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Chen X, Zhang J, Yuan L, Lay Y, Wong YK, Lim TK, Ong CS, Lin Q, Wang J, Hua Z. Andrographolide Suppresses MV4-11 Cell Proliferation through the Inhibition of FLT3 Signaling, Fatty Acid Synthesis and Cellular Iron Uptake. Molecules 2017; 22:molecules22091444. [PMID: 28858244 PMCID: PMC6151431 DOI: 10.3390/molecules22091444] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 12/28/2022] Open
Abstract
Background: Andrographolide (ADR), the main active component of Andrographis paniculata, displays anticancer activity in various cancer cell lines, among which leukemia cell lines exhibit the highest sensitivity to ADR. In particular, ADR was also reported to have reduced drug resistance in multidrug resistant cell lines. However, the mechanism of action (MOA) of ADR’s anticancer and anti-drug-resistance activities remain elusive. Methods: In this study, we used the MV4-11 cell line, a FLT3 positive acute myeloid leukemia (AML) cell line that displays multidrug resistance, as our experimental system. We first evaluated the effect of ADR on MV4-11 cell proliferation. Then, a quantitative proteomics approach was applied to identify differentially expressed proteins in ADR-treated MV4-11 cells. Finally, cellular processes and signal pathways affected by ADR in MV4-11 cell were predicted with proteomic analysis and validated with in vitro assays. Results: ADR inhibits MV4-11 cell proliferation in a dose- and time-dependent manner. With a proteomic approach, we discovered that ADR inhibited fatty acid synthesis, cellular iron uptake and FLT3 signaling pathway in MV4-11 cells. Conclusions: ADR inhibits MV4-11 cell proliferation through inhibition of fatty acid synthesis, iron uptake and protein synthesis. Furthermore, ADR reduces drug resistance by blocking FLT3 signaling.
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Affiliation(s)
- Xiao Chen
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China.
| | - Jianbin Zhang
- Department of Oncology, Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China.
| | - Lixia Yuan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
| | - Yifei Lay
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
| | - Yin Kwan Wong
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
| | - Teck Kwang Lim
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
| | - Chye Sun Ong
- Institute of Mental Health, Education Office, Singapore 539747, Singapore.
| | - Qingsong Lin
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
| | - Jigang Wang
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
- Changzhou High-Tech Research Institute of Nanjing University, Institute of Biotechnology, Jiangsu Industrial Technology Research Institute and Jiangsu Target Pharma Laboratories Inc., Changzhou 213164, China.
| | - Zichun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China.
- Changzhou High-Tech Research Institute of Nanjing University, Institute of Biotechnology, Jiangsu Industrial Technology Research Institute and Jiangsu Target Pharma Laboratories Inc., Changzhou 213164, China.
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Crowe EP, Nacarelli T, Bitto A, Lerner C, Sell C, Torres C. Detecting senescence: methods and approaches. Methods Mol Biol 2014; 1170:425-45. [PMID: 24906328 DOI: 10.1007/978-1-4939-0888-2_23] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The detection of senescent cells has become an important area of research in the aging field. Due to the complexity of the senescence program and the lack of a unique signature for senescence, the detection of these cells remains problematic. This is especially true for in vivo detection in aged or diseased tissue samples. This chapter outlines approaches for the detection of senescent cells based upon methods established for mesenchymal cells in culture. A stepwise approach to the detection of senescent cells using multiple techniques is provided.
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Affiliation(s)
- Elizabeth P Crowe
- Department of Pathology, Drexel University College of Medicine, 245 N. 15th Street, MS 435, Philadelphia, PA, 19102, USA
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Affiliation(s)
- Frank M Torti
- Department of Cancer Biology and Biochemistry and the Comprehensive Cancer Center, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
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Abstract
Werner's syndrome (WS) is an inherited disease with clinical symptoms which resemble premature aging. The Werner's syndrome gene (WRN), which is located on human chromosome 8p12, encodes a predicted protein of 1432 amino acids and shows significant similarity to DNA helicases. We have cloned the full-length mouse cDNA homologue of the human WRN gene encoding a predicted protein of 1320 amino acids and have obtained a full-length 70 kb genomic clone containing the moWRN gene. This gene has been mapped to chromosome 8A3 in mice. The expression of the moWRN gene was increased during apoptosis after IL-2 deprivation, and decreased in the spleen of aged mice. Lymphoid cells isolated from a patient with WS exhibited increased apoptosis after incubation with anti-Fas but not after incubation with the topoisomerase inhibitor VP16. RNase protection reviled dysregulation of the ICE family of apoptosis molecules in the WS cell line. These results indicate that the WS helicase is involved in certain pathways of apoptosis, and defective WS gene expression leads to accumulation of cells that are highly susceptibility to Fas-induced apoptosis.
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Affiliation(s)
- J Wu
- University of Alabama at Birmingham, Birmingham Veterans Administration Medical Center, 35294-0007, USA
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Camoretti-Mercado B, Forsythe SM, LeBeau MM, Espinosa R, Vieira JE, Halayko AJ, Willadsen S, Kurtz B, Ober C, Evans GA, Thweatt R, Shapiro S, Niu Q, Qin Y, Padrid PA, Solway J. Expression and cytogenetic localization of the human SM22 gene (TAGLN). Genomics 1998; 49:452-7. [PMID: 9615232 DOI: 10.1006/geno.1998.5267] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
SM22 is a 22-kDa protein identified variously as SM22, transgelin, WS3-10, or mouse p27. Though its precise function is unknown, it is abundant in smooth muscle and so may contribute to the physiology of this widespread tissue. We found that cosmid 16b6 contains the entire 5.4-kb, five-exon human SM22 gene (HGMW-approved symbol, TAGLN), and we cytogenetically localized the gene to chromosome 11q23.2. Northern analysis of human adult tissues showed that SM22 mRNA is most prevalent in smooth muscle-containing tissues, but is also found at lower levels in heart. The human SM22 promoter contains nuclear factor-binding motifs known to regulate transcription in smooth muscle, and human SM22 promoter-luciferase reporter constructs exhibited high transcriptional activity in A7r5 or primary canine aortic smooth muscle cells, but show little activity in nonmuscle COS7 cells. In addition, human SM22 promoter activity increased by two- to threefold upon serum stimulation of nonmuscle cells.
