Pathobiological implications of mucin glycans in cancer: Sweet poison and novel targets

Biochimica Et Biophysica Acta
Seema ChughSurinder K Batra

Abstract

Mucins are large glycoproteins expressed on the epithelia that provide a protective barrier against harsh insults from toxins and pathogenic microbes. These glycoproteins are classified primarily as being secreted and membrane-bound; both forms are involved in pathophysiological functions including inflammation and cancer. The high molecular weight of mucins is attributed to their large polypeptide backbone that is extensively covered by glycan moieties that modulate the function of mucins and, hence, play an important role in physiological functions. Deregulation of glycosylation machinery during malignant transformation results in altered mucin glycosylation. This review describes the functional implications and pathobiological significance of altered mucin glycosylation in cancer. Further, this review delineates various factors such as glycosyltransferases and tumor microenvironment that contribute to dysregulation of mucin glycosylation during cancer. Finally, this review discusses the scope of mucin glycan epitopes as potential diagnostic and therapeutic targets.

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Citations

Feb 5, 2016·Journal of Cancer Research and Clinical Oncology·Elias KotteasKonstantinos Syrigos
Jan 12, 2016·The International Journal of Biochemistry & Cell Biology·Bruno L SousaBenildo S Cavada
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Mar 1, 2017·Journal of Proteome Research·Anna DrabikMarek Sierzega
May 4, 2017·Expert Opinion on Therapeutic Targets·Shailendra K GautamManeesh Jain
Mar 15, 2020·Cancers·Ramesh PothurajuSurinder K Batra
Jun 4, 2020·Cancer Metastasis Reviews·Koelina GangulySurinder K Batra

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