1
|
Miura T, Kado J, Ashisuke K, Masuzawa M, Nakayama F. Sustained activation of the FGF1-MEK-ERK pathway inhibits proliferation, invasion and migration and enhances radiosensitivity in mouse angiosarcoma cells. JOURNAL OF RADIATION RESEARCH 2024; 65:303-314. [PMID: 38637316 PMCID: PMC11115473 DOI: 10.1093/jrr/rrae021] [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: 07/04/2023] [Revised: 11/15/2023] [Indexed: 04/20/2024]
Abstract
Angiosarcoma is a rare refractory soft-tissue tumor with a poor prognosis and is treated by radiotherapy. The fibroblast growth factor 1 (FGF1) mutant, with enhanced thermostability due to several substituted amino acids, inhibits angiosarcoma cell metastasis, yet the mechanism of action is unclear. This study aims to clarify the FGF1 mutant mechanism of action using ISOS-1 mouse angiosarcoma cells. The wild-type FGF1 or FGF1 mutant was added to ISOS-1 cells and cultured, evaluating cell numbers over time. The invasive and migratory capacity of ISOS-1 cells was assessed by transwell analysis. ISOS-1 cell radiosensitivity was assessed by colony formation assay after X-ray irradiation. To examine whether mitogen-activated protein kinase (MEK) inhibitor counteracts the FGF1 mutant effects, a combination of MEK inhibitor and FGF1 mutant was added to ISOS-1 cells and cultured. The FGF1 mutant was observed to inhibit ISOS-1 cell proliferation, invasion and migration by sustained FGF1 signaling activation. A MEK inhibitor suppressed the FGF1 mutant-induced inhibition of proliferation, invasion and migration of ISOS-1 cells. Furthermore, the FGF1 mutant enhanced radiosensitivity of ISOS-1 cells, but MEK inhibition suppressed the increased radiosensitivity. In addition, we found that the FGF1 mutant strongly inhibits actin polymerization, suggesting that actin cytoskeletal dynamics are closely related to ISOS-1 cell radiosensitivity. Overall, this study demonstrated that in ISOS-1 cells, the FGF1 mutant inhibits proliferation, invasion and migration while enhancing radiosensitivity through sustained activation of the MEK-mediated signaling pathway.
Collapse
Affiliation(s)
- Taichi Miura
- Regenerative Therapy Research Group, Department of Radiation Regulatory Science Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Junko Kado
- Regenerative Therapy Research Group, Department of Radiation Regulatory Science Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Kazuma Ashisuke
- Radiation Effect Research Group, Department of Accelerator and Medical Physics, Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Mikio Masuzawa
- Department of Dermatology, Iwase General Hospital, 20 Kitamachi, Sukagawa-shi, Fukushima 962-8503, Japan
| | - Fumiaki Nakayama
- Regenerative Therapy Research Group, Department of Radiation Regulatory Science Research, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| |
Collapse
|
2
|
Wollscheid HP, Ulrich HD. Chromatin meets the cytoskeleton: the importance of nuclear actin dynamics and associated motors for genome stability. DNA Repair (Amst) 2023; 131:103571. [PMID: 37738698 DOI: 10.1016/j.dnarep.2023.103571] [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: 05/09/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/24/2023]
Abstract
The actin cytoskeleton is of fundamental importance for numerous cellular processes, including intracellular transport, cell plasticity, and cell migration. However, functions of filamentous actin (F-actin) in the nucleus remain understudied due to the comparatively low abundance of nuclear actin and the resulting experimental limitations to its visualization. Owing to recent technological advances such as super-resolution microscopy and the development of nuclear-specific actin probes, essential roles of the actin cytoskeleton in the context of genome maintenance are now emerging. In addition to the contributions of monomeric actin as a component of multiple important nuclear protein complexes, nuclear actin has been found to undergo polymerization in response to DNA damage and DNA replication stress. Consequently, nuclear F-actin plays important roles in the regulation of intra-nuclear mobility of repair and replication foci as well as the maintenance of nuclear shape, two important aspects of efficient stress tolerance. Beyond actin itself, there is accumulating evidence for the participation of multiple actin-binding proteins (ABPs) in the surveillance of genome integrity, including nucleation factors and motor proteins of the myosin family. Here we summarize recent findings highlighting the importance of actin cytoskeletal factors within the nucleus in key genome maintenance pathways.
