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Ranasinghe A, Mehl J, D'Arienzo C, Nabbie F, Chiu C, Thevanayagam L, Srinivasan M, Hogan J, Ponath P, Olah T. Fucosyl monosialoganglioside: Quantitative analysis of specific potential biomarkers of lung cancer in biological matrices using immunocapture extraction/tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1481-1490. [PMID: 29876976 DOI: 10.1002/rcm.8194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 04/19/2018] [Accepted: 05/29/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Certain lung cancer patients express elevated Fucosyl Monosialoganglioside (Fuc-GM1) in circulation compared to control groups. Several sensitive methods involving characterization of Fuc-GM1 have been reported. However, a highly specific and sensitive method for quantifying multiple potential Fuc-GM1 biomarkers present in various biological matrices has not been reported to date. METHODS Individual Fuc-GM1 analogs in a commercially obtained standard mixture were characterized using HPLC/UV/MS and high-resolution mass spectrometry (HRMS). Proprietary antibodies, mAb1 and mAb2, were used to selectively capture and pre-concentrate the soluble and drug-bound forms of Fuc-GM1 molecules present in human serum and whole blood, eliminating the background matrix components. Immunocapture extraction (ICE) followed by HPLC/MS/MS was used to quantify specific Fuc-GM1 analogs in biological matrices. RESULTS The concentration of individual Fuc-GM1 analogs in the standard mixture was estimated to be 7-34%, using HPLC/UV/MS. Using the standard mixture spiked into the biological matrices (100 μL), the lower limit of quantification (LLOQ) of each analog was 0.2-0.4 ng/mL with a dynamic range of up to 200 ng/mL. The applicability of the ICE-HPLC/MS/MS method was demonstrated by detecting endogenous Fuc-GM1 analogs present in rat blood and in several lung cancer cell lines. CONCLUSIONS This highly specific and sensitive HPLC/MS/MS method for quantifying individual potential Fuc-GM1 biomarkers in serum and whole blood can play a critical role in patient stratification strategies and during drug treatment. This method can be employed for monitoring both free (soluble) form and antibody drug-bound Fuc-GM1.
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Affiliation(s)
- Asoka Ranasinghe
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
| | - John Mehl
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
| | - Celia D'Arienzo
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
| | - Fizal Nabbie
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
| | - Christopher Chiu
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
| | | | | | - Jason Hogan
- Bristol-Myers Squibb Company, Redwood City, CA, 94063, USA
| | - Paul Ponath
- Bristol-Myers Squibb Company, Redwood City, CA, 94063, USA
| | - Timothy Olah
- Research and Development, Bristol-Myers Squibb Company, Princeton, NJ, 08543, USA
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Ponath P, Menezes D, Pan C, Chen B, Oyasu M, Strachan D, LeBlanc H, Sun H, Wang XT, Rangan VS, Deshpande S, Cristea S, Park KS, Sage J, Cardarelli PM. A Novel, Fully Human Anti-fucosyl-GM1 Antibody Demonstrates Potent In Vitro and In Vivo Antitumor Activity in Preclinical Models of Small Cell Lung Cancer. Clin Cancer Res 2018; 24:5178-5189. [PMID: 30021910 DOI: 10.1158/1078-0432.ccr-18-0018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 03/15/2018] [Accepted: 07/11/2018] [Indexed: 12/30/2022]
Abstract
Purpose: The ganglioside fucosyl-GM1 (FucGM1) is a tumor-associated antigen expressed in a large percentage of human small cell lung cancer (SCLC) tumors, but absent in most normal adult tissues, making it a promising target in immuno-oncology. This study was undertaken to evaluate the preclinical efficacy of BMS-986012, a novel, nonfucosylated, fully human IgG1 antibody that binds specifically to FucGM1.Experimental Design: The antitumor activity of BMS-986012 was evaluated in in vitro assays using SCLC cells and in mouse xenograft and syngeneic tumor models, with and without chemotherapeutic agents and checkpoint inhibitors.Results: BMS-986012 showed a high binding affinity for FcγRIIIa (CD16), which resulted in enhanced antibody-dependent cellular cytotoxicity (ADCC) against FucGM1-expressing tumor cell lines. BMS-986012-mediated tumor cell killing was also observed in complement-dependent cytotoxicity (CDC) and antibody-dependent cellular phagocytosis (ADCP) assays. In several mouse SCLC models, BMS-986012 demonstrated efficacy and was well tolerated. In the DMS79 xenograft model, tumor regression was achieved with BMS-986012 doses of 0.3 mg/kg and greater; antitumor activity was enhanced when BMS-986012 was combined with standard-of-care cisplatin or etoposide. In a syngeneic model, tumors derived from a genetically engineered model of SCLC were treated with BMS-986012 or anti-FucGM1 with a mouse IgG2a Fc and their responses evaluated; when BMS-986012 was combined with anti-PD-1 or anti-CD137 antibody, therapeutic responses significantly improved.Conclusions: Single-agent BMS-986012 demonstrated robust antitumor activity, with the addition of chemotherapeutic or immunomodulatory agents further inhibiting SCLC growth in the same models. These preclinical data supported evaluation of BMS-986012 in a phase I clinical trial of patients with relapsed, refractory SCLC. Clin Cancer Res; 24(20); 5178-89. ©2018 AACR.
