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<p>Traditional Chinese medicine (TCM) standardization is largely based on chemical equivalence, yet achieving reproducible therapeutic efficacy remains challenging. This limitation reflects an implicit assumption that medicinal plants are chemically static materials, overlooking their nature as dynamically regulated biological systems. This commentary emphasizes plant epigenetic and metabolic plasticity as a missing dimension in current quality assessment strategies. Environmental and developmental factors can establish stable regulatory states through epigenetic mechanisms, including DNA methylation and histone modification, thereby shaping metabolic organization beyond immediate growth conditions. Because therapeutic efficacy emerges from coordinated metabolic networks, evaluation based solely on static chemical composition is inherently limited. I propose an epigenetically informed materia medica framework for next-generation quality assessment. By integrating dynamic metabolic signatures, such as metabolite relationships and pathway coordination, with epigenetic indicators of regulatory history, this approach redefines consistency as predictable functional performance rather than chemical uniformity. This perspective provides a biologically realistic foundation for improving reproducibility while aligning standardization with the systemic principles of herbal therapeutics.</p>

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Why the same herb is not the same medicine: plant epigenetic and metabolic plasticity as a missing variable in Chinese medicine

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月29日

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  • Tae Kyung Hyun

摘要

Traditional Chinese medicine (TCM) standardization is largely based on chemical equivalence, yet achieving reproducible therapeutic efficacy remains challenging. This limitation reflects an implicit assumption that medicinal plants are chemically static materials, overlooking their nature as dynamically regulated biological systems. This commentary emphasizes plant epigenetic and metabolic plasticity as a missing dimension in current quality assessment strategies. Environmental and developmental factors can establish stable regulatory states through epigenetic mechanisms, including DNA methylation and histone modification, thereby shaping metabolic organization beyond immediate growth conditions. Because therapeutic efficacy emerges from coordinated metabolic networks, evaluation based solely on static chemical composition is inherently limited. I propose an epigenetically informed materia medica framework for next-generation quality assessment. By integrating dynamic metabolic signatures, such as metabolite relationships and pathway coordination, with epigenetic indicators of regulatory history, this approach redefines consistency as predictable functional performance rather than chemical uniformity. This perspective provides a biologically realistic foundation for improving reproducibility while aligning standardization with the systemic principles of herbal therapeutics.