101
|
Maros ME, Schnaidt S, Balla P, Kelemen Z, Sapi Z, Szendroi M, Laszlo T, Forsyth R, Picci P, Krenacs T. In situ cell cycle analysis in giant cell tumor of bone reveals patients with elevated risk of reduced progression-free survival. Bone 2019; 127:188-198. [PMID: 31233932 DOI: 10.1016/j.bone.2019.06.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/23/2019] [Accepted: 06/21/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Giant cell tumor of bone (GCTB) is a frequently recurring locally aggressive osteolytic lesion, where pathological osteoclastogenesis and bone destruction are driven by neoplastic stromal cells. Here, we studied if cell cycle fractions within the mononuclear cell compartment of GCTB can predict its progression-free survival (PFS). METHODS 154 cases (100 primaries and 54 recurrent) from 139 patients of 40 progression events, was studied using tissue microarrays. Ploidy and in situ cell cycle progression related proteins including Ki67 and those linked with replication licensing (mcm2), G1-phase (cyclin D1, Cdk4), and S-G2-M-phase (cyclin A; Cdk2) fractions; cell cycle control (p21waf1) and repression (geminin), were tested. The Prentice-Williams-Peterson (PWP) gap-time models with the Akaike information criterion (AIC) were used for PFS analysis. RESULTS Cluster analysis showed good correlation between functionally related marker positive cell fractions indicating no major cell cycle arrested cell populations in GCTB. Increasing hazard of progression was statistically associated with the elevated post-G1/S-phase cell fractions. Univariate analysis revealed significant negative association of poly-/aneuploidy (p < 0.0001), and elevated cyclin A (p < 0.001), geminin (p = 0.015), mcm2 (p = 0.016), cyclin D1 (p = 0.022) and Ki67 (B56: p = 0.0543; and Mib1: p = 0.0564 -strong trend) positive cell fractions with PFS. The highest-ranked multivariate interaction model (AIC = 269.5) also included ploidy (HR 5.68, 95%CI: 2.62-12.31, p < 0.0001), mcm2 (p = 0.609), cyclin D1 (HR 1.89, 95%CI: 0.88-4.09, p = 0.105) and cyclin A (p < 0.0001). The first and second best prognostic models without interaction (AIC = 271.6) and the sensitivity analysis (AIC = 265.7) further confirmed the prognostic relevance of combining these markers. CONCLUSION Ploidy and elevated replication licensing (mcm2), G1-phase (cyclin D1) and post-G1 phase (cyclin A) marker positive cell fractions, indicating enhanced cell cycle progression, can assist in identifying GCTB patients with increased risk for a reduced PFS.
Collapse
Affiliation(s)
- Mate E Maros
- 1(st) Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary; Department of Neuroradiology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Sven Schnaidt
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Peter Balla
- 1(st) Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Zoltan Kelemen
- 1(st) Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Zoltan Sapi
- 1(st) Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Miklos Szendroi
- Department of Orthopedics, Semmelweis University, Budapest, Hungary
| | - Tamas Laszlo
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Semmelweis University, Budapest, Hungary
| | - Ramses Forsyth
- Department of Anatomic Pathology, University of Brussels, Belgium
| | - Piero Picci
- Laboratory of Experimental Oncology, Institute of Orthopedics Rizzoli, Bologna, Italy
| | - Tibor Krenacs
- 1(st) Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.
| |
Collapse
|
102
|
Hou S, Sun Y, Wu Y, Cheng T, Liu C. Bmsage is involved in the determination of cell number in the silk gland of Bombyx mori. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2019; 113:103205. [PMID: 31421207 DOI: 10.1016/j.ibmb.2019.103205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/10/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
The number of cells in tissues is under strict genetic control, and research on the determination of cell number is of great importance to understand the growth and development of organs. Bmsage, a bHLH transcription factor, is involved in the development of the silk gland during the embryonic stage in Bombyx mori. However, the mechanism by which it influences silk gland development is unclear. In the present study, we determined via immunofluorescence staining during the embryonic stage of Bombyx mori that Bmsage is expressed in silk gland cells from the beginning of development of the silk gland until its complete formation. By comparing different silkworm strains, we found that Bmsage expression is positively correlated with the number of silk gland cells. Bmsage knockdown by RNAi resulted in shorter silk glands and lower cell numbers, especially in the posterior silk gland. The silk gland lumen also shriveled, and the silk protein content was significantly lower than that in the control. Further investigation revealed that all cyclins decreased after knock down of Bmsage, and cyclin B and cyclin 3 were significantly down-regulated. Bmsage may be involved in the regulation of the cyclin pathway to control silk gland development. Taken together, it can be concluded from our results that Bmsage is involved in the determination of cell number in silk glands. Our results help clarify the process of cell number determination in silk gland and identify a potential target for silkworm breeding.
Collapse
Affiliation(s)
- Sihan Hou
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China
| | - Yan Sun
- Biotechnology College, Southwest University, Chongqing, 400716, China
| | - Yangchun Wu
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212018, China; The Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu, 212018, China
| | - Tingcai Cheng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China
| | - Chun Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, 400716, China.
| |
Collapse
|
103
|
Liu Z, Chen T, Bai D, Tian W, Chen Y. Smad7 Regulates Dental Epithelial Proliferation during Tooth Development. J Dent Res 2019; 98:1376-1385. [PMID: 31499015 DOI: 10.1177/0022034519872487] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Tooth morphogenesis involves dynamic changes in shape and size as it proceeds through the bud, cap, and bell stages. This process requires exact regulation of cell proliferation and differentiation. Smad7, a general antagonist against transforming growth factor-β (TGF-β) signaling, is necessary for maintaining homeostasis and proper functionality in many organs. While TGF-β signaling is widely involved in tooth morphogenesis, the precise role of Smad7 in tooth development remains unknown. In this study, we showed that Smad7 is expressed in the developing mouse molars with a high level in the dental epithelium but a moderate to weak level in the dental mesenchyme. Smad7 deficiency led to a profound decrease in tooth size primarily due to a severely compromised cell proliferation capability in the dental epithelium. Consistent with the tooth shrinkage phenotype, RNA sequencing (RNA-seq) analysis revealed that Smad7 ablation downregulated genes referred to epithelial cell proliferation and cell cycle G1/S phase transition, whereas the upregulated genes were involved in responding to TGF-β signaling and cell cycle arrest. Among these genes, the expression of Cdkn1a (encoding p21), a negative cell proliferation regulator, was remarkably elevated in parallel with the diminution of Ccnd1 encoding the crucial cell cycle regulator cyclin D1 in the dental epithelium. Meanwhile, the expression level of p-Smad2/3 was ectopically elevated in the developing tooth germ of Smad7 null mice, indicating the hyperactivation of the canonical TGF-β signaling. These effects were reversed by addition of TGF-β signaling inhibitor in cell cultures of Smad7-/- molar tooth germs, with rescued expression of cyclin D1 and cell proliferation rate. In sum, our studies demonstrate that Smad7 functions primarily as a positive regulator of cell proliferation via inhibition of the canonical TGF-β signaling during dental epithelium development and highlight a crucial role for Smad7 in regulating tooth size.
Collapse
Affiliation(s)
- Z Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China.,Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, USA.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - T Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China.,Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, USA.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - D Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - W Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Y Chen
- Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, USA
| |
Collapse
|
104
|
McCann JL, Klein MM, Leland EM, Law EK, Brown WL, Salamango DJ, Harris RS. The DNA deaminase APOBEC3B interacts with the cell-cycle protein CDK4 and disrupts CDK4-mediated nuclear import of Cyclin D1. J Biol Chem 2019; 294:12099-12111. [PMID: 31217276 PMCID: PMC6690700 DOI: 10.1074/jbc.ra119.008443] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/27/2019] [Indexed: 12/13/2022] Open
Abstract
Apolipoprotein B mRNA editing enzyme catalytic subunit-like protein 3B (APOBEC3B or A3B), as other APOBEC3 members, is a single-stranded (ss)DNA cytosine deaminase with antiviral activity. A3B is also overexpressed in multiple tumor types, such as carcinomas of the bladder, cervix, lung, head/neck, and breast. A3B generates both dispersed and clustered C-to-T and C-to-G mutations in intrinsically preferred trinucleotide motifs (TCA/TCG/TCT). A3B-catalyzed mutations are likely to promote tumor evolution and cancer progression and, as such, are associated with poor clinical outcomes. However, little is known about cellular processes that regulate A3B. Here, we used a proteomics approach involving affinity purification coupled to MS with human 293T cells to identify cellular proteins that interact with A3B. This approach revealed a specific interaction with cyclin-dependent kinase 4 (CDK4). We validated and mapped this interaction by co-immunoprecipitation experiments. Functional studies and immunofluorescence microscopy experiments in multiple cell lines revealed that A3B is not a substrate for CDK4-Cyclin D1 phosphorylation nor is its deaminase activity modulated. Instead, we found that A3B is capable of disrupting the CDK4-dependent nuclear import of Cyclin D1. We propose that this interaction may favor a more potent antiviral response and simultaneously facilitate cancer mutagenesis.
Collapse
Affiliation(s)
- Jennifer L McCann
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455; Institute for Molecular Virology, University of Minnesota, Minneapolis, Minnesota 55455; Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota 55455
| | - Madeline M Klein
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455
| | - Evelyn M Leland
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455
| | - Emily K Law
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455; Institute for Molecular Virology, University of Minnesota, Minneapolis, Minnesota 55455; Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota 55455; Howard Hughes Medical Institute, University of Minnesota, Minneapolis, Minnesota 55455
| | - William L Brown
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455; Institute for Molecular Virology, University of Minnesota, Minneapolis, Minnesota 55455; Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota 55455
| | - Daniel J Salamango
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455; Institute for Molecular Virology, University of Minnesota, Minneapolis, Minnesota 55455; Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota 55455.
| | - Reuben S Harris
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, Minnesota 55455; Institute for Molecular Virology, University of Minnesota, Minneapolis, Minnesota 55455; Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota 55455; Center for Genome Engineering, University of Minnesota, Minneapolis, Minnesota 55455; Howard Hughes Medical Institute, University of Minnesota, Minneapolis, Minnesota 55455.
| |
Collapse
|
105
|
Duan Y, Guo Q, Zhang T, Meng Y, Sun D, Luo G, Liu Y. Cyclin-dependent kinase-mediated phosphorylation of the exocyst subunit Exo84 in late G 1 phase suppresses exocytic secretion and cell growth in yeast. J Biol Chem 2019; 294:11323-11332. [PMID: 31171719 DOI: 10.1074/jbc.ra119.008591] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/10/2019] [Indexed: 12/22/2022] Open
Abstract
In eukaryotic cells, the growth rate is strictly regulated for proper progression of the cell cycle. In the budding yeast Saccharomyces cerevisiae, it was previously shown that cell growth dramatically slows down when the cells start budding at the G1/S transition. However, the molecular mechanism for this G1/S-associated growth arrest is unclear. In this study, using exocytic secretion, cyclin-dependent kinase (CDK) assay, immunoprecipitation, and microscopy, we demonstrate that the exocyst subunit Exo84, which is known to be phosphorylated in mitosis, can also be phosphorylated directly by Cdk1 in the late G1 phase. Of note, we found that the Cdk1-mediated Exo84 phosphorylation impairs exocytic secretion in the late G1 phase. Using conditional cdc mutants and phosphodeficient and phosphomimetic exo84 mutants, we further observed that Cdk1-phosphoryated Exo84 inhibits the exocyst complex assembly, exocytic secretion, and cell growth, which may be important for proper execution of the G1/S-phase transition before commitment to a complete cell cycle. Our results suggest that the direct Cdk1-mediated regulation of the exocyst complex critically contributes to the coordination of cell growth and cell cycle progression.
Collapse
Affiliation(s)
- Yuran Duan
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Qingguo Guo
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Tianrui Zhang
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Yuan Meng
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| | - Dong Sun
- Institute of Translational Medicine, China Medical University, Shenyang 110122, China
| | - Guangzuo Luo
- Institute of Translational Medicine, China Medical University, Shenyang 110122, China
| | - Ying Liu
- Department of Biochemistry and Molecular Biology, China Medical University, Shenyang 110122, China
| |
Collapse
|
106
|
Makhdoumi P, Hossini H, Ashraf GM, Limoee M. Molecular Mechanism of Aniline Induced Spleen Toxicity and Neuron Toxicity in Experimental Rat Exposure: A Review. Curr Neuropharmacol 2019; 17:201-213. [PMID: 30081786 PMCID: PMC6425079 DOI: 10.2174/1570159x16666180803164238] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 01/17/2018] [Accepted: 08/02/2018] [Indexed: 01/04/2023] Open
Abstract
Aniline exposure leads to neuron and spleen toxicity specifically and makes diverse neurological effects and sar-coma that is defined by splenomegaly, hyperplasia, and fibrosis and tumors formation at the end. However, the molecular mechanism(s) of aniline-induced spleen toxicity is not understood well, previous studies have represented that aniline expo-sure results in iron overload and initiation of oxidative/nitrosative disorder stress and oxidative damage to proteins, lipids and DNA subsequently, in the spleen. Elevated expression of cyclins, cyclin-dependent kinases (CDKs) and phosphorylation of pRB protein along with increases in A, B and CDK1 as a cell cycle regulatory proteins cyclins, and reduce in CDK inhibitors (p21 and p27) could be critical in cell cycle regulation, which contributes to tumorigenic response after aniline exposure. Aniline-induced splenic toxicity is corre-lated to oxidative DNA damage and initiation of DNA glycosylases expression (OGG1, NEIL1/2, NTH1, APE1 and PNK) for removal of oxidative DNA lesions in rat. Oxidative stress causes transcriptional up-regulation of fibrogenic/inflammatory factors (cytokines, IL-1, IL-6 and TNF-α) via induction of nuclear factor-kappa B, AP-1 and redox-sensitive transcription factors, in aniline treated-rats. The upstream signalling events as phosphorylation of IκB kinases (IKKα and IKKβ) and mito-gen-activated protein kinases (MAPKs) could potentially be the causes of activation of NF-κB and AP-1. All of these events could initiate a fibrogenic and/or tumorigenic response in the spleen. The spleen toxicity of aniline is studied more and the different mechanisms are suggested. This review summarizes those events following aniline exposure that induce spleen tox-icity and neurotoxicity.
Collapse
Affiliation(s)
- Pouran Makhdoumi
- Research Center for Environmental Determinants of Health (RCEDH), School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hooshyar Hossini
- Research Center for Environmental Determinants of Health (RCEDH), School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Environmental Health Engineering, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ghulam Md Ashraf
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mojtaba Limoee
- Research Center for Environmental Determinants of Health (RCEDH), School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Environmental Health Engineering, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| |
Collapse
|
107
|
Daldello EM, Luong XG, Yang CR, Kuhn J, Conti M. Cyclin B2 is required for progression through meiosis in mouse oocytes. Development 2019; 146:dev172734. [PMID: 30952665 PMCID: PMC6503990 DOI: 10.1242/dev.172734] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 04/01/2019] [Indexed: 12/20/2022]
Abstract
Cyclins associate with cyclin-dependent serine/threonine kinase 1 (CDK1) to generate the M phase-promoting factor (MPF) activity essential for progression through mitosis and meiosis. Although cyclin B1 (CCNB1) is required for embryo development, previous studies concluded that CCNB2 is dispensable for cell cycle progression. Given previous findings of high Ccnb2 mRNA translation rates in prophase-arrested oocytes, we re-evaluated the role of this cyclin during meiosis. Ccnb2-/- oocytes underwent delayed germinal vesicle breakdown and showed defects during the metaphase-to-anaphase transition. This defective maturation was associated with compromised Ccnb1 and Moloney sarcoma oncogene (Mos) mRNA translation, delayed spindle assembly and increased errors in chromosome segregation. Given these defects, a significant percentage of oocytes failed to complete meiosis I because the spindle assembly checkpoint remained active and anaphase-promoting complex/cyclosome function was inhibited. In vivo, CCNB2 depletion caused ovulation of immature oocytes, premature ovarian failure, and compromised female fecundity. These findings demonstrate that CCNB2 is required to assemble sufficient pre-MPF for timely meiosis re-entry and progression. Although endogenous cyclins cannot compensate, overexpression of CCNB1/2 rescues the meiotic phenotypes, indicating similar molecular properties but divergent modes of regulation of these cyclins.
Collapse
Affiliation(s)
- Enrico Maria Daldello
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Xuan G Luong
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Cai-Rong Yang
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| | - Jonathan Kuhn
- Cell and Tissue Biology Department, University of California, San Francisco, CA 94143, USA
| | - Marco Conti
- Center for Reproductive Sciences, University of California, San Francisco, CA 94143, USA
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, CA 94143, USA
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| |
Collapse
|
108
|
Łakomiak A, Brzuzan P, Jakimiuk E, Florczyk M, Woźny M. Molecular characterization of the cyclin-dependent protein kinase 6 in whitefish (Coregonus lavaretus) and its potential interplay with miR-34a. Gene 2019; 699:115-124. [PMID: 30858134 DOI: 10.1016/j.gene.2019.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
Abstract
Cyclin-dependent protein kinase 6 (CDK6) plays a pivotal role in the regulation of the cell cycle and cell proliferation in mammals, and disruption of its expression by various microRNAs has been implicated in the pathogenesis of multiple human cancers. In mammals, miR-34a acts as a downstream effector of p53, and thus indirectly targets Cdk6, abrogating its effects. However, no studies have been done so far to examine the mechanistic involvement of miR-34a in the silencing of cdk6 in fish. In the present study, we found that the cDNA sequence of whitefish cdk6 has a 3'UTR region that contains a binding site for miR-34a. Using a luciferase reporter assay, we demonstrated that whitefish cdk6 is a direct target of miR-34a in vitro. In order to confirm this relationship in vivo, we measured the miR-34a and cdk6 mRNA expression patterns in the liver of whitefish after short-term (8, 24, and 48 h) and long-term (14 and 28 days) exposure to microcystin-LR (MC-LR), a known hepatotoxin and tumor promoter. In contrast to the in vitro findings, we noticed an up-regulation of miR-34a and cdk6 expression after long-term MC-LR treatment. While these results indicate that both, miR-34a and cdk6 are responsive to MC-LR treatment, they do not support the presence of a miR-34a:cdk6 mRNA regulatory pair in the MC-LR-challanged whitefish liver in vivo. On the other hand, our findings suggests that cell regulatory elements, partnering with either miR-34a or cdk6, are worthy of further screening to better understand the molecular mechanisms that underlie the physiological response of fish challenged with hepatotoxic environmental pollutants like microcystins.
Collapse
Affiliation(s)
- Alicja Łakomiak
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45G, 10-709 Olsztyn, Poland.
| | - Paweł Brzuzan
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45G, 10-709 Olsztyn, Poland
| | - Ewa Jakimiuk
- Division of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, ul. Oczapowskiego 13, 10-950 Olsztyn, Poland
| | - Maciej Florczyk
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45G, 10-709 Olsztyn, Poland
| | - Maciej Woźny
- Department of Environmental Biotechnology, Faculty of Environmental Sciences, University of Warmia and Mazury in Olsztyn, ul. Słoneczna 45G, 10-709 Olsztyn, Poland
| |
Collapse
|
109
|
Jiménez–Charris E, Lopes DS, Gimenes SNC, Teixeira SC, Montealegre–Sánchez L, Solano–Redondo L, Fierro–Pérez L, Rodrigues Ávila VDM. Antitumor potential of Pllans–II, an acidic Asp49–PLA2 from Porthidium lansbergii lansbergii snake venom on human cervical carcinoma HeLa cells. Int J Biol Macromol 2019; 122:1053-1061. [DOI: 10.1016/j.ijbiomac.2018.09.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/05/2018] [Accepted: 09/10/2018] [Indexed: 10/28/2022]
|
110
|
Cao L, Li WJ, Yang JH, Wang Y, Hua ZJ, Liu D, Chen YQ, Zhang HM, Zhang R, Zhao JS, Cheng SJ, Zhang Q. Inflammatory cytokine-induced expression of MASTL is involved in hepatocarcinogenesis by regulating cell cycle progression. Oncol Lett 2019; 17:3163-3172. [PMID: 30867746 PMCID: PMC6396276 DOI: 10.3892/ol.2019.9983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 12/18/2018] [Indexed: 02/07/2023] Open
Abstract
Microtubule associated serine/threonine kinase-like (MASTL) is the functional mammalian ortholog of Greatwall kinase (Gwl), which was originally discovered in Drosophila. Gwl is an essential kinase for accurate chromosome condensation and mitotic progression, and inhibits protein phosphatase 2A (PP2A), which subsequently dephosphorylates the substrates of cyclin B1-cyclin-dependent kinase 1, leading to mitotic exit. Previous studies have indicated that MASTL has a critical function in the regulation of mitosis in HeLa and U2OS cell lines, though there is currently limited evidence for the involvement of MASTL in hepatocarcinogenesis. The results of the present study revealed that MASTL was inducible by the proinflammatory cytokines interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α), which promoted the proliferation and mitotic entry of human liver cancer cells. It was also determined that MASTL was significantly overexpressed in cancerous liver tissues compared with non-tumor liver tissues. Mechanistically, stimulation by IL-6 and TNF-α induced the trimethylation of histone H3 lysine 4 (H3K4Me3) at the MASTL promoter to facilitate chromatin accessibility. Additionally, H3K4Me3 was associated with the activation of nuclear factor-κB, which subsequently upregulated MASTL expression. These findings suggested that MASTL may have pivotal functions in the development of hepatocarcinoma, and that it may be a potential target for treatment.
Collapse
Affiliation(s)
- Liye Cao
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Wen-Juan Li
- College of Medicine, Hebei University, Baoding, Hebei 071000, P.R. China
| | - Ji-Hong Yang
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Yu Wang
- College of Medicine, Hebei University, Baoding, Hebei 071000, P.R. China
| | - Zhi-Juan Hua
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Dan Liu
- Department of Ultrasound Imaging, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, Guangdong 519000, P.R. China
| | - Ya-Qing Chen
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Hao-Miao Zhang
- College of Medicine, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Rui Zhang
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Ji-Sen Zhao
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Shu-Jie Cheng
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| | - Quan Zhang
- Department of Surgery, The Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
| |
Collapse
|
111
|
Zhao J, Yang M, Wu X, Yang Z, Jia P, Sun Y, Li G, Xie L, Liu B, Liu H. Effects of paclitaxel intervention on pulmonary vascular remodeling in rats with pulmonary hypertension. Exp Ther Med 2019; 17:1163-1170. [PMID: 30679989 PMCID: PMC6327549 DOI: 10.3892/etm.2018.7045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 03/23/2018] [Indexed: 12/18/2022] Open
Abstract
The aim of the present study was to investigate the effects of paclitaxel (PTX), at a non-cytotoxic concentration, on pulmonary vascular remodeling (PVR) in rats with pulmonary hypertension (PAH), and to explore the mechanisms underlying the PTX-mediated reversal of PVR in PAH. A total of 36 rats were divided into control group (n=12), model group (n=12) receiving a subcutaneous injection of monocrotaline (60 mg/kg) in the back on day 7 following left pneumonectomy and PTX group (n=12) with PTX (2 mg/kg) injection via the caudal vein 3 weeks following establishing the model. The degree of PVR among all groups, as well as the expression levels of Ki67, p27Kip1 and cyclin B1, were compared. The mean pulmonary artery pressure, right ventricular hypertrophy index [right ventricle/(left ventricle + septum) ratio] and the thickness of the pulmonary arterial tunica media in the model group were 58.34±2.01 mmHg, 0.64±0.046 and 65.3±3.3%, respectively, which were significantly higher when compared with 23.30±1.14 mmHg, 0.32±0.028 and 16.2±1.3% in the control group, respectively (P<0.01). The mean pulmonary artery pressure, right ventricular hypertrophy index and thickness of the pulmonary arterial tunica media in the PTX group were 42.35±1.53 mmHg, 0.44±0.029 and 40.5±2.6%, respectively, which were significantly lower when compared with the model group (P<0.01). Compared with the control group, the expression levels of Ki67 and cyclin B1 in the model group were significantly increased (P<0.01), while p27Kip1 expression was significantly reduced (P<0.01). Following PTX intervention, the expression levels of Ki67 and cyclin B1 were significantly reduced when compared with the model group (P<0.01), while p27Kip1 expression was significantly increased (P<0.01). The results of the present study suggest that PTX, administered at a non-cytotoxic concentration, may reduce PAH in rats, and prevent the effects of PVR in PAH. These effects of PTX may be associated with increased expression of p27Kip1 and decreased expression of cyclin B1.
Collapse
Affiliation(s)
- Jian Zhao
- Department of Pediatric Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Meifang Yang
- School of Nursing, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xindan Wu
- Department of Pediatrics, Chengdu Women and Children's Central Hospital, Chengdu, Sichuan 610091, P.R. China
| | - Zhangya Yang
- Department of Pediatrics, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, P.R. China
| | - Peng Jia
- Department of Pediatric Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Yuqin Sun
- Department of Pediatric Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Gang Li
- Department of Pediatric Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Liang Xie
- Department of Pediatric Cardiology, West China Second University Hospital, Chengdu, Sichuan 610041, P.R. China
| | - Bin Liu
- Department of Pediatric Cardiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Hanmin Liu
- Department of Pediatric Cardiology, West China Second University Hospital, Chengdu, Sichuan 610041, P.R. China
| |
Collapse
|
112
|
Xu XY, Tsang SW, Guan YF, Liu KL, Pan WH, Lam CS, Lee KM, Xia YX, Xie WJ, Wong WY, Lee MML, Tai WCS, Zhang HJ. In Vitro and in Vivo Antitumor Effects of Plant-Derived Miliusanes and Their Induction of Cellular Senescence. J Med Chem 2019; 62:1541-1561. [DOI: 10.1021/acs.jmedchem.8b01742] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xin-Ya Xu
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Siu Wai Tsang
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Yi-Fu Guan
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Kang-Lun Liu
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Wen-Hui Pan
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Chu Shing Lam
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Kwan Ming Lee
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Yi-Xuan Xia
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Wen-Jian Xie
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| | - Wing Yan Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, People’s Republic of China
| | - Magnolia Muk Lan Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, People’s Republic of China
| | - William Chi Shing Tai
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, People’s Republic of China
| | - Hong-Jie Zhang
- Teaching and Research Division, School of Chinese Medicine, Hong Kong Baptist University, 7 Baptist University Road, Kowloon Tong, Hong Kong SAR, People’s Republic of China
| |
Collapse
|
113
|
Hemming ML, Lawlor MA, Andersen JL, Hagan T, Chipashvili O, Scott TG, Raut CP, Sicinska E, Armstrong SA, Demetri GD, Bradner JE, Ganz PA, Tomlinson G, Olopade OI, Couch FJ, Wang X, Lindor NM, Pankratz VS, Radice P, Manoukian S, Peissel B, Zaffaroni D, Barile M, Viel A, Allavena A, Dall'Olio V, Peterlongo P, Szabo CI, Zikan M, Claes K, Poppe B, Foretova L, Mai PL, Greene MH, Rennert G, Lejbkowicz F, Glendon G, Ozcelik H, Andrulis IL, Thomassen M, Gerdes AM, Sunde L, Cruger D, Birk Jensen U, Caligo M, Friedman E, Kaufman B, Laitman Y, Milgrom R, Dubrovsky M, Cohen S, Borg A, Jernström H, Lindblom A, Rantala J, Stenmark-Askmalm M, Melin B, Nathanson K, Domchek S, Jakubowska A, Lubinski J, Huzarski T, Osorio A, Lasa A, Durán M, Tejada MI, Godino J, Benitez J, Hamann U, Kriege M, Hoogerbrugge N, van der Luijt RB, van Asperen CJ, Devilee P, Meijers-Heijboer EJ, Blok MJ, Aalfs CM, Hogervorst F, Rookus M, Cook M, Oliver C, Frost D, Conroy D, Evans DG, Lalloo F, Pichert G, Davidson R, Cole T, Cook J, Paterson J, Hodgson S, Morrison PJ, Porteous ME, Walker L, Kennedy MJ, Dorkins H, Peock S, Godwin AK, Stoppa-Lyonnet D, de Pauw A, Mazoyer S, Bonadona V, Lasset C, Dreyfus H, Leroux D, Hardouin A, Berthet P, Faivre L, Loustalot C, Noguchi T, Sobol H, Rouleau E, Nogues C, Frénay M, Vénat-Bouvet L, Hopper JL, Daly MB, Terry MB, John EM, Buys SS, Yassin Y, Miron A, Goldgar D, Singer CF, Dressler AC, Gschwantler-Kaulich D, Pfeiler G, Hansen TVO, Jønson L, Agnarsson BA, Kirchhoff T, Offit K, Devlin V, Dutra-Clarke A, Piedmonte M, Rodriguez GC, Wakeley K, Boggess JF, Basil J, Schwartz PE, Blank SV, Toland AE, Montagna M, Casella C, Imyanitov E, Tihomirova L, Blanco I, Lazaro C, Ramus SJ, Sucheston L, Karlan BY, Gross J, Schmutzler R, Wappenschmidt B, Engel C, Meindl A, Lochmann M, Arnold N, Heidemann S, Varon-Mateeva R, Niederacher D, Sutter C, Deissler H, Gadzicki D, Preisler-Adams S, Kast K, Schönbuchner I, Caldes T, de la Hoya M, Aittomäki K, Nevanlinna H, Simard J, Spurdle AB, Holland H, Chen X, Platte R, Chenevix-Trench G, Easton DF. Enhancer Domains in Gastrointestinal Stromal Tumor Regulate KIT Expression and Are Targetable by BET Bromodomain Inhibition. Cancer Res 2019. [PMID: 18483246 DOI: 10.1158/0008-5472] [Citation(s) in RCA: 680] [Impact Index Per Article: 136.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gastrointestinal stromal tumor (GIST) is a mesenchymal neoplasm characterized by activating mutations in the related receptor tyrosine kinases KIT and PDGFRA. GIST relies on expression of these unamplified receptor tyrosine kinase (RTK) genes through a large enhancer domain, resulting in high expression levels of the oncogene required for tumor growth. Although kinase inhibition is an effective therapy for many patients with GIST, disease progression from kinase-resistant mutations is common and no other effective classes of systemic therapy exist. In this study, we identify regulatory regions of the KIT enhancer essential for KIT gene expression and GIST cell viability. Given the dependence of GIST upon enhancer-driven expression of RTKs, we hypothesized that the enhancer domains could be therapeutically targeted by a BET bromodomain inhibitor (BBI). Treatment of GIST cells with BBIs led to cell-cycle arrest, apoptosis, and cell death, with unique sensitivity in GIST cells arising from attenuation of the KIT enhancer domain and reduced KIT gene expression. BBI treatment in KIT-dependent GIST cells produced genome-wide changes in the H3K27ac enhancer landscape and gene expression program, which was also seen with direct KIT inhibition using a tyrosine kinase inhibitor (TKI). Combination treatment with BBI and TKI led to superior cytotoxic effects in vitro and in vivo, with BBI preventing tumor growth in TKI-resistant xenografts. Resistance to select BBI in GIST was attributable to drug efflux pumps. These results define a therapeutic vulnerability and clinical strategy for targeting oncogenic kinase dependency in GIST. SIGNIFICANCE: Expression and activity of mutant KIT is essential for driving the majority of GIST neoplasms, which can be therapeutically targeted using BET bromodomain inhibitors.
Collapse
Affiliation(s)
- Matthew L Hemming
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Center for Sarcoma and Bone Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Matthew A Lawlor
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jessica L Andersen
- Center for Sarcoma and Bone Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Timothy Hagan
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Otari Chipashvili
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Thomas G Scott
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Chandrajit P Raut
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Ewa Sicinska
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Scott A Armstrong
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - George D Demetri
- Center for Sarcoma and Bone Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts.,Ludwig Center at Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
114
|
Jalal TK, Khan AYF, Natto HA, Abdull Rasad MSB, Arifin Kaderi M, Mohammad M, Johan MF, Omar MN, Abdul Wahab R. Identification and Quantification of Quercetin, A Major Constituent ofArtocarpus altilisby Targeting Related Genes of Apoptosis and Cell Cycle: In Vitro Cytotoxic Activity Against Human Lung Carcinoma Cell Lines. Nutr Cancer 2019; 71:792-805. [DOI: 10.1080/01635581.2018.1516790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tara K. Jalal
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Al’aina Yuhanis Firus Khan
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Hatim A. Natto
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
- Department of Epidemiology, Faculty of Public Health and Health Informatics, Umma Al-Qura University, Makkah, Saudi Arabia
| | - Mohammad Syaiful Bahari Abdull Rasad
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Mohd. Arifin Kaderi
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Mardhiah Mohammad
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Muhammad Farid Johan
- Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Muhammed Nor Omar
- Department of Biotechnology Sciences, Kulliyyah of Science, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| | - Ridhwan Abdul Wahab
- Department of Biomedical Sciences, Kulliyyah of Allied Health Sciences, International Islamic University Malaysia (IIUM), Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, Kuantan, Pahang, Malaysia
| |
Collapse
|
115
|
Ježek J, Smethurst DGJ, Stieg DC, Kiss ZAC, Hanley SE, Ganesan V, Chang KT, Cooper KF, Strich R. Cyclin C: The Story of a Non-Cycling Cyclin. BIOLOGY 2019; 8:biology8010003. [PMID: 30621145 PMCID: PMC6466611 DOI: 10.3390/biology8010003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 12/14/2022]
Abstract
The class I cyclin family is a well-studied group of structurally conserved proteins that interact with their associated cyclin-dependent kinases (Cdks) to regulate different stages of cell cycle progression depending on their oscillating expression levels. However, the role of class II cyclins, which primarily act as transcription factors and whose expression remains constant throughout the cell cycle, is less well understood. As a classic example of a transcriptional cyclin, cyclin C forms a regulatory sub-complex with its partner kinase Cdk8 and two accessory subunits Med12 and Med13 called the Cdk8-dependent kinase module (CKM). The CKM reversibly associates with the multi-subunit transcriptional coactivator complex, the Mediator, to modulate RNA polymerase II-dependent transcription. Apart from its transcriptional regulatory function, recent research has revealed a novel signaling role for cyclin C at the mitochondria. Upon oxidative stress, cyclin C leaves the nucleus and directly activates the guanosine 5’-triphosphatase (GTPase) Drp1, or Dnm1 in yeast, to induce mitochondrial fragmentation. Importantly, cyclin C-induced mitochondrial fission was found to increase sensitivity of both mammalian and yeast cells to apoptosis. Here, we review and discuss the biology of cyclin C, focusing mainly on its transcriptional and non-transcriptional roles in tumor promotion or suppression.
Collapse
Affiliation(s)
- Jan Ježek
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Daniel G J Smethurst
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - David C Stieg
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Z A C Kiss
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Sara E Hanley
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Vidyaramanan Ganesan
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Kai-Ti Chang
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Katrina F Cooper
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| | - Randy Strich
- Department of Molecular Biology, School of Osteopathic Medicine, Rowan University, Stratford, NJ 08084, USA.
| |
Collapse
|
116
|
Kawaguchi K, Arwansyah MS, Kataoka T, Nagao H. Theoretical study of conformational transition of CDK4 by association of cyclin D3. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1563725] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kazutomo Kawaguchi
- Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan
| | | | - Tatsuki Kataoka
- Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan
| | - Hidemi Nagao
- Institute of Science and Engineering, Kanazawa University, Kanazawa, Japan
| |
Collapse
|
117
|
Ray A, Jena S, Dash B, Sahoo A, Kar B, Patnaik J, Panda PC, Nayak S, Mahapatra N. Hedychium coronarium extract arrests cell cycle progression, induces apoptosis, and impairs migration and invasion in HeLa cervical cancer cells. Cancer Manag Res 2019; 11:483-500. [PMID: 30655700 PMCID: PMC6322495 DOI: 10.2147/cmar.s190004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Hedychium coronarium Koen. (Zingiberaceae) is traditionally used as medicine in countries such as India, China, and Vietnam for treatment of various ailments including cancer. However, in spite of its implied significance in cancer treatment regimes, there are no reports so far involving the anticancerous attributes of H, coronarium ethanol extract (HCEE) on cancer cells and a more comprehensive study on its mechanism is still lacking. Materials and methods The cytotoxicity of HCEE was evaluated by MTT and clonogenic survival assay. Annexin V/propidium iodide (PI), Hoechst 33342 staining, and TUNEL assay were performed to detect apoptosis. Cell cycle analysis was performed using PI staining. JC-1 and 2′,7′-dichlorodihydrofluorescein diacetate assay were used to check the levels of MMP and ROS, respectively. Western blot analysis was carried out to measure the expression levels of proteins. Migration and invasion activity were assessed by wound healing and Transwell membrane assay, respectively. Results Antiproliferative effect of HCEE was investigated in various cancerous and normal cell lines. Among these, HCEE significantly inhibited the survival of HeLa cells without affecting the viability of normal human umbilical vein endothelial cells. Annexin V/PI, Hoechst staining, and TUNEL assay showed HCEE induced apoptosis in HeLa cells in a dose-dependent manner. HCEE promoted cell cycle arrest at G1 phase in HeLa cells by upregulating the levels of p53 and p21 and downregulating the levels of cyclin D1, CDK-4, and CDK-6. Moreover, HCEE treatment upregulated the expression of Bax and downregulated the expression of Bcl-2. Additionally, HCEE activated the caspase cascade by increasing the activities of caspase-9, caspase-8, and caspase-3. The expression levels of Fas ligand and Fas were also upregulated. Further, HCEE inhibited the migratory potential of HeLa cells by downregulating MMP-2 and MMP-9 expression levels. Conclusion Our results indicate H. coronarium exerts antiproliferative and apoptotic effects against HeLa cells, and therefore may be used for treatment against cervical cancer.
Collapse
Affiliation(s)
- Asit Ray
- Regional Medical Research Centre (Indian Council of Medical Research), Chandrasekharpur, Bhubaneswar 751023, Odisha, India.,Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Sudipta Jena
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Biswabhusan Dash
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Ambika Sahoo
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Basudeba Kar
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Jeetendranath Patnaik
- Department of Botany, Sri Krushna Chandra Gajapati College, Paralakhemundi 761200, Odisha, India
| | - Pratap Chandra Panda
- Taxonomy and Conservation Division, Regional Plant Resource Centre, Nayapalli, Bhubaneswar 751015, Odisha, India
| | - Sanghamitra Nayak
- Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha O Anusandhan University, Kalinganagar, Ghatikia, Bhubaneswar 751003, Odisha, India,
| | - Namita Mahapatra
- Regional Medical Research Centre (Indian Council of Medical Research), Chandrasekharpur, Bhubaneswar 751023, Odisha, India
| |
Collapse
|
118
|
Zhang Z, Feng Y, Li ZY, Cao XZ. Antiproliferative and apoptotic activity of glycyrrhizinic acid in MCF-7 human breast cancer cells and evaluation of its effect on cell cycle, cell migration and m-TOR/PI3K/Akt signalling pathway. Arch Med Sci 2019; 15:174-182. [PMID: 30697268 PMCID: PMC6348358 DOI: 10.5114/aoms.2018.79429] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 10/19/2016] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Glycyrrhizinic acid is a natural product of pharmacological relevance and its anticancer activity against breast cancer cell lines has not been evaluated. Therefore the main purpose of the present study was to investigate the anticancer effects of glycyrrhizinic acid in MCF-7 human breast cancer cells. MATERIAL AND METHODS The MTT assay was used to evaluate the anticancer effects while a clonogenic assay was used to study its effects on colony formation tendency. Flow cytometry was used to study the effects on cell cycle phase distribution and apoptosis. Western blot assay was used to study changes in protein expression of the m-TOR/PI3K/Akt pathway. RESULTS The results indicated that glycyrrhizinic acid caused significant (p < 0.01). The growth inhibitory effects MCF-7 human breast cancer cells. The growth inhibitory effects of glycyrrhizinic acid exhibited concentration-dependent as well as time-dependent growth inhibitory trend. Different doses of glycyrrhizinic acid had a tendency to significantly (p < 0.01) inhibit the colony formation tendency of MCF-7 cells. As compared to the control group, glycyrrhizinic acid-treated cells showed a high percentage of apoptotic cells. Cells treated with a 10, 50 and 100 µM dose of glycyrrhizinic acid led to a 24.3%, 41.5% and 82.1% increase in the sub-G1 phase (apoptotic) cells. Glycyrrhizinic acid also led to significant (p < 0.01) inhibition of cell invasion along with downregulation of m-TOR/PI3K/Akt protein expression. CONCLUSIONS Glycyrrhizinic acid inhibited MCF-7 human breast cancer cell growth and therefore may prove essential lead molecule in the treatment of breast cancer.
Collapse
Affiliation(s)
- Zhen Zhang
- Departments of General Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Yun Feng
- Departments of General Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Zhen-Yu Li
- Departments of General Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Xiao-Zhong Cao
- Departments of General Surgery, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| |
Collapse
|
119
|
Averbukh I, Lai SL, Doe CQ, Barkai N. A repressor-decay timer for robust temporal patterning in embryonic Drosophila neuroblast lineages. eLife 2018; 7:38631. [PMID: 30526852 PMCID: PMC6303102 DOI: 10.7554/elife.38631] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 12/10/2018] [Indexed: 11/13/2022] Open
Abstract
Biological timers synchronize patterning processes during embryonic development. In the Drosophila embryo, neural progenitors (neuroblasts; NBs) produce a sequence of unique neurons whose identities depend on the sequential expression of temporal transcription factors (TTFs). The stereotypy and precision of NB lineages indicate reproducible TTF timer progression. We combine theory and experiments to define the timer mechanism. The TTF timer is commonly described as a relay of activators, but its regulatory circuit is also consistent with a repressor-decay timer, where TTF expression begins when its repressor decays. Theory shows that repressor-decay timers are more robust to parameter variations than activator-relay timers. This motivated us to experimentally compare the relative importance of the relay and decay interactions in vivo. Comparing WT and mutant NBs at high temporal resolution, we show that the TTF sequence progresses primarily by repressor-decay. We suggest that need for robust performance shapes the evolutionary-selected designs of biological circuits.
Collapse
Affiliation(s)
- Inna Averbukh
- Department of Molecular Genetics, Weizmann institute of science, Rehovot, Israel
| | - Sen-Lin Lai
- Institute of Neuroscience, Institute of Molecular Biology, Howard Hughes Medical Institute, University of Oregon, Eugene, United States
| | - Chris Q Doe
- Institute of Neuroscience, Institute of Molecular Biology, Howard Hughes Medical Institute, University of Oregon, Eugene, United States
| | - Naama Barkai
- Department of Molecular Genetics, Weizmann institute of science, Rehovot, Israel
| |
Collapse
|
120
|
Fan Y, Mao Y, Cao S, Xia G, Zhang Q, Zhang H, Qiu F, Kang N. S5, a Withanolide Isolated from Physalis Pubescens L., Induces G2/M Cell Cycle Arrest via the EGFR/P38 Pathway in Human Melanoma A375 Cells. Molecules 2018; 23:E3175. [PMID: 30513793 PMCID: PMC6321527 DOI: 10.3390/molecules23123175] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 11/16/2022] Open
Abstract
S5 is a withanolide natural product isolated from Physalis pubescens L. Our previous experimental studies found that it has significant antitumor activity on renal cell carcinoma. In the present study, the anti-melanoma effect of S5 and the related molecular mechanism was first investigated. It was found that S5 induced an obvious growth inhibitory effect on human melanoma A375 cells with low toxicity to human peripheral blood cells. Furthermore, the results demonstrated that the cell death mode of S5 on A375 cells is not due to inducing apoptosis and autophagy. However, there was a significant time-dependent increase in G2/M phase after treatment of A375 with S5. Meanwhile, S5 could also decrease the protein expression of Cdc25c, Cdc2, and CyclinB1, and increased the expression of p-P53 and P21, suggesting that S5 inhibited A375 cell death through G2/M phase arrest. Moreover, the signal pathway factors P38, extracellular regulated protein kinases (ERK), and epidermal growth factor receptor (EGFR) were observed taking part in the S5-induced A375 cells growth inhibitory effect. In addition, suppressing P38 and EGFR reversed the cell proliferation inhibitory effect and G2/M cell cycle arrest induced by S5 and inhibition of EGFR enhanced the downregulation of the expression of P38 and p-P38, indicating that S5 induced A375 G2/M arrest through the EGFR/P38 pathway. Briefly, this study explained for the first time the mechanism of S5-induced A375 cell growth inhibition in order to provide the basis for its clinical application in melanoma.
Collapse
Affiliation(s)
- Yuqi Fan
- Department of Biochemistry, School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Yiwei Mao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Shijie Cao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Guiyang Xia
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
- Department of Pharmaceutical Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Qiang Zhang
- Department of Biochemistry, School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Hongyang Zhang
- Department of Biochemistry, School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Feng Qiu
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
- Department of Pharmaceutical Chemistry, School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Ning Kang
- Department of Biochemistry, School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| |
Collapse
|
121
|
Sanz-Gómez N, Freije A, Ceballos L, Obeso S, Sanz JR, García-Reija F, Morales-Angulo C, Gandarillas A. Response of head and neck epithelial cells to a DNA damage-differentiation checkpoint involving polyploidization. Head Neck 2018; 40:2487-2497. [PMID: 30311985 DOI: 10.1002/hed.25376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 04/03/2018] [Accepted: 05/23/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Squamous epithelia of the head and neck undergo continuous cell renewal and are continuously exposed to mutagenic hazard, the main cause of cancer. How they maintain homeostasis upon cell cycle deregulation is unclear. METHODS To elucidate how head and neck epithelia respond to cell cycle stress, we studied human keratinocytes from various locations (oral mucosa, tonsil, pharynx, larynx, and trachea). We made use of genotoxic or mitotic drugs (doxorubicin [DOXO], paclitaxel, and nocodazole), or chemical inhibitors of the mitotic checkpoint kinases, Aurora B and polo-like-1. We further tested the response to inactivation of p53, ectopic cyclin E, or to the chemical carcinogen 7,12-dimethylbenz[a]anthracene (DMBA). RESULTS All treatments provoked DNA damage or mitosis impairment and strikingly triggered squamous differentiation and polyploidization, resulting in irreversible loss of clonogenic capacity. CONCLUSION Keratinocytes from head and neck epithelia share a cell-autonomous squamous DNA damage-differentiation response that is common to the epidermis and might continuously protect them from cancer.
Collapse
Affiliation(s)
- Natalia Sanz-Gómez
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Ana Freije
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Laura Ceballos
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Sergio Obeso
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain.,Otorhinolaryngology Unit, Valdecilla Hospital HUVM, Santander, Spain
| | - J Ramón Sanz
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain.,Plastic Surgery Unit, Valdecilla Hospital HUVM, Santander, Spain
| | - Fe García-Reija
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain.,Oral and Maxillofacial Surgery Unit, Valdecilla Hospital HUVM, Santander, Spain
| | - Carmelo Morales-Angulo
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain.,Otorhinolaryngology Unit, Valdecilla Hospital HUVM, Santander, Spain
| | - Alberto Gandarillas
- Cell Cycle, Stem Cell Fate and Cancer Laboratory, Institute for Research of Marqués de Valdecilla (IDIVAL), Santander, Spain.,INSERM, Languedoc-Roussillon, Montpellier, France
| |
Collapse
|
122
|
Maynard A, Bible JM, Pespeni MH, Sanford E, Evans TG. Transcriptomic responses to extreme low salinity among locally adapted populations of Olympia oyster (Ostrea lurida). Mol Ecol 2018; 27:4225-4240. [PMID: 30193406 DOI: 10.1111/mec.14863] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/23/2018] [Accepted: 08/27/2018] [Indexed: 12/26/2022]
Abstract
The Olympia oyster (Ostrea lurida) is a foundation species inhabiting estuaries along the North American west coast. In California estuaries, O. lurida is adapted to local salinity regimes and populations differ in low salinity tolerance. In this study, oysters from three California populations were reared for two generations in a laboratory common garden and subsequently exposed to low salinity seawater. Comparative transcriptomics was then used to understand species-level responses to hyposmotic stress and population-level mechanisms underlying divergent salinity tolerances. Gene expression patterns indicate Olympia oysters are sensitive to hyposmotic stress: All populations respond to low salinity by up-regulating transcripts indicative of protein unfolding, DNA damage and cell cycle arrest after sub-lethal exposure. Among O. lurida populations, transcriptomic profiles differed constitutively and in response to low salinity. Despite two generations in common-garden conditions, transcripts encoding apoptosis modulators were constitutively expressed at significantly different levels in the most tolerant population. Expression of cell death regulators may facilitate cell fate decisions when salinity declines. Following low salinity exposure, oysters from the more tolerant population expressed a small number of mRNAs at significantly higher levels than less tolerant populations. Proteins encoded by these transcripts regulate ciliary activity within the mantle cavity and may function to prolong valve closure and reduce mortality in low salinity seawater. Collectively, gene expression patterns suggest sub-lethal impacts of hyposmotic stress in Olympia oysters are considerable and that even oysters with greater low salinity tolerance may be vulnerable to future freshwater flooding events.
Collapse
Affiliation(s)
- Ashley Maynard
- Department of Biological Sciences, California State University East Bay, Hayward, California
| | - Jillian M Bible
- Department of Evolution and Ecology and Bodega Marine Laboratory, University of California Davis, Bodega Bay, California.,Department of Environmental Science and Studies, Washington College, Chestertown, Maryland
| | | | - Eric Sanford
- Department of Evolution and Ecology and Bodega Marine Laboratory, University of California Davis, Bodega Bay, California
| | - Tyler G Evans
- Department of Biological Sciences, California State University East Bay, Hayward, California
| |
Collapse
|
123
|
Biochanin A Induces S Phase Arrest and Apoptosis in Lung Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3545376. [PMID: 30402472 PMCID: PMC6192129 DOI: 10.1155/2018/3545376] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 08/13/2018] [Indexed: 02/05/2023]
Abstract
Lung cancer is among the most common malignancies with a poor 5-year survival rate reaching only 16%. Thus, new effective treatment modalities and drugs are urgently needed for the treatment of this malignancy. In this study, we conducted the first investigation of the effects of Biochanin A on lung cancer and revealed the mechanisms underlying its potential anticancer effects. Biochanin A decreased cell viability in a time-dependent and dose-dependent manner and suppressed colony formation in A549 and 95D cells. In addition, Biochanin A induced S phase arrest and apoptosis and decreased mitochondrial membrane potential (ΔΨm) in A549 and 95D cells in a dose-dependent manner. Our results of subcutaneous xenograft models showed that the growth of Biochanin A group was significantly inhibited compared with that of control groups. Finally, P21, Caspase-3, and Bcl-2 were activated in Biochanin A-treated cells and Biochanin A-treated xenografts which also demonstrated that Biochanin A induced cell cycle arrest and apoptosis in lung cancer cells by regulating expression of cell cycle-related proteins and apoptosis-related proteins. In conclusion, this study suggests that Biochanin A inhibits the proliferation of lung cancer cells and induces cell cycle arrest and apoptosis mainly by regulating cell cycle-related protein expression and activating the Bcl-2 and Caspase-3 pathways, thus suggesting that Biochanin A may be a promising drug to treat lung cancer.
Collapse
|
124
|
Song F, Li D, Wang Y, Bi X. Drosophila Caliban mediates G1-S transition and ionizing radiation induced S phase checkpoint. Cell Cycle 2018; 17:2256-2267. [PMID: 30231800 DOI: 10.1080/15384101.2018.1524237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Cell cycle progression is precisely regulated by diverse extrinsic and intrinsic cellular factors. Understanding the underlying mechanisms of cell cycle regulation is essential to address how normal development and tissue homeostasis are achieved. Here, we present a novel cell cycle regulator Caliban (Clbn), the Drosophila ortholog of human Serologically defined colon cancer antigen 1 (SDCCAG1) gene. We show that ionizing radiation induces expression of clbn, and over-expression of clbn blocks G1-to-S cell cycle transition in Drosophila, while flies loss of clbn have defective S phase checkpoint in response to irradiation. Mechanistically, induced expression of clbn suppressed E2F1 activity and down-regulates the DNA replication and expression of its downstream target cyclin E, a key regulator of G1-to-S transition. Meanwhile, clbn over-expression leads to upregulation of the CDK inhibitor Dacapo (Dap), and upregulated Dap is decreased when e2f1 is over-expressed. Furthermore, expression of clbn is down-regulated in cells with e2f1 over-expression or rbf1 knockdown, indicating that Clbn and E2F1 act antagonistically in mediating G1-to-S transition. Thus we provide genetic evidence that Clbn works together with E2F1 in regulating cell cycle progression, and Clbn is required for S phase cell cycle checkpoint in response to DNA damage.
Collapse
Affiliation(s)
- Fanghua Song
- a Department of Biological Sciences, College of Basic Medical Sciences , Dalian Medical University , Dalian , China.,b Institute of Cancer Stem Cell, Cancer Center , Dalian Medical University , Dalian , China
| | - Dong Li
- a Department of Biological Sciences, College of Basic Medical Sciences , Dalian Medical University , Dalian , China.,b Institute of Cancer Stem Cell, Cancer Center , Dalian Medical University , Dalian , China
| | - Yajie Wang
- c Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, School of Pharmaceutical Sciences , Wuhan University , Wuhan , China
| | - Xiaolin Bi
- a Department of Biological Sciences, College of Basic Medical Sciences , Dalian Medical University , Dalian , China.,b Institute of Cancer Stem Cell, Cancer Center , Dalian Medical University , Dalian , China
| |
Collapse
|
125
|
Li J, Tang JX, Cheng JM, Hu B, Wang YQ, Aalia B, Li XY, Jin C, Wang XX, Deng SL, Zhang Y, Chen SR, Qian WP, Sun QY, Huang XX, Liu YX. Cyclin B2 can compensate for Cyclin B1 in oocyte meiosis I. J Cell Biol 2018; 217:3901-3911. [PMID: 30097513 PMCID: PMC6219713 DOI: 10.1083/jcb.201802077] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 06/12/2018] [Accepted: 08/01/2018] [Indexed: 11/22/2022] Open
Abstract
Cyclin B1 and its interaction with CDK1 are thought to be critical for meiosis I progression in oocytes. However, using oocyte-specific conditional knockouts, Li et al. show that Cyclin B2 activity can compensate for Cyclin B1 to trigger meiosis resumption. Mammalian oocytes are arrested at the prophase of the first meiotic division for months and even years, depending on species. Meiotic resumption of fully grown oocytes requires activation of M-phase–promoting factor (MPF), which is composed of Cyclin B1 and cyclin-dependent kinase 1 (CDK1). It has long been believed that Cyclin B1 synthesis/accumulation and its interaction with CDK1 is a prerequisite for MPF activation in oocytes. In this study, we revealed that oocyte meiotic resumption occurred in the absence of Cyclin B1. Ccnb1-null oocytes resumed meiosis and extruded the first polar body. Without Cyclin B1, CDK1 could be activated by up-regulated Cyclin B2. Ccnb1 and Ccnb2 double knockout permanently arrested the oocytes at the prophase of the first meiotic division. Oocyte-specific Ccnb1-null female mice were infertile due to failed MPF activity elevation and thus premature interphase-like stage entry in the second meiotic division. These results have revealed a hidden compensatory mechanism between Cyclin B1 and Cyclin B2 in regulating MPF and oocyte meiotic resumption.
Collapse
Affiliation(s)
- Jian Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Ji-Xin Tang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Jin-Mei Cheng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Bian Hu
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China.,Ministry of Education Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Yu-Qian Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Batool Aalia
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xiao-Yu Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Cheng Jin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Xiu-Xia Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Shou-Long Deng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yan Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Su-Ren Chen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Wei-Ping Qian
- Department of Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xing-Xu Huang
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China.,Ministry of Education Key Laboratory of Model Animal for Disease Study, Model Animal Research Center of Nanjing University, Nanjing, China
| | - Yi-Xun Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China .,University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
126
|
Subhapriya S, Gomathipriya P. Induction of apoptotic effects of anti-proliferative zeolite X from coal fly ash on cervical cancer (HeLa) cell lines. Mol Biol Rep 2018; 45:1077-1087. [PMID: 30047039 DOI: 10.1007/s11033-018-4259-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 07/12/2018] [Indexed: 12/12/2022]
Abstract
The synthesised zeolite X from coal fly ash showed significant cytotoxic activity in contradiction of HeLa cells (cervical cancer) in a concentration-dependent way at concentrations ranges from 200 µg to 0.781 µg/ml as shown by MTT assay and failed to cause cytotoxic effect in normal cells (Gh239). Cell cycle analysis exposed that zeolite X (10 and 15 µg/ml) endorses cell growth inhibition by inducing G2/M phase arrest in HeLa cells as observed using flow cytometry. The confocal microscopic results depicted increased early apoptotic related changes in HeLa cell lines induced by zeolite X at a dosage of 10, 15 and 20 µg/ml. Zeolite X at a dosage of 10, 15 and 20 µg/ml in HeLa cells showed fragmentation of DNA by ladder pattern thereby indicates that cell death is related with apoptosis. By the increase of Bax/Bcl-2 ratio, zeolite X leads to the caspase-3 and caspase-9 activation and allow the cells to enter apoptosis. These collective results evidently showed that the influence of mitochondria-mediated signalling pathway in zeolite X induced apoptosis and intensely delivered investigational suggestion for the use of zeolite X as a significant curative agent in the preclusion and therapy of human cervical carcinoma.
Collapse
Affiliation(s)
- S Subhapriya
- Department of Chemical Engineering, Anna University, A.C. Tech Campus, Chennai, Tamil Nadu, 600 025, India
| | - P Gomathipriya
- Department of Chemical Engineering, Anna University, A.C. Tech Campus, Chennai, Tamil Nadu, 600 025, India.
| |
Collapse
|
127
|
Ramírez A, Conejo-García A, Griñán-Lisón C, López-Cara LC, Jiménez G, Campos JM, Marchal JA, Boulaiz H. Enhancement of Tumor Cell Death by Combining gef Gene Mediated Therapy and New 1,4-Benzoxazepin-2,6-Dichloropurine Derivatives in Breast Cancer Cells. Front Pharmacol 2018; 9:798. [PMID: 30093861 PMCID: PMC6070671 DOI: 10.3389/fphar.2018.00798] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/03/2018] [Indexed: 12/17/2022] Open
Abstract
New treatment modalities are urgently needed to better manage advanced breast cancer. Combination therapies are usually more effective than monotherapy. In this context, the use of cyclic and acyclic O,N-acetals derivative compounds in combination with the suicide gef gene shown a potent anti-tumor activity and represent a new generation of anticancer agents. Here, we evaluate the use of the gef gene to promote and increase the anti-tumor effect of cyclic and acyclic O,N-acetals purine derivatives and elucidate their mechanisms of action. Among all compounds tested, those with a nitro group and a cyclic pattern structures (FC-30b2, FC-29c, and bozepinib) are the most benefited from the gef gene effect. These compounds, in combination with gef gene, were able to abolish tumor cell proliferation with a minimal dose leading to more effective and less toxic chemotherapy. The effect of this combined therapy is triggered by apoptosis induction which can be found deregulated in the later stage of breast cancer. Moreover, the combined therapy leads to an increase of cell post-apoptotic secondary necrosis that is able to promote the immunogenicity of cancer cells leading to a successful treatment. This data suggests that this novel combination therapy represents a promising candidate for breast cancer treatment.
Collapse
Affiliation(s)
- Alberto Ramírez
- Biopathology and Medicine Regenerative Institute, University of Granada, Granada, Spain.,Biosanitary Institute of Granada, SAS-Universidad de Granada, Granada, Spain
| | - Ana Conejo-García
- Department of Pharmaceutical and Organic Chemistry, University of Granada, Granada, Spain
| | - Carmen Griñán-Lisón
- Biopathology and Medicine Regenerative Institute, University of Granada, Granada, Spain.,Biosanitary Institute of Granada, SAS-Universidad de Granada, Granada, Spain.,Excellence Research Unit "Modeling Nature" - Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - Luisa C López-Cara
- Department of Pharmaceutical and Organic Chemistry, University of Granada, Granada, Spain
| | - Gema Jiménez
- Biopathology and Medicine Regenerative Institute, University of Granada, Granada, Spain.,Biosanitary Institute of Granada, SAS-Universidad de Granada, Granada, Spain.,Excellence Research Unit "Modeling Nature" - Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - Joaquín M Campos
- Department of Pharmaceutical and Organic Chemistry, University of Granada, Granada, Spain
| | - Juan A Marchal
- Biopathology and Medicine Regenerative Institute, University of Granada, Granada, Spain.,Biosanitary Institute of Granada, SAS-Universidad de Granada, Granada, Spain.,Excellence Research Unit "Modeling Nature" - Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - Houria Boulaiz
- Biopathology and Medicine Regenerative Institute, University of Granada, Granada, Spain.,Biosanitary Institute of Granada, SAS-Universidad de Granada, Granada, Spain.,Excellence Research Unit "Modeling Nature" - Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| |
Collapse
|
128
|
Ma S, Chen X, Tan Q, Li D, Dai S, Wu S, Yu Y, Zang G, Tang Z. An engineered novel lentivector specifically transducing dendritic cells and eliciting robust HBV-specific CTL response by upregulating autophagy in T cells. Cell Cycle 2018; 17:1220-1234. [PMID: 30019620 DOI: 10.1080/15384101.2018.1471312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells (DCs) play a predominant role in initiating cell immune responses. Here we generated a DC-targeting lentiviral vector (LVDC-UbHBcAg-LIGHT) and evaluated its capacity to elicit HBV-specific cytotoxic T lymphocyte (CTL) responses. DC-SIGN-mediated specific transduction using this construct was confirmed in DC-SIGN-expressing 293T cells and ex vivo-cultured bone marrow cells. LVDC-UbHBcAg-LIGHT-loaded DCs were highly effective in inducing HBV-specific CTLs. Mechanistic studies demonstrated autophagy blocking led to a significant increase in apoptosis and obvious inhibition of CD8 + T cells entry into S-phase, correspondingly attenuated LVDC-UbHBcAg-LIGHT-loaded DC-induced T cell responses. This observation was supported by accumulation of pro-apoptotic proteins and the main negative cell cycle regulator-CDKN1B that otherwise would be degraded in activated T cells where autophagy preferentially occured. Our findings revealed an important role of autophagy in the activation of T cells and suggested LVDC-UbHBcAg-LIGHT may potentially be used as a therapeutic strategy to combat persistent HBV infection with higher security.
Collapse
Affiliation(s)
- Siyuan Ma
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Xiaohua Chen
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Quanhui Tan
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Dan Li
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Shenglan Dai
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Shanshan Wu
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Yongsheng Yu
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Guoqing Zang
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| | - Zhenghao Tang
- a Department of Infectious Disease , Shanghai Jiao Tong University Affiliated Sixth People's Hospital , Shanghai , China
| |
Collapse
|
129
|
Lemmens B, Hegarat N, Akopyan K, Sala-Gaston J, Bartek J, Hochegger H, Lindqvist A. DNA Replication Determines Timing of Mitosis by Restricting CDK1 and PLK1 Activation. Mol Cell 2018; 71:117-128.e3. [PMID: 30008317 PMCID: PMC6039720 DOI: 10.1016/j.molcel.2018.05.026] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/27/2018] [Accepted: 05/21/2018] [Indexed: 12/26/2022]
Abstract
To maintain genome stability, cells need to replicate their DNA before dividing. Upon completion of bulk DNA synthesis, the mitotic kinases CDK1 and PLK1 become active and drive entry into mitosis. Here, we have tested the hypothesis that DNA replication determines the timing of mitotic kinase activation. Using an optimized double-degron system, together with kinase inhibitors to enforce tight inhibition of key proteins, we find that human cells unable to initiate DNA replication prematurely enter mitosis. Preventing DNA replication licensing and/or firing causes prompt activation of CDK1 and PLK1 in S phase. In the presence of DNA replication, inhibition of CHK1 and p38 leads to premature activation of mitotic kinases, which induces severe replication stress. Our results demonstrate that, rather than merely a cell cycle output, DNA replication is an integral signaling component that restricts activation of mitotic kinases. DNA replication thus functions as a brake that determines cell cycle duration.
Collapse
Affiliation(s)
- Bennie Lemmens
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden; Division of Genome Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet and Science for Life Laboratory, Stockholm, Sweden
| | - Nadia Hegarat
- Genome Damage and Stability Centre, University of Sussex, Brighton, UK
| | - Karen Akopyan
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Joan Sala-Gaston
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Jiri Bartek
- Division of Genome Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet and Science for Life Laboratory, Stockholm, Sweden; Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Helfrid Hochegger
- Genome Damage and Stability Centre, University of Sussex, Brighton, UK.
| | - Arne Lindqvist
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden.
| |
Collapse
|
130
|
Li G, Xing W, Zhang M, Geng F, Yang H, Zhang H, Zhang X, Li J, Dong L, Gao F. Antifibrotic cardioprotection of berberine via downregulating myocardial IGF-1 receptor-regulated MMP-2/MMP-9 expression in diabetic rats. Am J Physiol Heart Circ Physiol 2018; 315:H802-H813. [PMID: 29957017 DOI: 10.1152/ajpheart.00093.2018] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diabetic cardiac fibrosis increases ventricular stiffness and facilitates the occurrence of diastolic dysfunction. Our previous studies have shown that berberine, a natural alkaloid, attenuates cardiac ischemia-reperfusion injury in diabetic rats. The aim of present study was to investigate the effects of long-term berberine treatment on cardiac remodeling in diabetic rats and the underlying mechanisms. Diabetic rats induced by low-dose streptozotocin injection combined with 8 wk of high-fat diet displayed significant cardiac matrix collagen deposition and dysfunction, whereas berberine administration (200 mg·kg-1·day-1, gavage 4 wk) significantly ameliorated cardiac fibrosis and dysfunction and reduced cardiac IGF-1 receptor (IGF-1R) expression in diabetic rats. Interestingly, IGF-1R expression was upregulated in cardiac fibroblasts isolated from diabetic hearts or cultured in high-glucose conditions (30 mM). High glucose treatment or IGF-1R overexpression increased matrix metalloproteinase (MMP)-2/MMP-9 expression, α-smooth muscle actin (α-SMA), and collagen type I expression in cardiac fibroblasts. In contrast, berberine treatment significantly inhibited IGF-1R expression and exerted an antifibrotic effect in high glucose-cultured cardiac fibroblasts, as manifested by decreased MMP-2/MMP-9, α-SMA, and collagen type I expression, whereas IGF-1R siRNA plus berberine treatment did not further enhance this antifibrotic effect compared with berberine treatment alone. Taken together, long-term berberine treatment ameliorates cardiac fibrosis and dysfunction by downregulating IGF-1R expression in cardiac fibroblasts and subsequently reducing MMP-2/MMP-9, α-SMA, and collagen type I expression in diabetic hearts. The findings suggest the therapeutic potential of berberine for diabetic cardiomyopathy associated with cardiac fibrosis. NEW & NOTEWORTHY Berberine downregulated IGF-1 receptor expression and matrix metalloproteinase-2/matrix metalloproteinase-9 levels in cardiac fibroblasts and thus inhibited fibroblast differentiation and collagen overproduction in diabetic hearts, suggesting a novel mechanism for antifibrotic cardioprotection of berberine in type 2 diabetes.
Collapse
Affiliation(s)
- Guohua Li
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Wenjuan Xing
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Min Zhang
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Fenghao Geng
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Hongyan Yang
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Haifeng Zhang
- Experimental Teaching Center, Fourth Military Medical University , Xi'an , China
| | - Xing Zhang
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Jia Li
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Ling Dong
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China
| | - Feng Gao
- School of Aerospace Medicine, Fourth Military Medical University , Xi'an , China.,Department of Cardiology, Xijing Hospital, Fourth Military Medical University , Xi'an , China
| |
Collapse
|
131
|
mTORC1 accelerates retinal development via the immunoproteasome. Nat Commun 2018; 9:2502. [PMID: 29950673 PMCID: PMC6021445 DOI: 10.1038/s41467-018-04774-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 04/26/2018] [Indexed: 11/26/2022] Open
Abstract
The numbers and types of cells constituting vertebrate neural tissues are determined by cellular mechanisms that couple neurogenesis to the proliferation of neural progenitor cells. Here we identified a role of mammalian target of rapamycin complex 1 (mTORC1) in the development of neural tissue, showing that it accelerates progenitor cell cycle progression and neurogenesis in mTORC1-hyperactive tuberous sclerosis complex 1 (Tsc1)-deficient mouse retina. We also show that concomitant loss of immunoproteasome subunit Psmb9, which is induced by Stat1 (signal transducer and activator of transcription factor 1), decelerates cell cycle progression of Tsc1-deficient mouse retinal progenitor cells and normalizes retinal developmental schedule. Collectively, our results establish a developmental role for mTORC1, showing that it promotes neural development through activation of protein turnover via a mechanism involving the immunoproteasome. One of the determinants of the neuronal subtype produced from retinal progenitor cells is their proliferative potential. Here the authors show that mTORC1 promotes progenitor cell cycle progression and hence accelerated development in mouse retina through induction of the immunoproteasome which enhances the degradation of cyclins.
Collapse
|
132
|
Hou P, Kang Y, Luo J. Hypoxia-mediated miR-212-3p downregulation enhances progression of intrahepatic cholangiocarcinoma through upregulation of Rab1a. Cancer Biol Ther 2018; 19:984-993. [PMID: 29672195 DOI: 10.1080/15384047.2018.1456608] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Rab1a, a member RAS oncogene family, has been reported playing important role in tumor proliferation and migration. However, the role of Rab1a in intrahepatic cholangiocarcinoma (ICC) is not clear. In this study, we found Rab1a was overexpressed in ICC tissues both in mRNA and protein level. Kaplan-meier analysis showed that high expression of Rab1a was associated with poor prognosis of ICC patients. Suppression of Rab1a led to lower proliferation rate and migration ability both in vitro and in vivo by inhibiting process of cell cycle and Epithelial-Mesenchymal Transition (EMT). Further study showed that Rab1a was targeting regulated by miR-212-3p.In addition, expression of Rab1a was increased while miR-212-3p was decreased under hypoxia condition. In conclusion, these findings extend our understanding of Rab1a in progression of ICC, and we found hypoxia/miR-212-3p/Rab1a pathway played important role for progression of ICC. This newly identified pathway should promote the development of novel therapeutic biomarker for ICC.
Collapse
Affiliation(s)
- Panzhang Hou
- a Radiotherapy department , Henan Provicial people's Hospital , Zhengzhou , Henan province , China
| | - Yi Kang
- b Infectious Diseases department , Henan Provicial people's Hospital , Zhengzhou , China
| | - Jianchao Luo
- a Radiotherapy department , Henan Provicial people's Hospital , Zhengzhou , Henan province , China
| |
Collapse
|
133
|
Lee HJ, Jedrychowski MP, Vinayagam A, Wu N, Shyh-Chang N, Hu Y, Min-Wen C, Moore JK, Asara JM, Lyssiotis CA, Perrimon N, Gygi SP, Cantley LC, Kirschner MW. Proteomic and Metabolomic Characterization of a Mammalian Cellular Transition from Quiescence to Proliferation. Cell Rep 2018; 20:721-736. [PMID: 28723573 DOI: 10.1016/j.celrep.2017.06.074] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/22/2017] [Accepted: 06/25/2017] [Indexed: 12/28/2022] Open
Abstract
There exist similarities and differences in metabolism and physiology between normal proliferative cells and tumor cells. Once a cell enters the cell cycle, metabolic machinery is engaged to facilitate various processes. The kinetics and regulation of these metabolic changes have not been properly evaluated. To correlate the orchestration of these processes with the cell cycle, we analyzed the transition from quiescence to proliferation of a non-malignant murine pro-B lymphocyte cell line in response to IL-3. Using multiplex mass-spectrometry-based proteomics, we show that the transition to proliferation shares features generally attributed to cancer cells: upregulation of glycolysis, lipid metabolism, amino-acid synthesis, and nucleotide synthesis and downregulation of oxidative phosphorylation and the urea cycle. Furthermore, metabolomic profiling of this transition reveals similarities to cancer-related metabolic pathways. In particular, we find that methionine is consumed at a higher rate than that of other essential amino acids, with a potential link to maintenance of the epigenome.
Collapse
Affiliation(s)
- Ho-Joon Lee
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | | | | | - Ning Wu
- Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI 49503, USA
| | - Ng Shyh-Chang
- Stem Cell & Regenerative Biology, Genome Institute of Singapore, S138672 Singapore, Singapore
| | - Yanhui Hu
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Chua Min-Wen
- Stem Cell & Regenerative Biology, Genome Institute of Singapore, S138672 Singapore, Singapore
| | - Jodene K Moore
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA
| | - John M Asara
- Division of Signal Transduction, Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02115, USA
| | - Costas A Lyssiotis
- Division of Gastroenterology, Department of Molecular and Integrative Physiology and Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Norbert Perrimon
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Lewis C Cantley
- Meyer Cancer Center, Department of Medicine, Weill Cornell Medical College, New York, NY 10065, USA
| | - Marc W Kirschner
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115, USA.
| |
Collapse
|
134
|
Xi Y, Ma Z, Zhang H, Yuan M, Wang L. Effects of Clostridium difficile toxin A on K562/A02 cell proliferation, apoptosis and multi-drug resistance. Oncol Lett 2018; 15:4215-4220. [PMID: 29545897 PMCID: PMC5841023 DOI: 10.3892/ol.2018.7921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/24/2018] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to investigate the cytotoxic effect and multi-drug resistance (MDR) of Clostridium difficile toxin A (TcdA) on K562/A02 cells, and understand its underlying molecular pathways. K562/A02 cells were treated with TcdA at different concentrations for 24, 48 and 72 h, and the inhibition effect and drug resistance of TcdA on K562/A02 cell proliferation was assessed by methyl thiazolyl tetrazolium colorimetric assay. Furthermore, cell cycle-apoptosis was analyzed by flow cytometry, P-glycoprotein (P-gp) expression was determined by western blot analysis and caspase-3 activity was measured using a caspase-3 activity kit. TcdA inhibited K562/A02 cell proliferation in a time- and dose-dependent manner. The inhibition rate of K562/A02 cells reached 8.76±0.76, 28.55±0.43, 47.89±0.27, 58.08±0.06 and 57.70±0.79% following treatment with 50, 100, 200, 400 and 800 ng/ml TcdA, respectively, for 24 h. K562/A02 cells in the G0/G1 phase increased and cells in the S phase decreased following treatment with TcdA (P<0.05), and the apoptotic rates in the 200 and 400 ng/ml concentration groups were 14.05 and 22.89%, respectively. In addition, TcdA (50 ng/ml) significantly inhibited the proliferation of K562/A02 cells and reduced the half maximal inhibitory concentration of these drugs in combination with chemotherapy drugs. The reversal folds were 3.09, 2.89 and 2.79, respectively. Furthermore, TcdA treatment was associated with the upregulation of P-gp in K562/A02 cells, and caspase-3 activity was observed to increase in K562/A02 cells following TcdA treatment, when compared with untreated controls (P<0.05). These findings suggested that TcdA may be able to inhibit K562/A02 cell growth, induce cell apoptosis by decreasing P-gp levels and caspase-3 activation, and partially reverse MDR. Further studies are required to evaluate the potential of TcdA as a candidate for the chemotherapy of hematologic malignancies.
Collapse
Affiliation(s)
- Yaming Xi
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhuanzhen Ma
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Hao Zhang
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Maowen Yuan
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Lina Wang
- Department of Hematology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| |
Collapse
|
135
|
A comprehensive model for the proliferation-quiescence decision in response to endogenous DNA damage in human cells. Proc Natl Acad Sci U S A 2018; 115:2532-2537. [PMID: 29463760 DOI: 10.1073/pnas.1715345115] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Human cells that suffer mild DNA damage can enter a reversible state of growth arrest known as quiescence. This decision to temporarily exit the cell cycle is essential to prevent the propagation of mutations, and most cancer cells harbor defects in the underlying control system. Here we present a mechanistic mathematical model to study the proliferation-quiescence decision in nontransformed human cells. We show that two bistable switches, the restriction point (RP) and the G1/S transition, mediate this decision by integrating DNA damage and mitogen signals. In particular, our data suggest that the cyclin-dependent kinase inhibitor p21 (Cip1/Waf1), which is expressed in response to DNA damage, promotes quiescence by blocking positive feedback loops that facilitate G1 progression downstream of serum stimulation. Intriguingly, cells exploit bistability in the RP to convert graded p21 and mitogen signals into an all-or-nothing cell-cycle response. The same mechanism creates a window of opportunity where G1 cells that have passed the RP can revert to quiescence if exposed to DNA damage. We present experimental evidence that cells gradually lose this ability to revert to quiescence as they progress through G1 and that the onset of rapid p21 degradation at the G1/S transition prevents this response altogether, insulating S phase from mild, endogenous DNA damage. Thus, two bistable switches conspire in the early cell cycle to provide both sensitivity and robustness to external stimuli.
Collapse
|
136
|
A Network Pharmacology Approach to Uncover the Multiple Mechanisms of Hedyotis diffusa Willd. on Colorectal Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:6517034. [PMID: 29619072 PMCID: PMC5829364 DOI: 10.1155/2018/6517034] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 12/25/2017] [Indexed: 02/08/2023]
Abstract
Background As one of the most frequently diagnosed cancer diseases globally, colorectal cancer (CRC) remains an important cause of cancer-related death. Although the traditional Chinese herb Hedyotis diffusa Willd. (HDW) has been proven to be effective for treating CRC in clinical practice, its definite mechanisms have not been completely deciphered. Objective The aim of our research is to systematically explore the multiple mechanisms of HDW on CRC. Methods This study adopted the network pharmacology approach, which was mainly composed of active component gathering, target prediction, CRC gene collection, network analysis, and gene enrichment analysis. Results The network analysis showed that 10 targets might be the therapeutic targets of HDW on CRC, namely, HRAS, PIK3CA, KRAS, TP53, APC, BRAF, GSK3B, CDK2, AKT1, and RAF1. The gene enrichment analysis implied that HDW probably benefits patients with CRC by modulating pathways related to cancers, infectious diseases, endocrine system, immune system, nervous system, signal transduction, cellular community, and cell motility. Conclusions This study partially verified and predicted the pharmacological and molecular mechanism of HDW against CRC from a holistic perspective, which will also lay a foundation for the further experimental research and clinical rational application of HDW.
Collapse
|
137
|
Liu J, Qiu L, Xia J, Chen S, Yu X, Zhou Y. ZGDHu-1 for cancer therapy. Oncol Lett 2018; 14:6334-6340. [PMID: 29344112 PMCID: PMC5754890 DOI: 10.3892/ol.2017.7096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 01/31/2017] [Indexed: 11/06/2022] Open
Abstract
N,N'-di-(m-methylphenyl)-3,6-dimethyl-1,4-dihydro-1,2,4,5-tetrazine-1,4-dicarboamide (ZGDHu-1) is a novel tetrazine derivative that was initially designed and produced by Professor W.X. Hu, and which has been reported by our group to exhibit antitumor activity. Accumulating evidence suggests that the anticancer mechanisms of ZGDHu-1 may be involved indifferent biological activities, particularly in acute myeloid leukemia (AML) cells. At a high concentration, ZGDHu-1 has been demonstrated to inhibit the proliferation of the leukemia cells by arresting the cell cycle at the G2/M phase, and by inducing cell apoptosis via inducing the accumulation of reactive oxygen species, the translocation of phosphatidylserine across the plasma membrane and the loss of mitochondrial membrane potential. Furthermore, at a low concentration, it was demonstrated to induce the differentiation and degrade the AML1-eight-twenty-one fusion protein in AML cells. Finally, results from a previous study indicate that ZGDHu-1 is a potential proteasome inhibitor. Overall, our preliminary research suggests that ZGDHu-1 may be a promising anticancer drug; however, further research is warranted to identify the exact drug target and potential clinical application in leukemia cells or solid tumors. In the present review, the application of ZGDHu-1 in cancer research, in addition to the specific underlying targets of ZGDHu-1, are discussed.
Collapse
Affiliation(s)
- Jinlin Liu
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China.,Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Liannv Qiu
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Jun Xia
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Sufeng Chen
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xiping Yu
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Yonglie Zhou
- Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| |
Collapse
|
138
|
Nicotinamide suppresses cell growth by G1-phase arrest and induces apoptosis in intrahepatic cholangiocarcinoma. Mol Cell Toxicol 2018. [DOI: 10.1007/s13273-018-0006-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
139
|
Guo H, Wang Q, Li Y, Yin X, Zhang H, Shi J. Overexpression of CDC25C affects the cell cycle of ovarian granulosa cells from adult and young goats. ELECTRON J BIOTECHN 2018. [DOI: 10.1016/j.ejbt.2017.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
140
|
Chen W, Wang W, Chen L, Chen J, Lu X, Li Z, Wu B, Yin L, Guan YQ. Long-term G 1 cell cycle arrest in cervical cancer cells induced by co-immobilized TNF-α plus IFN-γ polymeric drugs. J Mater Chem B 2017; 6:327-336. [PMID: 32254174 DOI: 10.1039/c7tb02608k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A realistic control of cell cycle arrest is an attractive goal for the development of new effective anti-cancer drugs. Any clinical application of an effective anti-cancer drug necessarily relies on the understanding of cellular interaction mechanisms. In the present study, we prepared a co-immobilized TNF-α plus IFN-γ biomaterial, which showed a significant inhibition effect on cervical cancer cell growth, as demonstrated by a series of structural and cellular characterizations. We found that co-immobilized TNF-α plus IFN-α induced a long-term G1 phase cell cycle arrest in HeLa, SiHa, and CaSki cells, respectively. More surprisingly, the expression level of the p27 protein decreased, even when p27 mRNA was highly expressed. In addition, gene-chip results and microarray analysis showed that p57 may be downstream from p27, which acts as a direct regulator of the long-term G1 cell cycle arrest in these cells, leaving no escape for cervical cancer cells. Finally, we also investigated the anti-tumor mechanism of co-immobilized TNF-α plus IFN-γin vivo, using a nude mice animal model. To sum up, our findings suggested that the co-immobilized TNF-α plus IFN-γ can induce a long-term cell cycle arrest in cancer, thus serving as a very efficient tool for treating cervical cancer.
Collapse
Affiliation(s)
- Wuya Chen
- School of Life Science, South China Normal University, Guangzhou 510631, P. R. China.
| | | | | | | | | | | | | | | | | |
Collapse
|
141
|
Liu X, Tan N, Liao H, Pan G, Xu Q, Zhu R, Zou L, He S, Zhu H. High GSTP1 inhibits cell proliferation by reducing Akt phosphorylation and is associated with a better prognosis in hepatocellular carcinoma. Oncotarget 2017; 9:8957-8971. [PMID: 29507666 PMCID: PMC5823662 DOI: 10.18632/oncotarget.23420] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022] Open
Abstract
Glutathione S-transferase (GST) family members promote carcinogenesis and cancer progression. We assessed GST pi 1 (GSTP1) mRNA and protein levels in hepatocellular carcinoma (HCC) using genome databases and tissue microarray (TMA) technology. We found that in cancerous tissues, GSTP1 mRNA was down-regulated in genome databases, and immunohistochemical staining of GSTP1 in 237 HCC cases varied from negative to strongly positive. GSTP1 levels correlated negatively with tumor size and serum alpha-fetoprotein (AFP) in HCC patients, and higher GSTP1 levels associated with longer overall survival (OS) and disease-free survival (DFS). We also found that GSTP1 overexpression restrained HepG2 and Huh7 liver cancer cell proliferation in vivo and in vitro. GSTP1 arrested the cell cycle at G1/S by up-regulating p21 and p27 and down-regulating p-Akt. Interrupting GSTP1 gene expression promoted liver cancer cell proliferation and increased the percentage of cells in S phase by decreasing levels of p21 and p27 and increasing p-Akt. These results suggest high GSTP1 levels provide a better prognosis through suppression of tumorigenesis in HCC.
Collapse
Affiliation(s)
- Xiaojia Liu
- Department of Pathology, Basic Medical School, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Division of Surgical Pathology, Huashan Hospital, Fudan University, Shanghai 200032, China
| | - Ning Tan
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, Guilin 541001, China
| | - Hongtao Liao
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, Guilin 541001, China
| | - Guangdong Pan
- Department of Hepatobiliary Surgery, The People's Hospital of Liuzhou, Liuzhou 545001, China
| | - Qing Xu
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, Guilin 541001, China
| | - Rong Zhu
- Department of Pathology, Basic Medical School, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Liping Zou
- Department of Pathology, Basic Medical School, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Division of Surgical Pathology, Huashan Hospital, Fudan University, Shanghai 200032, China
| | - Songqing He
- Laboratory of Liver Injury and Repair Molecular Medicine, Guilin Medical University, Guilin 541001, China.,Department of Hepatobiliary Surgery, Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Hongguang Zhu
- Department of Pathology, Basic Medical School, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Division of Surgical Pathology, Huashan Hospital, Fudan University, Shanghai 200032, China
| |
Collapse
|
142
|
Cao GY, Li MZ, Wang H, Shi LY, Su YQ. Interference with the C-terminal structure of MARF1 causes defective oocyte meiotic division and female infertility in mice. J Biomed Res 2017; 32:58-67. [PMID: 29353819 PMCID: PMC5956259 DOI: 10.7555/jbr.32.20170108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Meiosis-arrest female 1 (MARF1) is a recently identified key oogenic regulator essential for the maintenance of female fertility and genome integrity in mice. However, the detailed functions and the underlying mechanisms of MARF1 remain elusive. Here, in an attempt to create a mouse model expressing fluorescent protein-tagged MARF1 to facilitate further exploration of the roles of MARF1 in oocytes, we produced a Marf1-eGFP knockin (KI) mouse line in which the C-terminal structure and function of MARF1 were interfered by its fusing eGFP peptide. Using these Marf1-eGFP-KI mice, we revealed, unexpectedly, the functions of MARF1 in the control of oocyte meiotic division. We found that the Marf1-eGFP-KI females ovulated mature oocytes with severe meiotic and developmental defects, and thus were infertile. Moreover, meiotic reinitiation was delayed while meiotic completion was accelerated in the KI-oocytes, which was coincident with the increased incidence of oocyte aneuploidy. Therefore, MARF1 is indispensable for maintaining the fidelity of homolog segregation during oocyte maturation, and this function relies on its C-terminal domains.
Collapse
Affiliation(s)
- Guang-Yi Cao
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Ming-Zhe Li
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Hao Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Lan-Ying Shi
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - You-Qiang Su
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China.,The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510150, China.,Collaborative Innovation Center of Genetics and Development, Fudan University, Shanghai 200433, China.,Key Laboratory of Model Animal Research, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| |
Collapse
|
143
|
Liu C, Sun HN, Luo YH, Piao XJ, Wu DD, Meng LQ, Wang Y, Zhang Y, Wang JR, Wang H, Xu WT, Li JQ, Liu Y, Wu YQ, Han YH, Shen GN, Jin MH, Zang YQ, Li JC, Fang NZ, Cui YD, Jin CH. Cryptotanshinone induces ROS-mediated apoptosis in human gastric cancer cells. Oncotarget 2017; 8:115398-115412. [PMID: 29383168 PMCID: PMC5777780 DOI: 10.18632/oncotarget.23267] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 12/03/2017] [Indexed: 02/07/2023] Open
Abstract
Cryptotanshinone (CT), isolated from the plant Salvia miltiorrhiza Bunge, has been reported to have potential anticancer effects on human prostate and breast cancer cells. However, the mechanisms of action of CT on gastric cancer (GC) cells are not well understood. Here we investigated the antitumor effects of CT on GC cells and its possible molecular mechanism. We found CT suppressed viability of twelve GC cell lines in a dose-dependent manner. CT induced cell cycle arrest at the G2/M phase and mitochondrial apoptosis accompanying the accumulation of reactive oxygen species (ROS). Pretreatment with ROS inhibitor N-acetyl-L-cysteine (NAC) blocked CT-induced apoptosis. CT increased p-JNK and p-p38, and decreased p-ERK and p-STAT3 protein expression, these effects were prevented by NAC. Furthermore, a xenograft assay showed that CT significantly inhibited MKN-45 cell-induced tumor growth in vivo by increasing expression of pro-apoptotic proteins (p-JNK, p-38 and cleaved-caspase-3) and reducing expression of anti-apoptotic proteins (p-ERK and p-STAT3) without adverse effects on nude mice weight. In conclusion, CT induced apoptosis and cell cycle arrest in GC cells via ROS-mediated MAPK and AKT signaling pathways, and this CT may be a useful compound for the developing anticancer agents for GC.
Collapse
Affiliation(s)
- Chang Liu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Hu-Nan Sun
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Ying-Hua Luo
- College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Xian-Ji Piao
- Department of Gynaecology and Obstetrics, The Fifth Affiliated Hospital of Harbin Medical University, Daqing 163316, China
| | - Dan-Dan Wu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Ling-Qi Meng
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yue Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yi Zhang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jia-Ru Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Hao Wang
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Wan-Ting Xu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jin-Qian Li
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yang Liu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yi-Qin Wu
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Ying-Hao Han
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Gui-Nan Shen
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Mei-Hua Jin
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Yan-Qing Zang
- College of Food Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Jing-Chun Li
- College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Nan-Zhu Fang
- Department of Animal Science, College of Agriculture, Yanbian University, Gongyuan-jie, Yanji 133002, China
| | - Yu-Dong Cui
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Cheng-Hao Jin
- Department of Biochemistry and Molecular Biology, College of Life Science & Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| |
Collapse
|
144
|
Li X, Chen X, Jiang J, Yang S, Gao Y. NRBP2 Overexpression Inhibits Cell Proliferation and Migration and Increases Cisplatin Sensitivity in Intrahepatic Cholangiocarcinoma. Technol Cancer Res Treat 2017. [PMCID: PMC5762097 DOI: 10.1177/1533034617747174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Aims: Methods: Results: Conclusions:
Collapse
Affiliation(s)
- Xiaopeng Li
- Department of Ultrasonography, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xin Chen
- Department of Radiology, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Jue Jiang
- Department of Ultrasonography, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Shuanying Yang
- Department of Respiratory Medicine, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Ya Gao
- Department of Pediatric Surgery, The Second Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| |
Collapse
|
145
|
Vitulo N, Vezzi A, Galla G, Citterio S, Marino G, Ruperti B, Zermiani M, Albertini E, Valle G, Barcaccia G. Characterization and Evolution of the Cell Cycle-Associated Mob Domain-Containing Proteins in Eukaryotes. Evol Bioinform Online 2017. [DOI: 10.1177/117693430700300007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The MOB family includes a group of cell cycle-associated proteins highly conserved throughout eukaryotes, whose founding members are implicated in mitotic exit and co-ordination of cell cycle progression with cell polarity and morphogenesis. Here we report the characterization and evolution of the MOB domain-containing proteins as inferred from the 43 eukaryotic genomes so far sequenced. We show that genes for Mob-like proteins are present in at least 41 of these genomes, confirming the universal distribution of this protein family and suggesting its prominent biological function. The phylogenetic analysis reveals five distinct MOB domain classes, showing a progressive expansion of this family from unicellular to multicellular organisms, reaching the highest number in mammals. Plant Mob genes appear to have evolved from a single ancestor, most likely after the loss of one or more genes during the early stage of Viridiplantae evolutionary history. Three of the Mob classes are widespread among most of the analyzed organisms. The possible biological and molecular function of Mob proteins and their role in conserved signaling pathways related to cell proliferation, cell death and cell polarity are also presented and critically discussed.
Collapse
Affiliation(s)
- Nicola Vitulo
- Dipartimento di Biologia, University of Padova, Viale G. Colombo 3, 35121, Padova
| | - Alessandro Vezzi
- Dipartimento di Biologia, University of Padova, Viale G. Colombo 3, 35121, Padova
| | - Giulio Galla
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, University of Padova - Agripolis, Viale dell'Università 16, 35020, Legnaro, Padova, Italy
| | - Sandra Citterio
- Dipartimento di Scienze dell'Ambiente e del Territorio, University of Milano - Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Giada Marino
- Dipartimento di Scienze dell'Ambiente e del Territorio, University of Milano - Bicocca, Piazza della Scienza 1, 20126, Milano, Italy
| | - Benedetto Ruperti
- Dipartimento di Scienze Agrarie e Ambientali, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Monica Zermiani
- Dipartimento di Scienze Agrarie e Ambientali, University of Udine, Via delle Scienze 208, 33100, Udine, Italy
| | - Emidio Albertini
- Dipartimento di Biologia Vegetale e Biotecnologie Agroambientali e Zootecniche, Borgo XX Giugno, 06121, Perugia, Italy
| | - Giorgio Valle
- Dipartimento di Biologia, University of Padova, Viale G. Colombo 3, 35121, Padova
| | - Gianni Barcaccia
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, University of Padova - Agripolis, Viale dell'Università 16, 35020, Legnaro, Padova, Italy
| |
Collapse
|
146
|
Wu J, Lu Y, Qin A, Qiao Z, Jiang X. Overexpression of RAB34 correlates with poor prognosis and tumor progression in hepatocellular carcinoma. Oncol Rep 2017; 38:2967-2974. [PMID: 29048615 DOI: 10.3892/or.2017.5957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 08/22/2017] [Indexed: 11/06/2022] Open
Abstract
RAB34, a protein belonging to the RAB family, is involved in protein transport, repositioning of lysosomes and activation of micropinocytosis. However, few studies have reported its function in human epithelial cancers. Immunohistochemistry (IHC) and western blotting were used to detect expression of RAB34 at the tissue and cell levels. Cell Counting Kit-8 (CCK-8), EDU assay and flow cytometry were used for analyzing cell proliferation. Transwell and scratch wound healing assays were used for assessing cell migration ability. Western blotting was used for detecting expression of E-cadherin and N-cadherin. In the present study, we found that both DNA copy and protein level of RAB34 were upregulating in human hepatocellular carcinoma (HCC) tissues when compared with that in adjacent tissues. Analysis of the correlation between RAB34 expression and clinicopathological features showed that patients with overexpression of RAB34 consistently had large tumor size, vessel invasion and poor tumor grade. Furthermore, overall survival analysis showed that patients with upregulated expression of RAB34 were associated with poor prognosis. Moreover, cell function experiments showed that suppression of RAB34 led to a lower proliferation rate and migration ability. In addition, this phenomenon may be attributed to cell cycle phase G1 arrest and mesenchymal-epithelial transition under condition of RAB34 suppression. The present study demonstrated that RAB34 plays an important role in the initiation and progression of HCC. Our results suggest a new therapeutic target for the clinical treatment of HCC.
Collapse
Affiliation(s)
- Jianwu Wu
- Department of General Surgery, Nanjing Medical University, Affiliated Suzhou Hospital, Gusu, Suzhou, Jiangsu 215000, P.R. China
| | - Yijie Lu
- Department of General Surgery, Nanjing Medical University, Affiliated Suzhou Hospital, Gusu, Suzhou, Jiangsu 215000, P.R. China
| | - Ancheng Qin
- Department of General Surgery, Nanjing Medical University, Affiliated Suzhou Hospital, Gusu, Suzhou, Jiangsu 215000, P.R. China
| | - Zhiming Qiao
- Department of General Surgery, Nanjing Medical University, Affiliated Suzhou Hospital, Gusu, Suzhou, Jiangsu 215000, P.R. China
| | - Xinwei Jiang
- Department of General Surgery, Nanjing Medical University, Affiliated Suzhou Hospital, Gusu, Suzhou, Jiangsu 215000, P.R. China
| |
Collapse
|
147
|
Wang D, Ma L, Wang B, Liu J, Wei W. E3 ubiquitin ligases in cancer and implications for therapies. Cancer Metastasis Rev 2017; 36:683-702. [DOI: 10.1007/s10555-017-9703-z] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
148
|
Wang Y, Chen T, Huang H, Jiang Y, Yang L, Lin Z, He H, Liu T, Wu B, Chen J, Kamp DW, Liu G. miR-363-3p inhibits tumor growth by targeting PCNA in lung adenocarcinoma. Oncotarget 2017; 8:20133-20144. [PMID: 28423618 PMCID: PMC5386750 DOI: 10.18632/oncotarget.15448] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 01/10/2017] [Indexed: 12/22/2022] Open
Abstract
Increasing evidence suggests that microRNAs play key roles in lung cancer. Our previous study demonstrated that microRNA 363-3p (miR-363-3p) is downregulated in lung cancer tissues. In this study, we demonstrated that overexpression of miR-363-3p inhibits the proliferation and colony formation of A549 and H441 cells, while silencing of miR-363-3p has the converse effects. The anti-oncogenic function of miR-363-3p was verified in a mouse tumor xenograft model. Furthermore, cell cycle analysis showed miR-363-3p can induce S phase arrest by downregulating Cyclin-D1 and upregulating Cyclin-dependent kinase-2 in lung adenocarcinoma cells. Additionally, miR-363-3p enhances cell apoptosis, whereas miR-363-3p inhibitor prevents apoptosis and leads to downregulation of Bax and Bak expression. The anti-proliferative function of miR-363-3p toward lung cancer cells may be explained by its ability to inhibit the activation of the mTOR and ERK signaling pathways. Using target prediction software and luciferase reporter assays, we identified PCNA as a specific target of miR-363-3p. miR-363-3p can decreased the accumulation of endogenous PCNA in lung adenocarcinoma cells. Moreover, exogenous expression of PCNA relieve the inhibition of miR-363-3p on cell proliferation, colony formation and mTOR and ERK signaling pathways. Taken together, our data indicate that miR-363-3p suppresses tumor growth by targeting PCNA in lung adenocarcinoma.
Collapse
Affiliation(s)
- Yahong Wang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ting Chen
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Haili Huang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yun Jiang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Lawei Yang
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ziying Lin
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Huijuan He
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tie Liu
- The First Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an, China
| | - Bin Wu
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jie Chen
- Department of Cardiothoracic Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - David W Kamp
- Department of Medicine, Northwestern University Feinberg School of Medicine and Jesse Brown VA Medical Center, Chicago, USA
| | - Gang Liu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| |
Collapse
|
149
|
de Sousa Moraes LF, Sun X, Peluzio MDCG, Zhu MJ. Anthocyanins/anthocyanidins and colorectal cancer: What is behind the scenes? Crit Rev Food Sci Nutr 2017; 59:59-71. [PMID: 28799785 DOI: 10.1080/10408398.2017.1357533] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Colorectal cancer (CRC) is one of the most common cause of cancer death. Phytochemicals, especially anthocyanins/anthocyanidins (A/A), have gathered attention of the scientific community owing to their anti-inflammatory, antioxidant, and cancer-inhibitory properties. In this review, we discussed the possible mechanisms whereby A/A exhibit intestinal anticarcinogenic characteristics. Anthocyanins/anthocyanidins inhibit the pro-inflammatory NF-κB pathway, attenuate Wnt signaling and suppress abnormal epithelial cell proliferation. In addition, A/A induce mitochondrial-mediated apoptosis and downregulate Akt/mTOR (mammalian target of rapamycin) pathway. Furthermore, activation of AMP-activated protein kinase (AMPK) and sirtuin 1 (SIRT1) also contributes to the anti-carcinogenic effects of A/A. Finally, downregulation of metalloproteinases (MMPs) by A/A inhibits tumor invasion and metastasis. In conclusion, A/A exert their anti-tumor effects against colorectal carcinogenesis via multiple mechanisms, providing insights into the use of A/A as a natural chemopreventive intervention on major colorectal carcinogenesis.
Collapse
Affiliation(s)
- Luís Fernando de Sousa Moraes
- a School of Food Science , Washington State University , Pullman , WA , USA.,b Department of Nutrition and Health , Universidade Federal de Viçosa , Viçosa - Minas Gerais , Brazil
| | - Xiaofei Sun
- a School of Food Science , Washington State University , Pullman , WA , USA
| | | | - Mei-Jun Zhu
- a School of Food Science , Washington State University , Pullman , WA , USA
| |
Collapse
|
150
|
Ye RR, Cao JJ, Tan CP, Ji LN, Mao ZW. Valproic Acid-Functionalized Cyclometalated Iridium(III) Complexes as Mitochondria-Targeting Anticancer Agents. Chemistry 2017; 23:15166-15176. [DOI: 10.1002/chem.201703157] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/14/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Rui-Rong Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Jian-Jun Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Liang-Nian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry and Chemical Engineering; Sun Yat-Sen University; Guangzhou 510275 P. R. China
| |
Collapse
|