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Updated: Jul 3, 2026

Sequencing Small Non-coding RNA from Formalin-fixed Tissues and Serum-derived Exosomes from Castration-resistant Prostate Cancer Patients
Published on: November 19, 2019
[Effect of nucleosomal binding protein 1 in androgen-independent prostatic carcinoma]
Chen Huang1, Li-Qun Zhou, Gang Song
1Department of Urology, Peking University First Hospital,Institute of Urology of Peking University, Beijing 100034, China.
Objective:
To investigate biological function of nucleosomal binding protein 1 (NSBP1) in androgen-independent prostate cancer cells.
Methods:
Androgen-independent prostate cancer cells of the line PC-3 were cultured and transfected with recombinant inhibiting siRNA expression plasmid pSilencer 2. 1-U6 neo. Before transfection and 12, 36, 60, 84, 108 and 132 h after transfection RT-PCR and Western blotting was used to detect the inhibition effect. CCK-8 was used to detect the viability of the cells. The cell cycle was examined by flow cytometry.
Results:
The cell viability was significantly reduced since 60-108 h after the transfection (all P < 0.05), the inhibition ratio reaching climax 108 hours after the transfection (P = 0.028). However, the inhibition ratio began to increase. FC showed that since 60 h after the transfection the proportion of PC-3 cells at the G2M + S phase began to increased compared to that of the control group (all P < 0.05).
Conclusion:
NSBP1 has important effect on maintaining cell viability and enhancing growth and proliferation of androgen-independent prostate cancer cells.
Insights
Nucleosomal binding protein 1 (NSBP1) is crucial for androgen-independent prostate cancer cell viability and proliferation. Inhibiting NSBP1 significantly reduces cell viability and alters cell cycle progression in PC-3 cells.
Area of Science:
- Molecular biology
- Cancer research
- Cell biology
Context:
- Androgen-independent prostate cancer (PCa) is an aggressive form of the disease.
- Identifying novel therapeutic targets is critical for treating advanced PCa.
- Nucleosomal binding protein 1 (NSBP1) is a potential target in cancer biology.
Purpose:
- To investigate the biological function of NSBP1 in androgen-independent prostate cancer cells.
- To determine the effect of NSBP1 inhibition on PCa cell viability and cell cycle progression.
Summary:
- PC-3 cells, an androgen-independent prostate cancer cell line, were transfected with siRNA targeting NSBP1.
- Cell viability was assessed using CCK-8 assays, and cell cycle distribution was analyzed by flow cytometry.
- NSBP1 inhibition significantly reduced cell viability and increased the proportion of cells in the G2M + S phase.
Impact:
- NSBP1 plays a significant role in maintaining the viability of androgen-independent prostate cancer cells.
- Targeting NSBP1 may represent a potential therapeutic strategy for advanced prostate cancer.
- Understanding NSBP1's function provides insights into the molecular mechanisms driving prostate cancer progression.
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