1
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Feng Y, Wang Y, Li X, Sun Z, Qiang S, Wang H, Liu Y. Novel 9-Methylanthracene Derivatives as p53 Activators for the Treatment of Glioblastoma Multiforme. Molecules 2024; 29:2396. [PMID: 38792257 PMCID: PMC11123991 DOI: 10.3390/molecules29102396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/28/2024] [Accepted: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Glioblastoma multiforme, a highly aggressive and lethal brain tumor, is a substantial clinical challenge and a focus of increasing concern globally. Hematological toxicity and drug resistance of first-line drugs underscore the necessity for new anti-glioma drug development. Here, 43 anthracenyl skeleton compounds as p53 activator XI-011 analogs were designed, synthesized, and evaluated for their cytotoxic effects. Five compounds (13d, 13e, 14a, 14b, and 14n) exhibited good anti-glioma activity against U87 cells, with IC50 values lower than 2 μM. Notably, 13e showed the best anti-glioma activity, with an IC50 value up to 0.53 μM, providing a promising lead compound for new anti-glioma drug development. Mechanistic analyses showed that 13e suppressed the MDM4 protein expression, upregulated the p53 protein level, and induced cell cycle arrest at G2/M phase and apoptosis based on Western blot and flow cytometry assays.
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Affiliation(s)
- Yuxin Feng
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, China; (Y.F.); (Y.W.)
| | - Yingjie Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, China; (Y.F.); (Y.W.)
| | - Xiaoxue Li
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.L.); (Z.S.); (S.Q.)
| | - Ziqiang Sun
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.L.); (Z.S.); (S.Q.)
| | - Sihan Qiang
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.L.); (Z.S.); (S.Q.)
| | - Hongbo Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, China; (Y.F.); (Y.W.)
| | - Yi Liu
- School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.L.); (Z.S.); (S.Q.)
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2
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Abdel-Megeed RM, Abdel-Hamid AHZ, Kadry MO. Titanium dioxide nanostructure-loaded Adriamycin surmounts resistance in breast cancer therapy: ABCA/P53/C-myc crosstalk. Future Sci OA 2024; 10:FSO979. [PMID: 38827789 PMCID: PMC11140649 DOI: 10.2144/fsoa-2023-0107] [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] [Indexed: 06/05/2024] Open
Abstract
Aim: To clarify the alternation of gene expression responsible for resistance of Adriamycin (ADR) in rats, in addition to investigation of a novel promising drug-delivery system using titanium dioxide nanoparticles loaded with ADR (TiO2-ADR). Method: Breast cancer was induced in female Sprague-Dawley rats, followed by treatment with ADR (5 mg/kg) or TiO2-ADR (2 mg/kg) for 1 month. Results: Significant improvements in both zinc and calcium levels were observed with TiO2-ADR treatment. Gene expression of ATP-binding cassette transporter membrane proteins (ABCA1 & ABCG1), P53 and Jak-2 showed a significant reduction and overexpression of the C-myc in breast cancer-induced rats. TiO2-ADR demonstrated a notable ability to upregulate these genes. Conclusion: TiO2-ADR could be a promising drug-delivery system for breast cancer therapy.
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Affiliation(s)
- Rehab M Abdel-Megeed
- Therapeutic Chemistry Department, Pharmaceutical & Drug Industries Research Institute, National Research Center, El Buhouth St., Dokki, Cairo, 12622, Egypt
| | - Abdel-Hamid Z Abdel-Hamid
- Therapeutic Chemistry Department, Pharmaceutical & Drug Industries Research Institute, National Research Center, El Buhouth St., Dokki, Cairo, 12622, Egypt
| | - Mai O Kadry
- Therapeutic Chemistry Department, Pharmaceutical & Drug Industries Research Institute, National Research Center, El Buhouth St., Dokki, Cairo, 12622, Egypt
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3
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Lin W, Yan Y, Huang Q, Zheng D. MDMX in Cancer: A Partner of p53 and a p53-Independent Effector. Biologics 2024; 18:61-78. [PMID: 38318098 PMCID: PMC10839028 DOI: 10.2147/btt.s436629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/08/2023] [Indexed: 02/07/2024]
Abstract
The p53 tumor suppressor protein plays an important role in physiological and pathological processes. MDM2 and its homolog MDMX are the most important negative regulators of p53. Many studies have shown that MDMX promotes the growth of cancer cells by influencing the regulation of the downstream target gene of tumor suppressor p53. Studies have found that inhibiting the MDMX-p53 interaction can effectively restore the tumor suppressor activity of p53. MDMX has growth-promoting activities without p53 or in the presence of mutant p53. Therefore, it is extremely important to study the function of MDMX in tumorigenesis, progression and prognosis. This article mainly reviews the current research progress and mechanism on MDMX function, summarizes known MDMX inhibitors and provides new ideas for the development of more specific and effective MDMX inhibitors for cancer treatment.
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Affiliation(s)
- Wu Lin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Yuxiang Yan
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Qingling Huang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, People’s Republic of China
| | - Dali Zheng
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, People’s Republic of China
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4
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Mei Q, Yang Z, Xiang Z, Zuo H, Zhou Z, Dong X, Zhang L, Song W, Wang Y, Hu Q, Zhou Y, Qu J. Pharmacological inhibition of MDM4 alleviates pulmonary fibrosis. Theranostics 2023; 13:2787-2799. [PMID: 37284444 PMCID: PMC10240813 DOI: 10.7150/thno.81993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/26/2023] [Indexed: 06/08/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal lung disease of unknown etiology with no cure. A better understanding of the disease processes and identification of druggable targets will benefit the development of effective therapies for IPF. We previously reported that MDM4 promoted lung fibrosis through the MDM4-p53-dependent pathway. However, it remained unclear whether targeting this pathway would have any therapeutic potential. In this study, we evaluated the efficacy of XI-011, a small molecular inhibitor of MDM4, for treating lung fibrosis. We found that XI-011 significantly reduced MDM4 expression and increased the expression of total and acetylated p53 in primary human myofibroblasts and a murine fibrotic model. XI-011 treatment resulted in the resolution of lung fibrosis in mice with no notable impact on normal fibroblast death or the morphology of healthy lungs. Based on these findings, we propose that XI-011 might be a promising therapeutic drug candidate for treating pulmonary fibrosis.
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Affiliation(s)
- Qianru Mei
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhenhua Yang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhengkai Xiang
- Department of Thoracic Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430079, China
| | - He Zuo
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zijing Zhou
- Department of Pulmonary and Critical Care Medicine, Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Xiaochuan Dong
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ludan Zhang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wenhui Song
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yi Wang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qinghua Hu
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yong Zhou
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, the University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jing Qu
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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5
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Hu L, Liu S, Yao H, Hu Y, Wang Y, Jiang J, Li X, Fu F, Yin Q, Wang H. Identification of a novel heterogeneous nuclear ribonucleoprotein A2B1 (hnRNPA2B1) ligand that disrupts HnRNPA2B1/nucleic acid interactions to inhibit the MDMX-p53 axis in gastric cancer. Pharmacol Res 2023; 189:106696. [PMID: 36791898 DOI: 10.1016/j.phrs.2023.106696] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/01/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Gastric carcinoma is a highly malignant tumor that still lacks effective molecular targets. Heterogeneous nuclear ribonucleoprotein A2B1 (hnRNPA2B1) is an essential oncogenic driver overexpressed in various cancers. The potential role of hnRNPA2B1 in oncotherapy has not been revealed because of the absence of active chemical molecules. In this study, we identified the pseudourea derivative XI-011 as a novel hnRNPA2B1 ligand using chemical proteomics. An interaction study indicated that XI-011 could bind the nucleotide-binding domain to disrupt the recruitment of hnRNPA2B1 to the promoter and untranslated region of the murine double minute X (MDMX) gene, thereby inhibiting its transcription. In addition, chemical targeting of hnRNPA2B1 recovered inactivated p53 and enhanced the therapeutic efficacy of apatinib in vivo. This work presented a novel strategy to restore p53 activity for the treatment of gastric cancers via chemically targeting hnRNPA2B1.
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Affiliation(s)
- Lei Hu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Shuqi Liu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Hongying Yao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yuemiao Hu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China; Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
| | - Yingjie Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Jingpeng Jiang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Xiaopeng Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Fenghua Fu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Qikun Yin
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
| | - Hongbo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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6
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Design, Synthesis and Structure-Activity Relationship Studies of Meridianin Derivatives as Novel JAK/STAT3 Signaling Inhibitors. Int J Mol Sci 2022; 23:ijms23042199. [PMID: 35216314 PMCID: PMC8875316 DOI: 10.3390/ijms23042199] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 12/03/2022] Open
Abstract
Hyperactivation of Janus kinase (JAK)/signal transducer and activator of transcription 3 (STAT3) signaling is an attractive therapeutic target for tumor therapy. Herein, forty-eight novel meridianin derivatives were designed and synthesized, and their antitumor activity was evaluated in vitro both for activity optimization and structure–activity relationship (SAR) study. The results indicated that most derivatives exhibited significantly improved antitumor activity, especially for compound 6e. The compound 6e contains an isothiouronium linked by an alkyl chain consisting of six carbon atoms with IC50 ranging from 1.11 to 2.80 μM on various cancer cell lines. Consistently, the 6e dose dependently induced the apoptosis of A549 and DU145 cells, in which STAT3 is constitutively active. Western blotting assays indicated that the phosphorylation levels of JAK1, JAK2 and STAT3 were inhibited by 6e at 5 μM without significant change in the total STAT3 level. Moreover, 6e also suppressed the expression of STAT3 downstream genes, including c-Myc, Cyclin D1 and Bcl-XL at 10 μM. An additional in vivo study revealed that 6e at the dose of 10 mg/kg could potently inhibit the DU145 xenograft tumor without obvious body weight loss. These results clearly indicate that 6e could be a potential antitumor agent by targeting the JAK/STAT3 signaling pathway.
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7
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Zhang J, Yu G, Yang Y, Wang Y, Guo M, Yin Q, Yan C, Tian J, Fu F, Wang H. A small-molecule inhibitor of MDMX suppresses cervical cancer cells via the inhibition of E6-E6AP-p53 axis. Pharmacol Res 2022; 177:106128. [PMID: 35150860 DOI: 10.1016/j.phrs.2022.106128] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/24/2022] [Accepted: 02/08/2022] [Indexed: 02/07/2023]
Abstract
Dysfunction of p53 is observed in many malignant tumors, which is related to cancer susceptibility. In cervical cancer, p53 is primarily degradated through the complex of high-risk human papillomaviruses (HPV) oncoprotein E6 and E6-associated protein (E6AP) ubiquitin ligase. What is less clear is the mechanism and role of murine double minute X (MDMX) in cervical carcinogenesis due to the inactive status of murine double minute 2 (MDM2). In the current study, XI-011 (NSC146109), a small-molecule inhibitor of MDMX, showed robust anti-proliferation activity against several cervical cancer cell lines. XI-011 promoted apoptosis of cervical cancer cells via stabilizing p53 and activating its transcription activity. Moreover, XI-011 inhibited the growth of xenograft tumor in HeLa tumor-bearing mice, as well as enhanced the cytotoxic activity of cisplatin both in vitro and in vivo. Interestingly, MDMX co-locolized with E6AP and seems to be a novel binding partner of E6AP to promote p53 ubiquitination. In conclusion, this work revealed a novel mechanism of ubiquitin-dependent p53 degredation via MDMX-E6AP axis in cervical carcinogenesis, and offered the first evidence that MDMX could be a viable drug target for the treatment of cervical cancer.
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Affiliation(s)
- Jingwen Zhang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Guohua Yu
- Department of Pathology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - Yanting Yang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Yingjie Wang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Mengqi Guo
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Qikun Yin
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China; Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, China
| | - Chunhong Yan
- GRU Cancer Center, Georgia Regents University, Augusta, GA, USA
| | - Jingwei Tian
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China
| | - Fenghua Fu
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China.
| | - Hongbo Wang
- Key laboratory of Molecular Pharmacology and Drug Evalution (Yantai University), Ministry of Education; Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai university, Yantai, China.
