1
|
Xue X, Ma L, Zhang X, Xu X, Guo S, Wang Y, Qiu S, Cui J, Guo W, Yu Y, Sun F, Shi Y, Wang J. Tumour cells are sensitised to ferroptosis via RB1CC1‐mediated transcriptional reprogramming. Clin Transl Med 2022; 12:e747. [PMID: 35220675 PMCID: PMC8882240 DOI: 10.1002/ctm2.747] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/03/2022] [Accepted: 02/08/2022] [Indexed: 01/01/2023] Open
Abstract
Background Ferroptosis, a form of regulated cell death, is an important topic in the field of cancer research. However, the signalling pathways and factors that sensitise tumour cells to ferroptosis remain elusive. Methods We determined the level of ferroptosis in cells by measuring cell death and lipid reactive oxygen species (ROS) production. The expression of RB1‐inducible coiled‐coil 1 (RB1CC1) and related proteins was analyzed by immunoblotting and immunohistochemistry. Immunofluorescence was used to determine the subcellular localization of RB1CC1. We investigated the mechanism of RB1CC1 nuclear translocation by constructing a series of RB1CC1 variants. To examine the ferroptosis‐ and RB1CC1‐dependent transcriptional program in tumour cells, chromatin immunoprecipitation sequencing was performed. To assess the effect of c‐Jun N‐terminal kinase (JNK) agonists on strenthening imidazole ketone erastin (IKE) therapy, we constructed cell‐derived xenograft mouse models. Mouse models of hepatocellular carcinoma to elucidate the importance of Rb1cc1 in IKE‐based therapy of liver tumourigenesis. Results RB1CC1 is upregulated by lipid ROS and that nuclear translocation of phosphorylation of RB1CC1 at Ser537 was essential for sensitising ferroptosis in tumour cells. Upon ferroptosis induction, nuclear RB1CC1 sharing forkhead box (FOX)‐binding motifs recruits elongator acetyltransferase complex subunit 3 (ELP3) to strengthen H4K12Ac histone modifications within enhancers linked to ferroptosis. This also stimulated transcription of ferroptosis‐associated genes, such as coiled‐coil–helix–coiled‐coil–helix domain containing 3 (CHCHD3), which enhanced mitochondrial function to elevate mitochondrial ROS early following induction of ferroptosis. FDA‐approved JNK activators reinforced RB1CC1 nuclear translocation and sensitised cells to ferroptosis, which strongly suggested that JNK is upstream of RB1CC1. Nuclear localisation of RB1CC1 correlated with lipid peroxidation in clinical lung cancer specimens. Rb1cc1 was essential for ferroptosis agonists to suppress liver tumourigenesis in mice. Conclusions Our findings indicate that RB1CC1‐associated signalling sensitises tumour cells to ferroptosis and that targeting RB1CC1 may be beneficial for tumour treatment.
Collapse
Affiliation(s)
- Xiangfei Xue
- Department of Clinical Laboratory Shanghai Tenth People's Hospital of Tongji University Shanghai China
| | - Lifang Ma
- Department of Clinical Laboratory Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xiao Zhang
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xin Xu
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Susu Guo
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Yikun Wang
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Shiyu Qiu
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Jiangtao Cui
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Wanxin Guo
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Yongchun Yu
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Fenyong Sun
- Department of Clinical Laboratory Shanghai Tenth People's Hospital of Tongji University Shanghai China
| | - Yi Shi
- Bio‐X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education Shanghai Jiao Tong University Shanghai China
| | - Jiayi Wang
- Department of Clinical Laboratory Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
- Shanghai Institute of Thoracic Oncology Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine Shanghai China
| |
Collapse
|
2
|
Schoenherr C, Byron A, Griffith B, Loftus A, Wills JC, Munro AF, von Kriegsheim A, Frame MC. The autophagy protein Ambra1 regulates gene expression by supporting novel transcriptional complexes. J Biol Chem 2020; 295:12045-12057. [PMID: 32616651 PMCID: PMC7443501 DOI: 10.1074/jbc.ra120.012565] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/24/2020] [Indexed: 12/13/2022] Open
Abstract
Ambra1 is considered an autophagy and trafficking protein with roles in neurogenesis and cancer cell invasion. Here, we report that Ambra1 also localizes to the nucleus of cancer cells, where it has a novel nuclear scaffolding function that controls gene expression. Using biochemical fractionation and proteomics, we found that Ambra1 binds to multiple classes of proteins in the nucleus, including nuclear pore proteins, adaptor proteins such as FAK and Akap8, chromatin-modifying proteins, and transcriptional regulators like Brg1 and Atf2. We identified biologically important genes, such as Angpt1, Tgfb2, Tgfb3, Itga8, and Itgb7, whose transcription is regulated by Ambra1-scaffolded complexes, likely by altering histone modifications and Atf2 activity. Therefore, in addition to its recognized roles in autophagy and trafficking, Ambra1 scaffolds protein complexes at chromatin, regulating transcriptional signaling in the nucleus. This novel function for Ambra1, and the specific genes impacted, may help to explain the wider role of Ambra1 in cancer cell biology.