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Affiliation(s)
- Paul Ponath
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Daniel Menezes
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Chin Pan
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Bing Chen
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Miho Oyasu
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Debbie Strachan
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Heidi LeBlanc
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | | | | | - Vangipuram S Rangan
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Shrikant Deshpande
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California
| | - Sandra Cristea
- Departments of Pediatrics and Genetics, Stanford University School of Medicine, Stanford, California
| | - Kwon-Sik Park
- Departments of Pediatrics and Genetics, Stanford University School of Medicine, Stanford, California
| | - Julien Sage
- Departments of Pediatrics and Genetics, Stanford University School of Medicine, Stanford, California
| | - Pina M Cardarelli
- Biologics Discovery California, Bristol-Myers Squibb, Redwood City, California.
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3
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Zamfir AD, Serb A, Vukeli Ž, Flangea C, Schiopu C, Fabris D, Kalanj-Bognar S, Capitan F, Sisu E. Assessment of the molecular expression and structure of gangliosides in brain metastasis of lung adenocarcinoma by an advanced approach based on fully automated chip-nanoelectrospray mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2011; 22:2145-2159. [PMID: 22002228 DOI: 10.1007/s13361-011-0250-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/12/2011] [Accepted: 09/12/2011] [Indexed: 05/31/2023]
Abstract
Gangliosides (GGs), sialic acid-containing glycosphingolipids, are known to be involved in the invasive/metastatic behavior of brain tumor cells. Development of modern methods for determination of the variations in GG expression and structure during neoplastic cell transformation is a priority in the field of biomedical analysis. In this context, we report here on the first optimization and application of chip-based nanoelectrospray (NanoMate robot) mass spectrometry (MS) for the investigation of gangliosides in a secondary brain tumor. In our work a native GG mixture extracted and purified from brain metastasis of lung adenocarcinoma was screened by NanoMate robot coupled to a quadrupole time-of-flight MS. A native GG mixture from an age-matched healthy brain tissue, sampled and analyzed under identical conditions, served as a control. Comparative MS analysis demonstrated an evident dissimilarity in GG expression in the two tissue types. Brain metastasis is characterized by many species having a reduced N-acetylneuraminic acid (Neu5Ac) content, however, modified by fucosylation or O-acetylation such as Fuc-GM4, Fuc-GM3, di-O-Ac-GM1, O-Ac-GM3. In contrast, healthy brain tissue is dominated by longer structures exhibiting from mono- to hexasialylated sugar chains. Also, significant differences in ceramide composition were discovered. By tandem MS using collision-induced dissociation at low energies, brain metastasis-associated GD3 (d18:1/18:0) species as well as an uncommon Fuc-GM1 (d18:1/18:0) detected in the normal brain tissue could be structurally characterized. The novel protocol was able to provide a reliable compositional and structural characterization with high analysis pace and at a sensitivity situated in the fmol range.
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Affiliation(s)
- Alina D Zamfir
- Department of Chemical and Biological Sciences, Aurel Vlaicu University of Arad, Revolutiei Blvd. 77, RO-310130, Arad, Romania.
