1
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Racherla KS, Dovalovsky K, Patel M, Harper E, Barnard J, Nasifuzzaman SM, Smith M, Sikand R, Drinka E, Puri N. PRMT-1 and p120-Catenin as EMT Mediators in Osimertinib Resistance in NSCLC. Cancers (Basel) 2023; 15:3461. [PMID: 37444572 DOI: 10.3390/cancers15133461] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
Osimertinib, an irreversible tyrosine kinase inhibitor, is a first-line therapy in EGFR-mutant NSCLC patients. Prolonged treatment with Osimertinib leads to resistance due to an acquired C797S mutation in the EGFR domain and other mechanisms, such as epithelial-mesenchymal transition (EMT). In this study, we investigated the role of PRMT-1 and p120-catenin in mediating Osimertinib resistance (OR) through EMT. These studies found upregulation of gene and protein expression of PRMT-1, p120-catenin and Kaiso factor. Knockdown of p120-catenin using siRNA increased OR efficacy by 45% as compared to cells treated with mock siRNA and OR. After 24 h of transfection, the percentage wound closure in cells transfected with p120-catenin siRNA was 26.2%. However, in mock siRNA-treated cells the wound closure was 7.4%, showing its involvement in EMT. We also found high levels of p120-catenin expressed in 30% of smokers as compared to 5.5% and 0% of non-smokers and quit-smokers (respectively) suggesting that smoking may influence p120-catenin expression in NSCLC patients. These results suggest that biomarkers such as PRMT-1 may mediate EMT by methylating Twist-1 and increasing p120-catenin expression, which causes transcriptional activation of genes associated with Kaiso factor to promote EMT in Osimertinib-resistant cells.
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Affiliation(s)
- Kavya Sri Racherla
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Katrina Dovalovsky
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Meet Patel
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Emma Harper
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Jacob Barnard
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - S M Nasifuzzaman
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Mason Smith
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Riya Sikand
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
| | - Eva Drinka
- Department of Pathology, University of Wisconsin Health, Swedish American Hospital, Rockford, IL 61104, USA
| | - Neelu Puri
- Department of Biomedical Sciences, University of Illinois College of Medicine at Rockford, Rockford, IL 61107, USA
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2
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Kim WR, Park EG, Lee YJ, Bae WH, Lee DH, Kim HS. Integration of TE Induces Cancer Specific Alternative Splicing Events. Int J Mol Sci 2022; 23:10918. [PMID: 36142830 PMCID: PMC9502224 DOI: 10.3390/ijms231810918] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Alternative splicing of messenger RNA (mRNA) precursors contributes to genetic diversity by generating structurally and functionally distinct transcripts. In a disease state, alternative splicing promotes incidence and development of several cancer types through regulation of cancer-related biological processes. Transposable elements (TEs), having the genetic ability to jump to other regions of the genome, can bring about alternative splicing events in cancer. TEs can integrate into the genome, mostly in the intronic regions, and induce cancer-specific alternative splicing by adjusting various mechanisms, such as exonization, providing splicing donor/acceptor sites, alternative regulatory sequences or stop codons, and driving exon disruption or epigenetic regulation. Moreover, TEs can produce microRNAs (miRNAs) that control the proportion of transcripts by repressing translation or stimulating the degradation of transcripts at the post-transcriptional level. Notably, TE insertion creates a cancer-friendly environment by controlling the overall process of gene expression before and after transcription in cancer cells. This review emphasizes the correlative interaction between alternative splicing by TE integration and cancer-associated biological processes, suggesting a macroscopic mechanism controlling alternative splicing by TE insertion in cancer.
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Affiliation(s)
- Woo Ryung Kim
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Korea
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
| | - Eun Gyung Park
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Korea
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
| | - Yun Ju Lee
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Korea
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
| | - Woo Hyeon Bae
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Korea
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
| | - Du Hyeong Lee
- Department of Integrated Biological Sciences, Pusan National University, Busan 46241, Korea
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
| | - Heui-Soo Kim
- Institute of Systems Biology, Pusan National University, Busan 46241, Korea
- Department of Biological Sciences, College of Natural Sciences, Pusan National University, Busan 46241, Korea
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3
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Zhang Y, Yan S, Li Y, Zhang J, Luo Y, Li P, Yang Y, Li Y, Huang Y, Wang E. Inhibin βA is an independent prognostic factor that promotes invasion via Hippo signaling in non‑small cell lung cancer. Mol Med Rep 2021; 24:789. [PMID: 34505633 PMCID: PMC8441965 DOI: 10.3892/mmr.2021.12429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022] Open
Abstract
Inhibin βA (INHBA) serves a prognostic and tumor-promoting role in numerous types of cancer. The present study aimed to determine the clinical significance of INHBA in non-small cell lung cancer (NSCLC) and the mechanisms underlying its potential tumor-promoting effect. INHBA expression was detected in clinical NSCLC samples using immunohistochemistry. In vivo loss- and gain-of-function studies were performed to determine the effects of INHBA on NSCLC invasion. In addition, protein and mRNA expression levels of INHBA, yes-associated protein (YAP), large tumor suppressor 1/2 kinase (LATS1/2), connective tissue growth factor, cysteine rich angiogenic inducer 61 and Merlin were assessed using western blotting and reverse transcription-quantitative PCR, respectively, to investigate the mechanism by which INHBA may affect the invasion of NSCLC. The present study revealed that INHBA was significantly upregulated in 238 clinical NSCLC samples compared with its expression levels in paired adjacent non-cancerous tissues, and in metastatic nodules compared with in primary tumors. Notably, high INHBA expression was statistically associated with clinicopathological features, including poor differentiation and advanced tumor stage. INHBA positivity was statistically related to decreased 5-year overall survival, for which INHBA was an independent prognostic factor. Furthermore, INHBA promoted NSCLC invasion in vitro. In NSCLC, INHBA expression was associated with the nuclear levels of YAP and INHBA overexpression enhanced the invasive abilities of NSCLC cells via inhibiting the Hippo pathway. Mechanistically, INHBA inhibited l LATS1/2 phosphorylation and induced YAP nuclear translocation by downregulating the protein expression levels of Merlin. In conclusion, INHBA may negatively regulate the Hippo pathway to act as a tumor promotor, and could represent a marker of prognosis in NSCLC.
