Structures and structure-activity relationships of three mitogenic and complement fixing pectic arabinogalactans from the malian antiulcer plants Cochlospermum tinctorium A. Rich and Vernonia kotschyana Sch. Bip. ex Walp.

Abstract:

:Structures of three pectic arabinogalactans, one from Vernonia kotschyana (Vk2a) and two from Cochlospermum tinctorium (Ct50A1 and Ct50A2), and their complement fixation and induction of B cell proliferation in vitro were compared. The polysaccharide Vk2a expressed potent biological activity in both assays compared with Ct50A1 and Ct50A2. Vk2a possessed a very high molecular weight (1150 +/- 20 kDa) compared with Ct50A1 and Ct50A2 which both showed a polydisperse nature with the highest molecular weight polymers in each fraction estimated at approximately 105 kDa (Ct1a) and 640 +/- 100 kDa (Ct2a), respectively. The HMW polymers showed complement fixation in the same range as the native fractions. The arabinogalactan II content was low in Vk2a (2%) compared with that in Ct50A1 (23%) and Ct50A2 (12%). The high molecular weight polymers were subjected to digestion with a beta-d-(1, 3)-galactanase-rich fraction from Driselase, oligomers were isolated by HPAEC, and their finer structures were determined by MALDI- and ES-qoToF-MS, linkage, and monosaccharide composition analyses. Vk2a consists of both a galacturonan core and a rhamnogalacturonan core rich in neutral side chains. The backbones of both Ct-polysaccharides consist mainly of RG-I regions with numerous neutral side chains dominated by galactosyl residues, whereas the homogalacturonan regions seem to be small. Differences in the chain lengths of the 6-linked galacto-oligosaccharides attached to the 3-linked galactan core could not be related to the differences in the potencies of the biological activities observed.

journal_name

Biomacromolecules

journal_title

Biomacromolecules

authors

Nergard CS,Kiyohara H,Reynolds JC,Thomas-Oates JE,Matsumoto T,Yamada H,Patel T,Petersen D,Michaelsen TE,Diallo D,Paulsen BS

doi

10.1021/bm050355g

keywords:

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

71-9

issue

1

eissn

1525-7797

issn

1526-4602

journal_volume

7

pub_type

杂志文章
  • Double-Network Hydrogels Including Enzymatically Crosslinked Poly-(2-alkyl-2-oxazoline)s for 3D Bioprinting of Cartilage-Engineering Constructs.

    abstract::Double-network (DN) hydrogels are fabricated from poly(2-ethyl-2-oxazoline) (PEOXA)-peptide conjugates, which can be enzymatically crosslinked in the presence of Sortase A (SA), and physical networks of alginate (Alg), yielding matrices with improved mechanical properties with respect to the corresponding PEOXA and Al...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.9b01266

    authors: Trachsel L,Johnbosco C,Lang T,Benetti EM,Zenobi-Wong M

    更新日期:2019-12-09 00:00:00

  • Structural studies of an exopolysaccharide produced by Streptococcus thermophilus THS.

    abstract::The structure of an extracellular polysaccharide (EPS) from Streptococcus thermophilus THS has been determined. A combination of component analysis, methylation analysis and NMR spectroscopy shows that the polysaccharide is composed of pentasaccharide repeating units. Sequential information was obtained by two-dimensi...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm0496514

    authors: Nordmark EL,Yang Z,Huttunen E,Widmalm G

    更新日期:2005-01-01 00:00:00

  • Ferulic Acid-Based Polymers with Glycol Functionality as a Versatile Platform for Topical Applications.

    abstract::Ferulic acid-based polymers with aliphatic linkages have been previously synthesized via solution polymerization methods, yet they feature relatively slow ferulic acid release rates (∼11 months to 100% completion). To achieve a more rapid release rate as required in skin care formulations, ferulic acid-based polymers ...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.5b00824

    authors: Ouimet MA,Faig JJ,Yu W,Uhrich KE

    更新日期:2015-09-14 00:00:00

  • Iridescent Cellulose Nanocrystal Films Modified with Hydroxypropyl Cellulose.

