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Cell membrane glycoconjugates undergo characteristic changes as a consequence of neoplastic transformation. The cancer-associated carbohydrate structures play key roles in cancer progression by altering the cell-cell and cell-environment interactions. In this review, we will discuss some of the most relevant cancer-associated carbohydrate structures, including the b1,6-branching of N-linked chains, the sialyl Lewis antigens, the a2,6-sialylated lactosamine, the Thomsen-Friedenreich-related antigens and gangliosides. We will describe the mechanisms leading to the expression of these structures and their interactions with sugar binding molecules, such as selectins and galectins. Finally, we will discuss how the glycosylation machinery of the cell is controlled by signal transduction pathways, epigenetic mechanisms and responds to hypoxia.
Department of Experimental Pathology, University of Bologna, Via S. Giacomo 14, 40126 Bologna, Italy.
This article was published in the following journal.
Name: Frontiers in bioscience : a journal and virtual library
This is the first study of changes in protein glycosylation due to exposure of human subjects to ionizing radiation. Site specific glycosylation patterns of 7 major plasma proteins were analyzed; 171 ...
CD47 is a membrane receptor that belongs to the immunoglobulin superfamily and plays an important role in the mechanisms of tumor immune escape. CD47 participates in tumor immune escape by combining w...
Glycosylation of therapeutic proteins has a profound impact on their safety and efficacy. Many factors shape the glycosylation of biotherapeutics, ranging from expression systems and cell culture proc...
O-glycosylation of von Willebrand factor (VWF) affects many of its functions; however there is currently no information on the occupancy of the ten putative O-glycosylation sites.
Monoclonal antibody and Fc fusion protein drugs are complex heterogeneous mixtures of numerous different protein variants and modifications. N-glycosylation as one of the most complex post-translation...
The objective of the study is to investigate congenital disorders of glycosylation in congenital heart diseases without a clear molecular or genetic basis.
Background: - A congenital disorder of glycosylation (CDG) affects the cells that make up the organs and tissues. In these cells, sugar molecules do not properly attach to other molecules...
This research trial studies genetic and molecular mechanisms in assessing response in patients with prostate cancer receiving enzalutamide therapy. Androgens can cause the growth of prosta...
The purpose of this study is to investigate the physiology associated with plasticity of the motor system. Plasticity refers to the process by which neighboring brain cells assume the res...
From a cellular perspective, breast cancers appear to develop hierarchically from a small contingent of cancer stem cells (CSCs). The presence of CSCs in tumor tissue is associated with an...
A genetically heterogeneous group of heritable disorders resulting from defects in protein N-glycosylation.
A cancer registry mandated under the National Cancer Act of 1971 to operate and maintain a population-based cancer reporting system, reporting periodically estimates of cancer incidence and mortality in the United States. The Surveillance, Epidemiology, and End Results (SEER) Program is a continuing project of the National Cancer Institute of the National Institutes of Health. Among its goals, in addition to assembling and reporting cancer statistics, are the monitoring of annual cancer incident trends and the promoting of studies designed to identify factors amenable to cancer control interventions. (From National Cancer Institute, NIH Publication No. 91-3074, October 1990)
A highly purified recombinant glycoprotein form of human THYROID-STIMULATING HORMONE, produced by recombinant DNA technology comprising two non-covalently linked subunits, an alpha subunit of 92 amino acid residues containing two N-linked glycosylation sites, and a beta subunit of 118 residues containing one N-linked glycosylation site. The amino acid sequence of thyrotropin alfa is identical to that of human pituitary thyroid stimulating hormone.
A class of drugs producing both physiological and psychological effects through a variety of mechanisms. They can be divided into "specific" agents, e.g., affecting an identifiable molecular mechanism unique to target cells bearing receptors for that agent, and "nonspecific" agents, those producing effects on different target cells and acting by diverse molecular mechanisms. Those with nonspecific mechanisms are generally further classed according to whether they produce behavioral depression or stimulation. Those with specific mechanisms are classed by locus of action or specific therapeutic use. (From Gilman AG, et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 8th ed, p252)
The study of the structure, biosynthesis, and function of CARBOHYDRATES and GLYCOSYLATION.
Bladder Cancer Brain Cancer Breast Cancer Cancer Cervical Cancer Colorectal Head & Neck Cancers Hodgkin Lymphoma Leukemia Lung Cancer Melanoma Myeloma Ovarian Cancer Pancreatic Cancer ...
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for the organ or type of cell in which they start - for example, cancer that begins in the colon is called colon cancer; cancer th...