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Wei N, Burnett J, Crocker DL, Huang Y, Li S, Wipf P, Chu E, Schmitz JC. Quassinoid analogs exert potent antitumor activity via reversible protein biosynthesis inhibition in human colorectal cancer. Biochem Pharmacol 2023; 212:115564. [PMID: 37116665 PMCID: PMC11225567 DOI: 10.1016/j.bcp.2023.115564] [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: 01/30/2023] [Revised: 04/05/2023] [Accepted: 04/14/2023] [Indexed: 04/30/2023]
Abstract
Cellular protein synthesis is accelerated in human colorectal cancer (CRC), and high expression of protein synthesis regulators in CRC patients is associated with poor prognosis. Thus, inhibition of protein synthesis may be an effective therapeutic strategy for CRC. We previously demonstrated that the quassinoid bruceantinol (BOL) had antitumor activity against CRC. Herein, potent tumor growth suppression (>80%) and STAT3 inhibition was observed in two different mouse models following BOL administration. Loss of body and spleen weight was observed but was eliminated upon nanoparticle encapsulation while maintaining strong antitumor activity. STAT3 siRNA knockdown exhibited modest suppression of cell proliferation. Surprisingly, STAT3 inhibition using a PROTAC degrader (SD-36) had little effect on cancer cell proliferation suggesting the possibility of additional mechanism(s) of action for quassinoids. BOL-resistant (BR) cell lines, HCT116BR and HCA7BR, were equally sensitive to standard CRC therapeutic agents and known STAT3 inhibitors but resistant to homoharringtonine (HHT), a known protein synthesis inhibitor. The ability of quassinoids to inhibit protein synthesis was dependent on the structure of the C15 sidechain. Of note, BOL did not inhibit protein synthesis in normal human colon epithelial cells whereas HHT and napabucasin remained effective in these normal cells. Novel quassinoids were designed, synthesized, and evaluated in pre-clinical CRC models. Treatment with the most potent analog, 5c, resulted in significant inhibition of cell proliferation and protein synthesis at nanomolar concentrations. These quassinoid analogs may represent a novel class of protein synthesis inhibitors for the treatment of human CRC.
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Affiliation(s)
- Ning Wei
- Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, PA, United States; Montefiore Einstein Cancer Center, Cancer Therapeutics Program, Albert Einstein College of Medicine, Bronx, NY, United States.
| | - James Burnett
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Desirae L Crocker
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Yixian Huang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Song Li
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, United States
| | - Peter Wipf
- Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, PA, United States; Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Edward Chu
- Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, PA, United States; Montefiore Einstein Cancer Center, Cancer Therapeutics Program, Albert Einstein College of Medicine, Bronx, NY, United States
| | - John C Schmitz
- Division of Hematology-Oncology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Cancer Therapeutics Program, UPMC Hillman Cancer Center, Pittsburgh, PA, United States.
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Inflammation- and Metastasis-Related Proteins Expression Changes in Early Stages in Tumor and Non-Tumor Adjacent Tissues of Colorectal Cancer Samples. Cancers (Basel) 2022; 14:cancers14184487. [PMID: 36139645 PMCID: PMC9497293 DOI: 10.3390/cancers14184487] [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: 08/04/2022] [Revised: 09/05/2022] [Accepted: 09/14/2022] [Indexed: 11/17/2022] Open
Abstract
Simple Summary Non-tumor adjacent tissue plays a key role in colorectal cancer development, as well as chronic inflammation, but their role has not yet been dilucidated. In addition, inflammation is a process which is related to epithelial-mesenchymal transition and metastasis, but their changes across the different colorectal cancer stages are not fully studied. Understanding how these processes participate in all colorectal cancer phases can be key to a better understanding of the disease. Abstract Chronic inflammation can induce malignant cell transformation, having an important role in all colorectal cancer (CRC) phases. Non-tumor adjacent tissue plays an important role in tumor progression, but its implication in CRC has not yet been fully elucidated. The aim was to analyze the expression of inflammatory, epithelial-mesenchymal transition (EMT), and metastasis-related proteins in both tumor and non-tumor adjacent tissues from CRC patients by western blot. Tumor tissue presented an increase in metastasis and EMT-related proteins compared to non-tumor adjacent tissue, especially in stage II. Tumor tissue stage II also presented an increase in inflammatory-related proteins compared to other stages, which was also seen in non-tumor adjacent tissue stage II. Additionally, the relapse-free survival study of Vimentin and VEGF-B expression levels in stage II patients showed that the higher the expression levels of each protein, the lower 10-year relapse-free survival. These could suggest that some metastasis-related signalling pathways may be activated in stage II in tumor tissue, accompanied by an increase in inflammation. Furthermore, non-tumor adjacent tissue presented an increase of the inflammatory status that could be the basis for future tumor progression. In conclusion, these proteins could be useful as biomarkers of diagnosis for CRC at early stages.
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An Axis between the Long Non-Coding RNA HOXA11-AS and NQOs Enhances Metastatic Ability in Oral Squamous Cell Carcinoma. Int J Mol Sci 2022; 23:ijms231810704. [PMID: 36142607 PMCID: PMC9506332 DOI: 10.3390/ijms231810704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 12/03/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) play critical roles in human cancers. HOXA11 anti-sense RNA (HOXA11-AS) is an lncRNA belonging to the homeobox (HOX) gene cluster that promotes liver metastasis in human colon cancer. However, its role and mechanism of action in human oral squamous cell carcinoma (OSCC) are unclear. In this study, we investigated HOXA11-AS expression and function in human OSCC tissues and cell lines, as well as a mouse model of OSCC. Our analyses showed that HOXA11-AS expression in human OSCC cases correlates with lymph node metastasis, nicotinamide adenine dinucleotide (NAD)(P)H: quinone oxidoreductase 1 (NQO1) upregulation, and dihydronicotinamide riboside (NRH): quinone oxidoreductase 2 (NQO2) downregulation. Using the human OSCC cell lines HSC3 and HSC4, we demonstrate that HOXA11-AS promotes NQO1 expression by sponging microRNA-494. In contrast, HOXA11-AS recruits zeste homolog 2 (EZH2) to the NQO2 promoter to suppress its expression via the trimethylation of H3K27. The upregulation of NQO1 enzymatic activity by HOXA11-AS results in the consumption of flavin adenine dinucleotide (FAD), which reduces FAD-requiring glyceraldehyde-3-phosphate dehydrogenase (GAPDH) activity and suppresses glycolysis. However, our analyses show that lactic acid fermentation levels are preserved by glutaminolysis due to increased malic enzyme-1 expression, promoting enhanced proliferation, invasion, survival, and drug resistance. In contrast, suppression of NQO2 expression reduces the consumption of NRH via NQO2 enzymatic activity and increases NAD levels, which promotes enhanced stemness and metastatic potential. In mouse tumor models, knockdown of HOXA11-AS markedly suppressed tumor growth and lung metastasis. From these findings, targeting HOXA11-AS may strongly suppress high-grade OSCC by regulating both NQO1 and NQO2.
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Tang Q, Hu X, Guo Q, Shi Y, Liu L, Ying G. Discovery and Validation of a Novel Metastasis-Related lncRNA Prognostic Signature for Colorectal Cancer. Front Genet 2022; 13:704988. [PMID: 35664303 PMCID: PMC9162157 DOI: 10.3389/fgene.2022.704988] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Cancer metastasis-related chemoresistance and tumour progression are the leading causes of death among CRC patients. Therefore, it is urgent to identify reliable novel biomarkers for predicting the metastasis of CRC. Methods: The gene expression and corresponding clinical data of CRC patients were downloaded from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. Univariate and multivariate analyses were performed to identify prognostic metastasis-related lncRNAs. Nomograms were constructed, and the predictive accuracy of the nomogram model was assessed by ROC curve analysis. Then, the R package “pRRophetic” was used to predict chemotherapeutic response in CRC patients. In addition, the CIBERSORT database was introduced to evaluate tumour infiltrating immune cells between the high—and low-risk groups. The potential roles of SNHG7 and ZEB1-AS1 in CRC cell lines were further confirmed by in vitro experiments. Results: An 8-lncRNA (LINC00261, RP1-170O19.17, CAPN10-AS1, SNHG7, ZEB1-AS1, U47924.27, NIFK-AS1, and LINC00925) signature was constructed for CRC prognosis prediction, which stratified patients into two risk groups. Kaplan-Meier analysis revealed that patients in the higher-risk group had a lower survival probability than those in the lower-risk group [p < 0.001 (TCGA); P = 0.044 (GSE39582); and P = 0.0078 (GSE29621)] The AUCs of 1-, 3-, and 5-year survival were 0.678, 0.669, and 0.72 in TCGA; 0.58, 0.55, and 0.56 in GSE39582; and 0.75, 0.54, and 0.56 in GSE29621, respectively. In addition, the risk score was an independent risk factor for CRC patients. Nomograms were constructed, and the predictive accuracy was assessed by ROC curve analysis. This signature could effectively predict the immune status and chemotherapy response in CRC patients. Moreover, SNHG7 and ZEB1-AS1 depletion significantly suppressed the colony formation, migration, and invasion of CRC cells in vitro. Conclusion: We constructed a signature that could predict the metastasis of CRC and provide certain theoretical guidance for novel therapeutic approaches for CRC.
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Affiliation(s)
- Qiang Tang
- Laboratory of Cancer Cell Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Xin Hu
- Department of Epidemiology and Biostatistics, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin’s Clinical Research Center for Cancer, Key Laboratory of Molecular Cancer Epidemiology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Qiong Guo
- Laboratory of Cancer Cell Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yueyue Shi
- Laboratory of Cancer Cell Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Liming Liu
- Laboratory of Cancer Cell Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- *Correspondence: Liming Liu, ; Guoguang Ying,
| | - Guoguang Ying
- Laboratory of Cancer Cell Biology, National Clinical Research Center for Cancer, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin’s Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
- *Correspondence: Liming Liu, ; Guoguang Ying,
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Almaimani RA, Aslam A, Ahmad J, El-Readi MZ, El-Boshy ME, Abdelghany AH, Idris S, Alhadrami M, Althubiti M, Almasmoum HA, Ghaith MM, Elzubeir ME, Eid SY, Refaat B. In Vivo and In Vitro Enhanced Tumoricidal Effects of Metformin, Active Vitamin D 3, and 5-Fluorouracil Triple Therapy against Colon Cancer by Modulating the PI3K/Akt/PTEN/mTOR Network. Cancers (Basel) 2022; 14:1538. [PMID: 35326689 PMCID: PMC8946120 DOI: 10.3390/cancers14061538] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/10/2022] [Accepted: 03/14/2022] [Indexed: 12/21/2022] Open
Abstract
Chemoresistance to 5-fluorouracil (5-FU) is common during colorectal cancer (CRC) treatment. This study measured the chemotherapeutic effects of 5-FU, active vitamin D3 (VD3), and/or metformin single/dual/triple regimens as complementary/alternative therapies. Ninety male mice were divided into: negative and positive (PC) controls, and 5-FU, VD3, Met, 5-FU/VD3, 5-FU/Met, VD3/Met, and 5-FU/VD3/Met groups. Treatments lasted four weeks following CRC induction by azoxymethane. Similar regimens were also applied in the SW480 and SW620 CRC cell lines. The PC mice had abundant tumours, markedly elevated proliferation markers (survivin/CCND1) and PI3K/Akt/mTOR, and reduced p21/PTEN/cytochrome C/caspase-3 and apoptosis. All therapies reduced tumour numbers, with 5-FU/VD3/Met being the most efficacious regimen. All protocols decreased cell proliferation markers, inhibited PI3K/Akt/mTOR molecules, and increased proapoptotic molecules with an apoptosis index, and 5-FU/VD3/Met revealed the strongest effects. In vitro, all therapies equally induced G1 phase arrest in SW480 cells, whereas metformin-alone showed maximal SW620 cell numbers in the G0/G1 phase. 5-FU/Met co-therapy also showed the highest apoptotic SW480 cell numbers (13%), whilst 5-FU/VD3/Met disclosed the lowest viable SW620 cell percentages (81%). Moreover, 5-FU/VD3/Met revealed maximal inhibitions of cell cycle inducers (CCND1/CCND3), cell survival (BCL2), and the PI3K/Akt/mTOR molecules alongside the highest expression of cell cycle inhibitors (p21/p27), proapoptotic markers (BAX/cytochrome C/caspase-3), and PTEN in both cell lines. In conclusion, metformin monotherapy was superior to VD3, whereas the 5-FU/Met protocol showed better anticancer effects relative to the other dual therapies. However, the 5-FU/VD3/Met approach displayed the best in vivo and in vitro tumoricidal effects related to cell cycle arrest and apoptosis, justifiably by enhanced modulations of the PI3K/PTEN/Akt/mTOR pathway.
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Affiliation(s)
- Riyad Adnan Almaimani
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia; (R.A.A.); (M.Z.E.-R.); (M.A.); (M.E.E.); (S.Y.E.)
| | - Akhmed Aslam
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
| | - Jawwad Ahmad
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
| | - Mahmoud Zaki El-Readi
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia; (R.A.A.); (M.Z.E.-R.); (M.A.); (M.E.E.); (S.Y.E.)