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Mountz JD, Wu J, Zhou T, Hsu HC. Cell death and longevity: implications of Fas-mediated apoptosis in T-cell senescence. Immunol Rev 1997; 160:19-30. [PMID: 9476662 DOI: 10.1111/j.1600-065x.1997.tb01024.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Two prominent features of immune senescence are altered T-cell phenotype and reduced T-cell response. We have previously shown that T-cell senescence is greatly reduced in CD2-fas transgenic mice, in which the Fas apoptosis molecule is constantly expressed on T cells. Using a different experimental approach, the relationship between T-cell senescence and apoptosis was analyzed on human peripheral blood mononuclear cells. The results indicate that there was increased apoptosis of CD45RO- (CD45RA+) T cells upon activation. We propose that this could account for the increase in CD45RO+ "memory" T cells with aging in humans. T-cell responsiveness remained high in CD2-fas transgenic aged mice, but there was no increase in overall life span of these mice. Increased T-cell responsiveness was associated with an increased acute-phase response and serum amyloid A deposition in the glomerulus of aged CD2-fas transgenic mice. Therefore, restoration of the T-cell immune function using a CD2-fas transgene produced undesirable side-effects to aged transgenic mice. In addition to its role in activation-induced cell death, Fas-mediated apoptosis may be important in deleting T cells in response to DNA damage. It may also inhibit cell-cycle progression by cleaving various kinases and DNA repair enzymes. We observed that cell lines derived from human premature aging diseases have a higher sensitivity to Fas-mediated apoptosis. The implications of these observations are discussed.
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Affiliation(s)
- J D Mountz
- Department of Medicine, University of Alabama at Birmingham 35294-0007, USA.
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Grymes RA, Sawyer C. A novel culture morphology resulting from applied mechanical strain. In Vitro Cell Dev Biol Anim 1997; 33:392-7. [PMID: 9196899 DOI: 10.1007/s11626-997-0011-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To demonstrate that cells both perceive and respond to external force, a strain/relaxation regimen was applied to normal human fetal and aged dermal fibroblasts cultured as monolayers on flexible membranes. The precisely controlled protocol of stretch (20% elongation of the culture membrane) at 6.67 cycles/min caused a progressive change in the monolayers, such that the original randomly distributed pattern of cells became a symmetric, radial distribution as the cell bodies aligned parallel to the applied force. High cell density interfered with the success of re-alignment in the fetal cell cultures observed, which may reflect a preference in this cell strain for cell-cell over cell-matrix contacts. The chronologically aged cells observed did not demonstrate this feature, aligning efficiently at all seeding densities examined. The role of microfilaments in force perception and transmission was investigated through the addition of cytochalasin D in graded doses. Both intercellular interactions and cytoskeletal integrity mediate the morphological response to mechanical strain.
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Affiliation(s)
- R A Grymes
- Cell and Molecular Biology Laboratory, NASA-Ames Research Center and Bionetics Corporation, Moffett Field, California 94035, USA
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Abstract
Normal cells have limited proliferative potential in culture, a fact that has been the basis of their use as a model for replicative senescence for many years. Recent molecular analyses have identified numerous changes in gene expression that occur as cells become senescent, and the results indicate that multiple levels of control contribute to the irreversible growth arrest. These include repression of growth stimulatory genes, overexpression of growth inhibitory genes, and interference with downstream pathways. Studies with cell types other than fibroblasts will better define the role of cell senescence in the aging process and in tumorigenesis.
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Affiliation(s)
- J R Smith
- Roy M. and Phyllis Gough Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030-3498, USA
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Abstract
The loss of replicative capacity in vitro of normal human diploid fibroblasts is a model for studying molecular changes that accompany both regulated growth control and cellular senescence. We describe the molecular phenotype of senescent fibroblasts in terms of markers that are altered with proliferative decline. We describe these markers by analyzing pathways and associated mechanisms related to the responsiveness of proliferatively competent and senescent cells to growth signals including changes in the extracellular environment, growth factors, growth factor receptors, secondary messengers, cell-cycle progression, transcription factors, and the fidelity of DNA synthesis. There is an abundance of molecular markers for senescence in culture at every level of information transfer. Although it seems clear that some alterations in gene expression with senescence are the result of specific changes in upstream events, more global dysregulation of coordinated growth control point to as yet undefined mechanisms.
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Affiliation(s)
- V J Cristofalo
- Center for Gerontological Research, Medical College of Pennsylvania, Philadelphia 19129, USA
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Cristofalo VJ, Pignolo RJ. Cell Culture as a Model. Compr Physiol 1995. [DOI: 10.1002/cphy.cp110104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Pawelec G. Molecular and cell biological studies of ageing and their application to considerations of T lymphocyte immunosenescence. Mech Ageing Dev 1995; 79:1-32. [PMID: 7791403 DOI: 10.1016/0047-6374(94)01549-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- G Pawelec
- Second Department of Internal Medicine, University of Tübingen Medical School, Germany
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