Category: 70539-42-3

Di Meo, Chiara published the artcilePolyaspartamide-Doxorubicin Conjugate as Potential Prodrug for Anticancer Therapy, Related Products of alcohols-buliding-blocks, the publication is Pharmaceutical Research (2015), 32(5), 1557-1569, database is CAplus and MEDLINE.

The purpose of this study was to synthesize a new polymeric prodrug based on α,β-poly(N-2-hydroxyethyl)(2-aminoethylcarbamate)-d,l-aspartamide copolymer bearing amine groups in the side chain (PHEA-EDA), covalently linked to the anticancer drug doxorubicin and to test its potential application in anticancer therapy. The drug was previously derivatized with a biocompatible and hydrophilic linker, leading to a doxorubicin derivative highly reactive with amino groups of PHEA-EDA. The PHEA-EDA-DOXO prodrug was characterized in terms of chem. stability. The pharmacokinetics, biodistribution and cytotoxicity of the product was investigated in vitro and in vivo on human breast cancer MCF-7 and T47D cell lines and NOD-SCID mice bearing a MCF-7 human breast carcinoma xenograft. Data collected were compared to those obtained using free doxorubicin. The final polymeric product is water soluble and easily hydrolysable in vivo, due to the presence of ester and amide bonds along the spacer between the drug and the polymeric backbone. In vitro tests showed a retarded cytotoxic effect on tumor cells, whereas a significant improvement of the in vivo antitumor activity of PHEA-EDA-DOXO and a survival advantage of the treated NOD-SCID mice was evidenced, compared to that of free doxorubicin. The features of the PHEA-EDA-DOXO provide a potential protection of the drug from the plasmatic enzymic degradation and clearance, an improvement of the blood pharmacokinetic parameters and a suitable body biodistribution. The data collected support the promising rationale of the proposed macromol. prodrug PHEA-EDA-DOXO for further potential development and application in the treatment of solid cancer diseases.

Pharmaceutical Research published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jahng, Wan Jin published the artcileLecithin retinol acyltransferase forms functional homodimers. [Erratum to document cited in CA137:59457], COA of Formula: C18H20N2O12, the publication is Biochemistry (2002), 41(23), 7528, database is CAplus.

In the legend of Figure 2, all millimolar (mM) concentrations should be micromolar (μM). In the legend of Figure 4, the concentrations of RPE and BMH in lane 3 should be 10 μM and those of RPE and BMH in lane 4 should be 50 μM. In footnote c of Table 1, C# is carbamidomethylated cysteine.

Biochemistry published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, COA of Formula: C18H20N2O12.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Jahng, Wan Jin published the artcileLecithin Retinol Acyltransferase Forms Functional Homodimers, Recommanded Product: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, the publication is Biochemistry (2002), 41(20), 6311-6319, database is CAplus and MEDLINE.

Membrane-bound lecithin retinol acyltransferase (LRAT), an essential enzyme in vitamin A processing, catalyzes the formation of retinyl esters from vitamin A and lecithin. Cloned and expressed LRAT has a mol. mass of 25.3 kDa. The enzyme is not homologous to known enzymes and is, therefore, of substantial interest mechanistically. Along these lines, the functional protomeric state of LRAT is of importance. Gel electrophoretic studies on LRAT in the presence of SDS and disulfide reducing agents show the expected 25 kDa monomer. However, gel electrophoresis in the absence of a reducing agent and/or strong denaturing conditions reveals substantial dimer formation. LRAT monomers can be efficiently and irreversibly cross-linked by thiol reactive bismaleimides in retinal pigment epithelial (RPE) membranes generating LRAT homodimers. Cross-linked LRAT homodimers are fully active catalytically. The experiments suggest that LRAT monomers interact in membranes and form functional homodimers through protein-protein interactions and disulfide bond formation.

Biochemistry published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Recommanded Product: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Bhattacherjee, Abhishek published the artcileArgpyrimidine-tagged rutin-encapsulated biocompatible (ethylene glycol dimers) nanoparticles: Application for targeted drug delivery in experimental diabetes (Part 2), Related Products of alcohols-buliding-blocks, the publication is International Journal of Pharmaceutics (Amsterdam, Netherlands) (2017), 528(1-2), 8-17, database is CAplus and MEDLINE.

