1
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Uno M, Bono H. Transcriptional Signatures of Domestication Revealed through Meta-Analysis of Pig, Chicken, Wild Boar, and Red Junglefowl Gene Expression Data. Animals (Basel) 2024; 14:1998. [PMID: 38998110 PMCID: PMC11240496 DOI: 10.3390/ani14131998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/25/2024] [Accepted: 07/04/2024] [Indexed: 07/14/2024] Open
Abstract
Domesticated animals have undergone significant changes in their behavior, morphology, and physiological functions during domestication. To identify the changes in gene expression associated with domestication, we collected the RNA-seq data of pigs, chickens, wild boars, and red junglefowl from public databases and performed a meta-analysis. Gene expression was quantified, and the expression ratio between domesticated animals and their wild ancestors (DW-ratio) was calculated. Genes were classified as "upregulated", "downregulated", or "unchanged" based on their DW-ratio, and the DW-score was calculated for each gene. Gene set enrichment analysis revealed that genes upregulated in pigs were related to defense from viral infection, whereas those upregulated in chickens were associated with aminoglycan and carbohydrate derivative catabolic processes. Genes commonly upregulated in pigs and chickens are involved in the immune response, olfactory learning, epigenetic regulation, cell division, and extracellular matrix. In contrast, genes upregulated in wild boar and red junglefowl are related to stress response, cell proliferation, cardiovascular function, neural regulation, and energy metabolism. These findings provide valuable insights into the genetic basis of the domestication process and highlight potential candidate genes for breeding applications.
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Affiliation(s)
- Motoki Uno
- Graduate School of Integrated Sciences for Life, Hiroshima University, 3-10-23 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
| | - Hidemasa Bono
- Graduate School of Integrated Sciences for Life, Hiroshima University, 3-10-23 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
- Genome Editing Innovation Center, Hiroshima University, 3-10-23 Kagamiyama, Higashi-Hiroshima 739-0046, Japan
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2
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Jin H, Kim J, Lee O, Kim H, No KT. Leveraging the Fragment Molecular Orbital Method to Explore the PLK1 Kinase Binding Site and Polo-Box Domain for Potent Small-Molecule Drug Design. Int J Mol Sci 2023; 24:15639. [PMID: 37958623 PMCID: PMC10650754 DOI: 10.3390/ijms242115639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Polo-like kinase 1 (PLK1) plays a pivotal role in cell division regulation and emerges as a promising therapeutic target for cancer treatment. Consequently, the development of small-molecule inhibitors targeting PLK1 has become a focal point in contemporary research. The adenosine triphosphate (ATP)-binding site and the polo-box domain in PLK1 present crucial interaction sites for these inhibitors, aiming to disrupt the protein's function. However, designing potent and selective small-molecule inhibitors can be challenging, requiring a deep understanding of protein-ligand interaction mechanisms at these binding sites. In this context, our study leverages the fragment molecular orbital (FMO) method to explore these site-specific interactions in depth. Using the FMO approach, we used the FMO method to elucidate the molecular mechanisms of small-molecule drugs binding to these sites to design PLK1 inhibitors that are both potent and selective. Our investigation further entailed a comparative analysis of various PLK1 inhibitors, each characterized by distinct structural attributes, helping us gain a better understanding of the relationship between molecular structure and biological activity. The FMO method was particularly effective in identifying key binding features and predicting binding modes for small-molecule ligands. Our research also highlighted specific "hot spot" residues that played a critical role in the selective and robust binding of PLK1. These findings provide valuable insights that can be used to design new and effective PLK1 inhibitors, which can have significant implications for developing anticancer therapeutics.
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Affiliation(s)
- Haiyan Jin
- The Interdisciplinary Graduate Program in Integrative Biotechnology & Translational Medicine, Yonsei University, Incheon 21983, Republic of Korea; (H.J.); (O.L.)
| | - Jongwan Kim
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
- Bioinformatics and Molecular Design Research Center (BMDRC), Incheon 21983, Republic of Korea;
| | - Onju Lee
- The Interdisciplinary Graduate Program in Integrative Biotechnology & Translational Medicine, Yonsei University, Incheon 21983, Republic of Korea; (H.J.); (O.L.)
| | - Hyein Kim
- Bioinformatics and Molecular Design Research Center (BMDRC), Incheon 21983, Republic of Korea;
| | - Kyoung Tai No
- The Interdisciplinary Graduate Program in Integrative Biotechnology & Translational Medicine, Yonsei University, Incheon 21983, Republic of Korea; (H.J.); (O.L.)
- Department of Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
- Bioinformatics and Molecular Design Research Center (BMDRC), Incheon 21983, Republic of Korea;
- Baobab AiBIO Co., Ltd., Incheon 21983, Republic of Korea
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3
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Feng S, Yuan S, Hou B, Liu Z, Xu Y, Hao S, Lu Y. CEP20 promotes invasion and metastasis of non-small cell lung cancer cells by depolymerizing microtubules. Sci Rep 2023; 13:17484. [PMID: 37838783 PMCID: PMC10576744 DOI: 10.1038/s41598-023-44754-8] [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: 05/20/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023] Open
Abstract
Worldwide, Lung cancer is the leading cause of cancer-related death and poses a direct health threat, non-small cell lung cancer (NSCLC) is the most common type. In this study, we demonstrated that centrosomal protein 20 (CEP20) is upregulated in NSCLC tissues and associated with cancer invasion metastasis. Notably, CEP20 depletion inhibited NSCLC cell proliferation, migration, and microtubule polymerization. Mechanistically, we discovered that CEP20 is critical in the development of NSCLC by regulating microtubule dynamics and cell adhesion-related signaling pathways. Furthermore, the knockdown or overexpression of CEP20 affects microtubule polymerization in A549 cell lines. Our research provides a promising therapeutic target for the diagnosis and treatment of lung cancer, as well as a theoretical and experimental basis for clinical application.
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Affiliation(s)
- Sijie Feng
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
- Jiaozuo Key Laboratory of Gynecological Oncology Medicine, Jiaozuo, China
| | - Shuai Yuan
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Baohua Hou
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Zhiqiang Liu
- School of Medicine, Henan Polytechnic University, Jiaozuo, China
| | - Yanjun Xu
- Department of Medical Thoracic Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Shuangying Hao
- School of Medicine, Henan Polytechnic University, Jiaozuo, China.
| | - Yunkun Lu
- School of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China.
- Jiaozuo Key Laboratory of Gynecological Oncology Medicine, Jiaozuo, China.
