arsenic trioxide

Additionally, we critically assess the therapeutic potential of targeting this switch, emphasizing how drugs that either inhibit or promote autophagy can work together with arsenic trioxide (ATO) to combat drug resistance in solid tumors such as glioblastoma and ovarian cancer. By shifting from simple descriptions to a detailed mechanistic and contextual understanding, this review offers a valuable guide for future research aiming to harness the autophagy switch for cancer prevention and personalized treatment.

In vitro, ATO demonstrated superior cytotoxicity over doxorubicin against multiple HCC cells under hypoxia. Most importantly, in an orthotopic rat HCC model, the combined treatment exhibited powerful synergistic efficacy, attaining a remarkable 96% tumor suppression rate and significantly prolonging survival, with a favorable safety profile. This work presents a novel "embolization‑imaging‑targeted chemotherapy" strategy that simultaneously overcomes the key limitations of conventional TACE and ATO delivery, offering a promising and translatable nanoplatform for the effective treatment of advanced HCC.

Both agents mitigate ATO‑induced neurotoxicity through antioxidant, anti‑inflammatory, and anti‑apoptotic mechanisms, with their co‑administration surpassing individual efficacy. The Keap‑1/Nrf2/HO‑1 axis emerges as a critical therapeutic node, underscoring the translational potential of combined intervention.

Multidisciplinary supportive care with continuation of ATRA-ATO therapy resulted in complete hematologic and molecular remission. This case highlights the importance of recognizing and managing complex complications in APL while maintaining curative therapy.

Arsenic trioxide (ATO)-mediated radiosensitization suppresses DDR, enhances immunogenic cell death, and increases tumor-associated antigens and cytosolic dsDNA levels...The synchronized delivery of Mn2+ and accumulated cytosolic dsDNA amplifies cGAS-STING activation, promoting dendritic cell (DC) maturation, enhancing CD8+ T cell infiltration, reducing immunosuppressive Treg infiltration, and significantly inhibiting both irradiated local tumors and non-irradiated distal CRC tumors while inducing robust immune memory effects, all with no notable toxicity. This study demonstrates that effective RT sensitization, coupled with synchronized STING activation, represents a robust strategy to overcome radio-immunotherapy resistance in colorectal cancer.

Molecular docking confirmed the robust binding affinity of CA toward pathway-associated proteins. These findings indicate CA alleviates ATO-induced myocardial injury through AMPKα2/SIRT1/PGC-1α pathway modulation, suppressing Reactive Oxygen Species, oxidative stress, inflammation, mitochondrial dysfunction, and apoptosis.

P3, N=150, Recruiting, Quetzal Therapeutics

Despite prompt initiation of all-trans retinoic acid and arsenic trioxide therapy, she developed worsening respiratory distress and neurological deterioration, succumbing within 70 hours of admission...The optimal management strategies remain undefined, particularly for CNS-directed therapy. This case underscores the importance of considering extramedullary involvement in APL patients with atypical or rapidly progressive presentations.

This study demonstrated that piperine at 20 mg/kg orally was protective in arsenic trioxide-induced cardiotoxicity in an experimental rat model. This study is the first to combine serum biomarkers and ECG analysis to demonstrate piperine's cardioprotective role. It may have clinical relevance in exploring the potential of piperine to reduce arsenic trioxide-induced cardiotoxicity.

Our study establishes that CZ2, a novel organic arsenical, exhibits superior therapeutic efficacy and high selectivity in DLBCL by targeting DNMT. Our findings suggest that CZ2 represents a promising strategy to overcome epigenetic-mediated resistance, offering a potential therapeutic intervention for relapsed/refractory DLBCL and supporting its further development in rational combination regimens.

While arsenic trioxide (As(III)) demonstrates therapeutic potential through ferroptosis induction, its clinical application is severely constrained by dose-limiting systemic toxicity and consequent inflammation-mediated COX2/PGE2 pathway activation, which confers ferroptosis resistance...TCADS comprises two rationally designed self-assembling peptides incorporating As(III)-binding domains, tumor-selective targeting moieties (MMP9-responsive and Tenascin C-targeting motifs), and the COX2 antagonist naproxen (NPX)...This precision-targeted approach empowers TCADS to effectively disrupt the deleterious inflammation-ferroptosis resistance cycle, thereby successfully overcoming treatment resistance and suppressing tumor progression by 85.0% and 95.4% in subcutaneous and orthotopic tumor models, respectively. This integrated paradigm of precision-targeted delivery coupled with microenvironment modulation establishes a compelling therapeutic framework for chemoresistant HR-NB and potentially other MYCN-amplified malignancies.