- Biochemistry Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
| | - Mohamed E. El-Boshy
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
- Clinical Pathology Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Abdelghany H. Abdelghany
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
- Department of Anatomy, Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt
| | - Shakir Idris
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
| | - Mai Alhadrami
- Department of Pathology, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia;
| | - Mohammad Althubiti
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia; (R.A.A.); (M.Z.E.-R.); (M.A.); (M.E.E.); (S.Y.E.)
| | - Hussain A. Almasmoum
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
| | - Mazen M. Ghaith
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
| | - Mohamed E. Elzubeir
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia; (R.A.A.); (M.Z.E.-R.); (M.A.); (M.E.E.); (S.Y.E.)
| | - Safaa Yehia Eid
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al Abdeyah, Makkah 24381, Saudi Arabia; (R.A.A.); (M.Z.E.-R.); (M.A.); (M.E.E.); (S.Y.E.)
| | - Bassem Refaat
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al Abdeyah, P.O. Box 7607, Makkah 24381, Saudi Arabia; (A.A.); (J.A.); (M.E.E.-B.); (A.H.A.); (S.I.); (H.A.A.); (M.M.G.)
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Zhang W, Yang S, Chen D, Yuwen D, Zhang J, Wei X, Han X, Guan X. SOX2-OT induced by PAI-1 promotes triple-negative breast cancer cells metastasis by sponging miR-942-5p and activating PI3K/Akt signaling. Cell Mol Life Sci 2022; 79:59. [PMID: 34997317 PMCID: PMC11072091 DOI: 10.1007/s00018-021-04120-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/22/2021] [Accepted: 12/27/2021] [Indexed: 12/14/2022]
Abstract
Triple-negative breast cancer (TNBC) has an aggressive biological behavior and poor outcome. Our published study showed that PAI-1 could induce the migration and metastasis of TNBC cells. However, the underlying mechanism by which PAI-1 regulates TNBC metastasis has not been addressed. Here, we demonstrated that PAI-1 is high expressed in TNBC and promotes TNBC cells tumorigenesis. Using microarray analysis of lncRNA expression profiles, we identified a lncRNA SOX2-OT, which is induced by PAI-1 and could function as an oncogenic lncRNA in TNBC. Mechanistic analysis demonstrated that SOX2-OT acts as a molecular sponge for miR-942-5p to regulate the expression of PIK3CA, ultimately leading to activating PI3K/Akt signaling pathway and promoting TNBC metastasis. Taken together, our findings suggest that SOX2-OT regulates PAI-1-induced TNBC cell metastasis through miR-942-5p/PIK3CA signaling and illustrate the great potential of developing new SOX2-OT-targeting therapy for TNBC patients.
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Affiliation(s)
- Wenwen Zhang
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, China.
| | - Shuofei Yang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Datian Chen
- Department of Oncology, Haimen People's Hospital, Nantong University, Nantong, China
| | - Daolu Yuwen
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, China
| | - Juan Zhang
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, China
| | - Xiaowei Wei
- Department of Oncology, Nanjing First Hospital, Nanjing Medical University, 68 Changle Road, Nanjing, 210006, China
| | - Xin Han
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Xiaoxiang Guan
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China.
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Valentini S, Marchioretti C, Bisio A, Rossi A, Zaccara S, Romanel A, Inga A. TranSNPs: A class of functional SNPs affecting mRNA translation potential revealed by fraction-based allelic imbalance. iScience 2021; 24:103531. [PMID: 34917903 PMCID: PMC8666669 DOI: 10.1016/j.isci.2021.103531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/27/2021] [Accepted: 11/23/2021] [Indexed: 12/23/2022] Open
Abstract
Few studies have explored the association between SNPs and alterations in mRNA translation potential. We developed an approach to identify SNPs that can mark allele-specific protein expression levels and could represent sources of inter-individual variation in disease risk. Using MCF7 cells under different treatments, we performed polysomal profiling followed by RNA sequencing of total or polysome-associated mRNA fractions and designed a computational approach to identify SNPs showing a significant change in the allelic balance between total and polysomal mRNA fractions. We identified 147 SNPs, 39 of which located in UTRs. Allele-specific differences at the translation level were confirmed in transfected MCF7 cells by reporter assays. Exploiting breast cancer data from TCGA we identified UTR SNPs demonstrating distinct prognosis features and altering binding sites of RNA-binding proteins. Our approach produced a catalog of tranSNPs, a class of functional SNPs associated with allele-specific translation and potentially endowed with prognostic value for disease risk.
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Affiliation(s)
- Samuel Valentini
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Caterina Marchioretti
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
- Department of Biomedical Sciences (DBS), University of Padova, 35131 Padova, Italy
| | - Alessandra Bisio
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Annalisa Rossi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Sara Zaccara
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
- Weill Medical College, Cornell University, New York 10065, NY, USA
| | - Alessandro Romanel
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
| | - Alberto Inga
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38123 Trento, Italy
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Fernandes MT, Yassuda V, Bragança J, Link W, Ferreira BI, De Sousa-Coelho AL. Tribbles Gene Expression Profiles in Colorectal Cancer. GASTROINTESTINAL DISORDERS 2021; 3:218-236. [DOI: https:/doi.org/10.3390/gidisord3040021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death due to cancer in the world. Therefore, the identification of novel druggable targets is urgently needed. Tribbles proteins belong to a pseudokinase family, previously recognized in CRC as oncogenes and potential therapeutic targets. Here, we analyzed the expression of TRIB1, TRIB2, and TRIB3 simultaneously in 33 data sets from CRC based on available GEO profiles. We show that all three Tribbles genes are overrepresented in CRC cell lines and primary tumors, though depending on specific features of the CRC samples. Higher expression of TRIB2 in the tumor microenvironment and TRIB3 overexpression in an early stage of CRC development, unveil a potential and unexplored role for these proteins in the context of CRC. Differential Tribbles expression was also explored in diverse cellular experimental conditions where either genetic or pharmacological approaches were used, providing novel hints for future research. This comprehensive bioinformatic analysis provides new insights into Tribbles gene expression and transcript regulation in CRC.
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Tribbles Gene Expression Profiles in Colorectal Cancer. GASTROINTESTINAL DISORDERS 2021. [DOI: 10.3390/gidisord3040021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer and the second leading cause of death due to cancer in the world. Therefore, the identification of novel druggable targets is urgently needed. Tribbles proteins belong to a pseudokinase family, previously recognized in CRC as oncogenes and potential therapeutic targets. Here, we analyzed the expression of TRIB1, TRIB2, and TRIB3 simultaneously in 33 data sets from CRC based on available GEO profiles. We show that all three Tribbles genes are overrepresented in CRC cell lines and primary tumors, though depending on specific features of the CRC samples. Higher expression of TRIB2 in the tumor microenvironment and TRIB3 overexpression in an early stage of CRC development, unveil a potential and unexplored role for these proteins in the context of CRC. Differential Tribbles expression was also explored in diverse cellular experimental conditions where either genetic or pharmacological approaches were used, providing novel hints for future research. This comprehensive bioinformatic analysis provides new insights into Tribbles gene expression and transcript regulation in CRC.
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Proteomic Research on the Antitumor Properties of Medicinal Mushrooms. Molecules 2021; 26:molecules26216708. [PMID: 34771120 PMCID: PMC8588050 DOI: 10.3390/molecules26216708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/22/2022] Open
Abstract
Medicinal mushrooms are increasingly being recognized as an important therapeutic modality in complementary oncology. Until now, more than 800 mushroom species have been known to possess significant pharmacological properties, of which antitumor and immunomodulatory properties have been the most researched. Besides a number of medicinal mushroom preparations being used as dietary supplements and nutraceuticals, several isolates from mushrooms have been used as official antitumor drugs in clinical settings for several decades. Various proteomic approaches allow for the identification of a large number of differentially regulated proteins serendipitously, thereby providing an important platform for a discovery of new potential therapeutic targets and approaches as well as biomarkers of malignant disease. This review is focused on the current state of proteomic research into antitumor mechanisms of some of the most researched medicinal mushroom species, including Phellinus linteus, Ganoderma lucidum, Auricularia auricula, Agrocybe aegerita, Grifola frondosa, and Lentinus edodes, as whole body extracts or various isolates, as well as of complex extract mixtures.
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Bosco B, Rossi A, Rizzotto D, Hamadou MH, Bisio A, Giorgetta S, Perzolli A, Bonollo F, Gaucherot A, Catez F, Diaz JJ, Dassi E, Inga A. DHX30 Coordinates Cytoplasmic Translation and Mitochondrial Function Contributing to Cancer Cell Survival. Cancers (Basel) 2021; 13:4412. [PMID: 34503222 PMCID: PMC8430983 DOI: 10.3390/cancers13174412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 02/06/2023] Open
Abstract
DHX30 was recently implicated in the translation control of mRNAs involved in p53-dependent apoptosis. Here, we show that DHX30 exhibits a more general function by integrating the activities of its cytoplasmic isoform and of the more abundant mitochondrial one. The depletion of both DHX30 isoforms in HCT116 cells leads to constitutive changes in polysome-associated mRNAs, enhancing the translation of mRNAs coding for cytoplasmic ribosomal proteins while reducing the translational efficiency of the nuclear-encoded mitoribosome mRNAs. Furthermore, the depletion of both DHX30 isoforms leads to higher global translation but slower proliferation and lower mitochondrial energy metabolism. Isoform-specific silencing supports a role for cytoplasmic DHX30 in modulating global translation. The impact on translation and proliferation was confirmed in U2OS and MCF7 cells. Exploiting RIP, eCLIP, and gene expression data, we identified fourteen mitoribosome transcripts we propose as direct DHX30 targets that can be used to explore the prognostic value of this mechanism in cancer. We propose that DHX30 contributes to cell homeostasis by coordinating ribosome biogenesis, global translation, and mitochondrial metabolism. Targeting DHX30 could, thus, expose a vulnerability in cancer cells.
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Affiliation(s)
- Bartolomeo Bosco
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Annalisa Rossi
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Dario Rizzotto
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Meriem Hadjer Hamadou
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Alessandra Bisio
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Sebastiano Giorgetta
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Alicia Perzolli
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Francesco Bonollo
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Angeline Gaucherot
- Inserm U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Université de Lyon 1, Centre Léon Bérard, F-69008 Lyon, France; (A.G.); (F.C.); (J.-J.D.)
| | - Frédéric Catez
- Inserm U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Université de Lyon 1, Centre Léon Bérard, F-69008 Lyon, France; (A.G.); (F.C.); (J.-J.D.)
| | - Jean-Jacques Diaz
- Inserm U1052, CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, Université de Lyon 1, Centre Léon Bérard, F-69008 Lyon, France; (A.G.); (F.C.); (J.-J.D.)
| | - Erik Dassi
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
| | - Alberto Inga
- Department of Cellular, Computational and Integrative Biology, CIBIO, University of Trento, Via Sommarive 9, 38123 Trento, Italy; (B.B.); (A.R.); (D.R.); (M.H.H.); (A.B.); (S.G.); (A.P.); (F.B.)
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12
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Rizzotto D, Zaccara S, Rossi A, Galbraith MD, Andrysik Z, Pandey A, Sullivan KD, Quattrone A, Espinosa JM, Dassi E, Inga A. Nutlin-Induced Apoptosis Is Specified by a Translation Program Regulated by PCBP2 and DHX30. Cell Rep 2021; 30:4355-4369.e6. [PMID: 32234473 DOI: 10.1016/j.celrep.2020.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/25/2020] [Accepted: 03/04/2020] [Indexed: 12/12/2022] Open
Abstract
Activation of p53 by the small molecule Nutlin can result in a combination of cell cycle arrest and apoptosis. The relative strength of these events is difficult to predict by classical gene expression analysis, leaving uncertainty as to the therapeutic benefits. In this study, we report a translational control mechanism shaping p53-dependent apoptosis. Using polysome profiling, we establish Nutlin-induced apoptosis to associate with the enhanced translation of mRNAs carrying multiple copies of an identified 3' UTR CG-rich motif mediating p53-dependent death (CGPD-motif). We identify PCBP2 and DHX30 as CGPD-motif interactors. We find that in cells undergoing persistent cell cycle arrest in response to Nutlin, CGPD-motif mRNAs are repressed by the PCBP2-dependent binding of DHX30 to the motif. Upon DHX30 depletion in these cells, the translation of CGPD-motif mRNAs increases, and the response to Nutlin shifts toward apoptosis. Instead, DHX30 inducible overexpression in SJSA1 cells leads to decreased translation of CGPD-motif mRNAs.
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Affiliation(s)
- Dario Rizzotto
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Sara Zaccara
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Annalisa Rossi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Matthew D Galbraith
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Boulder, CO 80203, USA
| | - Zdenek Andrysik
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Boulder, CO 80203, USA
| | - Ahwan Pandey
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Boulder, CO 80203, USA
| | - Kelly D Sullivan
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Boulder, CO 80203, USA
| | - Alessandro Quattrone
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy
| | - Joaquín M Espinosa
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Boulder, CO 80203, USA
| | - Erik Dassi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy.
| | - Alberto Inga
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, via Sommarive 9, 38123 Trento, Italy.
