Camptothecin
It inhibits the enzyme topoisomerase I, leading to the accumulation of DNA single-strand breaks and cell death.
Camptothecin and its derivatives have shown promising results in the treatment of various cancers, including lung, ovarian, and colorectal cancers.
Researchers can utilize the PubCompare.ai platform to efficiently locate the best protocols from literature, preprints, and patents, using AI-driven comparisons to identify the optimal methods and products for their Camptothecin research needs.
This innovative solution can help streamline Camptothecin studies and enhance the reproducibility and accuracy of thier findings.
Most cited protocols related to «Camptothecin»
Quiescence was induced in KG1a cells by contact with BM MSCs [13] (link). Adherent culture-amplified MSCs were used at passage 2 (P2). KG1a cells were co-cultured on P2-MSCs for 72 h (37°C in 95% humidified air and 5% CO2) at a starting concentration of 1.5×104/cm2.
The accumulation of KG1a cells in the M phase was induced by exposure to colcemid (KaryoMax Colcemid, Life Technologies), used for arresting the dividing cell at metaphase of mitosis. Cells were cultured 30 min and 1 h with colcemid at a final concentration of 0.1 µg/mL.
Lymphocytes stimulation was induced by exposure to phytohemagglutinin (PHA) (Remel™, Oxoid™, Haarlem, The Netherlands), which is used to stimulate mitotic division of lymphocytes. Whole blood cells were cultured 72 h with PHA at a final concentration of 170 µg/mL according to the manufacturer’s recommandations.
All experiments were performed in triplicate.
Most recents protocols related to «Camptothecin»
Example 18
a.1) Synthesis of camptothecin prodrug 1: Camptothecin prodrug (1) will be produced by the direct coupling of the compound with PAzPC (fatty acid modified oxidized lipid 16:0-9:0 COOH PC) in presence of DCC/DMAP mediated coupling protocol.
a.2) Synthesis of camptothecin prodrug 2: Camptothecin will be activated with bis(4-nitrophenyl) carbonate followed by reacting with monoboc-ethylendimine to produce 6. In a typical experimental procedure, under a N2 atmosphere, a mixture of camptothecin, bis(4-nitrophenyl) carbonate and DMAP in dry CH2Cl2 will be stirred for 7 h. The reaction mixture will be diluted with CH2Cl2 and washed with H2O. The organic layer will be dried (Na2SO4) and concentrated. Flash chromatography (EtOAc-hexane) will be used to yield the activated fumagillol. Monoboc-protected ethylendiamine will then be coupled to prepare intermediate-6. The product will be recovered and immediately be subjected to DCC/DMAP mediated coupling with PAzPC. The chemical identity of both analogues will be confirmed by NMR and mass-spectrometric anayses.
Standard YPD agar has pH 5.5. To make YPD agar plates with alkaline pH, we titrated melted YPD agar with 10 N NaOH until pH 8.0 was reached. The wsc1::KAN knockout strain was used as a positive control for the alkaline agar plates28 (link).
The following chemicals were used: Hydroxyurea (HU, MP Biomedicals, #102023), doxorubicin (DOX, MilliporeSigma, #25316-40-9), caffeine (Sigma-Aldrich, #C0750), ATM inhibitor (KU55933, Selleckchem, #S1092), ATR inhibitor (VE-821, Selleckchem, #S8007), cycloheximide (CHX, Fluka analytical, #01810), etoposide (Sigma-Aldrich, #E1383), camptothecin (Sigma-Aldrich, #C9911), G418 sulfate (Thermo Fisher Scientific, #10131035), MG132 (Calbiochem, #133407-82-6), cisplatin (R&D systems, #15663-27-1), propidium iodide (PI, Thermo Fisher Scientific, #P1304MP), and isopropyl-beta-D-thiogalactopyranoside (IPTG, RPI research products international, # 367-93-1).
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More about "Camptothecin"
This potent compound inhibits the essential enzyme topoisomerase I, leading to the accumulation of DNA single-strand breaks and ultimately, cell death.
Camptothecin and its derivatives have demonstrated promising results in the treatment of various cancers, such as lung, ovarian, and colorectal cancers.
Researchers can leverage the PubCompare.ai platform to efficiently locate the best protocols from literature, preprints, and patents.
This AI-driven solution allows for seamless comparisons, helping identify the optimal methods and products for their Camptothecin research needs.
By utilizing this innovative platform, researchers can streamline their Camptothecin studies, enhancing the reproducibility and accuracy of their findings.
Camptothecin's mechanism of action involves inhibiting the topoisomerase I enzyme, which plays a crucial role in DNA replication and transcription.
This inhibition leads to the accumulation of DNA single-strand breaks, ultimately triggering cell death.
Etoposide, another anticancer agent, also targets topoisomerase II, a related enzyme, while Cisplatin and Hydroxyurea employ different mechanisms to induce cell death.
The use of DMSO (Dimethyl Sulfoxide) and FBS (Fetal Bovine Serum) are common in Camptothecin research, as they facilitate the solubility and cellular uptake of the compound.
Doxorubicin and Cycloheximide, on the other hand, are commonly used as positive controls in Camptothecin studies, as they possess their own potent anticancer properties.
By incorporating the insights gained from the MeSH term description and the Metadescription, researchers can optimize their Camptothecin studies, leveraging the power of the PubCompare.ai platform to streamline their research processes and enhance the reproducibility and accuracy of their findings.