ArticleFrontiers in cell and developmental biology2025
The Mkx- TGF-β pathway induced the development of the myodural bridge complex in SD rats.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- The myodural bridge complex: a comprehensive review of morphology, physiology, developmental biology and pathology.Frontiers in medicine · 2026Review
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12 authors.
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Abstract
Objective: The myodural bridge complex (MDBC) is a tendon-like structure highly conserved during vertebrate evolution, suggesting it plays an important physiological role. Substantial evidence indicates that the MDBC may contribute to cerebrospinal fluid (CSF) circulation by generating mechanical force. Studying its developmental process may offer new insights into CSF dynamics and lead to improved strategies for diagnosing and treating neurodegenerative diseases. Materials and Methods: This study utilized utilized lentiviral plasmids to either knockdown or overexpress the Mkx gene in newborn Sprague-Dawley rats (SD) rats, establishing three groups: control, overexpression group, and interference group. Suboccipital injections were performed at birth. Histological staining and qPCR were conducted at multiple time points to assess the morphological and genetic impacts of Mkx modulation on the development of the MDBC. Results: Transfection efficiency was confirmed by Green fluorescent protein (GFP) expression quantification, Conclusion: Mkx exerts bidirectional regulation on MDBC development by modulating the TGF-β signaling pathway. Overexpression of Mkx promotes collagen deposition and structural reinforcement in MDBC through coordinated molecular mechanisms: upregulating Scx/Egr1 expression, downregulating Myod, and inducing hyperplastic growth of deep fascial fibers in the rectus capitis dorsal minor muscle (RCDmi). Conversely, Mkx suppression maintains tissue integrity through three synergistic mechanisms: upregulating Myod expression, inducing MDBC fiber proliferation, and facilitating adaptive remodeling of the posterior atlanto-occipital membrane (PAOM). At the molecular level, Mkx coordinates differentiation processes through dynamic equilibrium of Scx/Egr1/Myod expression profiles while constructing regulatory networks that couple biomechanical-chemical signals via TGF-β pathway activation.
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