PMID- 32488403 OWN - NLM STAT- MEDLINE DCOM- 20210129 LR - 20210903 IS - 1573-7233 (Electronic) IS - 0167-7659 (Print) IS - 0167-7659 (Linking) VI - 39 IP - 3 DP - 2020 Sep TI - Unraveling mucin domains in cancer and metastasis: when protectors become predators. PG - 647-659 LID - 10.1007/s10555-020-09896-5 [doi] AB - A dynamic mucosal layer shields the epithelial cells lining the body cavities and is made up of high molecular weight, heavily glycosylated, multidomain proteins called mucins. Mucins, broadly grouped into transmembrane and secreted mucins, are the first responders to any mechanical or chemical insult to the epithelia and help maintain tissue homeostasis. However, their intrinsic properties to protect and repair the epithelia are exploited during oncogenic processes, where mucins are metamorphosed to aid the tumor cells in their malignant journey. Diverse domains, like the variable number tandem repeats (VNTR), sea urchin sperm protein enterokinase and agrin (SEA), adhesion-associated domain (AMOP), nidogen-like domain (NIDO), epidermal growth factor-like domain (EGF), and von Willebrand factor type D domain (vWD) on mucins, including MUC1, MUC4, MUC5AC, MUC5B, and MUC16, have been shown to facilitate cell-to-cell and cell-to-matrix interactions, and cell-autonomous signaling to promote tumorigenesis and distant dissemination of tumor cells. Several obstacles have limited the study of mucins, including technical difficulties in working with these huge glycoproteins, the dearth of scientific tools, and lack of animal models; thus, the tissue-dependent and domain-specific roles of mucins during mucosal protection, chronic inflammation, tumorigenesis, and hematological dissemination of malignant cells are still unclear. Future studies should try to integrate information on the rheological, molecular, and biological characteristics of mucins to comprehensively delineate their pathophysiological role and evaluate their suitability as targets in future diagnostic and therapeutic strategies. FAU - Ganguly, Koelina AU - Ganguly K AD - Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. FAU - Rauth, Sanchita AU - Rauth S AD - Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. FAU - Marimuthu, Saravanakumar AU - Marimuthu S AD - Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. FAU - Kumar, Sushil AU - Kumar S AD - Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. AD - Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA. FAU - Batra, Surinder K AU - Batra SK AD - Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA. sbatra@unmc.edu. AD - Fred and Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA. sbatra@unmc.edu. LA - eng GR - R01 CA206444/CA/NCI NIH HHS/United States GR - U01 CA200466/CA/NCI NIH HHS/United States GR - R01 CA228524/CA/NCI NIH HHS/United States GR - R01 CA195586/CA/NCI NIH HHS/United States GR - U01 CA210240/CA/NCI NIH HHS/United States GR - P01 CA217798/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review PL - Netherlands TA - Cancer Metastasis Rev JT - Cancer metastasis reviews JID - 8605731 RN - 0 (Mucins) SB - IM MH - Animals MH - Humans MH - Mucins/immunology/*metabolism MH - Neoplasm Metastasis MH - Neoplasms/immunology/*metabolism/pathology MH - Protein Domains PMC - PMC7487023 MID - NIHMS1600294 OTO - NOTNLM OT - Cancer OT - Metastasis OT - Mucin domains OT - Mucins OT - Tumorigenesis COIS- Diagnostics and Therapeutics, Inc. The other authors have no conflicts of interest to declare. Conflicts of Interest: SKB is one of the co-founders of the Sanguine Diagnostic and Therapeutics, Inc. EDAT- 2020/06/04 06:00 MHDA- 2021/01/30 06:00 PMCR- 2021/09/01 CRDT- 2020/06/04 06:00 PHST- 2020/06/04 06:00 [pubmed] PHST- 2021/01/30 06:00 [medline] PHST- 2020/06/04 06:00 [entrez] PHST- 2021/09/01 00:00 [pmc-release] AID - 10.1007/s10555-020-09896-5 [pii] AID - 10.1007/s10555-020-09896-5 [doi] PST - ppublish SO - Cancer Metastasis Rev. 2020 Sep;39(3):647-659. doi: 10.1007/s10555-020-09896-5.