Diabetes mellitus is characterized by hyperglycemia and associated complications. However, long-term diabetes control is not often sustained by currently available therapeutic approaches. Research on nanoparticle-mediated drug delivery systems is in progress. Here we have tested a ligand (argpyrimidine)-tagged drug (rutin)-encapsulated biocompatible (ethylene glycol dimers) nanoparticle for targeted drug delivery in streptozotocin-induced diabetic rats. Argpyrimidine, being an advanced glycation end product (AGE), directs the nanoparticles to interact with cell surface receptors of AGEs (RAGE) and delivers the drug into the cells. The bioflavonoid rutin possesses antihyperglycemic property, and has been used for nanocapsulation. Two doses of nanoparticles containing 20 mg rutin/kg body weight were administered (i.v. at 7 days interval) into streptozotocin-induced diabetic rats. Compared to free rutin, nanoparticle treatment appears to be significantly more effective in controlling the diabetogenic effects – hyperglycemia, hyperlipidemia, oxidative stress, etc, including heart-associated complications. This approach may thus be explored for drug delivery in the treatment of diabetes mellitus.

International Journal of Pharmaceutics (Amsterdam, Netherlands) published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Sereikaite, Jolanta published the artcileCongo red interaction with α-proteins, Quality Control of 70539-42-3, the publication is Acta Biochimica Polonica (2006), 53(1), 87-91, database is CAplus.

The ability of Congo red to form complexes with α-proteins, human growth hormone and human interferon-α2b, was found by absorption difference spectroscopy. A human growth hormone-Congo red complex was isolated by gel-permeation chromatog., and its visible absorption spectrum was registered in comparison to free dye. The ability of Congo red to induce dimerization of human growth hormone was demonstrated using chem. crosslinking agents 1,3,5-triacryloyl-hexahydro-s-triazine and ethylene glycol bis(succinimidylsuccinate).

Acta Biochimica Polonica published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C11H10O, Quality Control of 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Sereikaite, Jolanta published the artcileCongo red interaction with alpha-proteins., HPLC of Formula: 70539-42-3, the publication is Acta biochimica Polonica (2006), 53(1), 87-92, database is MEDLINE.

The ability of Congo red to form complexes with alpha-proteins, human growth hormone and human interferon-alpha2b, was found by absorption difference spectroscopy. A human growth hormone-Congo red complex was isolated by gel-permeation chromatography, and its visible absorption spectrum was registered in comparison to free dye. The ability of Congo red to induce dimerization of human growth hormone was demonstrated using chemical cross-linking agents 1,3,5-triacryloyl-hexahydro-s-triazine and ethylene glycol bis(succinimidylsuccinate).

Acta biochimica Polonica published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H26ClN3O, HPLC of Formula: 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Sawyer, Dennis E. published the artcileThe use of an in vitro sperm activation assay to detect chemically induced damage of human sperm nuclei, Name: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, the publication is Reproductive Toxicology (1995), 9(4), 351-7, database is CAplus and MEDLINE.

We report that human sperm chem. damaged in vitro by treatment with a reversible crosslinker, ethylene glycol bis(sulfosuccinimidylsuccinate; SEGS), display abnormal chromatin decondensation when analyzed in the human sperm activation assay (HSAA). Less than 20% of SEGS-treated sperm fully decondensed, vs. 97% of control sperm. Chem. reversal of the crosslinks by treatment with 5 μM hydroxylamine restored full decondensation in 76% of treated sperm. These results demonstrate that chem. damaged sperm respond abnormally in the HSAA, and that chem. damage to sperm nuclei can be detected using the HSAA. Thus, there is potential for the HSAA to be used to detect chem. alterations of sperm nuclei from men exposed to environmental toxicants.

Reproductive Toxicology published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Name: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Rehman, Saima published the artcileCross-linked enzyme aggregates (CLEAs) of Penicillium notatum lipase enzyme with improved activity, stability and reusability characteristics, Name: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, the publication is International Journal of Biological Macromolecules (2016), 1161-1169, database is CAplus and MEDLINE.

