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Danziger M, Xu F, Noble H, Yang P, Roque DM. Tubulin Complexity in Cancer and Metastasis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1452:21-35. [PMID: 38805123 DOI: 10.1007/978-3-031-58311-7_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Tubulin plays a fundamental role in cellular function and as the subject for microtubule-active agents in the treatment of ovarian cancer. Microtubule-binding proteins (e.g., tau, MAP1/2/4, EB1, CLIP, TOG, survivin, stathmin) and posttranslational modifications (e.g., tyrosination, deglutamylation, acetylation, glycation, phosphorylation, polyamination) further diversify tubulin functionality and may permit additional opportunities to understand microtubule behavior in disease and to develop microtubule-modifying approaches to combat ovarian cancer. Tubulin-based structures that project from suspended ovarian cancer cells known as microtentacles may contribute to metastatic potential of ovarian cancer cells and could represent an exciting novel therapeutic target.
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Affiliation(s)
- Michael Danziger
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Fuhua Xu
- Division of Gynecologic Oncology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Helen Noble
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Peixin Yang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Dana M Roque
- Division of Gynecologic Oncology, Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA.
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Mohammadhosseinpour S, Weaver A, Sudhakaran M, Ho LC, Le T, Doseff AI, Medina-Bolivar F. Arachidin-1, a Prenylated Stilbenoid from Peanut, Enhances the Anticancer Effects of Paclitaxel in Triple-Negative Breast Cancer Cells. Cancers (Basel) 2023; 15:399. [PMID: 36672351 PMCID: PMC9856928 DOI: 10.3390/cancers15020399] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 01/11/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is one of the deadliest forms of breast cancer. Investigating alternative therapies to increase survival rates for this disease is essential. To this end, the cytotoxic effects of the prenylated stilbenoids arachidin-1 (A-1) and arachidin-3 (A-3), and non-prenylated resveratrol (RES) were evaluated in human TNBC cell lines as potential adjuvants for paclitaxel (Pac). A-1, alone or in combination with Pac, showed the highest cytotoxicity in TNBC cells. Apoptosis was further evaluated by measuring key apoptosis marker proteins, cell cycle arrest, and intracellular reactive oxygen species (ROS) generation. Furthermore, the cytotoxic effect of A-1 combined with Pac was also evaluated in a 3D spheroid TNBC model. The results showed that A-1 decreased the Pac IC50 approximately 2-fold in TNBC cells. The synergistic combination of A-1 and Pac arrested cells in G2/M phase and activated p53 expression. In addition, the combined treatment increased intracellular ROS generation and induced apoptosis. Importantly, the combination of A-1 with Pac inhibited TNBC spheroid growth. Our results demonstrated that A-1 in combination with Pac inhibited cell proliferation, induced apoptosis through mitochondrial oxidative stress, and reduced TNBC spheroid growth. These findings underscore the impactful effects of the prenylated stilbenoid A-1 as a novel adjuvant for Pac chemotherapy in TNBC treatment.
