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Rangone H, Bond L, Weil TT, Glover DM. Greatwall-Endos-PP2A/B55 Twins network regulates translation and stability of maternal transcripts in the Drosophila oocyte-to-embryo transition. Open Biol 2024; 14:240065. [PMID: 38896085 DOI: 10.1098/rsob.240065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 04/24/2024] [Indexed: 06/21/2024] Open
Abstract
The transition from oocyte to embryo requires translation of maternally provided transcripts that in Drosophila is activated by Pan Gu kinase to release a rapid succession of 13 mitotic cycles. Mitotic entry is promoted by several protein kinases that include Greatwall/Mastl, whose Endosulfine substrates antagonize Protein Phosphatase 2A (PP2A), facilitating mitotic Cyclin-dependent kinase 1/Cyclin B kinase activity. Here we show that hyperactive greatwallScant can not only be suppressed by mutants in its Endos substrate but also by mutants in Pan Gu kinase subunits. Conversely, mutants in me31B or trailer hitch, which encode a complex that represses hundreds of maternal mRNAs, enhance greatwallScant . Me31B and Trailer Hitch proteins, known substrates of Pan Gu kinase, copurify with Endos. This echoes findings that budding yeast Dhh1, orthologue of Me31B, associates with Igo1/2, orthologues of Endos and substrates of the Rim15, orthologue of Greatwall. endos-derived mutant embryos show reduced Me31B and elevated transcripts for the mitotic activators Cyclin B, Polo and Twine/Cdc25. Together, our findings demonstrate a previously unappreciated conservation of the Greatwall-Endosulfine pathway in regulating translational repressors and its interactions with the Pan Gu kinase pathway to regulate translation and/or stability of maternal mRNAs upon egg activation.
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Affiliation(s)
- Hélène Rangone
- Department of Genetics, University of Cambridge, Downing Street , Cambridge, UK
| | - Laura Bond
- Department of Genetics, University of Cambridge, Downing Street , Cambridge, UK
| | - Timothy T Weil
- Department of Zoology, University of Cambridge, Downing Street , Cambridge, UK
| | - David M Glover
- Department of Genetics, University of Cambridge, Downing Street , Cambridge, UK
- Division of Biology and Biological Engineering, California Institute of Technology, 1200 E. California Blvd , Pasadena, CA 91125, USA
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2
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Zhao B, Qin X, Fu R, Yang M, Hu X, Zhao S, Cui Y, Guo Q, Zhou W. Supramolecular nanodrug targeting CDK4/6 overcomes BAG1 mediated cisplatin resistance in oral squamous cell carcinoma. J Control Release 2024; 368:623-636. [PMID: 38479445 DOI: 10.1016/j.jconrel.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/01/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
Chemoresistance to cisplatin remains a significant challenge affecting the prognosis of advanced oral squamous cell carcinoma (OSCC). However, the specific biomarkers and underlying mechanisms responsible for cisplatin resistance remain elusive. Through comprehensive bioinformatic analyses, we identified a potential biomarker, BCL2 associated athanogene-1 (BAG1), showing elevated expression in head and neck squamous cell carcinoma (HNSCC). Since OSCC represents the primary pathological type of HNSCC, we investigated BAG1 expression in human tumor tissues and cisplatin resistant OSCC cell lines, revealing that silencing BAG1 induced apoptosis in cisplatin-resistant cells both in vitro and in vivo. This effect led to impaired cell viability of cisplatin resistant OSCC cells and indicated a positive correlation between BAG1 expression and the G1/S transition during cell proliferation. Based on these insights, the administration of a CDK4/6 inhibitor in combination with cisplatin effectively overcame cisplatin resistance in OSCC through the CDK4/6-BAG1 axis. Additionally, to enable simultaneous drug delivery and enhance synergistic antitumor efficacy, we developed a novel supramolecular nanodrug LEE011-FFERGD/CDDP, which was validated in an OSCC orthotopic mouse model. In summary, our study highlights the potential of a combined administration of CDK4/6 inhibitor and cisplatin as a promising therapeutic regimen for treating advanced or cisplatin resistant OSCC.
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Affiliation(s)
- Borui Zhao
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, Tianjin 300070, China
| | - Xuan Qin
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Tianjin' s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Rui Fu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, Tianjin 300070, China
| | - Maosen Yang
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
| | - Xin Hu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Oral Soft and Hard Tissues Restoration and Regeneration, Tianjin 300070, China
| | - Shaorong Zhao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, China; Tianjin' s Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yange Cui
- Program in Gene Expression and Regulation, The Wistar Institute, Philadelphia, PA 19104, USA
| | - Qingxiang Guo
- College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China.
| | - Wei Zhou
- Cardiovascular Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
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Hu H, Tan D, Luo T, Tong X, Han M, Shen J, Dai F. Cyclin B3 plays pleiotropic roles in female reproductive organogenesis and early embryogenesis in the silkworm, Bombyx mori. PEST MANAGEMENT SCIENCE 2024; 80:376-387. [PMID: 37698372 DOI: 10.1002/ps.7767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/22/2023] [Accepted: 09/12/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND The reproductive system plays a crucial role in insect survival, reproduction and species specificity. Understanding the molecular mechanisms underlying reproductive organogenesis contributes to improving the efficiency of sterile insect technique marked by an eco-friendly pest management strategy. Lepidoptera is one of the largest orders of insects, most of which are major pests in agriculture and forestry. Our study aimed to screen the genes responsible for reproductive organogenesis and unravel the mechanism underlying female reproductive organ defects. RESULTS Morphological investigation of female reproductive organs showed a defective connection between oviductus geminus and oviductus communis on the second day of pupa (P2) in Speckled mutant silkworm. RNA_Seq identified a total of 18 049 transcripts that were expressed in the P2 female internal reproductive organs without ovary in Spc/+ compared to +Spc /+Spc . Differential expression analysis identified 312 up-regulated genes and 221 down-regulated genes in Spc/+. KEGG analysis identified 44 significantly enriched pathways. The results of qRT-PCR performed on 33 genes significantly matched the outcomes of the RNA_Seq. Dysfunction of Cyclin B3 resulted in a defective connection of the oviductus communis with the ovariole, dysfunction of oogenesis, and a petite body. Moreover, homozygous recessive lethality of Cyclin B3/Cyclin B3 occurred during early embryogenesis. CONCLUSION Our results suggest that Cyclin B3 is a pleiotropic functional gene that regulates early embryogenesis, oogenesis, development, and female reproductive organogenesis. These results showed that Cyclin B3 has significant effects on lepidopteran mortality, growth, and reproductive physiology, which might be considered a novel and potentially eco-friendly target for lepidopteran pest management. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Hai Hu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Duan Tan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
| | - Tianfu Luo
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Xiaoling Tong
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Minjin Han
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Jianghong Shen
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
| | - Fangyin Dai
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, China
- College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing, China
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Sarma S, Dowerah D, Basumatary M, Phonglo A, Deka RC. Inhibitory potential of furanocoumarins against cyclin dependent kinase 4 using integrated docking, molecular dynamics and ONIOM methods. J Biomol Struct Dyn 2024:1-30. [PMID: 38189343 DOI: 10.1080/07391102.2023.2300755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/23/2023] [Indexed: 01/09/2024]
Abstract
Cyclin Dependent Kinase 4 (CDK4) is vital in the process of cell-cycle and serves as a G1 phase checkpoint in cell division. Selective antagonists of CDK4 which are in use as clinical chemotherapeutics cause various side-effects in patients. Furanocoumarins induce anti-cancerous effects in a range of human tumours. Therefore, targeting these compounds against CDK4 is anticipated to enhance therapeutic effectiveness. This work intended to explore the CDK4 inhibitory potential of 50 furanocoumarin molecules, using a comprehensive approach that integrates the processes of docking, drug-likeness, pharmacokinetic analysis, molecular dynamics simulations and ONIOM (Our own N-layered Integrated molecular Orbital and Molecular mechanics) methods. The top five best docked compounds obtained from docking studies were screened for subsequent analysis. The molecules displayed good pharmacokinetic properties and no toxicity. Epoxybergamottin, dihydroxybergamottin and notopterol were found to inhabit the ATP-binding zone of CDK4 with substantial stability and negative binding free energy forming hydrogen bonds with key catalytic residues of the protein. Notopterol exhibiting the highest binding energy was subjected to ONIOM calculations wherein the hydrogen bonding interactions were retained with significant negative interaction energy. Hence, through these series of computerised methods, notopterol was screened as a potent CDK4 inhibitor and can act as a starting point in successive processes of drug design.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Srutishree Sarma
- CMML-Catalysis and Molecular Modelling Lab, Department of Chemical Sciences, Tezpur University, Sonitpur, Assam, India
| | - Dikshita Dowerah
- CMML-Catalysis and Molecular Modelling Lab, Department of Chemical Sciences, Tezpur University, Sonitpur, Assam, India
| | - Moumita Basumatary
- CMML-Catalysis and Molecular Modelling Lab, Department of Chemical Sciences, Tezpur University, Sonitpur, Assam, India
| | - Ambalika Phonglo
- CMML-Catalysis and Molecular Modelling Lab, Department of Chemical Sciences, Tezpur University, Sonitpur, Assam, India
| | - Ramesh Ch Deka
- CMML-Catalysis and Molecular Modelling Lab, Department of Chemical Sciences, Tezpur University, Sonitpur, Assam, India
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Gordon T. Brief Electrical Stimulation Promotes Recovery after Surgical Repair of Injured Peripheral Nerves. Int J Mol Sci 2024; 25:665. [PMID: 38203836 PMCID: PMC10779324 DOI: 10.3390/ijms25010665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
Injured peripheral nerves regenerate their axons in contrast to those in the central nervous system. Yet, functional recovery after surgical repair is often disappointing. The basis for poor recovery is progressive deterioration with time and distance of the growth capacity of the neurons that lose their contact with targets (chronic axotomy) and the growth support of the chronically denervated Schwann cells (SC) in the distal nerve stumps. Nonetheless, chronically denervated atrophic muscle retains the capacity for reinnervation. Declining electrical activity of motoneurons accompanies the progressive fall in axotomized neuronal and denervated SC expression of regeneration-associated-genes and declining regenerative success. Reduced motoneuronal activity is due to the withdrawal of synaptic contacts from the soma. Exogenous neurotrophic factors that promote nerve regeneration can replace the endogenous factors whose expression declines with time. But the profuse axonal outgrowth they provoke and the difficulties in their delivery hinder their efficacy. Brief (1 h) low-frequency (20 Hz) electrical stimulation (ES) proximal to the injury site promotes the expression of endogenous growth factors and, in turn, dramatically accelerates axon outgrowth and target reinnervation. The latter ES effect has been demonstrated in both rats and humans. A conditioning ES of intact nerve days prior to nerve injury increases axonal outgrowth and regeneration rate. Thereby, this form of ES is amenable for nerve transfer surgeries and end-to-side neurorrhaphies. However, additional surgery for applying the required electrodes may be a hurdle. ES is applicable in all surgeries with excellent outcomes.
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Affiliation(s)
- Tessa Gordon
- Division of Reconstructive Surgery, Department of Surgery, University of Toronto, Toronto, ON M4G 1X8, Canada
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6
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de la Fuente A, Scoggin C, Bradecamp E, Martin-Pelaez S, van Heule M, Troedsson M, Daels P, Meyers S, Dini P. Transcriptome Signature of Immature and In Vitro-Matured Equine Cumulus-Oocytes Complex. Int J Mol Sci 2023; 24:13718. [PMID: 37762020 PMCID: PMC10531358 DOI: 10.3390/ijms241813718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Maturation is a critical step in the development of an oocyte, and it is during this time that the oocyte advances to metaphase II (MII) of the meiotic cycle and acquires developmental competence to be fertilized and become an embryo. However, in vitro maturation (IVM) remains one of the limiting steps in the in vitro production of embryos (IVP), with a variable percentage of oocytes reaching the MII stage and unpredictable levels of developmental competence. Understanding the dynamics of oocyte maturation is essential for the optimization of IVM culture conditions and subsequent IVP outcomes. Thus, the aim of this study was to elucidate the transcriptome dynamics of oocyte maturation by comparing transcriptomic changes during in vitro maturation in both oocytes and their surrounding cumulus cells. Cumulus-oocyte complexes were obtained from antral follicles and divided into two groups: immature and in vitro-matured (MII). RNA was extracted separately from oocytes (OC) and cumulus cells (CC), followed by library preparation and RNA sequencing. A total of 13,918 gene transcripts were identified in OC, with 538 differentially expressed genes (DEG) between immature OC and in vitro-matured OC. In CC, 13,104 genes were expressed with 871 DEG. Gene ontology (GO) analysis showed an association between the DEGs and pathways relating to nuclear maturation in OC and GTPase activity, extracellular matrix organization, and collagen trimers in CC. Additionally, the follicle-stimulating hormone receptor gene (FSHR) and luteinizing hormone/choriogonadotropin receptor gene (LHCGR) showed differential expressions between CC-MII and immature CC samples. Overall, these results serve as a foundation to further investigate the biological pathways relevant to oocyte maturation in horses and pave the road to improve the IVP outcomes and the overall clinical management of equine assisted reproductive technologies (ART).
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Affiliation(s)
- Alejandro de la Fuente
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Charles Scoggin
- LeBlanc Reproduction Center, Rood and Riddle Equine Hospital, Lexington, KY 40511, USA
| | - Etta Bradecamp
- LeBlanc Reproduction Center, Rood and Riddle Equine Hospital, Lexington, KY 40511, USA
| | - Soledad Martin-Pelaez
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Machteld van Heule
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
- Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, University of Ghent, 9820 Merelbeke, Belgium
| | - Mats Troedsson
- Gluck Equine Research Center, University of Kentucky, Lexington, KY 40506, USA
| | - Peter Daels
- Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, University of Ghent, 9820 Merelbeke, Belgium
| | - Stuart Meyers
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Pouya Dini
- Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
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Wu R, Lin H, Zhang W, Sun Y, Qian X, Lin G, Ma C, Dong Z, Yu B, Yang L, Liu Y, Liu M. Cooperation of long noncoding RNA LOC100909675 and transcriptional regulator CTCF modulates Cdk1 transcript to control astrocyte proliferation. J Biol Chem 2023; 299:105153. [PMID: 37567476 PMCID: PMC10485634 DOI: 10.1016/j.jbc.2023.105153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Astrocyte activation and proliferation contribute to glial scar formation during spinal cord injury (SCI), which limits nerve regeneration. The long noncoding RNAs (lncRNAs) are involved in astrocyte proliferation and act as novel epigenetic regulators. Here, we found that lncRNA-LOC100909675 (LOC9675) expression promptly increased after SCI and that reducing its expression decreased the proliferation and migration of the cultured spinal astrocytes. Depletion of LOC9675 reduced astrocyte proliferation and facilitated axonal regrowth after SCI. LOC9675 mainly localized in astrocytic nuclei. We used RNA-seq to analyze gene expression profile alterations in LOC9675-depleted astrocytes and identified the cyclin-dependent kinase 1 (Cdk1) gene as a hub candidate. Our RNA pull-down and RNA immunoprecipitation assays showed that LOC9675 directly interacted with the transcriptional regulator CCCTC-binding factor (CTCF). Dual-luciferase reporter and chromatin immunoprecipitation assays, together with downregulated/upregulated expression investigation, revealed that CTCF is a novel regulator of the Cdk1 gene. Interestingly, we found that with the simultaneous overexpression of CTCF and LOC9675 in astrocytes, the Cdk1 transcript was restored to the normal level. We then designed the deletion construct of LOC9675 by removing its interacting region with CTCF and found this effect disappeared. A transcription inhibition assay using actinomycin D revealed that LOC9675 could stabilize Cdk1 mRNA, while LOC9675 depletion or binding with CTCF reduced Cdk1 mRNA stability. These data suggest that the cooperation between CTCF and LOC9675 regulates Cdk1 transcription at a steady level, thereby strictly controlling astrocyte proliferation. This study provides a novel perspective on the regulation of the Cdk1 gene transcript by lncRNA LOC9675.
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Affiliation(s)
- Ronghua Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Haixu Lin
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Wei Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Ying Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Xiaowei Qian
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Ge Lin
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Chao Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Zhangji Dong
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Bin Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China
| | - Liu Yang
- Departement of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Yan Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.
| | - Mei Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, China.
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8
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Rourke C, Jaramillo-Lambert A. TOP-2 is differentially required for the proper maintenance of the cohesin subunit REC-8 on meiotic chromosomes in Caenorhabditis elegans spermatogenesis and oogenesis. Genetics 2022; 222:iyac120. [PMID: 35951744 PMCID: PMC9526062 DOI: 10.1093/genetics/iyac120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/01/2022] [Indexed: 11/14/2022] Open
Abstract
During meiotic prophase I, accurate segregation of homologous chromosomes requires the establishment of chromosomes with a meiosis-specific architecture. The sister chromatid cohesin complex and the enzyme Topoisomerase II (TOP-2) are important components of meiotic chromosome architecture, but the relationship of these proteins in the context of meiotic chromosome segregation is poorly defined. Here, we analyzed the role of TOP-2 in the timely release of the sister chromatid cohesin subunit REC-8 during spermatogenesis and oogenesis of Caenorhabditis elegans. We show that there is a different requirement for TOP-2 in meiosis of spermatogenesis and oogenesis. The loss-of-function mutation top-2(it7) results in premature REC-8 removal in spermatogenesis, but not oogenesis. This correlates with a failure to maintain the HORMA-domain proteins HTP-1 and HTP-2 (HTP-1/2) on chromosome axes at diakinesis and mislocalization of the downstream components that control REC-8 release including Aurora B kinase. In oogenesis, top-2(it7) causes a delay in the localization of Aurora B to oocyte chromosomes but can be rescued through premature activation of the maturation promoting factor via knockdown of the inhibitor kinase WEE-1.3. The delay in Aurora B localization is associated with an increase in the length of diakinesis bivalents and wee-1.3 RNAi mediated rescue of Aurora B localization in top-2(it7) is associated with a decrease in diakinesis bivalent length. Our results imply that the sex-specific effects of TOP-2 on REC-8 release are due to differences in the temporal regulation of meiosis and chromosome structure in late prophase I in spermatogenesis and oogenesis.
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Affiliation(s)
- Christine Rourke
- Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA
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Ikeda S, Ono H, Ohta T, Chiba H, Naito Y, Moriya Y, Kawashima S, Yamamoto Y, Okamoto S, Goto S, Katayama T. TogoID: an exploratory ID converter to bridge biological datasets. Bioinformatics 2022; 38:4194-4199. [PMID: 35801937 PMCID: PMC9438948 DOI: 10.1093/bioinformatics/btac491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/08/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022] Open
Abstract
MOTIVATION Understanding life cannot be accomplished without making full use of biological data, which are scattered across databases of diverse categories in life sciences. To connect such data seamlessly, identifier (ID) conversion plays a key role. However, existing ID conversion services have disadvantages, such as covering only a limited range of biological categories of databases, not keeping up with the updates of the original databases and outputs being hard to interpret in the context of biological relations, especially when converting IDs in multiple steps. RESULTS TogoID is an ID conversion service implementing unique features with an intuitive web interface and an application programming interface (API) for programmatic access. TogoID currently supports 65 datasets covering various biological categories. TogoID users can perform exploratory multistep conversions to find a path among IDs. To guide the interpretation of biological meanings in the conversions, we crafted an ontology that defines the semantics of the dataset relations. AVAILABILITY AND IMPLEMENTATION The TogoID service is freely available on the TogoID website (https://togoid.dbcls.jp/) and the API is also provided to allow programmatic access. To encourage developers to add new dataset pairs, the system stores the configurations of pairs at the GitHub repository (https://github.com/togoid/togoid-config) and accepts the request of additional pairs. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | | | - Tazro Ohta
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Hirokazu Chiba
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Yuki Naito
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Yuki Moriya
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Shuichi Kawashima
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Yasunori Yamamoto
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Shinobu Okamoto
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
| | - Susumu Goto
- Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, Kashiwa, Chiba 277-0871, Japan
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10
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Cheng J, Liu Y. Knockout of cyclin B1 in granulosa cells causes female subfertility. Cell Cycle 2022; 21:1867-1878. [PMID: 35536551 PMCID: PMC9359391 DOI: 10.1080/15384101.2022.2074740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
In mammalian cells, cyclin B1 plays a pivotal role in mitotic and meiotic progression. It has been reported that infertility occurs after disruption of cyclin B1 (Ccnb1) in male germ cells and oocytes. However, it remains to be elucidated whether the specific disruption of Ccnb1 in granulosa cells influences the reproductive activity of female mice. Amhr2 is expressed in granulosa cells (GCs) of the ovary. Here, we mated Ccnb1Flox/Flox mice with a transgenic mouse strain expressing Amhr2-Cre to generate GC-specific Ccnb1 knockout mice. The results showed that Ccnb1 Flox/Flox, Amhr2-Cre (Ccnb1 cKO) mice were subfertile but had normal oocyte meiotic progress, spindle shape and protein levels of cohesin subunits REC8 and SMC3 on arm chromosomes during meiosis I. A further study found that 32.4% of oocytes from Ccnb1 cKO mice exhibited chromosome condensation and spindle disassembly after the first polar body extrusion and failed to undergo second meiosis, which was never found in oocytes from Ccnb1Flox/Flox mice. In addition, the percentages of 2-cell embryos, morulas, and blastocysts in the Ccnb1 mutant group were all dramatically decreased compared to those in the Ccnb1Flox/Flox group (39.2% vs. 86.8%, 26.0% vs. 85.0%, 19.1% vs. 85.8%, respectively). Therefore, GC-specific Ccnb1 deletion in mice could cause fewer and poor-quality blastocysts and subsequent subfertility, which plays an important role in understanding the function of cyclin B1 in reproduction.
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Affiliation(s)
- Jinmei Cheng
- School of Medicine, Institute of Reproductive Medicine, Nantong University, Nantong, Jiangsu, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, Xicheng, China
| | - Yixun Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, Xicheng, China
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11
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An advanced network pharmacology study to explore the novel molecular mechanism of Compound Kushen Injection for treating hepatocellular carcinoma by bioinformatics and experimental verification. BMC Complement Med Ther 2022; 22:54. [PMID: 35236335 PMCID: PMC8892752 DOI: 10.1186/s12906-022-03530-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 02/07/2022] [Indexed: 12/13/2022] Open
Abstract
Background Compound Kushen Injection (CKI) is a Chinese patent drug that exerts curative effects in the clinical treatment of hepatocellular carcinoma (HCC). This study aimed to explore the targets and potential pharmacological mechanisms of CKI in the treatment of HCC. Methods In this study, network pharmacology was used in combination with molecular biology experiments to predict and verify the molecular mechanism of CKI in the treatment of HCC. The constituents of CKI were identified by UHPLC-MS/MS and literature search. The targets corresponding to these compounds and the targets related to HCC were collected based on public databases. To screen out the potential hub targets of CKI in the treatment of HCC, a compound-HCC target network was constructed. The underlying pharmacological mechanism was explored through the subsequent enrichment analysis. Interactive Gene Expression Profiling Analysis and Kaplan-Meier plotter were used to examine the expression and prognostic value of hub genes. Furthermore, the effects of CKI on HCC were verified through molecular docking simulations and cell experiments in vitro. Results Network analysis revealed that BCHE, SRD5A2, EPHX2, ADH1C, ADH1A and CDK1 were the key targets of CKI in the treatment of HCC. Among them, only CDK1 was highly expressed in HCC tissues, while the other 5 targets were lowly expressed. Furthermore, the six hub genes were all closely related to the prognosis of HCC patients in survival analysis. Molecular docking revealed that there was an efficient binding potential between the constituents of CKI and BCHE. Experiments in vitro proved that CKI inhibited the proliferation of HepG2 cells and up-regulated SRD5A2 and ADH1A, while down-regulated CDK1 and EPHX2. Conclusions This study revealed and verified the targets of CKI on HCC based on network pharmacology and experiments and provided a scientific reference for further mechanism research. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03530-3.
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12
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Strączyńska P, Papis K, Morawiec E, Czerwiński M, Gajewski Z, Olejek A, Bednarska-Czerwińska A. Signaling mechanisms and their regulation during in vivo or in vitro maturation of mammalian oocytes. Reprod Biol Endocrinol 2022; 20:37. [PMID: 35209923 PMCID: PMC8867761 DOI: 10.1186/s12958-022-00906-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 02/06/2022] [Indexed: 12/18/2022] Open
Abstract
In vitro fertilization (IVF) is currently one of the most effective methods of infertility treatment. An alternative to commonly used ovarian hyperstimulation can become extracorporeal maturation of oocytes (in vitro maturation; IVM). Fertilization and normal development of the embryo depends on the cytoplasmic, nuclear and genomic maturity of the oocyte. The microenvironment of the ovarian follicle and maternal signals, which mediate bidirectional communication between granulosa, cumulus and oocyte cells, influence the growth, maturation and acquisition of oocyte development capability. During oogenesis in mammals, the meiosis is inhibited in the oocyte at the prophase I of the meiotic division due to the high cAMP level. This level is maintained by the activity of C-type natriuretic peptide (CNP, NPPC) produced by granulosa cells. The CNP binds to the NPR2 receptor in cumulus cells and is responsible for the production of cyclic guanosine monophosphate (cGMP). The cGMP penetrating into the oocyte through gap junctions inhibits phosphodiesterase 3A (PDE3A), preventing cAMP hydrolysis responsible for low MPF activity. The LH surge during the reproductive cycle reduces the activity of the CNP/NPR2 complex, which results in a decrease in cGMP levels in cumulus cells and consequently in the oocyte. Reduced cGMP concentration unblocks the hydrolytic activity of PDE3A, which decreases cAMP level inside the oocyte. This leads to the activation of MPF and resumption of meiosis. The latest IVM methods called SPOM, NFSOM or CAPA IVM consist of two steps: prematuration and maturation itself. Taking into account the role of cAMP in inhibiting and then unblocking the maturation of oocytes, they have led to a significant progress in terms of the percentage of mature oocytes in vitro and the proportion of properly developed embryos in both animals and humans.
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Affiliation(s)
- Patrycja Strączyńska
- Department of Gynecology, Obstetrics and Oncological Gynecology in Bytom, Medical University of Silesia, Katowice, Poland
- Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Katowice, Poland
- Gyncentrum Fertility Clinic, Katowice, Poland
| | - Krzysztof Papis
- Center for Translational Medicine, Warsaw University of Life Sciences, Warsaw, Poland.
- nOvum Fertility Clinic, Warsaw, Poland.
| | - Emilia Morawiec
- Gyncentrum Fertility Clinic, Katowice, Poland
- Department of Microbiology, Faculty of Medicine in Zabrze, University of Technology in Katowice, Katowice, Poland
| | | | - Zdzisław Gajewski
- Center for Translational Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - Anita Olejek
- Department of Gynecology, Obstetrics and Oncological Gynecology in Bytom, Medical University of Silesia, Katowice, Poland
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13
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Wang F, Wu P, Qin S, Deng Y, Han P, Li X, Fan C, Xu Y. Curcin C inhibit osteosarcoma cell line U2OS proliferation by ROS induced apoptosis, autophagy and cell cycle arrest through activating JNK signal pathway. Int J Biol Macromol 2022; 195:433-439. [PMID: 34896468 DOI: 10.1016/j.ijbiomac.2021.11.156] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 12/14/2022]
Abstract
Osteosarcoma is a kind of primary bone malignant tumors. Its cure rate has been stagnant in the past decade years. Curcin C belongs to type I ribosome inactivating proteins, extracted from the cotyledons of post-germinated Jatropha curcas seeds. It can inhibit the proliferation of several tumor lines including U2OS cells with extraordinary efficiency. The treated U2OS cells were arrested in both S and G2/M phase, showed typical apoptosis morphological characteristic, formed autophagosomes and increase the ratio of LC3II to LC3I. Meanwhile, the level of ROS in the treated cells was found increasing significantly, with the change of mitochondrial membrane potential and decreased antioxidant enzyme activities. The application of ROS scavenger NAC not only significantly inhibited the toxicity of Curcin C but also prevented the happen of apoptosis and autophagy to some extent. These results suggested that Curcin C may function through ROS pathway. In addition, the Curcin C treatment could activate JNK and inhibit ERK signal pathway. Sp600125, an inhibitor of JNK signaling pathway, can prevent subsequent apoptosis and autophagy events, suggesting that JNK pathway was at least one of the pathways of Curcin C action. Moreover, the relevant including antagonistic among autophagy, apoptosis and cell cycle arresting induced by Curcin C also was found. In summary, it can be speculated that Curcin C may induce S, G2/M phase arrest, apoptosis and autophagy of human osteosarcoma U2OS cells through activating JNK signal pathway and blocking ERK signal pathway by promoting ROS accumulation in cell, thus finally reflected in the effect of inhibiting tumor cell proliferation.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Peng Wu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Siying Qin
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yushan Deng
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Pan Han
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xiao Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Caixin Fan
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Ying Xu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China.
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14
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Anticancer Effects and Molecular Action of 7-α-Hydroxyfrullanolide in G2/M-Phase Arrest and Apoptosis in Triple Negative Breast Cancer Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020407. [PMID: 35056723 PMCID: PMC8779136 DOI: 10.3390/molecules27020407] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/29/2021] [Accepted: 01/06/2022] [Indexed: 02/07/2023]
Abstract
Triple negative breast cancer (TNBC) is a breast cancer subtype characterized by the absence of estrogen receptor, progesterone receptor and human epidermal growth factor receptor 2 expression. TNBC cells respond poorly to targeted chemotherapies currently in use and the mortality rate of TNBC remains high. Therefore, it is necessary to identify new chemotherapeutic agents for TNBC. In this study, the anti-cancer effects of 7-α-hydroxyfrullanolide (7HF), derived from Grangea maderaspatana, on MCF-7, MDA-MB-231 and MDA-MB-468 breast cancer cells were assessed using MTT assay. The mode of action of 7HF in TNBC cells treated with 6, 12 and 24 µM of 7HF was determined by flow cytometry and propidium iodide (PI) staining for cell cycle analysis and annexin V/fluorescein isothiocyanate + PI staining for detecting apoptosis. The molecular mechanism of action of 7HF in TNBC cells was investigated by evaluating protein expression using proteomic techniques and western blotting. Subsequently, 7HF exhibited the strongest anti-TNBC activity toward MDA-MB-468 cells and a concomitantly weak toxicity toward normal breast cells. The molecular mechanism of action of low-dose 7HF in TNBC cells primarily involved G2/M-phase arrest through upregulation of the expression of Bub3, cyclin B1, phosphorylated Cdk1 (Tyr 15) and p53-independent p21. Contrastingly, the upregulation of PP2A-A subunit expression may have modulated the suppression of various cell survival proteins such as p-Akt (Ser 473), FoxO3a and β-catenin. The concurrent apoptotic effect of 7HF on the treated cells was mediated via both intrinsic and extrinsic modes through the upregulation of Bax and active cleaved caspase-7–9 expression and downregulation of Bcl-2 and full-length caspase-7–9 expression. Notably, the proteomic approach revealed the upregulation of the expression of pivotal protein clusters associated with G1/S-phase arrest, G2/M-phase transition and apoptosis. Thus, 7HF exhibits promising anti-TNBC activity and at a low dose, it modulates signal transduction associated with G2/M-phase arrest and apoptosis.
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15
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Li Q, Yang F, Shi X, Bian S, Shen F, Wu Y, Zhu C, Fu F, Wang J, Zhou J, Chen Y. MTHFD2 promotes ovarian cancer growth and metastasis via activation of the STAT3 signaling pathway. FEBS Open Bio 2021; 11:2845-2857. [PMID: 34231329 PMCID: PMC8487042 DOI: 10.1002/2211-5463.13249] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 12/02/2022] Open
Abstract
Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is a bifunctional enzyme located in the mitochondria. MTHFD2 has been reported to be overexpressed in several malignant tumors and is implicated in cancer development. This study aimed to investigate the effect of MTHFD2 on ovarian cancer progression. The expression of MTHFD2 was detected by bioinformatic analysis, immunohistochemistry, RT‐qPCR (real‐time quantitative PCR analysis), and western blot analysis. The effects of MTHFD2 depletion on cell proliferation, migration, and invasion were determined through in vitro experiments. Cell cycle progression and apoptosis were accessed by flow cytometry. The related signaling pathway protein expression was determined by western blot analysis. We found that MTHFD2 is highly expressed in both ovarian cancer tissues and cell lines. MTHFD2 deletion suppressed cell proliferation and metastasis. Knockdown of MTHFD2 induces cell apoptosis and G2/M arrest, whereas the number of cells in S phase increased with MTHFD2 overexpression. Mechanically, our results indicate that an inhibitory effect of MTHFD2 knockdown may be mediated by the downregulation of cyclin B1/Cdc2 complex and the inhibitory effect on its activity. Additionally, MTHFD2 could regulate cell growth and aggressiveness via activation of STAT3 and the STAT3‐induced epithelial–mesenchymal transition signaling pathway. These findings indicate that MTHFD2 is overexpressed in ovarian cancer and regulates cell proliferation and metastasis, presenting an attractive therapeutic target.
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Affiliation(s)
- Qiutong Li
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Fang Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Xiu Shi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Shimin Bian
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Fangrong Shen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Yuhong Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Chenjie Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Fengqing Fu
- Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Juan Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Jinhua Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
| | - Youguo Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Clinical Research Center of Obstetrics and Gynecology, Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China.,Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.,Jiangsu Key Laboratory of Clinical Immunology, Soochow University, Suzhou, People's Republic of China
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16
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Lou S, Hong H, Maihesuti L, Gao H, Zhu Z, Xu L, Tian S, Kai G, Huang G, Zhao H. Inhibitory effect of hydnocarpin D on T-cell acute lymphoblastic leukemia via induction of autophagy-dependent ferroptosis. Exp Biol Med (Maywood) 2021; 246:1541-1553. [PMID: 33926261 DOI: 10.1177/15353702211004870] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Hydnocarpin D (HD) is a bioactive flavonolignan compound that possesses promising anti-tumor activity, although the mechanism is not fully understood. Using T cell acute lymphoblastic leukemia (T-ALL) cell lines Jurkat and Molt-4 as model system, we found that HD suppressed T-ALL proliferation in vitro, via induction of cell cycle arrest and subsequent apoptosis. Furthermore, HD increased the LC3-II levels and the formation of autophagolysosome vacuoles, both of which are markers for autophagy. The inhibition of autophagy by either knockdown of ATG5/7 or pre-treatment of 3-MA partially rescued HD-induced apoptosis, thus suggesting that autophagy enhanced the efficacy of HD. Interestingly, this cytotoxic autophagy triggered ferroptosis, as evidenced by the accumulation of lipid ROS and decrease of GSH and GPX4, while inhibition of autophagy impeded ferroptotic cell death. Our study suggests that HD triggers multiple cell death processes and is an interesting compound that should be evaluated in future preclinical studies.
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Affiliation(s)
- Siyue Lou
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Huanwu Hong
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Liwaliding Maihesuti
- Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.,School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hang Gao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Zhihui Zhu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Lili Xu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Shasha Tian
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Guoyin Kai
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Guozheng Huang
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243002, China
| | - Huajun Zhao
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
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17
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Zhao BW, Sun SM, Xu K, Li YY, Lei WL, Li L, Liu SL, Ouyang YC, Sun QY, Wang ZB. FBXO34 Regulates the G2/M Transition and Anaphase Entry in Meiotic Oocytes. Front Cell Dev Biol 2021; 9:647103. [PMID: 33842473 PMCID: PMC8027338 DOI: 10.3389/fcell.2021.647103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 02/22/2021] [Indexed: 11/17/2022] Open
Abstract
There are two important events in oocyte meiotic maturation, the G2/M transition and metaphase I progression. Thousands of proteins participate in regulating oocyte maturation, which highlights the importance of the ubiquitin proteasome system (UPS) in regulating protein synthesis and degradation. Skp1–Cullin–F-box (SCF) complexes, as the best characterized ubiquitin E3 ligases in the UPS, specifically recognize their substrates. F-box proteins, as the variable adaptors of SCF, can bind substrates specifically. Little is known about the functions of the F-box proteins in oocyte maturation. In this study, we found that depletion of FBXO34, an F-box protein, led to failure of oocyte meiotic resumption due to a low activity of MPF, and this phenotype could be rescued by exogenous overexpression of CCNB1. Strikingly, overexpression of FBXO34 promoted germinal vesicle breakdown (GVBD), but caused continuous activation of spindle assembly checkpoint (SAC) and MI arrest of oocytes. Here, we demonstrated that FBXO34 regulated both the G2/M transition and anaphase entry in meiotic oocytes.
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Affiliation(s)
- Bing-Wang Zhao
- 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
| | - Si-Min Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Ke Xu
- 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
| | - Yuan-Yuan Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Wen-Long Lei
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Li Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Sai-Li 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
| | - Ying-Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Qing-Yuan Sun
- Fertility Preservation Lab, Reproductive Medicine Center, Guangdong Second Provincial General Hospital, Guangzhou, China
| | - Zhen-Bo 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.,Institute for Stem Cell and Regenerative Medicine, Chinese Academy of Sciences, Beijing, China.,Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, China
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18
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Fu XH, Chen CZ, Li S, Han DX, Wang YJ, Yuan B, Gao Y, Zhang JB, Jiang H. Dual-specificity phosphatase 1 regulates cell cycle progression and apoptosis in cumulus cells by affecting mitochondrial function, oxidative stress, and autophagy. Am J Physiol Cell Physiol 2019; 317:C1183-C1193. [DOI: 10.1152/ajpcell.00012.2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Dual-specificity phosphatase 1 ( DUSP1) is differentially expressed in cumulus cells of different physiological states, but its specific function and mechanism of action remain unclear. In this study, we explored the effects of DUSP1 expression inhibition on cell cycle progression, proliferation, apoptosis, and lactate and cholesterol levels in cumulus cells and examined reactive oxygen species levels, mitochondrial function, autophagy, and the expression of key cytokine genes. The results showed that inhibition of DUSP1 in cumulus cells caused abnormal cell cycle progression, increased cell proliferation, decreased apoptosis rates, increased cholesterol synthesis and lactic acid content, and increased cell expansion. The main reason for these effects was that inhibition of DUSP1 reduced ROS accumulation, increased glutathione level and mitochondrial membrane potential, and reduced autophagy levels in cells. These results indicate that DUSP1 limits the biological function of bovine cumulus cells under normal physiological conditions and will greatly contribute to further explorations of the physiological functions of cumulus cells and the interactions of the cumulus-oocyte complex.
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Affiliation(s)
- Xu-huang Fu
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Cheng-zhen Chen
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Sheng Li
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Dong-xu Han
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Yi-jie Wang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Bao Yuan
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Yan Gao
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Jia-bao Zhang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
| | - Hao Jiang
- College of Animal Sciences, Jilin University, Changchun, Jilin, China
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19
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Li Y, Guo L, Li H, Li J, Dong F, Yi Z, Ouyang Y, Hou Y, Wang Z, Sun Q, Lu S, Han Z. NEK5 regulates cell cycle progression during mouse oocyte maturation and preimplantation embryonic development. Mol Reprod Dev 2019; 86:1189-1198. [DOI: 10.1002/mrd.23234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/25/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Yuan‐Yuan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi High Education Key Laboratory for Animal Reproduction and Biotechnology, College of Animal Science and TechnologyGuangxi UniversityNanning China
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Lei Guo
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Hui Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Jian Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Feng Dong
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Zi‐Yun Yi
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Ying‐Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Yi Hou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Zhen‐Bo Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Qing‐Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
| | - Sheng‐Sheng Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐Bioresources, Guangxi High Education Key Laboratory for Animal Reproduction and Biotechnology, College of Animal Science and TechnologyGuangxi UniversityNanning China
| | - Zhiming Han
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of ZoologyChinese Academy of SciencesBeijing China
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20
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Skalka G, Hall H, Somers J, Bushell M, Willis A, Malewicz M. Leucine zipper and ICAT domain containing (LZIC) protein regulates cell cycle transitions in response to ionizing radiation. Cell Cycle 2019; 18:963-975. [PMID: 30973299 PMCID: PMC6527300 DOI: 10.1080/15384101.2019.1601476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 03/11/2019] [Accepted: 03/25/2019] [Indexed: 01/18/2023] Open
Abstract
Common hallmarks of cancer include the dysregulation of cell cycle progression and the acquisition of genome instability. In tumors, G1 cell cycle checkpoint induction is often lost. This increases the reliance on a functional G2/M checkpoint to prevent progression through mitosis with damaged DNA, avoiding the introduction of potentially aberrant genetic alterations. Treatment of tumors with ionizing radiation (IR) utilizes this dependence on the G2/M checkpoint. Therefore, identification of factors which regulate this process could yield important biomarkers for refining this widely used cancer therapy. Leucine zipper and ICAT domain containing (LZIC) downregulation has been associated with the development of IR-induced tumors. However, despite LZIC being highly conserved, it has no known molecular function. We demonstrate that LZIC knockout (KO) cell lines show a dysregulated G2/M cell cycle checkpoint following IR treatment. In addition, we show that LZIC deficient cells competently activate the G1 and early G2/M checkpoint but fail to maintain the late G2/M checkpoint after IR exposure. Specifically, this defect was found to occur downstream of PIKK signaling. The LZIC KO cells demonstrated severe aneuploidy indicative of genomic instability. In addition, analysis of data from cancer patient databases uncovered a strong correlation between LZIC expression and poor prognosis in several cancers. Our findings suggest that LZIC is functionally involved in cellular response to IR, and its expression level could serve as a biomarker for patient stratification in clinical cancer practice.
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Affiliation(s)
- George Skalka
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Holly Hall
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
- Beatson Institute for Cancer Research, Glasgow, UK
| | - Joanna Somers
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
| | - Martin Bushell
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
- Beatson Institute for Cancer Research, Glasgow, UK
| | - Anne Willis
- MRC Toxicology Unit, University of Cambridge, Leicester, UK
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21
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Developmental Control of the Cell Cycle: Insights from Caenorhabditis elegans. Genetics 2019; 211:797-829. [PMID: 30846544 PMCID: PMC6404260 DOI: 10.1534/genetics.118.301643] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 10/10/2018] [Indexed: 12/11/2022] Open
Abstract
During animal development, a single fertilized egg forms a complete organism with tens to trillions of cells that encompass a large variety of cell types. Cell cycle regulation is therefore at the center of development and needs to be carried out in close coordination with cell differentiation, migration, and death, as well as tissue formation, morphogenesis, and homeostasis. The timing and frequency of cell divisions are controlled by complex combinations of external and cell-intrinsic signals that vary throughout development. Insight into how such controls determine in vivo cell division patterns has come from studies in various genetic model systems. The nematode Caenorhabditis elegans has only about 1000 somatic cells and approximately twice as many germ cells in the adult hermaphrodite. Despite the relatively small number of cells, C. elegans has diverse tissues, including intestine, nerves, striated and smooth muscle, and skin. C. elegans is unique as a model organism for studies of the cell cycle because the somatic cell lineage is invariant. Somatic cells divide at set times during development to produce daughter cells that adopt reproducible developmental fates. Studies in C. elegans have allowed the identification of conserved cell cycle regulators and provided insights into how cell cycle regulation varies between tissues. In this review, we focus on the regulation of the cell cycle in the context of C. elegans development, with reference to other systems, with the goal of better understanding how cell cycle regulation is linked to animal development in general.
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22
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Yi ZY, Liang QX, Meng TG, Li J, Dong MZ, Hou Y, Ouyang YC, Zhang CH, Schatten H, Sun QY, Qiao J, Qian WP. PKCβ1 regulates meiotic cell cycle in mouse oocyte. Cell Cycle 2019; 18:395-412. [PMID: 30730241 DOI: 10.1080/15384101.2018.1564492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
PKCβI, a member of the classical protein kinase C family, plays key roles in regulating cell cycle transition. Here, we report the expression, localization and functions of PKCβI in mouse oocyte meiotic maturation. PKCβI and p-PKCβI (phosphor-PKCβI) were expressed from germinal vesicle (GV) stage to metaphase II (MII) stage. Confocal microscopy revealed that PKCβI was localized in the GV and evenly distributed in the cytoplasm after GV breakdown (GVBD), and it was concentrated at the midbody at telophase in meiotic oocytes. While, p-PKCβI was concentrated at the spindle poles at the metaphase stages and associated with midbody at telophase. Depletion of PKCβI by specific siRNA injection resulted in defective spindles, accompanied with spindle assembly checkpoint activation, metaphase I arrest and failure of first polar body (PB1) extrusion. Live cell imaging analysis also revealed that knockdown of PKCβI resulted in abnormal spindles, misaligned chromosomes, and meiotic arrest of oocytes arrest at the Pro-MI/MI stage. PKCβI depletion did not affect the G2/M transition, but its overexpression delayed the G2/M transition through regulating Cyclin B1 level and Cdc2 activity. Our findings reveal that PKCβI is a critical regulator of meiotic cell cycle progression in oocytes. Abbreviations: PKC, protein kinase C; COC, cumulus-oocyte complexes; GV, germinal vesicle; GVBD, germinal vesicle breakdown; Pro-MI, first pro-metaphase; MI, first metaphase; Tel I, telophase I; MII, second metaphase; PB1, first polar body; SAC, spindle assembly checkpoint.
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Affiliation(s)
- Zi-Yun Yi
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Qiu-Xia Liang
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Tie-Gang Meng
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Jian Li
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Ming-Zhe Dong
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Yi Hou
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Ying-Chun Ouyang
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Chun-Hui Zhang
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
| | - Heide Schatten
- c Department of Veterinary Pathobiology , University of Missouri-Columbia , Columbia , MO , USA
| | - Qing-Yuan Sun
- b State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences , Beijing , China
| | - Jie Qiao
- d Reproductive Medical Center , Peking University Third Hospital , Beijing , China
| | - Wei-Ping Qian
- a The Reproductive Medicine Center , Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center , Shenzhen , China
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23
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Long-term arsenite exposure induces testicular toxicity by redox imbalance, G2/M cell arrest and apoptosis in mice. Toxicology 2019; 411:122-132. [DOI: 10.1016/j.tox.2018.09.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 09/06/2018] [Accepted: 09/26/2018] [Indexed: 01/22/2023]
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24
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Gao F, Zuo Q, Jiang T, Song H, Zhou J. A newly synthesized oleanolic acid derivative inhibits the growth of osteosarcoma cells in vitro and in vivo by decreasing c-MYC-dependent glycolysis. J Cell Biochem 2018; 120:9264-9276. [PMID: 30552712 DOI: 10.1002/jcb.28202] [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] [Received: 03/22/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022]
Abstract
Osteosarcoma (OS) is the primary malignant bone tumor with a peak incidence in children and adolescents. However, the little molecular mechanism of pathogenesis has been known and it is urgent to develop new therapeutical strategies to improve outcomes for patients. CDDO-NFM (N-formylmorpholine substituent of CDDO) is a newly synthesized triterpenoid, which is a derivative of oleanolic acid. In this study, we explored whether CDDO-NFM possesses a potential antitumor effect and revealed its molecular mechanism. We found that CDDO-NFM efficiently inhibited cell growth of OS cells and this inhibitory effect was independent of apoptosis-related and cell-cycle-related proteins. CDDO-NFM could decrease the level of glucose uptake, the generation of lactate, and the production of adenosine triphosphate to block the process of glycolysis. In vitro and in vivo cell-based assays showed that CDDO-NFM inhibited glycolysis via degradation of c-MYC rather than activating peroxisome proliferator-activated receptor gamma. Finally, CDDO-NFM could reduce tumor volume and weight with low toxicity, and down-regulate the expression of glycolysis-related enzymes in nude mice. Taken together, these results showed that CDDO-NFM might be a promising antitumor compound.
