Farydak (panobinostat)

P1/2, N=49, Active, not recruiting, Erasmus Medical Center | Recruiting --> Active, not recruiting

In search of the molecular mechanism underlying a potentially intrinsic panobinostat resistance, we identified up-regulation of the HDAC8-transforming growth factor-β (TGFβ)-epithelial-to-mesenchymal transition (EMT) axis in the TO model, whereas subsequent HDAC8 depletion increased the sensitivity to panobinostat. These data highlight the utility of personalized drug screenings on TOs to identify suitable drug targets and inhibitors for more effective treatment of clinically aggressive meningiomas and to help advance our understanding of counteracting resistance mechanisms.

Viability, cytotoxicity, and caspase-3/7 activity were assessed following single-agent treatment with asciminib, ponatinib, bortezomib, or panobinostat. Co-inhibition of proteasomes and histone deacetylases eliminates TKI-refractory BCR::ABL1-driven leukaemia cells by inducing mitochondrial apoptosis and loss of clonogenic potential. These findings indicate a clinically actionable, TKI-independent strategy for the salvage treatment of multidrug-resistant CML.

Furthermore, panobinostat downregulated a network of oncogenes and cell cycle regulators, including c-Myc and key cyclins. These findings indicate that panobinostat can enhance 5-FU cytotoxicity by targeting TS expression and reprogramming oncogenic transcriptional networks, supporting its potential as a complementary strategy for overcoming fluoropyrimidine resistance in GC therapy.

This finding highlights the functional relevance of IMiD's inherent polypharmacology in circumventing primary resistance mechanisms at the cellular level. Together, our results identify the ARID2-containing PBAF complex as a critical vulnerability in resistant myeloma cells and provide a mechanistic rationale for designing combination strategies that co-target this complex, with the potential to enhance therapeutic efficacy by overcoming drug resistance.

Pharmacologic inhibition of HDAC1 with panobinostat recapitulated the tumor-suppressive effects observed with MIG-6 overexpression. These findings suggest that HDAC1 may represent a potential therapeutic target in EEC and that HDAC inhibition can attenuate early tumor progression and angiogenic signaling in preclinical models. Implications: This study identifies the MIG-6/HDAC1 axis as a key regulator of angiogenesis in EEC, highlighting HDAC1 inhibition as a promising targeted therapeutic strategy for early tumor suppression.

Moreover, with the co-delivery of siSTAT3, the exosomes display various functionalities, such as inhibiting GB proliferation and invasion, preventing astrocyte reactivity, and reducing M2 macrophage infiltration. This "one-two punch" approach offers a powerful combined anticancer effect through simultaneously targeting tumor cells and reshaping the tumor microenvironment, which holds considerable promise in curbing GB recurrence and provides hope for more effective future treatments.

These subtypes exhibited distinct drug sensitivities (C1 sensitive to panobinostat, MK-2206, 17-AAG; C2 sensitive to venetoclax) and predicted immunotherapy responses (C1 potentially benefiting more from anti-PD-1)...Crucially, aberrant PKM2 overexpression was linked to imatinib (IM) resistance...To mitigate vMO toxicity, IL3-Lamp2b-engineered exosomes were developed, demonstrating efficient vMO loading, targeted delivery to leukemia cells, potent PKM splicing correction, significant IM resistance reversal, and minimal stromal cell toxicity. This work defines glycolysis-based AML subtypes with therapeutic implications and establishes engineered exosome-delivered vMO as a promising strategy to overcome drug resistance in hyper-glycolytic myeloid leukemia.

LRG also showed greater sensitivity to PD-1/CTLA4 inhibitors and chemotherapeutic agents (e.g., Panobinostat and Doxorubicin). This study reveals the molecular mechanisms and clinical significance of NCCGs in CC and epithelial-origin cancers. NCCGs hold value in molecular classification, prognostic assessment, and predicting therapeutic responses, offering new markers and targets for precision medicine.

Our study examined two "first-in-class" RNA Pol I inhibitors, CX-5461 and BMH-21, which differentially regulate NK cell-activating and inhibitory ligand expression in MM. This effect was modulated by Lenalidomide and Panobinostat. Moreover, RNA Pol I inhibition enhanced Daratumumab-mediated antibody-dependent cellular cytotoxicity (ADCC) of NK cells against MM, uncovering novel immuno-mediated antitumor mechanisms.

Panobinostat, Pirinixic acid, and Fluorouracil were predicted to be the potential BCL2L12-targeted drug for HCC. Our findings offer an understanding of the Oncogenic Role of BCL2L12 associated with immune status in the prognosis of HCC and provide potential strategies for currently limited treatment.

We therefore characterized the impact of pan-HDAC inhibitor, panobinostat, and class I HDAC inhibitor, nanatinostat, on the growth, survival, and lytic reactivation of four EBV-positive cell lines: P3HR1-ZHT BL, Jijoye BL, IBL-1 immunoblastic lymphoma, and de novo infection derived lymphoblastoid cell lines (LCL). Single-cell RNA sequencing provided evidence of upregulated immune signaling pathways in this abortive lytic population. This study provides in depth characterization of lytic reactivation with a biologically relevant stimulus.