    abstract::The introduction of polymers into a chiral nematic cellulose nanocrystal (CNC) matrix allows for the tuning of optical and mechanical properties, enabling the development of responsive photonic materials. In this study, we explored the incorporation of hydroxypropyl cellulose (HPC) into a CNC film prepared by slow eva...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.0c00056

    authors: Walters CM,Boott CE,Nguyen TD,Hamad WY,MacLachlan MJ

    更新日期:2020-03-09 00:00:00

  • Self-assembling peptide inspired by a barnacle underwater adhesive protein.

    abstract::An underwater bioadhesive generally comprises a multiprotein complex that provides a molecular basis for self-assembly. We report here a new class of self-assembling peptide inspired by a 20 kDa barnacle cement protein. Studies on the chemically synthesized 24-residue peptide have revealed that (1) it underwent irreve...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm0612236

    authors: Nakano M,Shen JR,Kamino K

    更新日期:2007-06-01 00:00:00

  • Relation between the degree of acetylation and the electrostatic properties of chitin and chitosan.

    abstract::A series of chitosan/chitin samples with DA's varying between 5.2 and 89% was prepared from the reacetylation under soft conditions of a unique chitosan sample allowing the preservation of the chain distribution. The study of the variation of pH for the same concentration of amine groups, at different ionic strengths,...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm015531+

    authors: Sorlier P,Denuzière A,Viton C,Domard A

    更新日期:2001-10-01 00:00:00

  • Engineered mutations change the structure and stability of a virus-like particle.

    abstract::The single-coat protein (CP) of bacteriophage Qβ self-assembles into T = 3 icosahedral virus-like particles (VLPs), of interest for a wide range of applications. These VLPs are very stable, but identification of the specific molecular determinants of this stability is lacking. To investigate these determinants along w...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm300590x

    authors: Fiedler JD,Higginson C,Hovlid ML,Kislukhin AA,Castillejos A,Manzenrieder F,Campbell MG,Voss NR,Potter CS,Carragher B,Finn MG

    更新日期:2012-08-13 00:00:00

  • Synthesis of various glycopolymer architectures via RAFT polymerization: from block copolymers to stars.

    abstract::Well-defined linear poly(acryloyl glucosamine) (PAGA) exhibiting molar masses ranging from 3 to 120 K and low polydispersities have been prepared via reversible addition-fragmentation chain transfer polymerization (RAFT) in aqueous solution without recourse to protecting group chemistry. The livingness of the process ...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm0506086

    authors: Bernard J,Hao X,Davis TP,Barner-Kowollik C,Stenzel MH

    更新日期:2006-01-01 00:00:00

  • Nanotubes, Plates, and Needles: Pathway-Dependent Self-Assembly of Computationally Designed Peptides.

    abstract::Computationally designed peptides form desired antiparallel, tetrameric coiled-coil bundles that hierarchically assemble into a variety of well-controlled nanostructures depending on aqueous solution conditions. The bundles selectively self-assemble into different structures: nanotubes, platelets, or needle-like struc...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.8b01163

    authors: Tian Y,Polzer FB,Zhang HV,Kiick KL,Saven JG,Pochan DJ

    更新日期:2018-11-12 00:00:00

  • Facile Synthesis of Reductively Degradable Biopolymers Using Cystamine Diisocyanate as a Coupling Agent.

    abstract::Reductively degradable biopolymers have emerged as a unique class of smart biomedical materials. Here, a functional coupling agent, cystamine diisocyanate (CDI), was designed to offer a facile access to reductively degradable biopolymers via polycondensation with various diols. CDI was readily obtained with a decent y...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.5b01578

    authors: Wang X,Zhang J,Cheng R,Meng F,Deng C,Zhong Z

    更新日期:2016-03-14 00:00:00

  • Wet-spinning of recombinant silk-elastin-like protein polymer fibers with high tensile strength and high deformability.

