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Wang J, Ford JC, Mitra AK. Defining the Role of Metastasis-Initiating Cells in Promoting Carcinogenesis in Ovarian Cancer. BIOLOGY 2023; 12:1492. [PMID: 38132318 PMCID: PMC10740540 DOI: 10.3390/biology12121492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Ovarian cancer is the deadliest gynecological malignancy with a high prevalence of transcoelomic metastasis. Metastasis is a multi-step process and only a small percentage of cancer cells, metastasis-initiating cells (MICs), have the capacity to finally establish metastatic lesions. These MICs maintain a certain level of stemness that allows them to differentiate into other cell types with distinct transcriptomic profiles and swiftly adapt to external stresses. Furthermore, they can coordinate with the microenvironment, through reciprocal interactions, to invade and establish metastases. Therefore, identifying, characterizing, and targeting MICs is a promising strategy to counter the spread of ovarian cancer. In this review, we provided an overview of OC MICs in the context of characterization, identification through cell surface markers, and their interactions with the metastatic niche to promote metastatic colonization.
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Affiliation(s)
- Ji Wang
- Indiana University School of Medicine-Bloomington, Indiana University, Bloomington, IN 47405, USA; (J.W.); (J.C.F.)
- Melvin and Bren Simon Comprehensive Cancer Center, Indiana University, Indianapolis, IN 46202, USA
| | - James C. Ford
- Indiana University School of Medicine-Bloomington, Indiana University, Bloomington, IN 47405, USA; (J.W.); (J.C.F.)
| | - Anirban K. Mitra
- Indiana University School of Medicine-Bloomington, Indiana University, Bloomington, IN 47405, USA; (J.W.); (J.C.F.)
- Melvin and Bren Simon Comprehensive Cancer Center, Indiana University, Indianapolis, IN 46202, USA
- Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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Zehtabcheh S, Yousefi AM, Momeny M, Bashash D. C-Myc inhibition intensified the anti-leukemic properties of Imatinib in chronic myeloid leukemia cells. Mol Biol Rep 2023; 50:10157-10167. [PMID: 37924446 DOI: 10.1007/s11033-023-08832-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 09/19/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND Due to its remarkable efficacy in producing hematologic, cytogenetic, and molecular remissions, the FDA approved Imatinib as the first-line treatment for newly diagnosed Chronic Myeloid Leukemia (CML) patients. However, in some patients, failure to completely eradicate leukemic cells and the escape of these cells from death will lead to the development of resistance to Imatinib, and many are concerned about the prospects of this Tyrosine Kinase Inhibitor (TKI). It has been documented that the compensatory overexpression of c-Myc is among the most critical mechanisms that promote drug efflux and resistance in CML stem cells. METHODS In order to examine the potential of c-Myc inhibition through the use of 10058-F4 to enhance the anti-leukemic properties of Imatinib, we conducted trypan blue and MTT assays. Additionally, we employed flow cytometric analysis and qRT-PCR to assess the effects of this combination on cell cycle progression and apoptosis. RESULTS The findings of our study indicate that the combination of 10058-F4 and Imatinib exhibited significantly stronger anti-survival and anti-proliferative effects on CML-derived-K562 cells in comparison to either agent administered alone. It is noteworthy that these results were also validated in the CML-derived NALM-1 cell line. Molecular analysis of this synergistic effect revealed that the inhibition of c-Myc augmented the efficacy of Imatinib by modulating the expression of genes related to cell cycle, apoptosis, autophagy, and proteasome. CONCLUSIONS Taken together, the findings of this investigation have demonstrated that the suppression of the c-Myc oncoprotein through the use of 10058-F4 has augmented the effectiveness of Imatinib, suggesting that this amalgamation could offer a fresh perspective on an adjunctive treatment for individuals with CML. Nevertheless, additional scrutiny, encompassing in-vivo examinations and clinical trials, is requisite.
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MESH Headings
- Humans
- Imatinib Mesylate/pharmacology
- Imatinib Mesylate/therapeutic use
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Fusion Proteins, bcr-abl/genetics
- Drug Resistance, Neoplasm/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Protein Kinase Inhibitors/pharmacology
- Protein Kinase Inhibitors/therapeutic use
- Apoptosis
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Affiliation(s)
- Sara Zehtabcheh
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir-Mohammad Yousefi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Momeny
- The Brown Foundation Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Elbadawi M, Boulos JC, Dawood M, Zhou M, Gul W, ElSohly MA, Klauck SM, Efferth T. The Novel Artemisinin Dimer Isoniazide ELI-XXIII-98-2 Induces c-MYC Inhibition, DNA Damage, and Autophagy in Leukemia Cells. Pharmaceutics 2023; 15:pharmaceutics15041107. [PMID: 37111592 PMCID: PMC10144546 DOI: 10.3390/pharmaceutics15041107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/15/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
The proto-oncogenic transcription factor c-MYC plays a pivotal role in the development of tumorigenesis, cellular proliferation, and the control of cell death. Its expression is frequently altered in many cancer types, including hematological malignancies such as leukemia. The dimer isoniazide ELI-XXIII-98-2 is a derivative of the natural product artemisinin, with two artemisinin molecules and an isoniazide moiety as a linker in between them. In this study, we aimed to study the anticancer activity and the molecular mechanisms of this dimer molecule in drug-sensitive CCRF-CEM leukemia cells and their corresponding multidrug-resistant CEM/ADR5000 sub-line. The growth inhibitory activity was studied using the resazurin assay. To reveal the molecular mechanisms underlying the growth inhibitory activity, we performed in silico molecular docking, followed by several in vitro approaches such as the MYC reporter assay, microscale thermophoresis, microarray analyses, immunoblotting, qPCR, and comet assay. The artemisinin dimer isoniazide showed a potent growth inhibitory activity in CCRF-CEM but a 12-fold cross-resistance in multidrug-resistant CEM/ADR5000 cells. The molecular docking of artemisinin dimer isoniazide with c-MYC revealed a good binding (lowest binding energy of −9.84 ± 0.3 kcal/mol) and a predicted inhibition constant (pKi) of 66.46 ± 29.5 nM, which was confirmed by microscale thermophoresis and MYC reporter cell assays. Furthermore, c-MYC expression was downregulated by this compound in microarray hybridization and Western blotting analyses. Finally, the artemisinin dimer isoniazide modulated the expression of autophagy markers (LC3B and p62) and the DNA damage marker pH2AX, indicating the stimulation of both autophagy and DNA damage, respectively. Additionally, DNA double-strand breaks were observed in the alkaline comet assay. DNA damage, apoptosis, and autophagy induction could be attributed to the inhibition of c-MYC by ELI-XXIII-98-2.
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Affiliation(s)
- Mohamed Elbadawi
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University-Mainz, 55128 Mainz, Germany
| | - Joelle C. Boulos
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University-Mainz, 55128 Mainz, Germany
| | - Mona Dawood
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University-Mainz, 55128 Mainz, Germany
- Department of Molecular Biology, Faculty of Medical Laboratory Sciences, Al-Neelain University, Khartoum 12702, Sudan
| | - Min Zhou
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University-Mainz, 55128 Mainz, Germany
| | - Waseem Gul
- ElSohly Laboratories, Inc., 5 Industrial Park Drive, Oxford, MS 38655, USA
| | - Mahmoud A. ElSohly
- ElSohly Laboratories, Inc., 5 Industrial Park Drive, Oxford, MS 38655, USA
| | - Sabine M. Klauck
- Division of Cancer Genome Research, German Cancer Research Center (DKFZ), German Cancer Consortium (DKTK), National Center for Tumor Diseases (NCT), 69120 Heidelberg, Germany
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University-Mainz, 55128 Mainz, Germany
- Correspondence:
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Chen Y, León-Letelier RA, Abdel Sater AH, Vykoukal J, Dennison JB, Hanash S, Fahrmann JF. c-MYC-Driven Polyamine Metabolism in Ovarian Cancer: From Pathogenesis to Early Detection and Therapy. Cancers (Basel) 2023; 15:623. [PMID: 36765581 PMCID: PMC9913358 DOI: 10.3390/cancers15030623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023] Open
Abstract
c-MYC and its paralogues MYCN and MYCL are among the most frequently amplified and/or overexpressed oncoproteins in ovarian cancer. c-MYC plays a key role in promoting ovarian cancer initiation and progression. The polyamine pathway is a bona fide target of c-MYC signaling, and polyamine metabolism is strongly intertwined with ovarian malignancy. Targeting of the polyamine pathway via small molecule inhibitors has garnered considerable attention as a therapeutic strategy for ovarian cancer. Herein, we discuss the involvement of c-MYC signaling and that of its paralogues in promoting ovarian cancer tumorigenesis. We highlight the potential of targeting c-MYC-driven polyamine metabolism for the treatment of ovarian cancers and the utility of polyamine signatures in biofluids for early detection applications.