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Sandhoff R, Geyer R, Jennemann R, Paret C, Kiss E, Yamashita T, Gorgas K, Sijmonsma TP, Iwamori M, Finaz C, Proia RL, Wiegandt H, Gröne HJ. Novel class of glycosphingolipids involved in male fertility. J Biol Chem 2005; 280:27310-8. [PMID: 15917254 DOI: 10.1074/jbc.m502775200] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Mice require testicular glycosphingolipids (GSLs) for proper spermatogenesis. Mutant mice strains deficient in specific genes encoding biosynthetic enzymes of the GSL pathway including Galgt1 (encoding GM2 synthase) and Siat9 (encoding GM3 synthase) have been established lacking various overlapping subsets of GSLs. Although male Galgt1-/- mice are infertile, male Siat9-/- mice are fertile. Interestingly, GSLs thought to be essential for male spermatogenesis are not synthesized in either of these mice strains. Hence, these GSLs cannot account for the different phenotypes. A novel class of GSLs was observed composed of eight fucosylated molecules present in fertile but not in infertile mutant mice. These GSLs contain polyunsaturated very long chain fatty acid residues in their ceramide moieties. GSLs of this class are expressed differentially in testicular germ cells. More importantly, the neutral subset of this new GSL class strictly correlates with male fertility. These data implicate polyunsaturated, fucosylated GSLs as essential for spermatogenesis and male mouse fertility.
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Affiliation(s)
- Roger Sandhoff
- Department of Cellular and Molecular Pathology, German Cancer Research Center, Heidelberg, Germany.
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5
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Krug LM, Ragupathi G, Hood C, Kris MG, Miller VA, Allen JR, Keding SJ, Danishefsky SJ, Gomez J, Tyson L, Pizzo B, Baez V, Livingston PO. Vaccination of patients with small-cell lung cancer with synthetic fucosyl GM-1 conjugated to keyhole limpet hemocyanin. Clin Cancer Res 2005; 10:6094-100. [PMID: 15447995 DOI: 10.1158/1078-0432.ccr-04-0482] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Immunotherapy directed toward cell surface antigens may provide a novel approach to the eradication of chemoresistant micrometastatic disease in patients with small-cell lung cancer (SCLC). Studies in SCLC cell lines and human tissues suggest that the ganglioside fucosyl GM1 is an abundant yet specific target. A prior clinical study demonstrated the potent immunogenicity of fucosyl GM-1 derived from bovine thyroid gland, conjugated to keyhole limpet hemocyanin (KLH) and administered with QS-21 adjuvant. EXPERIMENTAL DESIGN We tested the immunogenicity of three different doses of a synthetic version of fucosyl-GM1 in patients with SCLC after a major response to initial therapy. The primary end point was to establish the lowest effective dose capable of inducing antibody production. RESULTS Five of six patients at the 30-microg dose and three of five patients at the 10-microg dose mounted IgM responses of 1:80 or greater. These antibodies were confirmed by flow cytometry in seven of eight cases. None of the patients at the 3-microg dose had titers above 1:80. One patient at the 30-microg dose had an IgG response with a titer of 1:80. The sera from six of the eight responders induced potent complement-mediated cytotoxicity of tumor cells. CONCLUSIONS Vaccination with the synthetic fucosyl GM1-KLH conjugate induces an IgM antibody response against fucosyl GM1 and tumor cells expressing fucosyl GM1, comparable with the response induced by the bovine derivative. We plan to combine synthetic fucosyl GM1 vaccine at a dose of 30 microg with vaccines against three other antigens-GM2, Globo H, and polysialic acid-to test in patients with SCLC after initial chemotherapy.
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Affiliation(s)
- Lee M Krug
- Thoracic Oncology Service, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.
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6
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Patel JD, Krug LM, Azzoli CG, Gomez J, Kris MG, Miller VA. Targeting lethal minimal residual disease in small cell lung cancer. Semin Oncol 2003; 30:79-85. [PMID: 12635092 DOI: 10.1053/sonc.2003.50018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In the last three decades, treatment for small cell lung cancer has improved with advances in chemotherapy and radiotherapy. Almost all patients respond initially to standard chemotherapy, and some patients with limited stage disease are cured with the combination of chemotherapy and thoracic irradiation. Nonetheless, the majority of patients will experience lethal relapse from chemotherapy-resistant micrometastatic disease, and this has resulted in poor long-term survival for most patients. Addressing the problem of relapse requires unique approaches to eliminating minimal residual disease. This review will focus on the detection of minimal residual disease as well as strategies with which to treat it, including matrix metalloproteinase inhibitors, tyrosine kinase inhibitors, and vaccine therapy.