Collapse
Affiliation(s)
- Hans-Peter Wollscheid
- Institute of Molecular Biology gGmbH (IMB), Ackermannweg 4, Mainz D - 55128, Germany.
| | - Helle D Ulrich
- Institute of Molecular Biology gGmbH (IMB), Ackermannweg 4, Mainz D - 55128, Germany.
| |
Collapse
|
3
|
Jin L, Li T, Hong Y, Mao R, Li X, Zhu C, Mu J, Zhou J, Pan L, Que Y, Xia Y, Zhang Y, Li S. Activation of NLRP2 in Triple-Negative Breast Cancer sensitizes chemotherapeutic therapy through facilitating hnRNPK function. Biochem Pharmacol 2023; 215:115703. [PMID: 37499769 DOI: 10.1016/j.bcp.2023.115703] [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: 04/28/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Nucleotide-binding oligomerization domain (NOD)-like receptor type 2 protein (NLRP2) was reported to inhibit NF-κB in response to inflammatory stimuli, but its role in tumors remains elusive. We screened out NLRP2 from mouse models of breast cancer metastasis. Bioinformatics analysis showed NLRP2 expression was positively correlated with survival rate and negatively correlated with the potential of cancer metastasis. Its significance in Triple-Negative Breast Cancer (TNBC) was investigated by gain- and loss-of-function studies in vivo and vitro. Re-expression of NLRP2 dramatically inhibited the growth and metastasis of the xenograft model of MDA-MB-231 cells. Mechanically, NLRP2 confined hnRNPK within cytoplasm, which in turn blocked vimentin mRNA production. Not only that, NLRP2 further enhanced the H2O2-induced high level of p53&Bax and hence dramatically increased the apoptosis rate (fivefold). Likewise, carboplatin-treated cells showed decreased cell viability, suggesting that patients of TNBC with high level of NLRP2 respond well to chemotherapeutics. Under the stimulus of H2O2, NLRP2-hnRNPK no longer stayed in the cytoplasm, but entered the nucleus to increase the expression of p53 and hence enhanced corresponding apoptosis effect, increasing Bax expression. It suggested that NLRP2 helps p53 enter the nucleus to induce apoptosis. This study revealed a novel function of NLRP2 that modulated oncogenic and anti-oncogenic characteristics of hnRNPK, and provided a new biomarker for TNBC chemotherapy.
Collapse
Affiliation(s)
- Lai Jin
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China.
| | - Tiantian Li
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Yali Hong
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Rongchen Mao
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Xu Li
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Chao Zhu
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Junyu Mu
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Jun Zhou
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Lihua Pan
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Yuhui Que
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Yidong Xia
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Yuheng Zhang
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China
| | - Shengnan Li
- Department of Pharmacology, Nanjing Medical University, Nanjing 211116, PR China.
| |
Collapse
|
4
|
Zeng RJ, Zheng CW, Chen WX, Xu LY, Li EM. Rho GTPases in cancer radiotherapy and metastasis. Cancer Metastasis Rev 2020; 39:1245-1262. [PMID: 32772212 DOI: 10.1007/s10555-020-09923-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/28/2020] [Indexed: 02/05/2023]
Abstract
Despite treatment advances, radioresistance and metastasis markedly impair the benefits of radiotherapy to patients with malignancies. Functioning as molecular switches, Rho guanosine triphosphatases (GTPases) have well-recognized roles in regulating various downstream signaling pathways in a wide range of cancers. In recent years, accumulating evidence indicates the involvement of Rho GTPases in cancer radiotherapeutic efficacy and metastasis, as well as radiation-induced metastasis. The functions of Rho GTPases in radiotherapeutic efficacy are divergent and context-dependent; thereby, a comprehensive integration of their roles and correlated mechanisms is urgently needed. This review integrates current evidence supporting the roles of Rho GTPases in mediating radiotherapeutic efficacy and the underlying mechanisms. In addition, their correlations with metastasis and radiation-induced metastasis are discussed. Under the prudent application of Rho GTPase inhibitors based on critical evaluations of biological contexts, targeting Rho GTPases can be a promising strategy in overcoming radioresistance and simultaneously reducing the metastatic potential of tumor cells.
Collapse
Affiliation(s)
- Rui-Jie Zeng
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Chun-Wen Zheng
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Wan-Xian Chen
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China
| | - Li-Yan Xu
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
- Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, China.
| | - En-Min Li
- Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, China.
