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Zhao W, Li Y, Cheng H, Wang M, Zhang Z, Cai M, Zhao C, Xi X, Zhao X, Zhao W, Yang Y, Shao R. Myofibrillogenesis Regulator-1 Regulates the Ubiquitin Lysosomal Pathway of Notch3 Intracellular Domain Through E3 Ubiquitin-Protein Ligase Itchy Homolog in the Metastasis of Non-Small Cell Lung Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306472. [PMID: 38342606 PMCID: PMC11022719 DOI: 10.1002/advs.202306472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/28/2023] [Indexed: 02/13/2024]
Abstract
Myofibrillogenesis regulator-1 (MR-1) is a multifunctional protein involved in the development of various human tumors. The study is the first to report the promoting effect of MR-1 on the development and metastasis of non-small cell lung cancer (NSCLC). MR-1 is upregulated in NSCLC and positively associated with poor prognosis. The overexpression of MR-1 promotes the metastasis of NSCLC cells by stabilizing the expression of Notch3-ICD (NICD3) in the cytoplasm through enrichment analysis, in vitro and in vivo experimental researches. And Notch3 signaling can upregulate many genes related to metastasis. The stabilizing effect of MR-1 on NICD3 is achieved through the mono-ubiquitin lysosomal pathway and the specific E3 ubiquitin ligase is Itchy homolog (ITCH). There is a certain interaction between MR-1 and NICD3. Elevated MR-1 can affect the level of ITCH phosphorylation, reduce its E3 enzyme activity, and thus lead to reduce the ubiquitination and degradation of NICD3. Interference with the interaction between MR-1 and NICD3 can increase the degradation of NICD3 and impair the metastatic ability of NSCLC cells, which is a previously overlooked treatment option in NSCLC. In summary, interference with the interaction between MR-1 and NICD3 in the progression of lung cancer may be a promising therapeutic target.
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Affiliation(s)
- Wenxia Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Yang Li
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Hanzeng Cheng
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia MedicaPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100050P. R. China
| | - Mengyan Wang
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
- Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong510280P. R. China
| | - Zhishuo Zhang
- Department of EmergencyXinhua HospitalShanghai Jiaotong University School of MedicineShanghai200092P. R. China
- Department of Organ Transplantation and Hepatobiliary SurgeryThe First Hospital of China Medical UniversityShenyangLiaoning110001P. R. China
| | - Meilian Cai
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Cong Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Xiaoming Xi
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Xiaojun Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Wuli Zhao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
| | - Yajun Yang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia MedicaPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100050P. R. China
| | - Rongguang Shao
- NHC Key Laboratory of Antibiotic Bioengineering, Laboratory of OncologyInstitute of Medicinal Biotechnology Chinese Academy of Medical Sciences & Peking Union Medical College Beijing100050BeijingP. R. China
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2
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Zhang H, Yan T, Zhong A, Guo L, Lu R. COPS5 Conferred the Platinum Resistance in Epithelial Ovarian Cancer. Curr Issues Mol Biol 2022; 44:3948-3958. [PMID: 36135183 PMCID: PMC9498275 DOI: 10.3390/cimb44090271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/23/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Development of platinum resistance is one of the major causes of epithelial ovarian cancer (EOC) treatment failure. COP9 signalosome subunit 5 (COPS5) was found to take part in the progression of EOC in our previous study. Herein, we aim to uncover the potential utility of COPS5 in EOC chemoresistance. COPS5 levels were analyzed to define clinic pathologic correlates using a matched tissue microarray and online datasets. The effect of COPS5 inhibition by the lentivirus-mediated short hairpin RNA on cell viability, proliferation and migration was accessed in vitro and in vivo. Results showed that COPS5 was upregulated in patients after platinum resistance. Kaplan–Meier survival curves revealed that COPS5 overexpression was correlated with shorter PFS and OS. COPS5 downregulation inhibited the cell proliferation, migration, and reduced the sensitivity of EOC to platinum. Overall, our data indicated that COPS5 inhibition might represent a new therapeutic strategy for overcoming platinum resistance in patients with EOC.
