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Sirtuin1 (SIRT1) is involved in the anticancer effect of black raspberry anthocyanins in colorectal cancer. Eur J Nutr 2023; 62:395-406. [PMID: 36056948 DOI: 10.1007/s00394-022-02989-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 08/11/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE Abnormal acetylation modification is a common epigenetic change in tumorigenesis and is closely related to the progression of colorectal cancer (CRC). Our previous studies have suggested that black raspberry (BRB) anthocyanins have a significant chemopreventive effect against CRC. This study investigated whether protein acetylation plays an important role in BRB anthocyanins-mediated regulation of CRC progression. METHODS We used the AOM-induced CRC mouse model and the CRC cell lines SW480 and Caco-2 to explore the potential role of acetylation of histone H4 and NF-κB signaling pathway-related proteins (non-histone proteins) in the antitumor process mediated by BRB anthocyanins. The expression of related proteins was detected by western blot. ROS level was detected by immunofluorescence. RESULTS BRB anthocyanins affected the acetylation level by down-regulating the expression of Sirtuin1 (SIRT1) and up-regulating the expression of MOF and EP300. The acetylation level of lysine sites on histone H4 (H4K5, H4K12 and H4K16) was increased. Furthermore, following BRB anthocyanins treatment, the expression of ac-p65 was significantly up-regulated and the NF-κB signal pathway was activated, which in turn up-regulated Bax expression and inhibited Bcl-2, cyclin-D1, c-myc and NLRP3 expression to promote CRC cell cycle arrest, apoptosis and relieve inflammation. CONCLUSION The findings suggested that protein acetylation could play a critical role in BRB anthocyanins-regulated CRC development.
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Exosomal annexin A6 induces gemcitabine resistance by inhibiting ubiquitination and degradation of EGFR in triple-negative breast cancer. Cell Death Dis 2021; 12:684. [PMID: 34238922 PMCID: PMC8266800 DOI: 10.1038/s41419-021-03963-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/19/2021] [Accepted: 06/22/2021] [Indexed: 01/07/2023]
Abstract
Exosomes are carriers of intercellular information that regulate the tumor microenvironment, and they have an essential role in drug resistance through various mechanisms such as transporting RNA molecules and proteins. Nevertheless, their effects on gemcitabine resistance in triple-negative breast cancer (TNBC) are unclear. In the present study, we examined the effects of exosomes on TNBC cell viability, colony formation, apoptosis, and annexin A6 (ANXA6)/EGFR expression. We addressed their roles in gemcitabine resistance and the underlying mechanism. Our results revealed that exosomes derived from resistant cancer cells improved cell viability and colony formation and inhibited apoptosis in sensitive cancer cells. The underlying mechanism included the transfer of exosomal ANXA6 from resistant cancer cells to sensitive cancer cells. Isobaric peptide labeling–liquid chromatography–tandem mass spectrometry and western blotting revealed that ANXA6 was upregulated in resistant cancer cells and their derived exosomes. Sensitive cancer cells exhibited resistance with increased viability and colony formation and decreased apoptosis when ANXA6 was stably overexpressed. On the contrary, knockdown ANXA6 restored the sensitivity of cells to gemcitabine. Co-immunoprecipitation expression and GST pulldown assay demonstrated that exosomal ANXA6 and EGFR could interact with each other and exosomal ANXA6 was associated with the suppression of EGFR ubiquitination and downregulation. While adding lapatinib reversed gemcitabine resistance induced by exosomal ANXA6. Moreover, ANXA6 and EGFR protein expression was correlated in TNBC tissues, and exosomal ANXA6 levels at baseline were lower in patients with highly sensitive TNBC than those with resistant TNBC when treated with first-line gemcitabine-based chemotherapy. In conclusion, resistant cancer cell-derived exosomes induced gemcitabine resistance via exosomal ANXA6, which was associated with the inhibition of EGFR ubiquitination and degradation. Exosomal ANXA6 levels in the serum of patients with TNBC might be predictive of the response to gemcitabine-based chemotherapy.
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3
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Ge M, Li D, Qiao Z, Sun Y, Kang T, Zhu S, Wang S, Xiao H, Zhao C, Shen S, Xu Z, Liu H. Restoring MLL reactivates latent tumor suppression-mediated vulnerability to proteasome inhibitors. Oncogene 2020; 39:5888-5901. [PMID: 32733069 PMCID: PMC7471105 DOI: 10.1038/s41388-020-01408-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/16/2020] [Accepted: 07/23/2020] [Indexed: 12/15/2022]
Abstract
MLL undergoes multiple distinct chromosomal translocations to yield aggressive leukemia with dismal outcomes. Besides their well-established role in leukemogenesis, MLL fusions also possess latent tumor-suppressive activity, which can be exploited as effective cancer treatment strategies using pharmacological means such as proteasome inhibitors (PIs). Here, using MLL-rearranged xenografts and MLL leukemic cells as models, we show that wild-type MLL is indispensable for the latent tumor-suppressive activity of MLL fusions. MLL dysfunction, shown as loss of the chromatin accumulation and subsequent degradation of MLL, compromises the latent tumor suppression of MLL-AF4 and is instrumental for the acquired PI resistance. Mechanistically, MLL dysfunction is caused by chronic PI treatment-induced epigenetic reprogramming through the H2Bub-ASH2L-MLL axis and can be specifically restored by histone deacetylase (HDAC) inhibitors, which induce histone acetylation and recruits MLL on chromatin to promote cell cycle gene expression. Our findings not only demonstrate the mechanism underlying the inevitable acquisition of PI resistance in MLL leukemic cells, but also illustrate that preventing the emergence of PI-resistant cells constitutes a novel rationale for combination therapy with PIs and HDAC inhibitors in MLL leukemias.
