ArticleACS omega2025
Comparative Enzymatic and Stability Assays Reveal GPLG as an Effective Cathepsin B Cleavable Linker for Tumor-Targeting Drug Conjugates.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed.
- Cathepsin Family Proteases in Prodrug Design: Recent Advances.ChemMedChem · 2026Review
- Article
- Frontiers in Antibody-Drug Conjugates: Mechanisms, Design Innovations, and Clinical Applications in Targeted Cancer Therapy.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Antibody-drug conjugates for infectious and neglected tropical diseases: chemical design principles, target biology, and translational challenges.Frontiers in chemistry · 2026Review
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the past decade, targeted drug delivery systems have significantly advanced cancer therapy. A key component of these constructs is the chemical linker that covalently connects a targeting unit to a potent cytotoxic payload. Among approved and investigational antibody-drug conjugates (ADCs) and small molecule-drug conjugates (SMDCs), lysosomal-cleavable peptide sequences such as Val-Cit (VCit), Val-Ala (VA), and Gly-Phe-Leu-Gly (GFLG) are widely used for tumor-specific drug release. However, premature drug release and instability often cause off-target toxicity and poor selectivity. Since lysosomal proteases are still considered optimal for the drug release within the tumor site, the quest for new and more stable lysosomal-sensitive peptide sequences is currently an ongoing challenge. This work investigates the enzymatic susceptibility, cleavage kinetics, and metabolic stability of the peptide sequence Gly-Pro-Leu-Gly (GPLG) as a novel Cathepsin B-cleavable linker for tumor-targeting drug conjugates. Compared to GFLG, VCit, and VA, all conjugated to paclitaxel via a PABC-
Identifiers
What Socratic holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.