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China.
| |
Collapse
|
5
|
Wang CY, Chang CY, Wang CY, Liu K, Kang CY, Lee YJ, Chen WR. N-Dihydrogalactochitosan Potentiates the Radiosensitivity of Liver Metastatic Tumor Cells Originated from Murine Breast Tumors. Int J Mol Sci 2019; 20:ijms20225581. [PMID: 31717306 PMCID: PMC6888949 DOI: 10.3390/ijms20225581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/06/2019] [Accepted: 11/06/2019] [Indexed: 12/17/2022] Open
Abstract
Radiation is a widely used therapeutic method for treating breast cancer. N-dihydrogalactochitosan (GC), a biocompatible immunostimulant, is known to enhance the effects of various treatment modalities in different tumor types. However, whether GC can enhance the radiosensitivity of cancer cells remains to be explored. In this study, triple-negative murine 4T1 breast cancer cells transduced with multi-reporter genes were implanted in immunocompetent Balb/C mice to track, dissect, and identify liver-metastatic 4T1 cells. These cells expressed cancer stem cell (CSC) -related characteristics, including the ability to form spheroids, the expression of the CD44 marker, and the increase of protein stability. We then ex vivo investigated the potential effect of GC on the radiosensitivity of the liver-metastatic 4T1 breast cancer cells and compared the results to those of parental 4T1 cells subjected to the same treatment. The cells were irradiated with increased doses of X-rays with or without GC treatment. Colony formation assays were then performed to determine the survival fractions and radiosensitivity of these cells. We found that GC preferably increased the radiosensitivity of liver-metastatic 4T1 breast cancer cells rather than that of the parental cells. Additionally, the single-cell DNA electrophoresis assay (SCDEA) and γ-H2AX foci assay were performed to assess the level of double-stranded DNA breaks (DSBs). Compared to the parental cells, DNA damage was significantly increased in liver-metastatic 4T1 cells after they were treated with GC plus radiation. Further studies on apoptosis showed that this combination treatment increased the sub-G1 population of cells, but not caspase-3 cleavage, in liver-metastatic breast cancer cells. Taken together, the current data suggest that the synergistic effects of GC and irradiation might be used to enhance the efficacy of radiotherapy in treating metastatic tumors.
Collapse
Affiliation(s)
- Chung-Yih Wang
- Radiotherapy, Department of Medical Imaging, Cheng Hsin General Hospital, Taipei 112, Taiwan;
| | - Chun-Yuan Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan; (C.-Y.C.); (C.-Y.W.); (C.-Y.K.)
| | - Chun-Yu Wang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan; (C.-Y.C.); (C.-Y.W.); (C.-Y.K.)
| | - Kaili Liu
- Biophotonics Research Laboratory, Center for Interdisciplinary Biomedical Education and Research, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, USA;
| | - Chia-Yun Kang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan; (C.-Y.C.); (C.-Y.W.); (C.-Y.K.)
| | - Yi-Jang Lee
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan; (C.-Y.C.); (C.-Y.W.); (C.-Y.K.)
- Cancer Progression Research Center, National Yang-Ming University, Taipei 112, Taiwan
- Correspondence: (Y.-J.L.); (W.R.C.); Tel.: +886-960-429508 (Y.-J.L.); +1-212-2192879 (W.R.C.)
| | - Wei R. Chen
- Biophotonics Research Laboratory, Center for Interdisciplinary Biomedical Education and Research, College of Mathematics and Science, University of Central Oklahoma, Edmond, OK 73034, USA;
- Correspondence: (Y.-J.L.); (W.R.C.); Tel.: +886-960-429508 (Y.-J.L.); +1-212-2192879 (W.R.C.)