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Affiliation(s)
- Maolin Ge
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Dan Li
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Zhi Qiao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 200240, Shanghai, China
| | - Yan Sun
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Ting Kang
- Department of Oncology, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, 200092, Shanghai, China
| | - Shouhai Zhu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Shifen Wang
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fujian Medical University Union Hospital, 350001, Fuzhou, China
| | - Hua Xiao
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 200240, Shanghai, China
| | - Chunjun Zhao
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China
| | - Shuhong Shen
- Key Laboratory of Pediatric Hematology and Oncology Ministry of Health, Department of Hematology & Oncology, Pediatric Translational Medicine Institute, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, 200127, Shanghai, China.
| | - Zhenshu Xu
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fujian Medical University Union Hospital, 350001, Fuzhou, China.
| | - Han Liu
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, China.
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4
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Application of an ex-vivo drug sensitivity platform towards achieving complete remission in a refractory T-cell lymphoma. Blood Cancer J 2020; 10:9. [PMID: 31988286 PMCID: PMC6985240 DOI: 10.1038/s41408-020-0276-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/05/2020] [Accepted: 01/10/2020] [Indexed: 01/02/2023] Open
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5
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Wang P, Wang Z, Liu J. Role of HDACs in normal and malignant hematopoiesis. Mol Cancer 2020; 19:5. [PMID: 31910827 PMCID: PMC6945581 DOI: 10.1186/s12943-019-1127-7] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/26/2019] [Indexed: 01/09/2023] Open
Abstract
Normal hematopoiesis requires the accurate orchestration of lineage-specific patterns of gene expression at each stage of development, and epigenetic regulators play a vital role. Disordered epigenetic regulation has emerged as a key mechanism contributing to hematological malignancies. Histone deacetylases (HDACs) are a series of key transcriptional cofactors that regulate gene expression by deacetylation of lysine residues on histone and nonhistone proteins. In normal hematopoiesis, HDACs are widely involved in the development of various lineages. Their functions involve stemness maintenance, lineage commitment determination, cell differentiation and proliferation, etc. Deregulation of HDACs by abnormal expression or activity and oncogenic HDAC-containing transcriptional complexes are involved in hematological malignancies. Currently, HDAC family members are attractive targets for drug design, and a variety of HDAC-based combination strategies have been developed for the treatment of hematological malignancies. Drug resistance and limited therapeutic efficacy are key issues that hinder the clinical applications of HDAC inhibitors (HDACis). In this review, we summarize the current knowledge of how HDACs and HDAC-containing complexes function in normal hematopoiesis and highlight the etiology of HDACs in hematological malignancies. Moreover, the implication and drug resistance of HDACis are also discussed. This review presents an overview of the physiology and pathology of HDACs in the blood system.
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Affiliation(s)
- Pan Wang
- The Xiangya Hospital, Central South University, Changsha, 410005, Hunan, China.,Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410078, Hunan, China
| | - Zi Wang
- The Xiangya Hospital, Central South University, Changsha, 410005, Hunan, China. .,Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410078, Hunan, China.
| | - Jing Liu
- Molecular Biology Research Center and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410078, Hunan, China.
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6
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Passero FC, Ravi D, McDonald JT, Beheshti A, David KA, Evens AM. Combinatorial ixazomib and belinostat therapy induces NFE2L2-dependent apoptosis in Hodgkin and T-cell lymphoma. Br J Haematol 2019; 188:295-308. [PMID: 31452195 DOI: 10.1111/bjh.16160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/13/2019] [Indexed: 12/11/2022]
Abstract
Ixazomib activity and transcriptomic analyses previously established in T cell (TCL) and Hodgkin (HL) lymphoma models predicted synergistic activity for histone deacetylase (HDAC) inhibitory combination. In this present study, we determined the mechanistic basis for ixazomib combination with the HDAC inhibitor, belinostat, in HL and TCL cells lines (ixazomib-sensitive/resistant clones) and primary tumour cells. In ixazomib-treated TCL and HL cells, transient inhibition followed by full recovery of proteasomal activity observed was accompanied by induction of proteasomal gene expression with NFE2L2 (also termed NRF2) as a prominent upstream regulator. Downregulation of both NFE2L2 and proteasomal gene expression (validated by quantitative real time polymerase chain reaction) occurred with belinostat treatment in Jurkat and L428 cells. In addition, CRISPR/Cas9 mediated knockdown of NFE2L2 in Jurkat cells resulted in a significant decrease in cell viability with ixazomib compared with untreated control cells. Using transcriptomic and proteasomal activity evaluation of ixazomib, belinostat, or ixazomib + belinostat treated cells, we observed that NFE2L2, proteasome gene expression and functional recovery were abrogated by ixazomib + belinostat combination, resulting in synergistic drug activity in ixazomib-sensitive and -resistant cell lines and primary cells. Altogether, these results suggest that the synergistic activity of ixazomib + belinostat is mediated via inhibition NFE2L2-dependent proteasomal recovery and extended proteasomal inhibition culminating in increased cell death.
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Affiliation(s)
- Frank C Passero
- Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Dashnamoorthy Ravi
- Division of Blood Disorders, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | | | | | - Kevin A David
- Division of Blood Disorders, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Andrew M Evens
- Division of Blood Disorders, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
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7
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Dang Q, Chen L, Xu M, You X, Zhou H, Zhang Y, Shi W. The γ-secretase inhibitor GSI-I interacts synergistically with the proteasome inhibitor bortezomib to induce ALK+ anaplastic large cell lymphoma cell apoptosis. Cell Signal 2019; 59:76-84. [PMID: 30878517 DOI: 10.1016/j.cellsig.2019.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 12/21/2022]
Abstract
Single agent treatment of the γ-secretase inhibitor (GSI-I) or proteasome inhibitor in anaplastic lymphoma kinase positive anaplastic large cell lymphoma (ALK+ ALCL) shows limited response and considerable toxicity. Here, we examined the effects of the combination of low dose GSI-I and the proteasome inhibitor bortezomib (BTZ) in ALK+ ALCL cells in vivo and in vitro. We found that ALK+ ALCL cells treated with the BTZ and GSI-I combination treatment showed elevated apoptosis, consistent with increased caspase activation, compared with BTZ or GSI-I alone. The combination treatment also inhibited AKT and extracellular signal-related kinase pathways, as well as stress-related cascades, including the c-jun N-terminal kinase and stress-activated kinases. Moreover, combined treatment in a murine xenograft model resulted in increased apoptosis in tumor tissues and reduced tumor growth. Our results reveal the synergistic anti-tumor effects of low dose inhibitors against γ-secretase and the proteasome and suggest the potential application of the tolerable BTZ/GSI-I combined agents in treating ALK+ ALCL in future clinical treatment.
