Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities

Cell surface glycosylation is dynamic and often changes in response to cellular differentiation under physiological or pathophysiological conditions. Altered glycosylation on cancers cells is gaining attention due its wide-spread occurrence across a variety of cancer types and recent studies that ha...

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Main Authors: Emily Rodrigues, Matthew S. Macauley
Format: Article
Language:English
Published: MDPI AG 2018-06-01
Series:Cancers
Subjects:
Online Access:http://www.mdpi.com/2072-6694/10/6/207
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author Emily Rodrigues
Matthew S. Macauley
author_facet Emily Rodrigues
Matthew S. Macauley
author_sort Emily Rodrigues
collection DOAJ
description Cell surface glycosylation is dynamic and often changes in response to cellular differentiation under physiological or pathophysiological conditions. Altered glycosylation on cancers cells is gaining attention due its wide-spread occurrence across a variety of cancer types and recent studies that have documented functional roles for aberrant glycosylation in driving cancer progression at various stages. One change in glycosylation that can correlate with cancer stage and disease prognosis is hypersialylation. Increased levels of sialic acid are pervasive in cancer and a growing body of evidence demonstrates how hypersialylation is advantageous to cancer cells, particularly from the perspective of modulating immune cell responses. Sialic acid-binding receptors, such as Siglecs and Selectins, are well-positioned to be exploited by cancer hypersialylation. Evidence is also mounting that Siglecs modulate key immune cell types in the tumor microenvironment, particularly those responsible for maintaining the appropriate inflammatory environment. From these studies have come new and innovative ways to block the effects of hypersialylation by directly reducing sialic acid on cancer cells or blocking interactions between sialic acid and Siglecs or Selectins. Here we review recent works examining how cancer cells become hypersialylated, how hypersialylation benefits cancer cells and tumors, and proposed therapies to abrogate hypersialylation of cancer.
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spelling doaj.art-b9aa3595e2d448938507ec05ec3061802023-09-03T05:02:43ZengMDPI AGCancers2072-66942018-06-0110620710.3390/cancers10060207cancers10060207Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic OpportunitiesEmily Rodrigues0Matthew S. Macauley1Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, CanadaDepartment of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, CanadaCell surface glycosylation is dynamic and often changes in response to cellular differentiation under physiological or pathophysiological conditions. Altered glycosylation on cancers cells is gaining attention due its wide-spread occurrence across a variety of cancer types and recent studies that have documented functional roles for aberrant glycosylation in driving cancer progression at various stages. One change in glycosylation that can correlate with cancer stage and disease prognosis is hypersialylation. Increased levels of sialic acid are pervasive in cancer and a growing body of evidence demonstrates how hypersialylation is advantageous to cancer cells, particularly from the perspective of modulating immune cell responses. Sialic acid-binding receptors, such as Siglecs and Selectins, are well-positioned to be exploited by cancer hypersialylation. Evidence is also mounting that Siglecs modulate key immune cell types in the tumor microenvironment, particularly those responsible for maintaining the appropriate inflammatory environment. From these studies have come new and innovative ways to block the effects of hypersialylation by directly reducing sialic acid on cancer cells or blocking interactions between sialic acid and Siglecs or Selectins. Here we review recent works examining how cancer cells become hypersialylated, how hypersialylation benefits cancer cells and tumors, and proposed therapies to abrogate hypersialylation of cancer.http://www.mdpi.com/2072-6694/10/6/207sialic acidSiglecSelectininflammationlectinglycosylationtumor-associated macrophageimmunosurveillance
spellingShingle Emily Rodrigues
Matthew S. Macauley
Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
Cancers
sialic acid
Siglec
Selectin
inflammation
lectin
glycosylation
tumor-associated macrophage
immunosurveillance
title Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
title_full Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
title_fullStr Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
title_full_unstemmed Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
title_short Hypersialylation in Cancer: Modulation of Inflammation and Therapeutic Opportunities
title_sort hypersialylation in cancer modulation of inflammation and therapeutic opportunities
topic sialic acid
Siglec
Selectin
inflammation
lectin
glycosylation
tumor-associated macrophage
immunosurveillance
url http://www.mdpi.com/2072-6694/10/6/207
work_keys_str_mv AT emilyrodrigues hypersialylationincancermodulationofinflammationandtherapeuticopportunities
AT matthewsmacauley hypersialylationincancermodulationofinflammationandtherapeuticopportunities