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Affiliation(s)
- Hongqin Zhang
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, No. 270, Dong’An Road, Xuhui District, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Tianqing Yan
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, No. 270, Dong’An Road, Xuhui District, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
- Qingdao Institute, Fudan University, 699 Jingshatan Road, Qingdao 266500, China
| | - Ailing Zhong
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, No. 270, Dong’An Road, Xuhui District, Shanghai 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Lin Guo
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, No. 270, Dong’An Road, Xuhui District, Shanghai 200032, China
| | - Renquan Lu
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, No. 270, Dong’An Road, Xuhui District, Shanghai 200032, China
- Correspondence:
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El-Sisi MG, Radwan SM, Saeed AM, El-Mesallamy HO. Serum levels of FAK and some of its effectors in adult AML: correlation with prognostic factors and survival. Mol Cell Biochem 2021; 476:1949-1963. [PMID: 33507464 DOI: 10.1007/s11010-020-04030-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022]
Abstract
Focal adhesion kinase (FAK), human myofibrillogenesis regulator-1 (MR-1), ephrin receptor type A4 (EphA4), proto-oncogene tyrosine kinase Src (Src), and protein kinase C (PKC) are important markers in proliferation, survival, and migration in some cancers. However, the significance of each is still unclear in different malignancies, including acute myeloid leukemia (AML). Therefore, this study was conducted to investigate their serum levels in Egyptian adult de novo AML patients (n = 70) against healthy volunteers (n = 20). We managed to study the correlation between each pair and to investigate their association with diagnosis, prognosis, and survival. Serum levels were analyzed using enzyme-linked immunosorbent assay (ELISA). We found that FAK, MR-1, Src, and PKC serum levels were significantly higher in AML patients compared to control (p < 0.0001), and this was associated with significantly lower EphA4 level (p < 0.0001). Interestingly, we also observed a significant negative correlation of FAK (p = 0.027), MR-1 (p = 0.003), Src (p = 0.038), and PKC (p = 0.03) with patients' overall survival (OS) while there was a positive significant correlation between EphA4 and OS (p = 0.007). In conclusion, this study suggests that FAK, MR-1, EphA4, Src, and PKC may be used as early diagnostic and prognostic markers with high sensitivity and specificity in AML patients and thus may be incorporated into the patients' early diagnostic and prognostic panels.
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Affiliation(s)
- Mona G El-Sisi
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sara M Radwan
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Alia M Saeed
- Department of Internal Medicine, Clinical Hematology and Oncology Division, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hala O El-Mesallamy
- Biochemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt. .,Faculty of Pharmacy, Sinai University, Sinai, Egypt.
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Chen M, Zhang H, Zhang G, Zhong A, Ma Q, Kai J, Tong Y, Xie S, Wang Y, Zheng H, Guo L, Lu R. Targeting TPX2 suppresses proliferation and promotes apoptosis via repression of the PI3k/AKT/P21 signaling pathway and activation of p53 pathway in breast cancer. Biochem Biophys Res Commun 2018; 507:74-82. [PMID: 30454896 DOI: 10.1016/j.bbrc.2018.10.164] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022]
Abstract
Targeting protein for Xenopus kinesin-like protein 2 (TPX2) is a microtubule-associated protein required for mitosis and spindle assembly. Previous studies showed that TPX2 is overexpressed in various human cancers and promotes cancer progression. In this study, the differentially expressed genes including TPX2 were screened in GEO database for gene expression microarray of breast cancer. The TPX2 expression level was significantly increased in breast cancer cells and the breast malignant tissues compared with those controls. In vitro experiment further confirmed that knockdown of TPX2 by small hairpin RNA inhibited breast cancer cell proliferatio, migration, and induced cell apoptosis. TPX2 silencing decreased the expression of PI3K and extent of AKT phosphorylation, as well as increased expression of p53 and p21. Taken together, our findings indicate that TPX2 silencing negatively regulates the PI3K/AKT and activates p53 signaling pathway by which breast cancer cells proliferation were inhibited whereas cellulars apoptosis were accelerated, suggesting that TPX2 may be a potential target for anticancer therapy in breast cancer.