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Affiliation(s)
- Yijun Zhang
- Department of Pathology, The First Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110010, P.R. China
| | - Shumei Yan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Yan Li
- Department of Radiotherapy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, P.R. China
| | - Jiangbo Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Yuan Luo
- Department of Pathology, The First Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110010, P.R. China
| | - Pengcheng Li
- Department of Pathology, The First Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110010, P.R. China
| | - Yuanzhong Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Yong Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Yuhua Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
| | - Enhua Wang
- Department of Pathology, The First Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning 110010, P.R. China
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4
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Faux MC, King LE, Kane SR, Love C, Sieber OM, Burgess AW. APC regulation of ESRP1 and p120-catenin isoforms in colorectal cancer cells. Mol Biol Cell 2020; 32:120-130. [PMID: 33237836 PMCID: PMC8120691 DOI: 10.1091/mbc.e20-05-0321] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The adenomatous polyposis coli (APC) tumor suppressor protein is associated with the regulation of Wnt signaling; however, APC also controls other cellular processes including the regulation of cell adhesion and migration. The expression of full-length APC in SW480 colorectal cancer cells (SW480+APC) not only reduces Wnt signaling, but increases membrane E-cadherin and restores cell–cell adhesion. This report describes the effects of full-length, wild-type APC (fl-APC) on cell–cell adhesion genes and p120-catenin isoform switching in SW480 colon cancer cells: fl-APC increased the expression of genes implicated in cell–cell adhesion, whereas the expression of negative regulators of E-cadherin was decreased. Analysis of cell–cell adhesion-related proteins in SW480+APC cells revealed an increase in p120-catenin isoform 3A; similarly, depletion of APC altered the p120-catenin protein isoform profile. Expression of ESRP1 (epithelial splice regulatory protein 1) is increased in SW480+APC cells, and its depletion results in reversion to the p120-catenin isoform 1A phenotype and reduced cell–cell adhesion. The ESRP1 transcript is reduced in primary colorectal cancer, and its expression correlates with the level of APC. Pyrvinium pamoate, which inhibits Wnt signaling, promotes ESRP1 expression. We conclude that re-expression of APC restores the cell–cell adhesion gene and posttranscriptional regulatory programs leading to p120-catenin isoform switching and associated changes in cell–cell adhesion.
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Affiliation(s)
- Maree C Faux
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Lauren E King
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Serena R Kane
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Christopher Love
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Oliver M Sieber
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia.,Department of Biochemistry & Molecular Biology, Monash University, Clayton, Victoria 3800, Australia.,Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria 3052, Australia
| | - Antony W Burgess
- Personalised Oncology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia.,Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria 3052, Australia
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5
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Kim HA, Lee D, Lee H, Lee J. Lysimachia christinae Hance as an anticancer agent against breast cancer cells. Food Sci Nutr 2020; 8:5717-5728. [PMID: 33133573 PMCID: PMC7590289 DOI: 10.1002/fsn3.1875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 12/24/2022] Open
Abstract
Breast cancer is the most common cancer in women, and metastasis is the leading cause of death in breast cancer patients. Although chemoprevention is widely employed to treat breast cancer, anticancer drugs can cause significant adverse effects. Lysimachia christinae Hance (LH) is a traditional Chinese medicinal plant with diverse therapeutic effects. However, its potential anticancer activity has not been fully investigated in breast cancers to date. Using high-performance liquid chromatography-mass spectrometry, we found that the main constituent of LH extract (LHE) was rutin. Our results indicated that LHE or rutin markedly decreased the proliferation and viability of estrogen receptor (ER)-positive MCF-7 and ER-negative HCC38 human breast cancer cells. LHE treatment induced morphological changes in apoptotic nuclei using 4',6-diamidino-2-phenylindole (DAPI) staining. Annexin V-fluorescein isothiocyanate (FITC) propidium iodide (PI) staining assay revealed that apoptosis significantly increased in both breast cancer cell types after LHE treatment. Additionally, the expression of poly (ADP-ribose) polymerase (PARP), Bcl-2, and phospho-Akt decreased, while that of cleaved PARP and p53 increased, in both cell types. Furthermore, LHE treatment inhibited epithelial-mesenchymal transition (EMT). LHE treatment significantly upregulated E-cadherin level in MCF-7 and HCC38 cells, while vimentin level was downregulated in HCC38 cells. In addition, transwell and wound-healing assays revealed that LHE or rutin inhibited breast cancer cell migration. Overall, these findings demonstrate that LHE is a promising therapeutic agent that acts by promoting apoptosis and reducing cell proliferation, EMT, and cell migration in ER-positive and ER-negative breast cancer cells.