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4
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Çitli Ş, Ceylan AC, Erdemir F. Investigation of sub-chromosomal changes in males with idiopathic azoospermia by chromosomal microarray analysis. Andrologia 2022; 54:e14489. [PMID: 35672008 DOI: 10.1111/and.14489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/21/2022] [Accepted: 05/26/2022] [Indexed: 11/26/2022] Open
Abstract
Azoospermia consists of a significant proportion of infertility aetiology in males. Although known genetic abnormalities may explain roughly the third of infertility cases, the exact aetiology is still unclear. Chromosomal microarrays are widely used to detect sub chromosomal abnormalities (e.g., microdeletions and microduplications). This study aimed to investigate aetiology in patients with idiopathic azoospermia by using the chromosomal microarray method to detect possible sub chromosomal changes. Twenty-eight patients (with a mean age of 30.4 ± 9 years) that had been diagnosed with idiopathic azoospermia between January 2019 and December 2020 were included in the study. Genomic DNA isolated from the blood of patients were amplified using polymerase chain reaction and was subjected to chromosomal microarray analysis. A total of six microdeletions were identified as clinically significant: one pathogenic copy number variation (CNV), four likely pathogenic CNVs, and one CNV of unknown clinical significance. However, clinical findings indicated that these microdeletions, with variable expression levels, may affect the spermatogenesis process and induce azoospermia. Future investigations regarding the functional effect of these deletions may contribute to our understanding of azoospermia aetiology.
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Affiliation(s)
- Şenol Çitli
- Department of Medical Genetics, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ahmet Cevdet Ceylan
- Department of Medical Genetics, Ankara Yıldırım Beyazıt University, Ankara, Turkey
| | - Fikret Erdemir
- Department of Urology, Faculty of Medicine, Tokat Gaziosmanpasa University, Tokat, Turkey
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5
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Iliaki S, Beyaert R, Afonina IS. Polo-like kinase 1 (PLK1) signaling in cancer and beyond. Biochem Pharmacol 2021; 193:114747. [PMID: 34454931 DOI: 10.1016/j.bcp.2021.114747] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
PLK1 is an evolutionary conserved Ser/Thr kinase that is best known for its role in cell cycle regulation and is expressed predominantly during the G2/S and M phase of the cell cycle. PLK1-mediated phosphorylation of specific substrates controls cell entry into mitosis, centrosome maturation, spindle assembly, sister chromatid cohesion and cytokinesis. In addition, a growing body of evidence describes additional roles of PLK1 beyond the cell cycle, more specifically in the DNA damage response, autophagy, apoptosis and cytokine signaling. PLK1 has an indisputable role in cancer as it controls several key transcription factors and promotes cell proliferation, transformation and epithelial-to-mesenchymal transition. Furthermore, deregulation of PLK1 results in chromosome instability and aneuploidy. PLK1 is overexpressed in many cancers, which is associated with poor prognosis, making PLK1 an attractive target for cancer treatment. Additionally, PLK1 is involved in immune and neurological disorders including Graft versus Host Disease, Huntington's disease and Alzheimer's disease. Unfortunately, newly developed small compound PLK1 inhibitors have only had limited success so far, due to low therapeutic response rates and toxicity. In this review we will highlight the current knowledge about the established roles of PLK1 in mitosis regulation and beyond. In addition, we will discuss its tumor promoting but also tumor suppressing capacities, as well as the available PLK1 inhibitors, elaborating on their efficacy and limitations.
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Affiliation(s)
- Styliani Iliaki
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium.
| | - Inna S Afonina
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, B-9052 Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, B-9052 Ghent, Belgium
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6
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Xu Z, Liu M, Gao C, Kuang W, Chen X, Liu F, Ge B, Yan X, Zhou T, Xie S. Centrosomal protein FOR20 knockout mice display embryonic lethality and left-right patterning defects. FEBS Lett 2021; 595:1462-1472. [PMID: 33686659 DOI: 10.1002/1873-3468.14071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/22/2022]
Abstract
Centrosomal protein FOR20 has been reported to be crucial for essential cellular processes, including ciliogenesis, cell migration, and cell cycle in vertebrates. However, the function of FOR20 during mammalian embryonic development remains unknown. To investigate the in vivo function of the For20 gene in mammals, we generated For20 homozygous knockout mice by gene targeting. Our data reveal that homozygous knockout of For20 results in significant embryonic growth arrest and lethality during gestation, while the heterozygotes show no obvious defects. The absence of For20 leads to impaired left-right patterning of embryos and reduced cilia in the embryonic node. Deletion of For20 also disrupts angiogenesis in yolk sacs and embryos. These results highlight a critical role of For20 in early mammalian embryogenesis.
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Affiliation(s)
- Zhangqi Xu
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Min Liu
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Cheng Gao
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenjun Kuang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiying Chen
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Feifei Liu
- Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, China
| | - Bai Ge
- Department of Neurobiology, Zhejiang University School of Medicine, Hangzhou, China.,Department of Neurology of Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoyi Yan
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Tianhua Zhou
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Center, Zhejiang University, Hangzhou, China.,Department of Molecular Genetics, University of Toronto, Canada
| | - Shanshan Xie
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
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7
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Almeida TC, da Silva GN. Resveratrol effects in bladder cancer: A mini review. Genet Mol Biol 2021; 44:e20200371. [PMID: 33749701 PMCID: PMC7983189 DOI: 10.1590/1678-4685-gmb-2020-0371] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
Bladder cancer has a high incidence worldwide and is the most common genitourinary cancer. The treatment of bladder cancer involves surgery and chemotherapy; however high failure rates and toxicity are observed. In this context, the search of new drugs aiming a more effective treatment is extremely necessary. Natural products are an important source of compounds with antiproliferative effects. Resveratrol is a naturally occurring plant polyphenol whose anticancer activity has been demonstrated in different types of cancer. This review summarizes the in vitro and in vivo studies using models of bladder cancer treated with resveratrol and discusses its different mechanisms of action.
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Affiliation(s)
- Tamires Cunha Almeida
- Universidade Federal de Ouro Preto, Laboratório de Pesquisas
Clínicas, Ouro Preto, MG, Brazil
| | - Glenda Nicioli da Silva
- Universidade Federal de Ouro Preto, Laboratório de Pesquisas
Clínicas, Ouro Preto, MG, Brazil
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8
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Shakeel I, Basheer N, Hasan GM, Afzal M, Hassan MI. Polo-like Kinase 1 as an emerging drug target: structure, function and therapeutic implications. J Drug Target 2021; 29:168-184. [PMID: 32886539 DOI: 10.1080/1061186x.2020.1818760] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/04/2020] [Accepted: 08/29/2020] [Indexed: 12/22/2022]
Abstract
Polo-like kinase 1 (PLK1) is a conserved mitotic serine-threonine protein kinase, functions as a regulatory protein, and is involved in the progression of the mitotic cycle. It plays important roles in the regulation of cell division, maintenance of genome stability, in spindle assembly, mitosis, and DNA-damage response. PLK1 is consist of a N-terminal serine-threonine kinase domain, and a C-terminal Polo-box domain (regulatory site). The expression of PLK1 is controlled by transcription repressor in the G1 stage and transcription activators in the G2 stage of the cell cycle. Overexpression of PLK1 results in undermining of checkpoints causes excessive cellular division resulting in abnormal cell growth, leading to the development of cancer. Blocking the expression of PLK1 by an antibody, RNA interference, or kinase inhibitors, causes a subsequent reduction in the proliferation of tumour cells and induction of apoptosis in tumour cells without affecting the healthy cells, suggesting an attractive target for drug development. In this review, we discuss detailed information on expression, gene and protein structures, role in different diseases, and progress in the design and development of PLK1 inhibitors. We have performed an in-depth analysis of the PLK1 inhibitors and their therapeutic implications with special focus to the cancer therapeutics.