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Affiliation(s)
| | | | | | | | | | | | - Johannes F. Fahrmann
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Sequera C, Grattarola M, Holczbauer A, Dono R, Pizzimenti S, Barrera G, Wangensteen KJ, Maina F. MYC and MET cooperatively drive hepatocellular carcinoma with distinct molecular traits and vulnerabilities. Cell Death Dis 2022; 13:994. [PMID: 36433941 PMCID: PMC9700715 DOI: 10.1038/s41419-022-05411-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022]
Abstract
Enhanced activation of the transcription factor MYC and of the receptor tyrosine kinase MET are among the events frequently occurring in hepatocellular carcinoma (HCC). Both genes individually act as drivers of liver cancer initiation and progression. However, their concomitant alteration in HCC has not been explored, nor functionally documented. Here, we analysed databases of five independent human HCC cohorts and found a subset of patients with high levels of MYC and MET (MYChigh/METhigh) characterised by poor prognosis. This clinical observation drove us to explore the functionality of MYC and MET co-occurrence in vivo, combining hydrodynamic tail vein injection for MYC expression in the R26stopMet genetic setting, in which wild-type MET levels are enhanced following the genetic deletion of a stop cassette. Results showed that increased MYC and MET expression in hepatocytes is sufficient to induce liver tumorigenesis even in the absence of pre-existing injuries associated with a chronic disease state. Intriguingly, ectopic MYC in MET tumours increases expression of the Mki67 proliferation marker, and switches them into loss of Afp, Spp1, Gpc3, Epcam accompanied by an increase in Hgma1, Vim, and Hep-Par1 levels. We additionally found a switch in the expression of specific immune checkpoints, with an increase in the Ctla-4 and Lag3 lymphocyte co-inhibitory responses, and in the Icosl co-stimulatory responses of tumour cells. We provide in vitro evidence on the vulnerability of some human HCC cell lines to combined MYC and MET targeting, which are otherwise resistant to single inhibition. Mechanistically, combined blockage of MYC and MET converts a partial cytostatic effect, triggered by individual blockage of MYC or MET, into a cytotoxic effect. Together, these findings highlight a subgroup of HCC characterised by MYChigh/METhigh, and document functional cooperativity between MYC and MET in liver tumorigenesis. Thus, the MYC-R26Met model is a relevant setting for HCC biology, patient classification and treatment.
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Affiliation(s)
- Celia Sequera
- grid.462081.90000 0004 0598 4854Aix-Marseille Univ, CNRS, Developmental Biology Institute of Marseille (IBDM), Turing Center for Living Systems, Parc Scientifique de Luminy, Marseille, France
| | - Margherita Grattarola
- grid.462081.90000 0004 0598 4854Aix-Marseille Univ, CNRS, Developmental Biology Institute of Marseille (IBDM), Turing Center for Living Systems, Parc Scientifique de Luminy, Marseille, France ,grid.7605.40000 0001 2336 6580Department of Clinical and Biological Science, University of Turin, 10125 Turin, Italy
| | - Agnes Holczbauer
- grid.66875.3a0000 0004 0459 167XDivision of Gastroenterology, Department of Medicine, Mayo Clinic, Rochester, NY USA
| | - Rosanna Dono
- grid.462081.90000 0004 0598 4854Aix-Marseille Univ, CNRS, Developmental Biology Institute of Marseille (IBDM), Turing Center for Living Systems, Parc Scientifique de Luminy, Marseille, France
| | - Stefania Pizzimenti
- grid.7605.40000 0001 2336 6580Department of Clinical and Biological Science, University of Turin, 10125 Turin, Italy
| | - Giuseppina Barrera
- grid.7605.40000 0001 2336 6580Department of Clinical and Biological Science, University of Turin, 10125 Turin, Italy
| | - Kirk J. Wangensteen
- grid.66875.3a0000 0004 0459 167XDivision of Gastroenterology, Department of Medicine, Mayo Clinic, Rochester, NY USA
| | - Flavio Maina
- grid.462081.90000 0004 0598 4854Aix-Marseille Univ, CNRS, Developmental Biology Institute of Marseille (IBDM), Turing Center for Living Systems, Parc Scientifique de Luminy, Marseille, France
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Guo H, Zhang W, Wang J, Zhao G, Wang Y, Zhu BM, Dong P, Watari H, Wang B, Li W, Tigyi G, Yue J. Cryptotanshinone inhibits ovarian tumor growth and metastasis by degrading c-Myc and attenuating the FAK signaling pathway. Front Cell Dev Biol 2022; 10:959518. [PMID: 36247016 PMCID: PMC9554091 DOI: 10.3389/fcell.2022.959518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/08/2022] [Indexed: 11/13/2022] Open
Abstract
Cryptotanshinone (CT), a natural compound derived from Salvia miltiorrhiza Bunge that is also known as the traditional Chinese medicine Danshen, exhibits antitumor activity in various cancers. However, it remains unclear whether CT has a potential therapeutic benefit against ovarian cancers. The aim of this study was to test the efficacy of CT in ovarian cancer cells in vitro and using a xenograft model in NSG mice orthotopically implanted with HEY A8 human ovarian cancer cells and to explore the molecular mechanism(s) underlying CT’s antitumor effects. We found that CT inhibited the proliferation, migration, and invasion of OVCAR3 and HEY A8 cells, while sensitizing the cell responses to the chemotherapy drugs paclitaxel and cisplatin. CT also suppressed ovarian tumor growth and metastasis in immunocompromised mice orthotopically inoculated with HEY A8 cells. Mechanistically, CT degraded the protein encoded by the oncogene c-Myc by promoting its ubiquitination and disrupting the interaction with its partner protein Max. CT also attenuated signaling via the nuclear focal adhesion kinase (FAK) pathway and degraded FAK protein in both cell lines. Knockdown of c-Myc using lentiviral CRISPR/Cas9 nickase resulted in reduction of FAK expression, which phenocopies the effects of CT and the c-Myc/Max inhibitor 10058-F4. Taken together, our studies demonstrate that CT inhibits primary ovarian tumor growth and metastasis by degrading c-Myc and FAK and attenuating the FAK signaling pathway.
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Affiliation(s)
- Huijun Guo
- Department of Pathogen Biology and Immunology, College of Life Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Wenjing Zhang
- Department of Genetics, Genomics and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
| | - Jiaxing Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Guannan Zhao
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Yaohong Wang
- Department of Pathology, Immunology and Microbiology, Vanderbilt University, Nashville, TN, United States
| | - Bing-Mei Zhu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
| | - Peixin Dong
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Baojin Wang
- Department of Gynecology and Obstetrics, Third Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Gabor Tigyi
- Department of Physiology, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
| | - Junming Yue
- Department of Pathology and Laboratory Medicine, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, United States
- *Correspondence: Junming Yue, ; Wenjing Zhang, ; Bing-Mei Zhu,
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Identification of a novel mechanism for reversal of doxorubicin-induced chemotherapy resistance by TXNIP in triple-negative breast cancer via promoting reactive oxygen-mediated DNA damage. Cell Death Dis 2022; 13:338. [PMID: 35414060 PMCID: PMC9005717 DOI: 10.1038/s41419-022-04783-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/14/2022] [Accepted: 02/18/2022] [Indexed: 12/28/2022]
Abstract
Given that triple-negative breast cancer (TNBC) lacks specific receptors (estrogen and progesterone receptors and human epidermal growth factor receptor 2) and cannot be treated with endocrine therapy, chemotherapy has remained the mainstay of treatment. Drug resistance is reportedly the main obstacle to the clinical use of doxorubicin (DOX) in this patient population. Accordingly, screening molecules related to chemoresistance and studying their specific mechanisms has clinical significance for improving the efficacy of chemotherapy in TNBC patients. Thioredoxin-interacting protein (TXNIP) is a metabolism-related protein that plays a tumor suppressor role in various malignant tumors; however, the specific role of TXNIP in tumor chemoresistance has not been reported. In the present study, we explored the potential molecular mechanism of TXNIP in the chemoresistance of TNBC for the first time. The results showed that TXNIP inhibited the proliferation of TNBC drug-resistant cells and promoted apoptosis in vitro and in vivo. Furthermore, TXNIP promoted the synthesis of reactive oxygen species (ROS) and the accumulation of DNA damage caused by DOX and increased γ-H2AX levels in a time and dose-dependent manner. Moreover, ROS scavenger pretreatment could block DNA damage induced by TXNIP and restore the resistance of TNBC resistant cells to DOX to a certain extent. In addition, we found that the small molecule c-Myc inhibitor 10058-F4 promoted TXNIP expression, increased ROS synthesis in cells, and could enhance the cytotoxicity of chemotherapy drugs in vitro and in vivo when combined with DOX. These results indicated that c-Myc inhibitor 10058-F4 could induce TXNIP upregulation in TNBC drug-resistant cells, and the upregulated TXNIP increased the accumulation of ROS-dependent DNA damage, thereby decreasing chemotherapy resistance of TNBC. Our findings reveal a new mechanism of mediating drug resistance and provide a new drug combination strategy to overcome DOX resistance in TNBC.
