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The Application of Open Searching-based Approaches for the Identification of Acinetobacter baumannii O-linked Glycopeptides

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Glycosylation-driven bioactivity switching: Comparative pharmacology and translational prospects of oroxin and

Huan Wang¹, Yuan Liu¹, Yi-Xuan Song¹

¹School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.

Phytomedicine : International Journal of Phytotherapy and Phytopharmacology

|October 16, 2025

Abstract

Background:

Oroxin and its aglycone precursor, baicalein, are flavonoids with multi-target anticancer, anti-inflammatory, metabolic, and cardioprotective activities, yet clinical translation is hindered by poor bioavailability and insufficient toxicological data, particularly for oroxin.

Purpose:

To critically compare their molecular mechanisms, pharmacokinetics, and glycosylation-dependent activities, and to evaluate emerging production and delivery strategies that address translational barriers.

Methods:

Literature was identified through Web of Science and PubMed up to May 2025, using keywords ("Oroxin", "Baicalein", etc.) combined with pharmacological terms. The review prioritized original studies and reviews directly elucidating the compounds and comparing their activities or mechanisms. Studies lacking compound-specific or experimentally validated data were excluded. The included studies were categorized as in vitro or in vivo.

Results:

Both compounds context-dependently modulate PI3K/AKT, NF-κB, and endoplasmic reticulum stress pathways. Glycosylation in oroxin enhances aqueous solubility but reduces membrane permeability, thereby altering tissue distribution and metabolic stability. Baicalein undergoes extensive glucuronidation and exhibits a favorable safety margin, whereas oroxin lacks comprehensive toxicity profiling. Recent advances in microbial biosynthesis, chemoenzymatic synthesis, nanoformulations, and synergistic combinations have improved yield, absorption, distribution, metabolism, excretion properties, and therapeutic indices.

Conclusion:

While both oroxin and baicalein exhibit substantial therapeutic potential, their clinical application is limited by limited bioavailability and insufficient toxicological data, particularly in the case of oroxin. Ongoing and future research should prioritize the development of advanced drug delivery systems, robust safety evaluations, and deeper investigation into their synergistic and immunomodulatory effects to fully realize their clinical utility.

Keywords:

Baicalein Flavonoids Glycosylation Oroxin PI3K/AKT signaling Translational medicine

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