CD33 and CD33-Related Siglecs in Pathogen Recognition and Endocytosis of DC in the Innate Immune System

Kim, Cheorl-Ho

doi:10.1007/978-981-16-9081-5_12

Cited by 1 publication

(1 citation statement)

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“…Moreover, sialic acids, located in the outmost layer of tumor cells, mask neoantigens which can be recognized by the immune system [ 106 , 107 ]. Similar to the immune evasion mechanisms of some microbes, tumor cells also decorate themselves with sialic acid-binding antigens as a “don’t eat me” signal to evade host immunity [ 110 , 111 ].…”

Section: Sialylation and Cancer Immunitymentioning

confidence: 99%

Insights into the Role of Sialylation in Cancer Metastasis, Immunity, and Therapeutic Opportunity

Huang

Zhang

2022

Cancers

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Sialylation is an enzymatic process that covalently attaches sialic acids to glycoproteins and glycolipids and terminates them by creating sialic acid-containing glycans (sialoglycans). Sialoglycans, usually located in the outmost layers of cells, play crucial biological roles, notably in tumor transformation, growth, metastasis, and immune evasion. Thus, a deeper comprehension of sialylation in cancer will help to facilitate the development of innovative cancer therapies. Cancer sialylation-related articles have consistently increased over the last four years. The primary subjects of these studies are sialylation, cancer, immunotherapy, and metastasis. Tumor cells activate endothelial cells and metastasize to distant organs in part by the interactions of abnormally sialylated integrins with selectins. Furthermore, cancer sialylation masks tumor antigenic epitopes and induces an immunosuppressive environment, allowing cancer cells to escape immune monitoring. Cytotoxic T lymphocytes develop different recognition epitopes for glycosylated and nonglycosylated peptides. Therefore, targeting tumor-derived sialoglycans is a promising approach to cancer treatments for limiting the dissemination of tumor cells, revealing immunogenic tumor antigens, and boosting anti-cancer immunity. Exploring the exact tumor sialoglycans may facilitate the identification of new glycan targets, paving the way for the development of customized cancer treatments.

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