ArticleMolecular oncology2019
FAM175B promotes apoptosis by inhibiting ATF4 ubiquitination in esophageal squamous cell carcinoma.
Article in Molecular oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 19 citations in OpenAlex.
- The ATF4-glutamine axis: a central node in cancer metabolism, stress adaptation, and therapeutic targeting.Cell death discovery · 2025Review
- CD4International journal of molecular sciences · 2025Article
- Ubiquitin-specific protease 7 exacerbates acute pancreatitis progression by enhancing ATF4-mediated autophagy.In vitro cellular & developmental biology. Animal · 2025Article
- An Overview of Research Advances in Oncology Regarding the Transcription Factor ATF4.Current drug targets · 2025Review
- Oncoprotein LAMTOR5-mediated CHOP silence via DNA hypermethylation and miR-182/miR-769 in promotion of liver cancer growth.Acta pharmacologica Sinica · 2024Article
- Ivermectin inhibits the growth of ESCC by activating the ATF4-mediated endoplasmic reticulum stress-autophagy pathway.Acta biochimica et biophysica Sinica · 2024Article
- ATF4 inhibits tumor development and mediates p-GCN2/ASNS upregulation in colon cancer.Scientific reports · 2024Article
- Probiotic-derived ferrichrome induces DDIT3-mediated antitumor effects in esophageal cancer cells.Heliyon · 2024Article
- Esophageal cancer stem cells reduce hypoxia-induced apoptosis by inhibiting the GRP78-perk-eIF2α-ATF4-CHOP pathwayJournal of gastrointestinal oncology · 2023Article
- ABRO1 arrests cardiomyocyte proliferation and myocardial repair by suppressing PSPH.Molecular therapy : the journal of the American Society of Gene Therapy · 2023Article
- A targeted multi-proteomics approach generates a blueprint of the ciliary ubiquitinome.Frontiers in cell and developmental biology · 2023Article
- Weighted Gene Coexpression Network Analysis in Mouse Livers following Ischemia-Reperfusion and Extensive Hepatectomy.Evidence-based complementary and alternative medicine : eCAM · 2021Article
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
FAM175B is a reported regulator of p53 and suppresses tumorigenesis in numerous types of cancer, but very little is known about its function in esophageal squamous cell carcinomas (ESCCs), almost 70% of which exhibit mutations in p53. Here, we report that FAM175B expression is downregulated in high-grade intraepithelial neoplasia (t = 2.44, P = 0.031) and ESCC (t = 5.664, P < 0.001) tissues relative to that in adjacent normal esophageal tissues. Exogenous expression of FAM175B in ESCC cells resulted in a decrease in proliferation rate, inhibition of colony formation, and an increase in apoptosis rate. Knockdown of FAM175B produced the opposite results. Furthermore, confocal microscopy and coimmunoprecipitation assay showed that Activating transcription factor 4 (ATF4) colocalized and interacted with FAM175B. Ubiquitination assays revealed that FAM175B inhibited ubiquitin-dependent ATF4 degradation and elevated ATF4 protein level. Finally, luciferase reporter experiments further clarified that FAM175B promoted CHOP expression in an ATF4-dependent manner. Accordingly, the proapoptotic activity of FAM175B was significantly rescued by treatment with si-ATF4 and the CHOP inhibitor 4-PBA. In summary, FAM175B inhibited ATF4 ubiquitination and promoted ESCC cell apoptosis in a p53-independent manner. FAM175B expression loss may be an early diagnostic biomarker in ESCC patients.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.