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Research article
Ke Li
Sun Yat-Sen University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-4918-6523
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This work is licensed under a CC BY 4.0 License. Read Full License
Background Recently, basic leucine zipper and the W2 domain-containing protein 1 (BZW1) is reported to be implicated in tumor progression. However, the role of BZW1 in prostate cancer remains unknown. This study is aimed to investigate the expression of BZW1 and its influence on cell proliferation in prostate cancer.
Methods The expression levels of BZW1 were measured in 136 cases of prostate cancer and matched adjacent non-cancerous prostate tissues by quantificational real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry (IHC). Then, the effect of BZW1 on cell proliferation was further explored.
Results QRT-PCR analysis shown that the mRNA levels of BZW1 in prostate cancer were significantly greater compared with those in matched adjacent non-cancerous prostate tissues (P<0.001). IHC results shown the high-expression rate of BZW1 in prostate cancer and matched adjacent non-cancerous prostate tissues were 68.4% and 32.4%, and the difference was statistically significant (P<0.001). BZW1 high-expression significantly correlated with T stage, lymph node metastasis, prostate specific antigen (PSA) and Gleason score (P<0.05). Patients with BZW1 high-expression presented unfavorable prognosis compared with those with BZW1 low-expression (P=0.002). In addition, CCK-8 and Colony formation assays revealed that BZW1 over-expression significantly promoted cell proliferation in vitro. Tumor xenograft shown BZW1 knockdown significantly inhibited tumor growth in vivo. Moreover, BZW1 overexpression activated the TGF-β1/Smad1/Smad3 pathway.
Conclusion BZW1 over-expression predicts poorer prognosis and promotes cell proliferation in prostate cancer by regulating TGF-β1/Smad pathway.
Keywords
BZW1, prognosis, Prostate cancer, survival, biomarker
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This is a preprint. It has not completed peer review.
Research article
Ke Li
Sun Yat-Sen University
Corresponding Author
ORCiD: https://orcid.org/0000-0003-4918-6523
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 07 Aug, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background Recently, basic leucine zipper and the W2 domain-containing protein 1 (BZW1) is reported to be implicated in tumor progression. However, the role of BZW1 in prostate cancer remains unknown. This study is aimed to investigate the expression of BZW1 and its influence on cell proliferation in prostate cancer.
Methods The expression levels of BZW1 were measured in 136 cases of prostate cancer and matched adjacent non-cancerous prostate tissues by quantificational real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry (IHC). Then, the effect of BZW1 on cell proliferation was further explored.
Results QRT-PCR analysis shown that the mRNA levels of BZW1 in prostate cancer were significantly greater compared with those in matched adjacent non-cancerous prostate tissues (P<0.001). IHC results shown the high-expression rate of BZW1 in prostate cancer and matched adjacent non-cancerous prostate tissues were 68.4% and 32.4%, and the difference was statistically significant (P<0.001). BZW1 high-expression significantly correlated with T stage, lymph node metastasis, prostate specific antigen (PSA) and Gleason score (P<0.05). Patients with BZW1 high-expression presented unfavorable prognosis compared with those with BZW1 low-expression (P=0.002). In addition, CCK-8 and Colony formation assays revealed that BZW1 over-expression significantly promoted cell proliferation in vitro. Tumor xenograft shown BZW1 knockdown significantly inhibited tumor growth in vivo. Moreover, BZW1 overexpression activated the TGF-β1/Smad1/Smad3 pathway.
Conclusion BZW1 over-expression predicts poorer prognosis and promotes cell proliferation in prostate cancer by regulating TGF-β1/Smad pathway.
Figure 1
Figure 2
Figure 3
Figure 4
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