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Periplocin Targets HDAC10 to Inhibit NF-κB Signaling and Induce Apoptosis in Myeloid Leukemia Cells

ABSTRACT: Background: Periplocin, a bioactive compound extracted from Cortex periplocae, has long been employed in traditional medicine for its diverse therapeutic effects, particularly in alleviating inflammation and inhibiting cancer progression. However, despite its potential benefits, the underlying molecular mechanisms of periplocin, especially in the context of leukemia treatment, remain poorly elucidated, warranting further investigation to uncover its precise role and therapeutic targets. Methods: A comprehensive approach combining network pharmacology and transcriptomic analysis was utilized to identify HDAC10 as a critical downstream target of periplocin. Molecular docking and dynamic simulation studies were performed to elucidate the interaction between periplocin and HDAC10 at the molecular level. Additionally, functional assays, including apoptosis induction, cell cycle regulation, and pathway inhibition experiments, were conducted to validate the mechanistic role of HDAC10 and its relevance to periplocin's anti-leukemic effects. Results: Periplocin was identified as an effective inhibitor of HDAC10, binding specifically to its hydrophobic active pocket and suppressing its enzymatic activity. This inhibition disrupted downstream signaling, particularly the NF-κB pathway, leading to significant apoptosis and cell cycle arrest in leukemia cells. These results therapy, offering insights into its mechanism of action through HDAC10 targeting. Conclusion: In conclusion, periplocin, as a novel natural compound, exhibits significant anti-leukemia activity, highlighting its potential as a promising therapeutic candidate for leukemia treatment. The findings contribute to the growing interest in natural compounds as innovative solutions for addressing unmet clinical needs in hematological malignancies.

ORGANISM(S): Homo sapiens

PROVIDER: GSE289937 | GEO | 2025/07/16

REPOSITORIES: GEO

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Project description:Cutaneous T-cell lymphomas (CTCL) are a group of rare hematological malignancies characterized by infiltration of malignant T-cells into the skin. Two main types of CTCL constitute of Mycosis Fungoides (MF), a more indolent form of the disease, and Sézary Syndrome (SS), the aggressive and leukemic variant with blood involvement. Sézary syndrome presents a significant clinical challenge due to its very aggressive nature, poor prognosis, and treatment resistance, and to date, the disease is known to be uncurable. Histone deacetylase inhibitors have gained attention in CTCL treatment with promising results, but they expose limited specificity and strong side effects. Recent genomic studies underscore the role of epigenetic modifiers in CTCL pathogenesis, prompting an investigation into HDAC10, a member of Class IIb HDACs, in SS. HDAC10 was investigated in different cancers, revealing its involvement in the cell cycle regulation, apoptosis, and autophagy, but its role in CTCL is unknown. In this study we aimed to determine the role of HDAC10 in Sezary Syndrome, focusing on its cellular localization, role in cell growth, and potential therapeutic target. We indicated that HDAC10 is overexpressed in SS patients and located mainly in the cytoplasm. Its overexpression leads to an inhibitory effect on apoptosis progression when exposed to the pro-apoptotic compound Camptothecin (CPT). Knockdown of HDAC10 resulted in reduced cell growth and induction of apoptosis and autophagy, highlighting its potential importance in CTCL pathogenesis. Whole transcriptome analysis indicated that HDAC10 is associated with crucial cancer-related pathways for example hematopoietic cell lineage, PI3K-Akt signaling pathway, pathways in cancer, Ras signaling pathway, MAPK signaling pathway or JAK-STAT signaling pathway, which are critical for the survival and proliferation of malignant T cells. Inhibition of HDAC10 with selective HDAC10i increased the sensitivity of Sézary cells to the pro-apoptotic compound camptothecin (CPT). Our findings demonstrate that HDAC10 plays a key role in the molecular background of Sézary syndrome, highlighting its importance in the cellular mechanisms of the disease

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Periplocin Targets HDAC10 to Inhibit NF-κB Signaling and Induce Apoptosis in Myeloid Leukemia Cells

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