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Affiliation(s)
- Feng Gao
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qiang Zuo
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tao Jiang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Huanghe Song
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jinchun Zhou
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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25
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Ding L, Yang L, He Y, Zhu B, Ren F, Fan X, Wang Y, Li M, Li J, Kuang Y, Liu S, Zhai W, Ma D, Ju Y, Liu Q, Jia B, Sheng J, Chang Z. CREPT/RPRD1B associates with Aurora B to regulate Cyclin B1 expression for accelerating the G2/M transition in gastric cancer. Cell Death Dis 2018; 9:1172. [PMID: 30518842 PMCID: PMC6281615 DOI: 10.1038/s41419-018-1211-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 10/30/2018] [Accepted: 11/07/2018] [Indexed: 11/09/2022]
Abstract
Gastric cancer, like most of other cancers, has an uncontrolled cell cycle regulated by cyclins and cyclin-dependent kinases (CDKs). In this study, we reported that gastric cancer cells showed an accelerated G2/M transition promoted by CREPT/RPRD1B and Aurora kinase B (Aurora B). We found that CREPT/RPRD1B and Aurora B were coordinately expressed during the cell cycle in gastric cancer cells. Deletion of CREPT/RPRD1B disturbed the cell progression and extended the length of cell cycle, leading to a significant accumulation of mitotic cells. Mechanistically, we revealed that CREPT/RPRD1B interacted with Aurora B to regulate the expression of Cyclin B1 in gastric cancer cells. Interestingly, Aurora B phosphorylates S145 in a well-conserved motif of CREPT/RPRD1B. We proposed that phosphorylation of CREPT/RPRD1B by Aurora B is required for promoting the transcription of Cyclin B1, which is critical for the regulation of gastric tumorigenesis. Our study provides a mechanism by which gastric tumor cells maintain their high proliferation rate via coordination of Aurora B and CREPT/RPRD1B on the expression of Cyclin B1. Targeting the interaction of Aurora B and CREPT/RPRD1B might be a strategy for anti-gastric cancer therapy in the future.
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Affiliation(s)
- Lidan Ding
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Liu Yang
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yuqi He
- Department of Gastroenterology, PLA Army General Hospital, Beijing, 100700, China
| | - Bingtao Zhu
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Fangli Ren
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Xuanzi Fan
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yinyin Wang
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Mengdi Li
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Jun Li
- Institute of Immunology, PLA, The Third Military Medical University, Chongqing, 400038, China
| | - Yanshen Kuang
- Department of General Surgery/Pathology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Sihan Liu
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Wanli Zhai
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Danhui Ma
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yanfang Ju
- Department of General Surgery/Pathology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Quentin Liu
- Cancer Center, State Key Lab of Cancer in South China, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Baoqing Jia
- Department of General Surgery/Pathology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jianqiu Sheng
- Department of Gastroenterology, PLA Army General Hospital, Beijing, 100700, China.
| | - Zhijie Chang
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, Beijing, 100084, China.
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26
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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: 50] [Impact Index Per Article: 8.3] [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.
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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
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27
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Do DV, Strauss B, Cukuroglu E, Macaulay I, Wee KB, Hu TX, Igor RDLM, Lee C, Harrison A, Butler R, Dietmann S, Jernej U, Marioni J, Smith CWJ, Göke J, Surani MA. SRSF3 maintains transcriptome integrity in oocytes by regulation of alternative splicing and transposable elements. Cell Discov 2018; 4:33. [PMID: 29928511 PMCID: PMC6006335 DOI: 10.1038/s41421-018-0032-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/19/2018] [Accepted: 03/28/2018] [Indexed: 02/08/2023] Open
Abstract
The RNA-binding protein SRSF3 (also known as SRp20) has critical roles in the regulation of pre-mRNA splicing. Zygotic knockout of Srsf3 results in embryo arrest at the blastocyst stage. However, SRSF3 is also present in oocytes, suggesting that it might be critical as a maternally inherited factor. Here we identify SRSF3 as an essential regulator of alternative splicing and of transposable elements to maintain transcriptome integrity in mouse oocyte. Using 3D time-lapse confocal live imaging, we show that conditional deletion of Srsf3 in fully grown germinal vesicle oocytes substantially compromises the capacity of germinal vesicle breakdown (GVBD), and consequently entry into meiosis. By combining single cell RNA-seq, and oocyte micromanipulation with steric blocking antisense oligonucleotides and RNAse-H inducing gapmers, we found that the GVBD defect in mutant oocytes is due to both aberrant alternative splicing and derepression of B2 SINE transposable elements. Together, our study highlights how control of transcriptional identity of the maternal transcriptome by the RNA-binding protein SRSF3 is essential to the development of fertilized-competent oocytes.
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Affiliation(s)
- Dang Vinh Do
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3DY UK
| | - Bernhard Strauss
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
| | - Engin Cukuroglu
- Computational and Systems Biology, Genome Institute of Singapore, 60 Biopolis Street, Singapore, 138672 Singapore
| | - Iain Macaulay
- Earlham Institute, Norwich Research Park, Norwich, NR4 7UH UK
| | - Keng Boon Wee
- Department Fluid Dynamics, Institute of High Performance Computing, 1 Fusionopolis Way, Singapore, 138632 Singapore
- Biomolecular Function Discovery Division, Bioinformatics Institute, 30 Biopolis Street, Singapore, 138671 Singapore
| | - Tim Xiaoming Hu
- EMBL European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, CB10 1SD, Cambridge, UK
| | | | - Caroline Lee
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3DY UK
| | - Andrew Harrison
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
| | - Richard Butler
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
| | - Sabine Dietmann
- Wellcome Trust Medical Research Council Stem Cell Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QR UK
| | - Ule Jernej
- Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | - John Marioni
- Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Robinson Way, Cambridge, CB2 0RE UK
- Wellcome Trust Sanger Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SA UK
| | - Christopher W. J. Smith
- Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QW UK
| | - Jonathan Göke
- Computational and Systems Biology, Genome Institute of Singapore, 60 Biopolis Street, Singapore, 138672 Singapore
| | - M. Azim Surani
- Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QN UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Street, Cambridge, CB2 3DY UK
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28
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Ferrandiz N, Barroso C, Telecan O, Shao N, Kim HM, Testori S, Faull P, Cutillas P, Snijders AP, Colaiácovo MP, Martinez-Perez E. Spatiotemporal regulation of Aurora B recruitment ensures release of cohesion during C. elegans oocyte meiosis. Nat Commun 2018; 9:834. [PMID: 29483514 PMCID: PMC5827026 DOI: 10.1038/s41467-018-03229-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 01/26/2018] [Indexed: 11/09/2022] Open
Abstract
The formation of haploid gametes from diploid germ cells requires the regulated two-step release of sister chromatid cohesion (SCC) during the meiotic divisions. Here, we show that phosphorylation of cohesin subunit REC-8 by Aurora B promotes SCC release at anaphase I onset in C. elegans oocytes. Aurora B loading to chromatin displaying Haspin-mediated H3 T3 phosphorylation induces spatially restricted REC-8 phosphorylation, preventing full SCC release during anaphase I. H3 T3 phosphorylation is locally antagonized by protein phosphatase 1, which is recruited to chromosomes by HTP-1/2 and LAB-1. Mutating the N terminus of HTP-1 causes ectopic H3 T3 phosphorylation, triggering precocious SCC release without impairing earlier HTP-1 roles in homolog pairing and recombination. CDK-1 exerts temporal regulation of Aurora B recruitment, coupling REC-8 phosphorylation to oocyte maturation. Our findings elucidate a complex regulatory network that uses chromosome axis components, H3 T3 phosphorylation, and cell cycle regulators to ensure accurate chromosome segregation during oogenesis.
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Affiliation(s)
- Nuria Ferrandiz
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Consuelo Barroso
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Oana Telecan
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Nan Shao
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Hyun-Min Kim
- Department of Genetics, Harvard Medical School, Boston, MA, 02115, USA
- SPST, Tianjin University, Tianjin, 300072, China
| | - Sarah Testori
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Peter Faull
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
| | - Pedro Cutillas
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
- Barts Cancer Institute, London, EC1M 6BQ, UK
| | - Ambrosius P Snijders
- MRC London Institute of Medical Sciences, Imperial College London, London, W12 0NN, UK
- The Francis Crick Institute, London, NW1 1AT, UK
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29
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Sherr CJ, Sicinski P. The D-Type Cyclins: A Historical Perspective. D-TYPE CYCLINS AND CANCER 2018. [DOI: 10.1007/978-3-319-64451-6_1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Gao CL, Wang GW, Yang GQ, Yang H, Zhuang L. Karyopherin subunit-α 2 expression accelerates cell cycle progression by upregulating CCNB2 and CDK1 in hepatocellular carcinoma. Oncol Lett 2017; 15:2815-2820. [PMID: 29435009 PMCID: PMC5778818 DOI: 10.3892/ol.2017.7691] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/20/2017] [Indexed: 12/15/2022] Open
Abstract
Different types of cancer exhibit distinct gene expression profiles. The present study aimed to identify a specific gene dysregulated in hepatocellular carcinoma (HCC) that was essential for cancer progression. The whole transcriptomes of primary HCC tissue samples were analyzed with microarrays. The most significantly differentially expressed gene was identified, specifically karyopherin subunit-α 2 (KPNA2), and an analysis using the Oncomine online tool was performed with data from The Cancer Genome Atlas to predict associated genes in HCC. Reverse transcription-quantitative polymerase chain reaction was performed to confirm the gene expression levels of KPNA2, and the RNA interference knockdown of KPNA2 was performed to identify the effect on putative downstream target genes. A proliferation assay and flow cytometry analysis was used to assess the function of KPNA2 in the regulation of the cell cycle. The results demonstrated that KPNA2 expression was significantly upregulated in HCC tumor tissues compared with liver tissues and was associated with cyclin B2 (CCNB2) and cyclin-dependent kinase 1 (CDK1) expression. KPNA2 expression was identified a novel marker to predict the outcome of patients. In addition, KPNA2 knockdown downregulated CCNB2 and CDK1, inhibited cell proliferation and induced cell cycle arrest in the G2/M phase. In conclusion, it was demonstrated that KPNA2 may promote tumor cell proliferation by increasing the expression of CCNB2/CDK1. KPNA2 could be a target for therapeutic intervention in HCC.
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Affiliation(s)
- Chun-Lin Gao
- Department of Oncology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Gao-Wei Wang
- Department of Oncology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Guan-Qin Yang
- Department of Oncology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Hong Yang
- Department of Oncology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Li Zhuang
- Department of Oncology, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650118, P.R. China
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Greaney J, Wei Z, Homer H. Regulation of chromosome segregation in oocytes and the cellular basis for female meiotic errors. Hum Reprod Update 2017; 24:135-161. [PMID: 29244163 DOI: 10.1093/humupd/dmx035] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 09/12/2017] [Accepted: 11/26/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Meiotic chromosome segregation in human oocytes is notoriously error-prone, especially with ageing. Such errors markedly reduce the reproductive chances of increasing numbers of women embarking on pregnancy later in life. However, understanding the basis for these errors is hampered by limited access to human oocytes. OBJECTIVE AND RATIONALE Important new discoveries have arisen from molecular analyses of human female recombination and aneuploidy along with high-resolution analyses of human oocyte maturation and mouse models. Here, we review these findings to provide a contemporary picture of the key players choreographing chromosome segregation in mammalian oocytes and the cellular basis for errors. SEARCH METHODS A search of PubMed was conducted using keywords including meiosis, oocytes, recombination, cohesion, cohesin complex, chromosome segregation, kinetochores, spindle, aneuploidy, meiotic cell cycle, spindle assembly checkpoint, anaphase-promoting complex, DNA damage, telomeres, mitochondria, female ageing and female fertility. We extracted papers focusing on mouse and human oocytes that best aligned with the themes of this review and that reported transformative and novel discoveries. OUTCOMES Meiosis incorporates two sequential rounds of chromosome segregation executed by a spindle whose component microtubules bind chromosomes via kinetochores. Cohesion mediated by the cohesin complex holds chromosomes together and should be resolved at the appropriate time, in a specific step-wise manner and in conjunction with meiotically programmed kinetochore behaviour. In women, the stage is set for meiotic error even before birth when female-specific crossover maturation inefficiency leads to the formation of at-risk recombination patterns. In adult life, multiple co-conspiring factors interact with at-risk crossovers to increase the likelihood of mis-segregation. Available evidence support that these factors include, but are not limited to, cohesion deterioration, uncoordinated sister kinetochore behaviour, erroneous microtubule attachments, spindle instability and structural chromosomal defects that impact centromeres and telomeres. Data from mice indicate that cohesin and centromere-specific histones are long-lived proteins in oocytes. Since these proteins are pivotal for chromosome segregation, but lack any obvious renewal pathway, their deterioration with age provides an appealing explanation for at least some of the problems in older oocytes. WIDER IMPLICATIONS Research in the mouse model has identified a number of candidate genes and pathways that are important for chromosome segregation in this species. However, many of these have not yet been investigated in human oocytes so it is uncertain at this stage to what extent they apply to women. The challenge for the future involves applying emerging knowledge of female meiotic molecular regulation towards improving clinical fertility management.
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Affiliation(s)
- Jessica Greaney
- Christopher Chen Oocyte Biology Research Laboratory, Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Royal Brisbane & Women's Hospital Campus, Herston QLD 4029, Australia
| | - Zhe Wei
- Christopher Chen Oocyte Biology Research Laboratory, Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Royal Brisbane & Women's Hospital Campus, Herston QLD 4029, Australia
| | - Hayden Homer
- Christopher Chen Oocyte Biology Research Laboratory, Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Royal Brisbane & Women's Hospital Campus, Herston QLD 4029, Australia
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Chang LC, Hsieh MT, Yang JS, Lu CC, Tsai FJ, Tsao JW, Chiu YJ, Kuo SC, Lee KH. Effect of bis(hydroxymethyl) alkanoate curcuminoid derivative MTH-3 on cell cycle arrest, apoptotic and autophagic pathway in triple-negative breast adenocarcinoma MDA-MB-231 cells: An in vitro study. Int J Oncol 2017; 52:67-76. [PMID: 29138806 PMCID: PMC5743386 DOI: 10.3892/ijo.2017.4204] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/29/2017] [Indexed: 12/27/2022] Open
Abstract
Curcumin has been shown to exert potential antitumor activity in vitro and in vivo involved in multiple signaling pathways. However, the application of curcumin is still limited because of its poor hydrophilicity and low bio-availability. In the present study, we investigated the therapeutic effects of a novel and water soluble bis(hydroxymethyl) alkanoate curcuminoid derivative, MTH-3, on human breast adenocarcinoma MDA-MB-231 cells. This study investigated the effect of MTH-3 on cell viability, cell cycle and induction of autophagy and apoptosis in MDA-MB-231 cells. After 24-h treatment with MTH-3, a concentration-dependent decrease in MDA-MB-231 cell viability was observed, and the IC50 value was 5.37±1.22 μM. MTH-3 significantly triggered G2/M phase arrest and apoptosis in MDA-MB-231 cells. Within a 24-h treatment, MTH-3 decreased the CDK1 activity by decreasing CDK1 and cyclin B1 protein levels. MTH-3-induced apoptosis was further confirmed by morphological assessment and Annexin V/PI staining assay. Induction of apoptosis caused by MTH-3 was accompanied by an apparent increase of DR3, DR5 and FADD and, as well as a marked decrease of Bcl-2 and Bcl-xL protein expression. MTH-3 also decreased the protein levels of Ero1, PDI, PERK and calnexin, as well as increased the expression of IRE1α, CHOP and Bip that consequently led to ER stress and MDA-MB-231 cell apoptosis. In addition, MTH-3-treated cells were involved in the autophagic process and cleavage of LC3B was observed. MTH-3 enhanced the protein levels of LC3B, Atg5, Atg7, Atg12, p62 and Beclin-1 in MDA-MB-231 cells. Finally, DNA microarray was carried out to investigate the level changes of gene expression modulated by MTH-3 in MDA-MB-231 cells. Taken together, our results suggest that MTH-3 might be a novel therapeutic agent for the treatment of triple-negative breast cancer in the near future.
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Affiliation(s)
- Ling-Chu Chang
- Chinese Medicinal Research and Development Center, China Medical University Hospital, Taichung 404, R.O.C
| | - Min-Tsang Hsieh
- Chinese Medicinal Research and Development Center, China Medical University Hospital, Taichung 404, R.O.C
| | - Jai-Sing Yang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, R.O.C
| | - Chi-Cheng Lu
- Department of Pharmacy, Buddhist Tzu Chi General Hospital, Hualien 970, Taiwan, R.O.C
| | - Fuu-Jen Tsai
- Human Genetic Center, China Medical University Hospital, Taichung 404, R.O.C
| | - Je-Wei Tsao
- School of Pharmacy, China Medical University, Taichung 404, R.O.C
| | - Yu-Jen Chiu
- Division of Reconstructive and Plastic Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan, R.O.C
| | - Sheng-Chu Kuo
- Chinese Medicinal Research and Development Center, China Medical University Hospital, Taichung 404, R.O.C
| | - Kuo-Hsiung Lee
- Chinese Medicinal Research and Development Center, China Medical University Hospital, Taichung 404, R.O.C
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Schaefer-Ramadan S, Hubrack S, Machaca K. Transition metal dependent regulation of the signal transduction cascade driving oocyte meiosis. J Cell Physiol 2017; 233:3164-3175. [DOI: 10.1002/jcp.26157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 08/14/2017] [Indexed: 12/19/2022]
Affiliation(s)
| | - Satanay Hubrack
- Department of Physiology and Biophysics; Weill Cornell Medicine-Qatar; Doha Qatar
| | - Khaled Machaca
- Department of Physiology and Biophysics; Weill Cornell Medicine-Qatar; Doha Qatar
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34
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Kim HJ, Lee SY, Lee HS, Kim EY, Ko JJ, Lee KA. Zap70 and downstream RanBP2 are required for the exact timing of the meiotic cell cycle in oocytes. Cell Cycle 2017; 16:1534-1546. [PMID: 28745977 DOI: 10.1080/15384101.2017.1339847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
In previous studies, we observed that Zeta-chain-associated protein kinase 70 (Zap70) regulates spindle assembly and chromosome alignment in mouse oocyte and that Ran binding protein 2 (RanBP2) is a highly associated gene with Zap70 based on a microarray analysis. Because RanBP2 is related to nuclear envelope breakdown (NEBD) during mitosis, the aim of the present study was to elucidate the molecular mechanism of Zap70 with respect to RanBP2 in the germinal vesicle breakdown (GVBD) of oocytes. Results indicated that RanBP2 expression was regulated by Zap70 and that depletion of RanBP2 using RanBP2 RNAi manifested comparable phenotypes to those observed in Zap70 RNAi-treated oocytes, which presented faster processing of GVBD. Additionally, Zap70 RNAi-treated oocytes showed faster meiotic resumption with premature activation of maturation-promoting factor (MPF), premature division of chromosomes at approximately 6-8 h and more rapid degradation of securin. In conclusion, we report that Zap70 is a crucial factor for controlling the exact timing of meiotic progression in mouse oocytes.
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Affiliation(s)
- Hyun-Jung Kim
- a Fertility Center of CHA Gangnam Medical Center , College of Medicine, CHA University , Seoul , Korea
| | - Su-Yeon Lee
- b Institute of Reproductive Medicine , Department of Biomedical Science, College of Life Science, CHA University , Pan-Gyo , Korea
| | - Hyun-Seo Lee
- c Research Center for Cancer Immunotherapy , Chonnam National University Hwasun Hospital , Jeollanam-do , Korea
| | - Eun-Young Kim
- b Institute of Reproductive Medicine , Department of Biomedical Science, College of Life Science, CHA University , Pan-Gyo , Korea
| | - Jung-Jae Ko
- b Institute of Reproductive Medicine , Department of Biomedical Science, College of Life Science, CHA University , Pan-Gyo , Korea
| | - Kyung-Ah Lee
- b Institute of Reproductive Medicine , Department of Biomedical Science, College of Life Science, CHA University , Pan-Gyo , Korea
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35
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Yoon S, Kawasaki I, Shim YH. The B-type cyclin CYB-1 maintains the proper position and number of centrosomes during spermatogenesis in Caenorhabditis elegans. J Cell Sci 2017; 130:2722-2735. [PMID: 28705837 DOI: 10.1242/jcs.204578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/06/2017] [Indexed: 01/22/2023] Open
Abstract
Depletion of cyb-1, a major B-type cyclin expressed during Caenorhabditis elegans spermatogenesis, causes a meiotic division arrest in diakinesis-stage spermatocytes with multiple and mispositioned centrosomes. Association of the two nuclear membrane proteins SUN-1 and ZYG-12 is essential for centrosome-nuclear envelope attachment. We found that depletion of sun-1 causes centrosome defects similar to those caused by cyb-1 depletion in diakinesis-stage spermatocytes. In addition, Ser8 and Ser43 residues in SUN-1 are dephosphorylated in cyb-1-depleted diakinesis-stage spermatocytes. Nevertheless, dephosphorylation of these residues was not sufficient to reproduce the cyb-1-related centrosome defects. We then found that the ZYG-12::GFP signal in the nuclear envelope was significantly reduced in the cyb-1-depleted diakinesis-stage spermatocytes. However, only mispositioned but not multiplied centrosomes were observed in zyg-12 mutant diakinesis-stage spermatocytes, suggesting that zyg-12 is not involved in the centrosome duplication at this stage. Our results suggest that CYB-1 functions to maintain proper positioning of centrosomes during spermatogenesis by regulating phosphorylation of SUN-1, which is possibly crucial for the association between SUN-1 and ZYG-12. This phosphorylation of SUN-1 may also regulate centrosome duplication independently of ZYG-12.