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Affiliation(s)
- Ilma Shakeel
- Department of Zoology, Aligarh Muslim University, Aligarh, India
| | - Neha Basheer
- Institute of Neuroimmunology, Slovak Republic Bratislava, Bratislava, Slovakia
| | - Gulam Mustafa Hasan
- Department of Biochemistry, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj, Kingdom of Saudi Arabia
| | - Mohammad Afzal
- Department of Zoology, Aligarh Muslim University, Aligarh, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
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9
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Raab CA, Raab M, Becker S, Strebhardt K. Non-mitotic functions of polo-like kinases in cancer cells. Biochim Biophys Acta Rev Cancer 2021; 1875:188467. [PMID: 33171265 DOI: 10.1016/j.bbcan.2020.188467] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
Inhibitors of mitotic protein kinases are currently being developed as non-neurotoxic alternatives of microtubule-targeting agents (taxanes, vinca alkaloids) which provide a substantial survival benefit for patients afflicted with different types of solid tumors. Among the mitotic kinases, the cyclin-dependent kinases, the Aurora kinases, the kinesin spindle protein and Polo-like kinases (PLKs) have emerged as attractive targets of cancer therapeutics. The functions of mammalian PLK1-5 are traditionally linked to the regulation of the cell cycle and to the stress response. Especially the key role of PLK1 and PLK4 in cellular growth and proliferation, their overexpression in multiple types of human cancer and their druggability, make them appealing targets for cancer therapy. Inhibitors for PLK1 and PLK4 are currently being tested in multiple cancer trials. The clinical success of microtubule-targeting agents is attributed not solely to the induction of a mitotic arrest in cancer cells, but also to non-mitotic effects like targeting intracellular trafficking on microtubules. This raises the question whether new cancer targets like PLK1 and PLK4 regulate critical non-mitotic functions in tumor cells. In this article we summarize the important roles of PLK1-5 for the regulation of non-mitotic signaling. Due to these functions it is conceivable that inhibitors for PLK1 or PLK4 can target interphase cells, which underscores their attractive potential as cancer drug targets. Moreover, we also describe the contribution of the tumor-suppressors PLK2, PLK3 and PLK5 to cancer cell signaling outside of mitosis. These observations highlight the urgent need to develop highly specific ATP-competitive inhibitors for PLK4 and for PLK1 like the 3rd generation PLK-inhibitor Onvansertib to prevent the inhibition of tumor-suppressor PLKs in- and outside of mitosis. The remarkable feature of PLKs to encompass a unique druggable domain, the polo-box-domain (PBD) that can be found only in PLKs offers the opportunity for the development of inhibitors that target PLKs exclusively. Beyond the development of mono-specific ATP-competitive PLK inhibitors, the PBD as drug target will support the design of new drugs that eradicate cancer cells based on the mitotic and non-mitotic function of PLK1 and PLK4.
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Affiliation(s)
| | - Monika Raab
- Department of Gynecology, Goethe-University, Frankfurt, Germany
| | - Sven Becker
- Department of Gynecology, Goethe-University, Frankfurt, Germany
| | - Klaus Strebhardt
- Department of Gynecology, Goethe-University, Frankfurt, Germany; German Cancer Consortium (DKTK), German Cancer Research Center, Partner Site Frankfurt am Main, Frankfurt, Germany.
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10
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Almeida TC, Guerra CCC, De Assis BLG, de Oliveira Aguiar Soares RD, Garcia CCM, Lima AA, da Silva GN. Antiproliferative and toxicogenomic effects of resveratrol in bladder cancer cells with different TP53 status. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2019; 60:740-751. [PMID: 31095781 DOI: 10.1002/em.22297] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/02/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
The antitumor activity of resveratrol, a polyphenolic compound found mainly in grapes, has been studied in several types of cancer. In bladder cancer, its antiproliferative effects have already been demonstrated; however, its mechanism of action is not completely understood. The aim of this study was to evaluate resveratrol antitumor activity (12.5, 25, 50, 100, 150, 200, and 250 μM) and its possible mechanisms of action in bladder tumor cells with different TP53 gene status (RT4, grade 1, TP53 wild type; 5637-grade 2 and T24-grade 3, TP53 mutated). Cell proliferation, clonogenic survival, morphological changes, cell cycle progression, apoptosis rates, genotoxicity, global methylation, immunocytochemistry for p53 and PCNA and relative expression profiles of the AKT, mTOR, RASSF1A, HOXB3, SRC, PLK1, and DNMT1 were evaluated. Resveratrol decreased cell proliferation and induced DNA damage in all cell lines. Regarding the long-term effects, resveratrol reduced the number of colonies in all cell lines; however, TP53 wild type cells were more resistant. Increased rates of apoptosis were found in the TP53 wild type cells and this was accompanied by AKT, mTOR, and SRC downregulation. In addition, the resveratrol antiproliferative effects in wild type TP53 cells were accompanied by modulation of the DNMT1 gene. In the TP53 mutated cells, cell cycle arrest at S phase with PLK1 downregulation was observed. Additionally, there was modulation of the HOXB3/RASSF1A pathway and nuclear PCNA reduction in the highest-grade cells. In conclusion, resveratrol has antiproliferative activity in bladder tumor cells; however, the mechanisms of action are dependent on TP53 status. Environ. Mol. Mutagen., 60:740-751, 2019. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Tamires Cunha Almeida
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Camila Chaves Coelho Guerra
- Departamento de Ciências Biológicas (DECBI), Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | | | | | - Camila Carriao Machado Garcia
- Departamento de Ciências Biológicas (DECBI), Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Programa de Pós-graduação em Ciências Biológicas (CBIOL), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Angélica Alves Lima
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Glenda Nicioli da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas (CIPHARMA), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Programa de Pós-graduação em Ciências Biológicas (CBIOL), Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
- Departamento de Análises Clínicas (DEACL), Escola de Farmácia, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil
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11
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NudC-like protein 2 restrains centriole amplification by stabilizing HERC2. Cell Death Dis 2019; 10:628. [PMID: 31427565 PMCID: PMC6700069 DOI: 10.1038/s41419-019-1843-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 06/27/2019] [Accepted: 07/26/2019] [Indexed: 01/02/2023]
Abstract
Centriole duplication is tightly controlled to occur once per cell cycle, and disruption of this synchrony causes centriole amplification, which is frequently observed in many cancers. Our previous work showed that nuclear distribution gene C (NudC)-like protein 2 (NudCL2) localizes to centrosomes; however, little is known about the role of NudCL2 in the regulation of centrosome function. Here, we find that NudCL2 is required for accurate centriole duplication by stabilizing the E3 ligase HECT domain and RCC1-like domain-containing protein 2 (HERC2). Knockout (KO) of NudCL2 using CRISPR/Cas9-based genome editing or depletion of NudCL2 using small interfering RNA causes significant centriole amplification. Overexpression of NudCL2 significantly suppresses hydroxyurea-induced centriole overduplication. Quantitative proteomic analysis reveals that HERC2 is downregulated in NudCL2 KO cells. NudCL2 is shown to interact with and stabilize HERC2. Depletion of HERC2 leads to the similar defects to that in NudCL2-downregulated cells, and ectopic expression of HERC2 effectively rescues the centriole amplification caused by the loss of NudCL2, whereas the defects induced by HERC2 depletion cannot be reversed by exogenous expression of NudCL2. Either loss of NudCL2 or depletion of HERC2 leads to the accumulation of ubiquitin-specific peptidase 33 (USP33), a centrosomal protein that positively regulates centriole duplication. Moreover, knockdown of USP33 reverses centriole amplification in both NudCL2 KO and HERC2-depleted cells. Taken together, our data suggest that NudCL2 plays an important role in maintaining the fidelity of centriole duplication by stabilizing HERC2 to control USP33 protein levels, providing a previously undescribed mechanism restraining centriole amplification.