| |
Collapse
|
6
|
Yi L, Hu N, Mu H, Sun J, Yin J, Dai K, Xu F, Yang N, Ding D. Identification of Cofilin-1 and Destrin as Potential Early-warning Biomarkers for Gamma Radiation in Mouse Liver Tissues. HEALTH PHYSICS 2019; 116:749-759. [PMID: 30913056 DOI: 10.1097/hp.0000000000001012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Gamma radiation causes cell injury and leads to an increased risk of cancer, so it is of practical significance to identify biomarkers for gamma radiation. We used proteomic analysis to identify differentially expressed proteins in liver tissues of C57BL/6J mice treated with gamma radiation from Cs for 360 d. We confirmed obvious pathological changes in mouse liver tissues after irradiation. Compared with the control group, 74 proteins showed a fold change of ≥1.5 in the irradiated groups. We selected 24 proteins for bioinformatics analysis and peptide mass fingerprinting and found that 20 of the identified proteins were meaningful. These proteins were associated with tumorigenesis, tumor suppression, catalysis, cell apoptosis, cytoskeleton, metabolism, gene transcription, T-cell response, and other pathways. We confirmed that both cofilin-1 and destrin were up regulated in the irradiated groups by western blot and real-time polymerase chain reaction. Our findings indicate that cofilin-1 and destrin are sensitive to gamma radiation and may be potential biomarkers for gamma radiation. Whether these proteins are involved in radiation-induced tumorigenesis requires further investigation.
Collapse
Affiliation(s)
- Lan Yi
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Nan Hu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China
| | - Hongxiang Mu
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Jing Sun
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Jie Yin
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Keren Dai
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Fanghui Xu
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Nanyang Yang
- Institute of Cytology and Genetics, College of Pharmaceutical and Biological Science, University of South China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China
| |
Collapse
|
7
|
Pfitzer L, Moser C, Gegenfurtner F, Arner A, Foerster F, Atzberger C, Zisis T, Kubisch-Dohmen R, Busse J, Smith R, Timinszky G, Kalinina OV, Müller R, Wagner E, Vollmar AM, Zahler S. Targeting actin inhibits repair of doxorubicin-induced DNA damage: a novel therapeutic approach for combination therapy. Cell Death Dis 2019; 10:302. [PMID: 30944311 PMCID: PMC6447524 DOI: 10.1038/s41419-019-1546-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/20/2019] [Accepted: 03/22/2019] [Indexed: 01/22/2023]
Abstract
Severe side effects often restrict clinical application of the widely used chemotherapeutic drug doxorubicin. In order to decrease required substance concentrations, new concepts for successful combination therapy are needed. Since doxorubicin causes DNA damage, combination with compounds that modulate DNA repair could be a promising strategy. Very recently, a role of nuclear actin for DNA damage repair has been proposed, making actin a potential target for cancer therapy in combination with DNA-damaging therapeutics. This is of special interest, since actin-binding compounds have not yet found their way into clinics. We find that low-dose combination treatment of doxorubicin with the actin polymerizer chondramide B (ChB) synergistically inhibits tumor growth in vivo. On the cellular level we demonstrate that actin binders inhibit distinctive double strand break (DSB) repair pathways. Actin manipulation impairs the recruitment of replication factor A (RPA) to the site of damage, a process crucial for homologous recombination. In addition, actin binders reduce autophosphorylation of DNA-dependent protein kinase (DNA-PK) during nonhomologous end joining. Our findings substantiate a direct involvement of actin in nuclear DSB repair pathways, and propose actin as a therapeutic target for combination therapy with DNA-damaging agents such as doxorubicin.
Collapse
Affiliation(s)
- Lisa Pfitzer
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Christina Moser
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Florian Gegenfurtner
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Anja Arner
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Florian Foerster
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Carina Atzberger
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Themistoklis Zisis
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Rebekka Kubisch-Dohmen
- Department of Pharmacy, Pharmaceutical Biology and Biotechnology-Biotechnology and Nanomedicine, Ludwig Maximilian University Munich, Munich, Germany
| | - Johanna Busse
- Department of Pharmacy, Pharmaceutical Biology and Biotechnology-Biotechnology and Nanomedicine, Ludwig Maximilian University Munich, Munich, Germany
| | - Rebecca Smith
- Department of Physiological Chemistry, Ludwig Maximilian University, Munich, Germany.,CNRS, Structure fédérative de recherche Biosit, IGDR (Institut de génétique et développement de Rennes)-UMR 6290, Univ Rennes, 35000, Rennes, France
| | - Gyula Timinszky
- Department of Physiological Chemistry, Ludwig Maximilian University, Munich, Germany.,MTA SZBK Lendület DNA Damage and Nuclear Dynamics Research Group, Biological Research Center of the Hungarian Academy of Sciences, Szeged, Hungary
| | - Olga V Kalinina
- Computational Biology and Applied Algorithmics, Max Planck Institute for Informatics, Saarbrücken, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research and Department of Pharmacy, Saarland University, Saarbrücken, Germany
| | - Ernst Wagner
- Department of Pharmacy, Pharmaceutical Biology and Biotechnology-Biotechnology and Nanomedicine, Ludwig Maximilian University Munich, Munich, Germany
| | - Angelika M Vollmar
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany
| | - Stefan Zahler
- Department of Pharmacy, Pharmaceutical Biology, Ludwig Maximilian University Munich, Munich, Germany.
