Results 81 to 90 of about 39,854 (281)

Excited state tautomerization of camptothecin in aqueous solution

open access: yes, 1996
The effect of pH on the absorption and fluorescence spectral characteristics of 20(S)-camptothecin was studied in aqueous solution. In alkaline solution, the lactone ring of camptothecin hydrolyzes to produce camptothecin carboxylate.
Isiah M. Warner   +3 more
core   +1 more source

Molecular Docking and Pharmacological In Silico Evaluation of Camptothecin and Related Ligands as Promising HER2-Targeted Therapies for Breast Cancer

open access: yesCurrent Issues in Molecular Biology
Breast cancer is one of the leading causes of cancer-related mortality in women worldwide, highlighting the importance of effective therapies. This study evaluates the interaction between camptothecin, a potent anticancer agent, and two key receptors ...
Elmer Joel Millan-Casarrubias   +5 more
doaj   +1 more source

Characterization of the Blood–Brain Barrier Integrity and the Brain Transport of SN-38 in an Orthotopic Xenograft Rat Model of Diffuse Intrinsic Pontine Glioma

open access: yesPharmaceutics, 2020
The blood–brain barrier (BBB) hinders the brain delivery of many anticancer drugs. In pediatric patients, diffuse intrinsic pontine glioma (DIPG) represents the main cause of brain cancer mortality lacking effective drug therapy.
Catarina Chaves   +8 more
doaj   +1 more source

Cuproptosis Inducers in Cancer Therapy: State of the Art and Challenges

open access: yesThe Chemical Record, EarlyView.
Cuproptosis is emerging as a distinct copper‐dependent cell death pathway, highlighting copper as a potential metabolic vulnerability in cancer. This review examines how coordination chemistry, redox regulation, and nanomaterial design shape Cu reactivity and therapeutic outcomes.
Chiara Ragusa, Valentina Oliveri
wiley   +1 more source

Camptothecin paradoxically increases bioluminescence and luciferase expression.

open access: yes, 2014
(A) Effects of camptothecin and 5-azacytidine on bioluminescence of MPC GL-9 cells compared to survival measured by Absorbance in XTT assay at 1 week. (B) corresponding immunoblot from the same experiment showing increased levels of firefly luciferase ...
Alessio Giubellino (283359)   +5 more
core   +1 more source

Camptothecin Induces PD-L1 and Immunomodulatory Cytokines in Colon Cancer Cells

open access: yesMedicines, 2019
Background: Immunotherapy has changed the options for the treatment of various cancer types, but not colon cancer. Current checkpoint blockade approaches are ineffective in a large proportion of colon cancer cases, necessitating studies to elucidate its ...
Deepa Bedi   +3 more
doaj   +1 more source

Delivery of nano‐formulated drugs to solid tumours is selectively increased by co‐application of the vascular disrupting agent CA4P

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and purpose Nano‐formulated chemotherapeutics prolong systemic availability of drugs and can reduce systemic toxicity, but their accumulation in solid tumours is often limited and unpredictable. Broadly applicable strategies to selectively enhance tumour delivery are lacking.
Annabel Kitowski   +13 more
wiley   +1 more source

Advances in Camptothecin-Class Compounds Nanomedicines: A Comprehensive Review of Antitumor Strategies

open access: yesPharmaceutics
Camptothecin-class compounds are anticancer active ingredients extracted from the Chinese unique medicinal plant, Camptotheca acuminata. They have been widely applied in the treatment of various cancers due to their high efficacy and broad-spectrum anti ...
Mingliang Su   +8 more
doaj   +1 more source

KU80 suppresses endonuclease G activity to preserve genomic integrity

open access: yesThe FEBS Journal, EarlyView.
Under normal conditions, EndoG remains restricted to mitochondria and the genome remains intact. When KU80 is absent, EndoG translocates into the nucleus, where it promotes DNA fragmentation and genomic instability. Thus, this work highlights the importance of KU80 in tightly controlling EndoG localization to preserve genome stability.
Jargalan Batsaikhan   +8 more
wiley   +1 more source

Cytotoxic Effects of Fascaplysin against Small Cell Lung Cancer Cell Lines

open access: yesMarine Drugs, 2014
Fascaplysin, the natural product of a marine sponge, exhibits anticancer activity against a broad range of tumor cells, presumably through interaction with DNA, and/or as a highly selective cyclin-dependent kinase 4 (CDK4) inhibitor.
Gerhard Hamilton
doaj   +1 more source

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