 2025
Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Background: Breast carcinoma stands out as the most widespread invasive cancer and the top contributor to cancer-related mortality in women. Nanoparticles have emerged as promising tools in cancer detection, diagnosis, and prevention. In this study, the antitumor and apoptotic capability of silver nanoparticles synthesized through Scrophularia striata extract (AgNPs-SSE) was investigated toward breast cancer cells.
View Article and Find Full Text PDFN1 derived lipoteichoic acid alleviates insulin resistance in association with modulation of the gut microbiota and amino acid metabolism.
Food Funct
January 2025
College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China.
This study aimed to investigate the effects of heat-killed N1 (HK-N1) and lipoteichoic acid (LTA) derived from it on alleviating insulin resistance by modulating the gut microbiota and amino acid metabolism. High-fat diet (HFD)-fed mice were administered live bacteria or HK-N1, and the results demonstrated that HK-N1 significantly reduced epididymal adipocyte size and serum low density lipoprotein-cholesterol, and improved insulin resistance by increasing the YY peptide and glucagon-like peptide levels. HK-N1 also modulated the gut microbiome composition, enhancing microbiota uniformity and reducing the abundance of , and .
View Article and Find Full Text PDFPeptide Mimicking Loop II of the Human Epithelial Protein SLURP-2 Enhances the Viability and Migration of Skin Keratinocytes.
Acta Naturae
January 2024
Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, 117997 Russian Federation.
The secreted human protein SLURP-2 is a regulator of epithelial homeostasis, which enhances the viability and migration of keratinocytes. The targets of SLURP-2 in keratinocytes are nicotinic and muscarinic acetylcholine receptors. This work is devoted to the search for the SLURP-2 functional regions responsible for enhancing keratinocyte viability and migration.
View Article and Find Full Text PDFMulti-omics analysis reveals the anti-fatigue mechanism of BCAA-enriched egg white peptides: the role of the gut-muscle axis.
Food Funct
January 2025
Jilin Provincial Key Laboratory of Nutrition and Functional Food, Jilin University, Changchun, 130062, People's Republic of China.
Bioactive peptides rich in branched-chain amino acids (BCAAs) are an effective way to alleviate fatigue conditions, but the deep mechanism remains unclear. This study investigated the anti-fatigue effect of branched-chain amino acid-enriched egg white peptides (BEWPs) through the gut-muscle axis by gut bacteria and untargeted metabolomic analyses. The results demonstrated that BEWPs enhanced exercise endurance and strength by also promoting gastrocnemius development in mice.
View Article and Find Full Text PDFIncreased interferon I signaling, DNA damage response and evidence of T-cell exhaustion in a patient with combined interferonopathy (Aicardi-Goutières Syndrome, AGS) and cohesinopathy (Cornelia de Lange Syndrome, CdLS).
Pediatr Rheumatol Online J
January 2025
Laboratory of Autoimmunity and Inflammation, Center for Clinical, Biomedical Research Foundation, Experimental Surgery and Translational Research, Academy of Athens, Athens, Greece.
Background: Type I interferonopathies including Aicardi-Goutiéres Syndrome (AGS) represent a heterogeneous group of clinical phenotypes. Herein, we present a Case with combined AGS and Cornelia de Lange Syndrome (CdLS)-a cohesinopathy-with comprehensive analysis of the immune and genomic abnormalities.
Case And Methods: A 20-year old man presented with chilblain lesions and resorption of distal phalanges of fingers and toes, somatic and psychomotor retardation, microcephaly, synophrys, hearing losing and other aberrancies consistent with the phenotype of CdLS.
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!