» Articles » PMID: 30261639

HUWE1 Ubiquitin Ligase Regulates Endoreplication and Antagonizes JNK Signaling During Salivary Gland Development

Overview
Journal Cells
Publisher MDPI
Date 2018 Sep 29
PMID 30261639
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

The HECT-type ubiquitin ligase HECT, UBA and WWE Domain Containing 1, (HUWE1) regulates key cancer-related pathways, including the Myc oncogene. It affects cell proliferation, stress and immune signaling, mitochondria homeostasis, and cell death. HUWE1 is evolutionarily conserved from to and Humans. Here, we report that the ortholog, d (CG8184), is an essential gene whose loss results in embryonic lethality and whose tissue-specific disruption establishes its regulatory role in larval salivary gland development. dHUWE1 is essential for endoreplication of salivary gland cells and its knockdown results in the inability of these cells to replicate DNA. Remarkably, dHUWE1 is a survival factor that prevents premature activation of JNK signaling, thus preventing the disintegration of the salivary gland, which occurs physiologically during pupal stages. This function of dHUWE1 is general, as its inhibitory effect is observed also during eye development and at the organismal level. Epistatic studies revealed that the loss of is compensated by dMyc proeitn expression or the loss of dmP53. dHUWE1 is therefore a conserved survival factor that regulates organ formation during development.

Citing Articles

Fear-of-intimacy-mediated zinc transport is required for Drosophila fat body endoreplication.

Ji X, Gao J, Wei T, Jin L, Xiao G BMC Biol. 2023; 21(1):88.

PMID: 37069617 PMC: 10111752. DOI: 10.1186/s12915-023-01588-0.


Polyploidy in development and tumor models in Drosophila.

Machado Costa C, Wang X, Ellsworth C, Deng W Semin Cancer Biol. 2021; 81:106-118.

PMID: 34562587 PMC: 9239401. DOI: 10.1016/j.semcancer.2021.09.011.


Increased p53 signaling impairs neural differentiation in HUWE1-promoted intellectual disabilities.

Aprigliano R, Aksu M, Bradamante S, Mihaljevic B, Wang W, Rian K Cell Rep Med. 2021; 2(4):100240.

PMID: 33948573 PMC: 8080178. DOI: 10.1016/j.xcrm.2021.100240.


Silencing Huwe1 reduces apoptosis of cortical neurons exposed to oxygen-glucose deprivation and reperfusion.

He G, Xu W, Liao H, Jiang C, Li C, Zhang W Neural Regen Res. 2019; 14(11):1977-1985.

PMID: 31290456 PMC: 6676871. DOI: 10.4103/1673-5374.259620.

References
1.
Herold S, Hock A, Herkert B, Berns K, Mullenders J, Beijersbergen R . Miz1 and HectH9 regulate the stability of the checkpoint protein, TopBP1. EMBO J. 2008; 27(21):2851-61. PMC: 2580782. DOI: 10.1038/emboj.2008.200. View

2.
Zhao X, Heng J, Guardavaccaro D, Jiang R, Pagano M, Guillemot F . The HECT-domain ubiquitin ligase Huwe1 controls neural differentiation and proliferation by destabilizing the N-Myc oncoprotein. Nat Cell Biol. 2008; 10(6):643-53. PMC: 2680438. DOI: 10.1038/ncb1727. View

3.
Gallant P, Shiio Y, Cheng P, Parkhurst S, Eisenman R . Myc and Max homologs in Drosophila. Science. 1996; 274(5292):1523-7. DOI: 10.1126/science.274.5292.1523. View

4.
Gowda P, Zhou F, Chadwell L, McEwen D . p53 binding prevents phosphatase-mediated inactivation of diphosphorylated c-Jun N-terminal kinase. J Biol Chem. 2012; 287(21):17554-17567. PMC: 3366850. DOI: 10.1074/jbc.M111.319277. View

5.
Shmueli A, Oren M . Life, death, and ubiquitin: taming the mule. Cell. 2005; 121(7):963-5. DOI: 10.1016/j.cell.2005.06.018. View