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Jie Z, Jinna Z, Jingjun Z, Pengcheng L, Fang Y, Qinyang C, Taiyu C, Hequn J, Tao R. Antitumor Effects of 10058-F4 and Curcumin in Combination Therapy for Pancreatic Cancer In Vitro and In Vivo. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:1620802. [PMID: 35368919 PMCID: PMC8970865 DOI: 10.1155/2022/1620802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 12/30/2022]
Abstract
Background Pancreatic cancer (PC) stands out as one of the most lethal cancers. Due to late diagnosis, only a fraction of patients can be resected. Although it still has significant adverse effects and poor results, the treatment is connected with better overall survival than the prior treatment. Thus, new alternative therapy for advanced PC is needed. Materials/Methods. The impact of 10058-F4 and curcumin combination therapy on apoptosis and cell growth in SW1990 pancreatic cancer cells were determined in vitro using the CCK-8 assay and flow cytometry of Annexin V-FITC/PI, and the in vivo antitumor effect was determined utilizing SW1990-bearing pancreatic tumor mouse models induced by subcutaneous implantation. Results At concentrations of (10 mol/L+2 mol/L), 10058-F4+curcumin obtained the highest rate of SW1990 cell death, and they had a beneficial effect on SW1990 pancreatic tumor-bearing animals. Furthermore, c-Myc, Akt phosphorylation, and the expression of apoptosis-related molecular were reduced, and the combination therapy modified the expression of apoptosis-related molecular. Conclusions In vitro and in vivo, the combination of 10058-F4 plus curcumin has antipancreatic cancer actions that are substantially effective.
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Affiliation(s)
- Zhang Jie
- Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Si Chuan, China
| | - Zhang Jinna
- No.4 West China Teaching Hospital of Si Chuan University, Si Chuan, China
| | - Zhang Jingjun
- The People's Hospital of JianYang City, Si Chuan, China
| | - Li Pengcheng
- Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Si Chuan, China
| | - Yang Fang
- Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Si Chuan, China
| | | | - Chen Taiyu
- Chengdu Medical College, Si Chuan, China
| | - Jiang Hequn
- South China Hospital of Shenzhen University, Guang Dong, China
| | - Ren Tao
- Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Si Chuan, China
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Zhang J, Yang P, Liu D, Gao M, Wang J, Yu T, Zhang X, Liu Y. Inhibiting Hyper-O-GlcNAcylation of c-Myc accelerate diabetic wound healing by alleviating keratinocyte dysfunction. BURNS & TRAUMA 2021; 9:tkab031. [PMID: 34646892 PMCID: PMC8499626 DOI: 10.1093/burnst/tkab031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/28/2021] [Indexed: 01/13/2023]
Abstract
Background Diabetic foot ulcers characterized by delayed healing are one of the main complications of diabetes. Epidermal keratinocyte dysfunction has been found to play a pivotal role in the poor healing ability of diabetic wounds. In this study, we aimed to explore the relationship between c-Myc and its O-linked N-acetylglucosamine (O-GlcNAc) glycosylation (O-GlcNAcylation) modification and keratinocyte dysfunction in diabetic wounds. Methods Clinical wound samples were collected and a full-thickness skin defect wound model of diabetic rats was established. Re-epithelialization of wounds was observed by H&E staining and expressions of proliferating cell nuclear antigen, transglutaminase 1, loricrin, c-Myc and O-GlcNAc were measured by immunohistochemistry. The functional changes of proliferation, migration and differentiation of human immortalized epidermal cells (HaCaT) cells after overexpression or knockdown of c-Myc were observed. O-GlcNAcylation of c-Myc was confirmed using immunoprecipitation and proximity ligation assay. Stability of the c-Myc protein was measured using cycloheximide. Wound healing was observed after topical application of compounds that inhibited c-Myc or O-GlcNAc on diabetic wounds. Results Keratinocytes at the diabetic wound margin were characterized by active proliferation and division, slow migration and poor differentiation. Similar phenomena were observed in HaCaT cells cultured in 30 mM glucose and keratinocytes at the wound margin of the diabetic rats. The expression of c-Myc was increased in keratinocytes at the wound margin of diabetic rats, patients, and in HaCaT cells cultured with 30 mM glucose. Increased expression of c-Myc promoted the proliferation while inhibiting the migration and differentiation of the HaCaT cells, and inhibition of c-Myc promoted diabetic wound healing. Increased O-GlcNAcylation of c-Myc with 30 mM glucose stabilized the c-Myc proteins. Inhibition of O-GlcNAc ameliorated keratinocyte dysfunction and promoted diabetic wound healing. Conclusions Increased expression of c-Myc promoted abnormal proliferation and inhibited migration and differentiation of keratinocytes at the diabetic wound margin. Increased O-GlcNAcylation of c-Myc with 30 mM glucose stabilized the c-Myc proteins. Inhibition of c-Myc or O-GlcNAc alleviated delayed diabetic wound healing. These findings make c-Myc and O-GlcNAc potential therapeutic targets for diabetic wounds.
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Affiliation(s)
- Jie Zhang
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Peilang Yang
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Dan Liu
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Min Gao
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jizhuang Wang
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Tianyi Yu
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Xiong Zhang
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Yan Liu
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Yan Y, Zhang Y, Li M, Zhang Y, Zhang X, Zhang X, Xu Y, Wei W, Wang J, Xu X, Song Q, Zhao C. C644-0303, a small-molecule inhibitor of the Wnt/β-catenin pathway, suppresses colorectal cancer growth. Cancer Sci 2021; 112:4722-4735. [PMID: 34431598 PMCID: PMC8586673 DOI: 10.1111/cas.15118] [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: 04/07/2021] [Revised: 08/13/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
The Wnt/β‐catenin signaling pathway plays an important role in tissue homeostasis, and its malignant activation is closely related to the occurrence and development of many cancers, especially colorectal cancer with adenomatous polyposis coli (APC) and CTNNB1 mutations. By applying a TCF/lymphoid‐enhancing factor (LEF) luciferase reporter system, the high‐throughput screening of 18 840 small‐molecule compounds was performed. A novel scaffold compound, C644‐0303, was identified as a Wnt/β‐catenin signaling inhibitor and exhibited antitumor efficacy. It inhibited both constitutive and ligand activated Wnt signals and its downstream gene expression. Functional studies showed that C644‐0303 causes cell cycle arrest, induces apoptosis, and inhibits cancer cell migration. Moreover, transcription factor array indicated that C644‐0303 could suppress various tumor‐promoting transcription factor activities in addition to Wnt/β‐catenin. Finally, C644‐0303 suppressed tumor spheroidization in a 3‐dimensional cell culture model and inhibited xenograft tumor growth in mice. In conclusion, we report a novel structural small molecular inhibitor targeting the Wnt/β‐catenin signaling pathway that has therapeutic potential for colorectal cancer treatment.
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Affiliation(s)
- Yu Yan
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Yidan Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Mengyuan Li
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Yazhuo Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xinxin Zhang
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiaonan Zhang
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yuting Xu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Wei Wei
- School of Life Science, Lanzhou University, Lanzhou, China
| | - Jie Wang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Xiaohan Xu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China
| | - Qiaoling Song
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Chenyang Zhao
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, China.,Innovation Platform of Marine Drug Screening & Evaluation, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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11
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Ghaffarnia R, Nasrollahzadeh A, Bashash D, Nasrollahzadeh N, Mousavi SA, Ghaffari SH. Inhibition of c-Myc using 10058-F4 induces anti-tumor effects in ovarian cancer cells via regulation of FOXO target genes. Eur J Pharmacol 2021; 908:174345. [PMID: 34270986 DOI: 10.1016/j.ejphar.2021.174345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/06/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Ovarian cancer, characterized by rapid growth and asymptomatic development in the early stage, is the fifth common cancer in women. The deregulated expression of c-Myc in more than 50% of human tumors including ovarian cancer makes this oncogenic master transcription factor a potential therapeutic target for cancer treatment. In the present study, we evaluated the anti-tumor effects of 10058-F4, a small molecule c-Myc inhibitor, on ovarian cancer cells. We found that 10058-F4 not only inhibited the proliferation and clonal growth of ovarian cancer cells but also enhanced the cytotoxic effects of chemotherapeutic drugs. Our results also revealed that c-Myc inhibition using 10058-F4 increased the intracellular reactive oxygen species production coupled with suppressed expression of hTERT. RT-qPCR analysis indicated that 10058-F4 enhanced the mRNA levels of the forkhead box O (FOXO) family of transcription factors, including FOXO1, 3, and 4. Moreover, 10058-F4 induced G1 cell cycle arrest in 2008C13 ovarian cancer cells, along with increased expression of some key targets of FOXOs involved in the regulation of cell cycle such as p15, p21, p27, and GADD45A. The results of our study also showed that the 10058-F4-induced apoptosis in 2008C13 cell line was associated with the upregulation of FOXO downstream genes, including PUMA, Bim, and FasL. In conclusion, our results, for the first time, suggest that the anti-tumor effects of 10058-F4 in ovarian cancer cells might be mediated through upregulation of FOXO transcription factors and their key target genes involved in G1 cell cycle arrest, apoptosis, and autophagic cell death.
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Affiliation(s)
- Roya Ghaffarnia
- Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Nasrollahzadeh
- Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Seyed A Mousavi
- Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed H Ghaffari
- Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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12
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Gene Transactivation and Transrepression in MYC-Driven Cancers. Int J Mol Sci 2021; 22:ijms22073458. [PMID: 33801599 PMCID: PMC8037706 DOI: 10.3390/ijms22073458] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/11/2022] Open
Abstract
MYC is a proto-oncogene regulating a large number of genes involved in a plethora of cellular functions. Its deregulation results in activation of MYC gene expression and/or an increase in MYC protein stability. MYC overexpression is a hallmark of malignant growth, inducing self-renewal of stem cells and blocking senescence and cell differentiation. This review summarizes the latest advances in our understanding of MYC-mediated molecular mechanisms responsible for its oncogenic activity. Several recent findings indicate that MYC is a regulator of cancer genome and epigenome: MYC modulates expression of target genes in a site-specific manner, by recruiting chromatin remodeling co-factors at promoter regions, and at genome-wide level, by regulating the expression of several epigenetic modifiers that alter the entire chromatin structure. We also discuss novel emerging therapeutic strategies based on both direct modulation of MYC and its epigenetic cofactors.
