1
|
Heimburg-Molinaro J, Almogren A, Morey S, Glinskii OV, Roy R, Wilding GE, Cheng RP, Glinsky VV, Rittenhouse-Olson K. Development, characterization, and immunotherapeutic use of peptide mimics of the Thomsen-Friedenreich carbohydrate antigen. Neoplasia 2009; 11:780-92. [PMID: 19649208 PMCID: PMC2713588 DOI: 10.1593/neo.09504] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 04/22/2009] [Accepted: 04/24/2009] [Indexed: 01/25/2023]
Abstract
The tumor-associated carbohydrate Thomsen-Friedenreich antigen (TF-Ag; Galbeta1-3GalNAcalpha-O-Ser/Thr) is overexpressed on the cell surface of several types of tumor cells, contributing to cancer cell adhesion and metastasis to sites containing TF-Ag-binding lectins. A highly specific immunoglobulin G(3) monoclonal antibody (Ab) developed to TF-Ag (JAA-F11) impedes TF-Ag binding to vascular endothelium, blocking a primary metastatic step and providing a survival advantage. In addition, in patients, even low levels of antibodies to TF-Ag seem to improve prognosis; thus, it is expected that vaccines generating antibodies toward TF-Ag would be clinically valuable. Unfortunately, vaccinations with protein conjugates of carbohydrate tumor-associated Ags have induced clinically inadequate immune responses. However, immunization using peptides that mimic carbohydrate Ags such as Lewis has resulted in both Ab and T-cell responses. Here, we tested the hypothesis that vaccinations with unique TF-Ag peptide mimics may generate immune responses to TF-Ag epitopes on tumor cells, useful for active immunotherapy against relevant cancers. Peptide mimics of TF-Ag were selected by phage display biopanning using JAA-F11 and rabbit anti-TF-Ag Ab and were analyzed in vitro to confirm TF-Ag peptide mimicry. In vitro, TF-Ag peptide mimics bound to TF-Ag-specific peanut agglutinin and blocked TF-Ag-mediated rolling and stable adhesion of cancer cells to vascular endothelium. In vivo, the immunization with TF-Ag-mimicking multiple antigenic peptides induced TF-Ag-reactive Ab production. We propose that this novel active immunotherapy approach could decrease tumor burden in cancer patients by specifically targeting TF-Ag-positive cancer cells and blocking metastasis.
Collapse
Affiliation(s)
- Jamie Heimburg-Molinaro
- Department of Microbiology and Immunology, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| | - Adel Almogren
- Immunopathology & Allergy Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Susan Morey
- Department of Biotechnical and Clinical Laboratory Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| | - Olga V Glinskii
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA
| | - Rene Roy
- Department of Chemistry, University of Quebec at Montreal, Montreal, Quebec, Canada H3C 3P8
| | - Gregory E Wilding
- Department of Biostatistics, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| | - Richard P Cheng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Vladislav V Glinsky
- Department of Pathology and Anatomical Sciences, University of Missouri, Columbia, MO 65211, USA
- Harry S. Truman Memorial Veterans Hospital, Columbia, MO 65201, USA
| | - Kate Rittenhouse-Olson
- Department of Microbiology and Immunology, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
- Department of Biotechnical and Clinical Laboratory Sciences, University at Buffalo, The State University of New York, Buffalo, NY 14214, USA
| |
Collapse
|
2
|
Abstract
Antibodies to carbohydrate antigens are critical for the study of bacteria, tumors, blood groups, and cell-cell adhesion interactions; for the analysis of viral, hormone, and toxin receptors; and, finally, for analysis of the glycosylation of recombinant proteins. However, antibodies to carbohydrate structures are more difficult to develop because of the T-cell-independent response to carbohydrates. This can result in the production of low affinity and difficult to work with IgM antibodies to these molecules. Screening technologies that include IgM antibodies can cause selections of antibodies with low-affinity binding sites because of the net avidity enhancement. Unfortunately, the low-affinity binding site can also have a similar affinity for unwanted structures. Production of antibodies using cellular extracts can result in antibodies that react with multiple related structures, and therefore the resultant bioassays have sensitivity or specificity problems. Protein conjugates of saccharides for the production of polyclonal and monoclonal antibodies to carbohydrate structures can be used to solve these problems. For monoclonal antibody development to oligosaccharides, mapping with closely related saccharides allows the determination of the areas of the saccharide to which the antibody binds so that conclusions can be made concerning which saccharide structures will cross-react. Determination of the reactivity of the produced antibodies with related saccharide structures is essential prior to utilization.