| |
Collapse
|
8
|
Palmieri D, Tessari A, Coppola V. Scorpins in the DNA Damage Response. Int J Mol Sci 2018; 19:ijms19061794. [PMID: 29914204 PMCID: PMC6032341 DOI: 10.3390/ijms19061794] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 12/19/2022] Open
Abstract
The DNA Damage Response (DDR) is a complex signaling network that comes into play when cells experience genotoxic stress. Upon DNA damage, cellular signaling pathways are rewired to slow down cell cycle progression and allow recovery. However, when the damage is beyond repair, cells activate complex and still not fully understood mechanisms, leading to a complete proliferative arrest or cell death. Several conventional and novel anti-neoplastic treatments rely on causing DNA damage or on the inhibition of the DDR in cancer cells. However, the identification of molecular determinants directing cancer cells toward recovery or death upon DNA damage is still far from complete, and it is object of intense investigation. SPRY-containing RAN binding Proteins (Scorpins) RANBP9 and RANBP10 are evolutionarily conserved and ubiquitously expressed proteins whose biological functions are still debated. RANBP9 has been previously implicated in cell proliferation, survival, apoptosis and migration. Recent studies also showed that RANBP9 is involved in the Ataxia Telangiectasia Mutated (ATM) signaling upon DNA damage. Accordingly, cells lacking RANBP9 show increased sensitivity to genotoxic treatment. Although there is no published evidence, extensive protein similarities suggest that RANBP10 might have partially overlapping functions with RANBP9. Like RANBP9, RANBP10 bears sites putative target of PIK-kinases and high throughput studies found RANBP10 to be phosphorylated following genotoxic stress. Therefore, this second Scorpin might be another overlooked player of the DDR alone or in combination with RANBP9. This review focuses on the relatively unknown role played by RANBP9 and RANBP10 in responding to genotoxic stress.
Collapse
Affiliation(s)
- Dario Palmieri
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University and James Comprehensive Cancer Center, Columbus, OH 43210, USA.
| | - Anna Tessari
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University and James Comprehensive Cancer Center, Columbus, OH 43210, USA.
| | - Vincenzo Coppola
- Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University and James Comprehensive Cancer Center, Columbus, OH 43210, USA.
| |
Collapse
|
9
|
DNA damage causes rapid accumulation of phosphoinositides for ATR signaling. Nat Commun 2017; 8:2118. [PMID: 29242514 PMCID: PMC5730617 DOI: 10.1038/s41467-017-01805-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 10/13/2017] [Indexed: 12/11/2022] Open
Abstract
Phosphoinositide lipids (PPIs) are enriched in the nucleus and are accumulated at DNA damage sites. Here, we investigate roles of nuclear PPIs in DNA damage response by sequestering specific PPIs with the expression of nuclear-targeted PH domains, which inhibits recruitment of Ataxia telangiectasia and Rad3-related protein (ATR) and reduces activation of Chk1. PPI-binding domains rapidly (< 1 s) accumulate at damage sites with local enrichment of PPIs. Accumulation of PIP3 in complex with the nuclear receptor protein, SF1, at damage sites requires phosphorylation by inositol polyphosphate multikinase (IPMK) and promotes nuclear actin assembly that is required for ATR recruitment. Suppressed ATR recruitment/activation is confirmed with latrunculin A and wortmannin treatment as well as IPMK or SF1 depletion. Other DNA repair pathways involving ATM and DNA-PKcs are unaffected by PPI sequestration. Together, these findings reveal that nuclear PPI metabolism mediates an early damage response through the IPMK-dependent pathway to specifically recruit ATR. Phosphoinositides are enriched in the nucleus and accumulate upon DNA damage but their role in responding to DNA damage is poorly defined. Here, the authors show that phosphoinositides rapidly accumulate at DNA damage sites and are required for ATR recruitment and subsequent Chk1 activation.
Collapse
|
10
|
Verma AK, Yadav A, Dewangan J, Singh SV, Mishra M, Singh PK, Rath SK. Isoniazid prevents Nrf2 translocation by inhibiting ERK1 phosphorylation and induces oxidative stress and apoptosis. Redox Biol 2015. [PMID: 26202867 PMCID: PMC4522592 DOI: 10.1016/j.redox.2015.06.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Isoniazid is used either alone or in combination with other drugs for the treatment of tuberculosis. It is also used for the prevention of tuberculosis. Chronic treatment of Isoniazid may cause severe liver damage leading to acute liver failure. The mechanism through which Isoniazid causes liver damage is investigated. Isoniazid treatment generates reactive oxygen species and induces apoptosis in Hep3B cells. It induces antioxidative and apoptotic genes leading to increase in mRNA expression and protein levels in Hep3B cells. Whole genome expression analysis of Hep3B cells treated with Isoniazid has resulted in differential expression of various genes playing prime role in regulation of apoptotic, antioxidative, DNA damage, cell signaling, cell proliferation and differentiation pathways. Isoniazid increased cytosolic Nrf2 protein level while decreased nuclear Nrf2 protein level. It also decreased ERK1 phosphorylation and treatment of Hep3B cells with ERK inhibitor followed by Isoniazid resulting in increased apoptosis in these cells. Two dimensional gel electrophoresis results have also shown differential expression of various protein species including heat shock proteins, proteins playing important role in oxidative stress, DNA damage, apoptosis, cell proliferation and differentiation. Results suggest that Isoniazid induces apoptosis through oxidative stress and also prevents Nrf2 translocation into the nucleus by reducing ERK1 phosphorylation thus preventing cytoprotective effect.
Collapse
Affiliation(s)
- Ajeet Kumar Verma
- PCS 103 Genotoxicity Lab, Division of Toxicology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Arti Yadav
- PCS 103 Genotoxicity Lab, Division of Toxicology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Jayant Dewangan
- PCS 103 Genotoxicity Lab, Division of Toxicology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Sarvendra Vikram Singh
- PCS 103 Genotoxicity Lab, Division of Toxicology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Manisha Mishra
- Plant Molecular Biology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India.
| | - Pradhyumna Kumar Singh
- Plant Molecular Biology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India.
| | - Srikanta Kumar Rath
- PCS 103 Genotoxicity Lab, Division of Toxicology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| |
Collapse
|
11
|
Li Y, Li H, Peng W, He XY, Huang M, Qiu D, Xue YB, Lu L. DNA-dependent protein kinase catalytic subunit inhibitor reverses acquired radioresistance in lung adenocarcinoma by suppressing DNA repair. Mol Med Rep 2015; 12:1328-34. [PMID: 25815686 DOI: 10.3892/mmr.2015.3505] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 02/24/2015] [Indexed: 11/06/2022] Open
Abstract
The mechanisms underlying lung cancer radioresistance remain to be fully elucidated. The DNA repair pathway is a predominant target of radiotherapy, which is considered to be involved in the acquired radioresistance of cancer cells. The present study aimed to establish a radioresistant cell model using the A549 human lung cancer cell line, and to further investigate the potential mechanisms underlying the radioresistance. The A549R radioresistant lung cancer cell variant was established by exposing the parental A549 cells to repeated γ-ray irradiation at a total dose of 60 Gy. Colony formation assays were then used to determine cell survival following γ-ray exposure. The established radioresistant cells were subsequently treated with or without the NU7026 DNA-PKcs inhibitor. The levels of DNA damage were determined by counting the number of fluorescent γ-H2AX foci in the cells. The cellular capacity for DNA repair was assessed using antibodies for the detection of various DNA repair pathway proteins. The radioresistant sub-clones exhibited significantly decreased survival following NU7026 treatment, compared with the parental cells, as determined by colony formation assays (P<0.05), and this finding was found to be dose-dependent. Treatment with the DNA-dependent protein kinase (DNA-PK) inhibitor significantly reduced γ-H2AX foci formation (P<0.05) following acute radiation exposure in the radioresistant sub-clones, compared with the parental control cells. The decreased levels of γ-H2AX were accompanied by an increase in the percentage of apoptotic cells in the radioresistant cell line following post-radiation treatment with the DNA-PKcs inhibitor. The expression levels of proteins associated with the DNA repair pathway were altered markedly in the cells treated with NU7026. The results of the present study suggested that radioresistance may be associated with enhanced DNA repair following exposure to radiation, resulting in reduced apoptosis. Therefore, the quantity of γ-H2AX determines the radioresistance of cells. The DNA repair pathway is important in mediating radioresistance, and treatment with the DNA-PKcs inhibitor, NU7026 restored the acquired radiation resistance.