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Affiliation(s)
- Miaomiao Chen
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hongqin Zhang
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guihong Zhang
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ailing Zhong
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qian Ma
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jinyan Kai
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yin Tong
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Suhong Xie
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Yanchun Wang
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Hui Zheng
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Lin Guo
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Renquan Lu
- Department of Clinical Laboratory, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
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Wang J, Zhao W, Liu H, He H, Shao R. Myofibrillogenesis regulator 1 (MR-1): a potential therapeutic target for cancer and PNKD. J Drug Target 2017; 26:643-648. [PMID: 29103325 DOI: 10.1080/1061186x.2017.1401077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Human myofibrillogenesis regulator 1 (MR-1) is a functional gene also known as paroxysmal nonkinesigenic dyskinesia (PNKD). It is localised on human chromosome 2q35 and three different isomers, MR-1L, MR-1M and MR-1S, are formed by alternative splicing. MR-1S promotes cardiac hypertrophy and is closely related to cancer. MR-1S is overexpressed in haematologic and solid malignancies, such as hepatoma, breast cancer and chronic myelogenous leukaemia. MR-1S causes disordered cell differentiation, initiates malignant transformation and accelerates metastasis. MR-1S directly phosphorylates and activates the MEK-ERK-RSK pathway to accelerate cancer growth and facilitates metastasis by activating the MLC2-FAK-AKT pathway. Silencing MR-1 inhibits cancer cell proliferation and metastasis. MR-1S causes disordered cell differentiation, initiates malignant transformation and accelerates metastasis. MR-1 interacts with eukaryotic translation initiation factors and MRIP-1, which contains Ras GTPase, PH and zinc-containing ArfGap domains, as well as three ankyrin repeats. Mutations in the N-terminal region of MR-1L and MR-1S are the main causes of PNKD (a hereditary disease characterised by paroxysmal dystonic choreoathetosis) and targeting the mutated protein could provide symptomatic relief. These findings provide compelling evidence that MR-1 might be a diagnostic marker and therapeutic target for solid tumours, myelogenous leukaemia and PNKD.
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Affiliation(s)
- Junxia Wang
- a Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology , Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , PR China
| | - Wuli Zhao
- a Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology , Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , PR China
| | - Hong Liu
- a Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology , Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , PR China
| | - Hongwei He
- a Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology , Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , PR China
| | - Rongguang Shao
- a Key Laboratory of Antibiotic Bioengineering, Ministry of Health, Laboratory of Oncology , Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences , Beijing , PR China
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COPS5 amplification and overexpression confers tamoxifen-resistance in ERα-positive breast cancer by degradation of NCoR. Nat Commun 2016; 7:12044. [PMID: 27375289 PMCID: PMC4932188 DOI: 10.1038/ncomms12044] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 05/24/2016] [Indexed: 12/22/2022] Open
Abstract
Oestrogen receptor α (ERα) antagonists are used in endocrine therapies for ERα-positive (ERα+) breast cancer patients. Unfortunately the clinical benefit is limited due to intrinsic and acquired drug resistance. Here using integrated genomic and functional studies, we report that amplification and/or overexpression of COPS5 (CSN5/JAB1) confers resistance to tamoxifen. Amplification and overexpression of COPS5, a catalytic subunit of the COP9 complex, is present in about 9% of the ERα+ primary breast cancer and more frequently (86.7%, 26/30) in tamoxifen-refractory tumours. Overexpression of COPS5, through its isopeptidase activity, leads to ubiquitination and proteasome-mediated degradation of NCoR, a key corepressor for ERα and tamoxifen-mediated suppression of ERα target genes. Importantly, COPS5 overexpression causes tamoxifen-resistance in preclinical breast cancer models in vitro and in vivo. We also demonstrate that genetic inhibition of the isopeptidase activity of COPS5 is sufficient to re-sensitize the resistant breast cancer cells to tamoxifen-treatment, offering a potential therapeutic approach for endocrine-resistant breast cancer patients. The corepressor NCoR is required for tamoxifen-mediated ERα-dependent transcriptional repression. Here, the authors show that COPS5 confers tamoxifen-resistance through the degradation of NCOR, the recruitment of the co-activator PCAF to ERα binding sites and the subsequent ERα transcriptional activity.