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8
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Kung CP, Weber JD. It’s Getting Complicated—A Fresh Look at p53-MDM2-ARF Triangle in Tumorigenesis and Cancer Therapy. Front Cell Dev Biol 2022; 10:818744. [PMID: 35155432 PMCID: PMC8833255 DOI: 10.3389/fcell.2022.818744] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/07/2022] [Indexed: 01/31/2023] Open
Abstract
Anti-tumorigenic mechanisms mediated by the tumor suppressor p53, upon oncogenic stresses, are our bodies’ greatest weapons to battle against cancer onset and development. Consequently, factors that possess significant p53-regulating activities have been subjects of serious interest from the cancer research community. Among them, MDM2 and ARF are considered the most influential p53 regulators due to their abilities to inhibit and activate p53 functions, respectively. MDM2 inhibits p53 by promoting ubiquitination and proteasome-mediated degradation of p53, while ARF activates p53 by physically interacting with MDM2 to block its access to p53. This conventional understanding of p53-MDM2-ARF functional triangle have guided the direction of p53 research, as well as the development of p53-based therapeutic strategies for the last 30 years. Our increasing knowledge of this triangle during this time, especially through identification of p53-independent functions of MDM2 and ARF, have uncovered many under-appreciated molecular mechanisms connecting these three proteins. Through recognizing both antagonizing and synergizing relationships among them, our consideration for harnessing these relationships to develop effective cancer therapies needs an update accordingly. In this review, we will re-visit the conventional wisdom regarding p53-MDM2-ARF tumor-regulating mechanisms, highlight impactful studies contributing to the modern look of their relationships, and summarize ongoing efforts to target this pathway for effective cancer treatments. A refreshed appreciation of p53-MDM2-ARF network can bring innovative approaches to develop new generations of genetically-informed and clinically-effective cancer therapies.
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Affiliation(s)
- Che-Pei Kung
- ICCE Institute, St. Louis, MO, United States
- Division of Molecular Oncology, Department of Medicine, St. Louis, MO, United States
- *Correspondence: Che-Pei Kung, ; Jason D. Weber,
| | - Jason D. Weber
- ICCE Institute, St. Louis, MO, United States
- Division of Molecular Oncology, Department of Medicine, St. Louis, MO, United States
- Alvin J. Siteman Cancer Center, Washington University School of Medicine, St. Louis, MO, United States
- *Correspondence: Che-Pei Kung, ; Jason D. Weber,
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Klein AM, de Queiroz RM, Venkatesh D, Prives C. The roles and regulation of MDM2 and MDMX: it is not just about p53. Genes Dev 2021; 35:575-601. [PMID: 33888565 PMCID: PMC8091979 DOI: 10.1101/gad.347872.120] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, Klein et al. discuss the p53-independent roles of MDM2 and MDMX. First, they review the structural and functional features of MDM2 and MDMX proteins separately and together that could be relevant to their p53-independent activities. Following this, they summarize how these two proteins are regulated and how they can function in cells that lack p53. Most well studied as proteins that restrain the p53 tumor suppressor protein, MDM2 and MDMX have rich lives outside of their relationship to p53. There is much to learn about how these two proteins are regulated and how they can function in cells that lack p53. Regulation of MDM2 and MDMX, which takes place at the level of transcription, post-transcription, and protein modification, can be very intricate and is context-dependent. Equally complex are the myriad roles that these two proteins play in cells that lack wild-type p53; while many of these independent outcomes are consistent with oncogenic transformation, in some settings their functions could also be tumor suppressive. Since numerous small molecules that affect MDM2 and MDMX have been developed for therapeutic outcomes, most if not all designed to prevent their restraint of p53, it will be essential to understand how these diverse molecules might affect the p53-independent activities of MDM2 and MDMX.
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Affiliation(s)
- Alyssa M Klein
- Integrated Program in Cellular, Molecular, and Biomedical Studies, Columbia University, New York, New York 10032, USA
| | | | - Divya Venkatesh
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Carol Prives
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
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Pellegrino R, Thavamani A, Calvisi DF, Budczies J, Neumann A, Geffers R, Kroemer J, Greule D, Schirmacher P, Nordheim A, Longerich T. Serum Response Factor (SRF) Drives the Transcriptional Upregulation of the MDM4 Oncogene in HCC. Cancers (Basel) 2021; 13:E199. [PMID: 33429878 PMCID: PMC7829828 DOI: 10.3390/cancers13020199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/30/2020] [Accepted: 01/04/2021] [Indexed: 01/10/2023] Open
Abstract
Different molecular mechanisms support the overexpression of the mouse double minute homolog 4 (MDM4), a functional p53 inhibitor, in human hepatocellular carcinoma (HCC). However, the transcription factors (TFs) leading to its transcriptional upregulation remain unknown. Following promoter and gene expression analyses, putative TFs were investigated using gene-specific siRNAs, cDNAs, luciferase reporter assays, chromatin immunoprecipitation, and XI-011 drug treatment in vitro. Additionally, MDM4 expression was investigated in SRF-VP16iHep transgenic mice. We observed a copy-number-independent upregulation of MDM4 in human HCCs. Serum response factor (SRF), ELK1 and ELK4 were identified as TFs activating MDM4 transcription. While SRF was constitutively detected in TF complexes at the MDM4 promoter, presence of ELK1 and ELK4 was cell-type dependent. Furthermore, MDM4 was upregulated in SRF-VP16-driven murine liver tumors. The pharmacological inhibitor XI-011 exhibited anti-MDM4 activity by downregulating the TFs driving MDM4 transcription, which decreased HCC cell viability and increased apoptosis. In conclusion, SRF drives transcriptional MDM4 upregulation in HCC, acting in concert with either ELK1 or ELK4. The transcriptional regulation of MDM4 may be a promising target for precision oncology of human HCC, as XI-011 treatment exerts anti-MDM4 activity independent from the MDM4 copy number and the p53 status.
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Affiliation(s)
- Rossella Pellegrino
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Abhishek Thavamani
- Department for Molecular Biology, Interfaculty Institute of Cell Biology, University of Tuebingen, 72074 Tuebingen, Germany; (A.T.); (A.N.)
| | - Diego F. Calvisi
- Institute of Pathology, University Hospital Regensburg, 93053 Regensburg, Germany;
| | - Jan Budczies
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Ariane Neumann
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Robert Geffers
- Genome Analytics, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
| | - Jasmin Kroemer
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Damaris Greule
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Peter Schirmacher
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
| | - Alfred Nordheim
- Department for Molecular Biology, Interfaculty Institute of Cell Biology, University of Tuebingen, 72074 Tuebingen, Germany; (A.T.); (A.N.)
| | - Thomas Longerich
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany; (J.B.); (A.N.); (J.K.); (D.G.); (P.S.); (T.L.)
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11
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Yu DH, Xu ZY, Mo S, Yuan L, Cheng XD, Qin JJ. Targeting MDMX for Cancer Therapy: Rationale, Strategies, and Challenges. Front Oncol 2020; 10:1389. [PMID: 32850448 PMCID: PMC7419686 DOI: 10.3389/fonc.2020.01389] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/01/2020] [Indexed: 12/11/2022] Open
Abstract
The oncogene MDMX, also known as MDM4 is a critical negative regulator of the tumor suppressor p53 and has been implicated in the initiation and progression of human cancers. Increasing evidence indicates that MDMX is often amplified and highly expressed in human cancers, promotes cancer cell growth, and inhibits apoptosis by dampening p53-mediated transcription of its target genes. Inhibiting MDMX-p53 interaction has been found to be effective for restoring the tumor suppressor activity of p53. Therefore, MDMX is becoming one of the most promising molecular targets for developing anticancer therapeutics. In the present review, we mainly focus on the current MDMX-targeting strategies and known MDMX inhibitors, as well as their mechanisms of action and in vitro and in vivo anticancer activities. We also propose other potential targeting strategies for developing more specific and effective MDMX inhibitors for cancer therapy.
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Affiliation(s)
- De-Hua Yu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhi-Yuan Xu
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Shaowei Mo
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Li Yuan
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiang-Dong Cheng
- Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jiang-Jiang Qin
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China.,Institute of Cancer and Basic Medicine, Chinese Academy of Sciences, Cancer Hospital of the University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
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12
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Venkatesh D, O'Brien NA, Zandkarimi F, Tong DR, Stokes ME, Dunn DE, Kengmana ES, Aron AT, Klein AM, Csuka JM, Moon SH, Conrad M, Chang CJ, Lo DC, D'Alessandro A, Prives C, Stockwell BR. MDM2 and MDMX promote ferroptosis by PPARα-mediated lipid remodeling. Genes Dev 2020; 34:526-543. [PMID: 32079652 PMCID: PMC7111265 DOI: 10.1101/gad.334219.119] [Citation(s) in RCA: 149] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/21/2020] [Indexed: 12/21/2022]
Abstract
Here, Venkatesh et al. investigated the p53-independent roles of MDMX and the MDM2–MDMX complex. They found that MDM2 and MDMX facilitate ferroptosis in cells with or without p53, and that PPARα activity is essential for MDM2 and MDMX to promote ferroptosis, suggesting that the MDM2–MDMX complex regulates lipids through altering PPARα activity. MDM2 and MDMX, negative regulators of the tumor suppressor p53, can work separately and as a heteromeric complex to restrain p53's functions. MDM2 also has pro-oncogenic roles in cells, tissues, and animals that are independent of p53. There is less information available about p53-independent roles of MDMX or the MDM2–MDMX complex. We found that MDM2 and MDMX facilitate ferroptosis in cells with or without p53. Using small molecules, RNA interference reagents, and mutant forms of MDMX, we found that MDM2 and MDMX, likely working in part as a complex, normally facilitate ferroptotic death. We observed that MDM2 and MDMX alter the lipid profile of cells to favor ferroptosis. Inhibition of MDM2 or MDMX leads to increased levels of FSP1 protein and a consequent increase in the levels of coenzyme Q10, an endogenous lipophilic antioxidant. This suggests that MDM2 and MDMX normally prevent cells from mounting an adequate defense against lipid peroxidation and thereby promote ferroptosis. Moreover, we found that PPARα activity is essential for MDM2 and MDMX to promote ferroptosis, suggesting that the MDM2–MDMX complex regulates lipids through altering PPARα activity. These findings reveal the complexity of cellular responses to MDM2 and MDMX and suggest that MDM2–MDMX inhibition might be useful for preventing degenerative diseases involving ferroptosis. Furthermore, they suggest that MDM2/MDMX amplification may predict sensitivity of some cancers to ferroptosis inducers.
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Affiliation(s)
- Divya Venkatesh
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Nicholas A O'Brien
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Fereshteh Zandkarimi
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - David R Tong
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Michael E Stokes
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Denise E Dunn
- Center for Drug Discovery, Department of Neurobiology, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Everett S Kengmana
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Allegra T Aron
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, USA
| | - Alyssa M Klein
- Integrated Program in Cellular, Molecular, and Biomedical Studies, Columbia University, New York, New York 10032, USA
| | - Joleen M Csuka
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Sung-Hwan Moon
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Marcus Conrad
- Helmholtz Zentrum München, Institute of Metabolism and Cell Death, Neuherberg 85764, Germany
| | - Christopher J Chang
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, USA.,Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, California 94720, USA
| | - Donald C Lo
- Center for Drug Discovery, Department of Neurobiology, Duke University Medical Center, Durham, North Carolina 27710, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, Colorado 80045, USA
| | - Carol Prives
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA
| | - Brent R Stockwell
- Department of Biological Sciences, Columbia University, New York, New York 10027, USA.,Department of Chemistry, Columbia University, New York, New York 10027, USA
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13
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Huang Y, Liu N, Liu J, Liu Y, Zhang C, Long S, Luo G, Zhang L, Zhang Y. Mutant p53 drives cancer chemotherapy resistance due to loss of function on activating transcription of PUMA. Cell Cycle 2019; 18:3442-3455. [PMID: 31726940 DOI: 10.1080/15384101.2019.1688951] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
P53 is a critical tumor suppressor gene, activating p53 and its downstream targets to induce apoptosis is a promising way for cancer therapy. However, more than 50% of cancer patients have p53 mutations, which may cause cancer therapy resistance, and the underline mechanism is poorly understood. Here, we found that cell viability decrease and apoptosis induced by p53-dependent traditional drugs in colon cancer cells were eliminated in p53 mutant cells. Mutant p53 did not up-regulate the expression of its direct downstream targets PUMA and p21, due to the inhibition of PUMA transcription. Furthermore, mutant p53 could not bind to the promoter of PUMA to activate its transcription like WT p53 did, while overexpressed WT p53 rescued PUMA-induced subsequent apoptosis. In conclusion, our findings demonstrate mutant p53 may cause chemo-resistance of tumor because of inactivating PUMA transcription, which prompts some new insights for clinical therapy of cancer patients with mutant p53.Abbreviations: CRC: Colorectal cancer; CDKs: Cyclin-dependent kinases; PUMA: p53 up-regulated modulator of apoptosis; PDGF: the platelet-derived growth factor; WT p53: wild-type p53 protein; mutp53: mutant p53 proteins; BAX: Bcl-2-associated X protein; NOXA: Phorbol-12-myristate-13-acetate-induced protein 1.
