1
|
Lim AWW, Neves AA, Lam Shang Leen S, Lao-Sirieix P, Bird-Lieberman E, Singh N, Sheaff M, Hollingworth T, Brindle K, Sasieni P. Lectins in Cervical Screening. Cancers (Basel) 2020; 12:E1928. [PMID: 32708812 PMCID: PMC7409129 DOI: 10.3390/cancers12071928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/08/2020] [Accepted: 07/13/2020] [Indexed: 12/29/2022] Open
Abstract
Cervical screening in low-resource settings remains an unmet need. Lectins are naturally occurring sugar-binding glycoproteins whose binding patterns change as cancer develops. Lectins discriminate between dysplasia and normal tissue in several precancerous conditions. We explored whether lectins could be developed for cervical screening via visual inspection. Discovery work comprised lectin histochemistry using a panel of candidate lectins on fixed-human cervix tissue (high-grade cervical intraepithelial neoplasia (CIN3, n = 20) or normal (n = 20)), followed by validation in a separate cohort (30 normal, 25 CIN1, 25 CIN3). Lectin binding was assessed visually according to staining intensity. To validate findings macroscopically, near-infra red fluorescence imaging was conducted on freshly-resected cervix (1 normal, 7 CIN3), incubated with topically applied fluorescently-labelled lectin. Fluorescence signal was compared for biopsies and whole specimens according to regions of interest, identified by the overlay of histopathology grids. Lectin histochemistry identified two lectins-wheat germ agglutinin (WGA) and Helix pomatia agglutinin (HPA)-with significantly decreased binding to CIN3 versus normal in both discovery and validation cohorts. Findings at the macroscopic level confirmed weaker WGA binding (lower signal intensity) in CIN3 vs. normal for biopsies (p = 0.0308) and within whole specimens (p = 0.0312). Our findings confirm proof-of-principle and indicate that WGA could potentially be developed further as a probe for high-grade cervical disease.
Collapse
Affiliation(s)
- Anita WW Lim
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK;
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King’s College London, London SE1 9RT, UK
| | - André A. Neves
- Cancer Research UK Cambridge Institute, Li-Ka Shing Centre, University of Cambridge, Cambridge CB2 0RE, UK; (A.A.N.); (K.B.)
| | - Sarah Lam Shang Leen
- Department of Cellular Pathology, Barts and the London NHS Trust, Pathology and Pharmacy Building, The Royal London Hospital, 80 Newark Street, London E1 2ES, UK; (S.L.S.L.); (N.S.); (M.S.)
| | - Pierre Lao-Sirieix
- MRC Cancer Cell Unit, Hutchison-MRC Research Centre, Cambridge CB2 0XZ, UK; (P.L.-S.); (E.B.-L.)
| | - Elizabeth Bird-Lieberman
- MRC Cancer Cell Unit, Hutchison-MRC Research Centre, Cambridge CB2 0XZ, UK; (P.L.-S.); (E.B.-L.)
- Translational Gastroenterology Unit and Biomedical Research Centre, John Radcliffe Hospital, Headley Way, Headington, Oxford OX3 9DU, UK
| | - Naveena Singh
- Department of Cellular Pathology, Barts and the London NHS Trust, Pathology and Pharmacy Building, The Royal London Hospital, 80 Newark Street, London E1 2ES, UK; (S.L.S.L.); (N.S.); (M.S.)
| | - Michael Sheaff
- Department of Cellular Pathology, Barts and the London NHS Trust, Pathology and Pharmacy Building, The Royal London Hospital, 80 Newark Street, London E1 2ES, UK; (S.L.S.L.); (N.S.); (M.S.)
| | - Tony Hollingworth
- Whipps Cross University Hospital, Barts Health NHS Trust, Whipps Cross Road, London E11 1NR, UK;
| | - Kevin Brindle
- Cancer Research UK Cambridge Institute, Li-Ka Shing Centre, University of Cambridge, Cambridge CB2 0RE, UK; (A.A.N.); (K.B.)