Collapse
Affiliation(s)
- Yong Li
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Hang Li
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Wen Peng
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Xin-Yun He
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Min Huang
- Department of Occupational and Environmental Health, School of Public Health, Ningxia Medical University, Ningxia 750004, P.R. China
| | - Dong Qiu
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Ying-Bo Xue
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Liang Lu
- Department of Oncology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| |
Collapse
|
12
|
Chang CY, Leu JD, Lee YJ. The actin depolymerizing factor (ADF)/cofilin signaling pathway and DNA damage responses in cancer. Int J Mol Sci 2015; 16:4095-120. [PMID: 25689427 PMCID: PMC4346946 DOI: 10.3390/ijms16024095] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 01/26/2015] [Accepted: 02/09/2015] [Indexed: 01/06/2023] Open
Abstract
The actin depolymerizing factor (ADF)/cofilin protein family is essential for actin dynamics, cell division, chemotaxis and tumor metastasis. Cofilin-1 (CFL-1) is a primary non-muscle isoform of the ADF/cofilin protein family accelerating the actin filamental turnover in vitro and in vivo. In response to environmental stimulation, CFL-1 enters the nucleus to regulate the actin dynamics. Although the purpose of this cytoplasm-nucleus transition remains unclear, it is speculated that the interaction between CFL-1 and DNA may influence various biological responses, including DNA damage repair. In this review, we will discuss the possible involvement of CFL-1 in DNA damage responses (DDR) induced by ionizing radiation (IR), and the implications for cancer radiotherapy.
Collapse
Affiliation(s)
- Chun-Yuan Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan.
| | - Jyh-Der Leu
- Division of Radiation Oncology, Taipei City Hospital RenAi Branch, Taipei 106, Taiwan.
| | - Yi-Jang Lee
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan.
- Biophotonics & Molecular Imaging Research Center (BMIRC), National Yang-Ming University, Taipei 112, Taiwan.
| |
Collapse
|
13
|
Cannabinoid receptor CB2 is involved in tetrahydrocannabinol-induced anti-inflammation against lipopolysaccharide in MG-63 cells. Mediators Inflamm 2015; 2015:362126. [PMID: 25653478 PMCID: PMC4310496 DOI: 10.1155/2015/362126] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 12/22/2014] [Accepted: 12/24/2014] [Indexed: 01/17/2023] Open
Abstract
Cannabinoid Δ9-tetrahydrocannabinol (THC) is effective in treating osteoarthritis (OA), and the mechanism, however, is still elusive. Activation of cannabinoid receptor CB2 reduces inflammation; whether the activation CB2 is involved in THC-induced therapeutic action for OA is still unknown. Cofilin-1 is a cytoskeleton protein, participating in the inflammation of OA. In this study, MG-63 cells, an osteosarcoma cell-line, were exposed to lipopolysaccharide (LPS) to mimic the inflammation of OA. We hypothesized that the activation of CB2 is involved in THC-induced anti-inflammation in the MG-63 cells exposed to LPS, and the anti-inflammation is mediated by cofilin-1. We found that THC suppressed the release of proinflammatory factors, including tumor necrosis factor α (TNF-α), interleukin- (IL-) 1β, IL-6, and IL-8, decreased nuclear factor-κB (NF-κB) expression, and inhibited the upregulation of cofilin-1 protein in the LPS-stimulated MG-63 cells. However, administration of CB2 receptor antagonist or the CB2-siRNA, not CB1 antagonist AM251, partially abolished the THC-induced anti-inflammatory effects above. In addition, overexpression of cofilin-1 significantly reversed the THC-induced anti-inflammatory effects in MG-63 cells. These results suggested that CB2 is involved in the THC-induced anti-inflammation in LPS-stimulated MG-63 cells, and the anti-inflammation may be mediated by cofilin-1.
Collapse
|
14
|
Kapoor S. Cofilin-1 overexpression and its role in tumor growth and progression in systemic malignancies. Int J Radiat Biol 2014; 90:113. [PMID: 24350920 DOI: 10.3109/09553002.2013.825065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|