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Affiliation(s)
- Yuan Huang
- College of Biology, Hunan University, Changsha, China
| | - Nannan Liu
- College of Biology, Hunan University, Changsha, China
| | - Jing Liu
- College of Biology, Hunan University, Changsha, China
| | - Yeying Liu
- College of Biology, Hunan University, Changsha, China
| | - Chuchu Zhang
- College of Biology, Hunan University, Changsha, China
| | - Shuaiyu Long
- College of Biology, Hunan University, Changsha, China
| | - Guang Luo
- College of Biology, Hunan University, Changsha, China
| | - Lingling Zhang
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yingjie Zhang
- College of Biology, Hunan University, Changsha, China.,Shenzhen Institute, Hunan University, Shenzhen, China
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14
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Ye DJ, Kwon YJ, Baek HS, Cho E, Kwon TU, Chun YJ. Combination treatment with auranofin and nutlin-3a induces synergistic cytotoxicity in breast cancer cells. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2019; 82:626-637. [PMID: 31258040 DOI: 10.1080/15287394.2019.1635934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Auranofin is a gold complex categorized as an anti-rheumatic agent. Recently, several investigators suggested that auranofin may act as a potent anti-cancer drug for breast tumors. Nutlin-3a is a cis-imidazoline analog which prevents interaction between mouse double minute 2 homolog (MDM2) and the tumor suppressor p53. The aim of this study was to examine cell growth inhibition mediated by auranofin or nutlin-3a individually as well as in combination with MCF-7 and MDA-MB-231 cells. To assess any potential synergistic effects between auranofin and nutlin-3a, low concentrations of auranofin and nutlin-3a were simultaneously incubated with MCF-7 and MDA-MB-231 cells. Cell viability assay, caspase-3/7 assay, and poly (ADP-ribose) polymerase cleavage revealed that auranofin and nutlin-3a exerted a synergistic effect on cancer cell apoptosis. Isobologram analysis of MCF-7 and MDA-MB-231 cells noted evident synergism between auranofin and nutlin-3a. The combined treatment increased the expression of mitochondrial pro-apoptotic factors such as Bcl-2 associated X protein and Bcl-2 homologous antagonist/killer. Further, combination treatment significantly enhanced reactive oxygen species (ROS) generation in MCF-7 and MDA-MB-231 cells. In conclusion, data demonstrated that combined treatment with auranofin and nutlin-3a exhibited a synergistic action on breast cancer cells and this combination may be considered for use as a novel therapeutic strategy for breast cancer.
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Affiliation(s)
- Dong-Jin Ye
- a College of Pharmacy, Chung-Ang University , Seoul , Korea
| | - Yeo-Jung Kwon
- a College of Pharmacy, Chung-Ang University , Seoul , Korea
| | | | - Eunah Cho
- a College of Pharmacy, Chung-Ang University , Seoul , Korea
| | - Tae-Uk Kwon
- a College of Pharmacy, Chung-Ang University , Seoul , Korea
| | - Young-Jin Chun
- a College of Pharmacy, Chung-Ang University , Seoul , Korea
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15
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Zhang S, Song Q, Wang X, Wei Z, Yu R, Wang X, Jiang T. Virtual Screening Guided Design, Synthesis and Bioactivity Study of Benzisoselenazolones (BISAs) on Inhibition of c-Met and Its Downstream Signalling Pathways. Int J Mol Sci 2019; 20:E2489. [PMID: 31137515 PMCID: PMC6566228 DOI: 10.3390/ijms20102489] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 12/12/2022] Open
Abstract
c-Met is a transmembrane receptor tyrosine kinase and an important therapeutic target for anticancer drugs. In this study, we designed a small library containing 300 BISAs molecules that consisted of carbohydrates, amino acids, isothiourea, tetramethylthiourea, guanidine and heterocyclic groups and screened c-Met targeting compounds using docking and MM/GBSA. Guided by virtual screening, we synthesised a series of novel compounds and their activity on inhibition of the autophosphorylation of c-Met and its downstream signalling pathway proteins were evaluated. We found a panel of benzisoselenazolones (BISAs) obtained by introducing isothiourea, tetramethylthiourea and heterocyclic groups into the C-ring of Ebselen, including 7a, 7b, 8a, 8b and 12c (with IC50 values of less than 20 μM in MET gene amplified lung cancer cell line EBC-1), exhibited more potent antitumour activity than Ebselen by cell growth assay combined with in vitro biochemical assays. In addition, we also tested the antitumour activity of three cancer cell lines without MET gene amplification/activation, including DLD1, MDA-MB-231 and A549. The neuroblastoma SK-N-SH cells with HGF overexpression which activates MET signalling are sensitive to MET inhibitors. The results reveal that our compounds may be nonspecific multitarget kinase inhibitors, just like type-II small molecule inhibitors. Western blot analysis showed that these inhibitors inhibited autophosphorylation of c-MET, and its downstream signalling pathways, such as PI3K/AKT and MARK/ERK. Results suggest that bensoisoselenones can be used as a scaffold for the design of c-Met inhibiting drug leads, and this study opens up new possibilities for future antitumour drug design.
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Affiliation(s)
- Siqi Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
| | - Qiaoling Song
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
- Center for Innovative Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
| | - Xueting Wang
- Center for High Performance Computing & System simulation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
| | - Zhiqiang Wei
- Center for High Performance Computing & System simulation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
- Center for Innovative Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China.
| | - Xin Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
- Center for Innovative Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
- Center for Innovative Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China.
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16
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Lee CY, Kim HY, Kim S, Park KS, Park HG. A simple and sensitive detection of small molecule-protein interactions based on terminal protection-mediated exponential strand displacement amplification. Analyst 2019; 143:2023-2028. [PMID: 29634063 DOI: 10.1039/c8an00099a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We herein describe a simple and sensitive strategy to detect a small molecule-protein interaction based on terminal protection-mediated exponential strand displacement amplification (eSDA). In principle, the small molecule linked to a DNA probe protects the DNA probe against the exonuclease I-catalyzed degradation after its binding to the corresponding target protein. The protected DNA probe then serves as a template to promote eSDA. Consequently, a large number of duplexes are produced, which leads to a high fluorescence from a double-stranded DNA specific fluorescent dye, SYBR Green I. As a model system to prove this sensing strategy, the interaction between biotin and streptavidin (SA), which is known to be the strongest among the non-covalent biological interactions, was selected and its analytical performance was thoroughly investigated. As a result, SA was sensitively detected with the limit of detection of 16 pM. In addition, the practical applicability of this method was successfully demonstrated by reliably determining the SA in human serum.
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Affiliation(s)
- Chang Yeol Lee
- Department of Chemical and Biomolecular Engineering (BK 21 + program), KAIST, Daehak-ro 291, Yuseong-gu, Daejeon 34141, Republic of Korea.
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17
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Molecular targeted therapy: Treating cancer with specificity. Eur J Pharmacol 2018; 834:188-196. [DOI: 10.1016/j.ejphar.2018.07.034] [Citation(s) in RCA: 547] [Impact Index Per Article: 91.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 06/29/2018] [Accepted: 07/19/2018] [Indexed: 12/12/2022]
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18
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Heijkants RC, Nieveen M, Hart KC', Teunisse AFAS, Jochemsen AG. Targeting MDMX and PKCδ to improve current uveal melanoma therapeutic strategies. Oncogenesis 2018; 7:33. [PMID: 29593251 PMCID: PMC5874255 DOI: 10.1038/s41389-018-0041-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/23/2018] [Accepted: 03/07/2018] [Indexed: 01/10/2023] Open
Abstract
Uveal melanoma (UM) is the most frequent ocular cancer in adults, accounting for ~5% of the total melanoma incidence. Although the primary tumor is well treatable, patients frequently develop metastases for which no curative therapy exists. Highly activated protein kinase C (PKC) is a common feature of UM and has shown potential as therapeutic intervention for UM patients. Unfortunately, PKC inhibition as single treatment appears to have only limited clinical benefit. Combining PKC inhibition with activation of p53, which is rarely mutated in UM, by MDM2 inhibitors has shown promising results in vitro and in vivo. However, clinical studies have shown strong adverse effects of MDM2 inhibition. Therefore, we investigated alternative approaches to achieve similar anticancer effects, but with potentially less adverse effects. We studied the potential of targeting MDMX, an essential p53 inhibitor during embryonal development but less universally expressed in adult tissues compared with MDM2. Therefore, targeting MDMX is predicted to have less adverse effects in patients. Depletion of MDMX, like the pharmacological activation of p53, inhibits the survival of UM cells, which is enhanced in combination with PKC inhibition. Also pan-PKC inhibitors elicit adverse effects in patients. As the PKC family consists of 10 different isoforms, it could be hypothesized that targeting a single PKC isoform would have less adverse effects compared with a pan-PKC inhibitor. Here we show that specifically depleting PKCδ inhibits UM cell growth, which can be further enhanced by p53 reactivation. In conclusion, our data show that the synergistic effects of p53 activation by MDM2 inhibition and broad spectrum PKC inhibition on survival of UM cells can also largely be achieved by the presumably less toxic combination of depletion of MDMX and targeting a specific PKC isoform, PKCδ.
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Affiliation(s)
- R C Heijkants
- Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - M Nieveen
- Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - K C 't Hart
- Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - A F A S Teunisse
- Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands
| | - A G Jochemsen
- Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands.
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19
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Yee-Lin V, Pooi-Fong W, Soo-Beng AK. Nutlin-3, A p53-Mdm2 Antagonist for Nasopharyngeal Carcinoma Treatment. Mini Rev Med Chem 2018; 18:173-183. [PMID: 28714398 PMCID: PMC5769085 DOI: 10.2174/1389557517666170717125821] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 04/07/2017] [Accepted: 04/16/2017] [Indexed: 01/08/2023]
Abstract
Nasopharyngeal carcinoma (NPC) is a form of head and neck cancer of multifactorial etiolo-gies that is highly prevalent among men in the population of Southern China and Southeast Asia. NPC has claimed many thousands of lives worldwide; but the low awareness of NPC remains a hindrance in early diagnosis and prevention of the disease. NPC is highly responsive to radiotherapy and chemothera-py, but radiocurable NPC is still dependent on concurrent treatment of megavoltage radiotherapy with chemotherapy. Despite a significant reduction in loco-regional and distant metastases, radiotherapy alone has failed to provide a significant improvement in the overall survival rate of NPC, compared to chemo-therapy. In addition, chemo-resistance persists as the major challenge in the management of metastatic NPC although the survival rate of advanced metastatic NPC has significantly improved with the admin-istration of chemotherapy adjunctive to radiotherapy. In this regard, targeted molecular therapy could be explored for the discovery of alternative NPC therapies. Nutlin-3, a small molecule inhibitor that specifi-cally targets p53-Mdm2 interaction offers new therapeutic opportunities by enhancing cancer cell growth arrest and apoptosis through the restoration of the p53-mediated tumor suppression pathway while pro-ducing minimal cytotoxicity and side effects. This review discusses the potential use of Nutlin-3 as a p53-activating drug and the future directions of its clinical research for NPC treatment.