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12
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Li Y, Sun Q, Jiang M, Li S, Zhang J, Xu Z, Guo D, Gu T, Wang B, Xiao L, Zhou T, Zhuo W. KLF9 suppresses gastric cancer cell invasion and metastasis through transcriptional inhibition of MMP28. FASEB J 2019; 33:7915-7928. [PMID: 30913394 DOI: 10.1096/fj.201802531r] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yang Li
- College of Animal ScienceZhejiang University Hangzhou China
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Qiang Sun
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Mingchun Jiang
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Shuang Li
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Jiayu Zhang
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Zhangqi Xu
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Dongyang Guo
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Tianning Gu
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Boya Wang
- Department of PharmacySir Run Run Shaw HospitalZhejiang University School of Medicine Hangzhou China
| | - Lei Xiao
- College of Animal ScienceZhejiang University Hangzhou China
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
| | - Tianhua Zhou
- Institute of GastroenterologyZhejiang University Hangzhou China
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Hangzhou China
| | - Wei Zhuo
- Institute of GastroenterologyZhejiang University Hangzhou China
- Department of Cell BiologyCancer Institute of the Second Affiliated HospitalZhejiang University School of Medicine Hangzhou China
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13
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Xie S, Jin J, Xu Z, Huang Y, Zhang W, Zhao L, Lo LJ, Peng J, Liu W, Wang F, Shu Q, Zhou T. Centrosomal protein FOR20 is essential for cilia-dependent development in zebrafish embryos. FASEB J 2018; 33:3613-3622. [PMID: 30475641 DOI: 10.1096/fj.201801235rr] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Centrosomal proteins play critical roles in ciliogenesis. Mutations in many centrosomal proteins have been documented to contribute to developmental defects and cilium-related diseases. Centrosomal protein fibroblast growth factor receptor 1 oncogene partner-related protein of 20 kDa (FOR20) is crucial for ciliogenesis in mammalian cells and the unicellular eukaryote Paramecium; however, the biologic significance of FOR20 in vertebrate development remains unclear. We cloned the zebrafish homolog of the for20 gene and found that for20 mRNA is enriched in ciliated tissues during early zebrafish development. Knockdown of for20 by morpholino oligonucleotides in zebrafish results in multiple ciliary phenotypes, including curved body, hydrocephaly, pericardial edema, kidney cysts, and left-right asymmetry defects. for20 morphants show reduced number and length of cilia in Kupffer's vesicle and pronephric ducts. High-speed video microscopy reveals that cilia in most for20 morphants are consistently paralyzed or beat arrhythmically. To confirm the ciliary phenotypes of for20 morphants, we used the CRISPR/Cas9 system to disrupt for20 gene in zebrafish. for20 mutants exhibit multiple ciliary phenotypes resembling the defects in for20 morphants. All of these phenotypes in for20 morphants and mutants are significantly reversed by exogenous expression of for20 mRNA. Taken together, these data suggest that FOR20 is required for cilium-mediated processes during zebrafish embryogenesis.-Xie, S., Jin, J., Xu, Z., Huang, Y., Zhang, W., Zhao, L., Lo, L. J., Peng, J., Liu, W., Wang, F., Shu, Q., Zhou, T. Centrosomal protein FOR20 is essential for cilia-dependent development in zebrafish embryos.
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Affiliation(s)
- Shanshan Xie
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Juan Jin
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhangqi Xu
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuliang Huang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Wen Zhang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Lu Zhao
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Li Jan Lo
- Ministry of Education (MOE) Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou, China; and
| | - Jinrong Peng
- Ministry of Education (MOE) Key Laboratory for Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou, China; and
| | - Wei Liu
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Fudi Wang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Qiang Shu
- The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tianhua Zhou
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, China.,Joint Institute of Genetics and Genomic Medicine between Zhejiang University and University of Toronto, Hangzhou, China
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14
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Smith L, Farzan R, Ali S, Buluwela L, Saurin AT, Meek DW. The responses of cancer cells to PLK1 inhibitors reveal a novel protective role for p53 in maintaining centrosome separation. Sci Rep 2017; 7:16115. [PMID: 29170437 PMCID: PMC5701047 DOI: 10.1038/s41598-017-16394-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 11/10/2017] [Indexed: 01/20/2023] Open
Abstract
Polo-like kinase-1 (PLK1) plays a major role in driving mitotic events, including centrosome disjunction and separation, and is frequently over-expressed in human cancers. PLK1 inhibition is a promising therapeutic strategy and works by arresting cells in mitosis due to monopolar spindles. The p53 tumour suppressor protein is a short-lived transcription factor that can inhibit the growth, or stimulate the death, of developing cancer cells. Curiously, although p53 normally acts in an anti-cancer capacity, it can offer significant protection against inhibitors of PLK1, but the events underpinning this effect are not known. Here, we show that functional p53 reduces the sensitivity to PLK1 inhibitors by permitting centrosome separation to occur, allowing cells to traverse mitosis and re-enter cycle with a normal complement of 2N chromosomes. Protection entails the activation of p53 through the DNA damage-response enzymes, ATM and ATR, and requires the phosphorylation of p53 at the key regulatory site, Ser15. These data highlight a previously unrecognised link between p53, PLK1 and centrosome separation that has therapeutic implications for the use of PLK1 inhibitors in the clinic.
