ArticleGenes & genomics2026
UBL4A as a suppressor of intracerebral hemorrhage by binding to MAPK14 and promoting MAPK14 ubiquitination.
Article in Genes & genomics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundIntracerebral hemorrhage (ICH) is a primary non-traumatic parenchymal hemorrhage of the brain with a high mortality and disability rate. Acupuncture has been proved to alleviate neurological deficits after ICH.
objectiveOur previous study found that UBL4A is up-regulated in the ICH rat treated with acupuncture, and may be a potential molecular target for acupuncture treatment of ICH. However, the molecular mechanism behind UBL4A is unclear.
methodsUBL4A knockdown was conducted in ICH rats with acupuncture treatment to explore its role in the therapeutic effects of acupuncture on ICH. In vitro, the effects of UBL4A on heme-induced neuronal injury were evaluated using E18 rat embryonic primary cortical neurons. Proteomic experiments were used to verify the regulatory relationship between UBL4A and MAPK14.
resultsUBL4A knockdown has opposite effects to the therapeutic effects of acupuncture on ICH, including increasing corner turn score, brain water content and the number of degenerated and apoptotic neuron in ICH rats. UBL4A knockdown increased the level of ROS, OPA1-S/L, p-MAPK14 and mitochondrial Drp1, and decreased mitochondrial membrane potential, ATP level and MFN2 level in rat brain tissue. In vitro, UBL4A overexpression reduced ROS level and mitochondrial membrane potential and inhibited the activation of the MAPK14/Drp1 signaling pathway. Co-IP verified the binding of UBL4A and MAPK14, and MAPK14 overexpression reversed the effect of UBL4A on hemin-induced neuronal apoptosis and ROS level.
conclusionOur study confirms that UBL4A is involved in the therapeutic effect of acupuncture on ICH, and affects mitochondrial damage and oxidative stress through MAPK14 ubiquitination.
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