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13
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Reyes-González JM, Vivas-Mejía PE. c-MYC and Epithelial Ovarian Cancer. Front Oncol 2021; 11:601512. [PMID: 33718147 PMCID: PMC7952744 DOI: 10.3389/fonc.2021.601512] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Ovarian cancer is the deadliest of gynecological malignancies with approximately 49% of women surviving 5 years after initial diagnosis. The standard of care for ovarian cancer consists of cytoreductive surgery followed by platinum-based combination chemotherapy. Unfortunately, despite initial response, platinum resistance remains a major clinical challenge. Therefore, the identification of effective biomarkers and therapeutic targets is crucial to guide therapy regimen, maximize clinical benefit, and improve patient outcome. Given the pivotal role of c-MYC deregulation in most tumor types, including ovarian cancer, assessment of c-MYC biological and clinical relevance is essential. Here, we briefly describe the frequency of c-MYC deregulation in ovarian cancer and the consequences of its targeting.
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Affiliation(s)
- Jeyshka M Reyes-González
- Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Pablo E Vivas-Mejía
- Department of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico.,Comprehensive Cancer Center, University of Puerto Rico, San Juan, Puerto Rico
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14
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Ofori S, Gukathasan S, Awuah SG. Gold-Based Pharmacophore Inhibits Intracellular MYC Protein. Chemistry 2021; 27:4168-4175. [PMID: 33275307 PMCID: PMC8605874 DOI: 10.1002/chem.202004962] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/03/2020] [Indexed: 12/13/2022]
Abstract
Direct targeting of intrinsically disordered proteins, including MYC, by small molecules for biomedical applications would resolve a longstanding issue in chemical biology and medicine. Thus, we developed gold-based small-molecule MYC reagents that engage MYC inside cells and modulate MYC transcriptional activity. Lead compounds comprise an affinity ligand and a gold(I) or gold(III) warhead capable of protein chemical modification. Cell-based MYC target engagement studies via CETSA and co-immunoprecipitation reveal specific interaction of compounds with MYC in cells. The lead gold(I) reagent, 1, demonstrates superior cell-killing potential (up to 35-fold) in a MYC-dependent manner when compared to 10058-F4 in cells including the TNBC, MDA-MB-231. Subsequently, 1 suppresses MYC transcription factor activity via functional colorimetric assays, and gene-profiling using whole-cell transcriptomics reveals significant modulation of MYC target genes by 1. These findings point to metal-mediated ligand affinity chemistry (MLAC) based on gold as a promising strategy to develop chemical probes and anticancer therapeutics targeting MYC.
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Affiliation(s)
- Samuel Ofori
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington Kentucky, 40506
| | - Sailajah Gukathasan
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington Kentucky, 40506
| | - Samuel G. Awuah
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington Kentucky, 40506
- Center for Pharmaceutical and Research Innovation, College of Pharmacy, Department of Pharmaceutical Sciences, University of Kentucky, Lexington Kentucky, 40536
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15
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Madden SK, de Araujo AD, Gerhardt M, Fairlie DP, Mason JM. Taking the Myc out of cancer: toward therapeutic strategies to directly inhibit c-Myc. Mol Cancer 2021; 20:3. [PMID: 33397405 PMCID: PMC7780693 DOI: 10.1186/s12943-020-01291-6] [Citation(s) in RCA: 163] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/29/2020] [Indexed: 02/07/2023] Open
Abstract
c-Myc is a transcription factor that is constitutively and aberrantly expressed in over 70% of human cancers. Its direct inhibition has been shown to trigger rapid tumor regression in mice with only mild and fully reversible side effects, suggesting this to be a viable therapeutic strategy. Here we reassess the challenges of directly targeting c-Myc, evaluate lessons learned from current inhibitors, and explore how future strategies such as miniaturisation of Omomyc and targeting E-box binding could facilitate translation of c-Myc inhibitors into the clinic.
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Affiliation(s)
- Sarah K Madden
- Department of Biology & Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Aline Dantas de Araujo
- Division of Chemistry and Structural Biology and ARC 1066 Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Mara Gerhardt
- Department of Biology & Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - David P Fairlie
- Division of Chemistry and Structural Biology and ARC 1066 Centre of Excellence for Innovations in Peptide and Protein Science, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jody M Mason
- Department of Biology & Biochemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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16
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Zhang J, Yang P, Liu D, Gao M, Wang J, Wang X, Liu Y, Zhang X. c-Myc Upregulated by High Glucose Inhibits HaCaT Differentiation by S100A6 Transcriptional Activation. Front Endocrinol (Lausanne) 2021; 12:676403. [PMID: 34060533 PMCID: PMC8163689 DOI: 10.3389/fendo.2021.676403] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/30/2021] [Indexed: 01/13/2023] Open
Abstract
Keratinocyte differentiation dysfunction in diabetic skin is closely related to impaired skin barrier functions. We investigated the effects of c-Myc and S100A6 on Human immortal keratinocyte line (HaCaT) or keratinocyte differentiation and potential mechanisms. The expression levels of differentiation makers such as transglutaminase 1 (TGM1), loricrin (LOR), and keratin 1 (K1) were significantly reduced, while the expression of c-Myc was significantly increased in HaCaT cells cultured in high glucose and wound margin keratinocytes from diabetic rats and human patients. Overexpression of c-Myc caused differentiation dysfunction of HaCaT, while knocking down c-Myc promoted differentiation. High glucose increased the expression of c-Myc and inhibited differentiation in HaCaT cells by activating the WNT/β-catenin pathway. Moreover, inhibition of c-Myc transcriptional activity alleviated the differentiation dysfunction caused by high glucose or overexpression of c-Myc. c-Myc binds to the S100A6 promoter to directly regulate S100A6 expression and high glucose promoted S100A6 transcription. The expression of S100A6 was increased in HaCaT cultured with high glucose and wound margin keratinocytes from diabetic rats and human patients. However, the expression of S100A6 was decreased during normal HaCaT differentiation. HaCaT cells treated with S100A6 recombinant protein showed differentiation dysfunction. The expressions of TGM1, LOR and K1 in knockdown S100A6 HaCaT cells were higher than those in the control group. Overexpression of c-Myc or high glucose caused differentiation dysfunction of HaCaT cells, and was rescued by knocking down S100A6. These findings illustrate a new mechanism by which c-Myc upregulated by high glucose inhibits HaCaT differentiation by directly activating S100A6 transcription. Thus, c-Myc and S100A6 may be potential targets for the treatment of chronic diabetic wounds.
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Affiliation(s)
| | | | | | | | | | - Xiqiao Wang
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
| | - Yan Liu
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
| | - Xiong Zhang
- *Correspondence: Xiong Zhang, ; Yan Liu, ; Xiqiao Wang,
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17
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Sayyadi M, Safaroghli-Azar A, Pourbagheri-Sigaroodi A, Abolghasemi H, Anoushirvani AA, Bashash D. c-Myc Inhibition Using 10058-F4 Increased the Sensitivity of Acute Promyelocytic Leukemia Cells to Arsenic Trioxide Via Blunting PI3K/NF-κB Axis. Arch Med Res 2020; 51:636-644. [DOI: 10.1016/j.arcmed.2020.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 04/03/2020] [Accepted: 06/03/2020] [Indexed: 12/19/2022]
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18
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Sayyadi M, Safaroghli-Azar A, Safa M, Abolghasemi H, Momeny M, Bashash D. NF-κB-dependent Mechanism of Action of c-Myc Inhibitor 10058-F4: Highlighting a Promising Effect of c-Myc Inhibition in Leukemia Cells, Irrespective of p53 Status. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 19:153-165. [PMID: 32922477 PMCID: PMC7462502 DOI: 10.22037/ijpr.2020.112926.14018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Due to the frequent contribution in the pathogenesis of different human malignancies, c-Myc is among those transcription factors that are believed to be pharmacologically targeted for cancer therapeutic approaches. In the present study, we examined the anti-leukemic effect of a well-known c-Myc inhibitor 10058-F4 on a panel of hematologic malignant cells harboring either mutant or wild-type p53. Notably, we found that the suppression of c-Myc was coupled with the reduction in the survival of all the tested leukemic cells; however, as far as we are aware, this study suggests for the first time that the cytotoxic effect of 10058-F4 was not significantly affected by the molecular status of p53. Delving into the molecular mechanisms of the inhibitor in the most sensitive cell line revealed that 10058-F4 could induce apoptotic cell death in mutant p53-expressing NB4 cells through the suppression of NF-κB pathway coupled with a significant induction of intracellular reactive oxygen species (ROS). In addition, we found that the anti-leukemic effect of 10058-F4 was overshadowed, at least partially, through the compensatory activation of the PI3K signaling pathway; highlighting a plausible attenuating role of this axis on 10058-F4 cytotoxicity. In conclusion, the results of the present study shed light on the favorable anti-leukemic effect of 10058-F4, especially in combination with PI3K inhibitors in acute promyelocytic leukemia; however, further investigations should be accomplished to determine the efficacy of the inhibitor, either as a single agent or in a combined-modal strategy, in leukemia treatment.