Collapse
|
3
|
Klaamas K, Kurtenkov O, Rittenhouse-Olson K, Brjalin V, Miljukhina L, Shljapnikova L, Engstrand L. Expression of tumor-associated Thomsen-Friedenreich antigen (T Ag) in Helicobacter pylori and modulation of T Ag specific immune response in infected individuals. Immunol Invest 2002; 31:191-204. [PMID: 12472179 DOI: 10.1081/imm-120016240] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We tested the hypothesis that the gastric cancer associated bacteria, Helicobacter pylori (H. pylori) express the cancer-related Thomsen-Friedenreich (T) antigen. We also analysed whether infection with H. pylori alters the amount of natural anti-T antibodies in the patients' sera. Cell surface membrane extracts of H. pylori NCTC 11637 strain and clinical isolates of H. pylori (n = 13) were analysed by immunoblotting and cell-ELISA with five different T antigen-specific monoclonal antibodies (MAbs). Two major protein bands of approximately 68 kDa and 58 kDa were immunostained on blots of H. pylori extracts with T specific MAbs but not immunostained with unrelated MAb. The specificity was shown in that immunostaining was blocked with peanut agglutinin (PNA) and rabbit antiserum to T antigen. The binding of T specific MAb to the 58 kDa protein band was also blocked by rabbit antiserum against heat shock proteins of H. pylori. The relative expression of T antigen-related proteins differed among H. pylori strains, with 68 kD associated T antigen expression higher in patients with more severe pathology. The level of IgG antibody to T epitope in patients with gastric cancer (n = 66) and normal blood donors (n = 62) were compared and the level of anti-T Ab in gastric cancer patients was significantly lower than that in normal blood donors. A significant positive correlation between T specific antibody in serum and H. pylori IgG antibody level was found in H. pylori-infected normal blood donors (P < 0.001), but this correlation was not found in H. pylori-infected cancer patients. In summary, the cancer related T epitope is expressed in H. pylori and modulation of T antigen-specific immune response in H. pylori-infected individuals suggests that H. pylori infection may alter natural immune mechanisms against cancer.
