A new review highlights the growing importance of
miR-23b, a small but powerful regulator of
gene expression, in shaping the development and progression of a wide range of cancers. This molecule, part of the broader family of
microRNAs, is increasingly recognised for its complex and sometimes contrasting influence on tumor behaviour, offering fresh perspectives on how cancer can be better understood and managed.
The article brings together current knowledge on how
miR-23b operates across multiple cancer types, including those affecting the
digestive,
reproductive,
respiratory, and
urinary systems. Its activity is shown to be highly
dynamic, with the ability to either suppress or promote tumor growth depending on the biological context.
Central to its function is the ability of
miR-23b to regulate critical cellular processes such as
cell proliferation,
migration,
apoptosis, and
angiogenesis. By interacting with key molecular pathways, including
Wnt/β-catenin and
PI3K/AKT signaling, it influences how cancer cells grow, spread, and respond to their environment. These pathways are widely associated with tumor development, placing
miR-23b at the heart of essential biological mechanisms.
The review also underscores the
dual nature of
miR-23b, which can act as both a
tumor suppressor and an
oncogenic factor. In some cancers, it limits tumor progression by targeting harmful genes, while in others, it enhances malignancy by inhibiting protective cellular functions. This
functional versatility reflects the complexity of cancer itself and highlights the importance of context in determining biological outcomes.
Beyond its biological roles,
miR-23b is closely associated with key clinical features such as
patient survival,
disease progression, and
treatment response. Its expression levels vary significantly between cancer types and stages, reinforcing its potential relevance in clinical decision-making.
Another notable aspect is its involvement in
treatment resistance, where
miR-23b influences how cancer cells respond to therapies. By modulating pathways linked to drug sensitivity and cellular adaptation, it plays a role in shaping treatment outcomes and may contribute to more personalised therapeutic strategies in the future.
Overall, this review positions
miR-23b as a highly significant molecular factor with broad implications across cancer biology. Its diverse functions, widespread involvement, and clinical relevance make it a compelling focus for ongoing investigation and a promising avenue for future innovation in oncology.
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Genes & Diseases publishes rigorously peer-reviewed and high quality original articles and authoritative reviews that focus on the molecular bases of human diseases. Emphasis is placed on hypothesis-driven, mechanistic studies relevant to pathogenesis and/or experimental therapeutics of human diseases. The journal has worldwide authorship, and a broad scope in basic and translational biomedical research of molecular biology, molecular genetics, and cell biology, including but not limited to cell proliferation and apoptosis, signal transduction, stem cell biology, developmental biology, gene regulation and epigenetics, cancer biology, immunity and infection, neuroscience, disease-specific animal models, gene and cell-based therapies, and regenerative medicine.
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Reference
Xinyu Cai, Xueer Zheng, Zhenru Wang, Jiahua Mao, Minhe Shen, Shanming Ruan, MicroRNA-23b: Roles, functions and mechanisms in tumor, Genes & Diseases, Volume 13, Issue 4, 2026, 101853,
https://doi.org/10.1016/j.gendis.2025.101853
Funding
National Natural Science Foundation of China 82274597