TUBB3 Reverses Resistance to Docetaxel and Cabazitaxel in Prostate Cancer.
Antineoplastic Agents
/ pharmacology
Cell Line, Tumor
Chromones
/ pharmacology
Docetaxel
/ pharmacology
Drug Resistance, Neoplasm
/ drug effects
Enzyme Inhibitors
/ pharmacology
Gene Knockdown Techniques
Humans
Male
Morpholines
/ pharmacology
PTEN Phosphohydrolase
/ metabolism
Prostatic Neoplasms
/ drug therapy
Protein Binding
Taxoids
/ pharmacology
Tubulin
/ genetics
LY294002
PTEN
TUBB3
cabazitaxel
cross-resistance
docetaxel
prostate cancer
Journal
International journal of molecular sciences
ISSN: 1422-0067
Titre abrégé: Int J Mol Sci
Pays: Switzerland
ID NLM: 101092791
Informations de publication
Date de publication:
13 Aug 2019
13 Aug 2019
Historique:
received:
22
07
2019
revised:
03
08
2019
accepted:
05
08
2019
entrez:
16
8
2019
pubmed:
16
8
2019
medline:
17
1
2020
Statut:
epublish
Résumé
Recent studies have reported that TUBB3 overexpression is involved in docetaxel (DTX) resistance in prostate cancer (PCa). The aim of this study was to clarify the role of TUBB3 in DTX and cabazitaxel (CBZ) resistance, and cross-resistance between DTX and CBZ in PCa. We analyzed the effect of TUBB3 knockdown on DTX and CBZ resistance and examined the interaction between TUBB3 and PTEN. We also investigated the role of phosphoinositide 3-kinases (PI3K) inhibitor (LY294002) in DTX and CBZ resistance. TUBB3 expression was upregulated in DTX-resistant and CBZ-resistant cells. TUBB3 knockdown re-sensitized DTX-resistant cells to DTX and CBZ-resistant cells to CBZ. Additionally, TUBB3 knockdown re-sensitized DTX-resistant cell lines to CBZ, indicating that TUBB3 mediates cross-resistance between DTX and CBZ. Knockdown of TUBB3 enhanced PTEN expression, and PTEN knockout enhanced TUBB3 expression. LY294002 suppressed TUBB3 expression in DTX-resistant and CBZ-resistant cell lines. LY294002 re-sensitized DTX-resistant cell lines to DTX and CBZ-resistant cell lines to CBZ. These results suggest that TUBB3 is involved in DTX resistance and CBZ resistance. A combination of LY294002/DTX and that of LY294002/CBZ could be potential strategies for PCa treatment.
Identifiants
pubmed: 31412591
pii: ijms20163936
doi: 10.3390/ijms20163936
pmc: PMC6719236
pii:
doi:
Substances chimiques
Antineoplastic Agents
0
Chromones
0
Enzyme Inhibitors
0
Morpholines
0
TUBB3 protein, human
0
Taxoids
0
Tubulin
0
Docetaxel
15H5577CQD
2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one
31M2U1DVID
cabazitaxel
51F690397J
PTEN Phosphohydrolase
EC 3.1.3.67
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Grants-in-Aid for Scientific Research
ID : 19K18586
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