| | - Peter Sasieni
- Wolfson Institute of Preventive Medicine, Centre for Cancer Prevention, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK;
- School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King’s College London, London SE1 9RT, UK
| |
Collapse
|
2
|
Clark GF. Functional glycosylation in the human and mammalian uterus. FERTILITY RESEARCH AND PRACTICE 2015; 1:17. [PMID: 28620522 PMCID: PMC5424290 DOI: 10.1186/s40738-015-0007-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 09/22/2015] [Indexed: 12/14/2022]
Abstract
Background Glycosylation is the most common and structurally diverse of all the post-translational modifications of proteins. Lipids and extracellular matrices are also often glycosylated. The mammalian uterus is highly enriched in glycoconjugates that are associated with the apical surfaces of epithelial cells and the secretions released by both epithelial and stromal cells. These glycoconjugates interact primarily with sperm, the implanting embryo, the fetus, and any pathogen that happens to gain entry into the uterus. Secretions of the endometrial glands increase substantially during the luteal phase of the menstrual cycle. These secretions are highly enriched in glycoproteins and mucins that promote specific uterine functions. Findings Lectins and antibodies have been employed in the majority of the studies focused on uterine glycosylation have employed to define the expression of carbohydrate sequences. However, while these studies provide insight about potential glycosylation, precise information about glycan structure is lacking. Direct sequencing studies that employ biochemical or mass spectrometric methods are far more definitive, but have rarely been employed with uterine glycoproteins. Both lectin/antibody binding and direct carbohydrate sequencing studies that have been focused on the mammalian uterus are reviewed. The primary functional role of the eutherian uterus is to facilitate fertilization and nurture the developing embryo/fetus. Trophoblasts are the primary cells that mediate the binding of the embryo and placenta to the uterine lining. In mammals that utilize hemochorial placentation, they invade the decidua, the specialized endometrial lining that forms during pregnancy. Trophoblasts have also been analyzed for their lectin/antibody binding as a complement to the analysis of the uterine cells and tissues. They will also be reviewed here. Conclusions The functional roles of the glycans linked to uterine and trophoblast glycoconjugates remain enigmatic. Another major question in the human is whether defects in placental or uterine glycosylation play a role in the development the Great Obstetrical Syndromes. More recent findings indicate that changes in glycosylation occur in trophoblasts obtained from patients that develop preeclampsia and preterm birth. The functional significance of these changes remain to be defined. Whether such shifts happen during the development of other types of obstetrical syndromes remains to be determined.
Collapse
Affiliation(s)
- Gary F Clark
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, University of Missouri, 1 Hospital Drive HSC M658, Columbia, MO 65211 USA
| |
Collapse
|
3
|
Mihaylova N, Tchorbanov A. New Biotechnologycal Approaches for Immunotherapy of Autoimmune Diseases. BIOTECHNOL BIOTEC EQ 2011. [DOI: 10.5504/bbeq.2011.0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
4
|
Nikolova KA, Mihaylova NM, Voynova EN, Tchorbanov AI, Voll RE, Vassilev TL. Selective silencing of autoreactive B lymphocytes—Following the Nature's way. Autoimmun Rev 2010; 9:775-9. [DOI: 10.1016/j.autrev.2010.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2010] [Accepted: 06/25/2010] [Indexed: 01/15/2023]
|
5
|
Králová J, Koivukorpi J, Kejík Z, Poučková P, Sievänen E, Kolehmainen E, Král V. Porphyrin–bile acid conjugates: from saccharide recognition in the solution to the selective cancer cell fluorescence detection. Org Biomol Chem 2008; 6:1548-52. [DOI: 10.1039/b717528k] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
7
|
Reddi AL, Sankaranarayanan K, Arulraj HS, Devaraj N, Devaraj H. Enzyme-linked PNA lectin-binding assay of serum T-antigen in patients with SCC of the uterine cervix. Cancer Lett 2000; 149:207-11. [PMID: 10737726 DOI: 10.1016/s0304-3835(99)00363-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The expression of Thomsen-Friendenreich antigen (T-Ag) is associated with enhanced metastatic potential, poor prognosis and decreased survival rate in a variety of malignancies, and their detection and quantification can be used in serologic diagnosis. T-antigen expressions were measured by the enzyme-linked lectin assay (ELLA) with peanut agglutinin (PNA) in the sera of patients with squamous cell carcinoma (SCC) of the uterine cervix from 286 patients. This study has a sensitivity of 80%, specificity of 82% and a positive predictive value of 93%. Quantification of the T-antigen may provide useful biochemical indices for clinical assessment of the tumor spread and invasiveness of disease in SCC of the uterine cervix. Moreover, the ELLA assay is cheap, easy to perform and reproducible in the prognosis and diagnosis of SCC of the uterine cervix.
Collapse
Affiliation(s)
- A L Reddi
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi.
| | | | | | | | | |
Collapse
|