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7
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The Chemical Biology of Human Metallo-β-Lactamase Fold Proteins. Trends Biochem Sci 2016; 41:338-355. [PMID: 26805042 PMCID: PMC4819959 DOI: 10.1016/j.tibs.2015.12.007] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 12/19/2015] [Accepted: 12/22/2015] [Indexed: 01/30/2023]
Abstract
The αββα metallo β-lactamase (MBL) fold (MBLf) was first observed in bacterial enzymes that catalyze the hydrolysis of almost all β-lactam antibiotics, but is now known to be widely distributed. The MBL core protein fold is present in human enzymes with diverse biological roles, including cell detoxification pathways and enabling resistance to clinically important anticancer medicines. Human (h)MBLf enzymes can bind metals, including zinc and iron ions, and catalyze a range of chemically interesting reactions, including both redox (e.g., ETHE1) and hydrolytic processes (e.g., Glyoxalase II, SNM1 nucleases, and CPSF73). With a view to promoting basic research on MBLf enzymes and their medicinal targeting, here we summarize current knowledge of the mechanisms and roles of these important molecules. MBLs are mono- or di-zinc ion-dependent hydrolases that enable bacterial resistance to almost all β-lactam antibiotics. The αββα MBL core fold is widely distributed and supports a range of catalytic activities, including redox reactions. hMBL proteins are a small family of approximately 18 zinc- and iron-dependent proteins with roles in metabolism and/or detoxification and nucleic acid modification. In a notable parallel with the role of bacterial MBLs in antibiotic resistance, some hMBLf enzymes enable resistance to chemotherapy drugs, such as cisplatin and mitomycin C.
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Wang C, Xiang H, Si H, Guo D, Sun M. High expression of myofibrillogenesis regulator-1 predicts poor prognosis for patients with hepatocellular carcinoma after curative hepatectomy. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:14818-14823. [PMID: 26823810 PMCID: PMC4713596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/22/2015] [Indexed: 06/05/2023]
Abstract
Myofibrillogenesis regulator (MR-1) is overexpressed in human cancer cells and plays an essential role in cancer cell growth. However, its role in hepatocellular carcinoma (HCC) has not yet been explored. The aim of this study was to investigate the association of MR-1 expression with clinicopathologic features and prognosis in patients with HCC. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) was used to detect MR-1 mRNA levels in tissues samples from 120 HCC patients. Results showed that MR-1 expression was significantly higher in HCC tissues when compared with matched adjacent normal tissues (P=0.004). In HCC cancerous tissues, it was also significantly associated with tumor size (P=0.024) and serum AFP level (P=0.003). Moreover, Kaplan-Meier analysis showed that HCC patients with high MR-1 expression had shorter overall survival time than those with low MR-1 expression (P=0.009). When analyzed with a multivariate Cox regression model, MR-1 was identified as an independent prognostic factor for overall survival. Furthermore, when combined with serum AFP level, the median survival time significantly differed between patients with baseline high serum AFP and high MR-1 expression levels and those with normal AFP and low MR-1 levels (P=0.007). Taken together, our results suggest that high expression of MR-1 is involved in HCC progression and could be a novel biomarker of poor prognosis in patients with HCC.
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Affiliation(s)
- Chunwei Wang
- Department of Surgery and Infections Diseases, Chinese PLA Air Force General Hospital Beijing 100142, China
| | - Hua Xiang
- Department of Surgery and Infections Diseases, Chinese PLA Air Force General Hospital Beijing 100142, China
| | - Huiyuan Si
- Department of Surgery and Infections Diseases, Chinese PLA Air Force General Hospital Beijing 100142, China
| | - Dandan Guo
- Department of Surgery and Infections Diseases, Chinese PLA Air Force General Hospital Beijing 100142, China
| | - Mei Sun
- Department of Surgery and Infections Diseases, Chinese PLA Air Force General Hospital Beijing 100142, China
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9
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Kuruvilla KP, LeDoux MS. Mouse Models of PNKD. Mov Disord 2015. [DOI: 10.1016/b978-0-12-405195-9.00049-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Gong Y, He H, Liu H, Zhang C, Zhao W, Shao RG. Phosphorylation of myofibrillogenesis regulator-1 activates the MAPK signaling pathway and induces proliferation and migration in human breast cancer MCF7 cells. FEBS Lett 2014; 588:2903-10. [PMID: 25066297 DOI: 10.1016/j.febslet.2014.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 07/05/2014] [Accepted: 07/15/2014] [Indexed: 12/24/2022]
Abstract
Myofibrillogenesis regulator-1 (MR-1) has been characterized as a tumor promoter in many cancers. However, its mechanism of action has not been fully elucidated. Here, we report that MR-1 is overexpressed in human breast cancer cells and participates in tumor promotion in human breast cancer MCF7 cells by activating the ERK1/2 signaling pathway. MR-1 interacts with MEK1/2 and ERK1, and its N-terminal sequence plays a major role in promoting the MEK/ERK cascade. Furthermore, six phosphorylation sites of MR-1 were identified, and phosphorylation at S46 was shown to be critical for the activation of MEK/ERK. Therefore, our findings suggest that MR-1 functions as a tumor promoter in MCF7 cells by activating the MEK/ERK signaling.
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Affiliation(s)
- Yuyan Gong
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China
| | - Hongwei He
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China
| | - Hong Liu
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China
| | - Caixia Zhang
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China
| | - Wuli Zhao
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China
| | - Rong-Guang Shao
- Institute of Medicinal Biotechnology, Peking Union Medical College and Chinese Academy of Medical Sciences, 1 Tiantan Xili, Beijing 100050, China.
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11
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Lu R, Jiang M, Chen Z, Xu X, Hu H, Zhao X, Gao X, Guo L. Lactate dehydrogenase 5 expression in Non-Hodgkin lymphoma is associated with the induced hypoxia regulated protein and poor prognosis. PLoS One 2013; 8:e74853. [PMID: 24086384 PMCID: PMC3781153 DOI: 10.1371/journal.pone.0074853] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Accepted: 08/06/2013] [Indexed: 12/31/2022] Open
Abstract
Lactate dehydrogenase 5 (LDH-5) is one of the major isoenzymes catalyzing the biochemical process of pyruvate to lactate. The purpose of this study was to investigate the expression of serum LDH-5 and test whether this enzyme is regulated by tumor hypoxia and represents a prognostic marker in patients with Non-Hodgkin’s lymphoma (NHL). In this study, LDH-5 levels were detected using agarose gel electrophoresis in NHL patients (n = 266) and non-NHL controls including benign lymphadenectasis (n = 30) and healthy cohorts (n = 233). We also explored the expression of LDH-5 and hypoxia-inducible factor (HIF) 1α in NHL and benign controls by immunohistochemistry and immunofluorescence staining, respectively. Moreover, the role of LDH-5 in the progression of NHL was assessed by multivariate Cox analyses and Kaplan-Meier survival estimates. Serum concentrations of LDH-5 were significantly higher in NHL patients (9.3%) than in benign patients and healthy controls (7.5% and 7.2%, respectively, P<0.01). Application of LDH-5 detection increased the sensitivity of NHL detection, identifying 53.4% of NHL patients as positive, compared with the measurement of total LDH levels (36.5% sensitivity). LDH-5 concentrations increased with clinical stage, extra-nodal site involvement, and WHO performance status of patients with NHL. Exposure to a hypoxic environment induced the expression of LDH-5 and its overexpression correlated with HIF1α cytoplasmic accumulation in NHL cells. In multivariate analyses, LDH-5 was an independent marker for progression-free survival in patients with NHL (P<0.001). Overall, the expression of LDH-5 was elevated in NHL, showing an association with tumor hypoxia and unfavorable prognosis. Thus, LDH-5 emerges as a promising prognostic predictor for NHL patients.
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Affiliation(s)
- Renquan Lu
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Minglei Jiang
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Zhujun Chen
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Xiaofeng Xu
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Hongfeng Hu
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Xinmin Zhao
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Medical Oncology, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Xiang Gao
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lin Guo
- Department of Clinical Laboratory, Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- * E-mail:
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12
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Myofibrillogenesis regulator-1 promotes cell adhesion and migration in human hepatoma cells. CHINESE SCIENCE BULLETIN-CHINESE 2013. [DOI: 10.1007/s11434-013-5933-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Zhao CY, Guo ZJ, Dai SM, Zhang Y, Zhou JJ. Clinicopathological and prognostic significance of myofibrillogenesis regulator-1 protein expression in pancreatic ductal adenocarcinoma. Tumour Biol 2013; 34:2983-7. [PMID: 23696030 DOI: 10.1007/s13277-013-0862-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 05/10/2013] [Indexed: 01/16/2023] Open
Abstract
Myofibrillogenesis regulator-1 (MR-1) expression was detected in different malignancies and is associated with poor prognosis. However, its role in pancreatic ductal adenocarcinoma (PDAC) has not been fully elucidated. Thus, the aim of this study was to investigate the association of MR-1 expression with clinicopathologic features and prognosis in patients with PDAC. Immunohistochemistry was performed to investigate the protein expression of MR-1 and epithelial (E)-cadherin in 87 patients with PDAC. Results showed that MR-1 expression was correlated with histologic grade, tumor stage, and lymph node metastasis (all P <0.05). In addition, MR-1 expression showed a significant inverse correlation with E-cadherin expression (P = 0.002). Furthermore, the variables associated with prognosis were analyzed by Cox's proportional hazards model. Kaplan-Meier analysis was used to plot survival curves according to different expression levels of MR-1. Kaplan-Meier analysis revealed that MR-1 expression was significantly associated with worse disease-free survival (DFS) and overall survival (OS) rates in patients with PDAC (both P <0.001). Finally, multivariate analysis demonstrated that MR-1 expression, together with histologic grade, tumor stage, lymph node metastasis, was an independent prognostic factor for both DFS and OS rates in patients with PDAC. MR-1 overexpression was tightly associated with more aggressive tumor behavior and a poor prognosis, indicating that MR-1 is a valuable molecular biomarker for PDAC progression.
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Affiliation(s)
- Chang-Yong Zhao
- Department of General Surgery, Wuxi No. 4 People's Hospital, Wuxi Hospital of Oncology, No. 200, Huihe Road, Wuxi, 214062, China,
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MR-1 blocks the megakaryocytic differentiation and transition of CML from chronic phase to blast crisis through MEK dephosphorylation. Blood Cancer J 2013; 3:e107. [PMID: 23542180 PMCID: PMC3615218 DOI: 10.1038/bcj.2013.5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Chronic myelogenous leukemia (CML) evolves from a chronic phase characterized by the Philadelphia chromosome as the sole genetic abnormality and the accumulation of mature cells in peripheral blood into blast crisis, which is characterized by the rapid expansion of myeloid- or lymphoid-differentiation-arrested blast cells. Although ample studies have been conducted on the disease progress mechanisms, the underlying molecular mechanisms of the malignant phenotype transition are still unclear. In this study, we have shown that myofibrillogenesis regulator-1 (MR-1) was overexpressed in blast crisis patients and leukemic cells, but there was little trace expressed in healthy individuals and in most patients in CML chronic phase. MR-1 could inhibit the differentiation of myeloid cells into megakaryocytic lineages and accelerate cell proliferation. The molecular mechanism responsible for these effects was the interaction of MR-1 with MEK, which blocked the MEK/ERK signaling pathway by dephosphorylating MEK. Our results provide compelling and important evidence that MR-1 might act as a diagnostic marker and potential target of CML progression from chronic phase to blast crisis.
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Lu R, Wu C, Guo L, Liu Y, Mo W, Wang H, Ding J, Wong ET, Yu M. The role of brevican in glioma: promoting tumor cell motility in vitro and in vivo. BMC Cancer 2012; 12:607. [PMID: 23253190 PMCID: PMC3575301 DOI: 10.1186/1471-2407-12-607] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 12/11/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Malignant glioma is a common primary tumor of the central nervous system. Brevican, an abundant extracellular matrix component in the adult brain, plays a critical role in the process of glioma. The mechanisms for the highly invasive behavior of gliomas are still poorly understood. The aim of this study was to examine whether brevican is a predictor of glioma and its roles in glioma cell motility. METHODS In this study, immunohistochemistry staining for brevican expression was performed in malignant gliomas and benign controls. We also explored the effects of brevican on cell adhesion and migration in brevican-overexpressed cells. Knockdown of brevican expression was achieved by stable transfection of U251 cells transduced with a construct encoding a short hairpin DNA directed against the brevican gene, which correspondingly, down-regulated the proliferation, invasion and spread of brevican-expressing cells. Moreover, the role of brevican in the growth and progression of glioma was demonstrated by in vivo studies. RESULTS Our results provide evidence for the molecular and cellular mechanisms that may underlie the motility-promoting role of brevican in the progression of glioma. The role of brevican as a target for immunotherapy might be taken into consideration in future studies. CONCLUSIONS This study suggests that expression of brevican is associated with glioma cell adhesion, motility and tumor growth, and also is related to glioma cell differentiation, therefore it may be a marker for malignance degree of glioma.
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Affiliation(s)
- Renquan Lu
- Department of Biochemistry and Molecular Biology and the Key Laboratory of Molecular Medicine, Ministry of Education, Shanghai 200032, China
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Li F, Tie R, Chang K, Wang F, Deng S, Lu W, Yu L, Chen M. Does risk for ovarian malignancy algorithm excel human epididymis protein 4 and CA125 in predicting epithelial ovarian cancer: a meta-analysis. BMC Cancer 2012; 12:258. [PMID: 22712526 PMCID: PMC3443004 DOI: 10.1186/1471-2407-12-258] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Accepted: 05/23/2012] [Indexed: 12/11/2022] Open
Abstract
BACKGROUNDS Risk for Ovarian Malignancy Algorithm (ROMA) and Human epididymis protein 4 (HE4) appear to be promising predictors for epithelial ovarian cancer (EOC), however, conflicting results exist in the diagnostic performance comparison among ROMA, HE4 and CA125. METHODS Remote databases (MEDLINE/PUBMED, EMBASE, Web of Science, Google Scholar, the Cochrane Library and ClinicalTrials.gov) and full texts bibliography were searched for relevant abstracts. All studies included were closely assessed with the QUADAS-2 (Quality Assessment of Diagnostic Accuracy Studies-2). EOC predictive value of ROMA was systematically evaluated, and comparison among the predictive performances of ROMA, HE4 and CA125 were conducted within the same population. Sensitivity, specificity, DOR (diagnostic odds ratio), LR ± (positive and negative likelihood ratio) and AUC (area under receiver operating characteristic-curve) were summarized with a bivariate model. Subgroup analysis and sensitivity analysis were used to explore the heterogeneity. RESULTS Data of 7792 tests were retrieved from 11 studies. The overall estimates of ROMA for EOC predicting were: sensitivity (0.89, 95% CI 0.84-0.93), specificity (0.83, 95% CI 0.77-0.88), and AUC (0.93, 95% CI 0.90-0.95). Comparison of EOC predictive value between HE4 and CA125 found, specificity: HE4 (0.93, 95% CI 0.87-0.96) > CA125 (0.84, 95% CI 0.76-0.90); AUC: CA125 (0.88, 95% CI 0.85-0.91) > HE4 (0.82, 95% CI 0.78-0.85). Comparison of OC predictive value between HE4 and CA125 found, AUC: CA125 (0.89, 95% CI 0.85-0.91) > HE4 (0.79, 95% CI 0.76-0.83). Comparison among the three tests for EOC prediction found, sensitivity: ROMA (0.86, 95%CI 0.81-0.91) > HE4 (0.80, 95% CI 0.73-0.85); specificity: HE4 (0.94, 95% CI 0.90-0.96) > ROMA (0.84, 95% CI 0.79-0.88) > CA125 (0.78, 95%CI 0.73-0.83). CONCLUSIONS ROMA is helpful for distinguishing epithelial ovarian cancer from benign pelvic mass. HE4 is not better than CA125 either for EOC or OC prediction. ROMA is promising predictors of epithelial ovarian cancer to replace CA125, but its utilization requires further exploration.
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Affiliation(s)
- Fake Li
- Department of Clinical Laboratory, Institute of Surgery Research, Daping Hospital, Third Military Medical University, ChongQing, Peoples Republic of China
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Lu R, Sun X, Xiao R, Zhou L, Gao X, Guo L. Human epididymis protein 4 (HE4) plays a key role in ovarian cancer cell adhesion and motility. Biochem Biophys Res Commun 2012; 419:274-80. [PMID: 22342977 DOI: 10.1016/j.bbrc.2012.02.008] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Accepted: 02/02/2012] [Indexed: 01/16/2023]
Abstract
Human epididymis protein 4 (HE4) is a novel and specific biomarker for epithelial ovarian cancer (EOC). We previously demonstrated that serum HE4 levels were significantly elevated in the majority of EOC patients but not in subjects with benign disease or healthy controls. However, the precise mechanism of HE4 protein function is unknown. In this study, we generated HE4-overexpressing SKOV3 cells and found that stably transduced cells promoted cell adhesion and migration. Knockdown of HE4 expression was achieved by stable transfection of SKOV3 cells with a construct encoding a short hairpin DNA directed against the HE4 gene. Correspondingly, the proliferation and spreading ability of HE4-expressed cells were inhibited by HE4 suppression. Mechanistically, impaired EGFR and Erk1/2 phosphorylation were observed in cells with HE4 knockdown. The phosphorylation was restored when the knockdown cells were cultured in conditioned medium containing HE4. Moreover, in vivo tumorigenicity showed that HE4 suppression markedly inhibited the growth of tumors. This suggests that expression of HE4 is associated with cancer cell adhesion, migration and tumor growth, which can be related to its effects on the EGFR-MAPK signaling pathway. Our results provide evidence of the cellular and molecular mechanisms that may underlie the motility-promoting role of HE4 in EOC progression. The role of HE4 as a target for gene-based therapy might be considered in future studies.
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Affiliation(s)
- Renquan Lu
- Department of Clinical Laboratory, Fudan University, Shanghai Cancer Center, Shanghai 200032, China
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