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Cysteine and Folate Metabolism Are Targetable Vulnerabilities of Metastatic Colorectal Cancer. Cancers (Basel) 2021; 13:cancers13030425. [PMID: 33498690 PMCID: PMC7866204 DOI: 10.3390/cancers13030425] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/09/2021] [Accepted: 01/20/2021] [Indexed: 01/17/2023] Open
Abstract
Simple Summary In this work, we studied the metabolic reprogramming of same-patient-derived cell lines with increasing metastatic potential to develop new therapeutic approaches against metastatic colorectal cancer. Using a novel systems biology approach to integrate multiple layers of omics data, we predicted and validated that cystine uptake and folate metabolism, two key pathways related to redox metabolism, are potential targets against metastatic colorectal cancer. Our findings indicate that metastatic cell lines are selectively dependent on redox homeostasis, paving the way for new targeted therapies. Abstract With most cancer-related deaths resulting from metastasis, the development of new therapeutic approaches against metastatic colorectal cancer (mCRC) is essential to increasing patient survival. The metabolic adaptations that support mCRC remain undefined and their elucidation is crucial to identify potential therapeutic targets. Here, we employed a strategy for the rational identification of targetable metabolic vulnerabilities. This strategy involved first a thorough metabolic characterisation of same-patient-derived cell lines from primary colon adenocarcinoma (SW480), its lymph node metastasis (SW620) and a liver metastatic derivative (SW620-LiM2), and second, using a novel multi-omics integration workflow, identification of metabolic vulnerabilities specific to the metastatic cell lines. We discovered that the metastatic cell lines are selectively vulnerable to the inhibition of cystine import and folate metabolism, two key pathways in redox homeostasis. Specifically, we identified the system xCT and MTHFD1 genes as potential therapeutic targets, both individually and combined, for combating mCRC.
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Li T, Hui W, Halike H, Gao F. RNA Binding Protein-Based Model for Prognostic Prediction of Colorectal Cancer. Technol Cancer Res Treat 2021; 20:15330338211019504. [PMID: 34080453 PMCID: PMC8182183 DOI: 10.1177/15330338211019504] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a kind of gastrointestinal tumor with serious high morbidity and mortality. Several reports have implicated the disorder of RNA-binding proteins (RBPs) in plenty of tumors, associating it to tumorigenesis and disease progression. The study is intended to construct novel prognostic biomarkers associated with CRC patients. METHODS Data of gene expression was acquired from the TCGA database, prognosis-related genes were selected. Besides, we analyzed GO and KEGG pathways. Univariate and multivariate Cox analyses were performed to generate a prognostic-related gene signature, which was evaluated by the Kaplan-Meier (K-M) and the Receiver Operating Characteristic (ROC) curve. The independent prognostic factor was established by survival analysis. GSE38832 dataset was used to validate the signature. Finally, expression of 8 genes was further confirmed by qRT-PCR in SW480 and SW620 cell lines. RESULTS We obtained 224 differentially expressed RBPS in total, of which 78 were downregulated and 146 were upregulated. Univariate COX analysis was conducted in the TCGA cohort to select 13 RBPs with P < 0.005, stepwise multivariate COX regression analysis was used to construct an 8-RBP signature (TERT, PPARGC1A, BRCA1, CELF4, TDRD7, LUZP4, PNLDC1, ZC3H12C). Based on the model, systematic analysis illustrated that a high risk score was obviously connected to a poor prognosis. The prognostic value of the risk score was validated in GSE38832 dataset, indicating that the risk model was accurate and effective. The prognostic signature-based risk score was identified as an independent prognostic indicator for CRC. The expression results of qRT-PCR were consistent with the results of differential expression analysis. CONCLUSIONS The eight-RBP signature can predict the survival of CRC patients and potentially act as CRC prognostic biomarker.
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Affiliation(s)
- Ting Li
- Department of Gastroenterology, People’s Hospital of Xinjiang Uygur
Autonomous Region, Urumqi, Xinjiang Province, China
| | - Wenjia Hui
- Department of Gastroenterology, People’s Hospital of Xinjiang Uygur
Autonomous Region, Urumqi, Xinjiang Province, China
| | - Halina Halike
- Department of Gastroenterology, People’s Hospital of Xinjiang Uygur
Autonomous Region, Urumqi, Xinjiang Province, China
| | - Feng Gao
- Department of Gastroenterology, People’s Hospital of Xinjiang Uygur
Autonomous Region, Urumqi, Xinjiang Province, China
- Feng Gao, PhD, Department of
Gastroenterology, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi
830000, Xinjiang Province, China.
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15
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Jakopovic B, Horvatić A, Klobučar M, Gelemanović A, Grbčić P, Oršolić N, Jakopovich I, Kraljević Pavelić S. Treatment With Medicinal Mushroom Extract Mixture Inhibits Translation and Reprograms Metabolism in Advanced Colorectal Cancer Animal Model as Evidenced by Tandem Mass Tags Proteomics Analysis. Front Pharmacol 2020; 11:1202. [PMID: 32973493 PMCID: PMC7472604 DOI: 10.3389/fphar.2020.01202] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/23/2020] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancer (CRC) is the third most frequent cancer type in both males and females, with about 35% of patients being diagnosed in stage IV metastatic disease. Despite advancements in treatment, life expectancy in patients with metastatic disease is still not satisfying. Due to frequent drug resistance during conventional and targeted cancer treatments, the development and testing of multi-target therapies is an important research field. Medicinal mushrooms specific isolated compounds as well as complex extract mixtures have been studied in depth, and many mushroom species have been proven to be non-toxic multi-target inhibitors of specific oncogenic pathways, as well as potent immunomodulators. In this study, we have performed a tandem mass tags qualitative and quantitative proteomic analyses of CT26.WT colon cancer tumor tissues from Balb/c mice treated with the studied medicinal mushroom extract mixture, with or without 5-fluorouracil. Besides significantly improved survival, obtained results reveal that Agarikon.1 alone, and in combination with 5-fluorouracil exert their anticancer effects by affecting several fundamental processes important in CRC progression. Bioinformatic analysis of up- and downregulated proteins revealed that ribosomal biogenesis and translation is downregulated in treatment groups, while the unfolded protein response (UPR), lipid metabolism and tricarboxylic acid cycle (TCA) are upregulated. Moreover, we found that many known clinical biomarkers and protein clusters important in CRC progression and prognosis are affected, which are a good basis for an expanded translational study of the herein presented treatment.
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Affiliation(s)
| | - Anita Horvatić
- Proteomics Laboratory, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - Marko Klobučar
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
| | | | - Petra Grbčić
- Department of Biotechnology, University of Rijeka, Rijeka, Croatia
| | - Nada Oršolić
- Division of Animal Physiology, Faculty of Science, University of Zagreb, Zagreb, Croatia
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16
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Ye C, Qi L, Li X, Wang J, Yu J, Zhou B, Guo C, Chen J, Zheng S. Targeting the NAD + salvage pathway suppresses APC mutation-driven colorectal cancer growth and Wnt/β-catenin signaling via increasing Axin level. Cell Commun Signal 2020; 18:16. [PMID: 32005247 PMCID: PMC6995173 DOI: 10.1186/s12964-020-0513-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 01/17/2020] [Indexed: 02/05/2023] Open
Abstract
Background The role and mechanism of the nicotinamide adenine dinucleotide (NAD+) salvage pathway in cancer cell proliferation is poorly understood. Nicotinamide phosphoribosyltransferase (NAMPT), which converts nicotinamide into NAD+, is the rate-limiting enzyme in the NAD+ salvage pathway. Here, we assessed the role of NAMPT in the proliferation of colorectal cancer. Methods Real-time PCR, immunohistochemistry, western blotting, and analyses of datasets from Oncomine and Gene Expression Omnibus were conducted to assess the expression of NAMPT at the mRNA and protein levels in colorectal cancer. The Kaplan Meier plotter online tool was used to evaluate the prognostic role of NAMPT. Knockdown of NAMPT was performed to assess the role of NAMPT in colorectal cancer cell proliferation and tumorigenesis both in vitro and in vivo. Overexpression of NAMPT was used to evaluate impact of NAMPT on colorectal cancer cell proliferation in vitro. NAD+ quantitation, immunofluorescence, dual luciferase assay and western blot were used to explore the mechanism of colorectal cancer proliferation. Transwell migration and invasion assays were conducted to assess the role of NAMPT in cell migration and invasion abilities of colorectal cancer cells. Results Our study indicated that the inhibition of NAMPT decreased proliferation capacity of colorectal cancer cells both in vitro and in vivo. Conversely, overexpression of NAMPT could promote cell proliferation in vitro. NAMPT inhibition induced β-catenin degradation by increasing Axin expression levels; this resulted in the inhibition of Wnt/β-catenin signaling and cell proliferation in colorectal cancer. The addition of nicotinamide mononucleotide, the enzymatic product of NAMPT, effectively reversed β-catenin protein degradation and inhibited growth. Similarly, the knockdown of Axin also decreased the cell death induced by the inhibition of NAMPT. In addition, we showed that colorectal cancer tissues harbored significantly higher levels of NAMPT than the levels harbored by paired normal tissues, especially in colorectal cancer stages I and II. And the overexpression of NAMPT was associated with unfavorable survival results. Conclusions Our findings reveal that NAMPT plays an important role in colorectal cancer proliferation via Wnt/β-catenin pathway, which could have vital implications for the diagnosis, prognosis and treatment of colorectal cancer.
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Affiliation(s)
- Chenyang Ye
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Lina Qi
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Xiaofen Li
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China.,Department of Abdominal Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ji Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Zhejiang, 310016, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310016, Hangzhou, China
| | - Jiekai Yu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Biting Zhou
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Cheng Guo
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Jiani Chen
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China
| | - Shu Zheng
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China. .,Reseach Center for Air Pollution and Health, School of Medicine, Zhejiang University, Zhejiang, 310009, Hangzhou, China.
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17
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Jodoin R, Carrier JC, Rivard N, Bisaillon M, Perreault JP. G-quadruplex located in the 5'UTR of the BAG-1 mRNA affects both its cap-dependent and cap-independent translation through global secondary structure maintenance. Nucleic Acids Res 2019; 47:10247-10266. [PMID: 31504805 PMCID: PMC6821271 DOI: 10.1093/nar/gkz777] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 08/27/2019] [Accepted: 08/31/2019] [Indexed: 12/19/2022] Open
Abstract
The anti-apoptotic BAG-1 protein isoforms are known to be overexpressed in colorectal tumors and are considered to be potential therapeutic targets. The isoforms are derived from alternative translation initiations occuring at four in-frame start codons of a single mRNA transcript. Its 5′UTR also contains an internal ribosome entry site (IRES) regulating the cap-independent translation of the transcript. An RNA G-quadruplex (rG4) is located at the 5′end of the BAG-1 5′UTR, upstream of the known cis-regulatory elements. Herein, we observed that the expression of BAG-1 isoforms is post-transcriptionally regulated in colorectal cancer cells and tumors, and that stabilisation of the rG4 by small molecules ligands reduces the expression of endogenous BAG-1 isoforms. We demonstrated a critical role for the rG4 in the control of both cap-dependent and independent translation of the BAG-1 mRNA in colorectal cancer cells. Additionally, we found an upstream ORF that also represses BAG-1 mRNA translation. The structural probing of the complete 5′UTR showed that the rG4 acts as a steric block which controls the initiation of translation at each start codon of the transcript and also maintains the global 5′UTR secondary structure required for IRES-dependent translation.
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Affiliation(s)
- Rachel Jodoin
- Département de Biochimie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
| | - Julie C Carrier
- Service de Gastro-entérologie, Département de médecine, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada
| | - Nathalie Rivard
- Département d'Anatomie et de Biologie Cellulaire, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
| | - Martin Bisaillon
- Département de Biochimie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
| | - Jean-Pierre Perreault
- Département de Biochimie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
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18
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Lupinacci FCS, Ferreira EN, Roffe M, Bellato HM, Carraro DM, Hajj GNM. Effects of tumor biobank storage on polysome stability. ACTA ACUST UNITED AC 2019. [DOI: 10.1186/s41241-019-0077-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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19
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Gu X, Wan G, Chen N, Li J, Chen B, Tang Y, Gu W, Jin C, Meng J, Zhang P, Liu L, Yang Z, Lu C. DGKζ Plays Crucial Roles in the Proliferation and Tumorigenicity of Human glioblastoma. Int J Biol Sci 2019; 15:1872-1881. [PMID: 31523189 PMCID: PMC6743304 DOI: 10.7150/ijbs.35193] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 06/23/2019] [Indexed: 12/27/2022] Open
Abstract
Glioblastoma is one of the most malignant brain cancers in adults, and it is a fatal disease because of its untimely pathogenetic location detection, infiltrative growth, and unfavorable prognosis. Unfortunately, multimodal treatment with maximal safe resection, chemotherapy and radiation has not increased the survival rate of patients with glioblastoma. Gene- and molecular-targeted therapy is considered to be a promising anticancer strategy for glioblastoma. The identification of novel potential targets in glioblastoma is of high importance. In this study, we found that both the mRNA and protein levels of diacylglycerol kinase ζ (DGKζ) were significantly higher in glioblastoma tissues than in precancerous lesions. The silencing of DGKζ by lentivirus-delivered shRNA reduced glioblastoma cell proliferation and induced G0/G1 phase arrest. Moreover, knockdown of DGKζ expression in U251 cells markedly reduced in vitro colony formation and in vivo tumorigenic capability. Further study showed that DGKζ inhibition resulted in decreases in cyclin D1, p-AKT and p-mTOR. Moreover, the rescue or overexpression of DGKζ in glioblastoma cells demonstrated the oncogenic function of DGKζ. In conclusion, these studies suggest that the suppression of DGKζ may inhibit the tumor growth of glioblastoma cells with high DGKζ expression. Thus, DGKζ might be a potential therapeutic target in malignant glioblastoma.