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Affiliation(s)
- Voon Yee-Lin
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur. Malaysia
| | - Wong Pooi-Fong
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur. Malaysia
| | - Alan Khoo Soo-Beng
- Molecular Pathology Unit, Cancer Research Centre, Institute for Medical Research, 50588 Kuala Lumpur. Malaysia
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20
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Jiang ZQ, Li MH, Qin YM, Jiang HY, Zhang X, Wu MH. Luteolin Inhibits Tumorigenesis and Induces Apoptosis of Non-Small Cell Lung Cancer Cells via Regulation of MicroRNA-34a-5p. Int J Mol Sci 2018; 19:ijms19020447. [PMID: 29393891 PMCID: PMC5855669 DOI: 10.3390/ijms19020447] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 01/20/2018] [Accepted: 01/29/2018] [Indexed: 02/07/2023] Open
Abstract
Luteolin (LTL) exerts remarkable tumor suppressive activity on various types of cancers, including non-small cell lung cancer (NSCLC). However, it is not completely understood whether the mechanism of its action against NSCLC is related to microRNAs (miRNAs). In the present study, we investigated the anti-tumor effects of LTL on NSCLC in vitro and in vivo. The results revealed that LTL could inhibit cell proliferation and induce apoptosis in both A549 and H460 cells. In a H460 xenograft tumor model of nude mice, LTL significantly suppressed tumor growth, inhibited cell proliferation, and induced apoptosis. miRNA microarray and quantitative PCR (qPCR) analysis indicated that miR-34a-5p was dramatically upregulated upon LTL treatment in tumor tissues. Furthermore, MDM4 was proved to be a direct target of miR-34a-5p by luciferase reporter gene assay. LTL treatment was associated with increased p53 and p21 protein expressions and decreased MDM4 protein expression in both NSCLC cells and tumor tissues. When miR-34a-5p was inhibited in vitro, the protein expressions of Bcl-2 and MDM4 were recovered, while that of p53, p21, and Bax were attenuated. Moreover, caspase-3 and caspase-9 activation induced by LHL treatment in vitro were also suppressed by miR-34a-5p inhibition. Overall, LTL could inhibit tumorigenesis and induce apoptosis of NSCLC cells by upregulation of miR-34a-5p via targeting MDM4. These findings provide novel insight into the molecular functions of LTL that suggest its potential as a therapeutic agent for human NSCLC.
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Affiliation(s)
- Ze-Qun Jiang
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
| | - Mu-Han Li
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
| | - Yue-Mu Qin
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
| | - Hai-Ying Jiang
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
| | - Xu Zhang
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
| | - Mian-Hua Wu
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine (TCM) Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, China.
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21
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Zhao J, Li C, Ma G, Hao W, Jia H. Colorimetric detection of protein via the terminal protection of small-molecule-linked DNA and unmodified gold nanoparticles. RSC Adv 2018; 8:38758-38764. [PMID: 35558333 PMCID: PMC9090659 DOI: 10.1039/c8ra07314g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 10/31/2018] [Indexed: 11/21/2022] Open
Abstract
A novel colorimetric strategy for protein detection was developed based on unmodified gold nanoparticles (AuNPs) and terminal protection from a target protein.
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Affiliation(s)
- Jianwei Zhao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environment Science
- Hebei University
- Baoding
| | - Cuiping Li
- College of Public Health
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Hebei University
- Baoding
- P. R. China
| | - Guimin Ma
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environment Science
- Hebei University
- Baoding
| | - Wenhui Hao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environment Science
- Hebei University
- Baoding
| | - Hongxia Jia
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education
- Key Laboratory of Analytical Science and Technology of Hebei Province
- College of Chemistry and Environment Science
- Hebei University
- Baoding
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22
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Hameed A, Al-Rashida M, Alharthy RD, Uroos M, Mughal EU, Ali SA, Khan KM. Small molecules as activators in medicinal chemistry (2000-2016). Expert Opin Ther Pat 2017; 27:1089-1110. [PMID: 28673105 DOI: 10.1080/13543776.2017.1349103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
INTRODUCTION From therapeutic point of view, it is often beneficial to enhance the expression of certain enzymes whose low expression is responsible for the observed ailment. Small molecules as activators of several enzymes have great biological potential as anti-microbial and anti-cancer agents, for the treatment of diabetes, obesity, metabolic disorders, and for the treatment of neurological disorders including Alzheimer's disease. This review covers patents describing small molecules as activators, and provides structural leads for the design of even more potent activators. Area covered: This review is focused on small molecules that have been explored as activators of enzymes in the last and current decade (2000-2016). Expert opinion: The ability to modulate activity of enzymes has long been a quest of medicinal chemistry. This has been the impetus behind the development of a plethora of drugs as enzyme inhibitors. However only a few enzyme activators as drugs have made it to the market. Disorders characterized by supressed enzyme activity can be treated by enhancing the activity of a specific enzyme.
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Affiliation(s)
- Abdul Hameed
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
| | - Mariya Al-Rashida
- b Department of Chemistry , Forman Christian College (A Chartered University) , Lahore , Pakistan
| | - Rima D Alharthy
- c Department of Chemistry, Science and Arts College , King Abdulaziz University , Jeddah , Saudi Arabia
| | - Maliha Uroos
- d Institute of Chemistry , University of the Punjab , Lahore , Pakistan
| | | | - Syed Abid Ali
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
| | - Khalid Mohammed Khan
- a H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences , University of Karachi , Karachi , Pakistan
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23
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Zhao H, Xie YZ, Xing R, Sun M, Chi F, Zeng YC. MDMX is a prognostic factor for non-small cell lung cancer and regulates its sensitivity to cisplatin. Cell Oncol (Dordr) 2017; 40:357-365. [PMID: 28567715 DOI: 10.1007/s13402-017-0325-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2017] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Chemoradiotherapy is the standard treatment modality for advanced non-small cell lung cancer (NSCLC). However, drug and radiation resistance remain major factors influencing its clinical outcome. The purpose of this study was to evaluate whether MDMX can affect the chemosensitivity and clinical outcome of NSCLC. METHODS Quantitative real-time PCR (qRT-PCR) was performed to assess MDMX mRNA expression levels in 105 primary NSCLC tissues, its corresponding non-cancerous tissues and two NSCLC-derived cell lines (A549 and SK-MES-1). In addition, immunohistochemistry was carried out to detect MDMX protein expression in the primary NSCLC tissues. The MDMX expression levels were correlated with clinicopathological and survival features. The effects of MDMX expression knockdown on NSCLC cell proliferation and chemosensitivity were evaluated using MTT, flow cytometry and soft agar colony assays. RESULTS We found that the mRNA expression level of MDMX in NSCLC tissues was significantly higher than that in its corresponding non-tumorous tissues. High MDMX expression was found to be related to poor tumor cell differentiation, advanced TNM stages and the occurrence of lymph node metastases. Patients with a high MDMX expression level exhibited a lower overall survival rate than those with a low expression level. Multivariate analysis showed that a high MDMX protein expression level may serve as an independent prognostic factor for NSCLC patients. In addition, we found that MDMX expression knockdown combined with cisplatin treatment in vitro significantly increased apoptosis and decreased soft agar colony formation in NSCLC-derived cells. CONCLUSIONS Our data indicate that MDMX expression may serve as an independent unfavorable prognostic factor for NSCLC patient outcome, which in turn may at least partly be due to the ability of the MDMX protein to regulate the proliferative capacity and chemosensitivity of NSCLC cells.
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Affiliation(s)
- Han Zhao
- Department of Medical Oncology, Shengjing Hospital of China Medical University, 39 Huaxiang Road, Shenyang, 110022, China
| | - Yu-Zhuo Xie
- Department of Medical Oncology, Shengjing Hospital of China Medical University, 39 Huaxiang Road, Shenyang, 110022, China
| | - Rui Xing
- Department of Medical Oncology, Shengjing Hospital of China Medical University, 39 Huaxiang Road, Shenyang, 110022, China
| | - Ming Sun
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, 110004, China
| | - Feng Chi
- Department of Medical Oncology, Shengjing Hospital of China Medical University, 39 Huaxiang Road, Shenyang, 110022, China
| | - Yue-Can Zeng
- Department of Medical Oncology, Shengjing Hospital of China Medical University, 39 Huaxiang Road, Shenyang, 110022, China.
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24
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Lee XA, Verma C, Sim AY. Designing dual inhibitors of Mdm2/MdmX: Unexpected coupling of water with gatekeeper Y100/99. Proteins 2017; 85:1493-1506. [DOI: 10.1002/prot.25310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 03/28/2017] [Accepted: 04/17/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Xiong An Lee
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR); Matrix 138671 Singapore
| | - Chandra Verma
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR); Matrix 138671 Singapore
- Department of Biological Sciences; National University of Singapore; 117543 Singapore
- School of Biological Sciences; Nanyang Technological University; 637551 Singapore
| | - Adelene Y.L Sim
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR); Matrix 138671 Singapore
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25
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Nguyen D, Liao W, Zeng SX, Lu H. Reviving the guardian of the genome: Small molecule activators of p53. Pharmacol Ther 2017; 178:92-108. [PMID: 28351719 DOI: 10.1016/j.pharmthera.2017.03.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/20/2017] [Indexed: 02/07/2023]
Abstract
The tumor suppressor p53 is one of the most important proteins for protection of genomic stability and cancer prevention. Cancers often inactivate it by either mutating its gene or disabling its function. Thus, activating p53 becomes an attractive approach for the development of molecule-based anti-cancer therapy. The past decade and half have witnessed tremendous progress in this area. This essay offers readers with a grand review on this progress with updated information about small molecule activators of p53 either still at bench work or in clinical trials.
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Affiliation(s)
- Daniel Nguyen
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Wenjuan Liao
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Shelya X Zeng
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States
| | - Hua Lu
- Department of Biochemistry and Molecular Biology and Tulane Cancer Center, Tulane University School of Medicine, 1430 Tulane Ave, LA 70012, United States.
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26
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Miranda PJ, Buckley D, Raghu D, Pang JMB, Takano EA, Vijayakumaran R, Teunisse AF, Posner A, Procter T, Herold MJ, Gamell C, Marine JC, Fox SB, Jochemsen A, Haupt S, Haupt Y. MDM4 is a rational target for treating breast cancers with mutant p53. J Pathol 2017; 241:661-670. [PMID: 28097652 DOI: 10.1002/path.4877] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 12/20/2016] [Accepted: 01/08/2017] [Indexed: 12/20/2022]
Abstract
Mutation of the key tumour suppressor p53 defines a transition in the progression towards aggressive and metastatic breast cancer (BC) with the poorest outcome. Specifically, the p53 mutation frequency exceeds 50% in triple-negative BC. Key regulators of mutant p53 that facilitate its oncogenic functions are potential therapeutic targets. We report here that the MDM4 protein is frequently abundant in the context of mutant p53 in basal-like BC samples. Importantly, we show that MDM4 plays a critical role in the proliferation of these BC cells. We demonstrate that conditional knockdown (KD) of MDM4 provokes growth inhibition across a range of BC subtypes with mutant p53, including luminal, Her2+ and triple-negative BCs. In vivo, MDM4 was shown to be crucial for the establishment and progression of tumours. This growth inhibition was mediated, at least in part, by the cell cycle inhibitor p27. Depletion of p27 together with MDM4 KD led to recovery of the proliferative capacity of cells that were growth-inhibited by MDM4 KD alone. Consistently, we identified low levels of p27 expression in basal-like tumours corresponding to high levels of MDM4 and p53. This predicts a signature for a subset of tumours that may be amenable to therapies targeted towards MDM4 and mutant p53. The therapeutic potential of MDM4 as a target in BC with mutant p53 was shown in vitro by use of a small-molecule inhibitor. Overall, our study supports MDM4 as a novel therapeutic target for BC expressing mutant p53. Copyright © 2017 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Panimaya Jeffreena Miranda
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Daniel Buckley
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Dinesh Raghu
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Jia-Min B Pang
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Elena A Takano
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Reshma Vijayakumaran
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Amina Fas Teunisse
- Department of Molecular Cell Biology, University Medical Centre, Leiden, The Netherlands
| | - Atara Posner
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Tahlia Procter
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Marco J Herold
- Molecular Genetics of Cancer, The Walter and Eliza Hall Institute, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Cristina Gamell
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium.,Laboratory for Molecular Cancer Biology, Department of Oncology, KULeuven, Leuven, Belgium
| | - Stephen B Fox
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,Department of Pathology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Aart Jochemsen
- Department of Molecular Cell Biology, University Medical Centre, Leiden, The Netherlands
| | - Sue Haupt
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia
| | - Ygal Haupt
- Tumour Suppression Laboratory, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.,The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria, Australia.,Department of Pathology, The University of Melbourne, Parkville, Victoria, Australia.,Department of Biochemistry and Molecular Biology, Monash University, Clayton, Australia
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27
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Shi H, Mao X, Chen X, Wang Z, Wang K, Zhu X. The analysis of proteins and small molecules based on sterically tunable nucleic acid hyperbranched rolling circle amplification. Biosens Bioelectron 2016; 91:136-142. [PMID: 28006680 DOI: 10.1016/j.bios.2016.12.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 12/15/2022]
Abstract
In this work, we succeeded in establishing a new method for proteins and small molecules analysis based on the small molecule-linked DNA and nucleic acid hyperbranched rolling circle amplification (HRCA). Small molecule linked DNA by chemical modification was used as a flexible tool to study protein-small molecule interactions. The HRCA reaction which would produce signal amplification was regulated by the steric effect depending on whether the target proteins were present. In the implement of the proposed strategy, streptavidin (SA)-biotin and anti-digoxin antibody (anti-Dig)-digoxin were chosen as two model partners. Experimental results showed that the quantitative detection of SA and anti-Dig was realized both with nanomolar detection limits. The small molecules biotin and digoxin were also detected at nanomolar levels in a wide range of 1nM~100µM and 1nM~10µM, respectively. Meanwhile, the results indicated that the method had a favorable specificity in analyzing proteins or small molecules. Thus, it may be expected to quantitatively analyze some protein markers and small molecular drugs in complex biological samples.