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Affiliation(s)
| | - Alexx Weaver
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA
| | - Meenakshi Sudhakaran
- Molecular, Cellular, and Integrative Physiology Graduate Program, Michigan State University, East Lansing, MI 48824, USA
| | - Linh-Chi Ho
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA
| | - Tra Le
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA
| | - Andrea I. Doseff
- Department of Physiology, and Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48824, USA
| | - Fabricio Medina-Bolivar
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA
- Department of Biological Sciences, Arkansas State University, Jonesboro, AR 72401, USA
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3
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Roque DM, Siegel ER, Buza N, Bellone S, Silasi DA, Huang GS, Andikyan V, Clark M, Azodi M, Schwartz PE, Rao GG, Reader JC, Hui P, Tymon-Rosario JR, Harold J, Mauricio D, Zeybek B, Menderes G, Altwerger G, Ratner E, Santin AD. Randomised phase II trial of weekly ixabepilone ± biweekly bevacizumab for platinum-resistant or refractory ovarian/fallopian tube/primary peritoneal cancer. Br J Cancer 2022; 126:1695-1703. [PMID: 35149854 PMCID: PMC8853032 DOI: 10.1038/s41416-022-01717-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 12/26/2021] [Accepted: 01/25/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND This multi-center RP2 study assessed activity/safety of ixabepilone + bevacizumab compared to ixabepilone in platinum-resistant/refractory ovarian/fallopian tube/primary peritoneal cancer. Additional objectives were to examine the role of prior bevacizumab and taxanes, and explore class III-ß-tubulin (TUBB3) as a predictive biomarker. METHODS Participants were randomised to receive ixabepilone 20 mg/m2 days 1, 8, 15 with (IXA + BEV) or without (IXA) bevacizumab 10 mg/kg days 1, 15 every 28 days. Patients were stratified by prior BEV. The primary endpoint was PFS. OS, safety, and ORR served as secondary endpoints. RESULTS Among 76 evaluable patients who received IXA + BEV (n = 39) compared to IXA (n = 37), the ORR was 33% (n = 13) versus 8% (n = 3)(P = 0.004), durable at 6 months in 37% (n = 14) and 3% (n = 1) (P < 0.001). BEV significantly improved PFS (median:5.5 vs 2.2 months, HR = 0.33, 95%CI 0.19-0.55, P < 0.001) and OS (median:10.0 vs 6.0 months, HR = 0.52, 95%CI 0.31-0.87, P = 0.006). Both regimens were well-tolerated. TUBB3 expression did not predict response. Subgroup analyses revealed minimal effect of prior BEV or taxane resistant/refractory status on response to IXA + BEV. CONCLUSIONS IXA + BEV is a well-tolerated, effective combination for platinum/taxane-resistant ovarian cancer that extends PFS and likely OS relative to IXA monotherapy. Prior receipt of BEV should not preclude the use of IXA + BEV. TUBB3 is not a predictive biomarker. CLINICAL TRIAL REGISTRATION NCT3093155.
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Affiliation(s)
- Dana M Roque
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Eric R Siegel
- University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Natalia Buza
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Stefania Bellone
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Dan-Arin Silasi
- Division of Gynecologic Oncology, Mercy Clinic, St. Louis, MO, USA
| | - Gloria S Huang
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Vaagn Andikyan
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Mitchell Clark
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Masoud Azodi
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Peter E Schwartz
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Gautam G Rao
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jocelyn C Reader
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Pei Hui
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | | | - Justin Harold
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Dennis Mauricio
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Burak Zeybek
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Gulden Menderes
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Gary Altwerger
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Elena Ratner
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA
| | - Alessandro D Santin
- Smilow Comprehensive Cancer Center, Yale School of Medicine, New Haven, CT, USA.
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Lu Y, Zhang P, Zhang Q, Yang C, Qian Y, Suo J, Tao X, Zhu J. Duloxetine Attenuates Paclitaxel-Induced Peripheral Nerve Injury by Inhibiting p53-Related Pathways. J Pharmacol Exp Ther 2020; 373:453-462. [DOI: 10.1124/jpet.120.265082] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/18/2020] [Indexed: 12/20/2022] Open
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Shi X, Sun X. Regulation of paclitaxel activity by microtubule-associated proteins in cancer chemotherapy. Cancer Chemother Pharmacol 2017; 80:909-917. [PMID: 28741098 DOI: 10.1007/s00280-017-3398-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 07/17/2017] [Indexed: 11/30/2022]
Abstract
Microtubules, highly dynamic components of the cytoskeleton, participate in diverse cellular activities such as mitosis, cell migration, and intracellular trafficking. Dysregulation of microtubule dynamics contributes to the development of serious diseases, including cancer. The dynamic properties and functions of microtubule network are regulated by microtubule-associated proteins. Paclitaxel, an anti-microtubule agent of the taxane family, has shown a success in clinical treatment of many cancer patients. However, the variable response activity of patients and acquired resistance to paclitaxel limit the clinical use of the drug. Accumulating studies show that microtubule-associated proteins can regulate paclitaxel sensitivity in a wide range of cancer types. In this review, we will describe the roles of various microtubule-associated proteins in the regulation of paclitaxel in cancers. Particularly, we will focus on the modulation of centrosomal proteins in paclitaxel resistance. Improved understandings of how these proteins act might predict treatment responses and provide insights into more rational chemotherapeutic regimens in clinical practice.