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Affiliation(s)
- Xuefeng Gu
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,College of Fundamental Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Guoqing Wan
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Nianhong Chen
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Jinhong Li
- Department of Neurosurgery, Jiangmen Central Hospital, Jiangmen, Guangdong, PR China
| | - Bing Chen
- Department of Neurosurgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, PR China
| | - Yeling Tang
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Wangxian Gu
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Cuiting Jin
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Jihong Meng
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Peng Zhang
- College of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Li Liu
- College of Fundamental Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Zhifang Yang
- College of Fundamental Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
| | - Changlian Lu
- Collaborative Research Center, Shanghai University of Medicine & Health Sciences, Shanghai, PR China.,Shanghai Key Laboratory of Molecular Imaging, Shanghai University of Medicine & Health Sciences, Shanghai, PR China
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20
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Hsu YH, Liu WW, Wu TH, Lee CJT, Chen YH, Li PC. Study of diffusive- and convective-transport mediated microtumor growth in a controlled microchamber. Biomed Microdevices 2019; 21:7. [PMID: 30607550 DOI: 10.1007/s10544-018-0356-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
In this paper, we report on using mass transport to control nutrition supply of colorectal cancer cells for developing a microtumor in a confined microchamber. To mimic the spatial heterogeneity of a tumor, two microfluidic configurations based on resistive circuits are designed. One has a convection-dominated microchamber to simulate the tumor region proximal to leaky blood vessels. The other has a diffusion-dominated microchamber to mimic the tumor core that lacks blood vessels and nutrient supply. Thus, the time for nutrition to fill the microchamber can vary from tens of minutes to several hours. Results show that cells cultured under a diffusive supply of nutrition have a high glycolytic rate and a nearly constant oxygen consumption rate. In contrast, cells cultured under convective supply of nutrition have a gradual increase of oxygen consumption rate with a low glycolytic rate. This suggests that cancer cells have distinct reactions under different mass transport and nutrition supply. Using these two microfluidic platforms to create different rate of nutrition supply, it is found that a continuous microtumor that almost fills the mm-size microchamber can be developed under a low-nutrient supply environment, but not for the convective condition. It also is demonstrated that microchannels can simulate the delivery of anti-cancer drugs to the microtumor under controlled mass-transport. This method provides a means to develop a larger scale microtumor in a lab-on-a-Chip system for post development and stimulations, and microchannels can be applied to control the physical and chemical environment for anti-cancer drug screening.
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Affiliation(s)
- Yu-Hsiang Hsu
- Institute of Applied Mechanics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China.
| | - Wei-Wen Liu
- Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China
| | - Tung-Han Wu
- Institute of Applied Mechanics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China
| | - Carina Jean-Tien Lee
- Institute of Applied Mechanics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China
| | - Yu-Hsi Chen
- Institute of Applied Mechanics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China
| | - Pai-Chi Li
- Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Sec.4, Roosevelt Rd., Taipei, 10617, Taiwan, Republic of China
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21
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Chellini L, Monteleone V, Lombari M, Caldarola S, Loreni F. The oncoprotein Myc controls the phosphorylation of S6 kinase and AKT through protein phosphatase 2A. J Cell Biochem 2018; 119:9878-9887. [PMID: 30132971 DOI: 10.1002/jcb.27309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 06/27/2018] [Indexed: 12/29/2022]
Abstract
This study focuses on the effects of Myc oncoprotein on the translational apparatus of the cell. Translation is an energy consuming process that involves a large number of accessory factors. The production of components of the protein synthesis machinery can be regulated at the transcriptional level by specific factors. It has been shown that the product of the oncogene Myc, a transcription factor frequently activated in cancer, can control translational activity through an increase in the transcription of the eIF4F complex components (eIF4E, eIF4AI, and eIF4GI). However, additional effects at the posttranslational level have also been described. For instance, it has been shown that Myc upregulation can induce mammalian target of rapamycin (mTOR)-dependent 4E-binding protein 1 (4E-BP1) hyperphosphorylation. We induced overexpression or inhibition of Myc through transfection of complementary DNA constructs or specific small interfering RNA in PC3 (prostate carcinoma) and HeLa (cervical carcinoma) cells. We have observed that overexpression of Myc causes an increase in 4E-BP1 phosphorylation and activation of protein synthesis. Unexpectedly, we detected a parallel decrease in the phosphorylation level of S6 kinase (in PC3 and HeLa) and AKT (in HeLa). We report evidence that these changes are mediated by an increase in protein phosphatase 2A activity.
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Affiliation(s)
- Lidia Chellini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.,Unit of Preclinical Models and New Therapeutic Agents, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | | | - Malinska Lombari
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Sara Caldarola
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Fabrizio Loreni
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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22
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Wei H, Li J, Xie M, Lei R, Hu B. Comprehensive analysis of metastasis-related genes reveals a gene signature predicting the survival of colon cancer patients. PeerJ 2018; 6:e5433. [PMID: 30155352 PMCID: PMC6108311 DOI: 10.7717/peerj.5433] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/10/2018] [Indexed: 12/11/2022] Open
Abstract
Objective The mechanism underlying colon cancer metastasis remain unclear. This study aimed to elucidate the genes alteration during the metastasis of colon cancer and identify genes that crucial to the metastasis and survival of colon cancer patients. Methods The dataset of primary and metastasis tissue of colon cancer, and dataset of high and low metastasis capability of colon cancer cells were selected as training cohort, and the overlapped differentially expressed genes (DEGs) were screened from the training cohort. The functional enrichment analysis for the overlapped DEGs was performed. The prognostic value of overlapped DEGs were analyzed in The Cancer Genome Atlas dataset, and a gene signature was developed using genes that related to the overall survival (OS). The prognostic value of the gene signature was further confirmed in a validation cohort. Results A total of 184 overlapped DEGs were screened from the training cohort. Functional enrichment analysis revealed the significant gene functions and pathways of the overlapped DEGs. Four hub genes (3-oxoacid CoA-transferase 1, actinin alpha 4, interleukin 8, integrin subunit alpha 3) were identified using protein–protein network analysis. Six genes (aldehyde dehydrogenase 2, neural precursor cell expressed, developmentally down-regulated 9, filamin A, lamin B receptor, twinfilin actin binding protein 1, serine and arginine rich splicing factor 1) were closely related to the OS of colon cancer patients. A gene signature was developed using these six genes based on their risk score, and the validation cohort indicated that the prognostic value of this gene signature was high in the prediction of colon cancer patients. Conclusions Our study demonstrates a gene profiles related to the metastasis of colon cancer, and identify a six-gene signature that acts as an independent biomarker on the prognosis of colon cancer.
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Affiliation(s)
- Haotang Wei
- Department of Gastrointestinal Surgery, Third Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jilin Li
- Department of Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Minzhi Xie
- Department of Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - Ronger Lei
- Department of Gastroenterology, First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Bangli Hu
- Department of Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
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23
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Cisplatin suppresses proliferation, migration and invasion of nasopharyngeal carcinoma cells in vitro by repressing the Wnt/β-catenin/Endothelin-1 axis via activating B cell translocation gene 1. Cancer Chemother Pharmacol 2018. [PMID: 29536130 DOI: 10.1007/s00280-018-3536-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE Nasopharyngeal carcinoma (NPC) is one of the most commonly diagnosed cancers worldwide with significantly high prevalence in Southern China. Chemoprevention of cancer with alkylating agent compounds could potentially reverse, suppress, or prevent cancer progression. Cisplatin (CIS) is an antineoplastic or cytotoxic platinum-based drug used for chemotherapy of different types of human cancers such as NPC. Nevertheless, the effects of CIS on the migration and invasion of human NPC cells and the underlying molecular mechanisms have not yet been fully scrutinized. METHODS In this work, we tested the effect of CIS on the proliferation, migration and invasion of NPC cells. The results exhibited that this drug exerts remarkable inhibitory effects on the proliferation, migration and invasion of NPC cells in a dose-dependent manner. Western blotting and real time RT-PCR were used for expression analyses. RESULTS We found that CIS treatment led to a dose-dependent inhibition of Endothelin-1 (ET1) expression, at protein as well as mRNA levels in NPC cells. CIS was also found to activate the expression of BTG1 in NPC cells. Moreover, mechanistic analyses revealed that CIS increased the expression of B cell translocation gene 1 (BTG1) to suppress the expression of ET1. Furthermore, we show that ET1 could not be induced in CIS-resistant cells with suppressed BTG1 expression, and subsequently demote the proliferation, migration and invasion of NPC cells. CONCLUSIONS These findings provided compelling evidence of the role of CIS in suppressing NPC metastasis and its underlying molecular mechanisms.
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24
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Jiang W, Zhang X, Chu Q, Lu S, Zhou L, Lu X, Liu C, Mao L, Ye C, Timko MP, Fan L, Ju H. The Circular RNA Profiles of Colorectal Tumor Metastatic Cells. Front Genet 2018; 9:34. [PMID: 29479369 PMCID: PMC5811837 DOI: 10.3389/fgene.2018.00034] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 01/25/2018] [Indexed: 12/19/2022] Open
Abstract
Circular RNAs (circRNAs) have been reported that can be used as biomarkers for colorectal cancers (CRC) and other types of tumors. However, a limited number of studies have been performed investigating the potential role of circRNAs in tumor metastasis. Here, we examined the circRNAs in two CRC cell lines (a primary tumor cell SW480 and its metastasis cell SW620), and found a large set of circRNA (2,919 ncDECs) with significantly differential expression patterns relative to normal cells (NCM460). In addition, we uncovered a set of 623 pmDECs that differ between the primary CRC cells and its metastasis cells. Both differentially expressed circRNA (DEC) sets contain many previously unknown putative CRC-related circRNAs, thereby providing many new circRNAs as candidate biomarkers for CRC development and metastasis. These studies are the first large-scale identification of metastasis-related circRNAs for CRC and provide valuable candidate biomarkers for diagnostic and a starting point for additional investigations of CRC metastasis.
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Affiliation(s)
- Weiqin Jiang
- Cancer Biotherapy Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xingchen Zhang
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China.,Research Center for Air Pollution and Health, Hangzhou, China
| | - Qinjie Chu
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - Sen Lu
- Departments of Colorectal Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Linfu Zhou
- Medical Biotechnology Laboratory, Zhejiang University, Hangzhou, China
| | - Xingang Lu
- The 2nd Clinical Medical College, Zhejiang Chinese Medicine University, Hangzhou, China.,Zhejiang Cancer Hospital, Hangzhou, China
| | - Chen Liu
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - Lingfeng Mao
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - Chuyu Ye
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China
| | - Michael P Timko
- Departments of Biology and Public Health Science, University of Virginia, Charlottesville, VA, United States
| | - Longjiang Fan
- Department of Agronomy, Institute of Bioinformatics, Zhejiang University, Hangzhou, China.,Research Center for Air Pollution and Health, Hangzhou, China
| | - Haixing Ju
- Zhejiang Cancer Hospital, Hangzhou, China
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25
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Rossi A, Moro A, Tebaldi T, Cornella N, Gasperini L, Lunelli L, Quattrone A, Viero G, Macchi P. Identification and dynamic changes of RNAs isolated from RALY-containing ribonucleoprotein complexes. Nucleic Acids Res 2017; 45:6775-6792. [PMID: 28379492 PMCID: PMC5499869 DOI: 10.1093/nar/gkx235] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 03/30/2017] [Indexed: 12/13/2022] Open
Abstract
RALY is a member of the heterogeneous nuclear ribonucleoprotein family (hnRNP), a large family of RNA-binding proteins involved in many aspects of RNA metabolism. Although RALY interactome has been recently characterized, a comprehensive global analysis of RALY-associated RNAs is lacking and the biological function of RALY remains elusive. Here, we performed RIP-seq analysis to identify RALY interacting RNAs and assessed the role of RALY in gene expression. We demonstrate that RALY binds specific coding and non-coding RNAs and associates with translating mRNAs of mammalian cells. Among the identified transcripts, we focused on ANXA1 and H1FX mRNAs, encoding for Annexin A1 and for the linker variant of the histone H1X, respectively. Both proteins are differentially expressed by proliferating cells and are considered as markers for tumorigenesis. We demonstrate that cells lacking RALY expression exhibit changes in the levels of H1FX and ANXA1 mRNAs and proteins in an opposite manner. We also provide evidence for a direct binding of RALY to the U-rich elements present within the 3΄UTR of both transcripts. Thus, our results identify RALY as a poly-U binding protein and as a regulator of H1FX and ANXA1 in mammalian cells.