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Affiliation(s)
- Hai Shi
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Xiaoxia Mao
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Xiaoxia Chen
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Zihan Wang
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Keming Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
| | - Xiaoli Zhu
- Center for Molecular Recognition and Biosensing, School of Life Sciences, Shanghai University, Shanghai 200444, China.
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28
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Tong S, Zhang M, Wang S, Yin R, Yu R, Wan S, Jiang T, Zhang L. Isothiouronium modification empowers pyrimidine-substituted curcumin analogs potent cytotoxicity and Golgi localization. Eur J Med Chem 2016; 123:849-857. [PMID: 27543879 DOI: 10.1016/j.ejmech.2016.07.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 07/18/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
Abstract
Most of protein post-translational modifications occur in the Golgi and many human diseases are associated with abnormal Golgi function or improper post translational modifications of proteins in the Golgi. In this study, we designed and synthesized 4 × 6 series of novel isothiouronium-modified (E,E)-4,6-bis(styryl)-pyrimidine analogs and found that they localized at the Golgi as visualized by the intrinsic fluorescence of the analogs. The isothiouronium-modified analogs had potent cytotoxicity in both normal (Chinese Hamster Ovary or CHO) and cancer cells. Furthermore, permethylated isothiouronium-modified analogs showed cancer cell-selective cytotoxicity. The molecular mechanisms underlying Golgi localization of isothiouronium-modified compounds were investigated using 7 CHO and 4 human cancer cell lines and the results indicated that the compounds had binding partners in the Golgi. Thus, isothiouronium-modified analogs might be promising anticancer agents, novel Golgi staining reagents, and useful research tools for studying Golgi functions in normal or cancer cells and in Golgi-related human diseases.
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Affiliation(s)
- Sheng Tong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Meng Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Shixi Wang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Ruijuan Yin
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Rilei Yu
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Shengbiao Wan
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China.
| | - Lijuan Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China; Institute of Cerebrovascular Diseases, Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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29
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Ban F, Shi H, Feng C, Mao X, Yin Y, Zhu X. A one-pot strategy for the detection of proteins based on sterically and allosterically tunable hybridization chain reaction. Biosens Bioelectron 2016; 86:219-224. [PMID: 27376192 DOI: 10.1016/j.bios.2016.06.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/21/2016] [Accepted: 06/21/2016] [Indexed: 01/05/2023]
Abstract
In this work, we report a facile one-pot strategy for protein detection based on sterically and allosterically tunable hybridization chain reaction (HCR). In our strategy, DNA hairpins H1 and H2 are dual-labeled with pyrene moieties through a six-carbon-atom spacer at each end; and a single-stranded DNA primer is designed to contain two small molecules near each end. In the absence of target protein, the primer can trigger HCR events between alternating H1 and H2 hairpins to form a nicked double-helix. As a result, the pyrene excimers are formed to emit at approximately 485nm. On the contrary, upon binding of the specific target protein onto the primer through the protein-small molecule interaction, the HCR will be inhibited due to the steric and allosteric effect. The changes of the fluorescent signals of pyrene excimers are in response to the concentration of target protein, so that the detection of protein can be realized. We have demonstrated the feasibility of this strategy by using streptavidin (SA) and folate receptor (FR) as model targets. Results show that both of them can be well detected with a detection limit of 1.07nM and 2.7nM, respectively. The developed method for protein assay is flexible, so we infer that the one-pot strategy holds great potential for the detection of other proteins.
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Affiliation(s)
- Fangfang Ban
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Hai Shi
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, China; State Key Laboratory of Pharmaceutical Biotechnology, Department of Biochemistry, Nanjing University, Nanjing 210093, China
| | - Chang Feng
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Biochemistry, Nanjing University, Nanjing 210093, China
| | - Xiaoxia Mao
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yongmei Yin
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
| | - Xiaoli Zhu
- Laboratory of Biosensing Technology, School of Life Sciences, Shanghai University, Shanghai 200444, China.
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30
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Chemical Variations on the p53 Reactivation Theme. Pharmaceuticals (Basel) 2016; 9:ph9020025. [PMID: 27187415 PMCID: PMC4932543 DOI: 10.3390/ph9020025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 05/06/2016] [Accepted: 05/09/2016] [Indexed: 01/31/2023] Open
Abstract
Among the tumor suppressor genes, p53 is one of the most studied. It is widely regarded as the "guardian of the genome", playing a major role in carcinogenesis. In fact, direct inactivation of the TP53 gene occurs in more than 50% of malignancies, and in tumors that retain wild-type p53 status, its function is usually inactivated by overexpression of negative regulators (e.g., MDM2 and MDMX). Hence, restoring p53 function in cancer cells represents a valuable anticancer approach. In this review, we will present an updated overview of the most relevant small molecules developed to restore p53 function in cancer cells through inhibition of the p53-MDMs interaction, or direct targeting of wild-type p53 or mutated p53. In addition, optimization approaches used for the development of small molecules that have entered clinical trials will be presented.
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31
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p53 expression and relationship with MDM2 amplification in breast carcinomas. Ann Diagn Pathol 2016; 21:29-34. [PMID: 27040927 DOI: 10.1016/j.anndiagpath.2016.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/06/2016] [Indexed: 11/23/2022]
Abstract
Carcinoma of the breast, like other malignancies, is a genetic disease with multiple genetic events leading to the malignant phenotype. p53 mutations are the most common genetic events in human cancer. Inactivation of p53 can be a result of mutation in gene sequence. One of the main structures that regulate p53 stabilization is MDM2. It suppresses p53 transcriptional activation by recognizing transactivation domain of p53. The loss of MDM2 function on p53 regulation results in deprivation of p53 tumor suppressor ability. Single nucleotide polymorphisms (SNP309 T->G exchange) or MDM2 amplification has been proposed to play a role in this issue. In the present study, our aim is to analyze p53 and MDM2 status and investigate their interactions in human sporadic breast carcinoma. The study groups were separated according to their molecular classifications. In each group, histologic type of the tumor, conventional prognostic parameters, p53, and MDM2 interactions were compared statistically. Tumors are divided into 4 subtypes due to estrogen and progesterone receptor status, HER-2, and Ki-67 proliferation index results. According to this classification, 23 cases are in the luminal A, 32 cases are in the luminal B, 15 cases are in the HER-2 positive, and 22 cases are in the triple-negative group, with a total of 92 cases. p53 expression is low in luminal breast carcinomas than HER-2 and triple-negative subtypes. MDM2 amplification frequency was found to be 5.4% in total. MDM2 gene amplification does not have a significant role in breast carcinogenesis, but other possible mechanisms may play a role in its inactivation.
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32
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Roh JL, Park JY, Kim EH. XI-011 enhances cisplatin-induced apoptosis by functional restoration of p53 in head and neck cancer. Apoptosis 2015; 19:1594-602. [PMID: 25113507 DOI: 10.1007/s10495-014-1026-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Head and neck cancer (HNC), one of the most common cancers worldwide, frequently involves mutation of the TP53 gene and dysregulation of the p53 pathway. Overexpression of MDM2 or MDM4 inactivates the tumor-suppressive function of p53. Restoration of p53 function that counteracts these p53 repressors can lead to in vivo tumor regression. Therefore, the present study assessed the ability of the small molecule p53 activator XI-011 (NSC146109) to induce apoptosis in HNC by restoring p53 function. We tested the effects of XI-011 treatment in HNC cell lines, either individually or in combination with cisplatin and assessed growth suppression, cell cycle arrest, and apoptosis. The drug effects on in vivo growth of HNC cells were examined in mice xenograft model. XI-011 exerted the highest growth suppression in tumor cells that overexpress MDM4, in which p53 is degraded. XI-011 treatment downregulated MDM4 mRNA and protein levels, and upregulated expression of proapoptotic genes and promoted apoptosis, in a dose-dependent manner. The apoptotic response was blocked by inhibition of p53 or expression of MDM4, demonstrating that the effects of XI-011 depend on p53 and MDM4. In combination treatments, XI-011 acted synergistically with cisplatin to inhibit growth of HNC cells in vitro and in vivo. MDM4 inhibition and functional restoration of p53 by XI-011 effectively enhanced cisplatin-induced cytotoxicity in HNC cells, an activity that suggests a promising strategy for treating HNC.
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Affiliation(s)
- Jong-Lyel Roh
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 138-736, Republic of Korea,
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Lang L, Ding HF, Chen X, Sun SY, Liu G, Yan C. Internal Ribosome Entry Site-Based Bicistronic In Situ Reporter Assays for Discovery of Transcription-Targeted Lead Compounds. ACTA ACUST UNITED AC 2015; 22:957-64. [PMID: 26144883 DOI: 10.1016/j.chembiol.2015.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 06/04/2015] [Accepted: 06/09/2015] [Indexed: 12/27/2022]
Abstract
Although transgene-based reporter gene assays have been used to discover small molecules targeting expression of cancer-driving genes, the success is limited due to the fact that reporter gene expression regulated by incomplete cis-acting elements and foreign epigenetic environments does not faithfully reproduce chemical responses of endogenous genes. Here, we present an internal ribosome entry site-based strategy for bicistronically co-expressing reporter genes with an endogenous gene in the native gene locus, yielding an in situ reporter assay closely mimicking endogenous gene expression without disintegrating its function. This strategy combines the CRISPR-Cas9-mediated genome-editing tool with the recombinase-mediated cassette-exchange technology, and allows for rapid development of orthogonal assays for excluding false hits generated from primary screens. We validated this strategy by developing a screening platform for identifying compounds targeting oncogenic eIF4E, and demonstrated that the novel reporter assays are powerful in searching for transcription-targeted lead compounds with high confidence.
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Affiliation(s)
- Liwei Lang
- GRU Cancer Center, Georgia Regents University, CN2134, 1410 Laney Walker Boulevard, Augusta, GA 30912, USA; Center for Cell Biology & Cancer Research, Albany Medical College, Albany, NY 12208, USA
| | - Han-Fei Ding
- GRU Cancer Center, Georgia Regents University, CN2134, 1410 Laney Walker Boulevard, Augusta, GA 30912, USA; Department of Pathology, Georgia Regents University, Augusta, GA 30912, USA
| | - Xiaoguang Chen
- Department of Pharmacology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100031, China
| | - Shi-Yong Sun
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute, Atlanta, GA 30322, USA
| | - Gang Liu
- Center for Cell Biology & Cancer Research, Albany Medical College, Albany, NY 12208, USA
| | - Chunhong Yan
- GRU Cancer Center, Georgia Regents University, CN2134, 1410 Laney Walker Boulevard, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Georgia Regents University, Augusta, GA 30912, USA; Center for Cell Biology & Cancer Research, Albany Medical College, Albany, NY 12208, USA.
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Abstract
Loss of function of p53, either through mutations in the gene or through mutations to other members of the pathway that inactivate wild-type p53, remains a critically important aspect of human cancer development. As such, p53 remains the most commonly mutated gene in human cancer. For these reasons, pharmacologic activation of the p53 pathway has been a highly sought after, yet unachieved goal in developmental therapeutics. Recently progress has been made not only in the discovery of small molecules that target wild-type and mutant p53, but also in the initiation and completion of the first in-human clinical trials for several of these drugs. Here, we review the current literature of drugs that target wild-type and mutant p53 with a focus on small-molecule type compounds. We discuss common means of drug discovery and group them according to their common mechanisms of action. Lastly, we review the current status of the various drugs in the development process and identify newer areas of p53 tumor biology that may prove therapeutically useful.
