ArticleMolecular oncology2021
MIB1 upregulates IQGAP1 and promotes pancreatic cancer progression by inducing ST7 degradation.
Article in Molecular oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 45 citations in OpenAlex.
- A novel peptide MIB1-223aa encoded by exosomal circMIB1 from cancer-associated fibroblasts drives triple-negative breast cancer metastasis and stemness via stabilizing MIB1 to activate Notch signaling.Journal of advanced research · 2026Article
- E3 ligase MIB1 regulates STAT1/P21 signaling via regulation of FGFR1 in colorectal cancer.Genes & genomics · 2025Article
- Xenotropic and polytropic retrovirus receptor 1 (XPR1) promotes progression of papillary thyroid carcinoma via the BRAF-ERK1/2-P53 signaling pathway.Journal of endocrinological investigation · 2025Article
- IQGAP1: cross-disease target via receptor-pathway networks.Frontiers in oncology · 2025Review
- Article
- NGastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2024Article
- Stabilization of KPNB1 by deubiquitinase USP7 promotes glioblastoma progression through the YBX1-NLGN3 axis.Journal of experimental & clinical cancer research : CR · 2024Article
- Sanggenon C inhibits cell proliferation and induces apoptosis by regulating the MIB1/DAPK1 axis in glioblastoma.MedComm · 2023Article
- Comprehensive bioinformatic analysis of mind bomb 1 gene in stomach adenocarcinoma.World journal of gastrointestinal oncology · 2023Article
- CEMIP, acting as a scaffold protein for bridging GRAF1 and MIB1, promotes colorectal cancer metastasis via activating CDC42/MAPK pathway.Cell death & disease · 2023Article
- Ubiquitin signaling in pancreatic ductal adenocarcinoma.Frontiers in molecular biosciences · 2023Review
- Deubiquitination of FBP1 by USP7 blocks FBP1-DNMT1 interaction and decreases the sensitivity of pancreatic cancer cells to PARP inhibitors.Molecular oncology · 2022Article
- miR-664b-3p inhibits colon cell carcinoma via negatively regulating Budding uninhibited by benzimidazole 3.Bioengineered · 2022Article
- Article
- Prognostic signature construction of energy metabolism-related genes in pancreatic cancer.Frontiers in oncology · 2022Article
- Inhibition of induced-hepatic cancerFrontiers in oncology · 2022Article
- Role of IQ Motif-Containing GTPase-Activating Proteins in Hepatocellular Carcinoma.Frontiers in oncology · 2022Review
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite recent progress in cancer treatment, the prognosis of patients with pancreatic cancer still remains poor. Pancreatic tumors are reported to display high molecular heterogeneity. Elucidating the molecular mechanisms underlying pancreatic cancer progression is essential for improving patient treatment and survival. The overexpression of E3 ubiquitin ligase mind bomb 1 (MIB1) was previously described in pancreatic cancer cells, where it enhanced tumor cell proliferation. However, the role of MIB1 in pancreatic cancer progression remains elusive. In the present study, we confirmed that MIB1 expression is elevated in pancreatic cancer tissues and that high levels of MIB associate with unfavorable prognosis. Overexpression of MIB1 enhanced proliferation and invasion of pancreatic cancer cells both in vitro and in vivo. We further investigated the molecular mechanisms downstream of MIB1 and observed for the first time that MIB1 targets suppressor of tumorigenicity 7 protein (ST7), previously described as suppressor of tumorigenicity, for proteasomal degradation. Furthermore, we found that ST7 suppressed tumor growth by downregulating IQ motif containing GTPase activating protein 1 (IQGAP1) in pancreatic tumor cells. Thus, these data show that MIB1 promotes pancreatic cancer progression by inducing ST7 degradation followed by downregulation of IQGAP1 in pancreatic cancer cells. In conclusion, our research shows that the MIB1/ST7/IQGAP1 axis is essential for pancreatic cancer progression, and MIB1 inhibition may serve as a novel therapeutic strategy in patients with pancreatic cancer.
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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.