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Golgi-protein 73 Facilitates Vimentin Polymerization in Hepatocellular Carcinoma

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Journal Int J Biol Sci
Specialty Biology
Date 2023 Aug 11
PMID 37564210
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Abstract

Golgi-protein 73 (GP73) is highly expressed in hepatocellular carcinoma (HCC) and, as a secretory protein, it has been proposed as a serum biomarker indicating progression of HCC. The underlying mechanism by which GP73 may promote HCC metastasis is still poorly understood. In this study, we discovered that GP73 interacted with vimentin to facilitate Serine/Threonine-protein phosphatase PP1-alpha (PP1A)-mediated dephosphorylation of vimentin at S56 and facilitated vimentin polymerization, which blocked vimentin degradation via TRIM56-mediated ubiquitin/proteasome-dependent pathway. Strikingly, Clomipramine, a 5-hydroxytryptamine receptor (5-HTR) agonist approved for the treatment of depression, impaired GP73-mediated vimentin polymerization to effectively inhibit metastasis of HCC with high GP73 expression, which provided a new strategy against HCC metastasis. Lastly, it was found that serum GP73 (sGP73) correlated positively with vimentin in primary tissues of HCC, suggesting that sGP73 might serve as a potential serum biomarker for companion diagnosis of HCC with highly expressed vimentin. In summary, this study reveals the process of GP73-mediated vimentin polymerization and proves that Clomipramine serves as a potential drug targeting vimentin for metastatic HCC patients with high sGP73 level.

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References
1.
Chan S, Wong V, Qin S, Chan H . Infection and Cancer: The Case of Hepatitis B. J Clin Oncol. 2015; 34(1):83-90. DOI: 10.1200/JCO.2015.61.5724. View

2.
Ballard C, Hanney M, Theodoulou M, Douglas S, McShane R, Kossakowski K . The dementia antipsychotic withdrawal trial (DART-AD): long-term follow-up of a randomised placebo-controlled trial. Lancet Neurol. 2009; 8(2):151-7. DOI: 10.1016/S1474-4422(08)70295-3. View

3.
Mahammad S, Murthy S, Didonna A, Grin B, Israeli E, Perrot R . Giant axonal neuropathy-associated gigaxonin mutations impair intermediate filament protein degradation. J Clin Invest. 2013; 123(5):1964-75. PMC: 3635735. DOI: 10.1172/JCI66387. View

4.
Qin S, Bi F, Gu S, Bai Y, Chen Z, Wang Z . Donafenib Versus Sorafenib in First-Line Treatment of Unresectable or Metastatic Hepatocellular Carcinoma: A Randomized, Open-Label, Parallel-Controlled Phase II-III Trial. J Clin Oncol. 2021; 39(27):3002-3011. PMC: 8445562. DOI: 10.1200/JCO.21.00163. View

5.
Chang L, Goldman R . Intermediate filaments mediate cytoskeletal crosstalk. Nat Rev Mol Cell Biol. 2004; 5(8):601-13. DOI: 10.1038/nrm1438. View