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Affiliation(s)
- Qingxiu Dang
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Lili Chen
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Mengqi Xu
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Xuefen You
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Hong Zhou
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China
| | - Yaping Zhang
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
| | - Wenyu Shi
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong 226001, Jiangsu, China.
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8
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Hillert EK, Brnjic S, Zhang X, Mazurkiewicz M, Saei AA, Mofers A, Selvaraju K, Zubarev R, Linder S, D'Arcy P. Proteasome inhibitor b-AP15 induces enhanced proteotoxicity by inhibiting cytoprotective aggresome formation. Cancer Lett 2019; 448:70-83. [PMID: 30768956 DOI: 10.1016/j.canlet.2019.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/28/2018] [Accepted: 02/01/2019] [Indexed: 01/26/2023]
Abstract
Proteasome inhibitors have been shown to induce cell death in cancer cells by triggering an acute proteotoxic stress response characterized by accumulation of poly-ubiquitinated proteins, ER stress and the production of reactive oxygen species. The aggresome pathway has been described as an escape mechanism from proteotoxicity by sequestering toxic cellular aggregates. Here we show that b-AP15, a small-molecule inhibitor of proteasomal deubiquitinase activity, induces poly-ubiquitin accumulation in absence of aggresome formation. b-AP15 was found to affect organelle transport in treated cells, raising the possibility that microtubule-transport of toxic protein aggregates is inhibited, leading to enhanced cytotoxicity. In contrast to the antiproliferative effects of the clinically used proteasome inhibitor bortezomib, the effects of b-AP15 are not further enhanced by the histone deacetylase inhibitor suberoylanilide hydroxamic acid (SAHA). Our results suggest an inhibitory effect of b-AP15 on the transport of misfolded proteins, resulting in a lack of aggresome formation, and a strong proteotoxic stress response.
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Affiliation(s)
| | - Slavica Brnjic
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | - Xiaonan Zhang
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
| | | | - Amir Ata Saei
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Arjan Mofers
- Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Karthik Selvaraju
- Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Roman Zubarev
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Stig Linder
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden; Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Padraig D'Arcy
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden; Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.
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9
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Huang IT, Dhungel B, Shrestha R, Bridle KR, Crawford DHG, Jayachandran A, Steel JC. Spotlight on Bortezomib: potential in the treatment of hepatocellular carcinoma. Expert Opin Investig Drugs 2018; 28:7-18. [PMID: 30474444 DOI: 10.1080/13543784.2019.1551359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION This study reviews the evidence for the use of Bortezomib (BZB), a first-in-class proteasome inhibitor in advanced Hepatocellular carcinoma (HCC). This review aims to delineate the role of BZB within the management of non-surgical and metastatic HCC, either as an alternative or as an adjunct to the current treatment paradigm. AREAS COVERED In addition to BZB pharmacology and mechanism of action, safety and tolerance profiles of the drug obtained from clinical trials are explored. The utility of BZB as a therapeutic agent either alone or in combination with other therapies against HCC, including its application in both preclinical and clinical settings has been reviewed. In particular, we highlight the importance of preclinical evaluation of BZB as a combinatorial agent in synergism with other therapies for the use in the management of HCC. EXPERT OPINION There has been much interest surrounding the use of BZB, a first-in-class proteasome inhibitor for HCC therapy. The discernment of outcomes of BZB clinical trials for HCC need to take into consideration the disease-specific factors that can affect survival outcomes including patient selection and aetiological differences. Further preclinical testing of BZB in combination with other therapeutic modalities can be important for eliciting enhanced anti-HCC effects.
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Affiliation(s)
- I-Tao Huang
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Bijay Dhungel
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Ritu Shrestha
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Kim R Bridle
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Darrell H G Crawford
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Aparna Jayachandran
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,b Gallipoli Medical Research Institute , Greenslopes Private Hospital , Brisbane , Australia
| | - Jason C Steel
- a School of Clinical Medicine , The University of Queensland , Brisbane , Australia.,c School of Health, Medical and Applied Sciences , CQ University , Rockhampton , Australia
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10
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DNMTi/HDACi combined epigenetic targeted treatment induces reprogramming of myeloma cells in the direction of normal plasma cells. Br J Cancer 2018; 118:1062-1073. [PMID: 29500406 PMCID: PMC5931098 DOI: 10.1038/s41416-018-0025-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 01/10/2018] [Accepted: 01/15/2018] [Indexed: 01/18/2023] Open
Abstract
Background Multiple myeloma (MM) is the second most common hematologic malignancy. Aberrant epigenetic modifications have been reported in MM and could be promising therapeutic targets. As response rates are overall limited but deep responses occur, it is important to identify those patients who could indeed benefit from epigenetic-targeted therapy. Methods Since HDACi and DNMTi combination have potential therapeutic value in MM, we aimed to build a GEP-based score that could be useful to design future epigenetic-targeted combination trials. In addition, we investigated the changes in GEP upon HDACi/DNMTi treatment. Results We report a new gene expression-based score to predict MM cell sensitivity to the combination of DNMTi/HDACi. A high Combo score in MM patients identified a group with a worse overall survival but a higher sensitivity of their MM cells to DNMTi/HDACi therapy compared to a low Combo score. In addition, treatment with DNMTi/HDACi downregulated IRF4 and MYC expression and appeared to induce a mature BMPC plasma cell gene expression profile in myeloma cell lines. Conclusion In conclusion, we developed a score for the prediction of primary MM cell sensitivity to DNMTi/HDACi and found that this combination could be beneficial in high-risk patients by targeting proliferation and inducing maturation.