Collapse
Affiliation(s)
- Christina Schoenherr
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Adam Byron
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Billie Griffith
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Alexander Loftus
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Jimi C Wills
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Alison F Munro
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Alex von Kriegsheim
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Margaret C Frame
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom.
| |
Collapse
|
3
|
Rodríguez-Nogales C, Mura S, Couvreur P, Blanco-Prieto MJ. Squalenoyl-gemcitabine/edelfosine nanoassemblies: Anticancer activity in pediatric cancer cells and pharmacokinetic profile in mice. Int J Pharm 2020; 582:119345. [PMID: 32311470 DOI: 10.1016/j.ijpharm.2020.119345] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 04/14/2020] [Accepted: 04/15/2020] [Indexed: 12/13/2022]
Abstract
Despite the great advances accomplished in the treatment of pediatric cancers, recurrences and metastases still exacerbate prognosis in some aggressive solid tumors such as neuroblastoma and osteosarcoma. In view of the poor efficacy and toxicity of current chemotherapeutic treatments, we propose a single multitherapeutic nanotechnology-based strategy by co-assembling in the same nanodevice two amphiphilic antitumor agents: squalenoyl-gemcitabine and edelfosine. Homogeneous batches of nanoassemblies were easily formulated by the nanoprecipitation method. Their anticancer activity was tested in pediatric cancer cell lines and pharmacokinetic studies were performed in mice. In vitro assays revealed a synergistic effect when gemcitabine was co-administered with edelfosine. Squalenoyl-gemcitabine/edelfosine nanoassemblies were found to be capable of intracellular translocation in patient-derived metastatic pediatric osteosarcoma cells and showed a better antitumor profile than squalenoyl-gemcitabine nanoassemblies alone. The intravenous administration of this combinatorial nanomedicine in mice exhibited a controlled release behavior of gemcitabine and diminished edelfosine plasma peak concentrations. These findings make it a suitable pre-clinical candidate for childhood cancer therapy.
Collapse
Affiliation(s)
- C Rodríguez-Nogales
- Chemistry and Pharmaceutical Technology Department, Universidad de Navarra, Pamplona 31008, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona 31008, Spain
| | - S Mura
- Université Paris-Saclay, CNRS, Institut Galien Paris Sud, 92296 Châtenay-Malabry, France
| | - P Couvreur
- Université Paris-Saclay, CNRS, Institut Galien Paris Sud, 92296 Châtenay-Malabry, France.
| | - M J Blanco-Prieto
- Chemistry and Pharmaceutical Technology Department, Universidad de Navarra, Pamplona 31008, Spain; Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona 31008, Spain.
| |
Collapse
|
4
|
Valdez BC, Li Y, Murray D, Liu Y, Nieto Y, Champlin RE, Andersson BS. The PARP inhibitor olaparib enhances the cytotoxicity of combined gemcitabine, busulfan and melphalan in lymphoma cells. Leuk Lymphoma 2017; 58:2705-2716. [PMID: 28394191 DOI: 10.1080/10428194.2017.1306647] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The combination of gemcitabine (Gem), busulfan (Bu), and melphalan (Mel) is a promising regimen for autologous stem-cell transplantation (SCT) for lymphomas. To further improve the efficacy of [Gem + Bu + Mel], we added poly(ADP-ribose) polymerase (PARP) inhibitor olaparib (Ola). We hypothesized that Ola would inhibit the repair of damaged DNA caused by [Gem + Bu + Mel]. Exposure of J45.01 and Toledo cell lines to IC10-20 of individual drug inhibited proliferation by 6-16%; [Gem + Bu + Mel] by 20-27%; and [Gem + Bu + Mel + Ola] by 61-67%. The synergistic cytotoxicity of the four-drug combination may be attributed to activation of the DNA-damage response, inhibition of PARP activity and DNA repair, decreased mitochondrial membrane potential, increased production of reactive oxygen species, and activation of the SAPK/JNK stress signaling pathway, all of which may enhance apoptosis. Similar observations were obtained using mononuclear cells isolated from patients with T-cell lymphocytic leukemia. Our results provide a rationale for undertaking clinical trials of this drug combination for lymphoma patients undergoing SCT.
Collapse
Affiliation(s)
- Benigno C Valdez
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Yang Li
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - David Murray
- b Department of Experimental Oncology , Cross Cancer Institute , Edmonton , Canada
| | - Yan Liu
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Yago Nieto
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Richard E Champlin
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Borje S Andersson
- a Department of Stem Cell Transplantation and Cellular Therapy , The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| |
Collapse
|
5
|
Alkyl ether lipids, ion channels and lipid raft reorganization in cancer therapy. Pharmacol Ther 2016; 165:114-31. [DOI: 10.1016/j.pharmthera.2016.06.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 05/26/2016] [Indexed: 12/21/2022]
|
6
|
Valdez BC, Brammer JE, Li Y, Murray D, Teo EC, Liu Y, Hosing C, Nieto Y, Champlin RE, Andersson BS. Romidepsin enhances the cytotoxicity of fludarabine, clofarabine and busulfan combination in malignant T-cells. Leuk Res 2016; 47:100-8. [PMID: 27294334 DOI: 10.1016/j.leukres.2016.05.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/06/2016] [Accepted: 05/26/2016] [Indexed: 11/18/2022]
Abstract
Novel approaches to pre-transplant conditioning are needed to improve treatment of advanced T-cell malignancies. We investigated the synergism of fludarabine (Flu), clofarabine (Clo), busulfan (Bu), and romidepsin (Rom) in T-cell lines and patient-derived cell samples. [Flu+Clo+Bu+Rom] had combination indexes of 0.4-0.5 at ∼50% cytotoxicity in PEER and SUPT1 cells, suggesting synergism. Drug exposure resulted in histone modifications, DNA-damage response (DDR), increased reactive oxygen species (ROS), decreased glutathione (GSH) and mitochondrial membrane (MM) potential, and apoptosis. Similar activation of DDR and apoptosis was observed in patient samples. The PI3K-AKT-mTOR, NFκB, Raf-MEK-ERK, JAK-STAT and Wnt/β-catenin pro-survival pathways were inhibited by the 4-drug combination. The SAPK/JNK stress pathway was activated. A novel finding was the down-regulation of the drug transporter MRP1. We propose the following mechanisms of synergism: Flu, Clo and Rom induce histone modifications and chromatin remodeling, exposing DNA to Bu alkylation; the increased production of ROS, due to drug-mediated stress response and decreased GSH, damages the MM causing leakage of pro-apoptotic factors; down-regulation of MRP1 increases intracellular Bu concentration and exacerbates the DDR; and inhibition of multiple survival pathways. Our results provide the basis for a clinical trial to evaluate [Flu+Clo+Bu+Rom] as part of conditioning regimen for refractory T-cell malignancy patients undergoing stem cell transplantation.