Collapse
MESH Headings
- Animals
- Antibodies/blood
- Antibodies/immunology
- Antibodies, Bacterial/blood
- Antibodies, Bacterial/immunology
- Antibodies, Monoclonal/immunology
- Antigens, Bacterial/analysis
- Antigens, Bacterial/chemistry
- Antigens, Surface/immunology
- Antigens, Tumor-Associated, Carbohydrate/analysis
- Antigens, Tumor-Associated, Carbohydrate/chemistry
- Blotting, Western
- Carcinoma/immunology
- Carcinoma/microbiology
- Electrophoresis, Polyacrylamide Gel
- Enzyme-Linked Immunosorbent Assay
- Female
- Gastritis/immunology
- Gastritis/microbiology
- Glycoconjugates/immunology
- Helicobacter Infections/immunology
- Helicobacter pylori/immunology
- Helicobacter pylori/metabolism
- Humans
- Male
- Mice
- Molecular Weight
- Stomach Neoplasms/immunology
- Stomach Neoplasms/microbiology
Collapse
Affiliation(s)
- Kersti Klaamas
- Institute of Experimental and Clinical Medicine, Hiiu 42, Tallinn 11619, Estonia
| | | | | | | | | | | | | |
Collapse
|
4
|
Zeng X, Nakaaki Y, Murata T, Usui T. Chemoenzymatic synthesis of glycopolypeptides carrying alpha-Neu5Ac-(2-->3)-beta-D-Gal-(1-->3)-alpha-D-GalNAc, beta-D-Gal-(1-->3)-alpha-D-GalNAc, and related compounds and analysis of their specific interactions with lectins. Arch Biochem Biophys 2000; 383:28-37. [PMID: 11097173 DOI: 10.1006/abbi.2000.2033] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Glycopolypeptide (1) carrying the beta-D-Gal-(1-->3)-alpha-D-GalNAc unit as a kind model of asialo-type mucin was synthesized through three steps: enzymatic synthesis of p-nitrophenyl disaccharide glycoside, reduction of the p-nitrophenyl group, and coupling of the amino group with the carboxyl group of poly(L-glutamic acid)s (PGA). In a similar manner, glycopolypeptides (2-7) carrying beta-D-Gal-(1-->3)-beta-D-GalNAc, beta-D-Gal-(1-->3)-beta-D-GlcNAc, beta-D-Gal-(1-->6)-alpha-D-GalNAc, beta-D-Gal-(1-->6)-beta-D-GalNAc, alpha-D-GalNAc, and beta-D-GalNAc, respectively, were synthesized as analogous polymers of polymer 1. Glycopolypeptides 8 and 9 as a mimic of sialo-type mucin were further prepared from polymers 1 and 2 as the acceptor of CMP-Neu5Ac by alpha2,3-(O)-sialyltransferase, respectively. Interactions of these glycopolypeptides with lectins were investigated with the double-diffusion test and the hemagglutination-inhibition assay and in terms of an optical biosensor based on surface plasmon resonance. Polymers 1 and 2 reacted strongly with peanut (Arachis hypogaea) agglutinin (PNA) and Agaricus bisporus agglutinin (ABA). On the other hand, polymers 8 and 9 through sialylation from polymers 1 and 2 reacted with ABA, but did not with PNA. Other polymers 3-7 did not show any reactivity for both the lectins. These results show that PNA acts precisely in an exo manner on the beta-D-Gal-(1-->3)-D-GalNAc sequence, while ABA acts in an endo manner. Polymers 6 and 7 substituted with GalNAc reacted strongly with soybean (Glycine max) agglutinin and Vicia villosa agglutinin B4, regardless of the configuration of the glycosidic linkage. The interaction of all polymers with Bauhinia purpurea agglutinin was much stronger than that of the corresponding sugars. Polymers 8 and 9 reacted with wheat germ (Triticum vulgaris) agglutinin (WGA), to which Neu5Ac residues are needed for binding, but polymers 1 and 2 did not. These sugar-substituted glycopolypeptides interacted specifically with the corresponding lectins. Furthermore, polymers 4-7 reacted with WGA, but the corresponding sugars did not. It suggests that the N-acetyl group along the PGA backbone has a cluster effect for WGA. The artificial glycopolypeptides were shown to be useful as tools and probes of carbohydrate recognition and modeling in the analysis of glycoprotein-lectin interactions.