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Affiliation(s)
- Hyun A. Kim
- Department of Food and NutritionChosun UniversityGwangjuKorea
| | | | - Hwan Lee
- College of PharmacyChosun UniversityGwangjuKorea
| | - Joomin Lee
- Department of Food and NutritionChosun UniversityGwangjuKorea
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6
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Yu K, Xiang L, Li S, Wang S, Chen C, Mu H. HIF1α promotes prostate cancer progression by increasing ATG5 expression. Anim Cells Syst (Seoul) 2019; 23:326-334. [PMID: 31700698 PMCID: PMC6830197 DOI: 10.1080/19768354.2019.1658637] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/09/2019] [Accepted: 07/26/2019] [Indexed: 01/07/2023] Open
Abstract
Prostate cancer (PCa) is the most frequently diagnosed cancer among men. However, the major modifiable risk factors for PCa are poorly known and its specific mechanism of progression remains unclear. Here we reported that, in prostate cancer cells, the autophagy level was elevated under hypoxic condition, as well as the mRNA and protein level of ATG5, which is an important gene related to autophagy. Furthermore, we found HIF1α could directly bind to the promoter of ATG5 and promote the expression of ATG5 on transcriptional level by luciferase assay and ChIP assay. Intriguingly, overexpression of HIF1α by HIF1α-M could increase tumor size and the effect could be abolished by knockdown ATG5 by si-ATG5 in BALB/cA-nu/nu nude mice. Importantly, HIF1α could also promote the metastasis of PC-3 cells by upregulating the ATG5 and autophagy level and knockdown ATG5 and inhibition autophagy both could abolish the effect of overexpression of HIF1α on the migration of PC-3 cells. Taken together, our results, for the first time, proved that HIF1α could promote the proliferation and migration of PC-3 cells by direct upregulating ATG5 and autophagy level in PC-3 prostate cancer cells. Our findings not only provide new perspective for the relationship between hypoxia and autophagy, but also add new potential therapeutic regimens for the treatment of prostate cancers.
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Affiliation(s)
- Kaiyuan Yu
- The Second Affiliated Hospital & YuYing Children's Hospital of Wenzhou Medical University, Wenzhou City, People's Republic of China
| | - Luxia Xiang
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Shaoxun Li
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Shuaibin Wang
- The Second Affiliated Hospital & YuYing Children's Hospital of Wenzhou Medical University, Wenzhou City, People's Republic of China
| | - Chaohao Chen
- The Second Affiliated Hospital & YuYing Children's Hospital of Wenzhou Medical University, Wenzhou City, People's Republic of China
| | - Haiqi Mu
- The Second Affiliated Hospital & YuYing Children's Hospital of Wenzhou Medical University, Wenzhou City, People's Republic of China
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7
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The Ras-related gene ERAS is involved in human and murine breast cancer. Sci Rep 2018; 8:13038. [PMID: 30158566 PMCID: PMC6115423 DOI: 10.1038/s41598-018-31326-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/02/2018] [Indexed: 01/06/2023] Open
Abstract
Although Ras genes are frequently mutated in human tumors, these mutations are uncommon in breast cancer. However, many breast tumors show evidences of Ras pathway activation. In this manuscript, we have analyzed and characterized mouse mammary tumors generated by random Sleeping Beauty transposon mutagenesis and identify ERAS -a member of the RAS family silenced in adult tissues- as a new gene involved in progression and malignancy of breast cancer. Forced expression of ERAS in human non-transformed mammary gland cells induces a process of epithelial-to-mesenchymal transition and an increase in stem cells markers; these changes are mediated by miR-200c downregulation. ERAS expression in human tumorigenic mammary cells leads to the generation of larger and less differentiated tumors in xenotransplant experiments. Immunohistochemical, RT-qPCR and bioinformatics analysis of human samples show that ERAS is aberrantly expressed in 8–10% of breast tumors and this expression is associated with distant metastasis and reduced metastasis-free survival. In summary, our results reveal that inappropriate activation of ERAS may be important in the development of a subset of breast tumors. These findings open the possibility of new specific treatments for this subset of ERAS-expressing tumors.