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Affiliation(s)
- Sunghee Yoon
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Ichiro Kawasaki
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
| | - Yhong-Hee Shim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Republic of Korea
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36
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Chikashige Y, Yamane M, Okamasa K, Osakada H, Tsutsumi C, Nagahama Y, Fukuta N, Haraguchi T, Hiraoka Y. Fission yeast APC/C activators Slp1 and Fzr1 sequentially trigger two consecutive nuclear divisions during meiosis. FEBS Lett 2017; 591:1029-1040. [PMID: 28245054 DOI: 10.1002/1873-3468.12612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/22/2017] [Accepted: 02/24/2017] [Indexed: 01/05/2023]
Abstract
In meiosis, two rounds of nuclear division occur consecutively without DNA replication between the divisions. We isolated a fission yeast mutant in which the nucleus divides only once to generate two spores, as opposed to four, in meiosis. In this mutant, we found that the initiation codon of the slp1+ gene is converted to ATA, producing a reduced amount of Slp1. As a member of the Fizzy family of anaphase-promoting complex/cyclosome (APC/C) activators, Slp1 is essential for vegetative growth; however, the mutant allele shows a phenotype only in meiosis. Slp1 insufficiency delays degradation of maturation-promoting factor at the first meiotic division, and another APC/C activator, Fzr1, which acts late in meiosis, terminates meiosis immediately after the delayed first division to produce two viable spores.
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Affiliation(s)
- Yuji Chikashige
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Miho Yamane
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Kasumi Okamasa
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Hiroko Osakada
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Chihiro Tsutsumi
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Yuki Nagahama
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Noriko Fukuta
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan
| | - Tokuko Haraguchi
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
| | - Yasushi Hiraoka
- Advanced ICT Research Institute Kobe, National Institute of Information and Communications Technology, Kobe, Japan.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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37
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Cary GA, Hinman VF. Echinoderm development and evolution in the post-genomic era. Dev Biol 2017; 427:203-211. [PMID: 28185788 DOI: 10.1016/j.ydbio.2017.02.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 02/04/2017] [Accepted: 02/06/2017] [Indexed: 01/01/2023]
Abstract
The highly recognizable animals within the phylum Echinodermata encompass an enormous disparity of adult and larval body plans. The extensive knowledge of sea urchin development has culminated in the description of the exquisitely detailed gene regulatory network (GRN) that governs the specification of various embryonic territories. This information provides a unique opportunity for comparative studies in other echinoderm taxa to understand the evolution and developmental mechanisms underlying body plan change. This review focuses on recent work that has utilized new genomic resources and systems-level experiments to address questions of evolutionary developmental biology. In particular, we synthesize the results of several recent studies from various echinoderm classes that have explored the development and evolution of the larval skeleton, which is a major feature that distinguishes the two predominant larval subtypes within the Phylum. We specifically examine the ways in which GRNs can evolve, either through cis regulatory and/or protein-level changes in transcription factors. We also examine recent work comparing evolution across shorter time scales that occur within and between species of sea urchin, and highlight the kinds of questions that can be addressed by these comparisons. The advent of new genomic and transcriptomic datasets in additional species from all classes of echinoderm will continue to empower the use of these taxa for evolutionary developmental studies.
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Affiliation(s)
- Gregory A Cary
- Department of Biological Sciences, Carnegie Mellon University, Mellon Institute, 4400 Fifth Ave, Pittsburgh, PA 15213, United States
| | - Veronica F Hinman
- Department of Biological Sciences, Carnegie Mellon University, Mellon Institute, 4400 Fifth Ave, Pittsburgh, PA 15213, United States.
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38
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Zhang T, Zhou Y, Li L, Wang ZB, Shen W, Schatten H, Sun QY. CenpH regulates meiotic G2/M transition by modulating the APC/CCdh1-cyclin B1 pathway in oocytes. Development 2016; 144:305-312. [PMID: 27993978 PMCID: PMC5394759 DOI: 10.1242/dev.141135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/25/2016] [Indexed: 12/24/2022]
Abstract
Meiotic resumption (G2/M transition) and progression through meiosis I (MI) are two key stages for producing fertilization-competent eggs. Here, we report that CenpH, a component of the kinetochore inner plate, is responsible for G2/M transition in meiotic mouse oocytes. Depletion of CenpH by morpholino injection decreased cyclin B1 levels, resulting in attenuation of maturation-promoting factor (MPF) activation, and severely compromised meiotic resumption. CenpH protects cyclin B1 from destruction by competing with the action of APC/CCdh1. Impaired G2/M transition after CenpH depletion could be rescued by expression of exogenous cyclin B1. Unexpectedly, blocking CenpH did not affect spindle organization and meiotic cell cycle progression after germinal vesicle breakdown. Our findings reveal a novel role of CenpH in regulating meiotic G2/M transition by acting via the APC/CCdh1-cyclin B1 pathway. Summary: CenpH, a component of the kinetochore inner plate protein, is necessary for cyclin B1 stabilization and is responsible for the G2/M transition in meiotic mouse oocytes.
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Affiliation(s)
- Teng Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Institute of Reproductive Sciences, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Yang Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Li Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.,Department of Reproductive Medicine, Guangdong Women and Children Hospital, Guangzhou 510010, China
| | - Zhen-Bo Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wei Shen
- Institute of Reproductive Sciences, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Heide Schatten
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO 65211, USA
| | - Qing-Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China .,Institute of Reproductive Sciences, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.,University of the Chinese Academy of Sciences, Beijing 100049, China
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39
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Chuang TY, Min J, Wu HL, McCrary C, Layman LC, Diamond MP, Azziz R, Al-Hendy A, Chen YH. Berberine Inhibits Uterine Leiomyoma Cell Proliferation via Downregulation of Cyclooxygenase 2 and Pituitary Tumor-Transforming Gene 1. Reprod Sci 2016; 24:1005-1013. [DOI: 10.1177/1933719116675055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Tung-Yueh Chuang
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Jie Min
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hsiao-Li Wu
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Cristina McCrary
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Lawrence C. Layman
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Michael P. Diamond
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Ricardo Azziz
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Ayman Al-Hendy
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
| | - Yen-Hao Chen
- Department of Obstetrics/Gynecology, Augusta University, Augusta, GA, USA
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40
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Zhu A, Chen M, Zhang X, Storey KB. Gene structure, expression, and DNA methylation characteristics of sea cucumber cyclin B gene during aestivation. Gene 2016; 594:82-88. [PMID: 27601256 DOI: 10.1016/j.gene.2016.09.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/30/2016] [Accepted: 09/02/2016] [Indexed: 10/21/2022]
Abstract
The sea cucumber, Apostichopus japonicus, is a good model for studying environmentally-induced aestivation by a marine invertebrate. One of the central requirements of aestivation is the repression of energy-expensive cellular processes such as cell cycle progression. The present study identified the gene structure of the cell cycle regulator, cyclin B, and detected the expression levels of this gene over three stages of the annual aestivation-arousal cycle. Furthermore, the DNA methylation characteristics of cyclin B were analyzed in non-aestivation and deep-aestivation stages of sea cucumbers. We found that the cyclin B promoter contains a CpG island, three CCAAT-boxes and three cell cycle gene homology regions (CHRs). Application of qRT-PCR analysis showed significant downregulation of cyclin B transcript levels during deep-aestivation in comparison with non-aestivation in both intestine and longitudinal muscle, and these returned to basal levels after arousal from aestivation. Methylation analysis of the cyclin B core promoter revealed that its methylation level showed significant differences between non-aestivation and deep-aestivation stages (p<0.05) and interestingly, a positive correlation between Cyclin B transcripts expression and methylation levels of the core promoter was also observed. Our findings suggest that cell cycle progression may be reversibly arrested during aestivation as indicated by the changes in cyclin B expression levels and we propose that DNA methylation is one of the regulatory mechanisms involved in cyclin B transcriptional variation.
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Affiliation(s)
- Aijun Zhu
- Fisheries College, Ocean University of China, Qingdao, PR China; The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Muyan Chen
- Fisheries College, Ocean University of China, Qingdao, PR China; The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China.
| | - Xiumei Zhang
- Fisheries College, Ocean University of China, Qingdao, PR China; The Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, PR China
| | - Kenneth B Storey
- Institute of Biochemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada
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41
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Hua K, Jin J, Zhang H, Zhao B, Wu C, Xu H, Fang L. MicroRNA-7 inhibits proliferation, migration and invasion of thyroid papillary cancer cells via targeting CKS2. Int J Oncol 2016; 49:1531-1540. [DOI: 10.3892/ijo.2016.3660] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/05/2016] [Indexed: 11/05/2022] Open
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42
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Huang HL, Chao MW, Chen CC, Cheng CC, Chen MC, Lin CF, Liou JP, Teng CM, Pan SL. LTP-1, a novel antimitotic agent and Stat3 inhibitor, inhibits human pancreatic carcinomas in vitro and in vivo. Sci Rep 2016; 6:27794. [PMID: 27278358 PMCID: PMC4899784 DOI: 10.1038/srep27794] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 05/23/2016] [Indexed: 01/05/2023] Open
Abstract
Pancreatic cancer is the leading cause of cancer death worldwide with a poor survival rate. The objective of this study was to determine the mechanism of action of a novel antimitotic and Stat3 inhibitor, LTP-1, on human pancreatic cancer in vitro and in vivo. We found that LTP-1 inhibited pancreatic cancer cell growth and viability with significant G2/M arrest and disruption of microtubule dynamics. LTP-1 also caused G2/M arrest-independent Stat3 dephosphorylation along with ERK activation, which indicated the possible dual function of LTP-1. Long-term treatment of LTP-1 also induced polyploidy, activated caspases, induced subG1 cell population, and therefore, triggered pancreatic cancer cell apoptosis. Finally, we used an in vivo xenograft model to demonstrate that LTP-1 suppressed the growth of pancreatic adenocarcinoma. In summary, our data suggest that LTP-1 may alter microtubule dynamics, which ultimately causes polyploidy and apoptosis, thereby inhibiting pancreatic cancer growth in vitro and in vivo. This study provides evidence that LTP-1 could be a potential therapeutic agent for further development of pancreatic cancer treatment.
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Affiliation(s)
- Han-Li Huang
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Min-Wu Chao
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chung-Chun Chen
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chun-Chun Cheng
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Mei-Chuan Chen
- Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Chao-Feng Lin
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Department of Internal Medicine, Division of Cardiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jing-Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Che-Ming Teng
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shiow-Lin Pan
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Department of Pharmacology, College of Medicine, Taipei Medical University, Taipei, Taiwan
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43
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ZHANG ZHIGUO, SONG CHANGHENG, ZHANG FANGZHEN, CHEN YANJING, XIANG LIHUA, XIAO GARYGUISHAN, JU DAHONG. Rhizoma Dioscoreae extract protects against alveolar bone loss by regulating the cell cycle: A predictive study based on the protein-protein interaction network. Mol Med Rep 2016; 13:5342-8. [DOI: 10.3892/mmr.2016.5188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 02/02/2016] [Indexed: 11/05/2022] Open
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Abstract
Uncontrolled cellular proliferation, mediated by dysregulation of the cell-cycle machinery and activation of cyclin-dependent kinases (CDKs) to promote cell-cycle progression, lies at the heart of cancer as a pathological process. Clinical implementation of first-generation, nonselective CDK inhibitors, designed to inhibit this proliferation, was originally hampered by the high risk of toxicity and lack of efficacy noted with these agents. The emergence of a new generation of selective CDK4/6 inhibitors, including ribociclib, abemaciclib and palbociclib, has enabled tumour types in which CDK4/6 has a pivotal role in the G1-to-S-phase cell-cycle transition to be targeted with improved effectiveness, and fewer adverse effects. Results of pivotal phase III trials investigating palbociclib in patients with advanced-stage oestrogen receptor (ER)-positive breast cancer have demonstrated a substantial improvement in progression-free survival, with a well-tolerated toxicity profile. Mechanisms of acquired resistance to CDK4/6 inhibitors are beginning to emerge that, although unwelcome, might enable rational post-CDK4/6 inhibitor therapeutic strategies to be identified. Extending the use of CDK4/6 inhibitors beyond ER-positive breast cancer is challenging, and will likely require biomarkers that are predictive of a response, and the use of combination therapies in order to optimize CDK4/6 targeting.
