Camptothecin prodrug

Author: jqiz

August undefined, 2024

WebIt is well known that camptothecin (CPT), which inhibits topoisomerase Ⅰ activity, has significant anticancer activity against various solid tumors in vitro. 29, 30 However, the major problem encountered with CPT is its extremely low solubility and side effects, which lead to the failure of clinical treatment. 31 In order to overcome the problem, … WebFeb 4, 2024 · Conventional chemotherapy and targeted therapy promote the antitumor immune response by increasing the immunogenicity of tumor cells, improving CD8+ T cell infiltration, or inhibiting immunosuppressive cells in the tumor microenvironment.

A GSH-Responsive Nanoprodrug System Based on Self-Assembly …

WebAbstract A folate receptor targeted camptothecin prodrug was synthesized using a hydrophilic peptide spacer linked to folate via a releasable disulfide carbonate linker. The conjugate was found to possess high affinity for folate receptor-expressing cells and inhibited cell proliferation in human KB cells with an IC 50 of 10 nM. WebSep 20, 2024 · Minimizing drug leakage in systemic circulation, synchronizing the in vivo fate of multiple drugs, and precisely controlling tumor locoregional drug release, remain … sierra medical group pharmacy lancaster ca

A GSH-Responsive Nanoprodrug System Based on Self-Assembly …

WebCamptothecin (CPT, 1) is a plant alkaloid from the Camptotheca acuminata tree. 83 In in vitro assay, camptothecin exhibited excellent topoisomerase I inhibitory activity but poor … WebNov 28, 2024 · Camptothecin (CPT), a DNA topoisomerase I inhibitor that induces DNA damage in cancer cells, has been widely used for the treatment of a variety of cancers, … WebSep 20, 2024 · Here, a reactive oxygen species (ROS)-responsive camptothecin (CPT) prodrug delivery system (MPEG- (TK-CPT)-PPa) is developed, in which CPT and photosensitizer pyropheophorbide-a (PPa) are concurrently conjugated to the same poly (ethylene glycol) methyl ether (MPEG) via ROS-responsive thioketal (TK) and lipid linkage. the power of boosters ny times

Activation of a camptothecin prodrug by specific …

Redox-responsive amphiphilic camptothecin prodrug nanoparticles for ...

Webnoun. camp· to· the· cin ˌkamp-tə-ˈthē-sən. : an alkaloid C20H16N2O4 from the wood of a Chinese tree (Camptotheca acuminata of the family Nyssaceae) that has shown … WebSep 11, 2007 · Camptothecin is an alkaloid isolated from the stem wood of the Chinese tree, Camptotheca acuminata. This compound selectively inhibits the nuclear enzyme … sierra mission writing deskWebGlucuronide camptothecin is a type of prodrug produced from camptothecin and glucuronide. Glucuronide, which is also referred to as glucuronoside, is substance produced by linking glucuronic acid to another substance via a glycosidic bond. The prodrug could catalyze and produce the drug camptothecin (CPT), which was discovered in 1966. sierra mineral holdings 1 limited

"WebDec 1, 2024 · Self-assembled prodrugs (SAPDs), which combine prodrug strategy and the merits of self-assembly, not only represent an appealing type of therapeutics, enabling the spontaneous organization of supramolecular nanocomposites with defined structures in aqueous environments, but also provide a new method to formulate existing drugs for … " - Camptothecin prodrug

Camptothecin prodrug

A GSH-Responsive Nanoprodrug System Based on Self …

WebSep 20, 2024 · The construction of prodrug and glucose oxidase coloaded alginate (ALG) hydrogels for PDT-combined chemotherapy of melanoma will provide a promising injectable hydrogel platform for effective treatments of cancer. Biomimetic nanoprodrugs from fatty acid modified camptothecin and albumin for enhanced pharmacotherapy. WebA novel functional reducible camptothecin (CPT) block copolymer conjugate was prepared using atom transfer radical polymerization (ATRP). The use of ATRP in the design and …