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Affiliation(s)
- Xingjuan Shi
- Key Laboratory of Developmental Genes and Human Disease, Institute of Life Sciences, Southeast University, Nanjing, 210096, China.
| | - Xiaoou Sun
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou, 510006, China.
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6
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Nehlig A, Molina A, Rodrigues-Ferreira S, Honoré S, Nahmias C. Regulation of end-binding protein EB1 in the control of microtubule dynamics. Cell Mol Life Sci 2017; 74:2381-2393. [PMID: 28204846 PMCID: PMC11107513 DOI: 10.1007/s00018-017-2476-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 01/13/2017] [Accepted: 01/24/2017] [Indexed: 12/14/2022]
Abstract
The regulation of microtubule dynamics is critical to ensure essential cell functions, such as proper segregation of chromosomes during mitosis or cell polarity and migration. End-binding protein 1 (EB1) is a plus-end-tracking protein (+TIP) that accumulates at growing microtubule ends and plays a pivotal role in the regulation of microtubule dynamics. EB1 autonomously binds an extended tubulin-GTP/GDP-Pi structure at growing microtubule ends and acts as a molecular scaffold that recruits a large number of regulatory +TIPs through interaction with CAP-Gly or SxIP motifs. While extensive studies have focused on the structure of EB1-interacting site at microtubule ends and its role as a molecular platform, the mechanisms involved in the negative regulation of EB1 have only started to emerge and remain poorly understood. In this review, we summarize recent studies showing that EB1 association with MT ends is regulated by post-translational modifications and affected by microtubule-targeting agents. We also present recent findings that structural MAPs, that have no tip-tracking activity, physically interact with EB1 to prevent its accumulation at microtubule plus ends. These observations point out a novel concept of "endogenous EB1 antagonists" and emphasize the importance of finely regulating EB1 function at growing microtubule ends.
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Affiliation(s)
- Anne Nehlig
- Inserm U981, Institut Gustave Roussy, 114 rue Edouard Vaillant, 94800, Villejuif, France
- University Paris Saclay, 94800, Villejuif, France
| | - Angie Molina
- Inserm U981, Institut Gustave Roussy, 114 rue Edouard Vaillant, 94800, Villejuif, France
- University Paris Saclay, 94800, Villejuif, France
- CBD, University of Toulouse-3, Toulouse, France
| | - Sylvie Rodrigues-Ferreira
- Inserm U981, Institut Gustave Roussy, 114 rue Edouard Vaillant, 94800, Villejuif, France
- University Paris Saclay, 94800, Villejuif, France
| | - Stéphane Honoré
- Aix Marseille University, Inserm U-911, CRO2, Marseille, France
- Service Pharmacie, CHU Hôpital de La Timone, APHM, Marseille, France
| | - Clara Nahmias
- Inserm U981, Institut Gustave Roussy, 114 rue Edouard Vaillant, 94800, Villejuif, France.
- University Paris Saclay, 94800, Villejuif, France.
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7
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Zhang D, Zhang B, Zhou LX, Zhao J, Yan YY, Li YL, Zeng JM, Wang LL, Yang B, Lin NM. Deacetylisovaltratum disrupts microtubule dynamics and causes G 2/M-phase arrest in human gastric cancer cells in vitro. Acta Pharmacol Sin 2016; 37:1597-1605. [PMID: 27665846 PMCID: PMC5260834 DOI: 10.1038/aps.2016.91] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/07/2016] [Indexed: 12/29/2022] Open
Abstract
Aim: Deacetylisovaltratum (DI) is isolated from the traditional Chinese herbal medicine Patrinia heterophylla Bunge, which exhibits anti-cancer activity. Here, we investigated the effects of DI on human gastric carcinoma cell lines in vitro and elucidated its anti-cancer mechanisms. Methods: Human gastric carcinoma AGS and HGC-27 cell lines were treated with DI, and cell viability was detected with MTT assay. Cell cycle stages, apoptosis and mitochondrial membrane potential were measured using flow cytometry. Protein levels were analyzed by Western blotting. Tubulin polymerization assays and immunofluorescence were used to characterize the tubulin polymerization process. Results: DI inhibited the cell viability of AGS and HGC-27 cells in a dose- and time-dependent manner with IC50 values of 12.0 and 28.8 μmol/L, respectively, at 24 h of treatment. Treatment with DI (10–100 μmol/L) dose-dependently promoted tubulin polymerization, and induced significant G2/M cell cycle arrest in AGS and HGC-27 cells. Moreover, DI treatment disrupted mitochondrial membrane potential and induced caspase-dependent apoptosis in AGS and HGC-27 cells. Conclusion: DI induces G2/M-phase arrest by disrupting tubulin polymerization in human gastric cancer cells, which highlights its potent anti-cancer activity and potential application in gastric cancer therapy.