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Affiliation(s)
- Annalisa Rossi
- Laboratory of Molecular and Cellular Neurobiology, Centre for Integrative Biology, University of Trento, via Sommarive 9, 38123 Trento (TN), Italy
| | - Albertomaria Moro
- Laboratory of Molecular and Cellular Neurobiology, Centre for Integrative Biology, University of Trento, via Sommarive 9, 38123 Trento (TN), Italy
| | - Toma Tebaldi
- Laboratory of Translational Genomics, CIBIO - Centre for Integrative Biology, University of Trento, Italy
| | - Nicola Cornella
- Laboratory of Molecular and Cellular Neurobiology, Centre for Integrative Biology, University of Trento, via Sommarive 9, 38123 Trento (TN), Italy
| | - Lisa Gasperini
- Laboratory of Molecular and Cellular Neurobiology, Centre for Integrative Biology, University of Trento, via Sommarive 9, 38123 Trento (TN), Italy
| | - Lorenzo Lunelli
- Laboratory of Biomolecular Sequence and Structure Analysis for Health, Fondazione Bruno Kessler, Via Sommarive 18, 38123 Povo (TN), Italy
| | - Alessandro Quattrone
- Laboratory of Translational Genomics, CIBIO - Centre for Integrative Biology, University of Trento, Italy
| | - Gabriella Viero
- Institute of Biophysics, CNR-Italian National Council for Research, via Sommarive 18, 38123 Trento (TN), Italy
| | - Paolo Macchi
- Laboratory of Molecular and Cellular Neurobiology, Centre for Integrative Biology, University of Trento, via Sommarive 9, 38123 Trento (TN), Italy
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26
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The suppressing effects of BTG3 expression on aggressive behaviors and phenotypes of colorectal cancer: An in vitro and vivo study. Oncotarget 2017; 8:18322-18336. [PMID: 28407690 PMCID: PMC5392331 DOI: 10.18632/oncotarget.15438] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/11/2017] [Indexed: 11/25/2022] Open
Abstract
Here, we found that down-regulated expression of BTG3 might be positively correlated with colorectal carcinogenesis and its overexpression suppressed proliferation, glycolysis, mitochondrial respiration, cell cycle progression, migration, and invasion, and induced apoptosis, senescence and differentiation in SW480 and SW620 cells. After treated with cisplatin, MG132, paclitaxel and SAHA, BTG3 transfectants exhibited lower viability and higher apoptosis than the control in both time- and dose-dependent manners. BTG3 overexpression up- regulated the protein expression of Cyclin E, p16, p27, NF-κB, p38α/β, XIAP, Bcl-2, ATG14 and p53, but down-regulated the mRNA expression of MRP1, BCRP, and mTOR in SW480 and SW620 cells. BTG3 overexpression inhibited tumor growth of SW620 cells by suppressing proliferation and inducing apoptosis. It was suggested that down-regulated BTG3 expression might be considered as a marker for colorectal carcinogenesis. BTG3 overexpression might reverse the aggressive phenotypes and be employed as a potential target for gene therapy of colorectal cancer.
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27
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Chen S, Wang Y, Zhang L, Su Y, Zhang M, Wang J, Zhang X. Exploration of the mechanism of colorectal cancer metastasis using microarray analysis. Oncol Lett 2017; 14:6671-6677. [PMID: 29163694 PMCID: PMC5691382 DOI: 10.3892/ol.2017.7044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 07/11/2017] [Indexed: 02/07/2023] Open
Abstract
The aim of the present study was to investigate the mechanism of metastasis in colorectal cancer (CRC) using microRNA (miRNA) and mRNA expression profiles. The mRNA and miRNA expression profiles of the GSE2509 and GSE56350 datasets were obtained from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) and differentially expressed miRNAs (DEMs) were identified using the limma software package. The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the DEGs. The predicted target genes associated with the DEMs were identified using the miRWalk database and the enrichment analysis was conducted using the clusterProfiler package. The miRNA-gene molecular interaction network was visualized using the Cytoscape software platform. A total of 544 DEGs and 42 DEMs were identified. DEGs were annotated in 320 GO terms and 11 KEGG pathways. Overall, 366 miRNA-gene pairs were identified and the miRNA-gene network was visualized. Furthermore, the predicted target genes were mainly classified in 12 pathways. The results of the present study suggest that fibronectin type III domain-containing 3B, cysteine rich transmembrane BMP regulator 1 and forkhead box J2 may be potential therapeutic and prognostic targets of metastatic CRC. In addition, pathways in cancer, the Wnt signaling pathway and extracellular matrix-receptor interaction may play a critical role in CRC metastasis.
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Affiliation(s)
- Shuo Chen
- Department of Anorectal Surgery, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
| | - Yan Wang
- Department of Anorectal Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Lin Zhang
- Department of Anorectal Surgery, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
| | - Yinan Su
- Department of Anorectal Surgery, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
| | - Mingqing Zhang
- Anorectal Diseases Diagnosis and Treatment Center, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
| | - Juan Wang
- Department of Anorectal Surgery, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
| | - Xipeng Zhang
- Department of Anorectal Surgery, Tianjin Union Medical Center Nankai University Affiliated Hospital, Tianjin 30000, P.R. China
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28
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Kadochi Y, Mori S, Fujiwara-Tani R, Luo Y, Nishiguchi Y, Kishi S, Fujii K, Ohmori H, Kuniyasu H. Remodeling of energy metabolism by a ketone body and medium-chain fatty acid suppressed the proliferation of CT26 mouse colon cancer cells. Oncol Lett 2017; 14:673-680. [PMID: 28693220 PMCID: PMC5494726 DOI: 10.3892/ol.2017.6195] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 03/13/2017] [Indexed: 01/10/2023] Open
Abstract
Normal and cancerous cells are suggested to have differential utilization of fatty acids and ketone bodies, which could be exploited in cancer therapy. The present study examined the effect of 3-hydroxybutyric acid (3-HBA), which is a ketone body generating acetyl-CoA, and lauric acid (LAA, C12:0), which is a medium-chain saturated fatty acid translocated to mitochondria in a carnitine-independent manner to produce acetyl-CoA, on the energy metabolism of mouse CT26 colon cancer cells. In CT26 cells expressing 3-HBA and LAA transporters, 3-HBA and LAA reduced cell proliferation, mitochondrial volume and lactate production, and increased oxidative stress, particularly in low-glucose conditions. Concurrent treatment with 3-HBA and LAA under glucose starvation had a synergistic effect on cell growth inhibition. In addition, LAA and LAA + 3-HBA promoted an imbalance in the expression of enzymes in the electron transport chain. These findings suggested that treatment with 3-HBA and/or LAA during glucose starvation may reprogram energy metabolism and decrease the proliferation of cancer cells.
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Affiliation(s)
- Yui Kadochi
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Shiori Mori
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Rina Fujiwara-Tani
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Yi Luo
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Yukiko Nishiguchi
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Shingo Kishi
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Kiyomu Fujii
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Hitoshi Ohmori
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
| | - Hiroki Kuniyasu
- Department of Molecular Pathology, Nara Medical University, Kashihara, Nara 634-8521, Japan
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29
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Schunter AJ, Yue X, Hummon AB. Phosphoproteomics of colon cancer metastasis: comparative mass spectrometric analysis of the isogenic primary and metastatic cell lines SW480 and SW620. Anal Bioanal Chem 2016; 409:1749-1763. [PMID: 27987026 DOI: 10.1007/s00216-016-0125-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 11/28/2016] [Indexed: 12/25/2022]
Abstract
The contributions of phosphorylation-mediated signaling networks to colon cancer metastasis are poorly defined. To interrogate constitutive signaling alterations in cancer progression, the global phosphoproteomes of patient-matched SW480 (primary colon tumor origin) and SW620 (lymph node metastasis) cell lines were compared with TiO2 and immobilized metal affinity chromatography phosphopeptide enrichment followed by liquid chromatography-tandem mass spectrometry. Network analysis of the significantly altered phosphosites revealed differential regulation in cellular adhesion, mitosis, and messenger RNA translational machinery. Messenger RNA biogenesis and splicing, transport through the nuclear pores, initiation of translation, and stability and degradation were also affected. Although alterations in these processes have been associated with oncogenic transformation, control of messenger RNA stability has typically not been associated with cancer progression. Notably, the single phosphosite with the greatest relative change in SW620 cells was Ser2 on eukaryotic translation initiation factor 2 subunit 2, suggesting that SW620 cells translate faster or with greater efficiency than SW480 cells. These broad changes in the regulation of translation also occur without overexpression of eukaryotic translation initiation factor 4E. The findings suggest that metastatic cells exhibit constitutive changes to the phosphoproteome, and that messenger RNA stability and translational efficiency may be important targets of deregulation during cancer progression.
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Affiliation(s)
- Alissa J Schunter
- Department of Chemistry and Biochemistry, Harper Cancer Research Institute, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN, 46556, USA
| | - Xiaoshan Yue
- Department of Chemistry and Biochemistry, Harper Cancer Research Institute, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN, 46556, USA
| | - Amanda B Hummon
- Department of Chemistry and Biochemistry, Harper Cancer Research Institute, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, IN, 46556, USA.
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30
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Long NP, Lee WJ, Huy NT, Lee SJ, Park JH, Kwon SW. Novel Biomarker Candidates for Colorectal Cancer Metastasis: A Meta-analysis of In Vitro Studies. Cancer Inform 2016; 15:11-7. [PMID: 27688707 PMCID: PMC5034882 DOI: 10.4137/cin.s40301] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/15/2016] [Accepted: 08/16/2016] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common and lethal cancers. Although numerous studies have evaluated potential biomarkers for early diagnosis, current biomarkers have failed to reach an acceptable level of accuracy for distant metastasis. In this paper, we performed a gene set meta-analysis of in vitro microarray studies and combined the results from this study with previously published proteomic data to validate and suggest prognostic candidates for CRC metastasis. Two microarray data sets included found 21 significant genes. Of these significant genes, ALDOA, IL8 (CXCL8), and PARP4 had strong potential as prognostic candidates. LAMB2, MCM7, CXCL23A, SERPINA3, ABCA3, ALDH3A2, and POLR2I also have potential. Other candidates were more controversial, possibly because of the biologic heterogeneity of tumor cells, which is a major obstacle to predicting metastasis. In conclusion, we demonstrated a meta-analysis approach and successfully suggested ten biomarker candidates for future investigation.
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Affiliation(s)
| | | | - Nguyen Truong Huy
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Seul Ji Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Jeong Hill Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Sung Won Kwon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
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31
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Duffy AG, Makarova-Rusher OV, Ulahannan SV, Rahma OE, Fioravanti S, Walker M, Abdullah S, Raffeld M, Anderson V, Abi-Jaoudeh N, Levy E, Wood BJ, Lee S, Tomita Y, Trepel JB, Steinberg SM, Revenko AS, MacLeod AR, Peer CJ, Figg WD, Greten TF. Modulation of tumor eIF4E by antisense inhibition: A phase I/II translational clinical trial of ISIS 183750-an antisense oligonucleotide against eIF4E-in combination with irinotecan in solid tumors and irinotecan-refractory colorectal cancer. Int J Cancer 2016; 139:1648-57. [PMID: 27194579 DOI: 10.1002/ijc.30199] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/03/2016] [Accepted: 04/08/2016] [Indexed: 12/22/2022]
Abstract
The eukaryotic translation initiation factor 4E (eIF4E) is a potent oncogene that is found to be dysregulated in 30% of human cancer, including colorectal carcinogenesis (CRC). ISIS 183750 is a second-generation antisense oligonucleotide (ASO) designed to inhibit the production of the eIF4E protein. In preclinical studies we found that EIF4e ASOs reduced expression of EIF4e mRNA and inhibited proliferation of colorectal carcinoma cells. An additive antiproliferative effect was observed in combination with irinotecan. We then performed a clinical trial evaluating this combination in patients with refractory cancer. No dose-limiting toxicities were seen but based on pharmacokinetic data and tolerability the dose of irinotecan was reduced to 160 mg/m(2) biweekly. Efficacy was evaluated in 15 patients with irinotecan-refractory colorectal cancer. The median time of disease control was 22.1 weeks. After ISIS 183750 treatment, peripheral blood levels of eIF4E mRNA were decreased in 13 of 19 patients. Matched pre- and posttreatment tumor biopsies showed decreased eIF4E mRNA levels in five of nine patients. In tumor tissue, the intracellular and stromal presence of ISIS 183750 was detected by IHC in all biopsied patients. Although there were no objective responses stable disease was seen in seven of 15 (47%) patients who were progressing before study entry, six of whom were stable at the time of the week 16 CT scan. We were also able to confirm through mandatory pre- and posttherapy tumor biopsies penetration of the ASO into the site of metastasis.