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Affiliation(s)
- Jyoti D Patel
- Thoracic Oncology Service, Division of Solid Tumor Oncology, Department of Medicine, Memorial Sloan-Kettering Cancer Center, Weill Medical College of Cornell University, New York, NY 10021, USA
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7
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Brezicka T, Bergman B, Olling S, Fredman P. Reactivity of monoclonal antibodies with ganglioside antigens in human small cell lung cancer tissues. Lung Cancer 2000; 28:29-36. [PMID: 10704706 DOI: 10.1016/s0169-5002(99)00107-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Gangliosides on tumor cells have been suggested as potential target antigens for specific immunotherapy in various types of cancer including small cell lung cancer (SCLC). In this study we have compared the expression of three gangliosides that have been described as tumor-associated antigens, FucGM1, GM2 and GD3 in SCLC tissue specimens collected at autopsy, using a double-layer immunofluorescence staining method and specific monoclonal antibodies (Mabs) directed against these ganliosides. We found expression of FucGM1, GD3 and GM2 in (70% (n=20), 60% (n=15) and 40% (n75% of the tumor cells in all lesions from the same patient (five of eight cases). Our results indicate that FucGM1 is a relevant ganglioside antigen in SCLC, and suggest that specific immunotherapy involving more than one ganglioside antigen in SCLC should at least include FucGM1 and GD3.
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Affiliation(s)
- T Brezicka
- Department of Pulmonary Medicine and Allergology, University of Göteborg, Gothenburg, Sweden.
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8
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Schwarz A, Futerman AH. The localization of gangliosides in neurons of the central nervous system: the use of anti-ganglioside antibodies. BIOCHIMICA ET BIOPHYSICA ACTA 1996; 1286:247-67. [PMID: 8982285 DOI: 10.1016/s0304-4157(96)00011-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- A Schwarz
- Department of Membrane Research and Biophysics, Weizmann Institute of Science, Rehovot, Israel
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9
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Chapter 4 Tumor-associated carbohydrate antigens and modified blood group antigens. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s0167-7306(08)60290-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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10
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Holmgren J. Receptors for cholera toxin and Escherichia coli heat-labile enterotoxin revisited. PROGRESS IN BRAIN RESEARCH 1994; 101:163-77. [PMID: 8029448 DOI: 10.1016/s0079-6123(08)61947-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- J Holmgren
- Department of Medical Microbiology and Immunology, University of Göteborg, Sweden
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11
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Kimber SJ, Brown DG, Påhlsson P, Nilsson B. Carbohydrate antigen expression in murine embryonic stem cells and embryos. II. Sialylated antigens and glycolipid analysis. THE HISTOCHEMICAL JOURNAL 1993; 25:628-41. [PMID: 7693623 DOI: 10.1007/bf00157877] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A mouse embryonic stem (ES) cell line E14 and early mouse embryos were stained with a panel of 15 monoclonal antibodies recognizing sialylated or potentially sialylated carbohydrate determinants. Sialyl Le-x and sialyl Le-a were detected on the pre-implantation embryo from the 8-cell stage, and sialyl Le-a weakly on undifferentiated ES cells. Changes in cell surface carbohydrates occurred after induction of ES cell differentiation with retinoic acid (RA) and dibutyryl cAMP. Qualitative analysis of the neutral glycolipids of untreated and RA-treated ES cells using high-performance thin-layer chromatography (HPTLC) revealed few differences between the two types of culture. The major gangliosides in both cultures were indicative of an active 'a' ganglioside synthesis pathway. GD3, a precursor of the 'b' synthesis pathway, previously reported to be characteristic of embryonal carcinoma (EC) cells, was absent. RA-induced differentiation caused a shift in the spectrum to more complex gangliosides. Application of fast atom bombardment mass spectrometry (FAB-MS) to permethylated derivatives of individual bands permitted partial characterization of an unusual sialylated glycolipid and a rare ganglioside with the suggested structure of GalNAc-GD1a.