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Gao M, Chen G, Wang H, Xie B, Hu L, Kong Y, Yang G, Tao Y, Han Y, Wu X, Zhang Y, Dai B, Shi J. Therapeutic potential and functional interaction of carfilzomib and vorinostat in T-cell leukemia/lymphoma. Oncotarget 2018; 7:29102-15. [PMID: 27074555 PMCID: PMC5045381 DOI: 10.18632/oncotarget.8667] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 03/28/2016] [Indexed: 11/25/2022] Open
Abstract
We previously showed that the proteasome inhibitor carfilzomib and the histone deacetylase inhibitor (HDACI) vorinostat cooperated to induce cell apoptosis in one T-cell leukemia cell line in vitro, implying the possibility of the combination treatment of carfilzomib and vorinostat as a potential therapeutic strategy in human T-cell leukemia/lymphoma. Here we report that combination treatment of carfilzomib and vorinostat enhanced cell apoptosis and induced a marked increase in G2-M arrest, reactive oxygen species (ROS) generation, and activated the members of mitogen-activated protein kinases (MAPK) family, including the stress-activated kinases JNK, p38MAPK, and ERK1/2. Carfilzomib/vorinostat-mediated apoptosis was blocked by the ROS scavenger N-acetylcysteine (NAC). The JNK inhibitor SP600125 and the p38MAPK inhibitor SB203580 but not the MEK1/2 inhibitor U0126 significantly attenuated carfilzomib/vorinostat-induced apoptosis, suggesting that p38MAPK and JNK activation contribute to carfilzomib and vorinostat-induced apoptosis. This was further confirmed via short hairpin (shRNA) RNA knockdown of p38MAPK and JNK. Interestingly, the ROS scavenger NAC attenuated carfilzomib/vorinostat-mediated activation of p38MAPK and JNK. However, p38MAPK shRNA but not JNK shRNA diminished carfilzomib/vorinostat-mediated ROS generation. In contrast, overexpression of p38MAPK significantly increased carfilzomib/vorinostat-mediated ROS generation, suggesting that an amplification loop exists between ROS and p38MAPK pathway. Combination treatment of carfilzomib and vorinostat enhanced their individual antitumor activity in both a human xenograft model as well as human primary T-cell leukemia/lymphoma cells. These data suggest the potential clinical benefit and underlying molecular mechanism of combining carfilzomib with vorinostat in the treatment of human T-cell leukemia/lymphoma.
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Affiliation(s)
- Minjie Gao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Gege Chen
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Houcai Wang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bingqian Xie
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liangning Hu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yuanyuan Kong
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guang Yang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Tao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ying Han
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaosong Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yiwen Zhang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Bojie Dai
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,College of Life Science and Technology, Tongji University, Shanghai, China
| | - Jumei Shi
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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12
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Therapeutic Strategies against Epstein-Barr Virus-Associated Cancers Using Proteasome Inhibitors. Viruses 2017; 9:v9110352. [PMID: 29160853 PMCID: PMC5707559 DOI: 10.3390/v9110352] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 12/15/2022] Open
Abstract
Epstein-Barr virus (EBV) is closely associated with several lymphomas (endemic Burkitt lymphoma, Hodgkin lymphoma and nasal NK/T-cell lymphoma) and epithelial cancers (nasopharyngeal carcinoma and gastric carcinoma). To maintain its persistence in the host cells, the virus manipulates the ubiquitin-proteasome system to regulate viral lytic reactivation, modify cell cycle checkpoints, prevent apoptosis and evade immune surveillance. In this review, we aim to provide an overview of the mechanisms by which the virus manipulates the ubiquitin-proteasome system in EBV-associated lymphoid and epithelial malignancies, to evaluate the efficacy of proteasome inhibitors on the treatment of these cancers and discuss potential novel viral-targeted treatment strategies against the EBV-associated cancers.
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13
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Drug screening of cancer cell lines and human primary tumors using droplet microfluidics. Sci Rep 2017; 7:9109. [PMID: 28831060 PMCID: PMC5567315 DOI: 10.1038/s41598-017-08831-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/19/2017] [Indexed: 01/23/2023] Open
Abstract
Precision Medicine in Oncology requires tailoring of therapeutic strategies to individual cancer patients. Due to the limited quantity of tumor samples, this proves to be difficult, especially for early stage cancer patients whose tumors are small. In this study, we exploited a 2.4 × 2.4 centimeters polydimethylsiloxane (PDMS) based microfluidic chip which employed droplet microfluidics to conduct drug screens against suspended and adherent cancer cell lines, as well as cells dissociated from primary tumor of human patients. Single cells were dispersed in aqueous droplets and imaged within 24 hours of drug treatment to assess cell viability by ethidium homodimer 1 staining. Our results showed that 5 conditions could be screened for every 80,000 cells in one channel on our chip under current circumstances. Additionally, screening conditions have been adapted to both suspended and adherent cancer cells, giving versatility to potentially all types of cancers. Hence, this study provides a powerful tool for rapid, low-input drug screening of primary cancers within 24 hours after tumor resection from cancer patients. This paves the way for further technological advancement to cutting down sample size and increasing drug screening throughput in advent to personalized cancer therapy.
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Philippe L, Ceroi A, Bôle-Richard E, Jenvrin A, Biichle S, Perrin S, Limat S, Bonnefoy F, Deconinck E, Saas P, Garnache-Ottou F, Angelot-Delettre F. Bortezomib as a new therapeutic approach for blastic plasmacytoid dendritic cell neoplasm. Haematologica 2017; 102:1861-1868. [PMID: 28798071 PMCID: PMC5664390 DOI: 10.3324/haematol.2017.169326] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 08/08/2017] [Indexed: 12/16/2022] Open
Abstract
Blastic plasmacytoid dendritic cell neoplasm is an aggressive hematologic malignancy with a poor prognosis. No consensus regarding optimal treatment modalities is currently available. Targeting the nuclear factor-kappa B pathway is considered a promising approach since blastic plasmacytoid dendritic cell neoplasm has been reported to exhibit constitutive activation of this pathway. Moreover, nuclear factor-kappa B inhibition in blastic plasmacytoid dendritic cell neoplasm cell lines, achieved using either an experimental specific inhibitor JSH23 or the clinical drug bortezomib, interferes in vitro with leukemic cell proliferation and survival. Here we extended these data by showing that primary blastic plasmacytoid dendritic cell neoplasm cells from seven patients were sensitive to bortezomib-induced cell death. We confirmed that bortezomib efficiently inhibits the phosphorylation of the RelA nuclear factor-kappa B subunit in blastic plasmacytoid dendritic cell neoplasm cell lines and primary cells from patients in vitro and in vivo in a mouse model. We then demonstrated that bortezomib can be associated with other drugs used in different chemotherapy regimens to improve its impact on leukemic cell death. Indeed, when primary blastic plasmacytoid dendritic cell neoplasm cells from a patient were grafted into mice, bortezomib treatment significantly increased the animals’ survival, and was associated with a significant decrease of circulating leukemic cells and RelA nuclear factor-kappa B subunit expression. Overall, our results provide a rationale for the use of bortezomib in combination with other chemotherapy for the treatment of patients with blastic plasmacytoid dendritic cell neoplasm. Based on our data, a prospective clinical trial combining proteasome inhibitor with classical drugs could be envisaged.
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Affiliation(s)
- Laure Philippe
- CHRU Besançon, Hematology, Besançon, France.,Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | - Adam Ceroi
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | - Elodie Bôle-Richard
- CHRU Besançon, Hematology, Besançon, France.,Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | - Alizée Jenvrin
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France.,EFS Bourgogne Franche-Comté, Laboratoire d'Hématologie, Besançon, France
| | - Sabeha Biichle
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | | | - Samuel Limat
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France.,CHRU Besançon, Pharmacy, Besançon, France
| | - Francis Bonnefoy
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | - Eric Deconinck
- CHRU Besançon, Hematology, Besançon, France.,Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France
| | - Philippe Saas
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France.,CHRU Besançon, INSERM, CIC-1431, Plateforme de BioMonitoring, Besançon, France
| | - Francine Garnache-Ottou
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France.,EFS Bourgogne Franche-Comté, Laboratoire d'Hématologie, Besançon, France
| | - Fanny Angelot-Delettre
- Univ. Bourgogne Franche-Comté, INSERM, EFS Bourgogne Franche-Comté, UMR1098, Interactions Hôte-Greffon-Tumeur - Ingénierie Cellulaire et Génique, LabEX LipSTIC, Besançon, France .,EFS Bourgogne Franche-Comté, Laboratoire d'Hématologie, Besançon, France
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16
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Du X, Tong J, Lu H, He C, Du S, Jia P, Zhao W, Xu H, Li J, Shen Z, Wu Y, Tong J, Zhou L. Combination of bortezomib and daunorubicin in the induction of apoptosis in T-cell acute lymphoblastic leukemia. Mol Med Rep 2017; 16:101-108. [PMID: 28487980 PMCID: PMC5482122 DOI: 10.3892/mmr.2017.6554] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 02/27/2017] [Indexed: 12/16/2022] Open
Abstract
Despite advances in the treatment of T‑cell acute lymphoblastic leukemia (T‑ALL), the outcome of T‑ALL treatment remains unsatisfactory, therefore, more effective treatment is urgently required. The present study examined the cytotoxicities of bortezomib in combination with daunorubicin against human Jurkat and Molt‑4 T‑ALL cells and primary T‑ALL cells. Compared with treatment alone, co‑exposure of cells to bortezomib and daunorubicin resulted in a significant increase in cell death in the Jurkat cells, as evidenced by the increased percentage of Annexin V‑positive cells, the formation of apoptotic bodies. In addition, the administration sequence of bortezomib and daunorubicin had an effect on cell viability. Treatment with bortezomib followed by daunorubicin treatment was more effective, compared with treatment with daunorubicin followed by bortezomib. Co-treatment with bortezomib and daunorubicin markedly enhanced the activation of caspase‑3, ‑8 and ‑9, which was reversed by the pan‑caspase inhibitor, Z‑VAD‑FMK. In addition, cotreatment with bortezomib and daunorubicin enhanced the collapse of mitochondrial transmembrane potential and upregulated the proapoptotic protein, B‑cell lymphoma 2 (Bcl‑2)‑interacting mediator of cell death (Bim), but not Bcl‑2 or Bcl‑extra large. Consistent with this, it was demonstrated that cotreatment of bortezomib and daunorubicin efficiently induced apoptosis in primary T‑ALL cells, and cell death was associated with the collapse of mitochondrial transmembrane potential and the upregulation of Bim. Taken together, these findings indicated that the combination of bortezomib and daunorubicin significantly enhanced their apoptosis‑inducing effect in T‑ALL cells, which may warrant further investigation in preclinical and clinical investigations.
