Properties and Clinical Relevance of Speckle-Type POZ Protein in Human Colorectal Cancer
BACKGROUND: The aims of this study are to evaluate the effect of Speckle-type POZ protein (SPOP) in colorectal cancer (CRC) patients and explore its significance in the prognosis.
METHODS: We used immunohistochemistry to detect the expression of SPOP in CRC. Moreover, this result was further confirmed at the protein and messenger RNA (mRNA) level in paired CRC specimens and matched adjacent noncancerous colon tissues by Western blotting and real-time quantitative PCR (qRT-PCR), respectively. Furthermore, we evaluate the effects of SPOP on CRC cell proliferation and migration in vitro. The Kaplan-Meier method and log-rank test were employed to compare the overall survival between SPOP low expression group and SPOP high expression group. Correlation of survival with clinicopathologic parameters, including SPOP level, was investigated with multivariate analyses.
RESULTS: We confirmed frequent SPOP downregulation in both mRNA (P = 0.0286) and protein (P = 0.004) levels in CRC tissues as compared to matched adjacent nontumorous tissues. Besides, the downregulated SPOP expression in CRC tissues was significantly correlated to poor differentiation (P = 0.013), distant metastasis (P = 0.003), gross type (P < 0.001), and high TNM stage (P = 0.002). Kaplan-Meier survival analysis showed that low SPOP expression exhibited a significant correlation with poor prognosis for CRC patients. Overexpression of SPOP in CRC cell lines significantly suppressed cell proliferation, migration, and clone formation. In contrast, SPOP knockdown dramatically promoted cell proliferation, migration, and clone formation in vitro. In addition, overexpression of SPOP increased E-cadherin and suppressed vimentin in HCT116 cells and silencing of SPOP reversed all these biomarkers. Furthermore, SPOP significantly downregulated MMP2 and MMP7 protein levels in HCT116 cell lines.
CONCLUSION: Our results suggest that SPOP plays a pivotal role in colorectal cancer (CRC) through mesenchymal-epithelial transition and MMPs, and it may be a potential therapeutic target in colorectal cancer.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2015 |
|---|---|
| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
|---|---|
| Enthalten in: |
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract - 19(2015), 8 vom: 01. Aug., Seite 1484-96 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Xu, Junfei [VerfasserIn] |
|---|
| Links: |
|---|
| Anmerkungen: |
Date Completed 16.03.2016 Date Revised 13.02.2024 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1007/s11605-015-2767-6 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM249457040 |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM249457040 | ||
| 003 | DE-627 | ||
| 005 | 20240213232057.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231224s2015 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1007/s11605-015-2767-6 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1290.xml |
| 035 | |a (DE-627)NLM249457040 | ||
| 035 | |a (NLM)26022775 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Xu, Junfei |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Properties and Clinical Relevance of Speckle-Type POZ Protein in Human Colorectal Cancer |
| 264 | 1 | |c 2015 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 16.03.2016 | ||
| 500 | |a Date Revised 13.02.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: The aims of this study are to evaluate the effect of Speckle-type POZ protein (SPOP) in colorectal cancer (CRC) patients and explore its significance in the prognosis | ||
| 520 | |a METHODS: We used immunohistochemistry to detect the expression of SPOP in CRC. Moreover, this result was further confirmed at the protein and messenger RNA (mRNA) level in paired CRC specimens and matched adjacent noncancerous colon tissues by Western blotting and real-time quantitative PCR (qRT-PCR), respectively. Furthermore, we evaluate the effects of SPOP on CRC cell proliferation and migration in vitro. The Kaplan-Meier method and log-rank test were employed to compare the overall survival between SPOP low expression group and SPOP high expression group. Correlation of survival with clinicopathologic parameters, including SPOP level, was investigated with multivariate analyses | ||
| 520 | |a RESULTS: We confirmed frequent SPOP downregulation in both mRNA (P = 0.0286) and protein (P = 0.004) levels in CRC tissues as compared to matched adjacent nontumorous tissues. Besides, the downregulated SPOP expression in CRC tissues was significantly correlated to poor differentiation (P = 0.013), distant metastasis (P = 0.003), gross type (P < 0.001), and high TNM stage (P = 0.002). Kaplan-Meier survival analysis showed that low SPOP expression exhibited a significant correlation with poor prognosis for CRC patients. Overexpression of SPOP in CRC cell lines significantly suppressed cell proliferation, migration, and clone formation. In contrast, SPOP knockdown dramatically promoted cell proliferation, migration, and clone formation in vitro. In addition, overexpression of SPOP increased E-cadherin and suppressed vimentin in HCT116 cells and silencing of SPOP reversed all these biomarkers. Furthermore, SPOP significantly downregulated MMP2 and MMP7 protein levels in HCT116 cell lines | ||
| 520 | |a CONCLUSION: Our results suggest that SPOP plays a pivotal role in colorectal cancer (CRC) through mesenchymal-epithelial transition and MMPs, and it may be a potential therapeutic target in colorectal cancer | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Cadherins |2 NLM | |
| 650 | 7 | |a Nuclear Proteins |2 NLM | |
| 650 | 7 | |a RNA, Messenger |2 NLM | |
| 650 | 7 | |a Repressor Proteins |2 NLM | |
| 650 | 7 | |a SPOP protein, human |2 NLM | |
| 650 | 7 | |a Vimentin |2 NLM | |
| 650 | 7 | |a MMP7 protein, human |2 NLM | |
| 650 | 7 | |a EC 3.4.24.23 |2 NLM | |
| 650 | 7 | |a Matrix Metalloproteinase 7 |2 NLM | |
| 650 | 7 | |a EC 3.4.24.23 |2 NLM | |
| 650 | 7 | |a MMP2 protein, human |2 NLM | |
| 650 | 7 | |a EC 3.4.24.24 |2 NLM | |
| 650 | 7 | |a Matrix Metalloproteinase 2 |2 NLM | |
| 650 | 7 | |a EC 3.4.24.24 |2 NLM | |
| 700 | 1 | |a Wang, Feiran |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Haiyan |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Yasu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Jinpeng |e verfasserin |4 aut | |
| 700 | 1 | |a Qin, Jun |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract |d 1997 |g 19(2015), 8 vom: 01. Aug., Seite 1484-96 |w (DE-627)NLM096454490 |x 1873-4626 |7 nnns |
| 773 | 1 | 8 | |g volume:19 |g year:2015 |g number:8 |g day:01 |g month:08 |g pages:1484-96 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1007/s11605-015-2767-6 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 19 |j 2015 |e 8 |b 01 |c 08 |h 1484-96 | ||