2018
DOI: 10.1158/1541-7786.mcr-18-0042
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Targeting USP22 Suppresses Tumorigenicity and Enhances Cisplatin Sensitivity Through ALDH1A3 Downregulation in Cancer-Initiating Cells from Lung Adenocarcinoma

Abstract: Loss of monoubiquitination of histone H2B (H2Bub1) was found to be associated with poor-differentiation and enhanced malignancy of lung adenocarcinoma. This study investigated the association and impact of the ubiquitin-specific peptidase 22 (USP22), an H2Bub1 deubiquitinase, on stem cell-like characteristics and cisplatin resistance in cancer-initiating cells (CIC) from primary lung adenocarcinoma. CICs were isolated, enriched, and characterized from patient-derived cancer tissues using both tumorsphere forma… Show more

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Cited by 32 publications
(26 citation statements)
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“…The compound ID (CID) of DDP in PubChem Compound is 441203 ( Figure 1B ). It has been extensively utilized to cure different types of neoplasms, including head and neck ( 9 , 10 ), lung ( 11 , 12 ), ovarian ( 13 , 14 ), breast ( 15 , 16 ), brain ( 17 , 18 ), kidney ( 19 , 20 ), and esophagus cancers ( 21 – 23 ). In general, DDP and other platinum-based compounds are considered to be cytotoxic drugs, which can induce apoptosis of cancer cells ( 24 ).…”
Section: Introductionmentioning
confidence: 99%
“…The compound ID (CID) of DDP in PubChem Compound is 441203 ( Figure 1B ). It has been extensively utilized to cure different types of neoplasms, including head and neck ( 9 , 10 ), lung ( 11 , 12 ), ovarian ( 13 , 14 ), breast ( 15 , 16 ), brain ( 17 , 18 ), kidney ( 19 , 20 ), and esophagus cancers ( 21 – 23 ). In general, DDP and other platinum-based compounds are considered to be cytotoxic drugs, which can induce apoptosis of cancer cells ( 24 ).…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, we focused our attention on several of these genes based on the strong activation of their expression in the oncosphere, which was dependent on NUDT5 (Figure 6A). Prostagladin E synthase (PTGES) is known to be associated with an increased risk of breast cancer [46]; focadhesin (FOCAD) is a transmembrane protein of which very little is known, except a putative tumour suppressor role in gliomas [47]; the small GTPase RAB35B has putative oncogenic properties [48] and its inhibition reduces exosome release, tumour growth, CSC and metastasis [49]; the ubiquitin specific peptidase 22 (USP22) has been identified as 1 of 11 known “death from cancer” signature genes [50], promoting lethal tumour progression, being associated with end stage disease and CSC [51,52] and has gained interest as a cancer therapy target [53]. We validated the significant reduction in expression of some of these genes in oncospheres, following the inhibition of NUDT5 by qRT-PCR (Figure 6B).…”
Section: Resultsmentioning
confidence: 99%
“…Furthermore, combined inhibition of USP22 and HSP90 may provide an effective combinatorial approach to tumor therapy, which would overcome the context-dependency demonstrated in our studies. Interestingly, it was described that USP22 knockdown sensitized lung adenocarcinoma tumor spheres towards cisplatin treatment 30 . Similarly, Ganetespib-based HSP90 inhibition induced cell death via severe global chromosome fragmentation upon carboplatin treatment in vitro 31 .…”
Section: Discussionmentioning
confidence: 99%