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Affiliation(s)
- Linda Smith
- Division of Cancer Research, Medical Research Institute, Ninewells Hospital and Medical School, The University of Dundee, Dundee, DD1 9, SY, United Kingdom
| | - Raed Farzan
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, United Kingdom
| | - Simak Ali
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, United Kingdom
| | - Laki Buluwela
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital Campus, London, W12 0NN, United Kingdom
| | - Adrian T Saurin
- Division of Cancer Research, Medical Research Institute, Ninewells Hospital and Medical School, The University of Dundee, Dundee, DD1 9, SY, United Kingdom
| | - David W Meek
- Division of Cancer Research, Medical Research Institute, Ninewells Hospital and Medical School, The University of Dundee, Dundee, DD1 9, SY, United Kingdom.
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15
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Li Z, Cui Q, Xu J, Cheng D, Wang X, Li B, Lee JM, Xia Q, Kusakabe T, Zhao P. SUMOylation regulates the localization and activity of Polo-like kinase 1 during cell cycle in the silkworm, Bombyx mori. Sci Rep 2017; 7:15536. [PMID: 29138491 PMCID: PMC5686133 DOI: 10.1038/s41598-017-15884-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 10/26/2017] [Indexed: 12/15/2022] Open
Abstract
Polo-like kinase 1 (Plk1) is a crucial cell cycle regulator by its specific localization and activity during cell cycle. It has been shown that the phosphorylation and ubiquitylation of Plk1 are required for its own activation and localization. Here, we report that SUMOylation regulates the activity of Plk1 in the lepidopteran insect of Bombyx mori. In the absence of SUMOylation, it causes the lost localization of Plk1 on centrosomes and kinetochores, as well as an uneven distribution in midzone. We further identify that the putative SUMOylation site of Bombyx Plk1 at lysine 466 is required for its localization on centrosomes, and K466 mutation in Plk1 could influence its interaction with Smt3/Ubc9 complex. These findings are also confirmed by Drosophila Polo and human Plk1, which together reveals a conserved role of Plk1 SUMOylation in mammals. Moreover, conjugation of Smt3 to Plk1 SUMOylation mutant promotes its localization on centrosomes and kinetochores, and rescues functional defects of chromosome alignment in cells depleted of endogenous Plk1. Altogether, the present data indicate that the SUMOylation of Plk1 could participate in proper chromosome alignment and segregation during mitosis, and provides a novel layer for the regulation of Plk1 localization and activity throughout cell cycle.
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Affiliation(s)
- Zhiqing Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Qixin Cui
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Jian Xu
- Laboratory of Insect Genome Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Fukuoka, Japan
| | - Daojun Cheng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Xiaoyan Wang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Bingqian Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Jae Man Lee
- Laboratory of Insect Genome Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Fukuoka, Japan
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Takahiro Kusakabe
- Laboratory of Insect Genome Science, Kyushu University Graduate School of Bioresource and Bioenvironmental Sciences, Fukuoka, Japan.
| | - Ping Zhao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China.
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China.
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16
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Feng S, Song Y, Shen M, Xie S, Li W, Lu Y, Yang Y, Ou G, Zhou J, Wang F, Liu W, Yan X, Liang X, Zhou T. Microtubule-binding protein FOR20 promotes microtubule depolymerization and cell migration. Cell Discov 2017; 3:17032. [PMID: 28884019 PMCID: PMC5583970 DOI: 10.1038/celldisc.2017.32] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/27/2017] [Indexed: 12/27/2022] Open
Abstract
Microtubules are highly dynamic filaments assembled from αβ-tubulin heterodimers and play important roles in many cellular processes, including cell division and migration. Microtubule dynamics is tightly regulated by microtubule-associated proteins (MAPs) that function by binding to microtubules or free tubulin dimers. Here, we report that FOR20 (FOP-related protein of 20 kDa), a conserved protein critical for ciliogenesis and cell cycle progression, is a previously uncharacterized MAP that facilitates microtubule depolymerization and promotes cell migration. FOR20 not only directly binds to microtubules but also regulates microtubule dynamics in vitro by decreasing the microtubule growth rate and increasing the depolymerization rate and catastrophe frequency. In the in vitro microtubule dynamics assays, FOR20 appears to preferentially interact with free tubulin dimers over microtubules. Depletion of FOR20 inhibits microtubule depolymerization and promotes microtubule regrowth after the nocodazole treatment in HeLa cells. In addition, FOR20 knockdown significantly inhibits both individual and collective migration of mammalian cells. Taken together, these data suggest that FOR20 functions as a MAP to promote microtubule depolymerization and cell migration.
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Affiliation(s)
- Sijie Feng
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
| | - Yinlong Song
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,Max-Planck Partner Group, School of Life Sciences, Tsinghua University, Beijing, Tianjing 300073, China
| | - Minhong Shen
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China
| | - Shanshan Xie
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
| | - Wenjing Li
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yi Lu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
| | - Yuehong Yang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
| | - Guangshuo Ou
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jun Zhou
- Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Fudi Wang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China
| | - Wei Liu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China
| | - Xiaoyi Yan
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
| | - Xin Liang
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,Max-Planck Partner Group, School of Life Sciences, Tsinghua University, Beijing, Tianjing 300073, China
| | - Tianhua Zhou
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Yuhangtang Road, Hangzhou, Zhejiang, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang, Hangzhou 310058, China
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17
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Lu Y, Xie S, Zhang W, Zhang C, Gao C, Sun Q, Cai Y, Xu Z, Xiao M, Xu Y, Huang X, Wu X, Liu W, Wang F, Kang Y, Zhou T. Twa1/Gid8 is a β-catenin nuclear retention factor in Wnt signaling and colorectal tumorigenesis. Cell Res 2017; 27:1422-1440. [PMID: 28829046 PMCID: PMC5717399 DOI: 10.1038/cr.2017.107] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/25/2016] [Accepted: 07/04/2017] [Indexed: 12/26/2022] Open
Abstract
Hyperactivation of Wnt/β-catenin signaling is one of the major causes of human colorectal cancer (CRC). A hallmark of Wnt signaling is the nuclear accumulation of β-catenin. Although β-catenin nuclear import and export have been widely investigated, the underlying mechanism of β-catenin's nuclear retention remains largely unknown. Here, we report that Twa1/Gid8 is a key nuclear retention factor for β-catenin during Wnt signaling and colorectal carcinogenesis. In the absence of Wnt, Twa1 exists together with β-catenin in the Axin complex and undergoes ubiquitination and degradation. Upon Wnt signaling, Twa1 translocates into the nucleus, where it binds and retains β-catenin. Depletion of Twa1 attenuates Wnt-stimulated gene expression, dorsal development of zebrafish embryos and xenograft tumor growth of CRC cells. Moreover, nuclear Twa1 is significantly upregulated in human CRC tissues, correlating with the nuclear accumulation of β-catenin and poor prognosis. Thus, our results identify Twa1 as a previously undescribed regulator of the Wnt pathway for promoting colorectal tumorigenesis by facilitating β-catenin nuclear retention.
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Affiliation(s)
- Yi Lu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
| | - Shanshan Xie
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Wen Zhang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Cheng Zhang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Cheng Gao
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Qiang Sun
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Yuqi Cai
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Current address: Division of Pulmonary Biology, Cincinnati Children's Hospital, Cincinnati, OH 45229, USA
| | - Zhangqi Xu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Min Xiao
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Yanjun Xu
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, China
| | - Xiao Huang
- Institute of Cellular and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Ximei Wu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Wei Liu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
| | - Fudi Wang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, NJ 08540, USA
| | - Tianhua Zhou
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
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18
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A centrosomal protein FOR20 regulates microtubule assembly dynamics and plays a role in cell migration. Biochem J 2017; 474:2841-2859. [DOI: 10.1042/bcj20170303] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/03/2017] [Accepted: 07/10/2017] [Indexed: 11/17/2022]
Abstract
Here, we report that a centrosomal protein FOR20 [FOP (FGFR1 (fibroblast growth factor receptor 1) oncogene protein)-like protein of molecular mass of 20 kDa; also named as C16orf63, FLJ31153 or PHSECRG2] can regulate the assembly and stability of microtubules. Both FOR20 IgG antibody and GST (glutathione S-transferase)-tagged FOR20 could precipitate tubulin from the HeLa cell extract, indicating a possible interaction between FOR20 and tubulin. FOR20 was also detected in goat brain tissue extract and it cycled with microtubule-associated proteins. Furthermore, FOR20 bound to purified tubulin and inhibited the assembly of tubulin in vitro. The overexpression of FOR20 depolymerized interphase microtubules and the depletion of FOR20 prevented nocodazole-induced depolymerization of microtubules in HeLa cells. In addition, the depletion of FOR20 suppressed the dynamics of individual microtubules in live HeLa cells. FOR20-depleted MDA-MB-231 cells displayed zigzag motion and migrated at a slower rate than the control cells, indicating that FOR20 plays a role in directed cell migration. The results suggested that the centrosomal protein FOR20 is a new member of the microtubule-associated protein family and that it regulates the assembly and dynamics of microtubules.
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19
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Kiss KP, Varga G, Mikala G, Balassa K, Bors A, Kovy P, Meggyesi N, Kozma A, Csacsovszki O, Remenyi P, Valyi-Nagy I, Tordai A, Masszi T, Andrikovics H. The adverse effect of FOPNL genomic variant is reversed by bortezomib-based treatment protocols in multiple myeloma. Leuk Lymphoma 2017; 59:710-716. [PMID: 28691553 DOI: 10.1080/10428194.2017.1346250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Fibroblast growth factor receptor 1 oncogene partner N-terminal like gene (FOPNL) rs72773978 polymorphism was identified as an adverse prognostic factor in multiple myeloma (MM). We aimed to investigate the associations of rs72773978 with clinical characteristics and treatment outcome in 373 Hungarian MM patients. In our cohort, FOPNL polymorphism showed differential prognostic effect that depended on the treatment applied. Among patients treated with non-proteasome inhibitor (PI)-based therapy, carriership of the minor allele was significantly associated with adverse overall survival (p=.022). In contrast, the adverse effect was overcome by the application of PI-containing treatment (p=.048). Multivariate analyses revealed the independent adverse effect of rs72773978 on survival in the non-PI-treated group (p=.045), but not in PI treatment (OS: p=.093). We confirmed the adverse prognostic effect of rs72773978 associated with non-PI-based treatment regimens. Our results point to the importance of genotypic prognostic information associated with complex clinical background MM.
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Affiliation(s)
- Katalin Piroska Kiss
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
| | - Gergely Varga
- b 3rd Department of Internal Medicine , Semmelweis University , Budapest , Hungary
| | - Gabor Mikala
- c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Katalin Balassa
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
| | - Andras Bors
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
| | - Petra Kovy
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
| | - Nora Meggyesi
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
| | - Andras Kozma
- c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Otto Csacsovszki
- c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Peter Remenyi
- c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Istvan Valyi-Nagy
- c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Attila Tordai
- d Department of Pathophysiology , Semmelweis University , Budapest , Hungary
| | - Tamas Masszi
- b 3rd Department of Internal Medicine , Semmelweis University , Budapest , Hungary.,c Department of Haematology and Stem Cell Transplantation , St. Istvan and St. Laszlo Hospital , Budapest , Hungary
| | - Hajnalka Andrikovics
- a Laboratory of Molecular Diagnostics , Hungarian National Blood Transfusion Service , Budapest , Hungary
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20
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Stephen J, Vilboux T, Mian L, Kuptanon C, Sinclair CM, Yildirimli D, Maynard DM, Bryant J, Fischer R, Vemulapalli M, Mullikin JC, Huizing M, Gahl WA, Malicdan MCV, Gunay-Aygun M. Mutations in KIAA0753 cause Joubert syndrome associated with growth hormone deficiency. Hum Genet 2017; 136:399-408. [PMID: 28220259 DOI: 10.1007/s00439-017-1765-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/08/2017] [Indexed: 12/28/2022]
Abstract
Joubert syndrome and related disorders (JSRD) are a heterogeneous group of ciliopathies defined based on the mid-hindbrain abnormalities that result in the characteristic "molar tooth sign" on brain imaging. The core clinical findings of JSRD are hypotonia, developmental delay, abnormal eye movements and breathing abnormalities. To date, more than 30 JSRD genes that encode proteins important for structure and/or function of cilia have been identified. Here, we present 2 siblings with Joubert syndrome associated with growth hormone deficiency. Whole exome sequencing of the family identified compound heterozygous mutations in KIAA0753, i.e., a missense mutation (p.Arg257Gly) and an intronic mutation (c.2359-1G>C). The intronic mutation alters normal splicing by activating a cryptic acceptor splice site in exon 16. The novel acceptor site skips nine nucleotides, deleting three amino acids from the protein coding frame. KIAA0753 (OFIP) is a centrosome and pericentriolar satellite protein, previously not known to cause Joubert syndrome. We present comprehensive clinical descriptions of the Joubert syndrome patients as well as the cellular phenotype of defective ciliogenesis in the patients' fibroblasts.
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Affiliation(s)
- Joshi Stephen
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thierry Vilboux
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
- Division of Medical Genomics, Inova Translational Medicine Institute, Falls Church, VA, USA
| | - Luhe Mian
- NIH Undiagnosed Diseases Program, Common Fund, Office of the Director, National Institutes of Health, Bethesda, MD, USA
| | - Chulaluck Kuptanon
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Courtney M Sinclair
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Deniz Yildirimli
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Dawn M Maynard
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Joy Bryant
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roxanne Fischer
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Meghana Vemulapalli
- NIH Intramural Sequencing Center (NISC), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - James C Mullikin
- NIH Intramural Sequencing Center (NISC), National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marjan Huizing
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - William A Gahl
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
- NIH Undiagnosed Diseases Program, Common Fund, Office of the Director, National Institutes of Health, Bethesda, MD, USA
- Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - May Christine V Malicdan
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
- NIH Undiagnosed Diseases Program, Common Fund, Office of the Director, National Institutes of Health, Bethesda, MD, USA.
- Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Meral Gunay-Aygun
- Medical Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
- Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
- Department of Pediatrics and McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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21
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Talati C, Griffiths EA, Wetzler M, Wang ES. Polo-like kinase inhibitors in hematologic malignancies. Crit Rev Oncol Hematol 2016; 98:200-10. [PMID: 26597019 DOI: 10.1016/j.critrevonc.2015.10.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 10/12/2015] [Accepted: 10/27/2015] [Indexed: 11/22/2022] Open
Abstract
Polo-like kinases (Plk) are key regulators of the cell cycle and multiple aspects of mitosis. Two agents that inhibit the Plk signaling pathway have shown promising activity in patients with hematologic malignancies and are currently in phase III trials. Volasertib is a Plk inhibitor under evaluation combined with low-dose cytarabine in older patients with acute myeloid leukemia (AML) ineligible for intensive induction therapy. Rigosertib, a dual inhibitor of the Plk and phosphatidylinositol 3-kinase pathways, is under investigation in patients with myelodysplastic syndrome (MDS) who have failed azacitidine or decitabine treatment. The prognosis for patients with AML, who are ineligible for intensive induction therapy, and for those with MDS refractory/relapsed after a hypomethylating agent, remains poor. Novel approaches, such as Plk inhibitors, are urgently needed for these patients. Here, we provide a comprehensive overview of the current state of development of Plk inhibitors for the treatment of hematologic malignancies.
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Affiliation(s)
- Chetasi Talati
- Leukemia Section, Department of Medicine, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
| | - Elizabeth A Griffiths
- Leukemia Section, Department of Medicine, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
| | - Meir Wetzler
- Leukemia Section, Department of Medicine, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
| | - Eunice S Wang
- Leukemia Section, Department of Medicine, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA.
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22
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Zhang C, Zhang W, Lu Y, Yan X, Yan X, Zhu X, Liu W, Yang Y, Zhou T. NudC regulates actin dynamics and ciliogenesis by stabilizing cofilin 1. Cell Res 2015; 26:239-53. [PMID: 26704451 DOI: 10.1038/cr.2015.152] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 09/22/2015] [Accepted: 10/15/2015] [Indexed: 01/09/2023] Open
Abstract
Emerging data indicate that actin dynamics is associated with ciliogenesis. However, the underlying mechanism remains unclear. Here we find that nuclear distribution gene C (NudC), an Hsp90 co-chaperone, is required for actin organization and dynamics. Depletion of NudC promotes cilia elongation and increases the percentage of ciliated cells. Further results show that NudC binds to and stabilizes cofilin 1, a key regulator of actin dynamics. Knockdown of cofilin 1 also facilitates ciliogenesis. Moreover, depletion of either NudC or cofilin 1 causes similar ciliary defects in zebrafish, including curved body, pericardial edema and defective left-right asymmetry. Ectopic expression of cofilin 1 significantly reverses the phenotypes induced by NudC depletion in both cultured cells and zebrafish. Thus, our data suggest that NudC regulates actin cytoskeleton and ciliogenesis by stabilizing cofilin 1.
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Affiliation(s)
- Cheng Zhang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Wen Zhang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Yi Lu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Xiaoyi Yan
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
| | - Xiumin Yan
- State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai 200031, China
| | - Xueliang Zhu
- State Key Laboratory of Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai 200031, China
| | - Wei Liu
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Yuehong Yang
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
| | - Tianhua Zhou
- Department of Cell Biology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, Zhejiang 310003, China
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23
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Shin SB, Woo SU, Yim H. Differential Cellular Effects of Plk1 Inhibitors Targeting the ATP-binding Domain or Polo-box Domain. J Cell Physiol 2015; 230:3057-67. [PMID: 25975351 DOI: 10.1002/jcp.25042] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 05/08/2015] [Indexed: 01/15/2023]
Abstract
The expression of polo-like kinase 1 (Plk1) correlates with malignancy and is thus recognized as a target for cancer therapy. In addition to the development of ATP-competitive Plk1 inhibitors, the polo-box domain (PBD), a unique functional domain of PLKs, is being targeted to develop Plk1-specific inhibitors. However, the action mechanisms of these two classes of Plk1 inhibitors have not been thoroughly evaluated. Here, we evaluate the differences in cellular effects of ATP-binding domain inhibitors (BI 2536, GSK 461364) and PBD inhibitors (poloxin, thymoquinone) to determine their mechanisms of Plk1 inhibition. Our data show that BI 2536 and GSK461364 increased the population of cells in the G2/M phase compared with controls, while treatment with poloxin and thymoquinone increased cell population in the S phase as well as in G2/M, in a p53-independent manner. The population of cells staining positively for p-Histone H3 and MPM2, mitotic index, was increased by treatment with BI 2536 or GSK461364, but not by treatment with poloxin or thymoquinone. Furthermore, treatment with BI 2536 or GSK461364 resulted in activation of the BubR1 spindle checkpoint kinase, suggesting that treatment with ATP-binding domain inhibitors induces metaphase arrest. However, the administration of poloxin and thymoquinone resulted in an increase in p21(WAF1) and S arrest, indicating that PBD inhibitors also affected interphase before mitotic entry. Taken together, these data suggest that the PDB of Plk1 plays a role in S phase progression through interaction with other proteins, while its ATP-binding domain is important for regulating mitotic progression mediated by its catalytic activity involving consumption of ATP.
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Affiliation(s)
- Sol-Bi Shin
- Department of Pharmacy, College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
| | - Sang-Uk Woo
- Department of Pharmacy, College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
| | - Hyungshin Yim
- Department of Pharmacy, College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do, Korea
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24
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Shan HM, Shi Y, Quan J. Identification of green tea catechins as potent inhibitors of the polo-box domain of polo-like kinase 1. ChemMedChem 2015; 10:158-63. [PMID: 25196850 DOI: 10.1002/cmdc.201402284] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Indexed: 12/21/2022]
Abstract
Polo-like kinase 1 (PLK1) plays crucial functions in multiple stages of mitosis and is considered to be a potential drug target for cancer therapy. The functions of PLK1 are mediated by its N-terminal kinase domain and C-terminal polo-box domain (PBD). Most inhibitors targeting the kinase domain of PLK1 have a selectivity issue because of a high degree of structural conservation within kinase domains of all protein kinases. Here, we combined virtual and experimental screenings to identify green tea catechins as potent inhibitors of the PLK1 PBD. Initially, (-)-epigallocatechin, one of the main components of green tea polyphenols, was found to significantly block the binding of fluorescein-labeled phosphopeptide to the PBD at a concentration of 10 μm. Next, additional catechins were evaluated for their dose-dependent inhibition of the PBD and preliminary structure-activity relationships were derived. Cellular analysis further showed that catechins interfere with the proper subcellular localization of PLK1, lead to cell-cycle arrest in the S and G2M phases, and induce growth inhibition of several human cancer cell types, such as breast adenocarcinoma (MCF7), lung adenocarcinoma (A549), and cervical adenocarcinoma (HeLa). Our data provides new insight into understanding the anticancer activities of green tea catechins.
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Affiliation(s)
- Hong-Mei Shan
- Key Laboratory of Chemical Genomics, School of Chemical Biology & Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen 518055 (China)
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Banerjee S, Zagórska A, Deak M, Campbell D, Prescott A, Alessi D. Interplay between Polo kinase, LKB1-activated NUAK1 kinase, PP1βMYPT1 phosphatase complex and the SCFβTrCP E3 ubiquitin ligase. Biochem J 2014; 461:233-45. [PMID: 24785407 PMCID: PMC4109838 DOI: 10.1042/bj20140408] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/01/2014] [Accepted: 05/02/2014] [Indexed: 12/12/2022]
Abstract
NUAK1 (NUAK family SnF1-like kinase-1) and NUAK2 protein kinases are activated by the LKB1 tumour suppressor and have been implicated in regulating multiple processes such as cell survival, senescence, adhesion and polarity. In the present paper we present evidence that expression of NUAK1 is controlled by CDK (cyclin-dependent kinase), PLK (Polo kinase) and the SCFβTrCP (Skp, Cullin and F-boxβTrCP) E3 ubiquitin ligase complex. Our data indicate that CDK phosphorylates NUAK1 at Ser445, triggering binding to PLK, which subsequently phosphorylates NUAK1 at two conserved non-catalytic serine residues (Ser476 and Ser480). This induces binding of NUAK1 to βTrCP, the substrate-recognition subunit of the SCFβTrCP E3 ligase, resulting in NUAK1 becoming ubiquitylated and degraded. We also show that NUAK1 and PLK1 are reciprocally controlled in the cell cycle. In G2-M-phase, when PLK1 is most active, NUAK1 levels are low and vice versa in S-phase, when PLK1 expression is low, NUAK1 is more highly expressed. Moreover, NUAK1 inhibitors (WZ4003 or HTH-01-015) suppress proliferation by reducing the population of cells in S-phase and mitosis, an effect that can be rescued by overexpression of a NUAK1 mutant in which Ser476 and Ser480 are mutated to alanine. Finally, previous work has suggested that NUAK1 phosphorylates and inhibits PP1βMYPT1 (where PP1 is protein phosphatase 1) and that a major role for the PP1βMYPT1 complex is to inhibit PLK1 by dephosphorylating its T-loop (Thr210). We demonstrate that activation of NUAK1 leads to a striking increase in phosphorylation of PLK1 at Thr210, an effect that is suppressed by NUAK1 inhibitors. Our data link NUAK1 to important cell-cycle signalling components (CDK, PLK and SCFβTrCP) and suggest that NUAK1 plays a role in stimulating S-phase, as well as PLK1 activity via its ability to regulate the PP1βMYPT1 phosphatase.
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Key Words
- amp-activated protein kinase (ampk)
- ampk-related kinase 5 (ark5)
- cell cycle
- degron
- mitosis
- polo kinase (plk) ubiquitylation
- ampk, amp-activated protein kinase
- cdk, cyclin-dependent kinase
- ck1, casein kinase 1
- cul1, cullin 1
- dmem, dulbecco’s modified eagle’s medium
- dtb, double thymidine block
- emi1, early mitotic inhibitor 1
- gst, glutathione transferase
- ha, haemagglutinin
- hek, human embryonic kidney
- hrp, horseradish peroxidase
- ikk, inhibitor of nuclear factor κb kinase
- mef, mouse embryonic fibroblast
- lkb1, liver kinase b1
- nem, n-ethylmaleimide
- nuak, nuak family snf1-like kinase
- pei, polyethylenimine
- pi, propidium iodide
- plk1, polo kinase 1
- pp1, protein phosphatase 1
- scfβtrcp, skp, cullin and f-boxβtrcp
- skp1, s-phase kinase-associated protein 1
- wee1, wee1 g2 checkpoint kinase
- wt, wild-type
- xic, extracted ion chromatogram analysis
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Affiliation(s)
- Sourav Banerjee
- *MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - Anna Zagórska
- †Molecular Neurobiology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, U.S.A
| | - Maria Deak
- *MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - David G. Campbell
- *MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - Alan R. Prescott
- ‡Division of Cell Signalling and Immunology, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
| | - Dario R. Alessi
- *MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, U.K
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26
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Plk1-targeted therapies in TP53- or RAS-mutated cancer. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2014; 761:31-39. [PMID: 24630986 DOI: 10.1016/j.mrrev.2014.02.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/27/2014] [Accepted: 02/27/2014] [Indexed: 11/23/2022]
Abstract
Despite advances in treatment, prognosis for many types of carcinoma remains poor. Polo-like kinase 1 (Plk1) has been explored as a target for the development of anticancer drugs. As a mitotic master Ser/Thr kinase, Plk1 is involved in centrosomal maturation, microtubule nucleation, chromosomal segregation, and cytokinesis. Additional functions in interphase and in response to DNA damage have been revealed. The multiple locations of Plk1 correspond to distinct functions, mediated by phosphorylation of multiple substrates. Since it is highly expressed in several carcinomas, and expression of Plk1 is inversely correlated with the survival rate of patients in non-small cell lung, head and neck, and esophageal cancer, Plk1 is recognized as a valid prognostic marker. Connections between Plk1 and p53 or KRAS in carcinoma provide a rationale and several possible routes to the development of therapies. Tumors with both p53-deficiency and high Plk1 expression may be particularly sensitive to Plk1 inhibitors, although some controversial data exist. In KRAS-mutant cancers, on the other hand, Plk1 may be essential for tumor cell survival, but detailed studies as to whether Plk1 inhibitors are more effective in KRAS-mutant cancers must be performed in order to determine whether this is the case. Here, we present evidence for Plk1 as a prognostic marker and potentially effective target for the treatment of patients with carcinoma, to demonstrate the value of Plk1 as a target for the development of cancer treatment, especially for patients with solid tumors. In addition, the effects of Plk1 inhibition in p53- or KRAS-mutated cancer are discussed with respect to clinical implications. Structural specifics of Plk1 are presented, as well as current strategies for discovering new Plk1 inhibitors by targeting the conserved ATP binding site or polo-box domain of Plk1, in order to develop Plk1-specific anticancer drugs.
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27
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Abstract
FOR20, a conserved centrosomal protein, is essential for Plk1 to localize to the centrosome during the S phase and regulate DNA replication. The absence of either Plk1 or FOR20 can stall the cell cycle by a previously unknown intra-S phase centrosomal checkpoint.
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Affiliation(s)
- Ranadip Mandal
- Department of Gynecology and Obstetrics, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Klaus Strebhardt
- Department of Gynecology and Obstetrics, Goethe University, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
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