Collapse
Affiliation(s)
- X Zeng
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, Japan
| | | | | | | |
Collapse
|
5
|
Rittenhouse-Diakun K, Xia Z, Pickhardt D, Morey S, Baek MG, Roy R. Development and characterization of monoclonal antibody to T-antigen: (gal beta1-3GalNAc-alpha-O). Hybridoma (Larchmt) 1998; 17:165-73. [PMID: 9627057 DOI: 10.1089/hyb.1998.17.165] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The saccharide antigen, Gal beta1-3GalNAc or T antigen, is of biologic importance in many systems. It is a tumor-associated carbohydrate antigen, a temporally expressed antigen in germinal center B cells and cortical T cells, a parasite-associated antigen, a spermatozoa vitality marker and an antigen on aged red blood cells. It may play a role in normal cellular adhesion and in tumor cell metastasis. Well characterized monoclonal antibodies (MAb) to Gal beta1-3GalNAc will be useful for further studies in these areas. We developed an IgG3 MAb to Gal beta1-3GalNAc by immunizing the mice with a synthetic Gal beta1-3GalNAc-BSA conjugate. The MAb was analyzed using inhibition enzyme immunoassays with related synthetically prepared sugars to determine the restrictions involved in the antibody binding. Use of synthetic sugars as competitors enabled us to delineate the epitope restrictions on the binding activity of this monoclonal and will enable use of this MAb in studies concerning the biologic importance of this disaccharide.
Collapse
Affiliation(s)
- K Rittenhouse-Diakun
- Department of Clinical Laboratory Science, State University of New York at Buffalo, 14214, USA
| | | | | | | | | | | |
Collapse
|
6
|
Bay S, Berthier-Vergnes O, Biberovic V, Cantacuzène D. Unusual lactam formation occurring in the synthesis of a biotinylated T-antigen-serine derivative. Carbohydr Res 1997; 303:25-31. [PMID: 9345750 DOI: 10.1016/s0008-6215(97)00146-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Synthesis of the biotinylated T-antigens, linked to a serine by an alpha (7 alpha) or a beta (7 beta) 2-acetamido-2-deoxy-D-galactoside bond, is described. These derivatives were needed for the detection of a specific endogenous lectin at the surface and/or on the migration pathway of melanoma cells. In the course of the synthesis, an unusual lactam formation was observed with the beta anomer of the azido-disaccharide 5 beta.
Collapse
Affiliation(s)
- S Bay
- Institut Pasteur, Département de Biochimie et Génétique Moléculaire, Paris, France
| | | | | | | |
Collapse
|
7
|
Khan SH, Piskorz CF, Matta KL. Synthetic Antigens: Synthesis of 4-AminophenylO-α-D-Mannopyranosyl-(1→2)-O-α-D-mannopyranosyl-(1→6)-O-α-D-Mannopyranoside and A Related Di- and A Trisaccharide. J Carbohydr Chem 1994. [DOI: 10.1080/07328309408011844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
8
|
Khan SH, Matta KL. Carbohydrate haptens: 4-nitrophenyl 2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1-->6)-alpha-D-mannopyranosy l- (1-->6)-beta-D-mannopyranoside and a related trisaccharide. Carbohydr Res 1994; 259:283-91. [PMID: 8050100 DOI: 10.1016/0008-6215(94)84063-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- S H Khan
- Department of Gynecologic Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | |
Collapse
|
9
|
Vargas F, Khan SH, Diakun KR. Specificity analysis of antibodies formed in rabbits to a mannosyl trisaccharide: similarity with lectin binding activity. Para-aminophenyl O-alpha-D-mannopyranosyl-(1-->2)-alpha-D-mannopyranosyl- (1-->6)-alpha-D-mannopyranoside linked to bovine serum albumin as an antigen. Immunol Invest 1992; 21:671-84. [PMID: 1487325 DOI: 10.3109/08820139209069403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The para-aminophenyl derivative of Man alpha 1-->2Man alpha 1-->6Man alpha 1-->was coupled via a diazotization reaction to bovine serum albumin, and the resulting glycoconjugate was used to immunize two rabbits. The resultant antisera were tested for reactivity with a number of related mono, di- and trisaccharides to determine the immunodominant portion of this trisaccharide. Two populations of antibody resulted, one of which required the reducing end mannose, and could react with either an N-acetylglucosamine or a mannose as the penultimate sugar. The other population reacted with the Man alpha 1-->2Man alpha 1-->6Man alpha 1-->. The aglycone moiety and its configurations play an important role in determining the specificity of antibodies to this synthetic antigen. The similarity of this reactivity to the reactivity of mannose binding lectins is discussed.