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WebNov 14, 2003 · Abstract. 7-Ethyl-10-[4-(1-piperidino)-1-piperidino]carbonyloxycamptothecin (irinotecan, CPT-11) is a camptothecin prodrug that is metabolized by carboxylesterases (CE) to the active metabolite 7-ethyl-10-hydroxycamptothecin (SN-38), a topoisomerase I inhibitor. CPT-11 has shown encouraging antitumor activity against a broad spectrum of … WebEster prodrugs are most often used to enhance the lipophilicity, and thus the passive membrane permeability, of water-soluble drugs by masking charged groups such as carboxylic acids and...

WebThe PEG-CPT prodrug is obtained by conjugation of a 40 ... Camptothecin is a natural compound isolated from the plant camptotheca accuminata. The sodium salt of … WebIntroduction. Camptothecin (CPT) is a naturally occurring alkaloid with potent antineoplastic activity against a broad spectrum of solid tumors (eg, primary and metastatic colon carcinoma, small cell lung carcinoma, and ovarian, breast, pancreatic, and stomach cancers), which inhibits DNA topoisomerase I. 1 SN38 (7-ethyl-10-hydroxyl …

National Center for Biotechnology Information WebAug 31, 2024 · We report a camptothecin (CPT) prodrug that was well formulated in solution and rapidly transformed into long-circulating nanocomplexes in vivo for …

WebJan 23, 2024 · Bio-(8)-MB-CPT thus exerted strong toxicity towards cervical cancer cells, but unlike the parent drug (camptothecin), showed no toxicity towards normal cells. Moreover, the prodrug displayed significantly enhanced antitumor efficacy in vivo and eradicated the tumor with no obvious side effects (inhibition of the tumor reached up to 99.9 %).

WebDespite the use of intensive multimodality therapy, the majority of high-risk neuroblastoma (NB) patients do not survive. Without significant improvements in delivery strategies, anticancer agents used as a first-line treatment for high-risk tumors often fail to provide clinically meaningful results in the settings of disseminated, recurrent, or refractory … sierra mist bag in boxWebNational Center for Biotechnology Information the power of booksWebJan 13, 2024 · Therapeutic conjugate approaches that alter the solubility of a conjugate “prodrug” have been used to enable NC formation and controlled release from NCs using labile linker chemistry. A limitation of this approach has been that a different linker chemistry must be used to produce an adjustable release rate for a single therapeutic. sierra middle school parker coWeb"The self-assembling camptothecin-tocopherol prodrug: An effective approach for formulating camptothecin." Biomaterials. 2015;62:176-87. PMCID: PMC4470812 PMID: 26057133. Title: Lu J, Liu C, Wang P, et al. "The self-assembling camptothecin-tocopherol prodrug: An effective approach for formulating camptothecin." Biomaterials. … the power of bowls food logoWebFeb 16, 2024 · The aim of this study was to prepare small-molecule camptothecin (CPT) prodrugs and evaluate their effectiveness in colorectal carcinoma therapy. Prodrug nanoparticles (NPs) were physicochemically characterized and evaluated for their cytotoxicity in human colon cancer (HCT116) cell lines. The antitumor efficacy of the NPs … sierra mist cranberry splash 2018WebCamptothecin and lactose act as the chemotherapy drug and targeting ligand in the drug delivery system, respectively. Since CPT-S-S-LA is an amphiphilic compound, it can self-assemble into nanoparticles with a diameter of around 110 nm. The CPT-S-S-LA nanoparticles displayed controllable drug release behavior in the physiological environment. sierra middle school bakersfield caWebAug 5, 2024 · Herein, we designed a glutathione (GSH)-responsive camptothecin (CPT) prodrug-based hybrid micellar nanoparticles (siPD-L1@HM-CPT) to achieve … the power of breath