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Affiliation(s)
- S J Kimber
- Department of Cell and Structural Biology, University of Manchester, UK
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12
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Brezicka FT, Holmgren J, Kalies I, Lindholm L. Tumor-cell killing by MAbs against fucosyl GM1, a ganglioside antigen associated with small-cell lung carcinoma. Int J Cancer 1991; 49:911-8. [PMID: 1660040 DOI: 10.1002/ijc.2910490619] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Monoclonal antibodies (MAbs) reactive with the ganglioside fucosyl GM1 (Fuc-GM1), an antigen associated with small-cell carcinoma of the lung (SCLC), were tested for their ability to mediate tumor-cell killing in vitro in conjunction with humoral and cellular effectors and to inhibit tumor engraftment in nude mice in vivo. MAbs F12 and F15, both IgG3k, induced human complement-mediated cytolysis of 3 Fuc-GM1-expressing tumor cell lines: one rat hepatoma cell line, H4-II-E, and 2 human SCLC cell lines, NC1 H69 and NC1 H128. F12 and F15 also induced ADCC of these cell lines in the presence of either murine or human effector cells. Addition of sub-cytolytic amounts of fresh human serum as complement source resulted in enhanced ADCC induced by MAb F12 (IgG3). Also a Fuc-GM1-reactive MAb of IgM isotype, F9, was able to induce such complement-aided ADCC (CADCC). F12 and F15 both proved to effectively inhibit engraftment of H4-II-E tumors in nude mice. A single dose of a modest amount (40 micrograms) of MAb conferred 65 to 100% protection against development of tumors. Our results demonstrate that Fuc-GM1 can act as a target antigen on tumor cells for specific immunotherapy in vitro and in a mouse model in vivo. Complement and murine and human mononuclear effector cells were effective mediators of tumor cytolysis in vitro in the presence of murine Fuc-GM1-reactive MAbs. Our results also suggest that humoral and cellular effectors may co-operate in specific tumoricidal reactions and that these may be induced by antibodies of both IgG and IgM isotypes.
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Affiliation(s)
- F T Brezicka
- Department of Medical Microbiology and Immunology, University of Göteborg, Sweden
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13
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Brezicka FT, Olling S, Bergman B, Berggren H, Engström CP, Holmgren J, Larsson S, Lindholm L. Immunohistochemical detection of two small cell lung carcinoma-associated antigens defined by MAbs F12 and 123C3 in bronchoscopy biopsy tissues. APMIS 1991; 99:797-802. [PMID: 1654059 DOI: 10.1111/j.1699-0463.1991.tb01262.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have studied MAbs* for their ability to detect SCLC and differentiate this tumor type from the other lung tumor histotypes in cryostat sections of biopsy specimens taken at bronchoscopy from patients with suspected primary lung tumor disease. MAb F12, specific for the ganglioside fucosyl-GM1, reacted with 58% of the cases with SCLC (n = 19) and with less than 3% of those with non-SCLC (n = 38). MAb 123C3, specifically reactive with NCAM, reacted with 78% of the SCLC cases (n = 23). With this MAb no positive staining was seen in the non-SCLC cases (n = 41). None of the two MAbs reacted with tissue sections without tumor. In combined analysis with MAbs F12 and 123C3, all SCLC cases (n = 15) were positive with either and 47% with both of the MAbs. Our results show that both MAbs F12 and 123C3 are highly specific for SCLC in bronchoscopic biopsy tissue specimens, whereas the sensitivity for this histotype tends to be higher with MAb 123C3 than with F12 (P = 0.14). When used in combination, all SCLC cases could be identified. These MAbs may therefore be valuable as complements to current histopathologic characterization and differentiation of lung cancer.