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Affiliation(s)
- Ben O'Leary
- The Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, Fulham Road, London SW3 6JB, UK
| | - Richard S Finn
- Division of Haematology/Oncology, Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA
| | - Nicholas C Turner
- The Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, Fulham Road, London SW3 6JB, UK.,Breast Unit, Royal Marsden Hospital, Fulham Road, London SW3 6JJ, UK
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45
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Cook CE, Chenevert J, Larsson TA, Arendt D, Houliston E, Lénárt P. Old knowledge and new technologies allow rapid development of model organisms. Mol Biol Cell 2016; 27:882-7. [PMID: 26976934 PMCID: PMC4791132 DOI: 10.1091/mbc.e15-10-0682] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/08/2016] [Accepted: 01/13/2016] [Indexed: 12/01/2022] Open
Abstract
Until recently the set of "model" species used commonly for cell biology was limited to a small number of well-understood organisms, and developing a new model was prohibitively expensive or time-consuming. With the current rapid advances in technology, in particular low-cost high-throughput sequencing, it is now possible to develop molecular resources fairly rapidly. Wider sampling of biological diversity can only accelerate progress in addressing cellular mechanisms and shed light on how they are adapted to varied physiological contexts. Here we illustrate how historical knowledge and new technologies can reveal the potential of nonconventional organisms, and we suggest guidelines for selecting new experimental models. We also present examples of nonstandard marine metazoan model species that have made important contributions to our understanding of biological processes.
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Affiliation(s)
- Charles E Cook
- European Bioinformatics Institute, European Molecular Biology Laboratory, Wellcome Genome Campus, Hinxton CB10 1SD, United Kingdom
| | - Janet Chenevert
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer, 06230 Villefranche-sur-mer, France
| | - Tomas A Larsson
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Detlev Arendt
- Developmental Biology Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
| | - Evelyn Houliston
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer, 06230 Villefranche-sur-mer, France
| | - Péter Lénárt
- Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany
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46
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Lewis CW, Taylor RG, Golsteyn RM. Measurement of Cdk1/Cyclin B Kinase Activity by Specific Antibodies and Western Blotting. Methods Mol Biol 2016; 1342:337-348. [PMID: 26254935 DOI: 10.1007/978-1-4939-2957-3_21] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Quantitative measurement of enzyme activity is a valuable approach to study how cells function. We present a method to measure the activity of the enzyme Cdk1/cyclin B. This enzyme is required by all eukaryotic cells to enter mitosis. Therefore, a biochemical assay to measure Cdk1/cyclin B activity can be used to identify cell populations that are in mitosis or to detect inhibitors of Cdk1/Cyclin B in vitro. A key distinction of the method presented here, compared to others, is that it uses a recombinant protein, a specific antibody, and a western blot apparatus, which makes the technique available to cell and molecular biology laboratories who do not wish to use radioisotopes, which are commonly required for other protein kinase assays.
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Affiliation(s)
- Cody W Lewis
- Cancer Cell Laboratory, Department of Biological Sciences, University of Lethbridge, 4401 University Drive, Lethbridge, AB, Canada, T1K 3M4
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47
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Hong F, Zhao X, Si W, Ze Y, Wang L, Zhou Y, Hong J, Yu X, Sheng L, Liu D, Xu B, Zhang J. Decreased spermatogenesis led to alterations of testis-specific gene expression in male mice following nano-TiO2 exposure. JOURNAL OF HAZARDOUS MATERIALS 2015; 300:718-728. [PMID: 26296075 DOI: 10.1016/j.jhazmat.2015.08.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 05/28/2023]
Abstract
Although TiO2 nanoparticles (NPs) exposure has been demonstrated to cross blood-testis barrier and accumulate in the testis resulting in the reduction of sperm numbers, limited data with respect to the molecular mechanism of decreased spermatogenesis caused by TiO2 NP exposure. In this research, testicular damage, sperm number and alterations in testis-specific gene expressions in male mice induced by intragastric administration with TiO2 NPs for six months were investigated. It was found out that TiO2 NPs could migrate to cells, deposit in the testis and epididymis and thus cause damages to relevant organs, which are, to be more specific, the reductions of total sperm concentrations and sperm motility and an enhancement in the number of abnormal sperms in the cauda epididymis. Furthermore, the individual expression regarding to the mRNAs and proteins of testis-specific genes, including Cdc2, Cyclin B1, Dmcl, TERT, Tesmin, TESP-1, XPD and XRCCI, were significantly declined, whereas Gsk3-β and PGAM4 expressions were greatly elevated in mouse testis due to the exposures, which in fact implied that the reduced spermatogenesis may be involved in the alternated testis-specific gene expressions in those exposed male mice.
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Affiliation(s)
- Fashui Hong
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China; Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China; School of Life Sciences, Huaiyin Normal University, Huaian 223300, China.
| | - Xiaoyang Zhao
- Medical College of Soochow University, Suzhou 215123, China
| | - Wenhui Si
- Key Laboratory of Agricultural and Animal Products Processing and Quality Control, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China; Suzhou Polytechnic Institute of Agriculture, Suzhou 215008, China
| | - Yuguan Ze
- Medical College of Soochow University, Suzhou 215123, China
| | - Ling Wang
- Library of Soochow University, Suzhou 215123, China
| | - Yingjun Zhou
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China; Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China; School of Life Sciences, Huaiyin Normal University, Huaian 223300, China
| | - Jie Hong
- Medical College of Soochow University, Suzhou 215123, China
| | - Xiaohong Yu
- Medical College of Soochow University, Suzhou 215123, China
| | - Lei Sheng
- Medical College of Soochow University, Suzhou 215123, China
| | - Dong Liu
- Medical College of Soochow University, Suzhou 215123, China
| | - Bingqing Xu
- Medical College of Soochow University, Suzhou 215123, China
| | - Jianhao Zhang
- Key Laboratory of Agricultural and Animal Products Processing and Quality Control, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China.
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LSD1 is essential for oocyte meiotic progression by regulating CDC25B expression in mice. Nat Commun 2015; 6:10116. [PMID: 26626423 PMCID: PMC4686821 DOI: 10.1038/ncomms10116] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 11/04/2015] [Indexed: 12/13/2022] Open
Abstract
Mammalian oocytes are arrested at prophase I until puberty when hormonal signals induce the resumption of meiosis I and progression to meiosis II. Meiotic progression is controlled by CDK1 activity and is accompanied by dynamic epigenetic changes. Although the signalling pathways regulating CDK1 activity are well defined, the functional significance of epigenetic changes remains largely unknown. Here we show that LSD1, a lysine demethylase, regulates histone H3 lysine 4 di-methylation (H3K4me2) in mouse oocytes and is essential for meiotic progression. Conditional deletion of Lsd1 in growing oocytes results in precocious resumption of meiosis and spindle and chromosomal abnormalities. Consequently, most Lsd1-null oocytes fail to complete meiosis I and undergo apoptosis. Mechanistically, upregulation of CDC25B, a phosphatase that activates CDK1, is responsible for precocious meiotic resumption and also contributes to subsequent spindle and chromosomal defects. Our findings uncover a functional link between LSD1 and the major signalling pathway governing meiotic progression.
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Kishimoto T. Entry into mitosis: a solution to the decades-long enigma of MPF. Chromosoma 2015; 124:417-28. [PMID: 25712366 PMCID: PMC4666901 DOI: 10.1007/s00412-015-0508-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 01/29/2015] [Accepted: 01/30/2015] [Indexed: 01/21/2023]
Abstract
Maturation or M phase-promoting factor (MPF) is the universal inducer of M phase common to eukaryotic cells. MPF was originally defined as a transferable activity that can induce the G2/M phase transition in recipient cells. Today, however, MPF is assumed to describe an activity that exhibits its effect in donor cells, and furthermore, MPF is consistently equated with the kinase cyclin B-Cdk1. In some conditions, however, MPF, as originally defined, is undetectable even though cyclin B-Cdk1 is fully active. For over three decades, this inconsistency has remained a long-standing puzzle. The enigma is now resolved through the elucidation that MPF, defined as an activity that exhibits its effect in recipient cells, consists of at least two separate kinases, cyclin B-Cdk1 and Greatwall (Gwl). Involvement of Gwl in MPF can be explained by its contribution to the autoregulatory activation of cyclin B-Cdk1 and by its stabilization of phosphorylations on cyclin B-Cdk1 substrates, both of which are essential when MPF induces the G2/M phase transition in recipient cells. To accomplish these tasks, Gwl helps cyclin B-Cdk1 by suppressing protein phosphatase 2A (PP2A)-B55 that counteracts cyclin B-Cdk1. MPF, as originally defined, is thus not synonymous with cyclin B-Cdk1, but is instead a system consisting of both cyclin B-Cdk1 that directs mitotic entry and Gwl that suppresses the anti-cyclin B-Cdk1 phosphatase. The current view that MPF is a synonym for cyclin B-Cdk1 in donor cells is thus imprecise; instead, MPF is best regarded as the entire pathway involved in the autoregulatory activation of cyclin B-Cdk1, with specifics depending on the experimental system.
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Affiliation(s)
- Takeo Kishimoto
- Laboratory of Cell and Developmental Biology, Graduate School of Bioscience, Tokyo Institute of Technology, Yokohama, 226-8501, Japan.
- Science and Education Center, Ochanomizu University, Ootsuka 2-1-1, Bunkyo-ku, Tokyo, 112-8610, Japan.
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50
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Yang H, Yin P, Shi Z, Ma Y, Zhao C, Zheng J, Chen T. Sinomenine, a COX-2 inhibitor, induces cell cycle arrest and inhibits growth of human colon carcinoma cells in vitro and in vivo. Oncol Lett 2015; 11:411-418. [PMID: 26870226 DOI: 10.3892/ol.2015.3838] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 09/22/2015] [Indexed: 11/06/2022] Open
Abstract
Certain non-steroidal anti-inflammatory drugs may possess anti-tumorigenic effects in certain cancer cell types. Sinomenine (SIN) is an alkaloid from Sinomenium acutum, a Chinese medicinal plant that inhibits inflammatory reactions and that has been used in the treatment of neuralgia and rheumatic diseases. In this study, we investigated the anticancer effects of SIN against colorectal cancer in vitro and in vivo, as well as the underlying mechanisms. The effects of SIN on proliferation, cell cycle progression and cyclooxygenase (COX)-2 expression were examined in human colorectal cancer-derived SW1116 cells. The in vivo effects of SIN were examined in a model of SW1116 tumor xenograft growth in athymic nude mice. Changes in COX-2 expression induced by the biological effects of SIN were analyzed by western blot analysis. The effects of SIN treatment on G1 phase cell cycle regulators in xenografts were analyzed by immunohistochemistry. Our findings demonstrate that SIN inhibits the proliferation of SW1116 cells by promoting their accumulation in the G1 phase, with concomitant suppression of COX-2 expression. Time- and dose-dependent inhibition of tumor growth and reduced toxicity were observed in nude mice administered daily intraperitoneal injections of SIN at doses of 25, 50 and 100 mg/kg. SIN-treated tumors also exhibited reduced COX-2 expression, a marked increase in Cip1/p21 protein levels and a decrease in the levels of cyclin D1 and cyclin E. SIN may be an effective chemopreventive agent against colorectal cancer. The growth inhibitory properties of SIN against colorectal cancer may be mediated via a COX-2 inhibitory effect and cell cycle arrest in the G1 phase.
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Affiliation(s)
- Haibo Yang
- Department of Colorectal Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Peihao Yin
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Zhan Shi
- Department of Colorectal Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Yanchun Ma
- Experimental Center, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Chenggen Zhao
- Department of Oncology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Jampu Zheng
- Experimental Center, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
| | - Teng Chen
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, P.R. China
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