Cross-linked enzyme aggregates (CLEAs) are considered as an effective tool for the immobilization of enzyme. In this study, Pencillium notatum lipase (PNL) was immobilized as carrier free cross-linked enzyme aggregates using glutaraldehyde (GLA) and Ethylene glycol-bis [succinic acid N-hydroxysuccinimide] (EG-NHS) as crosslinking agents. The optimal conditions for the synthesis of an efficient lipase CLEAs such as precipitant type, the nature and amount of crosslinking reagent, and crosslinking time were optimized. The recovered activities of CLEAs were considerably dependent on the concentration of GLA; however, the activity recovery was not severely affected by EG-NHS as a mild cross-linker. The EG-NHS aggregates displayed superior hydrolytic (52.08 ± 2.52%) and esterification (64.42%) activities as compared to GLA aggregates which showed 23.8 ± 1.86 and 34.54% of hydrolytic and esterification activity, resp. Morphol. anal. by fluorescence and scanning electron microscope revealed that EG-NHS aggregates were smaller in size with larger surface area compared to GLA aggregates. The pH optima of both types of CLEAs were displaced to slightly alk. region and higher temperature as compared to native enzyme. Highest enzyme activity of CLEAs was achieved at the pH of 9.0 and 42 °C temperature Moreover, a significant improvement in the thermal resistance was also recorded after immobilization. After ten reusability cycles in aqueous medium, GLA and EG-NHS cross-linked lipase CLEAs preserved 63.62% and 70.9% of their original activities, resp. The results suggest that this novel CLEA-lipase is potentially usable in many industrial applications.

International Journal of Biological Macromolecules published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Name: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hayes, Nandini V. L. published the artcileSelective calcium-dependent interaction of calmodulin with the head domain of synapsin 1, SDS of cas: 70539-42-3, the publication is Biochemical Journal (1991), 275(1), 93-7, database is CAplus and MEDLINE.

The calcium-dependent regulatory protein calmodulin is a critical element in the machinery regulating exocytosis at nerve terminals. T. Okabe and K. Sobue (1987) showed that calmodulin interacts with one of the proteins intimately connected with the neuronal exocytotic process, i.e. synapsin 1. Here, the site at which calmodulin interacts with synapsin 1 was studied. It is possible to generate chem. crosslinked Ca²⁺-dependent complexes between synapsin 1 and calmodulin in vitro, and covalent crosslinking was used in conjunction with calmodulin affinity chromatog. to identify fragments of synapsin 1 that interact with calmodulin. Ca²⁺-dependent calmodulin binding is restricted to the head domain (residues 1-453 in bovine synapsin 1). Within this domain the binding site is located in a unique 11-kDa Staphylococcus aureus V8 proteinase-generated fragment. This fragment does not contain the site for cAMP-dependent phosphorylation and therefore does not represent the N terminus of the protein.

Biochemical Journal published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, SDS of cas: 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Di Caprio, Nikolas published the artcileCollagen Stiffness and Architecture Regulate Fibrotic Gene Expression in Engineered Adipose Tissue, Quality Control of 70539-42-3, the publication is Advanced Biosystems (2020), 4(6), 1900286, database is CAplus and MEDLINE.

Adipose tissue (AT) has a dynamic extracellular matrix (ECM) surrounding adipocytes that allows for remodeling during metabolic fluctuations. During the progression of obesity, AT has increased ECM deposition, stiffening, and remodeling, resulting in a pro-fibrotic dysfunctional state. Here, the incorporation of ethylene glycol-bis-succinic acid N-hydroxysuccinimide ester (PEGDS) allows for control over 3D collagen hydrogel stiffness and architecture to investigate its influence on adipocyte metabolic and fibrotic function. Upon stiffening and altering ECM architecture, adipocytes did not alter their expression of key adipokines, leptin, and adiponectin. However, they do increase actin cytoskeletal fiber formation, pro-fibrotic gene expression, ECM deposition, and remodeling within a stiffer, 3D collagen hydrogel. For example, COL6A3 gene expression is upregulated approx. twofold, resulting in increased deposition of pericellular collagen VI alpha 3 surrounding adipocytes. Furthermore, inhibition of actin contractility results in a reversal of pro-fibrotic gene expression and ECM deposition, indicating that adipocytes are mediating mech. cues through actin cytoskeletal networks. This study demonstrates that ECM stiffness and architecture plays a critical regulatory role in adipocyte fibrotic function and contributes to the overall pro-fibrotic dysfunctional state of AT during the progression of obesity and AT fibrosis.

Advanced Biosystems published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Quality Control of 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts