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Tong L, Ye K, Chen Q, Wang X, Hu C, Xu Q, Zhou L, Zhan R, Tong Y. Proteomics shows that brain metastases of lung adenocarcinoma overexpress ribosomal proteins in response to gamma knife radiosurgery. Sci Rep 2024; 14:15646. [PMID: 38977703 PMCID: PMC11231244 DOI: 10.1038/s41598-024-58967-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 04/05/2024] [Indexed: 07/10/2024] Open
Abstract
Gamma knife radiosurgery (GKRS) is recommended as the first-line treatment for brain metastases of lung adenocarcinoma (LUAD) in many guidelines, but its specific mechanism is unclear. We aimed to study the changes in the proteome of brain metastases of LUAD in response to the hyperacute phase of GKRS and further explore the mechanism of differentially expressed proteins (DEPs). Cancer tissues were collected from a clinical trial for neoadjuvant stereotactic radiosurgery before surgical resection of large brain metastases (ChiCTR2000038995). Five brain metastasis tissues of LUAD were collected within 24 h after GKRS. Five brain metastasis tissues without radiotherapy were collected as control samples. Proteomics analysis showed that 163 proteins were upregulated and 25 proteins were downregulated. GO and KEGG enrichment analyses showed that the DEPs were closely related to ribosomes. Fifty-three of 70 ribosomal proteins were significantly overexpressed, while none of them were underexpressed. The risk score constructed from 7 upregulated ribosomal proteins (RPL4, RPS19, RPS16, RPLP0, RPS2, RPS26 and RPS25) was an independent risk factor for the survival time of LUAD patients. Overexpression of ribosomal proteins may represent a desperate response to lethal radiotherapy. We propose that targeted inhibition of these ribosomal proteins may enhance the efficacy of GKRS.
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Affiliation(s)
- Luqing Tong
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Ke Ye
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Qun Chen
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Xiaoxi Wang
- Department of Pathology, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Chi Hu
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Qingsheng Xu
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Lihui Zhou
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Renya Zhan
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
| | - Ying Tong
- Department of Neurosurgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
- Gamma Knife Centre, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Street, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
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2
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Chen G, Gao X, Jia X, Wang Y, Xu L, Yu D, Chang S, Deng H, Hu K, Wang G, Li B, Xu Z, Lu Y, Wang H, Zhang T, Song D, Yang G, Wu X, Zhu H, Zhu W, Shi J. Ribosomal protein S3 mediates drug resistance of proteasome inhibitor: potential therapeutic application in multiple myeloma. Haematologica 2024; 109:1206-1219. [PMID: 37767568 PMCID: PMC10985453 DOI: 10.3324/haematol.2023.282789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Multiple myeloma (MM) remains incurable due to drug resistance. Ribosomal protein S3 (RPS3) has been identified as a non-Rel subunit of NF-κB. However, the detailed biological roles of RPS3 remain unclear. Here, we report for the first time that RPS3 is necessary for MM survival and drug resistance. RPS3 was highly expressed in MM, and knockout of RPS3 in MM inhibited cell growth and induced cell apoptosis both in vitro and in vivo. Overexpression of RPS3 mediated the proteasome inhibitor resistance of MM and shortened the survival of MM tumor-bearing animals. Moreover, our present study found an interaction between RPS3 and the thyroid hormone receptor interactor 13 (TRIP13), an oncogene related to MM tumorigenesis and drug resistance. We demonstrated that the phosphorylation of RPS3 was mediated by TRIP13 via PKCδ, which played an important role in activating the canonical NF-κB signaling and inducing cell survival and drug resistance in MM. Notably, the inhibition of NF-κB signaling by the small-molecule inhibitor targeting TRIP13, DCZ0415, was capable of triggering synergistic cytotoxicity when combined with bortezomib in drug-resistant MM. This study identifies RPS3 as a novel biomarker and therapeutic target in MM.
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Affiliation(s)
- Gege Chen
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Xuejie Gao
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Xinyan Jia
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Yingcong Wang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Li Xu
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Dandan Yu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Shuaikang Chang
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Hui Deng
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Ke Hu
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Guanli Wang
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120
| | - Bo Li
- CAS Key Laboratory of Receptor Research; State Key Laboratory of Drug Research; Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203
| | - Zhijian Xu
- CAS Key Laboratory of Receptor Research; State Key Laboratory of Drug Research; Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203
| | - Yumeng Lu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Huaping Wang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Ting Zhang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Dongliang Song
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Guang Yang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Xiaosong Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Huabin Zhu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072
| | - Weiliang Zhu
- CAS Key Laboratory of Receptor Research; State Key Laboratory of Drug Research; Drug Discovery and Design Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203.
| | - Jumei Shi
- Department of Hematology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120.
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3
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Sanz-Álvarez M, Luque M, Morales-Gallego M, Cristóbal I, Ramírez-Merino N, Rangel Y, Izarzugaza Y, Eroles P, Albanell J, Madoz-Gúrpide J, Rojo F. Generation and Characterization of Trastuzumab/Pertuzumab-Resistant HER2-Positive Breast Cancer Cell Lines. Int J Mol Sci 2023; 25:207. [PMID: 38203378 PMCID: PMC10779249 DOI: 10.3390/ijms25010207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
The combination of trastuzumab and pertuzumab as first-line therapy in patients with HER2-positive breast cancer has shown significant clinical benefits compared to trastuzumab alone. However, despite initial therapeutic success, most patients eventually progress, and tumors develop acquired resistance and invariably relapse. Therefore, there is an urgent need to improve our understanding of the mechanisms governing resistance in order to develop targeted therapeutic strategies with improved efficacy. We generated four novel HER2-positive cell lines via prolonged exposure to trastuzumab and pertuzumab and determined their resistance rates. Long-term resistance was confirmed by a significant increase in the colony-forming capacity of the derived cells. We authenticated the molecular identity of the new lines via both immunohistochemistry for the clinical phenotype and molecular profiling of point mutations. HER2 overexpression was confirmed in all resistant cell lines, and acquisition of resistance to trastuzumab and pertuzumab did not translate into differences in ER, PR, and HER2 receptor expression. In contrast, changes in the expression and activity of other HER family members, particularly HER4, were observed. In the same vein, analyses of the receptor and effector kinase status of different cellular pathways revealed that the MAPK pathway may be involved in the acquisition of resistance to trastuzumab and pertuzumab. Finally, proteomic analysis confirmed a significant change in the abundance patterns of more than 600 proteins with implications in key biological processes, such as ribosome formation, mitochondrial activity, and metabolism, which could be relevant mechanisms in the generation of resistance in HER2-positive breast cancer. We concluded that these resistant BCCLs may be a valuable tool to better understand the mechanisms of acquisition of resistance to trastuzumab and pertuzumab-based anti-HER2 therapy.
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Affiliation(s)
- Marta Sanz-Álvarez
- Department of Pathology, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain; (M.S.-Á.); (M.L.); (M.M.-G.)
| | - Melani Luque
- Department of Pathology, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain; (M.S.-Á.); (M.L.); (M.M.-G.)
| | - Miriam Morales-Gallego
- Department of Pathology, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain; (M.S.-Á.); (M.L.); (M.M.-G.)
| | - Ion Cristóbal
- Translational Oncology Division, OncoHealth Institute, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain;
| | | | - Yamileth Rangel
- Department of Pathology, Infanta Elena University Hospital, 28342 Madrid, Spain;
| | - Yann Izarzugaza
- Department of Medical Oncology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain;
| | - Pilar Eroles
- Institute of Health Research INCLIVA—CIBERONC, 46010 Valencia, Spain;
- Department of Physiology, University of Valencia, 46010 Valencia, Spain
| | - Joan Albanell
- Cancer Research Program, IMIM (Hospital del Mar Research Institute), 08003 Barcelona, Spain;
- Department of Medical Oncology, Hospital del Mar—CIBERONC, 08003 Barcelona, Spain
- Department of Experimental and Health Sciences, Faculty of Medicine, Universitat Pompeu Fabra, 08002 Barcelona, Spain
| | - Juan Madoz-Gúrpide
- Department of Pathology, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain; (M.S.-Á.); (M.L.); (M.M.-G.)
| | - Federico Rojo
- Department of Pathology, Fundación Jiménez Díaz University Hospital Health Research Institute (IIS—FJD, UAM)—CIBERONC, 28040 Madrid, Spain; (M.S.-Á.); (M.L.); (M.M.-G.)
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Jia W, Yuan J, Li S, Cheng B. The role of dysregulated mRNA translation machinery in cancer pathogenesis and therapeutic value of ribosome-inactivating proteins. Biochim Biophys Acta Rev Cancer 2023; 1878:189018. [PMID: 37944831 DOI: 10.1016/j.bbcan.2023.189018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/17/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
Dysregulated protein synthesis is a hallmark of tumors. mRNA translation reprogramming contributes to tumorigenesis, which is fueled by abnormalities in ribosome formation, tRNA abundance and modification, and translation factors. Not only malignant cells but also stromal cells within tumor microenvironment can undergo transformation toward tumorigenic phenotypes during translational reprogramming. Ribosome-inactivating proteins (RIPs) have garnered interests for their ability to selectively inhibit protein synthesis and suppress tumor growth. This review summarizes the role of dysregulated translation machinery in tumor development and explores the potential of RIPs in cancer treatment.
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Affiliation(s)
- Wentao Jia
- Oncology Department of Traditional Chinese Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China; Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai 200043, China
| | - Jiaying Yuan
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Shu Li
- Department of Gastroenterology, Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201900, China.
| | - Binbin Cheng
- Oncology Department of Traditional Chinese Medicine, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China; Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai 200043, China.
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5
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Ramalingam PS, Priyadharshini A, Emerson IA, Arumugam S. Potential biomarkers uncovered by bioinformatics analysis in sotorasib resistant-pancreatic ductal adenocarcinoma. Front Med (Lausanne) 2023; 10:1107128. [PMID: 37396909 PMCID: PMC10310804 DOI: 10.3389/fmed.2023.1107128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 04/11/2023] [Indexed: 07/04/2023] Open
Abstract
Background Mutant KRAS-induced tumorigenesis is prevalent in lung, colon, and pancreatic ductal adenocarcinomas. For the past 3 decades, KRAS mutants seem undruggable due to their high-affinity GTP-binding pocket and smooth surface. Structure-based drug design helped in the design and development of first-in-class KRAS G12C inhibitor sotorasib (AMG 510) which was then approved by the FDA. Recent reports state that AMG 510 is becoming resistant in non-small-cell lung cancer (NSCLC), pancreatic ductal adenocarcinoma (PDAC), and lung adenocarcinoma patients, and the crucial drivers involved in this resistance mechanism are unknown. Methods In recent years, RNA-sequencing (RNA-seq) data analysis has become a functional tool for profiling gene expression. The present study was designed to find the crucial biomarkers involved in the sotorasib (AMG 510) resistance in KRAS G12C-mutant MIA-PaCa2 cell pancreatic ductal adenocarcinoma cells. Initially, the GSE dataset was retrieved from NCBI GEO, pre-processed, and then subjected to differentially expressed gene (DEG) analysis using the limma package. Then the identified DEGs were subjected to protein-protein interaction (PPI) using the STRING database, followed by cluster analysis and hub gene analysis, which resulted in the identification of probable markers. Results Furthermore, the enrichment and survival analysis revealed that the small unit ribosomal protein (RP) RPS3 is the crucial biomarker of the AMG 510 resistance in KRAS G12C-mutant MIA-PaCa2 cell pancreatic ductal adenocarcinoma cells. Conclusion Finally, we conclude that RPS3 is a crucial biomarker in sotorasib resistance which evades apoptosis by MDM2/4 interaction. We also suggest that the combinatorial treatment of sotorasib and RNA polymerase I machinery inhibitors could be a possible strategy to overcome resistance and should be studied in in vitro and in vivo settings in near future.
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Affiliation(s)
| | - Annadurai Priyadharshini
- Bioinformatics Programming Laboratory, Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Isaac Arnold Emerson
- Bioinformatics Programming Laboratory, Department of Biotechnology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Sivakumar Arumugam
- Protein Engineering Lab, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
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6
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Lee YH, Do SK, Lee SY, Kang HG, Choi JE, Hong MJ, Lee JH, Lee S, Lee WK, Jeong JY, Shin KM, Park JE, Choi SH, Seo H, Yoo SS, Lee J, Cha SI, Kim CH, Park JY. Genetic Variants in Histone Modification Regions Predict Clinical Outcomes of Pemetrexed Chemotherapy in Lung Adenocarcinoma. Oncology 2023; 101:96-104. [PMID: 36257285 PMCID: PMC9932833 DOI: 10.1159/000527492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/15/2022] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study was conducted to investigate the association between genetic variants in histone modification regions and clinical outcomes of PEM chemotherapy in patients with lung adenocarcinoma. METHODS Potentially functional SNPs were selected using integrated analysis of ChIP-seq and RNA-seq. The associations of 279 SNPs with chemotherapy response and overall survival (OS) were analyzed in 314 lung adenocarcinoma patients who underwent PEM chemotherapy. RESULTS Among the SNPs investigated, 18 were significantly associated with response to chemotherapy, while 28 with OS. Of these SNPs, rs549794A>G in an enhancer which is expected to regulate the expression of ribosomal protein S3 (RPS3) gene was significantly associated with both worse response to chemotherapy and worse OS (adjusted odds ratio = 0.59, 95% CI = 0.36-0.97, p = 0.04; adjusted hazard ratio = 1.44, 95% CI = 1.09-1.91, p = 0.01, respectively). Previous studies suggested that RPS3, a multi-functional protein with various extraribosomal activities, may play a role in chemotherapy resistance. Therefore, it is postulated that rs549794-induced change in the expression level of RPS3 may affect the response to PEM chemotherapy and consequently the survival outcomes in lung adenocarcinoma patients. CONCLUSION This study suggests that genetic variants in the histone modification regions may be useful for the prediction of clinical outcomes of PEM chemotherapy in advanced lung adenocarcinoma.
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Affiliation(s)
- Yong Hoon Lee
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sook Kyung Do
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Shin Yup Lee
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Lung Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea,*Shin Yup Lee,
| | - Hyo-Gyoung Kang
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jin Eun Choi
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Mi Jeong Hong
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jang Hyuck Lee
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sunwoong Lee
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Won Kee Lee
- Department of Medical Informatics, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Medical Research Collaboration Center in Kyungpook National University Hospital and School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Ji Yun Jeong
- Department of Pathology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Kyung Min Shin
- Department of Radiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Ji Eun Park
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sun Ha Choi
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Lung Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Hyewon Seo
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Seung Soo Yoo
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Lung Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
| | - Jaehee Lee
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Seung Ick Cha
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Chang Ho Kim
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jae Yong Park
- Departments of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, Republic of Korea,Lung Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea,**Jae Yong Park,
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Wang T, Jin C, Yang P, Chen Z, Ji J, Sun Q, Yang S, Feng Y, Tang J, Sun Y. UBE2J1 inhibits colorectal cancer progression by promoting ubiquitination and degradation of RPS3. Oncogene 2023; 42:651-664. [PMID: 36567344 PMCID: PMC9957728 DOI: 10.1038/s41388-022-02581-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/27/2022]
Abstract
Ubiquitin-conjugating enzyme E2 J1 (UBE2J1) has been proven to participate in the ubiquitination of multiple substrate proteins. However, the underlying mechanisms of UBE2J1 as a ubiquitin-conjugating enzyme participating in cancer development and progression remain largely unknown. Here, we identified that UBE2J1 is downregulated in colorectal cancer (CRC) tissues and cell lines which are mediated by DNA hypermethylation of its promoter, and decreased UBE2J1 is associated with poor prognosis. Functionally, UBE2J1 serving as a suppressor gene inhibits the proliferation and metastasis of CRC cells. Mechanistically, UBE2J1-TRIM25, forming an E2-E3 complex, physically interacts with and targets RPS3 for ubiquitination and degradation at the K214 residue. The downregulated RPS3 caused by UBE2J1 overexpression restrains NF-κB translocation into the nucleus and therefore inactivates the NF-κB signaling pathway. Our study revealed a novel role of UBE2J1-mediated RPS3 poly-ubiquitination and degradation in disrupting the NF-κB signaling pathway, which may serve as a novel and promising biomarker and therapeutic target for CRC.
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Affiliation(s)
- Tuo Wang
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Chi Jin
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Peng Yang
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Zhihao Chen
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Jiangzhou Ji
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Qingyang Sun
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Sheng Yang
- grid.412676.00000 0004 1799 0784Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu People’s Republic of China ,grid.89957.3a0000 0000 9255 8984The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984The Colorectal Institute of Nanjing Medical University, Nanjing, China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, Nanjing, China
| | - Yifei Feng
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China. .,The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China. .,The Colorectal Institute of Nanjing Medical University, Nanjing, China. .,Nanjing Medical University, Nanjing, China.
| | - Junwei Tang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China. .,The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China. .,The Colorectal Institute of Nanjing Medical University, Nanjing, China. .,Nanjing Medical University, Nanjing, China.
| | - Yueming Sun
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China. .,The First School of Clinical Medicine, Nanjing Medical University, Nanjing, China. .,The Colorectal Institute of Nanjing Medical University, Nanjing, China. .,Nanjing Medical University, Nanjing, China.
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8
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Sun Z, Zhang J, Zeng F, Zhang S, Chai Z, Luo J, Cao J. Differentially Expressed mRNAs and Potential Mechanisms of
Radiation-Induced TUT4 −/− Esophageal Cell Injury. Dose Response 2022; 20:15593258221136810. [PMCID: PMC9620258 DOI: 10.1177/15593258221136810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 08/30/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Radiation-induced esophageal injury remains a limitation for the process of
radiotherapy for lung and esophageal cancer patients. Esophageal epithelial
cells are extremely sensitive to irradiation, nevertheless, factors involved in
the radiosensitivity of esophageal epithelial cells are still unknown. Terminal
uridyl transferase 4 (TUT4) could modify the sequence of miRNAs, which affect
their regulation on miRNA targets and function. In this study, we used
transcriptome sequencing technology to identify mRNAs that were differentially
expressed before and after radiotherapy in esophageal epithelial cells. We
further explored the mRNA expression profiles between wild-type and TUT4
knockout esophageal epithelial cells. Volcano and heatmap plots unsupervised
hierarchical clustering analysis were performed to classify the samples.
Enrichment analysis on Gene Ontology functional annotations and Kyoto
Encyclopedia of Genes and Genomes pathways was performed. We annotated
differential genes from metabolism, genetic information processing,
environmental information processing, cellular processes, and organismal systems
human diseases. The aberrantly expressed genes are significantly enriched in
irradiation-related biological processes, such as DNA replication, ferroptosis,
and cell cycle. Moreover, we explored the distribution of transcription factor
family and its target genes in differential genes. These mRNAs might serve as
therapeutic targets in TUT4-related radiation-induced esophageal injury.
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Affiliation(s)
- Zhiqiang Sun
- School of Radiation Medicine and
Protection,
Medical
College of Soochow University, Suzhou,
China,Collaborative Innovation Center of
Radiological Medicine of Jiangsu Higher Education
Institutions, Suzhou, China
| | - Jiaqi Zhang
- Department of
Radiotherapy,
The
Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical
University, Changzhou, China
| | - Fanye Zeng
- Second Department of Medical
Oncology,
The Fourth
Affiliated Hospital of Xinjiang Medical
University, Urumqi, China
| | - Shuyu Zhang
- School of Radiation Medicine and
Protection,
Medical
College of Soochow University, Suzhou,
China,Collaborative Innovation Center of
Radiological Medicine of Jiangsu Higher Education
Institutions, Suzhou, China
| | - Zhifang Chai
- School of Radiation Medicine and
Protection,
Medical
College of Soochow University, Suzhou,
China,Collaborative Innovation Center of
Radiological Medicine of Jiangsu Higher Education
Institutions, Suzhou, China
| | - Judong Luo
- Department of
Radiotherapy,
The
Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical
University, Changzhou, China,Judong Luo, Department of Radiotherapy, The
Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University,
Tianning District, Changzhou 213000, China.
| | - Jianping Cao
- School of Radiation Medicine and
Protection,
Medical
College of Soochow University, Suzhou,
China,Collaborative Innovation Center of
Radiological Medicine of Jiangsu Higher Education
Institutions, Suzhou, China
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9
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Temaj G, Hadziselimovic R, Nefic H, Nuhii N. Ribosome biogenesis and ribosome therapy in cancer cells. RESEARCH RESULTS IN PHARMACOLOGY 2022. [DOI: 10.3897/rrpharmacology.8.81706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Introduction: The process of protein synthesis is a vital process for all kingdoms of life. The ribosome is a ribonucleoprotein complex that reads the genetic code, from messenger RNA (mRNA) to produce proteins and to tightly regulate and ensure cells growth. The fact that numerous diseases are caused by defect during the ribosome biogenesis is important to understand this pathway.
Materials and methods: We have analyzed the literature for ribosome biogenesis and its links with different diseases which have been found.
Results and discussion: We have discussed the key aspect of human ribosome biogenesis and its links to diseases. We have also proposed the potential of applying this knowledge to the development of a ribosomal stress-based cancer therapy.
Conclusion: Major challenges in the future will be to determine factors which play a pivotal role during ribosome biogenesis. Therefore, more anti-cancer drugs and gene therapy for genetic diseases will be developed against ribosomal biogenesis in the coming years.
Graphical abstract:
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10
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Siegmund D, Wagner J, Wajant H. TNF Receptor Associated Factor 2 (TRAF2) Signaling in Cancer. Cancers (Basel) 2022; 14:cancers14164055. [PMID: 36011046 PMCID: PMC9406534 DOI: 10.3390/cancers14164055] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/05/2022] [Accepted: 08/19/2022] [Indexed: 12/19/2022] Open
Abstract
Simple Summary Tumor necrosis factor (TNF) receptor associated factor-2 (TRAF2) is an intracellular adapter protein with E3 ligase activity, which interacts with a plethora of other signaling proteins, including plasma membrane receptors, kinases, phosphatases, other E3 ligases, and deubiquitinases. TRAF2 is involved in various cancer-relevant cellular processes, such as the activation of transcription factors of the NFκB family, stimulation of mitogen-activated protein (MAP) kinase cascades, endoplasmic reticulum (ER) stress signaling, autophagy, and the control of cell death programs. In a context-dependent manner, TRAF2 promotes tumor development but it can also act as a tumor suppressor. Based on a general description, how TRAF2 in concert with TRAF2-interacting proteins and other TRAF proteins act at the molecular level is discussed for its importance for tumor development and its potential usefulness as a therapeutic target in cancer therapy. Abstract Tumor necrosis factor (TNF) receptor associated factor-2 (TRAF2) has been originally identified as a protein interacting with TNF receptor 2 (TNFR2) but also binds to several other receptors of the TNF receptor superfamily (TNFRSF). TRAF2, often in concert with other members of the TRAF protein family, is involved in the activation of the classical NFκB pathway and the stimulation of various mitogen-activated protein (MAP) kinase cascades by TNFRSF receptors (TNFRs), but is also required to inhibit the alternative NFκB pathway. TRAF2 has also been implicated in endoplasmic reticulum (ER) stress signaling, the regulation of autophagy, and the control of cell death programs. TRAF2 fulfills its functions by acting as a scaffold, bringing together the E3 ligase cellular inhibitor of apoptosis-1 (cIAP1) and cIAP2 with their substrates and various regulatory proteins, e.g., deubiquitinases. Furthermore, TRAF2 can act as an E3 ligase by help of its N-terminal really interesting new gene (RING) domain. The finding that TRAF2 (but also several other members of the TRAF family) interacts with the latent membrane protein 1 (LMP1) oncogene of the Epstein–Barr virus (EBV) indicated early on that TRAF2 could play a role in the oncogenesis of B-cell malignancies and EBV-associated non-keratinizing nasopharyngeal carcinoma (NPC). TRAF2 can also act as an oncogene in solid tumors, e.g., in colon cancer by promoting Wnt/β-catenin signaling. Moreover, tumor cell-expressed TRAF2 has been identified as a major factor-limiting cancer cell killing by cytotoxic T-cells after immune checkpoint blockade. However, TRAF2 can also be context-dependent as a tumor suppressor, presumably by virtue of its inhibitory effect on the alternative NFκB pathway. For example, inactivating mutations of TRAF2 have been associated with tumor development, e.g., in multiple myeloma and mantle cell lymphoma. In this review, we summarize the various TRAF2-related signaling pathways and their relevance for the oncogenic and tumor suppressive activities of TRAF2. Particularly, we discuss currently emerging concepts to target TRAF2 for therapeutic purposes.
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11
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Chen L, Gao W, Sha C, Yang M, Lin L, Li T, Wei H, Chen Q, Xing J, Zhang M, Zhao S, Xu W, Li Y, Zhu X. SIAH1-mediated RPS3 ubiquitination contributes to chemosensitivity in epithelial ovarian cancer. Aging (Albany NY) 2022; 14:6202-6226. [PMID: 35951361 PMCID: PMC9417229 DOI: 10.18632/aging.204211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
The E3 ligase SIAH1 is deregulated in human cancers and correlated with poor prognosis, but its contributions to chemoresistance in epithelial ovarian cancer (EOC) are not evident. Herein we found that SIAH1 was decreased in EOC tumour tissues and cell lines and negatively correlated with the RPS3 levels. SIAH1 overexpression suppressed tumour cell growth, colony formation, invasion, metastasis, and cisplatin resistance in vivo and in vitro. SIAH1 promoted RPS3 ubiquitination and degradation using the RING-finger domain, and these steps were required for RPS3 localization to the cytoplasm, which led to subsequent NF-κB inactivation and thereby conferred chemosensitivity. Moreover, ectopic expression of RPS3 or depletion of RPS3 ubiquitination mediated by SIAH1 via the K214R mutant significantly impaired cisplatin-induced tumour suppression in cells stably expressing SIAH1. Together, our findings reveal a tumour suppressor function of SIAH1 and provide evidence showing that the SIAH1-RPS3-NF-κB axis may act as an appealing strategy for tackling treatment resistance in EOC.
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Affiliation(s)
- Lu Chen
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wujiang Gao
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Chunli Sha
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Meiling Yang
- Obstetrics and Gynecology, The First People's Hospital of Nantong City, Nantong, Jiangsu, China
| | - Li Lin
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Taoqiong Li
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hong Wei
- Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Qi Chen
- Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jie Xing
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Mengxue Zhang
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Shijie Zhao
- Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wenlin Xu
- Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yuefeng Li
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaolan Zhu
- Reproductive Medicine Center, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Central laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.,International Genome Center of Jiangsu University, Zhenjiang, Jiangsu, China
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12
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Elhamamsy AR, Metge BJ, Alsheikh HA, Shevde LA, Samant RS. Ribosome Biogenesis: A Central Player in Cancer Metastasis and Therapeutic Resistance. Cancer Res 2022; 82:2344-2353. [PMID: 35303060 PMCID: PMC9256764 DOI: 10.1158/0008-5472.can-21-4087] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/01/2022] [Accepted: 03/16/2022] [Indexed: 01/07/2023]
Abstract
Ribosomes are a complex ensemble of rRNA and ribosomal proteins that function as mRNA translation machines. Ribosome biogenesis is a multistep process that begins in the nucleolus and concludes in the cytoplasm. The process is tightly controlled by multiple checkpoint and surveillance pathways. Perturbations in these checkpoints and pathways can lead to hyperactivation of ribosome biogenesis. Emerging evidence suggests that cancer cells harbor a specialized class of ribosomes (onco-ribosomes) that facilitates the oncogenic translation program, modulates cellular functions, and promotes metabolic rewiring. Mutations in ribosomal proteins, rRNA processing, and ribosome assembly factors result in ribosomopathies that are associated with an increased risk of developing malignancies. Recent studies have linked mutations in ribosomal proteins and aberrant ribosomes with poor prognosis, highlighting ribosome-targeted therapy as a promising approach for treating patients with cancer. Here, we summarize various aspects of dysregulation of ribosome biogenesis and the impact of resultant onco-ribosomes on malignant tumor behavior, therapeutic resistance, and clinical outcome. Ribosome biogenesis is a promising therapeutic target, and understanding the important determinants of this process will allow for improved and perhaps selective therapeutic strategies to target ribosome biosynthesis.
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Affiliation(s)
- Amr R. Elhamamsy
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Brandon J. Metge
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Heba A. Alsheikh
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama
| | - Lalita A. Shevde
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama.,O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Rajeev S. Samant
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama.,O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama.,Birmingham VA Medical Center, Birmingham, Alabama.,Corresponding Author: Rajeev S. Samant, The University of Alabama at Birmingham, WTI 320E, 1824 6th Avenue South, Birmingham, AL 35233. Phone: 205-975-6262; E-mail:
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13
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PRRSV Induces HMGB1 Phosphorylation at Threonine-51 Residue to Enhance Its Secretion. Viruses 2022; 14:v14051002. [PMID: 35632744 PMCID: PMC9144045 DOI: 10.3390/v14051002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 11/16/2022] Open
Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) induces secretion of high mobility group box 1 (HMGB1) to mediate inflammatory response that is involved in the pulmonary injury of infected pigs. Our previous study indicates that protein kinase C-delta (PKC-delta) is essential for HMGB1 secretion in PRRSV-infected cells. However, the underlying mechanism in HMGB1 secretion induced by PRRSV infection is still unclear. Here, we discovered that the phosphorylation level of HMGB1 in threonine residues increased in PRRSV-infected cells. A site-directed mutagenesis study showed that HMGB1 phosphorylation at threonine-51 was associated with HMGB1 secretion induced by PRRSV infection. Co-immunoprecipitation (co-IP) of HMGB1 failed to precipitate PKC-delta, but interestingly, mass spectrometry analysis of the HMGB1 co-IP product showed that PRRSV infection enhanced HMGB1 binding to ribosomal protein S3 (RPS3), which has various extra-ribosomal functions. The silencing of RPS3 by siRNA blocked HMGB1 secretion induced by PRRSV infection. Moreover, the phosphorylation of HMGB1 at threonine-51 was correlated with the interaction between HMGB1 and RPS3. In vivo, PRRSV infection also increased RPS3 levels and nuclear accumulation in pulmonary alveolar macrophages. These results demonstrate that PRRSV may induce HMGB1 phosphorylation at threonine-51 and increase its interaction with RPS3 to enhance HMGB1 secretion. This finding provides insights into the pathogenesis of PRRSV infection.
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14
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Deregulation of ribosomal proteins in human cancers. Biosci Rep 2021; 41:230380. [PMID: 34873618 PMCID: PMC8685657 DOI: 10.1042/bsr20211577] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/28/2021] [Accepted: 11/22/2021] [Indexed: 12/26/2022] Open
Abstract
The ribosome, the site for protein synthesis, is composed of ribosomal RNAs (rRNAs) and ribosomal proteins (RPs). The latter have been shown to have many ribosomal and extraribosomal functions. RPs are implicated in a variety of pathological processes, especially tumorigenesis and cell transformation. In this review, we will focus on the recent advances that shed light on the effects of RPs deregulation in different types of cancer and their roles in regulating the tumor cell fate.
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15
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Kachaev ZM, Ivashchenko SD, Kozlov EN, Lebedeva LA, Shidlovskii YV. Localization and Functional Roles of Components of the Translation Apparatus in the Eukaryotic Cell Nucleus. Cells 2021; 10:3239. [PMID: 34831461 PMCID: PMC8623629 DOI: 10.3390/cells10113239] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 12/15/2022] Open
Abstract
Components of the translation apparatus, including ribosomal proteins, have been found in cell nuclei in various organisms. Components of the translation apparatus are involved in various nuclear processes, particularly those associated with genome integrity control and the nuclear stages of gene expression, such as transcription, mRNA processing, and mRNA export. Components of the translation apparatus control intranuclear trafficking; the nuclear import and export of RNA and proteins; and regulate the activity, stability, and functional recruitment of nuclear proteins. The nuclear translocation of these components is often involved in the cell response to stimulation and stress, in addition to playing critical roles in oncogenesis and viral infection. Many components of the translation apparatus are moonlighting proteins, involved in integral cell stress response and coupling of gene expression subprocesses. Thus, this phenomenon represents a significant interest for both basic and applied molecular biology. Here, we provide an overview of the current data regarding the molecular functions of translation factors and ribosomal proteins in the cell nucleus.
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Affiliation(s)
- Zaur M. Kachaev
- Department of Gene Expression Regulation in Development, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia; (Z.M.K.); (S.D.I.); (E.N.K.); (L.A.L.)
- Center for Genetics and Life Science, Sirius University of Science and Technology, 354340 Sochi, Russia
| | - Sergey D. Ivashchenko
- Department of Gene Expression Regulation in Development, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia; (Z.M.K.); (S.D.I.); (E.N.K.); (L.A.L.)
| | - Eugene N. Kozlov
- Department of Gene Expression Regulation in Development, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia; (Z.M.K.); (S.D.I.); (E.N.K.); (L.A.L.)
| | - Lyubov A. Lebedeva
- Department of Gene Expression Regulation in Development, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia; (Z.M.K.); (S.D.I.); (E.N.K.); (L.A.L.)
| | - Yulii V. Shidlovskii
- Department of Gene Expression Regulation in Development, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia; (Z.M.K.); (S.D.I.); (E.N.K.); (L.A.L.)
- Center for Genetics and Life Science, Sirius University of Science and Technology, 354340 Sochi, Russia
- Department of Biology and General Genetics, Sechenov First Moscow State Medical University (Sechenov University), 119992 Moscow, Russia
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16
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Elbanna M, Chowdhury NN, Rhome R, Fishel ML. Clinical and Preclinical Outcomes of Combining Targeted Therapy With Radiotherapy. Front Oncol 2021; 11:749496. [PMID: 34733787 PMCID: PMC8558533 DOI: 10.3389/fonc.2021.749496] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022] Open
Abstract
In the era of precision medicine, radiation medicine is currently focused on the precise delivery of highly conformal radiation treatments. However, the tremendous developments in targeted therapy are yet to fulfill their full promise and arguably have the potential to dramatically enhance the radiation therapeutic ratio. The increased ability to molecularly profile tumors both at diagnosis and at relapse and the co-incident progress in the field of radiogenomics could potentially pave the way for a more personalized approach to radiation treatment in contrast to the current ‘‘one size fits all’’ paradigm. Few clinical trials to date have shown an improved clinical outcome when combining targeted agents with radiation therapy, however, most have failed to show benefit, which is arguably due to limited preclinical data. Several key molecular pathways could theoretically enhance therapeutic effect of radiation when rationally targeted either by directly enhancing tumor cell kill or indirectly through the abscopal effect of radiation when combined with novel immunotherapies. The timing of combining molecular targeted therapy with radiation is also important to determine and could greatly affect the outcome depending on which pathway is being inhibited.
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Affiliation(s)
- May Elbanna
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN, United States.,Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Nayela N Chowdhury
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ryan Rhome
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, IN, United States.,Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Melissa L Fishel
- Indiana University Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States.,Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, United States.,Department of Pediatrics and Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
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17
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Kang H, Lee S, Kim K, Jeon J, Kang SG, Youn H, Kim HY, Youn B. Downregulated CLIP3 induces radioresistance by enhancing stemness and glycolytic flux in glioblastoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:282. [PMID: 34488821 PMCID: PMC8420000 DOI: 10.1186/s13046-021-02077-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/17/2021] [Indexed: 12/30/2022]
Abstract
Background Glioblastoma Multiforme (GBM) is a malignant primary brain tumor in which the standard treatment, ionizing radiation (IR), achieves a median survival of about 15 months. GBM harbors glioblastoma stem-like cells (GSCs), which play a crucial role in therapeutic resistance and recurrence. Methods Patient-derived GSCs, GBM cell lines, intracranial GBM xenografts, and GBM sections were used to measure mRNA and protein expression and determine the related molecular mechanisms by qRT-PCR, immunoblot, immunoprecipitation, immunofluorescence, OCR, ECAR, live-cell imaging, and immunohistochemistry. Orthotopic GBM xenograft models were applied to investigate tumor inhibitory effects of glimepiride combined with radiotherapy. Results We report that GSCs that survive standard treatment radiation upregulate Speedy/RINGO cell cycle regulator family member A (Spy1) and downregulate CAP-Gly domain containing linker protein 3 (CLIP3, also known as CLIPR-59). We discovered that Spy1 activation and CLIP3 inhibition coordinately shift GBM cell glucose metabolism to favor glycolysis via two cellular processes: transcriptional regulation of CLIP3 and facilitating Glucose transporter 3 (GLUT3) trafficking to cellular membranes in GBM cells. Importantly, in combination with IR, glimepiride, an FDA-approved medication used to treat type 2 diabetes mellitus, disrupts GSCs maintenance and suppresses glycolytic activity by restoring CLIP3 function. In addition, combining radiotherapy and glimepiride significantly reduced GBM growth and improved survival in a GBM orthotopic xenograft mouse model. Conclusions Our data suggest that radioresistant GBM cells exhibit enhanced stemness and glycolytic activity mediated by the Spy1-CLIP3 axis. Thus, glimepiride could be an attractive strategy for overcoming radioresistance and recurrence by rescuing CLIP3 expression. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02077-4.
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Affiliation(s)
- Hyunkoo Kang
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Sungmin Lee
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea.,Present address: Institute of Bioinnovation Research, Kolon Life Science, Seoul, Republic of Korea
| | - Kyeongmin Kim
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Jaewan Jeon
- Department of Radiation Oncology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Seok-Gu Kang
- Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Medical Sciences, Yonsei University Graduate School, Seoul, Republic of Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Hae Yu Kim
- Department of Neurosurgery, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea. .,Department of Biological Sciences, Pusan National University, Busandaehak-ro 63beon-gil 2, Geumjeong-gu, Busan, 46241, Republic of Korea.
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18
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Kang J, Brajanovski N, Chan KT, Xuan J, Pearson RB, Sanij E. Ribosomal proteins and human diseases: molecular mechanisms and targeted therapy. Signal Transduct Target Ther 2021; 6:323. [PMID: 34462428 PMCID: PMC8405630 DOI: 10.1038/s41392-021-00728-8] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 07/12/2021] [Accepted: 07/30/2021] [Indexed: 02/07/2023] Open
Abstract
Ribosome biogenesis and protein synthesis are fundamental rate-limiting steps for cell growth and proliferation. The ribosomal proteins (RPs), comprising the structural parts of the ribosome, are essential for ribosome assembly and function. In addition to their canonical ribosomal functions, multiple RPs have extra-ribosomal functions including activation of p53-dependent or p53-independent pathways in response to stress, resulting in cell cycle arrest and apoptosis. Defects in ribosome biogenesis, translation, and the functions of individual RPs, including mutations in RPs have been linked to a diverse range of human congenital disorders termed ribosomopathies. Ribosomopathies are characterized by tissue-specific phenotypic abnormalities and higher cancer risk later in life. Recent discoveries of somatic mutations in RPs in multiple tumor types reinforce the connections between ribosomal defects and cancer. In this article, we review the most recent advances in understanding the molecular consequences of RP mutations and ribosomal defects in ribosomopathies and cancer. We particularly discuss the molecular basis of the transition from hypo- to hyper-proliferation in ribosomopathies with elevated cancer risk, a paradox termed "Dameshek's riddle." Furthermore, we review the current treatments for ribosomopathies and prospective therapies targeting ribosomal defects. We also highlight recent advances in ribosome stress-based cancer therapeutics. Importantly, insights into the mechanisms of resistance to therapies targeting ribosome biogenesis bring new perspectives into the molecular basis of cancer susceptibility in ribosomopathies and new clinical implications for cancer therapy.
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Affiliation(s)
- Jian Kang
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC Australia
| | - Natalie Brajanovski
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia
| | - Keefe T. Chan
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC Australia
| | - Jiachen Xuan
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC Australia
| | - Richard B. Pearson
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC Australia ,grid.1002.30000 0004 1936 7857Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC Australia ,grid.1008.90000 0001 2179 088XDepartment of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, VIC Australia
| | - Elaine Sanij
- grid.1055.10000000403978434Division of Cancer Research, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XDepartment of Clinical Pathology, University of Melbourne, Melbourne, VIC Australia ,grid.1073.50000 0004 0626 201XSt. Vincent’s Institute of Medical Research, Fitzroy, VIC Australia
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Fucosylated Proteome Profiling Identifies a Fucosylated, Non-Ribosomal, Stress-Responsive Species of Ribosomal Protein S3. Cells 2021; 10:cells10061310. [PMID: 34070332 PMCID: PMC8228307 DOI: 10.3390/cells10061310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Dysregulated fucosylation has been characterized as an underlying cause or a contributor to the pathogenesis of several disease states. However, to date, there is not a clear understanding of how and what proteins, signaling pathways, and cellular processes are impacted by fucosylation. Here, we characterized the proteins recognized by a fucose-binding lectin and unexpectedly discovered that many intracellular proteins are putatively subject to posttranslational fucosylation. We further found that fucosylation on intracellular ribosomal protein S3 responds to stimulus, and that it appears to be independent of the currently characterized fucosylation pathway. This work suggests a to-date-underappreciated role for fucosylation on intracellular proteins and supports the existence of fucosylation capabilities within cells that is not fully known. Abstract Alterations in genes encoding for proteins that control fucosylation are known to play causative roles in several developmental disorders, such as Dowling-Degos disease 2 and congenital disorder of glycosylation type IIc (CDGIIc). Recent studies have provided evidence that changes in fucosylation can contribute to the development and progression of several different types of cancers. It is therefore important to gain a detailed understanding of how fucosylation is altered in disease states so that interventions may be developed for therapeutic purposes. In this report, we find that fucosylation occurs on many intracellular proteins. This is an interesting finding, as the fucosylation machinery is restricted to the secretory pathway and is thought to predominately affect cell-membrane-bound and secreted proteins. We find that Ribosomal protein S3 (RPS3) is fucosylated in normal tissues and in cancer cells, and that the extent of its fucosylation appears to respond to stress, including MAPK inhibitors, suggesting a new role in posttranslational protein function. Our data identify a new ribosome-independent species of fucosylated RPS3 that interacts with proteins involved in posttranscriptional regulation of RNA, such as Heterogeneous nuclear ribonucleoprotein U (HNRNPU), as well as with a predominance of non-coding RNAs. These data highlight a novel role for RPS3, which, given previously reported oncogenic roles for RPS3, might represent functions that are perturbed in pathologies such as cancer. Together, our findings suggest a previously unrecognized role for fucosylation in directly influencing intracellular protein functions.
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Shochat C, Wang Z, Mo C, Nelson S, Donaka R, Huang J, Karasik D, Brotto M. Deletion of SREBF1, a Functional Bone-Muscle Pleiotropic Gene, Alters Bone Density and Lipid Signaling in Zebrafish. Endocrinology 2021; 162:5929645. [PMID: 33068391 PMCID: PMC7745669 DOI: 10.1210/endocr/bqaa189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Indexed: 12/30/2022]
Abstract
Through a genome-wide analysis of bone mineral density (BMD) and muscle mass, identification of a signaling pattern on 17p11.2 recognized the presence of sterol regulatory element-binding factor 1 (SREBF1), a gene responsible for the regulation of lipid homeostasis. In conjunction with lipid-based metabolic functions, SREBF1 also codes for the protein, SREBP-1, a transcription factor known for its role in adipocyte differentiation. We conducted a quantitative correlational study. We established a zebrafish (ZF) SREBF1 knockout (KO) model and used a targeted customized lipidomics approach to analyze the extent of SREBF1 capabilities. For lipidomics profiling, we isolated the dorsal muscles of wild type (WT) and KO fishes, and we performed liquid chromatography-tandem mass spectrometry screening assays of these samples. In our analysis, we profiled 48 lipid mediators (LMs) derived from various essential polyunsaturated fatty acids to determine potential targets regulated by SREBF1, and we found that the levels of 11,12 epoxyeicosatrienoic acid (11,12-EET) were negatively associated with the number of SREBF1 alleles (P = 0.006 for a linear model). We also compared gene expression between KO and WT ZF by genome-wide RNA-sequencing. Significantly enriched pathways included fatty acid elongation, linoleic acid metabolism, arachidonic acid metabolism, adipocytokine signaling, and DNA replication. We discovered trends indicating that BMD in adult fish was significantly lower in the KO than in the WT population (P < 0.03). These studies reinforce the importance of lipidomics investigation by detailing how the KO of SREBF1 affects both BMD and lipid-signaling mediators, thus confirming the importance of SREBF1 for musculoskeletal homeostasis.
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Affiliation(s)
- Chen Shochat
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Zhiying Wang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - Chenglin Mo
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - Sarah Nelson
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | | | - Jian Huang
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
| | - David Karasik
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- Correspondence: David Karasik, Azrieli Faculty of Medicine, Bar-Ilan university, Safed, 1311502, Israel. E-mail:
| | - Marco Brotto
- Bone-Muscle Research Center, College of Nursing & Health Innovation, University of Texas at Arlington-UTA, Arlington, Texas
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21
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Xie J, Zhang W, Liang X, Shuai C, Zhou Y, Pan H, Yang Y, Han W. RPL32 Promotes Lung Cancer Progression by Facilitating p53 Degradation. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 21:75-85. [PMID: 32516735 PMCID: PMC7281510 DOI: 10.1016/j.omtn.2020.05.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 05/12/2020] [Accepted: 05/18/2020] [Indexed: 12/25/2022]
Abstract
Lung cancer is the leading cause of cancer death worldwide, and the overall survival rate of advanced lung cancer patients is unsatisfactory. Ribosomal proteins (RPs) play important roles in carcinogenesis. However, the role of RPL32 in lung cancer has not been demonstrated. Here, we report that RPL32 is aberrantly, highly expressed in lung cancer tissues and that the overexpression of RPL32 is correlated with the poor prognosis of these patients. RPL32 silencing significantly inhibited the proliferation of lung cancer cells, with an observed p53 accumulation and cell-cycle arrest. Mechanistically, knockdown of RPL32 resulted in ribosomal stress and affected rRNA maturation. RPL5 and RPL11 sensed stress and translocated from the nucleus to the nucleoplasm, where they bound to murine double minute 2 (MDM2), an important p53 E3 ubiquitin ligase, which resulted in p53 accumulation and inhibition of cancer cell proliferation. As lung cancer cells usually express high levels of Toll-like receptor 9 (TLR9), we conjugated RPL32 small interfering RNA (siRNA) to the TLR9 ligand CpG to generate CpG-RPL32 siRNA, which could stabilize and guide RPL32 siRNA to lung cancer cells. Excitingly, CpG-RPL32 siRNA displayed strong anticancer abilities in lung cancer xenografts. Therefore, RPL32 is expected to be a potential target for lung cancer treatment.
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Affiliation(s)
- Jiansheng Xie
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Zhang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiaojing Liang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chong Shuai
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yubin Zhou
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX 77030, USA
| | - Hongming Pan
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Yunhai Yang
- Cancer Center of Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
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Abdraboh ME, Essa ZS, Abdelrazzak AB, El-Far YM, Elsherbini Y, El-Zayat MM, Ali DA. Radio-sensitizing effect of a cocktail of phytochemicals on HepG2 cell proliferation, motility and survival. Biomed Pharmacother 2020; 131:110620. [PMID: 32892028 DOI: 10.1016/j.biopha.2020.110620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/28/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
Radio-resistance is a major hurdle challenging oncologist worldwide. Despite their anti-cancer characteristics, the implication of phytochemicals in clinical trials is still limited. This study is designed to evaluate the anticancer characteristics and radio-sensitizing effect of a cocktail of seven phytochemicals on HepG2 cells. Characterization of phytochemicals combination phenolic and flavonoids content as well as their scavenging activity were tested. The effective concentration of BSG that will be used as a radio-sensitizing dose was calculated using AlamarBlue assay. Treatment of HepG2 cells with BSG and/or ionizing radiations led to significant downregulation at cell proliferation as indicated by the decrease of colony formation ratio, proliferation marker (Ki67) expression as well as G2/M cell cycle arrest. The combined treatment stimulated P53-dependent apoptosis which was indicated by the significant increase of early apoptosis marker (Annexin V) expression, DNA fragmentation, expression of P53 & Bax and downregulation of Bcl2 expression. Combined treatment significantly attenuated HepG2 cell motility which was validated using wound healing migration assay and the significant reduction at CD95 expression. This study demonstrates the anti-cancer effect of BSG and its fundamental role in provoking cell responsiveness to IR leading to a significant inhibition at HepG2 cell proliferation, survival and migration.
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Affiliation(s)
- Mohamed E Abdraboh
- Associate Professor of Molecular Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Egypt.
| | - Zaidoon Shaker Essa
- MSc of Molecular Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Egypt
| | - Abdelrazek B Abdelrazzak
- Associate Professor of Biophysics, Spectroscopy Department, Physics Research Division, National Research Center, Egypt
| | - Yousra M El-Far
- Lecturer of Biochemistry, Faculty of Pharmacy, Mansoura University, Egypt
| | | | - Mustafa M El-Zayat
- Unit of Genetic Engineering and Biotechnology, Mansoura University, Mansoura, Egypt
| | - Doaa A Ali
- Associate Professor of Histology and Cell Biology, Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
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23
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Screening and identification of potential prognostic biomarkers in bladder urothelial carcinoma: Evidence from bioinformatics analysis. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Ugidos N, Mena J, Baquero S, Alloza I, Azkargorta M, Elortza F, Vandenbroeck K. Interactome of the Autoimmune Risk Protein ANKRD55. Front Immunol 2019; 10:2067. [PMID: 31620119 PMCID: PMC6759997 DOI: 10.3389/fimmu.2019.02067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 08/15/2019] [Indexed: 01/03/2023] Open
Abstract
The ankyrin repeat domain-55 (ANKRD55) gene contains intronic single nucleotide polymorphisms (SNPs) associated with risk to contract multiple sclerosis, rheumatoid arthritis or other autoimmune disorders. Risk alleles of these SNPs are associated with higher levels of ANKRD55 in CD4+ T cells. The biological function of ANKRD55 is unknown, but given that ankyrin repeat domains constitute one of the most common protein-protein interaction platforms in nature, it is likely to function in complex with other proteins. Thus, identification of its protein interactomes may provide clues. We identified ANKRD55 interactomes via recombinant overexpression in HEK293 or HeLa cells and mass spectrometry. One hundred forty-eight specifically interacting proteins were found in total protein extracts and 22 in extracts of sucrose gradient-purified nuclei. Bioinformatic analysis suggested that the ANKRD55-protein partners from total protein extracts were related to nucleotide and ATP binding, enriched in nuclear transport terms and associated with cell cycle and RNA, lipid and amino acid metabolism. The enrichment analysis of the ANKRD55-protein partners from nuclear extracts is related to sumoylation, RNA binding, processes associated with cell cycle, RNA transport, nucleotide and ATP binding. The interaction between overexpressed ANKRD55 isoform 001 and endogenous RPS3, the cohesins SMC1A and SMC3, CLTC, PRKDC, VIM, β-tubulin isoforms, and 14-3-3 isoforms were validated by western blot, reverse immunoprecipitaton and/or confocal microscopy. We also identified three phosphorylation sites in ANKRD55, with S436 exhibiting the highest score as likely 14-3-3 binding phosphosite. Our study suggests that ANKRD55 may exert function(s) in the formation or architecture of multiple protein complexes, and is regulated by (de)phosphorylation reactions. Based on interactome and subcellular localization analysis, ANKRD55 is likely transported into the nucleus by the classical nuclear import pathway and is involved in mitosis, probably via effects associated with mitotic spindle dynamics.
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Affiliation(s)
- Nerea Ugidos
- Neurogenomiks Group, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Jorge Mena
- Neurogenomiks Group, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Sara Baquero
- Neurogenomiks Group, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Iraide Alloza
- Neurogenomiks Group, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain
| | - Mikel Azkargorta
- Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII, Derio, Spain
| | - Felix Elortza
- Proteomics Platform, CIC bioGUNE, CIBERehd, ProteoRed-ISCIII, Derio, Spain
| | - Koen Vandenbroeck
- Neurogenomiks Group, Department of Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.,Achucarro Basque Center for Neuroscience, Leioa, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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25
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Molavi G, Samadi N, Hosseingholi EZ. The roles of moonlight ribosomal proteins in the development of human cancers. J Cell Physiol 2018; 234:8327-8341. [PMID: 30417503 DOI: 10.1002/jcp.27722] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 09/23/2018] [Indexed: 12/13/2022]
Abstract
"Moonlighting protein" is a term used to define a single protein with multiple functions and different activities that are not derived from gene fusions, multiple RNA splicing, or the proteolytic activity of promiscuous enzymes. Different proteinous constituents of ribosomes have been shown to have important moonlighting extra-ribosomal functions. In this review, we introduce the impact of key moonlight ribosomal proteins and dependent signal transduction in the initiation and progression of various cancers. As a future perspective, the potential role of these moonlight ribosomal proteins in the diagnosis, prognosis, and development of novel strategies to improve the efficacy of therapies for human cancers has been suggested.
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Affiliation(s)
- Ghader Molavi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasser Samadi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Abstract
With the development of radiotherapeutic oncology, computer technology and medical imaging technology, radiation therapy has made great progress. Research on the impact and the specific mechanism of radiation on tumors has become a central topic in cancer therapy. According to the traditional view, radiation can directly affect the structure of the DNA double helix, which in turn activates DNA damage sensors to induce apoptosis, necrosis, and aging or affects normal mitosis events and ultimately rewires various biological characteristics of neoplasm cells. In addition, irradiation damages subcellular structures, such as the cytoplasmic membrane, endoplasmic reticulum, ribosome, mitochondria, and lysosome of cancer cells to regulate various biological activities of tumor cells. Recent studies have shown that radiation can also change the tumor cell phenotype, immunogenicity and microenvironment, thereby globally altering the biological behavior of cancer cells. In this review, we focus on the effects of therapeutic radiation on the biological features of tumor cells to provide a theoretical basis for combinational therapy and inaugurate a new era in oncology.
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Affiliation(s)
- Jin-Song Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, RM6102, New Research Building, 17 Panjiayuan Nanli, Chaoyang District, 100021, Beijing, China
| | - Hai-Juan Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, RM6102, New Research Building, 17 Panjiayuan Nanli, Chaoyang District, 100021, Beijing, China.
| | - Hai-Li Qian
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, RM6102, New Research Building, 17 Panjiayuan Nanli, Chaoyang District, 100021, Beijing, China.
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27
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Kim W, Youn H, Lee S, Kim E, Kim D, Sub Lee J, Lee JM, Youn B. RNF138-mediated ubiquitination of rpS3 is required for resistance of glioblastoma cells to radiation-induced apoptosis. Exp Mol Med 2018; 50:e434. [PMID: 29371697 PMCID: PMC5799804 DOI: 10.1038/emm.2017.247] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 07/10/2017] [Accepted: 07/23/2017] [Indexed: 02/06/2023] Open
Abstract
An interaction between ribosomal protein S3 (rpS3) and nuclear factor kappa B or macrophage migration inhibitory factor in non-small-cell lung cancer is responsible for radioresistance. However, the role of rpS3 in glioblastoma (GBM) has not been investigated to date. Here we found that in irradiated GBM cells, rpS3 translocated into the nucleus and was subsequently ubiquitinated by ring finger protein 138 (RNF138). Ubiquitin-dependent degradation of rpS3 consequently led to radioresistance in GBM cells. To elucidate the apoptotic role of rpS3, we analyzed the interactome of rpS3 in ΔRNF138 GBM cells. Nuclear rpS3 interacted with DNA damage inducible transcript 3 (DDIT3), leading to DDIT3-induced apoptosis in irradiated ΔRNF138 GBM cells. These results were confirmed using in vivo orthotopic xenograft models and GBM patient tissues. This study aims to clarify the role of RNF138 in GBM cells and demonstrate that rpS3 may be a promising substrate of RNF138 for the induction of GBM radioresistance, indicating RNF138 as a potential target for GBM therapy.
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Affiliation(s)
- Wanyeon Kim
- Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul, Republic of Korea
| | - Sungmin Lee
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - EunGi Kim
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Daehoon Kim
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Jung Sub Lee
- Department of Orthopaedic Surgery, Medical Research Institute, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Jae-Myung Lee
- Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan, Republic of Korea
| | - BuHyun Youn
- Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
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Abstract
The molecular mechanisms of thymosin beta-4 (TB4) involved in regulating hepatic stellate cell (HSC) functions remain unclear. Therefore, we hypothesize that TB4 influences HSC activation through hedgehog (Hh) pathway. HSC functions declined in a TB4 siRNA-treated LX-2. TB4 suppression down-regulated both integrin linked kinase (ILK), an activator of smoothened, and phosphorylated glycogen synthase kinase 3 beta (pGSK-3B), an inactive form of GSK-3B degrading glioblastoma 2 (GLI2), followed by the decreased expression of both smoothened and GLI2. A TB4 CRISPR also blocked the activation of primary HSCs, with decreased expression of smoothened, GLI2 and ILK compared with cells transfected with nontargeting control CRISPR. Double immunostaining and an immunoprecipitation assay revealed that TB4 interacted with either smoothened at the cytoplasm or GLI2 at the nucleus in LX-2. Smoothened suppression in primary HSCs using a Hh antagonist or adenovirus transduction decreased TB4 expression with the reduced activation of HSCs. Tb4-overexpressing transgenic mice treated with CCl4 were susceptible to the development hepatic fibrosis with higher levels of ILK, pGSK3b, and Hh activity, as compared with wild-type mice. These findings demonstrate that TB4 regulates HSC activation by influencing the activity of Smoothened and GLI2, suggesting TB4 as a novel therapeutic target in liver disease.
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Russo A, Saide A, Smaldone S, Faraonio R, Russo G. Role of uL3 in Multidrug Resistance in p53-Mutated Lung Cancer Cells. Int J Mol Sci 2017; 18:ijms18030547. [PMID: 28273808 PMCID: PMC5372563 DOI: 10.3390/ijms18030547] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/21/2017] [Accepted: 03/01/2017] [Indexed: 01/23/2023] Open
Abstract
Cancer is one of the most common causes of death among adults. Chemotherapy is crucial in determining patient survival and quality of life. However, the development of multidrug resistance (MDR) continues to pose a significant challenge in the management of cancer. In this study, we analyzed the role of human ribosomal protein uL3 (formerly rpL3) in multidrug resistance. Our studies revealed that uL3 is a key determinant of multidrug resistance in p53-mutated lung cancer cells by controlling the cell redox status. We established and characterized a multidrug resistant Calu-6 cell line. We found that uL3 down-regulation correlates positively with multidrug resistance. Restoration of the uL3 protein level re-sensitized the resistant cells to the drug by regulating the reactive oxygen species (ROS) levels, glutathione content, glutamate release, and cystine uptake. Chromatin immunoprecipitation experiments and luciferase assays demonstrated that uL3 coordinated the expression of stress-response genes acting as transcriptional repressors of solute carrier family 7 member 11 (xCT) and glutathione S-transferase α1 (GST-α1), independently of Nuclear factor erythroid 2-related factor 2 (Nrf2). Altogether our results describe a new function of uL3 as a regulator of oxidative stress response genes and advance our understanding of the molecular mechanisms underlying multidrug resistance in cancers.
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Affiliation(s)
- Annapina Russo
- Department of Pharmacy, University of Naples "Federico II", Via Domenico Montesano 49, 80131 Naples, Italy.
| | - Assunta Saide
- Department of Pharmacy, University of Naples "Federico II", Via Domenico Montesano 49, 80131 Naples, Italy.
| | - Silvia Smaldone
- Department of Pharmacology and Systems Therapeutics, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Raffaella Faraonio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Via Sergio Pansini 5, 80131 Naples, Italy.
| | - Giulia Russo
- Department of Pharmacy, University of Naples "Federico II", Via Domenico Montesano 49, 80131 Naples, Italy.
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Odukanmi OA, Salami AT, Koda K, Morakinyo OL, Olaleye SB. Trivalent Chromium Promotes Healing of Experimental Colitis in Mice by Suppression of Inflammation and Oxidative Stress. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/jbm.2017.58009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Kwon T, Youn H, Son B, Kim D, Seong KM, Park S, Kim W, Youn B. DANGER is involved in high glucose-induced radioresistance through inhibiting DAPK-mediated anoikis in non-small cell lung cancer. Oncotarget 2016; 7:7193-206. [PMID: 26769850 PMCID: PMC4872778 DOI: 10.18632/oncotarget.6887] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 01/05/2016] [Indexed: 12/11/2022] Open
Abstract
18F-labeled fluorodeoxyglucose (FDG) uptake during FDG positron emission tomography seems to reflect increased radioresistance. However, the exact molecular mechanism underlying high glucose (HG)-induced radioresistance is unclear. In the current study, we showed that ionizing radiation-induced activation of the MEK-ERK-DAPK-p53 signaling axis is required for anoikis (anchorage-dependent apoptosis) of non-small cell lung cancer (NSCLC) cells in normal glucose media. Phosphorylation of DAPK at Ser734 by ERK was essential for p53 transcriptional activity and radiosensitization. In HG media, overexpressed DANGER directly bound to the death domain of DAPK, thus inhibiting the catalytic activity of DAPK. In addition, inhibition of the DAPK-p53 signaling axis by DANGER promoted anoikis-resistance and epithelial-mesenchymal transition (EMT), resulting in radioresistance of HG-treated NSCLC cells. Notably, knockdown of DANGER enhanced anoikis, EMT inhibition, and radiosensitization in a mouse xenograft model of lung cancer. Taken together, our findings offered evidence that overexpression of DANGER and the subsequent inhibitory effect on DAPK kinase activity are critical responses that account for HG-induced radioresistance of NSCLC.
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Affiliation(s)
- TaeWoo Kwon
- Department of Integrated Biological Science, Pusan National University, Busan, 609-735, Republic of Korea
| | - HyeSook Youn
- Department of Biological Sciences, Pusan National University, Busan, 609-735, Republic of Korea.,Nuclear Science Research Institute, Pusan National University, Busan, 609-735, Republic of Korea
| | - Beomseok Son
- Department of Integrated Biological Science, Pusan National University, Busan, 609-735, Republic of Korea
| | - Daehoon Kim
- Department of Integrated Biological Science, Pusan National University, Busan, 609-735, Republic of Korea
| | - Ki Moon Seong
- National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, 139-706, Republic of Korea
| | - Sungkyun Park
- Department of Physics, Pusan National University, Busan, 609-735, Republic of Korea
| | - Wanyeon Kim
- Department of Biological Sciences, Pusan National University, Busan, 609-735, Republic of Korea.,Nuclear Science Research Institute, Pusan National University, Busan, 609-735, Republic of Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan, 609-735, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan, 609-735, Republic of Korea.,Nuclear Science Research Institute, Pusan National University, Busan, 609-735, Republic of Korea
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32
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Fahl SP, Wang M, Zhang Y, Duc ACE, Wiest DL. Regulatory Roles of Rpl22 in Hematopoiesis: An Old Dog with New Tricks. Crit Rev Immunol 2016; 35:379-400. [PMID: 26853850 DOI: 10.1615/critrevimmunol.v35.i5.30] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ribosomal proteins have long been known to serve critical roles in facilitating the biogenesis of the ribosome and its ability to synthesize proteins. However, evidence is emerging that suggests ribosomal proteins are also capable of performing tissue-restricted, regulatory functions that impact normal development and pathological conditions, including cancer. The challenge in studying such regulatory functions is that elimination of many ribosomal proteins also disrupts ribosome biogenesis and/or function. Thus, it is difficult to determine whether developmental abnormalities resulting from ablation of a ribosomal protein result from loss of core ribosome functions or from loss of the regulatory function of the ribosomal protein. Rpl22, a ribosomal protein component of the large 60S subunit, provides insight into this conundrum; Rpl22 is dispensable for both ribosome biogenesis and protein synthesis yet its ablation causes tissue-restricted disruptions in development. Here we review evidence supporting the regulatory functions of Rpl22 and other ribosomal proteins.
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Affiliation(s)
- Shawn P Fahl
- Blood Cell Development and Function Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111
| | - Minshi Wang
- Blood Cell Development and Function Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111
| | - Yong Zhang
- Blood Cell Development and Function Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111
| | - Anne-Cecile E Duc
- Blood Cell Development and Function Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111
| | - David L Wiest
- Blood Cell Development and Function Program, Fox Chase Cancer Center, 333 Cottman Avenue, Philadelphia, PA 19111
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33
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Baik IH, Jo GH, Seo D, Ko MJ, Cho CH, Lee MG, Lee YH. Knockdown of RPL9 expression inhibits colorectal carcinoma growth via the inactivation of Id-1/NF-κB signaling axis. Int J Oncol 2016; 49:1953-1962. [PMID: 27633352 DOI: 10.3892/ijo.2016.3688] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/25/2016] [Indexed: 11/06/2022] Open
Abstract
Ribosomal protein L9 (RPL9), a component of the 60S subunit for protein synthesis, is upregulated in human colorectal cancer. In the present study, we investigated whether RPL9 gained extraribosomal function during tumorigenesis and whether targeting of RPL9 with small interfering (si) RNA could alter the course of colorectal cancer progression. Our results showed that siRNA knockdown of RPL9 suppresses colorectal cancer (CRC) cell growth and long-term colony formation through an increase in sub-G1 cell population and a strong induction of apoptotic cell death. To obtain insights into the molecular changes in response to RPL9 knockdown, global changes in gene expression were examined using RNA sequencing. It revealed that RPL9-specific knockdown led to dysregulation of 918 genes in HCT116 and 3178 genes in HT29 cells. Among these, 296 genes showed same directional regulation (128 upregulated and 168 downregulated genes) and were considered as a common RPL9 knockdown signature. Particularly, we found through a network analysis that Id-1, which is functionally associated with activation of NF-κB and cell survival, was commonly downregulated. Subsequent western blot analysis affirmed that RPL9 silencing induced the decrease in the levels of Id-1 and phosphorylated IκBα in both HCT116 and HT29 cells. Also, the same condition decreased the levels of PARP-1 and pro-caspase-3, accelerating apoptosis. Furthermore, inhibition of RPL9 expression significantly suppressed the growth of human CRC xenografts in nude mice. These findings indicate that the function of RPL9 is correlated with Id-1/NF-κB signaling axis and suggest that targeting RPL9 could be an attractive option for molecular therapy of colorectal cancer.
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Affiliation(s)
- In Hye Baik
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Guk-Heui Jo
- Myunggok Eye Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Republic of Korea
| | - Daekwan Seo
- Severance Biomedical Science Institute, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Ji Ko
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Chi Heum Cho
- Department of Obstetrics and Gynecology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Min Goo Lee
- Department of Pharmacology and Brain Korea 21 Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yun-Han Lee
- Department of Molecular Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
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TFAP2C promotes lung tumorigenesis and aggressiveness through miR-183- and miR-33a-mediated cell cycle regulation. Oncogene 2016; 36:1585-1596. [PMID: 27593936 DOI: 10.1038/onc.2016.328] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 07/05/2016] [Accepted: 07/26/2016] [Indexed: 01/04/2023]
Abstract
Non-small cell lung cancer (NSCLC) remains one of the leading causes of death worldwide, and thus new molecular targets need to be identified to improve treatment efficacy. Although epidermal growth factor receptor (EGFR)/KRAS mutation-driven lung tumorigenesis is well understood, the mechanism of EGFR/KRAS-independent signal activation remains elusive. Enhanced TFAP2C (transcription factor activating enhancer-binding protein 2C) expression is associated with poor prognosis in some types of cancer patients, but little is known of its relation with the pathogenesis of lung cancer. In the present study, we found that TFAP2C overexpression was associated with cell cycle activation and NSCLC cell tumorigenesis. Interestingly, TFAP2C blocked AKAP12-mediated cyclin D1 inhibition by inducing the overexpression of oncogenic microRNA (miRNA)-183 and simultaneously activated cyclin-dependent kinase 6-mediated cell cycle progression by downregulating tumor-suppressive miRNA-33a. In a mouse xenograft model, TFAP2C promoted lung tumorigenesis and disease aggressiveness via the miR-183 and miR-33a pathways. The study provides a mechanism of mitogenic and oncogenic signaling via two functionally opposed miRNAs and suggests that TFAP2C-induced cell cycle hyperactivation contributes to lung tumorigenesis.
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35
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Park M, Yoon HJ, Kang MC, Kwon J, Lee HW. PTK7 regulates radioresistance through nuclear factor-kappa B in esophageal squamous cell carcinoma. Tumour Biol 2016; 37:14217-14224. [PMID: 27557627 DOI: 10.1007/s13277-016-5288-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 08/07/2016] [Indexed: 02/07/2023] Open
Abstract
Tumor radioresistance is a major reason for decreased efficiency of cancer radiation therapy. Although a number of factors involved in radioresistance have been identified, the molecular mechanisms underlying radioresistance of esophageal squamous cell carcinoma (ESCC) have not been elucidated. In this study, we investigated the role of oncogenic protein tyrosine kinase 7 (PTK7) in the resistance of ESCC to radiation therapy. ESCC cell lines with high PTK7 expression were more refractive to radiation than those with low PTK7 levels. In radioresistant ESCC cells, PTK7 knockdown by specific siRNAs decreased the survival of irradiated cells and increased radiation-induced apoptosis, while in radiosensitive ESCC cells, PTK7 overexpression promoted cell survival and inhibited radiation-induced apoptosis. We hypothesized that PTK7 could regulate the activation of transcription factor NF-kB known for its role in cancer radioresistance. Our results indicated that the inhibition of PTK7 suppressed nuclear translocation of NF-kB subunit p65 induced by radiation, suggesting relevance of PTK7 expression with NF-kB activation in radioresistant ESCC. Furthermore, the levels of inhibitor of apoptosis proteins (IAPs), XIAP, and survivin, encoded by NF-kB-regulated genes, were induced in irradiated radioresistant cells but not in radiosensitive cells, while PTK7 knockdown downregulated IAP expression. Our findings revealed a novel mechanism underlying radioresistance in ESCC, which is associated with PTK7 and NF-kB-dependent apoptosis. These results suggest that the manipulation of PTK7 expression can be instrumental in enhancing ESCC response to radiotherapy. This study demonstrates that PTK7 plays a significant role in ESCC radioresistance via the NF-kB pathway.
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Affiliation(s)
- Misun Park
- Department of Translational Research, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, South Korea.,Department of Radiological and Medico-Oncological Sciences, Korea University of Science and Technology, Daejeon, South Korea
| | - Hyeon-Joon Yoon
- Department of Translational Research, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, South Korea
| | - Moon Chul Kang
- Department of Thoracic Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, South Korea
| | - Junhye Kwon
- Department of Translational Research, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, South Korea.
| | - Hae Won Lee
- Department of Thoracic Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, South Korea.
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36
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Son B, Jun SY, Seo H, Youn H, Yang HJ, Kim W, Kim HK, Kang C, Youn B. Inhibitory effect of traditional oriental medicine-derived monoamine oxidase B inhibitor on radioresistance of non-small cell lung cancer. Sci Rep 2016; 6:21986. [PMID: 26906215 PMCID: PMC4764943 DOI: 10.1038/srep21986] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 02/03/2016] [Indexed: 02/07/2023] Open
Abstract
Increased survival of cancer cells mediated by high levels of ionizing radiation (IR) reduces the effectiveness of radiation therapy for non-small cell lung cancer (NSCLC). In the present study, danshensu which is a selected component of traditional oriental medicine (TOM) compound was found to reduce the radioresistance of NSCLC by inhibiting the nuclear factor-κB (NF-κB) pathway. Of the various TOM compounds reported to inhibit the IR activation of NF-κB, danshensu was chosen as a final candidate based on the results of structural comparisons with human metabolites and monoamine oxidase B (MAOB) was identified as the putative target enzyme. Danshensu decreased the activation of NF-κB by inhibiting MAOB activity in A549 and NCI-H1299 NSCLC cells. Moreover, it suppressed IR-induced epithelial-to-mesenchymal transition, expressions of NF-κB-regulated prosurvival and proinflammatory genes, and in vivo radioresistance of mouse xenograft models. Taken together, this study shows that danshensu significantly reduces MAOB activity and attenuates NF-κB signaling to elicit the radiosensitization of NSCLC.
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Affiliation(s)
- Beomseok Son
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Se Young Jun
- Department of Chemistry, Washington State University, Pullman, Washington, USA
| | - HyunJeong Seo
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - HyeSook Youn
- Nuclear Science Research Institute, Pusan National University, Busan, Republic of Korea
| | - Hee Jung Yang
- Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
| | - Wanyeon Kim
- Nuclear Science Research Institute, Pusan National University, Busan, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
| | - Hyung Kook Kim
- Department of Nanomaterial Engineering and Nanoconvergence Technology, Pusan National University, Miryang, Republic of Korea
| | - ChulHee Kang
- Department of Chemistry, Washington State University, Pullman, Washington, USA
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea.,Department of Chemistry, Washington State University, Pullman, Washington, USA.,Nuclear Science Research Institute, Pusan National University, Busan, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan, Republic of Korea
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37
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Tang Y, Cui Y, Li Z, Jiao Z, Zhang Y, He Y, Chen G, Cheng G, Zhou Q, Wang W, Zhou X, Luo J, Zhang S. Radiation-induced miR-208a increases the proliferation and radioresistance by targeting p21 in human lung cancer cells. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:7. [PMID: 26754670 PMCID: PMC4710038 DOI: 10.1186/s13046-016-0285-3] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 01/06/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Lung cancer has long been the most dangerous malignant tumor among males in both well developed and poorly developed countries. Radiotherapy plays a critical role in the curative management of inoperable non-small cell lung cancer (NSCLC) and is also used as a post-surgical treatment in lung cancer patients. Radioresistance is an important factor that limits the efficacy of radiotherapy for NSCLC patients. Increasing evidence suggests that microRNAs (miRNAs) possess diverse cellular regulatory roles in radiation responses. METHODS In this study, we used miRNA microarray technology to identify serum miRNAs that were differentially expressed before and after radiotherapy in lung cancer patients. We further examined the biological function of miR-208a on cell viability, apoptotic death and cell cycle distribution in human lung cancer cells and explored the probable mechanism. RESULTS Nine miRNAs, including miR-29b-3p, miR-200a-3p, and miR-126-3p were significantly down-regulated, whereas miR-208a was the only miRNA that was up-regulated in the serum of the patients after radiation treatment (P < 0.05). The expression of miR-208a could be induced by X-ray irradiation in lung cancer cells. Forced expression of miR-208a promoted cell proliferation and induced radioresistance via targeting p21 with a corresponding activation of the AKT/mTOR pathway in lung cancer cells, whereas down-regulation of miR-208a resulted in the opposite effects. In addition, down-regulation of miR-208a increased the percentage of cells undergoing apoptosis and inhibited the G1 phase arrest in NSCLC cells. Moreover, miR-208a from the serum exosome fraction of lung cancer patients could shuttle to A549 cells in a time-dependent manner, which was likely to contribute to the subsequent biological effects. CONCLUSIONS The present study provides evidence that miR-208a can affect the proliferation and radiosensitivity of human lung cancer cells by targeting p21 and can be transported by exosomes. Thus, miR-208a may serve as a potential therapeutic target for lung cancer patients.
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Affiliation(s)
- Yiting Tang
- Department of Radiation Oncology, Changzhou Cancer Hospital, Soochow University, Changzhou, 213001, China.
| | - Yayun Cui
- Department of Radiation Oncology, Anhui Provincial Hospital, Hefei, 213001, China.
| | - Zengpeng Li
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, State Oceanic Administration, Xiamen, 361005, China.
| | - Zhuqing Jiao
- Department School of Information Science and Engineering, Changzhou University, Changzhou, 213164, China.
| | - Yong Zhang
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong University, Jinan, 250117, China.
| | - Yan He
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Guangxia Chen
- Department of Gastroenterology, First People's Hospital of Xuzhou, Xuzhou, 221002, China.
| | - Guangxia Cheng
- Department of Gastroenterology, First People's Hospital of Xuzhou, Xuzhou, 221002, China.
| | - Qunyan Zhou
- Department of Gastroenterology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, 214002, China.
| | - Wenjie Wang
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Xifa Zhou
- Department of Radiation Oncology, Changzhou Cancer Hospital, Soochow University, Changzhou, 213001, China.
| | - Judong Luo
- Department of Radiation Oncology, Changzhou Cancer Hospital, Soochow University, Changzhou, 213001, China.
| | - Shuyu Zhang
- School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
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38
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Over-expressed RPL34 promotes malignant proliferation of non-small cell lung cancer cells. Gene 2016; 576:421-8. [DOI: 10.1016/j.gene.2015.10.053] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/21/2015] [Indexed: 01/18/2023]
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39
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Youn H, Son B, Kim W, Jun SY, Lee JS, Lee J, Kang C, Kim J, Youn B. Dissociation of MIF‐rpS3 Complex and Sequential NF‐κB Activation Is Involved in IR‐Induced Metastatic Conversion of NSCLC. J Cell Biochem 2015; 116:2504-16. [DOI: 10.1002/jcb.25195] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Accepted: 04/14/2015] [Indexed: 12/25/2022]
Affiliation(s)
- HyeSook Youn
- Department of Biological SciencesPusan National UniversityBusan609‐735Republic of Korea
- Nuclear Science Research InstitutePusan National UniversityBusan609‐735Republic of Korea
| | - Beomseok Son
- Department of Integrated Biological SciencePusan National UniversityBusan609‐735Republic of Korea
| | - Wanyeon Kim
- Department of Biological SciencesPusan National UniversityBusan609‐735Republic of Korea
- Nuclear Science Research InstitutePusan National UniversityBusan609‐735Republic of Korea
| | - Se Young Jun
- Department of ChemistryWashington State UniversityPullmanWA 99164USA
| | - Jung Sub Lee
- Department of Orthopaedic SurgeryMedical Research InstitutePusan National University School of MedicineBusan602‐739Republic of Korea
| | - Jae‐Myung Lee
- Department of Naval Architecture and Ocean EngineeringPusan National UniversityBusan609‐735Republic of Korea
| | - ChulHee Kang
- Department of ChemistryWashington State UniversityPullmanWA 99164USA
| | - Joon Kim
- Laboratory of BiochemistrySchool of Life Sciences & BiotechnologyKorea UniversitySeoul136‐701Republic of Korea
| | - BuHyun Youn
- Department of Biological SciencesPusan National UniversityBusan609‐735Republic of Korea
- Nuclear Science Research InstitutePusan National UniversityBusan609‐735Republic of Korea
- Department of Integrated Biological SciencePusan National UniversityBusan609‐735Republic of Korea
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40
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Kim W, Youn H, Kang C, Youn B. Inflammation-induced radioresistance is mediated by ROS-dependent inactivation of protein phosphatase 1 in non-small cell lung cancer cells. Apoptosis 2015; 20:1242-52. [DOI: 10.1007/s10495-015-1141-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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41
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Zhou X, Liao WJ, Liao JM, Liao P, Lu H. Ribosomal proteins: functions beyond the ribosome. J Mol Cell Biol 2015; 7:92-104. [PMID: 25735597 DOI: 10.1093/jmcb/mjv014] [Citation(s) in RCA: 427] [Impact Index Per Article: 47.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 12/05/2014] [Indexed: 01/05/2023] Open
Abstract
Although ribosomal proteins are known for playing an essential role in ribosome assembly and protein translation, their ribosome-independent functions have also been greatly appreciated. Over the past decade, more than a dozen of ribosomal proteins have been found to activate the tumor suppressor p53 pathway in response to ribosomal stress. In addition, these ribosomal proteins are involved in various physiological and pathological processes. This review is composed to overview the current understanding of how ribosomal stress provokes the accumulation of ribosome-free ribosomal proteins, as well as the ribosome-independent functions of ribosomal proteins in tumorigenesis, immune signaling, and development. We also propose the potential of applying these pieces of knowledge to the development of ribosomal stress-based cancer therapeutics.
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Affiliation(s)
- Xiang Zhou
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Wen-Juan Liao
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Jun-Ming Liao
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Peng Liao
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Hua Lu
- Department of Biochemistry & Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, New Orleans, LA 70112, USA
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42
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Wang W, Nag S, Zhang X, Wang MH, Wang H, Zhou J, Zhang R. Ribosomal proteins and human diseases: pathogenesis, molecular mechanisms, and therapeutic implications. Med Res Rev 2014; 35:225-85. [PMID: 25164622 DOI: 10.1002/med.21327] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ribosomes are essential components of the protein synthesis machinery. The process of ribosome biogenesis is well organized and tightly regulated. Recent studies have shown that ribosomal proteins (RPs) have extraribosomal functions that are involved in cell proliferation, differentiation, apoptosis, DNA repair, and other cellular processes. The dysfunction of RPs has been linked to the development and progression of hematological, metabolic, and cardiovascular diseases and cancer. Perturbation of ribosome biogenesis results in ribosomal stress, which triggers activation of the p53 signaling pathway through RPs-MDM2 interactions, resulting in p53-dependent cell cycle arrest and apoptosis. RPs also regulate cellular functions through p53-independent mechanisms. We herein review the recent advances in several forefronts of RP research, including the understanding of their biological features and roles in regulating cellular functions, maintaining cell homeostasis, and their involvement in the pathogenesis of human diseases. We also highlight the translational potential of this research for the identification of molecular biomarkers, and in the discovery and development of novel treatments for human diseases.
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Affiliation(s)
- Wei Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas, 79106; Cancer Biology Center, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, Texas, 79106
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Kim E, Youn H, Kwon T, Son B, Kang J, Yang HJ, Seong KM, Kim W, Youn B. PAK1 Tyrosine Phosphorylation Is Required to Induce Epithelial–Mesenchymal Transition and Radioresistance in Lung Cancer Cells. Cancer Res 2014; 74:5520-31. [DOI: 10.1158/0008-5472.can-14-0735] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Graifer D, Malygin A, Zharkov DO, Karpova G. Eukaryotic ribosomal protein S3: A constituent of translational machinery and an extraribosomal player in various cellular processes. Biochimie 2014; 99:8-18. [DOI: 10.1016/j.biochi.2013.11.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 11/05/2013] [Indexed: 01/26/2023]
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45
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Ribosomal alteration-derived signals for cytokine induction in mucosal and systemic inflammation: noncanonical pathways by ribosomal inactivation. Mediators Inflamm 2014; 2014:708193. [PMID: 24523573 PMCID: PMC3910075 DOI: 10.1155/2014/708193] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Accepted: 11/22/2013] [Indexed: 12/30/2022] Open
Abstract
Ribosomal inactivation damages 28S ribosomal RNA by interfering with its functioning during gene translation, leading to stress responses linked to a variety of inflammatory disease processes. Although the primary effect of ribosomal inactivation in cells is the functional inhibition of global protein synthesis, early responsive gene products including proinflammatory cytokines are exclusively induced by toxic stress in highly dividing tissues such as lymphoid tissue and epithelia. In the present study, ribosomal inactivation-related modulation of cytokine production was reviewed in leukocyte and epithelial pathogenesis models to characterize mechanistic evidence of ribosome-derived cytokine induction and its implications for potent therapeutic targets of mucosal and systemic inflammatory illness, particularly those triggered by organellar dysfunctions.
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46
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Role of WWOX and NF-κB in lung cancer progression. TRANSLATIONAL RESPIRATORY MEDICINE 2013; 1:15. [PMID: 27234396 PMCID: PMC4715152 DOI: 10.1186/2213-0802-1-15] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 11/04/2013] [Indexed: 01/28/2023]
Abstract
It is generally agreed that the pro-inflammatory, pro-survival transcription factor NF-κB is a tumor promoter. Tumor necrosis factor alpha (TNF-α or TNF) mediates NF-κB activation. Tumor suppressor WWOX (FOR or WOX1) is a downstream effector of the TNF signaling. Thus, activation of both WWOX (FOR or WOX1) and NF-κB may occur during TNF signaling and/or under stress conditions. Indeed, the first WW domain of WWOX induces the activation of NF-κB-responsive promoter without TNF participation. It appears that WWOX counteracts with NF-κB in regulating cell survival and death. For example, WWOX becomes activated with Tyr33 phosphorylation and relocates together with NF-κB and many transcription factors to the nucleus to cause neuronal death in sciatic nerve-transected rats. While WWOX is frequently lost in lung cancer and many other cancers, NF-κB activation-induced cancer promotion probably requires WWOX-independent signaling networks to induce expression of pro-survival factors. The antagonistic role of WWOX and NF-κB in the regulation of lung cancer progression is discussed.
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47
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Schnetzke U, Fischer M, Spies-Weisshart B, Zirm E, Hochhaus A, Müller JP, Scholl S. The E3 ubiquitin ligase TRAF2 can contribute to TNF-α resistance in FLT3-ITD-positive AML cells. Leuk Res 2013; 37:1557-64. [DOI: 10.1016/j.leukres.2013.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Accepted: 08/05/2013] [Indexed: 01/21/2023]
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48
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Rousalova I, Banerjee S, Sangwan V, Evenson K, McCauley JA, Kratzke R, Vickers SM, Saluja A, D'Cunha J. Minnelide: a novel therapeutic that promotes apoptosis in non-small cell lung carcinoma in vivo. PLoS One 2013; 8:e77411. [PMID: 24143232 PMCID: PMC3797124 DOI: 10.1371/journal.pone.0077411] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 09/10/2013] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Minnelide, a pro-drug of triptolide, has recently emerged as a potent anticancer agent. The precise mechanisms of its cytotoxic effects remain unclear. METHODS Cell viability was studied using CCK8 assay. Cell proliferation was measured real-time on cultured cells using Electric Cell Substrate Impedence Sensing (ECIS). Apoptosis was assayed by Caspase activity on cultured lung cancer cells and TUNEL staining on tissue sections. Expression of pro-survival and anti-apoptotic genes (HSP70, BIRC5, BIRC4, BIRC2, UACA, APAF-1) was estimated by qRTPCR. Effect of Minnelide on proliferative cells in the tissue was estimated by Ki-67 staining of animal tissue sections. RESULTS In this study, we investigated in vitro and in vivo antitumor effects of triptolide/Minnelide in non-small cell lung carcinoma (NSCLC). Triptolide/Minnelide exhibited anti-proliferative effects and induced apoptosis in NSCLC cell lines and NSCLC mouse models. Triptolide/Minnelide significantly down-regulated the expression of pro-survival and anti-apoptotic genes (HSP70, BIRC5, BIRC4, BIRC2, UACA) and up-regulated pro-apoptotic APAF-1 gene, in part, via attenuating the NF-κB signaling activity. CONCLUSION In conclusion, our results provide supporting mechanistic evidence for Minnelide as a potential in NSCLC.
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Affiliation(s)
- Ilona Rousalova
- Division of Basic and Translational Research, Department of Surgery, University of Minnesota, Minneapolis, Minnesota, United States of America
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Fortin Ensign SP, Mathews IT, Symons MH, Berens ME, Tran NL. Implications of Rho GTPase Signaling in Glioma Cell Invasion and Tumor Progression. Front Oncol 2013; 3:241. [PMID: 24109588 PMCID: PMC3790103 DOI: 10.3389/fonc.2013.00241] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 09/02/2013] [Indexed: 01/21/2023] Open
Abstract
Glioblastoma (GB) is the most malignant of primary adult brain tumors, characterized by a highly locally invasive cell population, as well as abundant proliferative cells, neoangiogenesis, and necrosis. Clinical intervention with chemotherapy or radiation may either promote or establish an environment for manifestation of invasive behavior. Understanding the molecular drivers of invasion in the context of glioma progression may be insightful in directing new treatments for patients with GB. Here, we review current knowledge on Rho family GTPases, their aberrant regulation in GB, and their effect on GB cell invasion and tumor progression. Rho GTPases are modulators of cell migration through effects on actin cytoskeleton rearrangement; in non-neoplastic tissue, expression and activation of Rho GTPases are normally under tight regulation. In GB, Rho GTPases are deregulated, often via hyperactivity or overexpression of their activators, Rho GEFs. Downstream effectors of Rho GTPases have been shown to promote invasiveness and, importantly, glioma cell survival. The study of aberrant Rho GTPase signaling in GB is thus an important investigation of cell invasion as well as treatment resistance and disease progression.
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Affiliation(s)
- Shannon Patricia Fortin Ensign
- Cancer and Cell Biology Division, Translational Genomics Research Institute , Phoenix, AZ , USA ; Cancer Biology Graduate Interdisciplinary Program, University of Arizona , Tucson, AZ , USA
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Fortin Ensign SP, Mathews IT, Eschbacher JM, Loftus JC, Symons MH, Tran NL. The Src homology 3 domain-containing guanine nucleotide exchange factor is overexpressed in high-grade gliomas and promotes tumor necrosis factor-like weak inducer of apoptosis-fibroblast growth factor-inducible 14-induced cell migration and invasion via tumor necrosis factor receptor-associated factor 2. J Biol Chem 2013; 288:21887-97. [PMID: 23775076 DOI: 10.1074/jbc.m113.468686] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Glioblastoma (GB) is the highest grade of primary adult brain tumors, characterized by a poorly defined and highly invasive cell population. Importantly, these invading cells are attributed with having a decreased sensitivity to radiation and chemotherapy. TNF-like weak inducer of apoptosis (TWEAK)-Fn14 ligand-receptor signaling is one mechanism in GB that promotes cell invasiveness and survival and is dependent upon the activity of multiple Rho GTPases, including Rac1. Here we report that Src homology 3 domain-containing guanine nucleotide exchange factor (SGEF), a RhoG-specific guanine nucleotide exchange factor, is overexpressed in GB tumors and promotes TWEAK-Fn14-mediated glioma invasion. Importantly, levels of SGEF expression in GB tumors inversely correlate with patient survival. SGEF mRNA expression is increased in GB cells at the invasive rim relative to those in the tumor core, and knockdown of SGEF expression by shRNA decreases glioma cell migration in vitro and invasion ex vivo. Furthermore, we showed that, upon TWEAK stimulation, SGEF is recruited to the Fn14 cytoplasmic tail via TRAF2. Mutation of the Fn14-TRAF domain site or depletion of TNF receptor-associated factor 2 (TRAF2) expression by siRNA oligonucleotides blocked SGEF recruitment to Fn14 and inhibited SGEF activity and subsequent GB cell migration. We also showed that knockdown of either SGEF or RhoG diminished TWEAK activation of Rac1 and subsequent lamellipodia formation. Together, these results indicate that SGEF-RhoG is an important downstream regulator of TWEAK-Fn14-driven GB cell migration and invasion.
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Affiliation(s)
- Shannon P Fortin Ensign
- Cancer and Cell Biology Division, The Translational Genomics Research Institute, Phoenix, Arizona 85004, USA
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