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Affiliation(s)
- Mohammad Sayyadi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ava Safaroghli-Azar
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Safa
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Hassan Abolghasemi
- Pediatric Congenital Hematologic Disorders Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Momeny
- Cancer Cell Signaling, Turku Center for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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19
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Mobasheri T, Rayzan E, Shabani M, Hosseini M, Mahmoodi Chalbatani G, Rezaei N. Neuroblastoma-targeted nanoparticles and novel nanotechnology-based treatment methods. J Cell Physiol 2020; 236:1751-1775. [PMID: 32735058 DOI: 10.1002/jcp.29979] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022]
Abstract
Neuroblastoma is a complicated pediatric tumor, originating from the neural crest, which is the most prevalent in adrenal glands, but may rarely be seen in some other tissues as well. Studies are focused on developing new strategies through novel chemo- and immuno-therapeutic drug targets. Different types of oncogenes such as MYCN, tumor suppressor genes such as p53, and some structural genes such as vascular endothelial growth factor are considered as targets for neuroblastoma therapy. The individual expression patterns in NB cells make them appropriate for this purpose. The combined effect of nano-drug delivery systems and specific drug targets will result in lower systemic side effects, prolonged therapeutic effects, and improvements in the pharmacokinetic properties of the drugs. Some of these novel drug delivery systems with a focus on liposomes as carriers are also discussed. In this review, genes and protein products that are beneficial as drug targets in the treatment of neuroblastoma have been discussed.
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Affiliation(s)
- Taranom Mobasheri
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Elham Rayzan
- International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,Research Center for Immunodeficiencies (RCID), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsima Shabani
- Research Center for Immunodeficiencies (RCID), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,International Hematology/Oncology of Pediatrics Experts (IHOPE), Universal Scientific Education and Research Network (USERN), Baltimore, Maryland
| | - Mina Hosseini
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Nima Rezaei
- Research Center for Immunodeficiencies (RCID), Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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20
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Kessel SL, Chan LLY. A High-Throughput Image Cytometry Method for the Formation, Morphometric, and Viability Analysis of Drug-Treated Mammospheres. SLAS DISCOVERY 2020; 25:723-733. [PMID: 32396489 DOI: 10.1177/2472555220922817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The nonadherent mammosphere assay has been commonly used to investigate cancer stem cell activities in breast cancers that have the ability to form tumorspheres and maintain tumor growth. The sphere formation step is critical, in that it enables the construction of the mammosphere models for downstream assays. The mammosphere assay has also been used to assess the effects of drug treatment on the tumorspheres formed from primary cancer cells or cell lines. Traditionally, the mammosphere formation has been evaluated by standard microscopy systems that required external software for additional analyses. However, this method can be time-consuming and low-throughput, thus impractical for high-throughput characterization of mammosphere models and screening for potential therapeutic cancer drugs. To overcome these challenges, we developed a plate-based high-throughput method to rapidly analyze mammospheres in whole wells using the Celigo Image Cytometer. The method is employed to characterize mammosphere formation and morphology for adherent and nonadherent propagation of four breast cancer cell lines (MCF7, MDA-MB-436, MDA-MB-231, and SKBR3). Next, the dose-dependent effects of four small molecule drugs (doxorubicin, paclitaxel, 8-quinolinol, and salinomycin) are characterized based on sphere formation and viability stained with calcein AM and propidium iodide. We observed growth and morphometric differences between adherent and nonadherent propagation of the four cell lines. Furthermore, drug treatments induced various effects on mammosphere formation, morphology, and viability. The proposed image cytometry method provides a useful tool suitable for high-throughput characterization and analysis of mammospheres, which can improve assay efficiency when investigating the formation capabilities and drug-induced cytotoxicity effects.
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Affiliation(s)
- Sarah L Kessel
- Department of Advanced Technology R&D, Nexcelom Bioscience LLC, Lawrence, MA, USA
| | - Leo Li-Ying Chan
- Department of Advanced Technology R&D, Nexcelom Bioscience LLC, Lawrence, MA, USA
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21
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Chen W, Liang JL, Zhou K, Zeng QL, Ye JW, Huang MJ. Effect of CIP2A and its mechanism of action in the malignant biological behavior of colorectal cancer. Cell Commun Signal 2020; 18:67. [PMID: 32321509 PMCID: PMC7178757 DOI: 10.1186/s12964-020-00545-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 03/06/2020] [Indexed: 02/07/2023] Open
Abstract
Background Increasing evidence has revealed a close correlation between cancerous inhibitor of protein phosphatase 2A (CIP2A) and cancer progression. CIP2A has been shown to participate in diverse biological processes, such as development, tumorigenic transformation and chemoresistance. However, the functions of CIP2A in colorectal cancer (CRC) and its underlying mechanisms of action are not yet completely understood. The purpose of this study was to explore its clinical significance, function and relevant pathways in CRC. Methods Quantitative RT-PCR (qRT-PCR), immunohistochemistry (IHC), western blotting and enzyme-linked immunosorbent assay (ELISA) were used to identify the expression of CIP2A in CRC tissues, sera and CRC cell lines. The association between the expressions of CIP2A and patient survival was analyzed using the Kaplan-Meier curves. Additionally, the functional role of CIP2A in the cell lines was identified through small interfering RNA (siRNA)-mediated depletion of the protein followed by analyses of proliferation and xenograft growth in vivo using short hairpin (sh) RNAs. Effects of the C-myc inhibitor 10,058-F4 on the expressions of C-myc, and CIP2A in CRC cell lines and its potential mechanisms of action were investigated. Finally, the potential molecular pathways associated with CIP2A were screened using the phosphokinase array and identified through western blotting. Results CIP2A mRNA and protein levels were upregulated in CRC tissues compared to those of the corresponding normal tissues. It can be used as an independent prognostic indicator to determine overall survival (OS) and disease-free survival (DFS). Depletion of CIP2A substantially suppressed the growth of CRC cells and colony formation in vitro, and inhibited the growth of xenograft tumors in vivo. Additionally, the levels of CIP2A in the sera of patients with CRC were higher than those of the control subjects. Multivariate analyses revealed that the levels of CIP2A in the sera were not independent prognostic indicators in patients with CRC. Moreover, 10,058-F4 could effectively inhibit the growth of CRC cells in vitro, which could be correlated with an inhibition in the expressions of C-myc, CIP2A and its downstream regulatory anti-apoptotic proteins. Furthermore, the Human Phosphokinase Antibody Array was used to gain insights into the CIP2A-dependent intermediary signaling pathways. The results revealed that several signaling pathways were affected and the protein levels of p-p53 (S392), p-STAT5a (Y694), Cyclin D1, p-ERK1/2 and p-AKT (T308) had decreased in CIP2A-shRNA group based on the results of the western blot analysis. Conclusions CIP2A could promote the development of CRC cells and predict poor prognosis in patients with CRC, suggesting that it may serve as a potential prognostic marker and therapeutic target against CRC. Video Abstract
Graphical abstract ![]()
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Affiliation(s)
- Wei Chen
- Department of Colorectal Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
| | - Jing-Lin Liang
- Department of Colorectal Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
| | - Kai Zhou
- Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China
| | - Qing-Li Zeng
- Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.,The 334 Hospital Affiliated of Nanchang University, Nanchang, 330024, Jiangxi, China
| | - Jun-Wen Ye
- Department of Colorectal Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China.,Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China
| | - Mei-Jin Huang
- Department of Colorectal Surgery, The Six Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, China. .,Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China. .,Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510655, China.
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22
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Sheikh‐Zeineddini N, Safaroghli-azar A, Salari S, Bashash D. C-Myc inhibition sensitizes pre-B ALL cells to the anti-tumor effect of vincristine by altering apoptosis and autophagy: Proposing a probable mechanism of action for 10058-F4. Eur J Pharmacol 2020; 870:172821. [DOI: 10.1016/j.ejphar.2019.172821] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/17/2019] [Accepted: 11/20/2019] [Indexed: 02/06/2023]
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23
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Wang XN, Su XX, Cheng SQ, Sun ZY, Huang ZS, Ou TM. MYC modulators in cancer: a patent review. Expert Opin Ther Pat 2019; 29:353-367. [PMID: 31068032 DOI: 10.1080/13543776.2019.1612878] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
INTRODUCTION The important role of MYC in tumorigenesis makes it particularly important to design MYC modulators. Over the past decade, researchers have raised a number of strategies for designing MYC modulators, some of which are already in clinical trials. This paper aims to review the patents of MYC modulators. AREAS COVERED The important biological relevance of c-MYC and the regulation pathways related to c-MYC are briefly introduced. Base on that, the MYC modulators reported in published patents and references primarily for cancer treatment are outlined, highlighting the structures and biological activities. EXPERT OPINION There has been a growing awareness of finding and designing MYC modulators as novel anticancer drugs over recent years. Patents involving the discovery, synthesis, and application of MYC modulators are particularly important for further development in this field. Although finding direct MYC inhibitors or binders is challenging, MYC cannot be simply defined as an undruggable target. There is still substantial evidence proving the concept that MYC modulators can benefit to the treatment of both human hematological malignancies and solid tumors. More efforts should be taken to improve the activity and specificity of MYC modulators.
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Affiliation(s)
- Xiao-Na Wang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
| | - Xiao-Xuan Su
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
| | - Sui-Qi Cheng
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
| | - Zhi-Yin Sun
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
| | - Zhi-Shu Huang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
| | - Tian-Miao Ou
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , Guangdong , China
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24
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Sheikh‐Zeineddini N, Bashash D, Safaroghli‐Azar A, Riyahi N, Shabestari RM, Janzamin E, Safa M. Suppression of c‐Myc using 10058‐F4 exerts caspase‐3‐dependent apoptosis and intensifies the antileukemic effect of vincristine in pre‐B acute lymphoblastic leukemia cells. J Cell Biochem 2019; 120:14004-14016. [DOI: 10.1002/jcb.28675] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 02/05/2019] [Accepted: 02/14/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Negar Sheikh‐Zeineddini
- Department of Hematology and Blood Banking, School of Allied Medical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Ava Safaroghli‐Azar
- Department of Hematology and Blood Banking, School of Allied Medical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Niknam Riyahi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Rima Manafi Shabestari
- Department of Hematology and Blood Banking, Faculty of Allied Medicine Iran University of Medical Sciences Tehran Iran
| | | | - Majid Safa
- Department of Hematology and Blood Banking, Faculty of Allied Medicine Iran University of Medical Sciences Tehran Iran
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25
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Small molecule inhibitor of c-Myc 10058-F4 inhibits proliferation and induces apoptosis in acute leukemia cells, irrespective of PTEN status. Int J Biochem Cell Biol 2019; 108:7-16. [DOI: 10.1016/j.biocel.2019.01.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/15/2018] [Accepted: 01/08/2019] [Indexed: 11/18/2022]
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26
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Chong SJF, Lai JXH, Eu JQ, Bellot GL, Pervaiz S. Reactive Oxygen Species and Oncoprotein Signaling-A Dangerous Liaison. Antioxid Redox Signal 2018; 29:1553-1588. [PMID: 29186971 DOI: 10.1089/ars.2017.7441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
SIGNIFICANCE There is evidence to implicate reactive oxygen species (ROS) in tumorigenesis and its progression. This has been associated with the interplay between ROS and oncoproteins, resulting in enhanced cellular proliferation and survival. Recent Advances: To date, studies have investigated specific contributions of the crosstalk between ROS and signaling networks in cancer initiation and progression. These investigations have challenged the established dogma of ROS as agents of cell death by demonstrating a secondary function that fuels cell proliferation and survival. Studies have thus identified (onco)proteins (Bcl-2, STAT3/5, RAS, Rac1, and Myc) in manipulating ROS level as well as exploiting an altered redox environment to create a milieu conducive for cancer formation and progression. CRITICAL ISSUES Despite these advances, drug resistance and its association with an altered redox metabolism continue to pose a challenge at the mechanistic and clinical levels. Therefore, identifying specific signatures, altered protein expressions, and modifications as well as protein-protein interplay/function could not only enhance our understanding of the redox networks during cancer initiation and progression but will also provide novel targets for designing specific therapeutic strategies. FUTURE DIRECTIONS Not only a heightened realization is required to unravel various gene/protein networks associated with cancer formation and progression, particularly from the redox standpoint, but there is also a need for developing more sensitive tools for assessing cancer redox metabolism in clinical settings. This review attempts to summarize our current knowledge of the crosstalk between oncoproteins and ROS in promoting cancer cell survival and proliferation and treatment strategies employed against these oncoproteins. Antioxid. Redox Signal.
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Affiliation(s)
- Stephen Jun Fei Chong
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Jolin Xiao Hui Lai
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Jie Qing Eu
- 2 Cancer Science Institute , Singapore, Singapore
| | - Gregory Lucien Bellot
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,3 Department of Hand and Reconstructive Microsurgery, National University Health System , Singapore, Singapore
| | - Shazib Pervaiz
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,4 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,5 National University Cancer Institute, National University Health System , Singapore, Singapore .,6 School of Biomedical Sciences, Curtin University , Perth, Australia
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27
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Zhong X, Lee HN, Kim SH, Park SA, Kim W, Cha YN, Surh YJ. Myc-nick promotes efferocytosis through M2 macrophage polarization during resolution of inflammation. FASEB J 2018; 32:5312-5325. [PMID: 29718706 DOI: 10.1096/fj.201800223r] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A key event required for effective resolution of inflammation is efferocytosis, which is defined as phagocytic removal of apoptotic cells mostly by macrophages acquiring an alternatively activated phenotype (M2). c-Myc has been reported to play a role in alternative activation of human macrophages and is proposed as one of the M2 macrophage markers. We found that M2-like peritoneal macrophages from zymosan A-treated mice exhibited a marked accumulation of Myc-nick, a truncated protein generated by a Calpain-mediated proteolytic cleavage of full-length c-Myc. Further, ectopic expression of Myc-nick in murine bone marrow-derived macrophages promoted the M2 polarization and, consequently, enhanced their efferocytic capability. Notably, Myc-nick-induced efferocytosis was found to be tightly associated with α-tubulin acetylation by K acetyltransferase 2a (Kat2a/Gcn5) activity. These findings suggest Myc-nick as a novel proresolving mediator that has a fundamental function in maintaining homeostasis under inflammatory conditions.-Zhong, X., Lee, H.-N., Kim, S. H., Park, S.-A., Kim, W., Cha, Y.-N., Surh, Y.-J. Myc-nick promotes efferocytosis through M2 macrophage polarization during resolution of inflammation.
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Affiliation(s)
- Xiancai Zhong
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Ha-Na Lee
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Seung Hyeon Kim
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea.,Cancer Research Institute, Seoul National University, Seoul, South Korea
| | - Sin-Aye Park
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Wonki Kim
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Young-Nam Cha
- Department of Pharmacology and Toxicology, College of Medicine, Inha University, Incheon, South Korea; and
| | - Young-Joon Surh
- Tumor Microenvironment Global Core Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, South Korea.,Cancer Research Institute, Seoul National University, Seoul, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science, Seoul National University, Seoul, South Korea
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28
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Qiu H, Li J, Clark LH, Jackson AL, Zhang L, Guo H, Kilgore JE, Gehrig PA, Zhou C, Bae-Jump VL. JQ1 suppresses tumor growth via PTEN/PI3K/AKT pathway in endometrial cancer. Oncotarget 2018; 7:66809-66821. [PMID: 27572308 PMCID: PMC5341839 DOI: 10.18632/oncotarget.11631] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 08/10/2016] [Indexed: 01/16/2023] Open
Abstract
Overexpression of c-Myc is associated with worse outcomes in endometrial cancer, indicating that c-Myc may be a promising target for endometrial cancer therapy. A novel small molecule, JQ1, has been shown to block BRD4 resulting in inhibition of c-Myc expression and tumor growth. Thus, we investigated whether JQ1 can inhibit endometrial cancer growth in cell culture and xenograft models. In PTEN-positive endometrial cancer cells, JQ1 significantly suppressed cell proliferation via induction of G1 phase arrest and apoptosis in a dose-dependent manner, accompanied by a sharp decline in cyclin D1 and CDK4 protein expression. However, PTEN-negative endometrial cancer cells exhibited intrinsic resistance to JQ1, despite significant c-Myc inhibition. Moreover, we found that PTEN and its downstream PI3K/AKT signaling targets were modulated by JQ1, as evidenced by microarray analysis. Silencing of PTEN in PTEN-positive endometrial cancer cells resulted in resistance to JQ1, while upregulation of PTEN in PTEN-negative endometrial cancer cells increased sensitivity to JQ1. In xenografts models of PTEN-positive and PTEN-knock-in endometrial cancer, JQ1 significantly upregulated the expression of PTEN, blocked the PI3K/AKT signaling pathway and suppressed tumor growth. These effects were attenuated in PTEN-negative and PTEN-knockdown xenograft models. Thus, JQ1 resistance appears to be highly associated with the status of PTEN expression in endometrial cancer. Our findings suggest that targeting BRD4 using JQ1 might serve as a novel therapeutic strategy in PTEN-positive endometrial cancers.
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Affiliation(s)
- Haifeng Qiu
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jing Li
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Leslie H Clark
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Amanda L Jackson
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Lu Zhang
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan, China
| | - Hui Guo
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan, China
| | - Joshua E Kilgore
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Paola A Gehrig
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Chunxiao Zhou
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Victoria L Bae-Jump
- Division of Gynecological Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Lineberger Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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29
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Jiang S, Yan W, Wang SE, Baltimore D. Let-7 Suppresses B Cell Activation through Restricting the Availability of Necessary Nutrients. Cell Metab 2018; 27:393-403.e4. [PMID: 29337138 DOI: 10.1016/j.cmet.2017.12.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 07/19/2017] [Accepted: 12/09/2017] [Indexed: 12/18/2022]
Abstract
The control of uptake and utilization of necessary extracellular nutrients-glucose and glutamine-is an important aspect of B cell activation. Let-7 is a family of microRNAs known to be involved in metabolic control. Here, we employed several engineered mouse models, including B cell-specific overexpression of Lin28a or the let-7a-1/let-7d/let-7f-1 cluster (let-7adf) and knockout of individual let-7 clusters to show that let-7adf specifically inhibits T cell-independent (TI) antigen-induced immunoglobulin (Ig)M antibody production. Both overexpression and deletion of let-7 in this cluster leads to altered TI-IgM production. Mechanistically, let-7adf suppresses the acquisition and utilization of key nutrients, including glucose and glutamine, through directly targeting hexokinase 2 (Hk2) and by repressing a glutamine transporter Slc1a5 and a key degradation enzyme, glutaminase (Gls), a mechanism mediated by regulation of c-Myc. Our results suggest a novel role of let-7adf as a "metabolic brake" on B cell antibody production.
