Functional analysis of GCNT3 for cell migration and EMT of castration-resistant prostate cancer cells.
Daiki YamamotoKatsumasa SasakiTakeo KosakaMototsugu OyaToshinori SatoPublished in: Glycobiology (2022)
Castration-resistant prostate cancer (CRPC) is a malignant tumor that is resistant to androgen deprivation therapy. Treatments for CRPC are limited, and no diagnostic markers are currently available. O-glycans are known to play an important role in cell proliferation, migration, invasion, and metastasis of cancer cells. However, the differences in the O-glycan expression profiles for normal prostate cancer (PCa) cells compared with CRPC cells have not yet been investigated. In this study, the saccharide primer method was employed to analyze the O-glycans expressed in CRPC cells. Expression levels of core 4-type O-glycans were significantly increased in CRPC cells. Furthermore, the expression level of N-Acetylglucosaminyltransferase 3 (GCNT3), a core 4-type O-glycan synthase gene, was increased in CRPC cells. The expression of core 4-type O-glycans and GCNT3 was presumed to be regulated by androgen deprivation. GCNT3 knockdown induced cell migration and epithelial-mesenchymal transition. These observations elucidate the mechanism of acquisition of castration resistance in PCa and offer new possibilities for the development of diagnostic markers and therapeutic targets in the treatment of PCa.
Keyphrases
- induced apoptosis
- cell migration
- cell cycle arrest
- prostate cancer
- epithelial mesenchymal transition
- cell proliferation
- poor prognosis
- signaling pathway
- endoplasmic reticulum stress
- stem cells
- oxidative stress
- pi k akt
- mesenchymal stem cells
- gene expression
- bone marrow
- diabetic rats
- copy number
- high speed
- combination therapy
- stress induced