Collapse
Affiliation(s)
- F Vargas
- Department of Molecular Immunology, Roswell Park Cancer Institute, New York
| | | | | |
Collapse
|
10
|
Jain RK, Piskorz CF, Matta KL. A facile synthesis of nitrophenyl oligosaccharides containing the O-alpha-L-fucopyranosyl-(1----3)-2-acetamido-2-deoxy-beta-D-glucopyrano syl unit at their nonreducing end. Carbohydr Res 1992; 228:243-53. [PMID: 1516089 DOI: 10.1016/s0008-6215(00)90562-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A facile approach towards the synthesis of 4-nitrophenyl O-alpha-L-fucopyranosyl-(1----3)-2-acetamido-2-deoxy-beta-D-glucopyra nos ide, 2-nitrophenyl O-alpha-L-fucopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D-glucop yra nosyl)- (1----6)-2-acetamido-2-deoxy-alpha-D-galactopyranoside, 4-nitrophenyl O-alpha-L-fucopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D-glucop yra nosyl)- (1----6)-alpha-D-mannopyranoside, and 4-nitrophenyl O-alpha-L-fucopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D-glucop yra nosyl)-(1----6)-beta-D-galactopyranoside has been accomplished through the development and use of methyl 3,4-O-isopropylidene-2-O-(4-methoxybenzyl)-1-thio-beta-L-fucopyranoside as the glycosyl donor.
Collapse
Affiliation(s)
- R K Jain
- Department of Gynecologic Oncology, Roswell Park Cancer Institute, Buffalo, New York 14263
| | | | | |
Collapse
|
11
|
Matta KL, Piskorz CF, Abbas SA, Diakun KR. Synthetic antigens as immunogens: Part IV. Specificity of antisera developed to Gal beta 1-3(GlcNAc beta 1-6)GalNAc and GlcNAc beta 1-6GalNAc. Immunol Invest 1991; 20:525-37. [PMID: 1791040 DOI: 10.3109/08820139109082633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antisera to the chemically synthesized trisaccharide, Gal beta 1-3(GlcNAc beta 1-6)GalNAc, and disaccharide, GlcNAc beta 1-6GalNAc, were developed using the diazophenyl bovine serum albumin derivatives. The binding specificity of the antisera were analyzed by enzyme immunoassays with structurally related, chemically synthesized oligosaccharides. The anti-trisaccharide antibody showed no reactivity to T antigenic structures which bear the Gal beta 1-3GalNAc moiety. The immunodominant area of the Gal beta 1-3(GlcNAc beta 1-6)GalNAc was contained in the GlcNAc beta 1-6GalNAc region of the molecule. The reactivity pattern of the anti-trisaccharide antibody, although directed to the disaccharide, did not exactly duplicate the reactivity pattern of the anti-disaccharide.