Collapse
Affiliation(s)
- Benigno C Valdez
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Jonathan E Brammer
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yang Li
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David Murray
- Department of Experimental Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada
| | - Esmeralda C Teo
- Department of Hematology, Singapore General Hospital, Level 3 Academia, 20 College Road, Singapore, Singapore
| | - Yan Liu
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chitra Hosing
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yago Nieto
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Richard E Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Borje S Andersson
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
7
|
Xiong J, Bian J, Wang L, Zhou JY, Wang Y, Zhao Y, Wu LL, Hu JJ, Li B, Chen SJ, Yan C, Zhao WL. Dysregulated choline metabolism in T-cell lymphoma: role of choline kinase-α and therapeutic targeting. Blood Cancer J 2015; 5:287. [PMID: 25768400 PMCID: PMC4382653 DOI: 10.1038/bcj.2015.10] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 12/12/2014] [Accepted: 01/13/2015] [Indexed: 02/07/2023] Open
Abstract
Cancer cells have distinct metabolomic profile. Metabolic enzymes regulate key oncogenic signaling pathways and have an essential role on tumor progression. Here, serum metabolomic analysis was performed in 45 patients with T-cell lymphoma (TCL) and 50 healthy volunteers. The results showed that dysregulation of choline metabolism occurred in TCL and was related to tumor cell overexpression of choline kinase-α (Chokα). In T-lymphoma cells, pharmacological and molecular silencing of Chokα significantly decreased Ras-GTP activity, AKT and ERK phosphorylation and MYC oncoprotein expression, leading to restoration of choline metabolites and induction of tumor cell apoptosis/necropotosis. In a T-lymphoma xenograft murine model, Chokα inhibitor CK37 remarkably retarded tumor growth, suppressed Ras-AKT/ERK signaling, increased lysophosphatidylcholine levels and induced in situ cell apoptosis/necropotosis. Collectively, as a regulatory gene of aberrant choline metabolism, Chokα possessed oncogenic activity and could be a potential therapeutic target in TCL, as well as other hematological malignancies with interrupted Ras signaling pathways.
Collapse
Affiliation(s)
- J Xiong
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Bian
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - L Wang
- 1] State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China [2] Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| | - J-Y Zhou
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Y Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Y Zhao
- 1] State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China [2] Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| | - L-L Wu
- Department of Pathology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J-J Hu
- Department of Nuclear Medicine, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - B Li
- Department of Nuclear Medicine, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S-J Chen
- 1] State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China [2] Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| | - C Yan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - W-L Zhao
- 1] State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China [2] Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China
| |
Collapse
|
8
|
Valdez BC, Li Y, Murray D, Ji J, Liu Y, Popat U, Champlin RE, Andersson BS. Comparison of the cytotoxicity of cladribine and clofarabine when combined with fludarabine and busulfan in AML cells: Enhancement of cytotoxicity with epigenetic modulators. Exp Hematol 2015; 43:448-61.e2. [PMID: 25704054 DOI: 10.1016/j.exphem.2015.02.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 01/20/2015] [Accepted: 02/12/2015] [Indexed: 11/17/2022]
Abstract
Clofarabine (Clo), fludarabine (Flu), and busulfan (Bu) combinations are efficacious in hematopoietic stem cell transplantation for myeloid leukemia. We sought to determine whether the more affordable drug cladribine (Clad) can provide a viable alternative to Clo, with or without panobinostat (Pano) and 5-aza-2'-deoxycytidine (DAC). Both Clad+Flu+Bu and Clo+Flu+Bu combinations showed synergistic cytotoxicity in KBM3/Bu250(6), HL60, and OCI-AML3 cell lines. Cell exposure to these drug combinations resulted in 60%-80% inhibition of proliferation; activation of the ATM pathway; increase in histone modifications; decrease in HDAC3, HDAC4, HDAC5 and SirT7 proteins; decrease in mitochondrial membrane potential; activation of apoptosis and stress signaling pathways; and downregulation of the AKT pathway. These drug combinations activated DNA-damage response and apoptosis in primary cell samples from AML patients. At lower concentrations of Clad/Clo, Flu, and Bu, inclusion of Pano and DAC enhanced cell killing, increased histone modifications and DNA demethylation, and increased the levels of P16/INK4a, P15/INK4b and P21/Waf1/Cip1 proteins. The observed DNA demethylating activity of Clad and Clo may complement DAC activity; increase demethylation of the gene promoters for SFRP1, DKK3, and WIF1; and cause degradation of β-catenin in cells exposed to Clad/Clo+Flu+Bu+DAC+Pano. The overlapping activities of Clad/Clo+Flu+Bu, Pano, and DAC in DNA-damage formation and repair, histone modifications, DNA demethylation, and apoptosis may underlie their synergism. Our results provide a basis for supplanting Clo with Clad and for including epigenetic modifiers in the pre-hematopoietic stem cell transplantation conditioning regimen for myeloid leukemia patients.