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Affiliation(s)
- F T Brezicka
- Department of Medical Microbiology and Immunology, University of Göteborg, Sweden
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Abstract
"New" carbohydrate structures on the surface of or secreted by cancer cells, identified as epitopes by monoclonal antibodies, are reviewed. These structures may represent the accumulation of precursor chains because of decreased activity of synthesizing enzymes, the production of new oligosaccharides due to increased or aberrant glycosylation of carbohydrate chains, a change in density of carbohydrates on the cell surface, or exposure of chains usually covered by other structures. Alterations in glycolipid synthesis include aberrant fucosylation and/or sialyation of the lacto series, sialylation or fucosylation of the globo series, and sialyation of the ganglio series. Many of these carbohydrate epitopes have become useful for the diagnosis, prognosis, and monitoring of patients with cancer. Some of the important markers include CA 15.3, CA 19.9, CA 50, CA 125, CA 242, MCA, SLEX, etc. Incomplete glycosylation of O-linked mucin oligosaccharide is recognized as the important "cancer antigen" B72.3, which is sialyated Tn. The oligosaccharide components of alpha-fetoprotein, carcinoembryonic antigen, and epidermal growth factor receptor are also reviewed. In many instances the glycosylation seen in cancer cells or their products reflects patterns seen during normal development. Thus, cancer-associated oligosaccharides are oncodevelopmental in nature. The biologic significance of carbohydrates on cell surfaces is not known, but several possibilities include a role in cell to cell recognition, intracellular processing of glycoproteins, cell activation, and ability of cancer cells to metastasize.
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Affiliation(s)
- S Sell
- Department of Pathology and Laboratory Medicine, University of Texas Health Science Center, Houston 77225
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15
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Karlsson G, Månsson JE, Wikstrand C, Bigner D, Svennerholm L. Characterization of the binding epitope of the monoclonal antibody DMAb-1 to ganglioside GM2. BIOCHIMICA ET BIOPHYSICA ACTA 1990; 1043:267-72. [PMID: 1691018 DOI: 10.1016/0005-2760(90)90026-t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Several derivatives of ganglioside GM2 were synthesized for mapping of the binding epitope of a monoclonal antibody raised against this ganglioside. The GM2 ganglioside was modified in both the hydrophobic and the hydrophobilic part of the molecule. The synthesized derivatives were characterized with fast atom bombardment mass spectrometry (FAB-MS). Affinity of the monoclonal antibody for the GM2 derivatives was determined by enzyme-linked immunosorbent assay (ELISA) on microtitre plates or by TLC immunostaining. Modifying the GM2 sialic acid by deacetylation or blocking of the carboxyl moiety abolished the binding to the monoclonal antibody while the cleaving of the glycol group on the sialic acid tail led to a 70% reduced binding affinity. Removal of the fatty acid (lyso-GM2) eliminated the binding to the antibody. GM2 derivatives with fatty acid moieties of 8 carbon atoms or less showed almost no reactivity. GM2 with saturated fatty acids 16:0, 18:0 and 20:0 had binding affinity similar to natural GM2, while the 24:0 fatty acid had only half the binding affinity. The results demonstrate the importance of ganglioside fatty acid composition with regard to ligand binding between the monoclonal antibody and its specific ganglioside antigen. Thus, caution must be shown in the application of immunaffinity methods with monoclonal antibodies for the quantitative determination of glycosphingolipids from different tissues.
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Affiliation(s)
- G Karlsson
- Department of Psychiatry and Neurochemistry, Gothenburg University, St. Jörgen Hospital, Hisings Backa, Sweden
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16
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Ohbayashi H, Endo T, Yamashita K, Kuroki M, Matsuoka Y, Kobata A. Novel methods to determine the epitopes on the asparagine-linked oligosaccharides of glycoproteins. Anal Biochem 1989; 182:200-6. [PMID: 2481986 DOI: 10.1016/0003-2697(89)90579-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Oligosaccharides obtained from glycoproteins by hydrazinolysis followed by N-acetylation were covalently coupled to an amino-bonded thin-layer plate or to a poly-L-lysine coating on the microtiter plate. Bound oligosaccharides can be directly detected by immunostaining or by enzyme-linked immunosorbent assay (ELISA) using a mouse monoclonal antibody. These methods are simple and require small amounts of oligosaccharides and antibodies. The methods were successfully applied to determine the epitope of F48-60, a monoclonal antibody which reacts with the N-linked sugar chains of nonspecific cross-reacting antigen 2, but not with those of carcinoembryonic antigen. The results revealed that the antibody recognizes the Gal beta 1----3GlcNAc beta 1----group.