Collapse
Affiliation(s)
- K L Matta
- Department of Gynecologic Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263
| | | | | | | |
Collapse
|
12
|
Khan SH, Jain RK, Matta KL. Synthesis of methyl O-(2-O-methyl-beta-D-galactopyranosyl)-(1----4)-O-(2- acetamido-2-deoxy-beta-D-glucopyranosyl)-(1----3)-beta-D- galactopyranoside and 4-nitrophenyl O-beta-D-galactopyranosyl-(1----4)-O-(2-acetamido-2-deoxy-beta-D- glucopyranosyl)-(1----3)-beta-D-galactopyranoside. Carbohydr Res 1990; 203:139-47. [PMID: 2224901 DOI: 10.1016/0008-6215(90)80053-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- S H Khan
- Department of Gynecologic Oncology, Roswell Park Memorial Institute, New York State Department of Health, Buffalo 14263
| | | | | |
Collapse
|
13
|
Khan SH, Abbas SA, Matta KL. Synthesis of some oligosaccharides containing the O-(2-acetamido-2-deoxy- beta-D-glucopyranosyl)-(1----2)-O-alpha-D-mannopyranosyl unit. Potential substrates for UDP-GlcNAc:alpha-D-mannopyranosyl-(1----6)-N-acetyl-beta-D- glucosaminyltransferase (GnT-V). Carbohydr Res 1989; 193:125-39. [PMID: 2532953 DOI: 10.1016/0008-6215(89)85112-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Four different oligosaccharides containing the 2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1----2)-alpha-D-mannopyran osy l sequence as a terminal disaccharide unit were synthesized, namely: 4-nitrophenyl O-(2-acetamido-2-deoxy-beta-D- glucopyranosyl)-(1----2)-O-alpha-D-mannopyranosyl-(1----6)-beta-D- mannopyranoside (27), 4-nitrophenyl O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1----2)-O-alpha-D-mann opy ranosyl - (1----6)-beta-D-glucopyranoside (29), allyl O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1----2)-alpha-D- mannopyranosyl-(1----6)-beta-D-glucopyranoside (31), and allyl O-(2-acetamido-2-deoxy-beta-D-glucopyranosyl)-(1----2)-O-alpha-D- mannopyranosyl-(1----6)-O-beta-D-glucopyranosyl-(1----4)-beta-D-gluco pyr anoside (33). A common glycosyl donor, namely, 2-O-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-beta-D- glucopyranosyl)-3,4,6-tri-O-acetyl-alpha-D-mannopyranosyl bromide was employed for the synthesis of 27, 29, 31, and 33, the structures of which were all established by 13C-n.m.r. spectroscopy.
Collapse
Affiliation(s)
- S H Khan
- Department of Gynecologic Oncology, Roswell Park Memorial Institute, Buffalo, NY 14263
| | | | | |
Collapse
|
14
|
Jain RK, Kohata K, Abbas SA, Matta KL. Synthetic mucin fragments. Synthesis of a tetra- and two penta-saccharides containing the O-beta-D-galactopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D- glucopyranosyl)-(1----3)-D-galactopyranose ("lacto-N-triose 1") unit. Carbohydr Res 1988; 182:290-6. [PMID: 3242806 DOI: 10.1016/0008-6215(88)84010-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- R K Jain
- Department of Gynecologic Oncology, Roswell Park Memorial Institute, New York State Department of Health
| | | | | | | |
Collapse
|
15
|
Jain PK, Abbas SA, Matta KL. Synthetic Mucin Fragments: Methyl-3-O-(2-Acetamido-2-Deoxy-4-O- and 6-O-β-D-Galactopyranosyl-β-D-Glucopyranosyl)-β-D-Galactopyranoside and Methyl 3-O-(2-Acetamido-2-Deoxy-4-O- and 3-O-Methyl-β-D-Glucopyranosyl-3-D-Galactopyranoside. J Carbohydr Chem 1988. [DOI: 10.1080/07328308808058931] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Jain RK, Abbas SA, Matta KL. Use of O-(2,3,4-tri-O-acetyl-alpha-L-fucopyranosyl)-(1----3)-O-(2-acetamido- 4,6-di-O-acetyl-2-deoxy-beta-D-glucopyranosyl)-(1----3)-2,4,6-tri-O- acetyl-alpha-D-galactopyranosyl bromide as a glycosyl donor. Synthesis of 4-nitrophenyl O-alpha-L-fucopyranosyl-(1----3)-O-(2-acetamido-2-deoxy-beta-D- glucopyranosyl)-(1----3)-beta-D-galactopyranoside. Carbohydr Res 1988; 173:297-302. [PMID: 3359457 DOI: 10.1016/s0008-6215(00)90826-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- R K Jain
- Department of Gynecologic Oncology, Roswell Park Memorial Institute, New York State Department of Health, Buffalo 14263
| | | | | |
Collapse
|