Collapse
Affiliation(s)
- Benigno C Valdez
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Yang Li
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David Murray
- Department of Experimental Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada
| | - Jie Ji
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yan Liu
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Uday Popat
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Richard E Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Borje S Andersson
- Department of Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| |
Collapse
|
9
|
Chaudhary D, Robinson S, Romero DL. Recent Advances in the Discovery of Small Molecule Inhibitors of Interleukin-1 Receptor-Associated Kinase 4 (IRAK4) as a Therapeutic Target for Inflammation and Oncology Disorders. J Med Chem 2014; 58:96-110. [DOI: 10.1021/jm5016044] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Divya Chaudhary
- Nimbus Discovery, 25 First Street,
Suite 404, Cambridge, Massachusetts 02141, United States
| | - Shaughnessy Robinson
- Schrödinger Inc., 120 West Forty-Fifth
Street, New York, New York 10036, United States
| | - Donna L. Romero
- Nimbus Discovery, 25 First Street,
Suite 404, Cambridge, Massachusetts 02141, United States
| |
Collapse
|
10
|
Garg AD, Maes H, van Vliet AR, Agostinis P. Targeting the hallmarks of cancer with therapy-induced endoplasmic reticulum (ER) stress. Mol Cell Oncol 2014; 2:e975089. [PMID: 27308392 PMCID: PMC4905250 DOI: 10.4161/23723556.2014.975089] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 12/19/2022]
Abstract
The endoplasmic reticulum (ER) is at the center of a number of vital cellular processes such as cell growth, death, and differentiation, crosstalk with immune or stromal cells, and maintenance of proteostasis or homeostasis, and ER functions have implications for various pathologies including cancer. Recently, a number of major hallmarks of cancer have been delineated that are expected to facilitate the development of anticancer therapies. However, therapeutic induction of ER stress as a strategy to broadly target multiple hallmarks of cancer has been seldom discussed despite the fact that several primary or secondary ER stress-inducing therapies have been found to exhibit positive clinical activity in cancer patients. In the present review we provide a brief historical overview of the major discoveries and milestones in the field of ER stress biology with important implications for anticancer therapy. Furthermore, we comprehensively discuss possible strategies enabling the targeting of multiple hallmarks of cancer with therapy-induced ER stress.
Collapse
Affiliation(s)
- Abhishek D Garg
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Hannelore Maes
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Alexander R van Vliet
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| | - Patrizia Agostinis
- Cell Death Research & Therapy (CDRT) Laboratory; Department for Cellular and Molecular Medicine; KU Leuven University of Leuven ; Leuven, Belgium
| |
Collapse
|
11
|
Szedlak A, Paternostro G, Piermarocchi C. Control of asymmetric Hopfield networks and application to cancer attractors. PLoS One 2014; 9:e105842. [PMID: 25170874 PMCID: PMC4149479 DOI: 10.1371/journal.pone.0105842] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 07/24/2014] [Indexed: 12/20/2022] Open
Abstract
The asymmetric Hopfield model is used to simulate signaling dynamics in gene regulatory networks. The model allows for a direct mapping of a gene expression pattern into attractor states. We analyze different control strategies aimed at disrupting attractor patterns using selective local fields representing therapeutic interventions. The control strategies are based on the identification of signaling bottlenecks, which are single nodes or strongly connected clusters of nodes that have a large impact on the signaling. We provide a theorem with bounds on the minimum number of nodes that guarantee control of bottlenecks consisting of strongly connected components. The control strategies are applied to the identification of sets of proteins that, when inhibited, selectively disrupt the signaling of cancer cells while preserving the signaling of normal cells. We use an experimentally validated non-specific and an algorithmically-assembled specific B cell gene regulatory network reconstructed from gene expression data to model cancer signaling in lung and B cells, respectively. Among the potential targets identified here are TP53, FOXM1, BCL6 and SRC. This model could help in the rational design of novel robust therapeutic interventions based on our increasing knowledge of complex gene signaling networks.
Collapse
Affiliation(s)
- Anthony Szedlak
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, United States of America
| | - Giovanni Paternostro
- Sanford-Burnham Medical Research Institute, La Jolla, California, United States of America
- Salgomed Inc., Del Mar, California, United States of America
| | - Carlo Piermarocchi
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, United States of America
- Salgomed Inc., Del Mar, California, United States of America
| |
Collapse
|