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Thomas GE, Bandopadhyay K, Sutradhar S, Renjith MR, Singh P, Gireesh KK, Simon S, Badarudeen B, Gupta H, Banerjee M, Paul R, Mitra J, Manna TK. EB1 regulates attachment of Ska1 with microtubules by forming extended structures on the microtubule lattice. Nat Commun 2016; 7:11665. [PMID: 27225956 PMCID: PMC4894954 DOI: 10.1038/ncomms11665] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/18/2016] [Indexed: 12/22/2022] Open
Abstract
Kinetochore couples chromosome movement to dynamic microtubules, a process that is fundamental to mitosis in all eukaryotes but poorly understood. In vertebrates, spindle-kinetochore-associated (Ska1–3) protein complex plays an important role in this process. However, the proteins that stabilize Ska-mediated kinetochore-microtubule attachment remain unknown. Here we show that microtubule plus-end tracking protein EB1 facilitates Ska localization on microtubules in vertebrate cells. EB1 depletion results in a significant reduction of Ska1 recruitment onto microtubules and defects in mitotic chromosome alignment, which is also reflected in computational modelling. Biochemical experiments reveal that EB1 interacts with Ska1, facilitates Ska1-microtubule attachment and together stabilizes microtubules. Structural studies reveal that EB1 either with Ska1 or Ska complex forms extended structures on microtubule lattice. Results indicate that EB1 promotes Ska association with K-fibres and facilitates kinetochore-microtubule attachment. They also implicate that in vertebrates, chromosome coupling to dynamic microtubules could be mediated through EB1-Ska extended structures. Ska1 is a kinetochore-localised protein that couples kinetochore movement to microtubule (MT) depolymerisation. Here Thomas et al. show that the MT +TIP binding protein EB1 recruits Ska1 to the MT-kinetochore interface and stabilises the interaction between Ska1 and MTs.
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Affiliation(s)
- Geethu E Thomas
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - K Bandopadhyay
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Sabyasachi Sutradhar
- Department of Solid State Physics, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - M R Renjith
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Puja Singh
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - K K Gireesh
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Steny Simon
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Binshad Badarudeen
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Hindol Gupta
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Manidipa Banerjee
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Raja Paul
- Department of Solid State Physics, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - J Mitra
- School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
| | - Tapas K Manna
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram 695016, India
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Control of microtubule organization and dynamics: two ends in the limelight. Nat Rev Mol Cell Biol 2015; 16:711-26. [PMID: 26562752 DOI: 10.1038/nrm4084] [Citation(s) in RCA: 589] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Microtubules have fundamental roles in many essential biological processes, including cell division and intracellular transport. They assemble and disassemble from their two ends, denoted the plus end and the minus end. Significant advances have been made in our understanding of microtubule plus-end-tracking proteins (+TIPs) such as end-binding protein 1 (EB1), XMAP215, selected kinesins and dynein. By contrast, information on microtubule minus-end-targeting proteins (-TIPs), such as the calmodulin-regulated spectrin-associated proteins (CAMSAPs) and Patronin, has only recently started to emerge. Here, we review our current knowledge of factors, including microtubule-targeting agents, that associate with microtubule ends to control the dynamics and function of microtubules during the cell cycle and development.