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35
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Cancer subclonal genetic architecture as a key to personalized medicine. Neoplasia 2014; 15:1410-20. [PMID: 24403863 DOI: 10.1593/neo.131972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 12/03/2013] [Accepted: 12/03/2013] [Indexed: 02/08/2023] Open
Abstract
The future of personalized oncological therapy will likely rely on evidence-based medicine to integrate all of the available evidence to delineate the most efficacious treatment option for the patient. To undertake evidence-based medicine through use of targeted therapy regimens, identification of the specific underlying causative mutation(s) driving growth and progression of a patient's tumor is imperative. Although molecular subtyping is important for planning and treatment, intraclonal genetic diversity has been recently highlighted as having significant implications for biopsy-based prognosis. Overall, delineation of the clonal architecture of a patient's cancer and how this will impact on the selection of the most efficacious therapy remain a topic of intense interest.
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Roh JL, Kim EH, Park HB, Park JY. The Hsp90 inhibitor 17-(allylamino)-17-demethoxygeldanamycin increases cisplatin antitumor activity by inducing p53-mediated apoptosis in head and neck cancer. Cell Death Dis 2013; 4:e956. [PMID: 24336076 PMCID: PMC3877559 DOI: 10.1038/cddis.2013.488] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 11/07/2013] [Accepted: 11/07/2013] [Indexed: 12/26/2022]
Abstract
The tumor suppressor p53 is often inactivated in head and neck cancer (HNC) through TP53 mutations or overexpression of mouse double minute 2 or mouse double minute X. Restoration of p53 function by counteracting these p53 repressors is a promising strategy for cancer treatment. The present study assessed the ability of a heat shock protein 90 (Hsp90) inhibitor, 17-(Allylamino)-17-demethoxygeldanamycin (17AAG), to induce apoptosis in HNC by restoring p53 function. The effect of 17AAG, alone or in combination with Nutlin-3a or cisplatin, was assessed in HNC cells using growth and apoptosis, immunoblotting, quantitative reverse transcription-polymerase chain reaction, and preclinical tumor xenograft models. 17AAG activated and stabilized p53 in HNC cells bearing wild-type TP53 by disrupting the p53–MDMX interaction. 17AAG upregulated p21 and proapoptotic gene expression, and promoted apoptosis in a concentration-dependent manner. Growth inhibition by 17AAG was highest in tumor cells with MDMX overexpression. The apoptotic response was blocked by inhibition of p53 expression, demonstrating that the effect of 17AAG depended on p53 and MDMX. 17AAG synergized in vitro with Nutlin-3a and in vitro and in vivo with cisplatin to induce p53-mediated apoptosis. 17AAG effectively induced p53-mediated apoptosis in HNC cells through MDMX inhibition and increased the antitumor activity of cisplatin synergistically, suggesting a promising strategy for treating HNC.
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Affiliation(s)
- J-L Roh
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - E H Kim
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H B Park
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Y Park
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Abaza M, Luqmani YA. The influence of pH and hypoxia on tumor metastasis. Expert Rev Anticancer Ther 2013; 13:1229-42. [PMID: 24099530 DOI: 10.1586/14737140.2013.843455] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Rapid malignant proliferation, prior to effective tumor neoangiogenesis, creates a microenvironment around solid cancers, which is predominantly hypoxic and characterized by a high interstitial fluid pressure. Presumably as an adaptive response, tumor cells favor metabolic activity with apparently inefficient energy output, and production of intermediates that promote cellular replication, preferentially through anaerobic glycolysis, a phenomenon that persists even in re-established normoxic conditions (anomalously referred to as 'aerobic glycolysis'). Extrusion of the consequently excessive accumulation of lactate and protons decreases extracellular pH, leading to a microenvironment considered conducive to promotion of tumor motility, invasion and metastasis, and one that will invariably influence response to drug treatment. This review will critically assess the evidence forming the basis of current understanding of the precise pH conditions in the extracellular tumor matrix, its regulation by cancer cells and relationship with hypoxia, its relevance to malignant progression and its exploitation for therapeutic advantage.
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Affiliation(s)
- Mariam Abaza
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kuwait University, PO Box 24923, Safat 13110, Kuwait
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38
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Overcoming intratumor heterogeneity of polygenic cancer drug resistance with improved biomarker integration. Neoplasia 2013; 14:1278-89. [PMID: 23308059 DOI: 10.1593/neo.122096] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 12/11/2012] [Accepted: 12/11/2012] [Indexed: 12/14/2022] Open
Abstract
Improvements in technology and resources are helping to advance our understanding of cancer-initiating events as well as factors involved with tumor progression, adaptation, and evasion of therapy. Tumors are well known to contain diverse cell populations and intratumor heterogeneity affords neoplasms with a diverse set of biologic characteristics that can be used to evolve and adapt. Intratumor heterogeneity has emerged as a major hindrance to improving cancer patient care. Polygenic cancer drug resistance necessitates reconsidering drug designs to include polypharmacology in pursuit of novel combinatorial agents having multitarget activity to overcome the diverse and compensatory signaling pathways in which cancer cells use to survive and evade therapy. Advances will require integration of different biomarkers such as genomics and imaging to provide for more adequate elucidation of the spatially varying location, type, and extent of diverse intratumor signaling molecules to provide for a rationale-based personalized cancer medicine strategy.
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39
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Ward C, Langdon SP, Mullen P, Harris AL, Harrison DJ, Supuran CT, Kunkler IH. New strategies for targeting the hypoxic tumour microenvironment in breast cancer. Cancer Treat Rev 2013; 39:171-9. [PMID: 23063837 DOI: 10.1016/j.ctrv.2012.08.004] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Accepted: 08/27/2012] [Indexed: 01/08/2023]
Abstract
Radiation and drug resistance remain major challenges and causes of mortality in the treatment of locally advanced, recurrent and metastatic breast cancer. Metabolic reprogramming is a recently recognised hallmark of cancer with the hypoxic acidic extracellular environment as a major driver of invasion and metastases. Nearly 40% of all breast cancers and 50% of locally advanced breast cancers are hypoxic and their altered metabolism is strongly linked to resistance to radiotherapy and systemic therapy. The dependence of metabolically adapted breast cancer cells on alterations in cell function presents a wide range of new therapeutic targets such as carbonic anhydrase IX (CAIX). This review highlights preclinical approaches to evaluating an array of targets against tumour metabolism in breast cancer and early phase clinical studies on efficacy.
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Affiliation(s)
- Carol Ward
- Breakthrough Breast Unit and Division of Pathology, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Crewe Road, Edinburgh EH4 2XU, UK.
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40
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Garcia-Closas M, Couch FJ, Lindstrom S, Michailidou K, Schmidt MK, Brook MN, orr N, Rhie SK, Riboli E, Feigelson HS, Le Marchand L, Buring JE, Eccles D, Miron P, Fasching PA, Brauch H, Chang-Claude J, Carpenter J, Godwin AK, Nevanlinna H, Giles GG, Cox A, Hopper JL, Bolla MK, Wang Q, Dennis J, Dicks E, Howat WJ, Schoof N, Bojesen SE, Lambrechts D, Broeks A, Andrulis IL, Guénel P, Burwinkel B, Sawyer EJ, Hollestelle A, Fletcher O, Winqvist R, Brenner H, Mannermaa A, Hamann U, Meindl A, Lindblom A, Zheng W, Devillee P, Goldberg MS, Lubinski J, Kristensen V, Swerdlow A, Anton-Culver H, Dörk T, Muir K, Matsuo K, Wu AH, Radice P, Teo SH, Shu XO, Blot W, Kang D, Hartman M, Sangrajrang S, Shen CY, Southey MC, Park DJ, Hammet F, Stone J, Veer LJV, Rutgers EJ, Lophatananon A, Stewart-Brown S, Siriwanarangsan P, Peto J, Schrauder MG, Ekici AB, Beckmann MW, Silva IDS, Johnson N, Warren H, Tomlinson I, Kerin MJ, Miller N, Marme F, Schneeweiss A, Sohn C, Truong T, Laurent-Puig P, Kerbrat P, Nordestgaard BG, Nielsen SF, Flyger H, Milne RL, Perez JIA, Menéndez P, Müller H, Arndt V, Stegmaier C, Lichtner P, Lochmann M, Justenhoven C, Ko YD, Muranen TA, Aittomäki K, Blomqvist C, Greco D, Heikkinen T, Ito H, Iwata H, Yatabe Y, Antonenkova NN, Margolin S, Kataja V, Kosma VM, Hartikainen JM, Balleine R, Tseng CC, Van Den Berg D, Stram DO, Neven P, Dieudonné AS, Leunen K, Rudolph A, Nickels S, Flesch-Janys D, Peterlongo P, Peissel B, Bernard L, Olson JE, Wang X, Stevens K, Severi G, Baglietto L, Mclean C, Coetzee GA, Feng Y, Henderson BE, Schumacher F, Bogdanova NV, Labrèche F, Dumont M, Yip CH, Taib NAM, Cheng CY, Shrubsole M, Long J, Pylkäs K, Jukkola-Vuorinen A, Kauppila S, knight JA, Glendon G, Mulligan AM, Tollenaar RAEM, Seynaeve CM, Kriege M, Hooning MJ, Van den Ouweland AMW, Van Deurzen CHM, Lu W, Gao YT, Cai H, Balasubramanian SP, Cross SS, Reed MWR, Signorello L, Cai Q, Shah M, Miao H, Chan CW, Chia KS, Jakubowska A, Jaworska K, Durda K, Hsiung CN, Wu PE, Yu JC, Ashworth A, Jones M, Tessier DC, González-Neira A, Pita G, Alonso MR, Vincent D, Bacot F, Ambrosone CB, Bandera EV, John EM, Chen GK, Hu JJ, Rodriguez-gil JL, Bernstein L, Press MF, Ziegler RG, Millikan RM, Deming-Halverson SL, Nyante S, Ingles SA, Waisfisz Q, Tsimiklis H, Makalic E, Schmidt D, Bui M, Gibson L, Müller-Myhsok B, Schmutzler RK, Hein R, Dahmen N, Beckmann L, Aaltonen K, Czene K, Irwanto A, Liu J, Turnbull C, Rahman N, Meijers-Heijboer H, Uitterlinden AG, Rivadeneira F, Olswold C, Slager S, Pilarski R, Ademuyiwa F, Konstantopoulou I, Martin NG, Montgomery GW, Slamon DJ, Rauh C, Lux MP, Jud SM, Bruning T, Weaver J, Sharma P, Pathak H, Tapper W, Gerty S, Durcan L, Trichopoulos D, Tumino R, Peeters PH, Kaaks R, Campa D, Canzian F, Weiderpass E, Johansson M, Khaw KT, Travis R, Clavel-Chapelon F, Kolonel LN, Chen C, Beck A, Hankinson SE, Berg CD, Hoover RN, Lissowska J, Figueroa JD, Chasman DI, Gaudet MM, Diver WR, Willett WC, Hunter DJ, Simard J, Benitez J, Dunning AM, Sherman ME, Chenevix-Trench G, Chanock SJ, Hall P, Pharoah PDP, Vachon C, Easton DF, Haiman CA, Kraft P. Genome-wide association studies identify four ER negative-specific breast cancer risk loci. Nat Genet 2013; 45:392-8, 398e1-2. [PMID: 23535733 PMCID: PMC3771695 DOI: 10.1038/ng.2561] [Citation(s) in RCA: 323] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 01/29/2013] [Indexed: 12/14/2022]
Abstract
Estrogen receptor (ER)-negative tumors represent 20-30% of all breast cancers, with a higher proportion occurring in younger women and women of African ancestry. The etiology and clinical behavior of ER-negative tumors are different from those of tumors expressing ER (ER positive), including differences in genetic predisposition. To identify susceptibility loci specific to ER-negative disease, we combined in a meta-analysis 3 genome-wide association studies of 4,193 ER-negative breast cancer cases and 35,194 controls with a series of 40 follow-up studies (6,514 cases and 41,455 controls), genotyped using a custom Illumina array, iCOGS, developed by the Collaborative Oncological Gene-environment Study (COGS). SNPs at four loci, 1q32.1 (MDM4, P = 2.1 × 10(-12) and LGR6, P = 1.4 × 10(-8)), 2p24.1 (P = 4.6 × 10(-8)) and 16q12.2 (FTO, P = 4.0 × 10(-8)), were associated with ER-negative but not ER-positive breast cancer (P > 0.05). These findings provide further evidence for distinct etiological pathways associated with invasive ER-positive and ER-negative breast cancers.