    abstract::A recombinant silk-elastin-like protein copolymer SELP-47K containing tandemly repeated amino acid sequence blocks from silk, GAGAGS, and elastin, GVGVP, was fabricated into microdiameter fibers using a wet-spinning technique. Raman spectral analysis revealed the formation of antiparallel beta-sheet crystals of the si...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm801296r

    authors: Qiu W,Teng W,Cappello J,Wu X

    更新日期:2009-03-09 00:00:00

  • Bioinspired pH- and Temperature-Responsive Injectable Adhesive Hydrogels with Polyplexes Promotes Skin Wound Healing.

    abstract::Despite great potential, the delivery of genetic materials into cells or tissues of interest remains challenging owing to their susceptibility to nuclease degradation, lack of permeability to the cell membrane, and short in vivo half-life, which severely restrict their widespread use in therapeutics. To surmount these...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.8b00819

    authors: Le TMD,Duong HTT,Thambi T,Giang Phan VH,Jeong JH,Lee DS

    更新日期:2018-08-13 00:00:00

  • Tumor Microenvironmental pH and Enzyme Dual Responsive Polymer-Liposomes for Synergistic Treatment of Cancer Immuno-Chemotherapy.

    abstract::Despite recent advances in tumor treatment through cancer immunotherapy, the efficacy of this approach remains to be improved. Looking forward to high rates of objective clinical response, cancer immunotherapy combined with chemotherapy has gained increasing attention recently. Here, we constructed liposomes with matr...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.8b01510

    authors: Liu Y,Chen XG,Yang PP,Qiao ZY,Wang H

    更新日期:2019-02-11 00:00:00

  • Environmentally Benign Nanoantibiotics with a Built-in Deactivation Switch Responsive to Natural Habitats.

    abstract::The massive use of antibiotics in healthcare and agriculture has led to their artificial accumulation in natural habitats, which risks the structure and function of the microbial communities in ecosystems, threatens food and water security, and accelerates the development of resistome. Ideally, antibiotics should rema...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.0c00163

    authors: Zheng W,Anzaldua M,Arora A,Jiang Y,McIntyre K,Doerfert M,Winter T,Mishra A,Ma H,Liang H

    更新日期:2020-06-08 00:00:00

  • Fully convergent solid phase synthesis of antifreeze glycoprotein analogues.

    abstract::The convergent solid phase synthesis of C-linked analogues of antifreeze glycoprotein (AFGP) has been achieved. In this approach, three to six carbohydrate residues are simultaneously coupled to a resin-bound polypeptide. Glycopeptides ranging from 1.6 to 3.0 kDa are easily prepared in 26-44% yield demonstrating the u...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm0155120

    authors: Eniade A,Ben RN

    更新日期:2001-07-01 00:00:00

  • Curcumin encapsulation in submicrometer spray-dried chitosan/Tween 20 particles.

    abstract::Optimal curcumin delivery for medicinal applications requires a drug delivery system that both solubilizes curcumin and prevents degradation. To achieve this, curcumin has been encapsulated in submicrometer chitosan/Tween 20 particles via a benchtop spray-drying process. Spray-drying parameters have been optimized usi...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm300564v

    authors: O'Toole MG,Henderson RM,Soucy PA,Fasciotto BH,Hoblitzell PJ,Keynton RS,Ehringer WD,Gobin AS

    更新日期:2012-08-13 00:00:00

  • Sequential Thiol-Ene and Tetrazine Click Reactions for the Polymerization and Functionalization of Hydrogel Microparticles.

    abstract::Click chemistry is a versatile tool for the synthesis and functionalization of polymeric biomaterials. Here, we describe a versatile new strategy for producing bioactive, protein-functionalized poly(ethylene glycol) (PEG) hydrogel microparticles that is based on sequential thiol-ene and tetrazine click reactions. Brie...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.6b00990

    authors: Jivan F,Yegappan R,Pearce H,Carrow JK,McShane M,Gaharwar AK,Alge DL

    更新日期:2016-11-14 00:00:00

  • Design of an injectable in situ gelation biomaterials for vitreous substitute.