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Affiliation(s)
- H Ohbayashi
- Department of Biochemistry, University of Tokyo, Japan
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Svennerholm L, Boström K, Fredman P, Månsson JE, Rosengren B, Rynmark BM. Human brain gangliosides: developmental changes from early fetal stage to advanced age. BIOCHIMICA ET BIOPHYSICA ACTA 1989; 1005:109-17. [PMID: 2775765 DOI: 10.1016/0005-2760(89)90175-6] [Citation(s) in RCA: 217] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The developmental profiles of the four major brain gangliosides, GM1, GD1a, GD1b, and GT1b, were examined in human frontal lobe covering the period from 10 fetal weeks to 80 years of age. The ganglioside concentration increased approx. 3-fold from the 10th gestational week to the age of about 5 years. Gangliosides GM1 and GD1a increased 12-15-fold during the same period. The most rapid increase of GM1 and GD1a occurred around term, during the period for dendrite arborization, outgrowth of axons and synaptogenesis. GT1b showed a quite different developmental curve. It was the major ganglioside during the 3rd to 5th gestational month, whereafter its concentration dropped rapidly to term, from which time the concentration then increased up to 50 years of age. Similar curves were found for the other gangliosides of the b-series, GD3, GD2, GD1b and GQ1b. Ganglioside 3'-isoLM1 was a characteristic early fetal ganglioside which dropped rapidly to the 5th gestational month, reached a small peak around term and then disappeared during adulthood. The concentration of gangliosides of the neolacto series was larger than that of the lacto series during the whole developmental period. In the beginning of the second trimester, 3'-LM1 constituted 2% and LD1 10% of total ganglioside sialic acid. The new findings demonstrate more dynamic changes of the ganglioside patterns during development than noted in previous studies.
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Affiliation(s)
- L Svennerholm
- Department of Psychiatry and Neurochemistry, Göteborg University, Sweden
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Davidsson P, Fredman P, Collins VP, von Holst H, Mänsson JE, Svennerholm L. Ganglioside composition in human meningiomas. J Neurochem 1989; 53:705-9. [PMID: 2760617 DOI: 10.1111/j.1471-4159.1989.tb11761.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The ganglioside composition in meningioma specimens from 20 patients was analyzed to find potential meningioma-associated structures. The characterization was performed by immunological staining with specific monoclonal antibodies to ganglioside antigens and fast atom bombardment-mass spectrometry. The major gangliosides were GM3 and GD3, and most of the meningioma specimens could be divided into a "GM3-rich" or a "GD3-rich" group. Gangliosides of the gangliotetraose series were represented by GM1, GD1a, GD1b, and GT1b, which were found in minor amounts in all the specimens. The ratios of GM1/GD1a and GD1a/GD1b differed from that in normal brain, and therefore existence of this series could not be explained by contamination with brain material. Ganglioside 3'-isoLM1, found in human malignant glioma, could not be detected in any meningioma specimen.
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Affiliation(s)
- P Davidsson
- Department of Psychiatry and Neurochemistry, Gothenburg University, St. Jörgen Hospital, Hisings Backa, Sweden
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Fredman P, Månsson JE, Wikstrand CJ, Vrionis FD, Rynmark BM, Bigner DD, Svennerholm L. A New Ganglioside of the Lactotetraose Series, GalNAc-3′-isoLM1, Detected in Human Meconium. J Biol Chem 1989. [DOI: 10.1016/s0021-9258(18)63827-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Clausen H, Hakomori S. ABH and related histo-blood group antigens; immunochemical differences in carrier isotypes and their distribution. Vox Sang 1989; 56:1-20. [PMID: 2464874 DOI: 10.1111/j.1423-0410.1989.tb03040.x] [Citation(s) in RCA: 362] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This review summarizes present knowledge of the chemistry of histo-blood group ABH and related antigens. Recent advances in analytical carbohydrate chemistry (particularly mass spectrometry and NMR spectroscopy) and the introduction of monoclonal antibodies (MoAbs) have made it possible to distinguish structural variants of histo-blood group ABH antigens. Polymorphism of ABH antigens is induced by: (i) variations in peripheral core structure, of which four (type 1, 2, 3 and 4) are known in man; (ii) variation in inner core by branching process (blood group iI), leading to variation of unbranched vs. branched ABH determinants; (iii) biosynthetic interaction with other glycosyltransferases (Lewis, P. T/Tn blood systems) capable of acting on the same substrate as the ABH-defined transferases, and finally (iv) the nature of the glycoconjugate (glycolipid, glycoprotein of N- or O-linked type). ABH variants induced by item (i) above have been clearly distinguished qualitatively by MoAbs; e.g., at least six types of A determinants can be distinguished by qualitatively different classes of antibody. The variants induced by item (ii) create mono- vs. bivalent antigens which may be responsible for observed differences in antibody-binding affinity. Detailed studies of the chemistry of these antigens have increased our insight into blood groups, providing the basis for blood group iI and A subgrouping, as well as a relation between the ABH and Lewis, P, and T/Tn systems. A survey of the literature on distribution patterns of ABH variants is presented. It has been assumed that expression of histo-blood group antigens is developmentally regulated. Relationships between histo-blood group expression, development, differentiation and maturation, as well as malignant transformation, are discussed.