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Affiliation(s)
- Xin Du
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Jia Tong
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Hongying Lu
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Cong He
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Shenghong Du
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Peimin Jia
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Weili Zhao
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Hanzhang Xu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E‑Institutes, Key Laboratory of Cell Differentiation and Apoptosis of The Chinese Ministry of Education, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Junmin Li
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Zhixiang Shen
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yingli Wu
- Hongqiao International Institute of Medicine, Shanghai Tongren Hospital/Faculty of Basic Medicine, Department of Pathophysiology, Chemical Biology Division of Shanghai Universities E‑Institutes, Key Laboratory of Cell Differentiation and Apoptosis of The Chinese Ministry of Education, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Jianhua Tong
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Li Zhou
- State Key Laboratory of Medical Genomics, Department of Hematology, Faculty of Medical Laboratory Science, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
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Induction of MAPK- and ROS-dependent autophagy and apoptosis in gastric carcinoma by combination of romidepsin and bortezomib. Oncotarget 2016; 7:4454-67. [PMID: 26683357 PMCID: PMC4826218 DOI: 10.18632/oncotarget.6601] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/28/2015] [Indexed: 12/25/2022] Open
Abstract
Proteasome inhibitors and histone deacetylase (HDAC) inhibitors can synergistically induce apoptotic cell death in certain cancer cell types but their combinatorial effect on the induction of autophagy remains unknown. Here, we investigated the combinatorial effects of a proteasome inhibitor, bortezomib, and an HDAC inhibitor, romidepsin, on the induction of apoptotic and autophagic cell death in gastric carcinoma (GC) cells. Isobologram analysis showed that low nanomolar concentrations of bortezomib/romidepsin could synergistically induce killing of GC cells. The synergistic killing was due to the summative effect of caspase-dependent intrinsic apoptosis and caspase-independent autophagy. The autophagic cell death was dependent on the activation of MAPK family members (ERK1/2 and JNK), and generation of reactive oxygen species (ROS), but was independent of Epstein-Barr virus infection. In vivo, bortezomib/romidepsin also significantly induced apoptosis and autophagy in GC xenografts in nude mice. This is the first report demonstrating the potent effect of combination of HDAC and proteasome inhibitors on the induction of MAPK- and ROS-dependent autophagy in addition to caspase-dependent apoptosis in a cancer type.
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Nagpal P, Akl MR, Ayoub NM, Tomiyama T, Cousins T, Tai B, Carroll N, Nyrenda T, Bhattacharyya P, Harris MB, Goy A, Pecora A, Suh KS. Pediatric Hodgkin lymphoma: biomarkers, drugs, and clinical trials for translational science and medicine. Oncotarget 2016; 7:67551-67573. [PMID: 27563824 PMCID: PMC5341896 DOI: 10.18632/oncotarget.11509] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 08/18/2016] [Indexed: 01/09/2023] Open
Abstract
Hodgkin lymphoma (HL) is a lymphoid malignancy that is typically derived from germinal-center B cells. EBV infection, mutations in NF-κB pathway genes, and genetic susceptibility are known risk factors for developing HL. CD30 and NF-κB have been identified as potential biomarkers in pediatric HL patients, and these molecules may represent therapeutic targets. Although current risk adapted and response based treatment approaches yield overall survival rates of >95%, treatment of relapse or refractory patients remains challenging. Targeted HL therapy with the antibody-drug conjugate Brentuximab vedotin (Bv) has proven to be superior to conventional salvage chemotherapy and clinical trials are being conducted to incorporate Bv into frontline therapy that substitutes Bv for alkylating agents to minimize secondary malignancies. The appearance of secondary malignancies has been a concern in pediatric HL, as these patients are at highest risk among all childhood cancer survivors. The risk of developing secondary leukemia following childhood HL treatment is 10.4 to 174.8 times greater than the risk in the general pediatric population and the prognosis is significantly poorer than the other hematological malignancies with a mortality rate of nearly 100%. Therefore, identifying clinically valuable biomarkers is of utmost importance to stratify and select patients who may or may not need intensive regimens to maintain optimal balance between maximal survival rates and averting late effects. Here we discuss epidemiology, risk factors, staging, molecular and genetic prognostic biomarkers, treatment for low and high-risk patients, and the late occurrence of secondary malignancies in pediatric HL.
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Affiliation(s)
- Poonam Nagpal
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Mohamed R. Akl
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Nehad M. Ayoub
- Department of Clinical Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Tatsunari Tomiyama
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Tasheka Cousins
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Betty Tai
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Nicole Carroll
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Themba Nyrenda
- Department of Research, Hackensack University Medical Center, Hackensack, NJ, USA
| | | | - Michael B. Harris
- Department of Pediatrics, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Andre Goy
- Clinical Divisions, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Andrew Pecora
- Clinical Divisions, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - K. Stephen Suh
- The Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
- Department of Research, Hackensack University Medical Center, Hackensack, NJ, USA
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19
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Liu X, Bi Y. Y-27632 Increases Sensitivity of PANC-1 Cells to EGCG in Regulating Cell Proliferation and Migration. Med Sci Monit 2016; 22:3529-3534. [PMID: 27694793 PMCID: PMC5063426 DOI: 10.12659/msm.897594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Background The study aimed to investigate the inhibitory effect of (1R,4r)-4-((R)-1-aminoethyl)-N-(pyridin-4-yl) cyclohexanecarboxamide (Y-27632) and (−)-epigallocatechin-3-gallate (EGCG) on the proliferation and migration of PANC-1 cells. EGCG, found in green tea, has been previously shown to be one of the most abundant and powerful catechins in cancer prevention and treatment. Y-27632, a selective inhibitor of rho-associated protein kinase 1, is widely used in treating cardiovascular disease, inflammation, and cancer. Material/Methods PANC-1 cells, maintained in Dulbecco’s Modified Eagle’s Medium, were treated with dimethyl sulfoxide (control) as well as different concentrations (20, 40, 60, and 80 μg/mL) of EGCG for 48 h. In addition, PANC-1 cells were treated separately with 60 μg/mL EGCG, 20 μM Y-27632, and EGCG combined with Y-27632 (60 μg/mL EGCG + 20 μM Y-27632) for 48 h. The effect of EGCG and Y-27632 on the proliferation and migration of PANC-1 cells was evaluated using Cell Counting Kit-8 and transwell migration assays. The expression of peroxisome proliferator–activated receptor alpha (PPARα) and Caspase-3 mRNA was determined by Quantitative real-time polymerase chain reaction (RT-qPCR). Results EGCG (20–80 μg/mL) inhibited cell viability in a dose-dependent manner. Y-27632 enhanced the sensitivity of PANC-1 cells to EGCG (by increasing the expression of PPARα and Caspase-3 mRNA) and suppressed cell proliferation. PANC-1 cell migration was inhibited by treatment with a combination of EGCG and Y-27632. Conclusions Y-27632 increases the sensitivity of PANC-1 cells to EGCG in regulating cell proliferation and migration, which is likely to be related to the expression of PPARα mRNA and Caspase-3 mRNA.