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Affiliation(s)
- A G Duffy
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - O V Makarova-Rusher
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - S V Ulahannan
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - O E Rahma
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - S Fioravanti
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - M Walker
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - S Abdullah
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - M Raffeld
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - V Anderson
- Radiology and Imaging Sciences, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - N Abi-Jaoudeh
- Radiology and Imaging Sciences, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - E Levy
- Radiology and Imaging Sciences, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - B J Wood
- Radiology and Imaging Sciences, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - S Lee
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Y Tomita
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - J B Trepel
- Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - S M Steinberg
- Biostatistics and Data Management Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | | | | | - C J Peer
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - W D Figg
- Clinical Pharmacology Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - T F Greten
- Gastrointestinal Malignancies Section, Thoracic-GI Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
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Gou WF, Yang XF, Shen DF, Zhao S, Liu YP, Sun HZ, Takano Y, Su RJ, Luo JS, Zheng HC. The roles of BTG3 expression in gastric cancer: a potential marker for carcinogenesis and a target molecule for gene therapy. Oncotarget 2016; 6:19841-67. [PMID: 25904053 PMCID: PMC4637325 DOI: 10.18632/oncotarget.3734] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 03/10/2015] [Indexed: 02/06/2023] Open
Abstract
BTG (B-cell translocation gene) can inhibit cell proliferation, metastasis and angiogenesis, cell cycle progression, and induce differentiation in various cells. Here, we found that BTG3 overexpression inhibited proliferation, induced S/G2 arrest, differentiation, autophagy, apoptosis, suppressed migration and invasion in MKN28 and MGC803 cells (p < 0.05). BTG3 transfectants showed a higher mRNA expression of p27, Bax, 14-3-3, Caspase-3, Caspase-9, Beclin 1, NF-κB, IL-1, -2, -4, -10 and -17, but a lower mRNA expression of p21, MMP-9 and VEGF than the control and mock (p < 0.05). At protein level, BTG3 overexpression increased the expression of CDK4, AIF, LC-3B, Beclin 1 and p38 (p < 0.05), but decreased the expression of p21 and β-catenin in both transfectants (p < 0.05). After treated with cisplatin, MG132, paclitaxel and SAHA, both BTG3 transfectants showed lower viability and higher apoptosis than the control in both time- and dose-dependent manners (p < 0.05). BTG3 expression was restored after 5-aza-2′-deoxycytidine or MG132 treatment in gastric cancer cells. BTG3 expression was decreased in gastric cancer in comparison to the adjacent mucosa (p < 0.05), and positively correlated with venous invasion and dedifferentiation of cancer (p < 0.05). It was suggested that BTG3 expression might contribute to gastric carcinogenesis. BTG3 overexpression might reverse the aggressive phenotypes and be employed as a potential target for gene therapy of gastric cancer.
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Affiliation(s)
- Wen-feng Gou
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Xue-feng Yang
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Dao-fu Shen
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Shuang Zhao
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Yun-peng Liu
- Department of Oncological Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hong-zhi Sun
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Yasuo Takano
- School of Health Science, Tokyo University of Technology, Ohta-ku, Tokyo
| | - Rong-jian Su
- Experimental Center, Liaoning Medical University, Jinzhou, China
| | - Jun-sheng Luo
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
| | - Hua-chuan Zheng
- Cancer Research Center, Key Laboratory of Brain and Spinal Cord Injury of Liaoning Province, and Laboratory Animal Center, The First Affiliated Hospital of Liaoning Medical University, Jinzhou, China
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Fan S, Li X, Li L, Wang L, Du Z, Yang Y, Zhao J, Li Y. Silencing of carboxypeptidase E inhibits cell proliferation, tumorigenicity, and metastasis of osteosarcoma cells. Onco Targets Ther 2016; 9:2795-803. [PMID: 27274275 PMCID: PMC4869623 DOI: 10.2147/ott.s98991] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Carboxypeptidase E (CPE), a prohormone processing enzyme, has been implicated in the progression of multiple malignancies. However, the biological role and molecular mechanisms of CPE in osteosarcoma remain elusive. In this study, we assessed the effects of CPE on cell proliferation, tumorigenicity, migration, and invasion in osteosarcoma. Our results showed that silencing of CPE significantly inhibited cell proliferation, caused cell cycle arrest at G0/G1 phase, decreased the expression levels of cell cycle protein, cyclin D1, and inhibited tumorigenicity in vivo. Additionally, CPE downregulation repressed the migratory and invasive capacities of osteosarcoma cells in vitro. Furthermore, overexpression of CPE-ΔN (a splice variant of CPE) enhanced the cell growth, migration, and invasion of osteosarcoma cells. It is possible that both CPE forms are involved in the tumorigenesis and development of osteosarcoma, and therefore CPE may provide a promising biological target for osteosarcoma therapy.
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Affiliation(s)
- Shuli Fan
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Xu Li
- Department of Sports Medicine and Joint Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Leiming Li
- Department of Sports Medicine and Joint Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Liguo Wang
- Department of Sports Medicine and Joint Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Zhangzhen Du
- Department of Sports Medicine and Joint Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yan Yang
- Department of Sports Medicine and Joint Surgery, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jiansong Zhao
- Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yan Li
- Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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Mathur PS, Gierut JJ, Guzman G, Xie H, Xicola RM, Llor X, Chastkofsky MI, Perekatt AO, Tyner AL. Kinase-Dependent and -Independent Roles for PTK6 in Colon Cancer. Mol Cancer Res 2016; 14:563-73. [PMID: 26983689 DOI: 10.1158/1541-7786.mcr-15-0450] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 03/07/2016] [Indexed: 12/17/2022]
Abstract
UNLABELLED Disruption of the gene encoding Protein Tyrosine Kinase 6 (Ptk6) delayed differentiation and increased growth in the mouse intestine. However, Ptk6-null mice were also resistant to azoxymethane-induced colon tumorigenesis. To further explore functions of PTK6 in colon cancer, expression of epithelial and mesenchymal markers, as well as proliferation, migration, and xenograft tumor growth, was examined in human colon tumor cell lines with knockdown or overexpression of PTK6. PTK6 protein, transcript, and activation were also examined in a human colon tumor tissue array, using immunohistochemistry and qRT-PCR. Knockdown of PTK6 led to the epithelial-mesenchymal transition (EMT) in SW480 and HCT116 cells, whereas overexpression of PTK6 in SW620 cells restored an epithelial phenotype in a kinase-independent manner. PTK6 knockdown also increased xenograft tumor growth of SW480 cells, suggesting tumor suppressor functions. In clinical specimens, PTK6 expression was highest in normal differentiated epithelial cells and reduced in tumors. In contrast, overexpression of constitutively active PTK6 promoted STAT3 and ERK5 activation in colon cancer cells, and endogenous PTK6 promoted cell survival and oncogenic signaling in response to DNA-damaging treatments. These data indicate that PTK6 has complex, context-specific functions in colon cancer; PTK6 promotes the epithelial phenotype to antagonize the EMT in a kinase-independent manner, whereas activation of PTK6 promotes oncogenic signaling. IMPLICATIONS Understanding context-specific functions of PTK6 is important, because although it promotes cell survival and oncogenic signaling after DNA damage, expression of PTK6 in established tumors may maintain the epithelial phenotype, preventing tumor progression. Mol Cancer Res; 14(6); 563-73. ©2016 AACR.
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Affiliation(s)
- Priya S Mathur
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois
| | - Jessica J Gierut
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois
| | - Grace Guzman
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Hui Xie
- Department of Epidemiology and Biostatistics, University of Illinois at Chicago, Chicago, Illinois
| | - Rosa M Xicola
- Department of Internal Medicine, Yale University, New Haven, Connecticut
| | - Xavier Llor
- Department of Internal Medicine, Yale University, New Haven, Connecticut
| | - Michael I Chastkofsky
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois
| | - Ansu O Perekatt
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois
| | - Angela L Tyner
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, Illinois.
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Thorpe H, Akhlaq M, Jackson D, Al Ghamdi S, Storr S, Martin S, Ilyas M. Multiple pathways regulate Cten in colorectal cancer without a Tensin switch. Int J Exp Pathol 2016; 96:362-9. [PMID: 26852686 DOI: 10.1111/iep.12154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 08/28/2015] [Indexed: 02/07/2023] Open
Abstract
CTEN/TNS4 is a member of the Tensin gene family. It localizes to focal adhesions and induces cell motility. The mechanisms regulating Cten expression are unclear although we have shown regulation by Kras in the colon and pancreas. In normal mammary cell lines, it is reportedly upregulated by epidermal growth factor receptor (EGFR) and STAT3 signalling and upregulation is accompanied by downregulation of Tensin 3 (Tensin switch). In this study, we investigated the roles of EGFR and STAT3 signalling in the regulation of Cten in colorectal cancer (CRC). In addition, we investigated calpain--a regulator of focal adhesion-associated proteins whose relevance to Cten has not been investigated. CRC cell lines were stimulated with epidermal growth factor (EGF). This resulted in an increase in Cten and Tensin 3 protein. Kras was knocked down and this resulted in downregulation of Cten and Tensin 3. We next investigated the role of STAT3 signalling. Activation and knockdown of STAT3 resulted in downregulation and upregulation, respectively, of Cten. Inhibition of calpain resulted in upregulation of both Cten and Tensin 3. As the regulators of Cten also seemed to regulate Tensin 3, we tested the interaction between Cten and Tensin 3. Cten was forcibly expressed or knocked down resulting, respectively, in upregulation and downregulation of Tensin 3. We conclude that in CRC, Cten is upregulated by EGFR and Kras but downregulated by STAT3. We show that calpain may be a negative regulator of Cten and that a Tensin switch does not occur and, if anything, Cten stabilizes Tensin 3.
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Affiliation(s)
- Hannah Thorpe
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Maham Akhlaq
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Darryl Jackson
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Saleh Al Ghamdi
- King Abdullah International Medical Research Center, KSAU-HS, Riyadh, Saudi Arabia
| | - Sarah Storr
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Stewart Martin
- School of Medicine, University of Nottingham, Nottingham, UK
| | - Mohammad Ilyas
- School of Medicine, University of Nottingham, Nottingham, UK
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Histone H3F3A and HIST1H3B K27M mutations define two subgroups of diffuse intrinsic pontine gliomas with different prognosis and phenotypes. Acta Neuropathol 2015; 130:815-27. [PMID: 26399631 PMCID: PMC4654747 DOI: 10.1007/s00401-015-1478-0] [Citation(s) in RCA: 430] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/08/2015] [Accepted: 09/10/2015] [Indexed: 01/15/2023]
Abstract
Diffuse intrinsic pontine glioma (DIPG) is the most severe paediatric solid tumour, with no significant therapeutic progress made in the past 50 years. Recent studies suggest that diffuse midline glioma, H3-K27M mutant, may comprise more than one biological entity. The aim of the study was to determine the clinical and biological variables that most impact their prognosis. Ninety-one patients with classically defined DIPG underwent a systematic stereotactic biopsy and were included in this observational retrospective study. Histone H3 genes mutations were assessed by immunochemistry and direct sequencing, whilst global gene expression profiling and chromosomal imbalances were determined by microarrays. A full description of the MRI findings at diagnosis and at relapse was integrated with the molecular profiling data and clinical outcome. All DIPG but one were found to harbour either a somatic H3-K27M mutation and/or loss of H3K27 trimethylation. We also discovered a novel K27M mutation in HIST2H3C, and a lysine-to-isoleucine substitution (K27I) in H3F3A, also creating a loss of trimethylation. Patients with tumours harbouring a K27M mutation in H3.3 (H3F3A) did not respond clinically to radiotherapy as well, relapsed significantly earlier and exhibited more metastatic recurrences than those in H3.1 (HIST1H3B/C). H3.3-K27M-mutated DIPG have a proneural/oligodendroglial phenotype and a pro-metastatic gene expression signature with PDGFRA activation, while H3.1-K27M-mutated tumours exhibit a mesenchymal/astrocytic phenotype and a pro-angiogenic/hypoxic signature supported by expression profiling and radiological findings. H3K27 alterations appear as the founding event in DIPG and the mutations in the two main histone H3 variants drive two distinct oncogenic programmes with potential specific therapeutic targets.
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37
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D'Agostino VG, Lal P, Mantelli B, Tiedje C, Zucal C, Thongon N, Gaestel M, Latorre E, Marinelli L, Seneci P, Amadio M, Provenzani A. Dihydrotanshinone-I interferes with the RNA-binding activity of HuR affecting its post-transcriptional function. Sci Rep 2015; 5:16478. [PMID: 26553968 PMCID: PMC4639722 DOI: 10.1038/srep16478] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 10/14/2015] [Indexed: 01/07/2023] Open
Abstract
Post-transcriptional regulation is an essential determinant of gene expression programs in physiological and pathological conditions. HuR is a RNA-binding protein that orchestrates the stabilization and translation of mRNAs, critical in inflammation and tumor progression, including tumor necrosis factor-alpha (TNF). We identified the low molecular weight compound 15,16-dihydrotanshinone-I (DHTS), well known in traditional Chinese medicine practice, through a validated high throughput screening on a set of anti-inflammatory agents for its ability to prevent HuR:RNA complex formation. We found that DHTS interferes with the association step between HuR and the RNA with an equilibrium dissociation constant in the nanomolar range in vitro (Ki = 3.74 ± 1.63 nM). In breast cancer cell lines, short term exposure to DHTS influences mRNA stability and translational efficiency of TNF in a HuR-dependent manner and also other functional readouts of its post-transcriptional control, such as the stability of selected pre-mRNAs. Importantly, we show that migration and sensitivity of breast cancer cells to DHTS are modulated by HuR expression, indicating that HuR is among the preferential intracellular targets of DHTS. Here, we disclose a previously unrecognized molecular mechanism exerted by DHTS, opening new perspectives to therapeutically target the HuR mediated, post-transcriptional control in inflammation and cancer cells.
