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beta d galactose/neoplasms
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Structural characterization of a galactan from Ophiopogon japonicus and anti-pancreatic cancer activity of its acetylated derivative.
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A galactan ROH05 was isolated from the roots of Ophiopogon japonicus and further purified by DEAE Sepharose™ Fast Flow columns. The molecular weight of ROH05 was estimated to be 16.7kDa. ROH05 was composed of galactose only. According to the methylation analysis and the results of IR and NMR
GSH-Responsive supramolecular nanoparticles constructed by β-d-galactose-modified pillar[5]arene and camptothecin prodrug for targeted anticancer drug delivery.
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Supramolecular construction of a targeted and stimuli-responsive drug delivery system is still a challenging task. Herein, GSH-responsive supramolecular prodrug nanoparticles were constructed by the host-guest complexation between a β-d-galactose-functionalized water-soluble pillar[5]arene (GalP5)
Allomyrina dichotoma lectin-nonreactive alpha-fetoprotein in hepatocellular carcinoma and other tumors: comparison with Ricinus communis agglutinin-I.
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Allomyrina dichotoma lectin (allo A) with a specificity to beta-D-galactose was used to fractionate human alpha-fetoprotein (AFP) by affinity electrophoresis. AFP from cord sera and serum of a patient with fulminant hepatitis showed single bands with a high affinity for allo A. Some patients with
Click Chemistry-Assisted Synthesis of a β-d-Galactose-Targeted SiO2@RC Shell-Core Structure as a Nanoplatform for Metal-Based Complex Delivery.
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A facile reversed-phase microemulsion method was used to synthesize shell-core nanospheres of SiO2@RCs (SiO2-encapsuled rare-earth metal complexes). β-d-Galactose was then grafted onto the surfaces of the nanospheres through the copper(I)-catalyzed azide-alkyne cycloaddition click reaction for
Near-infrared photoimmunotherapy with galactosyl serum albumin in a model of diffuse peritoneal disseminated ovarian cancer.
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Near-infrared photoimmunotherapy (NIR-PIT) is a highly cell-selective cancer therapy based on an armed antibody conjugated with a phthalocyanine-based photo-absorber, IRDye700DX (IR700). NIR-PIT can quickly kill target cells that express specific proteins on the cellular membrane but only when the
The use of fluorescent proteins for developing cancer-specific target imaging probes.
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Target-specific imaging probes represent a promising tool in the molecular imaging of human cancer. Fluorescently-labeled target-specific probes are useful in imaging cancers because of their ability to bind a target receptor with high sensitivity and specificity. The development of probes relies
Extraction, Isolation, Structural Characterization and Anti-Tumor Properties of an Apigalacturonan-Rich Polysaccharide from the Sea Grass Zostera caespitosa Miki.
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An apigalacturonan (AGA)-rich polysaccharide, ZCMP, was isolated from the sea grass Zostera caespitosa Miki. The depolymerized fragments derived from ZCMP were obtained by either acidic degradation or pectinase degradation, and their structures were characterized by electrospray ionization
Activatable organic near-infrared fluorescent probes based on a bacteriochlorin platform: synthesis and multicolor in vivo imaging with a single excitation.
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Near infrared (NIR) fluorescent probes are ideal for in vivo imaging because they offer deeper tissue penetration and lower background autofluorescence. Although most fluorophores in this range are cyanine-based dyes, several new classes of fluorescent NIR probes have been developed. In this study,
Two-step synthesis of galactosylated human serum albumin as a targeted optical imaging agent for peritoneal carcinomatosis.
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An optical probe, RG-(gal)(28)GSA, was synthesized to improve the detection of peritoneal implants by targeting the beta-d-galactose receptors highly expressed on the cell surface of a wide variety of cancers arising from the ovary, pancreas, colon, and stomach. Evaluation of RG-(gal)(28)GSA,
Lectin histochemistry of normal lung and pulmonary adenocarcinoma.
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In order to evaluate the staining pattern of glycoconjugate profiles in adenocarcinomas of the lung, pulmonary adenocarcinomas were classified according to their: (a) degree of differentiation; (b) cellular subtyping and mucus secretion; and (c) immunohistochemical characteristics. Studies were
Enzymatic syntheses of T antigen-containing glycolipid mimicry using the transglycosylation activity of endo-alpha-N-acetylgalactosaminidase.
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Thomsen-Friedenreich antigen (T antigen) disaccharide, beta-D-galactose-(1-->3)-alpha-N-acetyl-D-galactosamine (beta-D-Gal-(1-->3)-alpha-D-GalNAc), containing glycolipid mimicry was synthesized using the transglycosylation activity of endo-alpha-N-acetylgalactosaminidase from Bacillus sp. This
Purification and characterization of a lectin-like molecule specific for galactose/N-acetyl-galactosamine from tumoricidal macrophages.
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A lectin-like molecule (macrophage lectin) was purified from murine peritoneal exudate macrophages which had been induced with an antitumor streptococcal preparation, OK-432. The purified macrophage lectin from both 3H-labeled and unlabeled macrophages after rechromatography on a
Synthesis and antitumor activities of naturally occurring oleanolic acid triterpenoid saponins and their derivatives.
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Twenty-six naturally occurring oleanolic acid saponins and their derivatives, 16 of which were synthesized in this study, were preliminarily evaluated against human cancer cells. From SAR studies, the presence of α-l-rhamnosyl residue at the terminal of both C-3 and C-28 position for oleanolic acid
Structural characterization and antitumor activity of a novel Se-polysaccharide from selenium-enriched Cordyceps gunnii.
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Selenium (Se) has been recognized as an essential element. Animals and humans absorb and retain more organic Se than inorganic Se. Bio-transformation is a major approach to transform inorganic Se to organic Se. Cordyceps gunnii (C. gunnii), well known as a Chinese edible and medicinal fungus, has a
An Amphiphilic Micromolecule Self-Assembles into Vesicles for Visualized and Targeted Drug Delivery
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Described here is the first example of the construction of multifunctional drug delivery systems by employing an amphiphilic micromolecule. The intrinsic aggregation-induced emissive and tumor-targeting amphiphilic conjugate of β-d-galactose with tetraphenylethene (TPE-Gal), in which the hydrophobic
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