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Affiliation(s)
- Xing Liu
- School of Public Health, Wuhan University, Wuhan, Hubei, China (mainland)
| | - Yongyi Bi
- School of Public Health, Wuhan University, Wuhan, Hubei, China (mainland)
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Amodio N, Stamato MA, Gullà AM, Morelli E, Romeo E, Raimondi L, Pitari MR, Ferrandino I, Misso G, Caraglia M, Perrotta I, Neri A, Fulciniti M, Rolfo C, Anderson KC, Munshi NC, Tagliaferri P, Tassone P. Therapeutic Targeting of miR-29b/HDAC4 Epigenetic Loop in Multiple Myeloma. Mol Cancer Ther 2016; 15:1364-75. [PMID: 27196750 DOI: 10.1158/1535-7163.mct-15-0985] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 03/18/2016] [Indexed: 11/16/2022]
Abstract
Epigenetic abnormalities are common in hematologic malignancies, including multiple myeloma, and their effects can be efficiently counteracted by a class of tumor suppressor miRNAs, named epi-miRNAs. Given the oncogenic role of histone deacetylases (HDAC) in multiple myeloma, we investigated whether their activity could be antagonized by miR-29b, a well-established epi-miRNA. We demonstrated here that miR-29b specifically targets HDAC4 and highlighted that both molecules are involved in a functional loop. In fact, silencing of HDAC4 by shRNAs inhibited multiple myeloma cell survival and migration and triggered apoptosis and autophagy, along with the induction of miR-29b expression by promoter hyperacetylation, leading to the downregulation of prosurvival miR-29b targets (SP1, MCL-1). Moreover, treatment with the pan-HDAC inhibitor SAHA upregulated miR-29b, overcoming the negative control exerted by HDAC4. Importantly, overexpression or inhibition of miR-29b, respectively, potentiated or antagonized SAHA activity on multiple myeloma cells, as also shown in vivo by a strong synergism between miR-29b synthetic mimics and SAHA in a murine xenograft model of human multiple myeloma. Altogether, our results shed light on a novel epigenetic circuitry regulating multiple myeloma cell growth and survival and open new avenues for miR-29b-based epi-therapeutic approaches in the treatment of this malignancy. Mol Cancer Ther; 15(6); 1364-75. ©2016 AACR.
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Affiliation(s)
- Nicola Amodio
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy.
| | - Maria Angelica Stamato
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Anna Maria Gullà
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Eugenio Morelli
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Enrica Romeo
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Lavinia Raimondi
- Laboratory of Tissue Engineering - Innovative Technology Platforms for Tissue Engineering (PON01-00829), Rizzoli Orthopedic Institute, Palermo, Italy
| | - Maria Rita Pitari
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Ida Ferrandino
- Department of Biology, University "Federico II" of Naples, Naples, Italy
| | - Gabriella Misso
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Ida Perrotta
- Department of Biology, Ecology and Earth Sciences (Di.B.E.S.T.), Transmission Electron Microscopy Laboratory, Centre for Microscopy and Microanalysis (CM2), University of Calabria, Rende, Italy
| | - Antonino Neri
- Department of Medical Sciences, University of Milan, Hematology 1, IRCCS Policlinico Foundation, Milan, Italy
| | - Mariateresa Fulciniti
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Christian Rolfo
- Oncology Department, Antwerp University Hospital (UZA) and Center for Oncological Research (CORE) Antwerp University, Antwerp, Belgium
| | - Kenneth C Anderson
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Nikhil C Munshi
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. VA Boston Healthcare System, West Roxbury, Boston, Massachusetts
| | - Pierosandro Tagliaferri
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy
| | - Pierfrancesco Tassone
- Department of Experimental and Clinical Medicine, Magna Graecia University and Translational Medical Oncology Unit, Salvatore Venuta University Campus, Catanzaro, Italy. Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, Pennsylvania.
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21
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Huang Z, Zhou L, Chen Z, Nice EC, Huang C. Stress management by autophagy: Implications for chemoresistance. Int J Cancer 2016; 139:23-32. [PMID: 26757106 DOI: 10.1002/ijc.29990] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 12/07/2015] [Accepted: 01/07/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Zhao Huang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy; Chengdu People's Republic of China
- Department of Neurology; the Affiliated Hospital of Hainan Medical College; Haikou Hainan People's Republic of China
| | - Li Zhou
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy; Chengdu People's Republic of China
| | - Zhibin Chen
- Department of Neurology; the Affiliated Hospital of Hainan Medical College; Haikou Hainan People's Republic of China
| | - Edouard C. Nice
- Department of Biochemistry and Molecular Biology; Monash University; Clayton Victoria Australia
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy; Chengdu People's Republic of China
- Central Laboratory of Affiliated Hospital of Hainan Medical College; Haikou Hainan People's Republic of China
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22
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Jeevithan E, Jingyi Z, Bao B, Shujun W, JeyaShakila R, Wu WH. Biocompatibility assessment of type-II collagen and its polypeptide for tissue engineering: effect of collagen's molecular weight and glycoprotein content on tumor necrosis factor (Fas/Apo-1) receptor activation in human acute T-lymphocyte leukemia cell line. RSC Adv 2016. [DOI: 10.1039/c5ra24979a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fas cell surface death receptor activation by low molecular weight (57, 40 and 25 kDa) collagens was investigated based on MW and glycoprotein content.