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8
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Sun Z, Cao Y, Hu G, Zhao J, Chen M, Wang S, Ye Z, Chen H, Wang W, Wang Y. Jinfu'an Decoction Inhibits Invasion and Metastasis in Human Lung Cancer Cells (H1650) via p120ctn-Mediated Induction and Kaiso. Med Sci Monit 2018; 24:2878-2886. [PMID: 29735970 PMCID: PMC5965019 DOI: 10.12659/msm.909748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/03/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Previous research showed that Jin-Fu-An decoction has a significant effect on lung cancer. However, it remains unclear whether p120ctn and its transcription factor Kaiso play a role in lung cancer cell proliferation, adhesion, migration, and metastasis. MATERIAL AND METHODS Proliferation inhibition was detected by CCK-8 assay. The migration and invasion were detected using Transwell assay. The location and expression of p120ctn and Kaiso were monitored by immunofluorescence staining. The expression changes of p120ctn, its isoform 1A, its S288 phosphorylation, and Kaiso were measured by Western blot assay. RESULTS The lung cancer cell line H1650 administered Jin-Fu-An decoction had significantly reduced the growth in dose-dependent and time-dependent manners. Migration and metastasis were significantly inhibited by application of Jin-Fu-An decoction in a dose-dependent manner. Additionally, Jin-Fu-An decoction decreased the expressions of p120ctn, its isoform 1A, and its S288 phosphorylation, but the protein level of Kaiso was elevated. CONCLUSIONS Jin-Fu-An decoction inhibits the proliferation, adhesion, migration, and metastasis though down-regulation of p120ctn or its isoform 1A expression, mediating the up-regulation of Kaiso. The underlying mechanism of Jin-Fu-An decoction might involve targeting the lower expression of p120ctn S288 phosphorylation, which suggests that Jin-Fu-An decoction may be a potential therapeutic measure as prevention and control of recurrence and metastasis of lung cancer.
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Affiliation(s)
- Zhe Sun
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Yang Cao
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Guangyun Hu
- Guangdong Second Provincial Traditional Chinese Medicine Hospital, Guangzhou, Guangdong, P.R. China
| | - Jiuda Zhao
- Affiliated Hospital of Qinghai University, Affiliated Cancer Hospital of Qinghai University, Xining, Qinghai, P.R. China
| | - Ming Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Sisi Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Zengjie Ye
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Hongyu Chen
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Wenping Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
| | - Ya’nan Wang
- Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, P.R. China
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9
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Yu L, Hua X, Yang Y, Li K, Zhang Q, Yu L. An updated meta-analysis of the prognostic value of decreased E-cadherin expression in ovarian cancer. Oncotarget 2017; 8:81176-81185. [PMID: 29113377 PMCID: PMC5655272 DOI: 10.18632/oncotarget.20885] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/26/2017] [Indexed: 11/25/2022] Open
Abstract
Decreased epithelial cadherin (E-cadherin) expression is hypothesized to be related to poor prognosis of ovarian cancer, but the predictive value is still inconsistent. We conducted an updated meta-analysis with a total of 16 studies enrolling 1720 patients to estimate the prognostic value of decreased E-cadherin expression in ovarian cancer. Reduced expression of E-cadherin was significantly associated to poor overall survival (HR = 1.74, 95% CI: 1.40–2.17) and progression-free survival (HR = 1.45, 95% CI: 1.12–1.86) with a large heterogeneity for overall survival. In addition, we found that decreased expression of E-cadherin was significantly correlated with International Federation of Gynecology and Obstetrics grade (HR = 3.74, 95% CI: 2.24–6.23), E-cadherin membranous (HR = 1.47, 95% CI: 1.01–2.14), pathologic grade (HR = 1.41, 95% CI: 1.01–1.97), residual tumor size (HR = 2.72, 95% CI: 1.99–3.72), and surgery (HR = 3.21, 95% CI: 1.19–8.67). Our finding suggests that decreased E-cadherin expression may be a predictor of poor ovarian cancer prognosis.
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Affiliation(s)
- LiLi Yu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Xiaoli Hua
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Yu Yang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Ke Li
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Qilin Zhang
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
| | - Lixiu Yu
- Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, PR China
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10
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Li Z, Yin S, Zhang L, Liu W, Chen B. Prognostic value of reduced E-cadherin expression in breast cancer: a meta-analysis. Oncotarget 2017; 8:16445-16455. [PMID: 28147315 PMCID: PMC5369975 DOI: 10.18632/oncotarget.14860] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 01/16/2017] [Indexed: 01/12/2023] Open
Abstract
The prognostic value of E-cadherin expression in patients with breast cancer has been studied for years, yet results remain controversial. We thus performed a comprehensive evaluation of the association between E-cadherin expression and prognosis through a meta-analysis. The databases PubMed, Embase and Cochrane Library were searched. A total of 7,353 patients from 33 studies were subject to final analysis. The results showed there was a significant association between reduced expression of E-cadherin and overall survival (OS) (HR 1.79, 95% CI 1.41–2.27) and disease-free survival (DFS) (HR 1.62, 95% CI 1.31–1.99) in breast cancer. Downregulated expression of E-cadherin significantly correlated with tumor histological grade (OR 1.44, 95% CI 1.06–1.96), TNM stage (OR 2.44, 95% CI 1.75–3.41), tumor size (OR 1.38, 95% CI 1.18–1.60), lymph node status (OR 1.55, 95% CI 1.15–2.10), and progesterone receptor status (OR 1.44, 95% CI 1.10–1.88).This meta-analysis suggested that reduced E-cadherin expression might be a predictor of a poorer prognosis and could be a potentially new gene therapy target for breast cancer patients.