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Affiliation(s)
- Shuai Jiang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Wei Yan
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Shizhen Emily Wang
- Department of Pathology, University of California, San Diego, La Jolla, CA 92093, USA.
| | - David Baltimore
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
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30
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Fiorentino FP, Tokgün E, Solé-Sánchez S, Giampaolo S, Tokgün O, Jauset T, Kohno T, Perucho M, Soucek L, Yokota J. Growth suppression by MYC inhibition in small cell lung cancer cells with TP53 and RB1 inactivation. Oncotarget 2018; 7:31014-28. [PMID: 27105536 PMCID: PMC5058735 DOI: 10.18632/oncotarget.8826] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/31/2016] [Indexed: 12/20/2022] Open
Abstract
Small cell lung cancer (SCLC) is the most aggressive type of lung cancer with high mortality. One of the MYC family genes, MYC, MYCL or MYCN, is amplified in ~20% of the SCLCs; therefore, MYC proteins are potential therapeutic targets in SCLC patients. We investigated the therapeutic impact of Omomyc, a MYC dominant negative, in a panel of SCLC cell lines. Strikingly, Omomyc suppressed the growth of all tested cell lines by inducing cell cycle arrest and/or apoptosis. Induction of G1 arrest by Omomyc was found to be dependent on the activation of CDKN1A, in part, through the TP73 pathway. Our results strongly indicate that SCLC cells carrying amplification of MYC, MYCL or MYCN are addicted to MYC function, suggesting that MYC targeting would be an efficient therapeutic option for SCLC patients.
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Affiliation(s)
- Francesco Paolo Fiorentino
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain
| | - Elvan Tokgün
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain
| | - Sònia Solé-Sánchez
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain
| | - Sabrina Giampaolo
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain
| | - Onur Tokgün
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain
| | - Toni Jauset
- Vall d'Hebron Institute of Oncology (VHIO) Hospital Vall d'Hebron, Barcelona, Spain
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
| | - Manuel Perucho
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Laura Soucek
- Vall d'Hebron Institute of Oncology (VHIO) Hospital Vall d'Hebron, Barcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.,Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Jun Yokota
- Genomics and Epigenomics of Cancer Prediction Program, Institute of Predictive and Personalized Medicine of Cancer (IMPPC), Campus Can Ruti, Barcelona, Spain.,Division of Genome Biology, National Cancer Center Research Institute, Tokyo, Japan
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31
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Production of Anti-c-Myc Monoclonal Antibody Inhibiting DNA Binding of c-Myc and Max Dimer by Epitope Peptide–CpG-DNA–Liposome Complex Without Carriers. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9649-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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32
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Di Giacomo S, Sollazzo M, de Biase D, Ragazzi M, Bellosta P, Pession A, Grifoni D. Human Cancer Cells Signal Their Competitive Fitness Through MYC Activity. Sci Rep 2017; 7:12568. [PMID: 28974715 PMCID: PMC5626713 DOI: 10.1038/s41598-017-13002-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 09/13/2017] [Indexed: 02/08/2023] Open
Abstract
MYC-mediated cell competition is a cell-cell interaction mechanism known to play an evolutionary role during development from Drosophila to mammals. Cells expressing low levels of MYC, called losers, are committed to die by nearby cells with high MYC activity, called winners, that overproliferate to compensate for cell loss, so that the fittest cells be selected for organ formation. Given MYC's consolidated role in oncogenesis, cell competition is supposed to be relevant to cancer, but its significance in human malignant contexts is largely uncharacterised. Here we show stereotypical patterns of MYC-mediated cell competition in human cancers: MYC-upregulating cells and apoptotic cells were indeed repeatedly found at the tumour-stroma interface and within the tumour parenchyma. Cell death amount in the stromal compartment and MYC protein level in the tumour were highly correlated regardless of tumour type and stage. Moreover, we show that MYC modulation in heterotypic co-cultures of human cancer cells is sufficient as to subvert their competitive state, regardless of genetic heterogeneity. Altogether, our findings suggest that the innate role of MYC-mediated cell competition in development is conserved in human cancer, with malignant cells using MYC activity to colonise the organ at the expense of less performant neighbours.
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Affiliation(s)
- Simone Di Giacomo
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, Bologna, 40126, Italy.
| | - Manuela Sollazzo
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, Bologna, 40126, Italy
| | - Dario de Biase
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, Bologna, 40126, Italy
| | - Moira Ragazzi
- Pathology Unit, IRCCS Arcispedale Santa Maria Nuova, Via Amendola 2, 42122, Reggio Emilia, Italy
| | - Paola Bellosta
- Center for Integrate Biology (CIBIO), University of Trento, Via Sommarive 9, Povo, (TN), 38123, Italy
| | - Annalisa Pession
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, Bologna, 40126, Italy
| | - Daniela Grifoni
- Department of Pharmacy and Biotechnology, University of Bologna, Via Selmi 3, Bologna, 40126, Italy.
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33
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Broecker-Preuss M, Becher-Boveleth N, Bockisch A, Dührsen U, Müller S. Regulation of glucose uptake in lymphoma cell lines by c-MYC- and PI3K-dependent signaling pathways and impact of glycolytic pathways on cell viability. J Transl Med 2017; 15:158. [PMID: 28724379 PMCID: PMC5517804 DOI: 10.1186/s12967-017-1258-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/04/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Changes in glucose and energy metabolism contribute to the altered phenotype of cancer cells and are the basis for positron emission tomography with 18F-fluoro-2-deoxy-D-glucose (FDG) to visualize tumors in vivo. The molecular background of the enhanced glucose uptake and its regulation in lymphoma cells is not fully clarified and may provide new possibilities to reverse the altered metabolism. Thus in this study we investigated regulation of glucose uptake by different signaling pathways. Furthermore, the effect of the glucose analog 2-deoxy-D-glucose (2-DG) alone and in combination with other inhibitors on cell survival was studied. METHODS An FDG uptake assay was established and uptake of FDG by lymphoma cells was determined after incubation with inhibitors of the c-MYC and the PI3K signalling pathways that are known to be activated in lymphoma cells and able to regulate glucose metabolism. Inhibitors of MAPK signalling pathways whose role in altered metabolism is still unclear were also investigated. Expression of mRNAs of the glucose transporter 1 (GLUT1), hexokinase 2 (HK2), glucose-6-phosphatase (G6Pase) and lactate dehydrogenase A (LDHA) and of the glucose metabolism-regulating micro RNAs (miRNA) miR21, -23a, -133a, -133b, -138-1 and -143 was determined by RT-PCR. Cell viability was analysed by MTT assay. RESULTS Treatment with the c-MYC inhibitor 10058-F4 and inhibitors of the PI3K/mTOR pathway diminished uptake of FDG in all three cell lines, while inhibition of MAPK pathways had no effect on glucose uptake. Expression of glycolysis-related genes and miRNAs were diminished, although to a variable degree in the three cell lines. The c-MYC inhibitor, the PI3K inhibitor LY294002, the mTOR inhibitor Rapamycin and 2-DG all diminished the number of viable cells. Interestingly, in combination with 2-DG, the c-MYC inhibitor, LY294002 and the p38 MAPK inhibitor SB203580 had synergistic effects on cell viability in all three cell lines. CONCLUSIONS c-MYC- and PI3K/mTOR-inhibitors decreased viability of the lymphoma cells and led to decreased glucose uptake, expression of glycolysis-associated genes, and glucose metabolism-regulating miRNAs. Inhibition of HK by 2-DG reduced cell numbers as a single agent and synergistically with inhibitors of other intracellular pathways. Thus, targeted inhibition of the pathways investigated here could be a strategy to suppress the glycolytic phenotype of lymphoma cells and reduce proliferation.
