Cited by 79RNA Research and SplicingUbiquitin and proteasome pathwaysCancer-related molecular mechanisms research

A Cancer-Specific Ubiquitin Ligase Drives mRNA Alternative Polyadenylation by Ubiquitinating the mRNA 3′ End Processing Complex

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Yang, Seung Wook, Li, Lei, Connelly, Jon P., Porter, Shaina N., Kodali, Kiran, Gan, Haiyun, Park, Jung Mi, Tacer, Klementina Fon +5 more·2020·Molecular Cell

Abstract

Alternative polyadenylation (APA) contributes to transcriptome complexity by generating mRNA isoforms with varying 3' UTR lengths. APA leading to 3' UTR shortening (3' US) is a common feature of most cancer cells; however, the molecular mechanisms are not understood. Here, we describe a widespread mechanism promoting 3' US in cancer through ubiquitination of the mRNA 3' end processing complex protein, PCF11, by the cancer-specific MAGE-A11-HUWE1 ubiquitin ligase. MAGE-A11 is normally expressed only in the male germline but is frequently re-activated in cancers. MAGE-A11 is necessary for cancer cell viability and is sufficient to drive tumorigenesis. Screening for targets of MAGE-A11 revealed that it ubiquitinates PCF11, resulting in loss of CFIm25 from the mRNA 3' end processing complex. This leads to APA of many transcripts affecting core oncogenic and tumor suppressors, including cyclin D2 and PTEN. These findings provide insights into the molecular mechanisms driving APA in cancer and suggest therapeutic strategies.

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Crossref · 10.1016/j.molcel.2019.12.022

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  • The MAGE family of ubiquitin E3 ligases, often called MAGE-RING ligases (MRLs), comprise proteins that serve as substrate-recruitment modules for other RING E3 ligases, adding to and/or altering the substrate specificity of their co-E3 ligases.

    “An example of such a family of ligases are the MAGE (melanoma antigen genes) family of ubiquitin E3 ligases, often referred to as the MAGE-RING ligases (MRLs), which comprise proteins that serve as substrate-recruitment modules for other RING E3 ligases156,157, adding to and/or altering the substrate specificity of their co-E3 ligases (reviewed elsewhere155,158).”

    From PROTAC targeted protein degraders: the past is prologue (2022) · cites this paper as [156]

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Authors
Yang, S. W., Li, L., Connelly, J. P., Porter, S. N., Kodali, K., Gan, H., Park, J. M., Tacer, K. F., Tillman, H., Peng, J., Pruett-Miller, S. M., Li, W., & Potts, P. R.
Affiliations
  • St. Jude Children's Research Hospital (US)
  • Baylor College of Medicine (US)
Corresponding author
Potts, Patrick Ryan
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2020-03
Volume
77
Issue
6
Pages
1206-1221.e7
ISSN
1097-2765 (ISSN-L)
OpenAlex
W3001951725
Cited by
79
References
81
Citations by year
2026: 10 · 2025: 8 · 2024: 9 · 2023: 18 · 2022: 17 · 2021: 9 · 2020: 8
FWCI
4.38
Type
journal article
Language
en
Open access
Locations
  • Molecular Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Cancer Society
  • National Cancer Institute
  • Worldwide Cancer Research
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
Keywords
alternative polyadenylation, 3' UTR shortening, HUWE1, ubiquitin ligase, Pcf11, CFIm25, mRNA 3' end processing, ubiquitination, cancer, cyclin D2, PTEN, tumor suppressor, oncogenes, carcinogenesis
MeSH terms
Animals, Antigens, Neoplasm, Carcinoma, Squamous Cell, Female, Humans, Lung Neoplasms, Male, Neoplasm Proteins, Ovarian Neoplasms, RNA Splicing, RNA, Messenger, Tumor Cells, Cultured, Biomarkers, Tumor, Gene Expression Regulation, Neoplastic, Mice, SCID, Mice, Inbred NOD, Apoptosis, 3' Untranslated Regions, Xenograft Model Antitumor Assays, Tumor Suppressor Proteins, Ubiquitin, Polyadenylation, mRNA Cleavage and Polyadenylation Factors, Cleavage And Polyadenylation Specificity Factor, Ubiquitin-Protein Ligases, Cell Proliferation, Mice, Ubiquitination, Carcinogenesis

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