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Affiliation(s)
| | - Preet Lal
- Centre For Integrative Biology (CIBIO), University of Trento, Trento, 38123, Italy
| | - Barbara Mantelli
- Centre For Integrative Biology (CIBIO), University of Trento, Trento, 38123, Italy
| | - Christopher Tiedje
- Department of Biochemistry, Hannover Medical University, Hannover, D-30625, Germany
| | - Chiara Zucal
- Centre For Integrative Biology (CIBIO), University of Trento, Trento, 38123, Italy
| | - Natthakan Thongon
- Centre For Integrative Biology (CIBIO), University of Trento, Trento, 38123, Italy
| | - Matthias Gaestel
- Department of Biochemistry, Hannover Medical University, Hannover, D-30625, Germany
| | - Elisa Latorre
- Centre For Integrative Biology (CIBIO), University of Trento, Trento, 38123, Italy
| | - Luciana Marinelli
- Department of Pharmacy, University of Naples "Federico II", Naples, 80131, Italy
| | | | - Marialaura Amadio
- Department of Drug Sciences, University of Pavia, Pavia, 27100, Italy
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Dassi E, Greco V, Sidarovich V, Zuccotti P, Arseni N, Scaruffi P, Tonini GP, Quattrone A. Translational compensation of genomic instability in neuroblastoma. Sci Rep 2015; 5:14364. [PMID: 26399178 PMCID: PMC4585852 DOI: 10.1038/srep14364] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 08/25/2015] [Indexed: 11/23/2022] Open
Abstract
Cancer-associated gene expression imbalances are conventionally studied at the genomic, epigenomic and transcriptomic levels. Given the relevance of translational control in determining cell phenotypes, we evaluated the translatome, i.e., the transcriptome engaged in translation, as a descriptor of the effects of genetic instability in cancer. We performed this evaluation in high-risk neuroblastomas, which are characterized by a low frequency of point mutations or known cancer-driving genes and by the presence of several segmental chromosomal aberrations that produce gene-copy imbalances that guide aggressiveness. We thus integrated genome, transcriptome, translatome and miRome profiles in a representative panel of high-risk neuroblastoma cell lines. We identified a number of genes whose genomic imbalance was corrected by compensatory adaptations in translational efficiency. The transcriptomic level of these genes was predictive of poor prognosis in more than half of cases, and the genomic imbalances found in their loci were shared by 27 other tumor types. This homeostatic process is also not limited to copy number-altered genes, as we showed the translational stoichiometric rebalance of histone genes. We suggest that the translational buffering of fluctuations in these dose-sensitive transcripts is a potential driving process of neuroblastoma evolution.
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Affiliation(s)
- Erik Dassi
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
| | - Valentina Greco
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
| | - Viktoryia Sidarovich
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
| | - Paola Zuccotti
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
| | - Natalia Arseni
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
| | - Paola Scaruffi
- Center of Physiopathology of Human Reproduction, Unit of Obstetrics and Gynecology, IRCSS A.O.U. San Martino IST, Genova, Italy
| | - Gian Paolo Tonini
- Neuroblastoma Laboratory, Pediatric Research Institute, Fondazione Città della Speranza, Padova, Italy
| | - Alessandro Quattrone
- Laboratory of Translational Genomics, Centre for Integrative Biology, University of Trento, Italy
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Torres-Ayuso P, Tello-Lafoz M, Mérida I, Ávila-Flores A. Diacylglycerol kinase-ζ regulates mTORC1 and lipogenic metabolism in cancer cells through SREBP-1. Oncogenesis 2015; 4:e164. [PMID: 26302180 PMCID: PMC4632073 DOI: 10.1038/oncsis.2015.22] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 06/26/2015] [Accepted: 07/07/2015] [Indexed: 01/03/2023] Open
Abstract
Diacylglycerol kinases (DGKs) transform diacylglycerol (DAG) into phosphatidic acid (PA), balancing the levels of these key metabolic and signaling lipids. We previously showed that PA derived from the DGKζ isoform promotes mammalian target of rapamycin complex 1 (mTORC1) activation. This function might be crucial for the growth and survival of cancer cells, especially for those resistant to the allosteric mTOR inhibitor rapamycin. How this positive function of DGKζ coordinates with DAG metabolism and signaling is unknown. In this study, we used a rapamycin-resistant colon cancer cell line as a model to address the role of DGKζ in tumor cells. We found that DGKζ predominated over other PA sources such as DGKα or phospholipase D to activate mTORC1, and that its activity was a component of the rapamycin-induced feedback loops. We show that the DGKζ DAG-consuming function is central to cell homeostasis, as DAG negatively regulates levels of the lipogenic transcription factor SREBP-1. Our findings suggest a model in which simultaneous regulation of DAG and PA levels by DGKζ is integrated with mTOR function to maintain tumor cell homeostasis; we provide new evidence of the crosstalk between mTOR and lipid metabolism that will be advantageous in the design of drug therapies.
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Affiliation(s)
- P Torres-Ayuso
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - M Tello-Lafoz
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - I Mérida
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
| | - A Ávila-Flores
- Department of Immunology and Oncology, Centro Nacional de Biotecnología/CSIC, Madrid, Spain
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40
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Angelova M, Charoentong P, Hackl H, Fischer ML, Snajder R, Krogsdam AM, Waldner MJ, Bindea G, Mlecnik B, Galon J, Trajanoski Z. Characterization of the immunophenotypes and antigenomes of colorectal cancers reveals distinct tumor escape mechanisms and novel targets for immunotherapy. Genome Biol 2015; 16:64. [PMID: 25853550 PMCID: PMC4377852 DOI: 10.1186/s13059-015-0620-6] [Citation(s) in RCA: 399] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 02/24/2015] [Indexed: 12/26/2022] Open
Abstract
Background While large-scale cancer genomic projects are comprehensively characterizing the mutational spectrum of various cancers, so far little attention has been devoted to either define the antigenicity of these mutations or to characterize the immune responses they elicit. Here we present a strategy to characterize the immunophenotypes and the antigen-ome of human colorectal cancer. Results We apply our strategy to a large colorectal cancer cohort (n = 598) and show that subpopulations of tumor-infiltrating lymphocytes are associated with distinct molecular phenotypes. The characterization of the antigenome shows that a large number of cancer-germline antigens are expressed in all patients. In contrast, neo-antigens are rarely shared between patients, indicating that cancer vaccination requires individualized strategy. Analysis of the genetic basis of the tumors reveals distinct tumor escape mechanisms for the patient subgroups. Hypermutated tumors are depleted of immunosuppressive cells and show upregulation of immunoinhibitory molecules. Non-hypermutated tumors are enriched with immunosuppressive cells, and the expression of immunoinhibitors and MHC molecules is downregulated. Reconstruction of the interaction network of tumor-infiltrating lymphocytes and immunomodulatory molecules followed by a validation with 11 independent cohorts (n = 1,945) identifies BCMA as a novel druggable target. Finally, linear regression modeling identifies major determinants of tumor immunogenicity, which include well-characterized modulators as well as a novel candidate, CCR8, which is then tested in an orthologous immunodeficient mouse model. Conclusions The immunophenotypes of the tumors and the cancer antigenome remain widely unexplored, and our findings represent a step toward the development of personalized cancer immunotherapies. Electronic supplementary material The online version of this article (doi:10.1186/s13059-015-0620-6) contains supplementary material, which is available to authorized users.
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Chen K, Lü S, Cheng H, Tang G, Liu M, Zhou H, Wang J. High expression of neuroguidin increases the sensitivity of acute myeloid leukemia cells to chemotherapeutic drugs. J Hematol Oncol 2015; 8:11. [PMID: 25887473 PMCID: PMC4340276 DOI: 10.1186/s13045-015-0108-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 01/08/2015] [Indexed: 11/28/2022] Open
Abstract
Neuroguidin (NGDN) is a eukaryotic translation initiation factor 4E binding protein. The purpose of this study was to clarify the function of NGDN and its possible mechanism of action in human myeloid leukemia cells. Proliferation inhibition and apoptosis in NGDN over-expressing myeloid multidrug-resistant leukemia cells (K562/A02-NGDN) was significantly higher than in control K562/A02 cells following treatment with vincristine, etoposide, and epirubicin, indicating that NGDN over-expression can increase the sensitivity of multidrug-resistant leukemia cells to chemotherapeutic drugs. Furthermore, NGDN knock-down in K562/A02 cells resulted in the activation of multiple tumor-related signaling pathways, especially the mammalian target of rapamycin (mTOR) pathway.
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Affiliation(s)
- Kejun Chen
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Shuqing Lü
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Hui Cheng
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Gusheng Tang
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Min Liu
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Hong Zhou
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Jianmin Wang
- Department of Hematology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
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42
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Bitterman PB, Polunovsky VA. eIF4E-mediated translational control of cancer incidence. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1849:774-80. [PMID: 25263391 DOI: 10.1016/j.bbagrm.2014.09.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 09/03/2014] [Accepted: 09/10/2014] [Indexed: 11/16/2022]
Abstract
Mitogen activated translation initiation factor eIF4E mediates normal cell proliferation, yet induces tumorigenesis when deregulated and overexpressed. It remains unknown, how activated eIF4E directs such distinct biological outputs. Our experimental data provide evidence that distinct threshold levels of eIF4E govern its biological output in lactating mammary glands and that eIF4E overexpression in the context of cell population expansion can initiate malignant transformation by enabling cells to evade DNA damage checkpoints caused by hyperproliferative oncogenic stimuli. These findings point at the cellular level of eIF4E as an important sensor for normal or pro-neoplastic propagation of cells. Here, we describe a model that links the pro-neoplastic function of eIF4F to its ability to disable oncogene-activated tumor surveillance programs; and propose a novel therapeutic strategy for cancer prevention based upon targeting aberrant eIF4E with safe doses of small-molecule antagonists to ensure the maintenance of eIF4E levels below the pro-neoplastic threshold. This article is part of a Special Issue entitled: Translation and Cancer.
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Affiliation(s)
- Peter B Bitterman
- Department of Medicine, University of Minnesota, 420 Delaware Street S.E., MMC 276, Minneapolis, MN 55455, USA; Masonic Cancer Center, University of Minnesota, 420 Delaware Street S.E., MMC 276, Minneapolis, MN 55455, USA.
| | - Vitaly A Polunovsky
- Department of Medicine, University of Minnesota, 420 Delaware Street S.E., MMC 276, Minneapolis, MN 55455, USA; Masonic Cancer Center, University of Minnesota, 420 Delaware Street S.E., MMC 276, Minneapolis, MN 55455, USA.
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p53-directed translational control can shape and expand the universe of p53 target genes. Cell Death Differ 2014; 21:1522-34. [PMID: 24926617 DOI: 10.1038/cdd.2014.79] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Revised: 04/23/2014] [Accepted: 04/30/2014] [Indexed: 01/20/2023] Open
Abstract
The increasing number of genome-wide transcriptome analyses focusing on p53-induced cellular responses in many cellular contexts keeps adding to the already numerous p53-regulated transcriptional networks. To investigate post-transcriptional controls as an additional dimension of p53-directed gene expression responses, we performed a translatome analysis through polysomal profiling on MCF7 cells upon 16 hours of doxorubicin or nutlin-3a treatment. The comparison between the transcriptome and the translatome revealed a considerable level of uncoupling, characterized by genes whose transcription variations did not correlate with translation variations. Interestingly, uncoupled genes were associated with apoptosis, DNA and RNA metabolism and cell cycle functions, suggesting that post-transcriptional control can modulate classical p53-regulated responses. Furthermore, even for well-established p53 targets that were differentially expressed both at the transcriptional and translational levels, quantitative differences between the transcriptome, subpolysomal and polysomal RNAs were evident. As we searched mechanisms underlying gene expression uncoupling, we identified the p53-dependent modulation of six RNA-binding proteins, where hnRNPD (AUF1) and CPEB4 are direct p53 transcriptional targets, whereas SRSF1, DDX17, YBX1 and TARDBP are indirect targets (genes modulated preferentially in the subpolysomal or polysomal mRNA level) modulated at the translational level in a p53-dependent manner. In particular, YBX1 translation appeared to be reduced by p53 via two different mechanisms, one related to mTOR inhibition and the other to miR-34a expression. Overall, we established p53 as a master regulator of translational control and identified new p53-regulated genes affecting translation that can contribute to p53-dependent cellular responses.
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Cai K, Mulatz K, Ard R, Nguyen T, Gee SH. Increased diacylglycerol kinase ζ expression in human metastatic colon cancer cells augments Rho GTPase activity and contributes to enhanced invasion. BMC Cancer 2014; 14:208. [PMID: 24646293 PMCID: PMC3995506 DOI: 10.1186/1471-2407-14-208] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 03/12/2014] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Unraveling the signaling pathways responsible for the establishment of a metastatic phenotype in carcinoma cells is critically important for understanding the pathology of cancer. The acquisition of cell motility is a key property of metastatic tumor cells and is a prerequisite for invasion. Rho GTPases regulate actin cytoskeleton reorganization and the cellular responses required for cell motility and invasion. Diacylglycerol kinase ζ (DGKζ), an enzyme that phosphorylates diacylglycerol to yield phosphatidic acid, regulates the activity of the Rho GTPases Rac1 and RhoA. DGKζ mRNA is highly expressed in several different colon cancer cell lines, as well as in colon cancer tissue relative to normal colonic epithelium, and thus may contribute to the metastatic process. METHODS To investigate potential roles of DGKζ in cancer metastasis, a cellular, isogenic model of human colorectal cancer metastatic transition was used. DGKζ protein levels, Rac1 and RhoA activity, and PAK phosphorylation were measured in the non-metastatic SW480 adenocarcinoma cell line and its highly metastatic variant, the SW620 line. The effect of DGKζ silencing on Rho GTPase activity and invasion through Matrigel-coated Transwell inserts was studied in SW620 cells. Invasiveness was also measured in PC-3 prostate cancer and MDA-MB-231 breast cancer cells depleted of DGKζ. RESULTS DGKζ protein levels were elevated approximately 3-fold in SW620 cells compared to SW480 cells. There was a concomitant increase in active Rac1 in SW620 cells, as well as substantial increases in the expression and phosphorylation of the Rac1 effector PAK1. Similarly, RhoA activity and expression were increased in SW620 cells. Knockdown of DGKζ expression in SW620 cells by shRNA-mediated silencing significantly reduced Rac1 and RhoA activity and attenuated the invasiveness of SW620 cells in vitro. DGKζ silencing in highly metastatic MDA-MB-231 breast cancer cells and PC-3 prostate cancer cells also significantly attenuated their invasiveness. CONCLUSION Elevated DGKζ expression contributes to increased Rho GTPase activation and the enhanced motility of metastatic cancer cells. These findings warrant further investigation of the clinical relevance of DGKζ upregulation in colon and other cancers. Interfering with DGKζ function could provide a means of inhibiting invasion and metastasis.