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Affiliation(s)
- Zhan Li
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Songcheng Yin
- Department of Surgical Oncology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Lei Zhang
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Weiguang Liu
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Bo Chen
- Department of Breast Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, China
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11
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Zhang Y, Yan S, Chen J, Gan C, Chen D, Li Y, Wen J, Kremerskothen J, Chen S, Zhang J, Cao Y. WWC2 is an independent prognostic factor and prevents invasion via Hippo signalling in hepatocellular carcinoma. J Cell Mol Med 2017; 21:3718-3729. [PMID: 28815883 PMCID: PMC5706493 DOI: 10.1111/jcmm.13281] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 05/23/2017] [Indexed: 01/17/2023] Open
Abstract
WWC family proteins negatively regulate HEK293 cell proliferation and organ growth by suppressing the transcriptional activity of Yes‐associated protein (YAP), a major effector of the Hippo pathway. The function of the scaffolding protein WWC1 (also called KIBRA) has been intensively studied in cells and animal models. However, the expression and clinicopathologic significance of WWC2 in cancer are poorly characterized. This study aimed to clarify the biological function and mechanism of action of WWC2 in hepatocellular carcinoma (HCC). Retrospective analysis revealed WWC2 was significantly down‐regulated in 95 clinical HCC tissues compared to the paired adjacent non‐cancerous tissues. Moreover, loss of WWC2 expression was significantly associated with advanced clinicopathological features, including venous infiltration, larger tumour size and advanced TNM stage. Positive WWC2 expression was associated with significantly better 5‐year overall survival, and WWC2 was an independent prognostic factor for overall survival in HCC. Moreover, we confirmed WWC2 inhibits HCC cell invasive ability in vitro. Elevated YAP expression was also observed in the same cohort of HCC tissues. Pearson's correlation coefficient analysis indicated WWC2 expression correlated inversely with nuclear YAP protein expression in HCC. Mechanistically, we confirmed overexpression of WWC2 suppresses the invasive and metastatic potential of HCC cells by activating large tumour suppressor 1 and 2 kinases (LATS1/2), which in turn phosphorylates the transcriptional co‐activator YAP. Overall, this study indicates WWC2 functions as a tumour suppressor by negatively regulating the Hippo signalling pathway and may serve as a prognostic marker in HCC.
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Affiliation(s)
- Yijun Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Shumei Yan
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jiewei Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Caixia Gan
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Dong Chen
- Department of Urology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yan Li
- Department of Oncology, Tumor Angiogenesis and Microenvironment Laboratory (TAML), First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Jiahuai Wen
- Department of Breast Oncology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Joachim Kremerskothen
- Internal Medicine D, Department of Nephrology, Hypertension and Rheumatology, University Hospital Muenster, Muenster, Germany
| | - Shilu Chen
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jiangbo Zhang
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Yun Cao
- Collaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
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12
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Zhang X, Zhang Y, Miao Y, Zhou H, Jiang G, Wang E. TMEM17 depresses invasion and metastasis in lung cancer cells via ERK signaling pathway. Oncotarget 2017; 8:70685-70694. [PMID: 29050311 PMCID: PMC5642586 DOI: 10.18632/oncotarget.19977] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 07/18/2017] [Indexed: 01/06/2023] Open
Abstract
Transmembrane protein 17(TMEM17) is a newly identified protein, its expression pattern and clinicopathological relevance is still unclear. In this study, western blot assay was performed in 20 paired lung cancer samples and found that TMEM17 protein levels were lower in lung cancer tissues than that in the corresponding normal lung tissues (p=0.010). Immunohistochemistry staining in 143 cases lung cancer specimens also showed that TMEM17 expression in lung cancer tissues were significantly lower than adjacent normal lung tissues (35.7% vs 63.2%, p<0.001). And negative TMEM17 expression was significantly associated with poor histological differentiation (p=0.027), advanced TNM stages (p=0.006), positive lymph node metastasis (p=0.002) and poor prognosis (p=0.002). After overexpressing TMEM17, levels of p-ERK and its downstream molecules, p-P90RSK and Snail, were down-regulated, while levels of Occludin and Zo-1 were up-regulated, which result in the inhibition of invasion and migration ability of lung cancer cells. The effects were reversed by the incorporation of specific ERK inhibitor PD98059. In conclusion, loss of TMEM17 correlates with the development of non-small cell lung cancer (NSCLC) and predicts adverse clinical outcome of NSCLC patients. The effect of TMEM17 on inhibiting invasion and migration may attribute to restoring Occludin and Zo-1 expression through inactivating ERK-P90RSK-Snail pathway.
