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A Potential Role for HUWE1 in Modulating Cisplatin Sensitivity.

Stijn Wenmaekers^1,2, Bastiaan J Viergever^1,2, Gunjan Kumar^3,4

¹Laboratory Translational Oncology, University Medical Center Utrecht, 3584CX Utrecht, The Netherlands.

|June 2, 2021

Summary

The HECT domain-containing ubiquitin E3 ligase (HUWE1) may influence cancer cells

Keywords:

DNA damage response apoptosis biomarkers chemotherapy resistance translational medicine research ubiquitination

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Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo

Evaluating the Effectiveness of Cancer Drug Sensitization In Vitro and In Vivo

Published on: February 6, 2015

Area of Science:

Oncology
Molecular Biology
Genetics

Background:

Cisplatin is a crucial chemotherapy drug, but its effectiveness is compromised by drug resistance.
Identifying genetic factors influencing cisplatin sensitivity is vital for improving cancer treatment.

Purpose of the Study:

To explore the role of the HECT domain-containing ubiquitin E3 ligase (HUWE1) in modulating cellular responses to cisplatin.
To investigate HUWE1 as a potential biomarker for predicting and overcoming cisplatin resistance in cancer therapy.

Main Methods:

Analysis of a genome-wide CRISPR/Cas9 knock-out screen in bladder cancer cells.
Review of literature on HUWE1's interactions with DNA damage response pathways and key proteins (BRCA1, p53, Mcl-1).

Main Results:

HUWE1 was identified as a significant hit in a CRISPR screen, correlating with cisplatin sensitivity.
HUWE1 impacts the collision of platinum-DNA adducts with replication forks, a key mechanism of cisplatin cytotoxicity.
HUWE1 deficiency may enhance DNA repair and impair apoptosis, leading to cisplatin resistance.

Conclusions:

HUWE1 acts as a therapeutic response modulator in cisplatin treatment.
Understanding the HUWE1-cisplatin relationship can reveal mechanisms of therapy resistance.
HUWE1 holds potential as a clinical biomarker for personalized cancer treatment strategies.