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10
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Zhao M, Li H, Bu X, Lei C, Fang Q, Hu Z. Quantitative Proteomic Analysis of Cellular Resistance to the Nanoparticle Abraxane. ACS NANO 2015; 9:10099-10112. [PMID: 26324059 DOI: 10.1021/acsnano.5b03677] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Abraxane, an FDA-approved albumin-bound nanoparticle (NP) form of paclitaxel (PTX) to treat breast cancer and nonsmall cell lung cancer (NSCLC), has been demonstrated to be more effective than the original Taxol, the single molecule form. We have established a cell line from NSCLC A549 cells to be resistant to Abraxane. To further understand the molecular mechanisms involved in the NP drug resistance, global protein expression profiles of Abraxane sensitive (A549) and resistant cells (A549/Abr), along with the treatment of Abraxane, have been obtained by a quantitative proteomic approach. The most significantly differentially expressed proteins are associated with lipid metabolism, cell cycle, cytoskeleton, apoptosis pathways and processes, suggesting several mechanisms are working synergistically in A549 Abraxane-resistant cells. Overexpression of proteins in the lipid metabolism processes, such as E3 ubiquitin-protein ligase RNF139 (RNF139) and Hydroxymethylglutaryl-CoA synthase (HMGCS1), have not been reported previously in the study of paclitaxel resistance, suggesting possibly different mechanism between nanoparticle and single molecular drug resistance. In particular, RNF139 is one of the most up-regulated proteins in A549 Abraxane-resistant cell line, but remains no change when the resistant cells were further treated with Abraxane and down-regulated in the sensitive cells after 4 h treatment of Abraxane. This study shows the use of a proteomic strategy to understand the unique response of drug resistant cells to a nanoparticle therapeutic.
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Affiliation(s)
- Minzhi Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
| | - Haiyun Li
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
| | - Xiangli Bu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
| | - Chunni Lei
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
| | - Qiaojun Fang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
| | - Zhiyuan Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, Chinese Academy of Sciences , Beijing 100190, China
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11
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Chen Y, Gao D, Liu H, Lin S, Jiang Y. Drug cytotoxicity and signaling pathway analysis with three-dimensional tumor spheroids in a microwell-based microfluidic chip for drug screening. Anal Chim Acta 2015; 898:85-92. [PMID: 26526913 DOI: 10.1016/j.aca.2015.10.006] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 10/04/2015] [Accepted: 10/06/2015] [Indexed: 12/28/2022]
Abstract
Currently, there has been a growing need for developing in vitro models to better reflect organism response to chemotherapy at tissue level. For this reason, a microfluidic platform was developed for mimicking physiological microenvironment of solid tumor with multicellular tumor spheroids (MTS) for anticancer drug screening. Importantly, the power of this system over traditional systems is that it is simple to operate and high integration in a more physiologically relevant context. As a proof of concept, long-term MTS cultures with uniform structure were realized on the microfluidic based platform. The response of doxorubicin and paclitaxel on different types of spheroids were simultaneously performed by in situ Live/Dead fluorescence stain to provide spatial distribution of dead cells as well as cytotoxicity information. In addition, the established platform combined with microplate reader was capable to determine the cytotoxicity of different sized MTS, showing a more powerful tool than cell staining examination at the end-point of assay. The HCT116 spheroids were then lysed on chip followed by signaling transduction pathway analysis. To our knowledge, the on chip drug screening study is the first to address the drug susceptibility testing and the offline detailed drug signaling pathway analysis combination on one system. Thus, this novel microfluidic platform provides a useful tool for drug screening with tumor spheroids, which is crucial for drug discovery and development.