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Affiliation(s)
- Montserrat Garcia-Closas
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
- Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
| | - Fergus J Couch
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Sara Lindstrom
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Kyriaki Michailidou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Marjanka K Schmidt
- Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Mark N Brook
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
| | - Nick orr
- Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
| | - Suhn Kyong Rhie
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Elio Riboli
- School of Public Health, Imperial College, London, UK
| | | | - Loic Le Marchand
- Epidemiology Program, Cancer Research Center, University of Hawaii, Honolulu, Hawaii, USA
| | - Julie E Buring
- Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Diana Eccles
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Penelope Miron
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Hiltrud Brauch
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
- University of Tübingen, Tübingen, Germany
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jane Carpenter
- Australian Breast Cancer Tissue Bank, University of Sydney at the Westmead Millennium Institute, Westmead, New South Wales, Australia
| | - Andrew K Godwin
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Heli Nevanlinna
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Graham G Giles
- Cancer Epidemiology Centre, The Cancer Council Victoria, Melbourne, Victoria, Australia
- School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Angela Cox
- Cancer Research UK/Yorkshire Cancer Research Sheffield Cancer Research Centre, Department of Oncology, University of Sheffield, Sheffield, UK
| | - John L Hopper
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Ed Dicks
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Will J Howat
- Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Cambridge, UK
| | - Nils Schoof
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Stig E Bojesen
- Copenhagen General Population Study, Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Diether Lambrechts
- Vesalius Research Center (VRC), VIB, Leuven, Belgium
- Department of Oncology, University of Leuven, Leuven, Belgium
| | - Annegien Broeks
- Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Irene L Andrulis
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Ontario Cancer Genetics Network, Fred A. Litwin Center for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Pascal Guénel
- University Paris–Sud, Unité Mixte de Recherche Scientifique (UMRS) 1018, Villejuif, France
- INSERM (National Institute of Health and Medical Research), CESP (Center for Research in Epidemiology and Population Health), Environmental Epidemiology of Cancer, Villejuif, France
| | - Barbara Burwinkel
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
- Molecular Epidemiology Group, DKFZ, Heidelberg, Germany
| | - Elinor J Sawyer
- Division of Cancer Studies, National Institute for Health Research (NIHR) Comprehensive Biomedical Research Centre, Guy’s & St. Thomas’ National Health Service (NHS) Foundation Trust in partnership with King’s College London, London, UK
| | - Antoinette Hollestelle
- Department of Medical Oncology, Erasmus University Medical Center–Daniel Den Hoed Cancer Center, Rotterdam, The Netherlands
| | - Olivia Fletcher
- Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
| | - Robert Winqvist
- Laboratory of Cancer Genetics and Tumor Biology, Department of Clinical Genetics, Biocenter Oulu, University of Oulu, Oulu University Hospital, Oulu, Finland
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany
| | - Arto Mannermaa
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland
- Biocenter Kuopio, Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland
| | - Ute Hamann
- Molecular Genetics of Breast Cancer, DKFZ, Heidelberg, Germany
| | - Alfons Meindl
- Division for Gynaecological Tumor Genetics, Clinic of Gynaecology and Obstetrics, Technische Universität München, Munich, Germany
- Division of Gynaecology and Obstetrics, Technische Universität München, Munich, Germany
| | - Annika Lindblom
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Wei Zheng
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Peter Devillee
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pathology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Mark S Goldberg
- Department of Medicine, McGill University, Montreal, Quebec, Canada
- Division of Clinical Epidemiology, McGill University Health Centre, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Jan Lubinski
- Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Vessela Kristensen
- Department of Genetics, Institute for Cancer Research, Oslo University Hospital, Radiumhospitalet, Oslo, Norway
- Faculty of Medicine (Faculty Division Ahus), Universitetet i Oslo, Oslo, Norway
| | - Anthony Swerdlow
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
| | - Hoda Anton-Culver
- Department of Epidemiology, University of California–Irvine, Irvine, California, USA
| | - Thilo Dörk
- Department of Obstetrics and Gynaecology, Hannover Medical School, Hannover, Germany
| | - Kenneth Muir
- Warwick Medical School, Warwick University, Coventry, UK
- Institute of Population Health, University of Manchester, Manchester, UK
| | - Keitaro Matsuo
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Paolo Radice
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale Tumori (INT), Milan, Italy
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Milan, Italy
| | - Soo Hwang Teo
- Cancer Research Initiatives Foundation, Sime Darby Medical Centre, Subang Jaya, University Malaya Cancer Research Institute, University Malaya, Kuala Lumpur, Malaysia
- Breast Cancer Research Unit, University Malaya Cancer Research Institute, University Malaya, Kuala Lumpur, Malaysia
| | - Xiao-Ou Shu
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - William Blot
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- International Epidemiology Institute, Rockville, Maryland, USA
| | - Daehee Kang
- Seoul National University College of Medicine, Seoul, Korea
| | - Mikael Hartman
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | | | - Chen-Yang Shen
- Colleague of Public Health, China Medical University, Taichong, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Melissa C Southey
- Department of Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Daniel J Park
- Department of Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Fleur Hammet
- Department of Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jennifer Stone
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Laura J Van’t Veer
- Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Emiel J Rutgers
- Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | | | | | | | - Julian Peto
- Non-communicable Disease Epidemiology Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Michael G Schrauder
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
| | - Arif B Ekici
- Institute of Human Genetics, Friedrich Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
| | - Isabel dos Santos Silva
- Non-communicable Disease Epidemiology Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Nichola Johnson
- Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
| | - Helen Warren
- Non-communicable Disease Epidemiology Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Ian Tomlinson
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
- Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Michael J Kerin
- Department of Surgery, Clinical Science Institute, University Hospital and National University of Ireland, Galway, Ireland
| | - Nicola Miller
- Department of Surgery, Clinical Science Institute, University Hospital and National University of Ireland, Galway, Ireland
| | - Federick Marme
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
- National Center for Tumor Diseases, University of Heidelberg, Heidelberg, Germany
| | - Andreas Schneeweiss
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
- National Center for Tumor Diseases, University of Heidelberg, Heidelberg, Germany
| | - Christof Sohn
- Department of Obstetrics and Gynecology, University of Heidelberg, Heidelberg, Germany
| | - Therese Truong
- University Paris–Sud, Unité Mixte de Recherche Scientifique (UMRS) 1018, Villejuif, France
- INSERM (National Institute of Health and Medical Research), CESP (Center for Research in Epidemiology and Population Health), Environmental Epidemiology of Cancer, Villejuif, France
| | | | - Pierre Kerbrat
- Centre Eugène Marquis, Department of Medical Oncology, Rennes, France
| | - Børge G Nordestgaard
- Copenhagen General Population Study, Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Sune F Nielsen
- Copenhagen General Population Study, Department of Clinical Biochemistry, Herlev Hospital, Copenhagen University Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Flyger
- Department of Breast Surgery, Herlev Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - Roger L Milne
- Genetic & Molecular Epidemiology Group, Human Cancer Genetics Program, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | | | | | - Heiko Müller
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging Research, DKFZ, Heidelberg, Germany
| | | | - Peter Lichtner
- Institute of Human Genetics, Technische Universität München, Munich, Germany
- Institute of Human Genetics, Helmholtz Zentrum München–German Research Center for Environmental Health, Neuherberg, Germany
| | - Magdalena Lochmann
- Division of Gynaecology and Obstetrics, Technische Universität München, Munich, Germany
| | - Christina Justenhoven
- Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
- University of Tübingen, Tübingen, Germany
| | - Yon-Dschun Ko
- Department of Internal Medicine, Evangelische Kliniken Bonn, Johanniter Krankenhaus, Bonn, Germany
| | | | - Taru A Muranen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Kristiina Aittomäki
- Department of Clinical Genetics, Helsinki University Central Hospital, Helsinki, Finland
| | - Carl Blomqvist
- Department of Oncology, Helsinki University Central Hospital, Helsinki, Finland
| | - Dario Greco
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Tuomas Heikkinen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Hidemi Ito
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Yasushi Yatabe
- Department of Pathology and Molecular Diagnostics, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Natalia N Antonenkova
- N.N. Alexandrov Research Institute of Oncology and Medical Radiology, Minsk, Belarus
| | - Sara Margolin
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Vesa Kataja
- School of Medicine, Institute of Clinical Medicine, Pathology and Forensic Medicine, Kuopio, Finland
- Biocenter Kuopio, Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland
- Cancer Center, Kuopio University Hospital, Kuopio, Finland
| | - Veli-Matti Kosma
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland
- Biocenter Kuopio, Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland
| | - Jaana M Hartikainen
- Imaging Center, Department of Clinical Pathology, Kuopio University Hospital, Kuopio, Finland
- Biocenter Kuopio, Cancer Center of Eastern Finland, University of Eastern Finland, Kuopio, Finland
| | - Rosemary Balleine
- Western Sydney Local Health District, Westmead Millennium Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
- Nepean Blue Mountains Local Health District, Westmead Millennium Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | | | - Chiu-Chen Tseng
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - David Van Den Berg
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Daniel O Stram
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Patrick Neven
- Multidisciplinary Breast Center, University Hospital Gasthuisberg, Department of Oncology, University of Leuven, Leuven, Belgium
| | - Anne-Sophie Dieudonné
- Multidisciplinary Breast Center, University Hospital Gasthuisberg, Department of Oncology, University of Leuven, Leuven, Belgium
| | - Karin Leunen
- Multidisciplinary Breast Center, University Hospital Gasthuisberg, Department of Oncology, University of Leuven, Leuven, Belgium
| | - Anja Rudolph
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Nickels
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Dieter Flesch-Janys
- Department of Cancer Epidemiology/Clinical Cancer Registry, University Clinic Hamburg-Eppendorf, Hamburg, Germany
- Institute for Medical Biometrics and Epidemiology, University Clinic Hamburg-Eppendorf, Hamburg, Germany
| | - Paolo Peterlongo
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale Tumori (INT), Milan, Italy
- IFOM, Fondazione Istituto FIRC di Oncologia Molecolare, Milan, Italy
| | - Bernard Peissel
- Unit of Medical Genetics, Department of Preventive and Predictive Medicine, Fondazione IRCCS INT, Milan, Italy
| | - Loris Bernard
- Department of Experimental Oncology, Istituto Europeo di Oncologia, Milan, Italy
- Cogentech Cancer Genetic Test Laboratory, Milan, Italy
| | - Janet E Olson
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Xianshu Wang
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
- Department of Laboratory Medicine and Pathology, Division of Experimental Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Kristen Stevens
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Gianluca Severi
- Cancer Epidemiology Centre, The Cancer Council Victoria, Melbourne, Victoria, Australia
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Laura Baglietto
- Cancer Epidemiology Centre, The Cancer Council Victoria, Melbourne, Victoria, Australia
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Catriona Mclean
- Department of Anatomical Pathology, The Alfred Hospital, Melbourne, Victoria, Australia
| | - Gerhard A Coetzee
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
- Department of Urology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Ye Feng
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Brian E Henderson
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Fredrick Schumacher
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Natalia V Bogdanova
- Department of Obstetrics and Gynaecology, Hannover Medical School, Hannover, Germany
- Department of Radiation Oncology, Hannover Medical School, Hannover, Germany
| | - France Labrèche
- Département de Médecine Sociale et Préventive, Département de Santé Environnementale et Santé au Travail, Université de Montréal, Montreal, Quebec, Canada
| | - Martine Dumont
- Cancer Genomics Laboratory, Centre Hospitalier Universitaire de Québec and Laval University, Quebec City, Quebec, Canada
| | - Cheng Har Yip
- Breast Cancer Research Unit, University Malaya Cancer Research Institute, University Malaya, Kuala Lumpur, Malaysia
| | - Nur Aishah Mohd Taib
- Breast Cancer Research Unit, University Malaya Cancer Research Institute, University Malaya, Kuala Lumpur, Malaysia
| | - Ching-Yu Cheng
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- Singapore Eye Research Institute, National University of Singapore, Singapore
| | - Martha Shrubsole
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Jirong Long
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Katri Pylkäs
- Laboratory of Cancer Genetics and Tumor Biology, Department of Clinical Genetics, Biocenter Oulu, University of Oulu, Oulu University Hospital, Oulu, Finland
| | | | - Saila Kauppila
- Department of Pathology, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Julia A knight
- Ontario Cancer Genetics Network, Fred A. Litwin Center for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Gord Glendon
- Ontario Cancer Genetics Network, Fred A. Litwin Center for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Anna Marie Mulligan