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Affiliation(s)
- H Clausen
- Biomembrane Institute, University of Washington, Seattle
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Affiliation(s)
- S Hakomori
- Biomembrane Institute, Seattle, Washington 98119
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23
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Abstract
The carbohydrate sequences of cell surface glycolipids change during differentiation and oncogenic transformation. To detect these structural changes, murine monoclonal antibodies have been produced in many different laboratories. Some of these antibodies are used to distinguish various cell types such as normal and transformed cells, while others are used to analyze developmentally regulated antigens. Recently, the structures of many of these carbohydrate antigens have been determined. The availability of these well-defined monoclonal antibodies will be useful for the study of the regulation and function of glycoconjugates.
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Abstract
A number of experimental animal tumors as well as human cancers have been characterized by dramatic changes of glycolipid composition and metabolism. This review focuses on the chemical and enzymatic basis of the appearance of tumor-associated glycolipid antigens belonging to four major structural classes, i.e., globo, ganglio, lacto type 1, and lacto type 2 series. Some antigens represent the accumulation of precursors with deletion of more complex glycolipids, and others are the result of enhanced synthesis of new structures, most of which are aberrant fucosylation or sialylation or their combination; thus, novel structures such as di- or trimeric Le chi, trifucosyl Le gamma, sialyl Le chi, sialyl dimeric Le chi and disialyl Le alpha A have been isolated and characterized. Many monoclonal antibodies are capable of recognizing antigens in high density but are not capable of reacting with the same antigen in low density. Therefore, the expression of novel structures in high densities at the cell surface is important for recognition of tumor-association antigens. Molecular models of a typical tumor-associated antigen and its organization in membranes are also presented.
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Hanqing M, Avrova N, Månsson JE, Molin K, Svennerholm L. Gangliosides and neutral glycosphingolipids of normal tissue and oat cell carcinoma of human lung. BIOCHIMICA ET BIOPHYSICA ACTA 1986; 878:360-70. [PMID: 3019414 DOI: 10.1016/0005-2760(86)90244-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Concentration and composition of gangliosides and neutral glycosphingolipids of adult human lung, and lung small cell carcinoma were studied. The structures of the glycolipids were determined by quantitative component determination, enzymic degradation, permethylation and fast atom bombardment mass spectrometry. Adult human lung contained mainly gangliosides with lactosylceramide as the basic core, GM3, GD3 and GT3, and approx. equal proportions (10%) of gangliosides of the gangliotetraosyl- and lactotetraosylceramide series. 18 gangliosides with different carbohydrate moieties were identified: four of them were only found in the tumor tissue. The adult human lung contained 85 nmol (77-120) gangliosides and 140 nmol neutral glycosphingolipids per g wet weight. Globoside was the major neutral glycolipid and there were only minor amounts of glycolipids of the lactotetraose series. In small cell carcinoma tissue the concentration of neutral glycosphingolipids was approximately twice as high than in normal lung tissue, and there was a markedly larger concentration of both lactosylceramide and glycolipids of the lactotetraose series and fucose derivatives of these. The concentration of gangliosides varied between 202 and 415 nmol per g wet weight. Compared to normal lung tissue, the tumor tissue had a lower proportion of GD3, and a higher proportion of complex gangliosides, and they contained five tumor-associated gangliosides: Fuc-GM1, Fuc-GD1b, 3'-LM1, Fuc-3'-LM1 and 6'-nLM1.
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