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Affiliation(s)
| | | | | | | | - Stephen H Gee
- Department of Cellular and Molecular Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, ON K1H 8 M5, Canada.
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Irmady K, Jackman KA, Padow VA, Shahani N, Martin LA, Cerchietti L, Unsicker K, Iadecola C, Hempstead BL. Mir-592 regulates the induction and cell death-promoting activity of p75NTR in neuronal ischemic injury. J Neurosci 2014; 34:3419-28. [PMID: 24573298 PMCID: PMC3935094 DOI: 10.1523/jneurosci.1982-13.2014] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 01/24/2014] [Accepted: 01/29/2014] [Indexed: 11/21/2022] Open
Abstract
The neurotrophin receptor p75(NTR) has been implicated in mediating neuronal apoptosis after injury to the CNS. Despite its frequent induction in pathologic states, there is limited understanding of the mechanisms that regulate p75(NTR) expression after injury. Here, we show that after focal cerebral ischemia in vivo or oxygen-glucose deprivation in organotypic hippocampal slices or neurons, p75(NTR) is rapidly induced. A concomitant induction of proNGF, a ligand for p75(NTR), is also observed. Induction of this ligand/receptor system is pathologically relevant, as a decrease in apoptosis, after oxygen-glucose deprivation, is observed in hippocampal neurons or slices after delivery of function-blocking antibodies to p75(NTR) or proNGF and in p75(NTR) and ngf haploinsufficient slices. Furthermore, a significant decrease in infarct volume was noted in p75(NTR)-/- mice compared with the wild type. We also investigated the regulatory mechanisms that lead to post-ischemic induction of p75(NTR). We demonstrate that induction of p75(NTR) after ischemic injury is independent of transcription but requires active translation. Basal levels of p75(NTR) in neurons are maintained in part by the expression of microRNA miR-592, and an inverse correlation is seen between miR-592 and p75(NTR) levels in the adult brain. After cerebral ischemia, miR-592 levels fall, with a corresponding increase in p75(NTR) levels. Importantly, overexpression of miR-592 in neurons decreases the level of ischemic injury-induced p75(NTR) and attenuates activation of pro-apoptotic signaling and cell death. These results identify miR-592 as a key regulator of p75(NTR) expression and point to a potential therapeutic candidate to limit neuronal apoptosis after ischemic injury.
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Affiliation(s)
| | - Katherine A. Jackman
- Brain and Mind Research Institute, Weill Cornell Medical College, New York, New York 10065, and
| | | | - Neelam Shahani
- Interdisciplinary Center for Neurosciences, Department of Neuroanatomy, University of Heidelberg, INF 307, D69120 Heidelberg, Germany
| | | | | | - Klaus Unsicker
- Interdisciplinary Center for Neurosciences, Department of Neuroanatomy, University of Heidelberg, INF 307, D69120 Heidelberg, Germany
| | - Costantino Iadecola
- Brain and Mind Research Institute, Weill Cornell Medical College, New York, New York 10065, and
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Bindea G, Mlecnik B, Tosolini M, Kirilovsky A, Waldner M, Obenauf AC, Angell H, Fredriksen T, Lafontaine L, Berger A, Bruneval P, Fridman WH, Becker C, Pagès F, Speicher MR, Trajanoski Z, Galon J. Spatiotemporal dynamics of intratumoral immune cells reveal the immune landscape in human cancer. Immunity 2013; 39:782-95. [PMID: 24138885 DOI: 10.1016/j.immuni.2013.10.003] [Citation(s) in RCA: 2633] [Impact Index Per Article: 239.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 07/25/2013] [Indexed: 02/08/2023]
Abstract
The complex interactions between tumors and their microenvironment remain to be elucidated. Combining large-scale approaches, we examined the spatio-temporal dynamics of 28 different immune cell types (immunome) infiltrating tumors. We found that the immune infiltrate composition changed at each tumor stage and that particular cells had a major impact on survival. Densities of T follicular helper (Tfh) cells and innate cells increased, whereas most T cell densities decreased along with tumor progression. The number of B cells, which are key players in the core immune network and are associated with prolonged survival, increased at a late stage and showed a dual effect on recurrence and tumor progression. The immune control relevance was demonstrated in three endoscopic orthotopic colon-cancer mouse models. Genomic instability of the chemokine CXCL13 was a mechanism associated with Tfh and B cell infiltration. CXCL13 and IL21 were pivotal factors for the Tfh/B cell axis correlating with survival. This integrative study reveals the immune landscape in human colorectal cancer and the major hallmarks of the microenvironment associated with tumor progression and recurrence.
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Affiliation(s)
- Gabriela Bindea
- INSERM U872, Laboratory of Integrative Cancer Immunology, Paris 75006, France; Université Paris Descartes, Paris 75006, France; Cordeliers Research Centre, Université Pierre et Marie Curie Paris 6, Paris 75006, France
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Del Rio M, Mollevi C, Vezzio-Vie N, Bibeau F, Ychou M, Martineau P. Specific extracellular matrix remodeling signature of colon hepatic metastases. PLoS One 2013; 8:e74599. [PMID: 24023955 PMCID: PMC3762755 DOI: 10.1371/journal.pone.0074599] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 08/02/2013] [Indexed: 12/29/2022] Open
Abstract
To identify genes implicated in metastatic colonization of the liver in colorectal cancer, we collected pairs of primary tumors and hepatic metastases before chemotherapy in 13 patients. We compared mRNA expression in the pairs of patients to identify genes deregulated during metastatic evolution. We then validated the identified genes using data obtained by different groups. The 33-gene signature was able to classify 87% of hepatic metastases, 98% of primary tumors, 97% of normal colon mucosa, and 95% of normal liver tissues in six datasets obtained using five different microarray platforms. The identified genes are specific to colon cancer and hepatic metastases since other metastatic locations and hepatic metastases originating from breast cancer were not classified by the signature. Gene Ontology term analysis showed that 50% of the genes are implicated in extracellular matrix remodeling, and more precisely in cell adhesion, extracellular matrix organization and angiogenesis. Because of the high efficiency of the signature to classify colon hepatic metastases, the identified genes represent promising targets to develop new therapies that will specifically affect hepatic metastasis microenvironment.
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Affiliation(s)
- Maguy Del Rio
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- INSERM, U896, Montpellier, France
- Université Montpellier1, Montpellier, France
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
| | - Caroline Mollevi
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
| | - Nadia Vezzio-Vie
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- INSERM, U896, Montpellier, France
- Université Montpellier1, Montpellier, France
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
| | - Frédéric Bibeau
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
| | - Marc Ychou
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- INSERM, U896, Montpellier, France
- Université Montpellier1, Montpellier, France
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
| | - Pierre Martineau
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France
- INSERM, U896, Montpellier, France
- Université Montpellier1, Montpellier, France
- ICM, Institut régional du Cancer Montpellier, Montpellier, France
- * E-mail:
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Cieślik M, Hoang SA, Baranova N, Chodaparambil S, Kumar M, Allison DF, Xu X, Wamsley JJ, Gray L, Jones DR, Mayo MW, Bekiranov S. Epigenetic coordination of signaling pathways during the epithelial-mesenchymal transition. Epigenetics Chromatin 2013; 6:28. [PMID: 24004852 PMCID: PMC3847279 DOI: 10.1186/1756-8935-6-28] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 07/11/2013] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The epithelial-mesenchymal transition (EMT) is a de-differentiation process required for wound healing and development. In tumors of epithelial origin aberrant induction of EMT contributes to cancer progression and metastasis. Studies have begun to implicate epigenetic reprogramming in EMT; however, the relationship between reprogramming and the coordination of cellular processes is largely unexplored. We have previously developed a system to study EMT in a canonical non-small cell lung cancer (NSCLC) model. In this system we have shown that the induction of EMT results in constitutive NF-κB activity. We hypothesized a role for chromatin remodeling in the sustained deregulation of cellular signaling pathways. RESULTS We mapped sixteen histone modifications and two variants for epithelial and mesenchymal states. Combinatorial patterns of epigenetic changes were quantified at gene and enhancer loci. We found a distinct chromatin signature among genes in well-established EMT pathways. Strikingly, these genes are only a small minority of those that are differentially expressed. At putative enhancers of genes with the 'EMT-signature' we observed highly coordinated epigenetic activation or repression. Furthermore, enhancers that are activated are bound by a set of transcription factors that is distinct from those that bind repressed enhancers. Upregulated genes with the 'EMT-signature' are upstream regulators of NF-κB, but are also bound by NF-κB at their promoters and enhancers. These results suggest a chromatin-mediated positive feedback as a likely mechanism for sustained NF-κB activation. CONCLUSIONS There is highly specific epigenetic regulation at genes and enhancers across several pathways critical to EMT. The sites of these changes in chromatin state implicate several inducible transcription factors with critical roles in EMT (NF-κB, AP-1 and MYC) as targets of this reprogramming. Furthermore, we find evidence that suggests that these transcription factors are in chromatin-mediated transcriptional feedback loops that regulate critical EMT genes. In sum, we establish an important link between chromatin remodeling and shifts in cellular reprogramming.
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Affiliation(s)
- Marcin Cieślik
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Stephen A Hoang
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Natalya Baranova
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Sanjay Chodaparambil
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Manish Kumar
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - David F Allison
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Xiaojiang Xu
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - J Jacob Wamsley
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Lisa Gray
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - David R Jones
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA.,Department of Surgery, University of Virginia, Charlottesville, VA 22908, USA
| | - Marty W Mayo
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
| | - Stefan Bekiranov
- Department of Biochemistry and Molecular Genetics, University of Virginia, 1340 Jefferson Park Ave, P.O. Box 800733, Charlottesville, VA 22908, USA
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Martínez-Aguilar J, Molloy MP. Label-free selected reaction monitoring enables multiplexed quantitation of S100 protein isoforms in cancer cells. J Proteome Res 2013; 12:3679-88. [PMID: 23782132 DOI: 10.1021/pr400251t] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In humans, the S100 protein family is composed of 21 highly related low molecular weight (∼10 kDa) proteins. These proteins are known to have diagnostic, prognostic, and predictive value in a variety of cancers, but their small size and high sequence homology present a challenging scenario for quantitative bioanalytical procedures. Here, we developed a multiplexed, label-free selected reaction monitoring (SRM) assay to specifically measure the S100 protein isoform family in cancer cells. Several normalization parameters associated with label-free SRM quantitation were investigated to derive a method with optimal precision. We detected 11 S100 isoforms across a panel of 9 colon and breast cancer cell lines. The quantitative potential of the S100 assays for biomarker discovery was demonstrated by studying the isogenic cell lines SW480 and SW620, a cellular model of colon cancer progression. Our findings were shown to be in agreement with previously published polysomal mRNA level quantitation for S100 genes in these cell lines. Comparison of the quantitation results using label-free SRM with those obtained using stable-isotope labeled peptide standards demonstrated reliability of the method. These data support the use of SRM to quantitate S100 protein isoforms as these are important players in a broad range of human diseases.
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Affiliation(s)
- Juan Martínez-Aguilar
- Department of Chemistry and Biomolecular Sciences, Macquarie University, Sydney, Australia
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50
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Jin T, Fu J, Feng XJ, Wang SM, Huang X, Zhu MH, Zhang SH. SiRNA-targeted carboxypeptidase D inhibits hepatocellular carcinoma growth. Cell Biol Int 2013; 37:929-39. [PMID: 23589395 DOI: 10.1002/cbin.10113] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Accepted: 04/03/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Tao Jin
- The First Department of Surgery; Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine, Zhejiang University of Traditional Chinese Medicine; Hangzhou, P.R.; China
| | - Jie Fu
- Department of Radiation Oncology; Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University; Shanghai, P.R.; China
| | - Xiao-Jun Feng
- Department of Pathology; Yueyang Hospital, Shanghai University of Traditional Chinese Medicine; Shanghai, P.R.; China
| | - Shou-Mei Wang
- Department of Pathology; Yueyang Hospital, Shanghai University of Traditional Chinese Medicine; Shanghai, P.R.; China
| | - Xue Huang
- Department of Pathology; Yueyang Hospital, Shanghai University of Traditional Chinese Medicine; Shanghai, P.R.; China
| | - Ming-Hua Zhu
- Department of Pathology; Changhai Hospital and Institute of Liver Diseases, Second Military Medical University; Shanghai, P.R.; China
| | - Shu-Hui Zhang
- Department of Pathology; Yueyang Hospital, Shanghai University of Traditional Chinese Medicine; Shanghai, P.R.; China
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