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Affiliation(s)
- Yongli Chen
- School of Medicine, Tsinghua University, Beijing 100084, China; Key Lab of Chemical Genomics, School of Chemical Biology & Biotechnology, Graduate School at Shenzhen, Peking University, Shenzhen 518055, China
| | - Dan Gao
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Key Laboratory of Metabolomics at Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Hongxia Liu
- State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China; Key Laboratory of Metabolomics at Shenzhen, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Shuo Lin
- Key Lab of Chemical Genomics, School of Chemical Biology & Biotechnology, Graduate School at Shenzhen, Peking University, Shenzhen 518055, China
| | - Yuyang Jiang
- School of Medicine, Tsinghua University, Beijing 100084, China; State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
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12
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Xie S, Ogden A, Aneja R, Zhou J. Microtubule-Binding Proteins as Promising Biomarkers of Paclitaxel Sensitivity in Cancer Chemotherapy. Med Res Rev 2015; 36:300-12. [PMID: 26332739 DOI: 10.1002/med.21378] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 07/29/2015] [Accepted: 08/14/2015] [Indexed: 01/11/2023]
Abstract
Microtubules, tirelessly animated and highly dynamic structures, are vital for most cellular processes and their intricacies are still being revealed even after a century since their discovery. The importance of microtubules as chemotherapeutic targets cannot be overstated, and their clinical role is unlikely to abate in the near future. Indeed, improved understanding of microtubule biology could herald a new epoch of anticancer drug design by permitting fine-tuning of microtubule-targeting agents, the clinical utility of which is presently often limited by primary or acquired resistance. Paclitaxel, one such agent belonging to the taxane family, has proven a resoundingly successful treatment for many cancer patients; however, for too many others with paclitaxel-refractory tumors, the drug has offered nothing but side effects. Accumulating evidence suggests that microtubule-binding proteins (MBPs) can regulate paclitaxel sensitivity in a wide range of cancer types. Improved understanding of how these proteins can be assayed to predict treatment responses or manipulated pharmacologically to improve clinical outcomes could transform modern chemotherapy and is urgently awaited.
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Affiliation(s)
- Songbo Xie
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Angela Ogden
- Department of Biology, Georgia State University, Atlanta, GA, 30303
| | - Ritu Aneja
- Department of Biology, Georgia State University, Atlanta, GA, 30303
| | - Jun Zhou
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, 300071, China
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Suhail TV, Singh P, Manna TK. Suppression of centrosome protein TACC3 induces G1 arrest and cell death through activation of p38-p53-p21 stress signaling pathway. Eur J Cell Biol 2015; 94:90-100. [PMID: 25613365 DOI: 10.1016/j.ejcb.2014.12.001] [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: 06/27/2014] [Revised: 11/23/2014] [Accepted: 12/08/2014] [Indexed: 11/28/2022] Open
Abstract
The centrosome regulates diverse cellular processes, including cell proliferation and differentiation. TACC3, a member of the human transforming acidic coiled-coil protein family, is a key centrosomal protein that is up-regulated in many cancers. Previous studies have demonstrated that TACC3 is essential for the survival of vertebrates and is involved in cell cycle regulation in human cells. However, the details of the underlying mechanisms in its cell cycle regulatory activity remain poorly understood. In this study, we showed that suppression of TACC3 expression induced G1 cell cycle arrest and triggered cell death in human cells. TACC3 depletion-induced G1 arrest and cell death were significantly reduced in cells either lacking p53 or with pharmacologically-inhibited p38, indicating that G1 arrest and cell death induction both require p53 and p38. TACC3 depletion up-regulated the levels of p53 and p21 and induced the accumulation of p53 both in the nucleus and at the centrosome. Interestingly, TACC3 depletion led to the activation of p38 and stimulated the recruitment of activated p38 to the centrosome. Depletion of TACC3 up-regulated the phosphorylation of p53 at Serine 33, a site known to be phosphorylated by p38 under cellular stress and further induced the accumulation of phosphorylated p53 to the centrosome. Loss of TACC3 affected centrosome integrity by disrupting the localization of components of the γ-tubulin ring complex at the centrosome. The results demonstrate that TACC3 depletion induces G1 arrest and cell death by activating p38-p53-p21 signaling and triggering a centrosome-mediated cellular stress response.
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Affiliation(s)
- Thazhath V Suhail
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, CET Campus, Trivandrum 695016, Kerala, India
| | - Puja Singh
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, CET Campus, Trivandrum 695016, Kerala, India
| | - Tapas K Manna
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, CET Campus, Trivandrum 695016, Kerala, India.
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