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Affiliation(s)
- Xiupeng Zhang
- Department of Pathology, College of Basic Medical Sciences and The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yong Zhang
- Department of Pathology, Cancer Hospital of China Medical University, Shenyang, China
| | - Yuan Miao
- Department of Pathology, College of Basic Medical Sciences and The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Haijing Zhou
- Department of Pathology, College of Basic Medical Sciences and The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Guiyang Jiang
- Department of Pathology, College of Basic Medical Sciences and The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Enhua Wang
- Department of Pathology, College of Basic Medical Sciences and The First Affiliated Hospital, China Medical University, Shenyang, China
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13
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Wang R, Chen YS, Dashwood WM, Li Q, Löhr CV, Fischer K, Ho E, Williams DE, Dashwood RH. Divergent roles of p120-catenin isoforms linked to altered cell viability, proliferation, and invasiveness in carcinogen-induced rat skin tumors. Mol Carcinog 2017; 56:1733-1742. [PMID: 28218467 DOI: 10.1002/mc.22630] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 02/02/2017] [Accepted: 02/16/2017] [Indexed: 12/15/2022]
Abstract
The heterocyclic amine 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) targets multiple organs for tumorigenesis in the rat, including the colon and the skin. PhIP-induced skin tumors were subjected to mutation screening, which identified genetic changes in Hras (7/40, 17.5%) and Tp53 (2/40, 5%), but not in Ctnnb1, a commonly mutated gene in PhIP-induced colon tumors. Despite the absence of Ctnnb1 mutations, β-catenin was overexpressed in nuclear and plasma membrane fractions from PhIP-induced skin tumors, coinciding with loss of p120-catenin from the plasma membrane, and the appearance of multiple p120-catenin-associated bands in the nuclear extracts. Real-time RT-PCR revealed that p120-catenin isoforms 1 and 4 were upregulated in PhIP-induced skin tumors, whereas p120-catenin isoform 3 was expressed uniformly, compared with adjacent normal-looking tissue. In human epidermoid carcinoma and colon cancer cells, transient transfection of p120-catenin isoform 1A enhanced the viability and cell invasion index, whereas transient transfection of p120-catenin isoform 4A increased cell viability and cell proliferation. Knockdown of p120-catenin revealed a corresponding reduction in the expression of β-catenin and a transcriptionally regulated target, Ccnd1/Cyclin D1. Co-immunoprecipitation experiments identified associations of β-catenin with p120-catenin isoforms in PhIP-induced skin tumors and human cancer cell lines. The results are discussed in the context of therapeutic strategies that might target different p120-catenin isoforms, providing an avenue to circumvent constitutively active β-catenin arising via distinct mechanisms in skin and colon cancer.
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Affiliation(s)
- Rong Wang
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon
| | - Ying-Shiuan Chen
- Center for Epigenetics and Disease Prevention, Texas A&M University Health Science Center, Institute of Biosciences and Technology, Houston, Texas
| | - Wan-Mohaiza Dashwood
- Center for Epigenetics and Disease Prevention, Texas A&M University Health Science Center, Institute of Biosciences and Technology, Houston, Texas
| | - Qingjie Li
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas
| | - Christiane V Löhr
- College of Veterinary Medicine, Oregon State University, Corvallis, Oregon
| | - Kay Fischer
- College of Veterinary Medicine, Oregon State University, Corvallis, Oregon
| | - Emily Ho
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon.,School of Biological and Population Health Sciences, Oregon State University, Corvallis, Oregon
| | - David E Williams
- Linus Pauling Institute, Oregon State University, Corvallis, Oregon.,Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon
| | - Roderick H Dashwood
- Center for Epigenetics and Disease Prevention, Texas A&M University Health Science Center, Institute of Biosciences and Technology, Houston, Texas.,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas.,Department of Molecular and Cellular Medicine, Texas A&M College of Medicine, College Station, Texas.,Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, Texas
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14
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Zhang C, Qin S, Qin L, Liu L, Sun W, Li X, Li N, Wu R, Wang X. Cigarette smoke extract-induced p120-mediated NF-κB activation in human epithelial cells is dependent on the RhoA/ROCK pathway. Sci Rep 2016; 6:23131. [PMID: 27586697 PMCID: PMC5009380 DOI: 10.1038/srep23131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 02/25/2016] [Indexed: 12/21/2022] Open
Abstract
Cigarette smoke exposure is a major cause of chronic obstructive pulmonary disease (COPD), but the underlying molecular inflammatory mechanisms remain poorly understood. Previous studies have found that smoke disrupts cell-cell adhesion by inducing epithelial barrier damage to the adherens junction proteins, primarily E-cadherin (E-cad) and p120-catenin (p120). Recently, the anti-inflammatory role of p120 has drawn increasing attention. In this study, we demonstrate that p120 has a role in the cigarette smoke extract-induced inflammatory response, presumably by regulating NF-κB signaling activation. Mechanistically, we show that p120-mediated NF-κB signaling activation in airway epithelial inflammation is partially RhoA dependent and is independent of E-cad. These results provide novel evidence for the role of p120 in the anti-inflammatory response.