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Department of Laboratory Medicine, Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, Ontario, Canada
| | | | - Caroline M Seynaeve
- Department of Medical Oncology, Erasmus University Medical Center–Daniel Den Hoed Cancer Center, Rotterdam, The Netherlands
| | - Mieke Kriege
- Department of Medical Oncology, Erasmus University Medical Center–Daniel Den Hoed Cancer Center, Rotterdam, The Netherlands
| | - Maartje J Hooning
- Department of Medical Oncology, Erasmus University Medical Center–Daniel Den Hoed Cancer Center, Rotterdam, The Netherlands
| | | | | | - Wei Lu
- Shanghai Center for Disease Control and Prevention, Shanghai, China
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | - Hui Cai
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Sabapathy P Balasubramanian
- Cancer Research UK/Yorkshire Cancer Research Sheffield Cancer Research Centre, Department of Oncology, University of Sheffield, Sheffield, UK
| | - Simon S Cross
- Academic Unit of Pathology, Department of Neuroscience, University of Sheffield, Sheffield, UK
| | - Malcolm W R Reed
- Cancer Research UK/Yorkshire Cancer Research Sheffield Cancer Research Centre, Department of Oncology, University of Sheffield, Sheffield, UK
| | - Lisa Signorello
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Qiuyin Cai
- Division of Clinical Epidemiology, McGill University Health Centre, Royal Victoria Hospital, Montreal, Quebec, Canada
| | - Mitul Shah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Hui Miao
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Ching Wan Chan
- Department of Surgery, National University Health System, Singapore
| | - Kee Seng Chia
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Anna Jakubowska
- Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Katarzyna Jaworska
- Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Katarzyna Durda
- Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Chia-Ni Hsiung
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Pei-Ei Wu
- Taiwan Biobank, Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Jyh-Cherng Yu
- Department of Surgery, Tri-Service General Hospital, Taipei, Taiwan
| | - Alan Ashworth
- Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
| | - Michael Jones
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
| | - Daniel C Tessier
- McGill University and Génome Québec Innovation Centre, Montreal, Québec, Canada
| | - Anna González-Neira
- Human Genotyping Unit–CEGEN, Human Cancer Genetics Programme, CNIO, Madrid, Spain
| | - Guillermo Pita
- Human Genotyping Unit–CEGEN, Human Cancer Genetics Programme, CNIO, Madrid, Spain
| | - M Rosario Alonso
- Human Genotyping Unit–CEGEN, Human Cancer Genetics Programme, CNIO, Madrid, Spain
| | - Daniel Vincent
- McGill University and Génome Québec Innovation Centre, Montreal, Québec, Canada
| | - Francois Bacot
- McGill University and Génome Québec Innovation Centre, Montreal, Québec, Canada
| | - Christine B Ambrosone
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Elisa V Bandera
- The Cancer Institute of New Jersey, New Brunswick, New Jersey, USA
| | - Esther M John
- Cancer Prevention Institute of California, Fremont, California, USA
- Department of Health Research and Policy, Division of Epidemiology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Gary K Chen
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Jennifer J Hu
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
- Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jorge L Rodriguez-gil
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida, USA
- Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Leslie Bernstein
- Division of Cancer Etiology, Department of Population Science, Beckman Research Institute, City of Hope, Duarte, California, USA
| | - Michael F Press
- Department of Pathology, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Regina G Ziegler
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Robert M Millikan
- Department of Epidemiology, Gillings School of Global Public Health, Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sandra L Deming-Halverson
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Division of Epidemiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Sarah Nyante
- Department of Epidemiology, Gillings School of Global Public Health, Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
| | - Sue A Ingles
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Quinten Waisfisz
- Section of Oncogenetics, Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - Helen Tsimiklis
- Genetic Epidemiology Laboratory, Department of Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Enes Makalic
- School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Daniel Schmidt
- School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Minh Bui
- School of Population Health, The University of Melbourne, Melbourne, Victoria, Australia
- Centre for Molecular, Environmental, Genetic and Analytic Epidemiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Lorna Gibson
- Non-communicable Disease Epidemiology Department, London School of Hygiene and Tropical Medicine, London, UK
| | - Bertram Müller-Myhsok
- Statistical Genetics Research Group, Max Planck Institute of Psychiatry, Munich, Germany
| | - Rita K Schmutzler
- Centre of Hereditary Breast and Ovarian Cancer, University Hospital, Cologne, Germany
- Centre of Integrated Oncology, University Hospital, Cologne, Germany
| | - Rebecca Hein
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
- PMV (Primärmedizinische Versorgung) Research Group, Department of Child and Adolescent Psychiatry and Psychotherapy, University of Cologne, Cologne, Germany
| | - Norbert Dahmen
- Department of Psychiatry, University of Mainz, Mainz, Germany
| | - Lars Beckmann
- Institute for Quality and Efficiency in Health Care (IQWiG), Cologne, Germany
| | - Kirsimari Aaltonen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
- Department of Clinical Genetics, Helsinki University Central Hospital, Helsinki, Finland
- Department of Oncology, Helsinki University Central Hospital, Helsinki, Finland
| | - Kamila Czene
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Astrid Irwanto
- Human Genetics Division, Genome Institute of Singapore, Singapore
| | - Jianjun Liu
- Human Genetics Division, Genome Institute of Singapore, Singapore
| | - Clare Turnbull
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
| | | | - Nazneen Rahman
- Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton, UK
| | - Hanne Meijers-Heijboer
- Section of Oncogenetics, Department of Clinical Genetics, VU University Medical Center, Amsterdam, The Netherlands
| | - Andre G Uitterlinden
- Department of Internal Medicine and Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Fernando Rivadeneira
- Department of Internal Medicine and Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Curtis Olswold
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Susan Slager
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Robert Pilarski
- Department of Internal Medicine, James Comprehensive Cancer Center, Ohio State University, Columbus, Ohio, USA
| | | | - Irene Konstantopoulou
- Molecular Diagnostics Laboratory, Institute of Radioisotopes and Radiodiagnostic Products (IRRP), National Centre for Scientific Research Demokritos, Aghia Paraskevi Attikis, Athens, Greece
| | - Nicholas G Martin
- QIMR GWAS Collective, Queensland Institute of Medical Research, Brisbane, Queensland, Australia
| | - Grant W Montgomery
- QIMR GWAS Collective, Queensland Institute of Medical Research, Brisbane, Queensland, Australia
| | - Dennis J Slamon
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
- Department of Medicine, Division of Hematology and Oncology, University of California, Los Angeles, Los Angeles, California, USA
| | - Claudia Rauh
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
| | - Michael P Lux
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
| | - Sebastian M Jud
- Department of Gynecology and Obstetrics, University Breast Center Franconia, University Hospital Erlangen, Erlangen, Germany
| | - Thomas Bruning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance (IPA), Bochum, Germany
| | - Joellen Weaver
- Biosample Repository, Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA
| | - Priyanka Sharma
- Division of Hematology and Oncology, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Harsh Pathak
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Will Tapper
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Sue Gerty
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Lorraine Durcan
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Dimitrios Trichopoulos
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
- Bureau of Epidemiologic Research, Academy of Athens, Athens, Greece
- Hellenic Health Foundation, Athens, Greece
| | - Rosario Tumino
- Cancer Registry, Histopathology Unit Civile MPArezzo Hospital, Ragusa, Italy
| | - Petra H Peeters
- Julius Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Daniele Campa
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Federico Canzian
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Elisabete Weiderpass
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Community Medicine, University of Tromsø, Tromsø, Norway
- Cancer Registry of Norway, Oslo, Norway
| | - Mattias Johansson
- Genetic Epidemiology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Kay-Tee Khaw
- Clinical Gerontology Unit, University of Cambridge, Cambridge, UK
| | - Ruth Travis
- Cancer Epidemiology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Françoise Clavel-Chapelon
- University Paris–Sud, Unité Mixte de Recherche Scientifique (UMRS) 1018, Villejuif, France
- INSERM (National Institute of Health and Medical Research), CESP (Center for Research in Epidemiology and Population Health), Environmental Epidemiology of Cancer, Villejuif, France
| | - Laurence N Kolonel
- Département de Médecine Sociale et Préventive, Département de Santé Environnementale et Santé au Travail, Université de Montréal, Montreal, Quebec, Canada
| | - Constance Chen
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Andy Beck
- Department of Pathology, Beth Israel DeaconessMedical Center, Boston, Massachusetts, USA
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
| | - Susan E Hankinson
- Division of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Christine D Berg
- Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland, USA
| | - Robert N Hoover
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Jonine D Figueroa
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Mia M Gaudet
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia, USA
| | - W Ryan Diver
- Epidemiology Research Program, American Cancer Society, Atlanta, Georgia, USA
| | - Walter C Willett
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
| | - David J Hunter
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Jacques Simard
- Cancer Genomics Laboratory, Centre Hospitalier Universitaire de Québec and Laval University, Quebec City, Quebec, Canada
| | - Javier Benitez
- Human Genotyping Unit–CEGEN, Human Cancer Genetics Programme, CNIO, Madrid, Spain
- Human Genetics Group, CNIO, Madrid, Spain
- Centro de Investigacion en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Mark E Sherman
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Georgia Chenevix-Trench
- Department of Genetics, Queensland Institute of Medical Research, Brisbane, Queensland, Australia
| | - Stephen J Chanock
- Epidemiology and Biostatistics Program, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Per Hall
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Celine Vachon
- Mayo Clinic College of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Christopher A Haiman
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California, USA
| | - Peter Kraft
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
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de Lange J, Teunisse AFAS, Vries MVD, Lodder K, Lam S, Luyten GPM, Bernal F, Jager MJ, Jochemsen AG. High levels of Hdmx promote cell growth in a subset of uveal melanomas. Am J Cancer Res 2012; 2:492-507. [PMID: 22957303 PMCID: PMC3433101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 07/21/2012] [Indexed: 06/01/2023] Open
Abstract
The p53 tumor suppressor pathway is inactivated in cancer either via direct mutation or via deregulation of upstream regulators or downstream effectors. P53 mutations are rare in uveal melanoma. Here we investigated the role of the p53 inhibitor Hdmx in uveal melanoma. We found Hdmx over-expression in a subset of uveal melanoma cell lines and fresh-frozen tumor samples. Hdmx depletion resulted in cell-line dependent growth inhibition, apparently correlating with differential Hdm2 levels. Surprisingly, p53 knockdown hardly rescued cell cycle arrest and apoptosis induction upon Hdmx knockdown, whereas it effectively prevented growth suppression induced by the potent p53 activator Nutlin-3. In addition, two compounds inhibiting Hdmx function or expression, SAH-p53-8 and XI-011, also elicited a growth inhibitory effect in a partly p53-independent manner. These findings suggest a novel, growth-promoting function of Hdmx that does not rely on its ability to inhibit p53. We provide evidence for a contribution of p27 protein induction to the observed p53-independent G1 arrest in response to Hdmx knockdown. In conclusion, our study establishes the importance of Hdmx as an oncogene in a subset of uveal melanomas and widens the spectrum of its function beyond p53 inhibition.
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Affiliation(s)
- Job de Lange
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Amina FAS Teunisse
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Matty Verlaan-de Vries
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Kirsten Lodder
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Suzanne Lam
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Gregorius PM Luyten
- Department of Ophthalmology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Federico Bernal
- Metabolism Branch, National Cancer Institute, National Institutes of HealthBethesda, MD 20892-1374, USA
| | - Martine J Jager
- Department of Ophthalmology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
| | - Aart G Jochemsen
- Department of Molecular Cell Biology, Leiden University Medical CenterPO Box 9600, 2300 RC Leiden, The Netherlands
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42
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The interconnectedness of cancer cell signaling. Neoplasia 2012; 13:1183-93. [PMID: 22241964 DOI: 10.1593/neo.111746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 12/14/2011] [Accepted: 12/14/2011] [Indexed: 11/18/2022] Open
Abstract
The elegance of fundamental and applied research activities have begun to reveal a myriad of spatial and temporal alterations in downstream signaling networks affected by cell surface receptor stimulation including G protein-coupled receptors and receptor tyrosine kinases. Interconnected biochemical pathways serve to integrate and distribute the signaling information throughout the cell by orchestration of complex biochemical circuits consisting of protein interactions and covalent modification processes. It is clear that scientific literature summarizing results from both fundamental and applied scientific research activities has served to provide a broad foundational biologic database that has been instrumental in advancing our continued understanding of underlying cancer biology. This article reflects on historical advances and the role of innovation in the competitive world of grant-sponsored research.
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