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Affiliation(s)
- Martina Broecker-Preuss
- Department of Nuclear Medicine, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany. .,Department of Clinical Chemistry, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany.
| | - Nina Becher-Boveleth
- Department of Nuclear Medicine, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany.,Department of Hematology, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany.,Institute of Pathology, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - Andreas Bockisch
- Department of Nuclear Medicine, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - Ulrich Dührsen
- Department of Hematology, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - Stefan Müller
- Department of Nuclear Medicine, University Hospital Essen, Hufelandstr. 55, 45122, Essen, Germany
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34
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Frank SB, Berger PL, Ljungman M, Miranti CK. Human prostate luminal cell differentiation requires NOTCH3 induction by p38-MAPK and MYC. J Cell Sci 2017; 130:1952-1964. [PMID: 28446540 DOI: 10.1242/jcs.197152] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 04/17/2017] [Indexed: 12/14/2022] Open
Abstract
Many pathways dysregulated in prostate cancer are also involved in epithelial differentiation. To better understand prostate tumor initiation, we sought to investigate specific genes and mechanisms required for normal basal to luminal cell differentiation. Utilizing human prostate basal epithelial cells and an in vitro differentiation model, we tested the hypothesis that regulation of NOTCH3 by the p38 MAPK family (hereafter p38-MAPK), via MYC, is required for luminal differentiation. Inhibition (SB202190 and BIRB796) or knockdown of p38α (also known as MAPK14) and/or p38δ (also known as MAPK13) prevented proper differentiation. Additionally, treatment with a γ-secretase inhibitor (RO4929097) or knockdown of NOTCH1 and/or NOTCH3 greatly impaired differentiation and caused luminal cell death. Constitutive p38-MAPK activation through MKK6(CA) increased NOTCH3 (but not NOTCH1) mRNA and protein levels, which was diminished upon MYC inhibition (10058-F4 and JQ1) or knockdown. Furthermore, we validated two NOTCH3 enhancer elements through a combination of enhancer (e)RNA detection (BruUV-seq) and luciferase reporter assays. Finally, we found that the NOTCH3 mRNA half-life increased during differentiation or upon acute p38-MAPK activation. These results reveal a new connection between p38-MAPK, MYC and NOTCH signaling, demonstrate two mechanisms of NOTCH3 regulation and provide evidence for NOTCH3 involvement in prostate luminal cell differentiation.
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Affiliation(s)
- Sander B Frank
- Laboratory of Integrin Signaling and Tumorigenesis, Van Andel Research Institute, Grand Rapids, MI 49503, USA.,Genetics Program, Michigan State University, East Lansing, MI 48824, USA.,Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, AZ 85724, USA
| | - Penny L Berger
- Laboratory of Integrin Signaling and Tumorigenesis, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Mats Ljungman
- Translational Oncology Program, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Cindy K Miranti
- Laboratory of Integrin Signaling and Tumorigenesis, Van Andel Research Institute, Grand Rapids, MI 49503, USA .,Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, AZ 85724, USA
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35
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Suppression by T FR cells leads to durable and selective inhibition of B cell effector function. Nat Immunol 2016; 17:1436-1446. [PMID: 27695002 DOI: 10.1038/ni.3578] [Citation(s) in RCA: 154] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 09/07/2016] [Indexed: 12/14/2022]
Abstract
Follicular regulatory T cells (TFR cells) inhibit follicular helper T cell (TFH cell)-mediated antibody production. The mechanisms by which TFR cells exert their key immunoregulatory functions are largely unknown. Here we found that TFR cells induced a distinct suppressive state in TFH cells and B cells, in which effector transcriptional signatures were maintained but key effector molecules and metabolic pathways were suppressed. The suppression of B cell antibody production and metabolism by TFR cells was durable and persisted even in the absence of TFR cells. This durable suppression was due in part to epigenetic changes. The cytokine IL-21 was able to overcome TFR cell-mediated suppression and inhibited TFR cells and stimulated B cells. By determining mechanisms of TFR cell-mediated suppression, we have identified methods for modulating the function of TFR cells and antibody production.
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36
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Compound Library Screening Identified Cardiac Glycoside Digitoxin as an Effective Growth Inhibitor of Gefitinib-Resistant Non-Small Cell Lung Cancer via Downregulation of α-Tubulin and Inhibition of Microtubule Formation. Molecules 2016; 21:374. [PMID: 26999101 PMCID: PMC6274445 DOI: 10.3390/molecules21030374] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/14/2016] [Accepted: 03/15/2016] [Indexed: 12/25/2022] Open
Abstract
Non-small-cell lung cancer (NSCLC) dominates over 85% of all lung cancer cases. Epidermal growth factor receptor (EGFR) activating mutation is a common situation in NSCLC. In the clinic, molecular-targeting with Gefitinib as a tyrosine kinase inhibitor (TKI) for EGFR downstream signaling is initially effective. However, drug resistance frequently happens due to additional mutation on EGFR, such as substitution from threonine to methionine at amino acid position 790 (T790M). In this study, we screened a traditional Chinese medicine (TCM) compound library consisting of 800 single compounds in TKI-resistance NSCLC H1975 cells, which contains substitutions from leucine to arginine at amino acid 858 (L858R) and T790M mutation on EGFR. Attractively, among these compounds there are 24 compounds CC50 of which was less than 2.5 μM were identified. We have further investigated the mechanism of the most effective one, Digitoxin. It showed a significantly cytotoxic effect in H1975 cells by causing G2 phase arrest, also remarkably activated 5' adenosine monophosphate-activated protein kinase (AMPK). Moreover, we first proved that Digitoxin suppressed microtubule formation through decreasing α-tubulin. Therefore, it confirmed that Digitoxin effectively depressed the growth of TKI-resistance NSCLC H1975 cells by inhibiting microtubule polymerization and inducing cell cycle arrest.
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Schrecengost RS, Keller SN, Schiewer MJ, Knudsen KE, Smith CD. Downregulation of Critical Oncogenes by the Selective SK2 Inhibitor ABC294640 Hinders Prostate Cancer Progression. Mol Cancer Res 2015; 13:1591-601. [PMID: 26271487 DOI: 10.1158/1541-7786.mcr-14-0626] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 07/30/2015] [Indexed: 12/12/2022]
Abstract
UNLABELLED The bioactive sphingolipid sphingosine-1-phosphate (S1P) drives several hallmark processes of cancer, making the enzymes that synthesize S1P, that is, sphingosine kinase 1 and 2 (SK1 and SK2), important molecular targets for cancer drug development. ABC294640 is a first-in-class SK2 small-molecule inhibitor that effectively inhibits cancer cell growth in vitro and in vivo. Given that AR and Myc are two of the most widely implicated oncogenes in prostate cancer, and that sphingolipids affect signaling by both proteins, the therapeutic potential for using ABC294640 in the treatment of prostate cancer was evaluated. This study demonstrates that ABC294640 abrogates signaling pathways requisite for prostate cancer growth and proliferation. Key findings validate that ABC294640 treatment of early-stage and advanced prostate cancer models downregulate Myc and AR expression and activity. This corresponds with significant inhibition of growth, proliferation, and cell-cycle progression. Finally, oral administration of ABC294640 was found to dramatically impede xenograft tumor growth. Together, these pre-clinical findings support the hypotheses that SK2 activity is required for prostate cancer function and that ABC294640 represents a new pharmacological agent for treatment of early stage and aggressive prostate cancer. IMPLICATIONS Sphingosine kinase inhibition disrupts multiple oncogenic signaling pathways that are deregulated in prostate cancer.
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Affiliation(s)
| | - Staci N Keller
- Apogee Biotechnology Corporation, Hummelstown, Pennsylvania
| | - Matthew J Schiewer
- Department of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Karen E Knudsen
- Department of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. Department of Urology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. Department of Radiation Oncology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Charles D Smith
- Apogee Biotechnology Corporation, Hummelstown, Pennsylvania.
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Yuan L, Sheng X, Willson AK, Roque DR, Stine JE, Guo H, Jones HM, Zhou C, Bae-Jump VL. Glutamine promotes ovarian cancer cell proliferation through the mTOR/S6 pathway. Endocr Relat Cancer 2015; 22:577-91. [PMID: 26045471 PMCID: PMC4500469 DOI: 10.1530/erc-15-0192] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2015] [Indexed: 12/17/2022]
Abstract
Glutamine is one of the main nutrients used by tumor cells for biosynthesis. Therefore, targeted inhibition of glutamine metabolism may have anti-tumorigenic implications. In the present study, we aimed to evaluate the effects of glutamine on ovarian cancer cell growth. Three ovarian cancer cell lines, HEY, SKOV3, and IGROV-1, were assayed for glutamine dependence by analyzing cytotoxicity, cell cycle progression, apoptosis, cell stress, and glucose/glutamine metabolism. Our results revealed that administration of glutamine increased cell proliferation in all three ovarian cancer cell lines in a dose dependent manner. Depletion of glutamine induced reactive oxygen species and expression of endoplasmic reticulum stress proteins. In addition, glutamine increased the activity of glutaminase (GLS) and glutamate dehydrogenase (GDH) by modulating the mTOR/S6 and MAPK pathways. Inhibition of mTOR activity by rapamycin or blocking S6 expression by siRNA inhibited GDH and GLS activity, leading to a decrease in glutamine-induced cell proliferation. These studies suggest that targeting glutamine metabolism may be a promising therapeutic strategy in the treatment of ovarian cancer.
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Affiliation(s)
- Lingqin Yuan
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Xiugui Sheng
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Adam K Willson
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Dario R Roque
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jessica E Stine
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Hui Guo
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Hannah M Jones
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Chunxiao Zhou
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Victoria L Bae-Jump
- Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA Department of Gynecologic OncologyShanDong Tumor Hospital and Cancer Institute, Jinan University, Jinan 250117, People's Republic of ChinaDivision of Gynecologic OncologyUniversity of North Carolina at Chapel Hill, CB #7572, Physicians Office Building Rm #B105, Chapel Hill, North Carolina 27599, USALineberger Comprehensive Cancer CenterUniversity of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Inhibition of c-Myc by 10058-F4 induces growth arrest and chemosensitivity in pancreatic ductal adenocarcinoma. Biomed Pharmacother 2015. [DOI: 10.1016/j.biopha.2015.05.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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