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Affiliation(s)
- Chao Zhang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shenghui Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lingzhi Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Liwei Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wenjia Sun
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiyu Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Naping Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Renliang Wu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xi Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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15
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Qin S, Qin L, Zhang C, Liu L, Sun W, Li N, Wu R, Wang X. p120-Catenin modulating nuclear factor-κB activation is partially RhoA/ROCKdependent in scratch injury. Wound Repair Regen 2016; 23:231-40. [PMID: 25693631 DOI: 10.1111/wrr.12270] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 02/12/2015] [Indexed: 12/01/2022]
Abstract
p120-catenin (p120) is known as a cadherin-associated protein that participates in tumor metastasis and invasion, as well as an anti-inflammatory mediator. Recently, its anti-inflammatory role is drawing increasing attention, but the regulatory mechanisms are still unknown. Here, we report that p120 modulated inflammatory responses partially depends on RhoA/ROCK pathway in scratch-induced injury in human bronchial epithelial cells (BECs). For the first time, we found that p120 was significantly reduced in BECs after scratching, which could induce interleukin-8 (IL-8) production through nuclear factor-κB (NF-κB) activation accompanied with IκBα phosphorylation. Over-expression of p120 3A could inhibit NF-κB activation and IL-8 mRNA expression and protein synthesis after scratching, while p120 knockdown by small interfering RNA could promote NF-κB activation and IL-8 mRNA expression and protein synthesis after scratching. Furthermore, we found that RhoA was the binding partner of p120 in BECs. Although total RhoA and p120-binded RhoA remained unchanged, the RhoA activity was increased after scratching. Chemical blockade of RhoA/ROCK signaling (Y27632) inhibited scratch-induced nuclear translocation of NF-κB p65. Over-expression of p120 3A attenuated scratch-induced RhoA activation, whereas silence of p120 significantly elevated scratch-induced RhoA activation in BCEs. Conclusively, these results indicate an anti-inflammatory effect of p120 in bronchial epithelial cells through its modulation of NF-κB signaling depending on RhoA/ROCK pathway.
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Affiliation(s)
- Shenghui Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Lingzhi Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Chao Zhang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Liwei Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Wenjia Sun
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Naping Li
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Renliang Wu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
| | - Xi Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei, People's Republic of China
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16
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Hong JY, Oh IH, McCrea PD. Phosphorylation and isoform use in p120-catenin during development and tumorigenesis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1863:102-14. [PMID: 26477567 DOI: 10.1016/j.bbamcr.2015.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2015] [Revised: 10/12/2015] [Accepted: 10/13/2015] [Indexed: 12/12/2022]
Abstract
P120-catenin is essential to vertebrate development, modulating cadherin and small-GTPase functions, and growing evidence points also to roles in the nucleus. A complexity in addressing p120-catenin's functions is its many isoforms, including optional splicing events, alternative points of translational initiation, and secondary modifications. In this review, we focus upon how choices in the initiation of protein translation, or the earlier splicing of the RNA transcript, relates to primary sequences that harbor established or putative regulatory phosphorylation sites. While certain p120 phosphorylation events arise via known kinases/phosphatases and have defined outcomes, in most cases the functional consequences are still to be established. In this review, we provide examples of p120-isoforms as they relate to phosphorylation events, and thereby to isoform dependent protein-protein associations and downstream functions. We also provide a view of upstream pathways that determine p120's phosphorylation state, and that have an impact upon development and disease. Because other members of the p120 subfamily undergo similar processing and phosphorylation, as well as related catenins of the plakophilin subfamily, what is learned regarding p120 will by extension have wide relevance in vertebrates.
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Affiliation(s)
- Ji Yeon Hong
- Division of Cardiology, Department of Medicine, Severance Biomedical Science Institute, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
| | - Il-Hoan Oh
- The Catholic University of Korea, Catholic High Performance Cell Therapy Center, 505 Banpo-dong, Seocho-Ku, Seoul 137-701, Republic of Korea
| | - Pierre D McCrea
- Department of Genetics, University of Texas MD Anderson Cancer Center, University of Texas Graduate School of Biomedical Science, Houston, TX 77030, USA.