    abstract::To adapt the physical properties of living materials to their biological function, nature developed various types of polymers with outstanding physical behavior. One example is the vitreous body, which is important intraocular elements not only because of its optical and mechanical performances, but also due to its im...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm201012f

    authors: Annaka M,Mortensen K,Vigild ME,Matsuura T,Tsuji S,Ueda T,Tsujinaka H

    更新日期:2011-11-14 00:00:00

  • Esterase-Responsive Polypeptide Vesicles as Fast-Response and Sustained-Release Nanocompartments for Fibroblast-Exempt Drug Delivery.

    abstract::Enzyme-responsive polypeptide vesicles have attracted considerable attention for precision theranostics because of their biocompatibility, biodegradability, and unique secondary conformation transition triggered by the catalytic actions of enzymes. These promising potentials of polypeptide vesicles could be limited in...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.0c01251

    authors: Duan W,Ji S,Guan Y,Mu X,Fang S,Lu Y,Zhou X,Sun J,Li Z

    更新日期:2020-12-14 00:00:00

  • Alterations in mucus barrier function and matrix structure induced by guluronate oligomers.

    abstract::The effect of guluronate oligomers on the barrier properties of mucous matrices was investigated in terms of the mobility of nanoparticles in mucous matrices by fluorescence recovery after photobleaching (FRAP), cellular uptake of nanoparticles in mucus secreting cells (HT29-MTX), and mucin matrix architecture by scan...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm500464b

    authors: Nordgård CT,Nonstad U,Olderøy MØ,Espevik T,Draget KI

    更新日期:2014-06-09 00:00:00

  • Nanocarrier Composed of Magnetite Core Coated with Three Polymeric Shells Mediates LCS-1 Delivery for Synthetic Lethal Therapy of BLM-Defective Colorectal Cancer Cells.

    abstract::Synthetic lethality is a molecular-targeted therapy for selective killing of cancer cells. We exploited a lethal interaction between superoxide dismutase 1 inhibition and Bloom syndrome gene product (BLM) defect for the treatment of colorectal cancer (CRC) cells (HCT 116) with a customized lung cancer screen-1-loaded ...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.7b01607

    authors: Gupta A,Ahmad A,Singh H,Kaur S,K M N,Ansari MM,Jayamurugan G,Khan R

    更新日期:2018-03-12 00:00:00

  • "Tandem" Nanomedicine Approach against Osteoclastogenesis: Polysulfide Micelles Synergically Scavenge ROS and Release Rapamycin.

    abstract::We show the first example of a synergic approach of oxidant (ROS) scavenging carrier and ROS-responsive drug release in the context of a potential therapy against osteoporosis, aiming to inhibit the differentiation of inflammatory cells into osteoclasts. In our "tandem" approach, a branched amphiphilic, PEGylated poly...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.9b01348

    authors: El Mohtadi F,d'Arcy R,Burke J,Rios De La Rosa JM,Gennari A,Marotta R,Francini N,Donno R,Tirelli N

    更新日期:2020-02-10 00:00:00

  • Enhanced plastic deformations of nanofibrillated cellulose film by adsorbed moisture and protein-mediated interactions.

    abstract::Biological composites are typically based on an adhesive matrix that interlocks rigid reinforcing elements in fiber composite or brick-and-mortar assemblies. In nature, the adhesive matrix is often made up of proteins, which are also interesting model systems, as they are unique among polymers in that we know how to e...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm501514w

    authors: Malho JM,Ouellet-Plamondon C,Rüggeberg M,Laaksonen P,Ikkala O,Burgert I,Linder MB

    更新日期:2015-01-12 00:00:00

  • Collagenase-labile polyurethane urea synthesis and processing into hollow fiber membranes.