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17
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Li TF, Qin SH, Ruan XZ, Wang X. p120-catenin participates in the progress of gastric cancer through regulating the Rac1 and Pak1 signaling pathway. Oncol Rep 2015; 34:2357-64. [PMID: 26324182 DOI: 10.3892/or.2015.4226] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 06/26/2015] [Indexed: 11/06/2022] Open
Abstract
p120-catenin (p120), an E-cadherin regulator, has been implicated as central to a series of genetic and epigenetic changes that ultimately lead to tumor progression and metastasis. Ras-related C3 botulinum toxin substrate 1 (Rac1)and p21-activated kinases (PAKs) are effectors of p120. In the present study, we examined the expression of p120, Rac1 and Pak1 using immunohistochemistry in human gastric cancer tissues. Then, we used the gastric cancer SGC7901 and AGS cell lines to explore the possible mechanism of p120, Rac1 and Pak1 in the progress of gastric cancer. Western blotting was used to detect the expression of p120, Rac1 and Pak1 in the two cell lines. Next, p120 was silenced using p120 siRNA or overexpression of p120 by transfection of the plasmid p120 1A into the two cell types, western blotting was used to investigate the expression changes of Rac1 and Pak1. Furthermore, the effects of p120 siRNA-mediated knockdown or overexpression on the proliferation and invasive ability of gastric cancer cells were investigated using wound healing test and Matrigel invasion assays. The results showed that p120 was downregulated in both poorly differentiated group and well differentiated human gastric cancer. However, Rac1 and Pak1 were upregulated in poorly differentiated tissues and remain low in well differentiated gastric cancer tissues. In the two gastric cancer cell lines, although the expression of Rac1 and Pak1 remained unchanged after the p120 knockdown, the expressions of Rac1 and Pak1 protein were decreased after p120 overexpression in both SGC7901 and AGS cells. Furthermore, knockdown of p120 promoted gastric cancer cell proliferation and invasion; overexpression of p120 reduced the proliferation and invasion of gastric cancer cells. In conclusion, based on our results, we speculate that p120 participates in the progress of gastric cancer through regulating Rac1 and Pak1, which provides a potential prevention and a promising therapeutical approach for the patients with gastric cancer.
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Affiliation(s)
- Tong-Fei Li
- Department of Pathology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Sheng-Hui Qin
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei 430030, P.R. China
| | - Xu-Zhi Ruan
- Department of Pathology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xi Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Key Laboratory of Pulmonary Disease of Ministry of Health of China, Wuhan, Hubei 430030, P.R. China
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18
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YU ZHAOJIN, SUN MINGLI, JIN FENG, XIAO QINGHUAN, HE MIAO, WU HUIZHE, REN JIE, ZHAO LIN, ZHAO HAISHAN, YAO WEIFAN, SHAN FENGPING, CAO YAMING, WEI MINJIE. Combined expression of ezrin and E-cadherin is associated with lymph node metastasis and poor prognosis in breast cancer. Oncol Rep 2015; 34:165-74. [DOI: 10.3892/or.2015.3967] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/20/2015] [Indexed: 11/06/2022] Open
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19
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Kafka A, Tomas D, Beroš V, Pećina HI, Zeljko M, Pećina-Šlaus N. Brain metastases from lung cancer show increased expression of DVL1, DVL3 and beta-catenin and down-regulation of E-cadherin. Int J Mol Sci 2014; 15:10635-51. [PMID: 24933634 PMCID: PMC4100173 DOI: 10.3390/ijms150610635] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/14/2014] [Accepted: 05/27/2014] [Indexed: 12/21/2022] Open
Abstract
The susceptibility of brain to secondary formation from lung cancer primaries is a well-known phenomenon. In contrast, the molecular basis for invasion and metastasis to the brain is largely unknown. In the present study, 31 brain metastases that originated from primary lung carcinomas were analyzed regarding over expression of Dishevelled-1 (DVL1), Dishevelled-3 (DVL3), E-cadherin (CDH1) and beta-catenin (CTNNB1). Protein expressions and localizations were analyzed by immunohistochemistry. Genetic alterations of E-cadherin were tested by polymerase chain reaction (PCR)/loss of heterozygosity (LOH). Heteroduplex was used to investigate mutations in beta-catenin. DVL1 and DVL3 showed over expression in brain metastasis in 87.1% and 90.3% of samples respectively. Nuclear staining was observed in 54.8% of cases for DVL1 and 53.3% for DVL3. The main effector of the Wnt signaling, beta-catenin, was up-regulated in 56%, and transferred to the nucleus in 36% of metastases. When DVL1 and DVL3 were up-regulated the number of cases with nuclear beta-catenin significantly increased (p=0.0001). Down-regulation of E-cadherin was observed in 80% of samples. Genetic analysis showed 36% of samples with LOH of the CDH1. In comparison to other lung cancer pathologies, the diagnoses adenocarcinoma and small cell lung cancer (SCLC) were significantly associated to CDH1 LOH (p=0.001). Microsatellite instability was detected in one metastasis from adenocarcinoma. Exon 3 of beta-catenin was not targeted. Altered expression of Dishevelled-1, Dishevelled-3, E-cadherin and beta-catenin were present in brain metastases which indicates that Wnt signaling is important and may contribute to better understanding of genetic profile conditioning lung cancer metastasis to the brain.
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Affiliation(s)
- Anja Kafka
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
| | - Davor Tomas
- Ljudevit Jurak Department of Pathology, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Vili Beroš
- Department of Neurosurgery, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Hrvoje Ivan Pećina
- Department of Radiology, University Hospital "Sisters of Charity", 10000 Zagreb, Croatia.
| | - Martina Zeljko
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
| | - Nives Pećina-Šlaus
- Laboratory of Neuro-Oncology, Croatian Institute for Brain Research, School of Medicine, University of Zagreb, Salata 12, 10000 Zagreb, Croatia.
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