    abstract::As a means to stimulate wound healing, a hollow fiber membrane system might be placed within a wound bed to provide local and externally regulated controlled delivery of regenerative factors. After sufficient healing, it would be desirable to triggerably degrade these fibers as opposed to pulling them out. Accordingly...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm500552f

    authors: Fu HL,Hong Y,Little SR,Wagner WR

    更新日期:2014-08-11 00:00:00

  • Self-cross-linking polyelectrolyte complexes for therapeutic cell encapsulation.

    abstract::Self-cross-linking polyelectrolytes are used to strengthen the surface of calcium alginate beads for cell encapsulation. Poly([2-(methacryloyloxy)ethyl]trimethylammonium chloride), containing 30 mol % 2-aminoethyl methacrylate, and poly(sodium methacrylate), containing 30 mol % 2-(methacryloyloxy)ethyl acetoacetate, w...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm800580c

    authors: Mazumder MA,Shen F,Burke NA,Potter MA,Stöver HD

    更新日期:2008-09-01 00:00:00

  • Characterization of gels composed of blends of collagen I, collagen III, and chondroitin sulfate.

    abstract::Type I collagen is explored heavily for use in biomaterials, but the role of other extracellular matrix components in regulating collagen organization is gaining attention. We show that as the ratio of type III to type I collagen increases, fibril diameter decreases. A mixture of the two collagen types results in a mo...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm800888u

    authors: Stuart K,Panitch A

    更新日期:2009-01-12 00:00:00

  • Non-fouling hydrogels of 2-hydroxyethyl methacrylate and zwitterionic carboxybetaine (meth)acrylamides.

    abstract::Five poly(betaine) brushes were prepared, and their resistance to blood plasma fouling was studied. Two carboxybetaines monomers were copolymerized with 2-hydroxyethyl methacrylate (HEMA) to prepare novel hydrogels. By increasing the content of the zwitterionic comonomer, a 4-fold increase in the water content could b...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm301441x

    authors: Kostina NY,Rodriguez-Emmenegger C,Houska M,Brynda E,Michálek J

    更新日期:2012-12-10 00:00:00

  • Noncovalent liposome linkage and miniaturization of capsosomes for drug delivery.

    abstract::We report the synthesis of poly(methacrylic acid)-co-(oleyl methacrylate) with three different amounts of oleyl methacrylate and compare the ability of these polymers with that of poly(methacrylic acid)-co-(cholesteryl methacrylate) (PMA(c)) to noncovalently anchor liposomes to polymer layers. We subsequently assemble...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm101020e

    authors: Hosta-Rigau L,Chandrawati R,Saveriades E,Odermatt PD,Postma A,Ercole F,Breheney K,Wark KL,Städler B,Caruso F

    更新日期:2010-12-13 00:00:00

  • Polymer manipulation and nanofabrication in real time using transmission electron microscopy.

    abstract::Here we present time-resolved in situ transmission electron microscopy (TEM) observations and real-time manipulation of nematic ordered cellulose and ultradrawn polyethylene films. Drawn films of these two polymers exhibited a unique response to the low-dose electron beam. Electron beam damage was minimal based on ret...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/bm060546z

    authors: Brown RM Jr,Barnes Z,Sawatari C,Kondo T

    更新日期:2007-01-01 00:00:00

  • Zooming in: Structural Investigations of Rheologically Characterized Hydrogen-Bonded Low-Methoxyl Pectin Networks.

    abstract::Self-assembled hydrogen-bonded networks of the polysaccharide pectin, a mechanically functional component of plant cell walls, have been of recent interest as biomimetic exemplars of physical gels, and the microrheological and strain-stiffening behaviors have been previously investigated. Despite this detailed rheolog...

    journal_title:Biomacromolecules

    pub_type: 杂志文章

    doi:10.1021/acs.biomac.5b00870

    authors: Mansel BW,Chu CY,Leis A,Hemar Y,Chen HL,Lundin L,Williams MA

    更新日期:2015-10-12 00:00:00