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Affiliation(s)
- E. Jeevithan
- Department of Marine Pharmacology
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- China
| | - Z. Jingyi
- Department of Marine Pharmacology
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- China
| | - B. Bao
- Department of Marine Pharmacology
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- China
| | - W. Shujun
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology
- Huaihai Institute of Technology
- Lianyungang
- China
| | - R. JeyaShakila
- Department of Fish Quality Assurance and Management
- Fish Quality Monitoring and Certification Centre
- Fisheries College and Research Institute
- Tamil Nadu Fisheries University
- Tuticorin 628 008
| | - W. H. Wu
- Department of Marine Pharmacology
- College of Food Science and Technology
- Shanghai Ocean University
- Shanghai 201306
- China
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Engür S, Dikmen M, Öztürk Y. Comparison of antiproliferative and apoptotic effects of a novel proteasome inhibitor MLN2238 with bortezomib on K562 chronic myeloid leukemia cells. Immunopharmacol Immunotoxicol 2015; 38:87-97. [DOI: 10.3109/08923973.2015.1122616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Goto H. Childhood relapsed acute lymphoblastic leukemia: Biology and recent treatment progress. Pediatr Int 2015; 57:1059-66. [PMID: 26455582 DOI: 10.1111/ped.12837] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/02/2015] [Accepted: 09/28/2015] [Indexed: 12/15/2022]
Abstract
Acute lymphoblastic leukemia (ALL) is the most frequent cancer in children. Despite remarkable improvement in the prognosis of childhood ALL over the past few decades, the treatment of relapsed ALL is still challenging. The prognosis of first ALL relapse is associated with time of relapse after initial therapy, sites of relapse, and immunophenotype. More recently, response to treatment, which is evaluated by assessment of minimal residual disease (MRD), has been found to be clinically significant in relapsed ALL as well as in the initially diagnosed disease. Utilizing these factors, risk-oriented treatment stratification for first ALL relapse has been established. In the standard-risk group for first ALL relapse, intensification of conventional ALL-type therapy can provide a cure in approximately 70% of patients. It is important to assess MRD after reinduction therapy to determine the indications for stem cell transplantation in the standard-risk group. In contrast, no standardized therapy has been established for the high-risk group, which accounts for more than half of relapsed ALL patients. Recent studies have shed light on the clonal origin of relapsed ALL, which usually exists as a minor subclone at the time of initial diagnosis. Clonal selection and evolution take place during chemotherapy, resulting in distinct genetic and epigenetic characteristics of relapsed ALL, some of which are linked to drug resistance, a common and problematic feature of ALL after relapse. To overcome resistance to standard ALL-type therapy, and considering the heterogeneous biological background of high-risk relapsed ALL, innovative therapies using new agents are necessary.
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Affiliation(s)
- Hiroaki Goto
- Division of Hemato-Oncology and Regenerative Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
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25
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Amengual JE, Johannet P, Lombardo M, Zullo K, Hoehn D, Bhagat G, Scotto L, Jirau-Serrano X, Radeski D, Heinen J, Jiang H, Cremers S, Zhang Y, Jones S, O'Connor OA. Dual Targeting of Protein Degradation Pathways with the Selective HDAC6 Inhibitor ACY-1215 and Bortezomib Is Synergistic in Lymphoma. Clin Cancer Res 2015; 21:4663-75. [PMID: 26116270 DOI: 10.1158/1078-0432.ccr-14-3068] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 06/12/2015] [Indexed: 01/25/2023]
Abstract
PURPOSE Pan-class histone deacetylase (HDAC) inhibitors are effective treatments for select lymphomas. Isoform-selective HDAC inhibitors are emerging as potentially more targeted agents. HDAC6 is a class IIb deacetylase that facilitates misfolded protein transport to the aggresome for degradation. We investigated the mechanism and therapeutic impact of the selective HDAC6 inhibitor ACY-1215 alone and in combination with bortezomib in preclinical models of lymphoma. EXPERIMENTAL DESIGN Concentration-effect relationships were defined for ACY-1215 across 16 lymphoma cell lines and for synergy with bortezomib. Mechanism was interrogated by immunoblot and flow cytometry. An in vivo xenograft model of DLBCL was used to confirm in vitro findings. A collection of primary lymphoma samples were surveyed for markers of the unfolded protein response (UPR). RESULTS Concentration-effect relationships defined maximal cytotoxicity at 48 hours with IC50 values ranging from 0.9 to 4.7 μmol/L. Strong synergy was observed in combination with bortezomib. Treatment with ACY-1215 led to inhibition of the aggresome evidenced by acetylated α-tubulin and accumulated polyubiquitinated proteins and upregulation of the UPR. All pharmacodynamic effects were enhanced with the addition of bortezomib. Findings were validated in vivo where mice treated with the combination demonstrated significant tumor growth delay and prolonged overall survival. Evaluation of a collection of primary lymphoma samples for markers of the UPR revealed increased HDAC6, GRP78, and XBP-1 expression as compared with reactive lymphoid tissue. CONCLUSIONS These data are the first results to demonstrate that dual targeting of protein degradation pathways represents an innovative and rational approach for the treatment of lymphoma.
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Affiliation(s)
- Jennifer E Amengual
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York.
| | - Paul Johannet
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Maximilian Lombardo
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Kelly Zullo
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Daniela Hoehn
- Division of Hematopathology, Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Govind Bhagat
- Division of Hematopathology, Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Luigi Scotto
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Xavier Jirau-Serrano
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Dejan Radeski
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Jennifer Heinen
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
| | - Hongfeng Jiang
- Division of Clinical Pathology, Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Serge Cremers
- Division of Clinical Pathology, Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York
| | - Yuan Zhang
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | - Simon Jones
- Acetylon Pharmaceuticals, Inc., Boston, Massachusetts
| | - Owen A O'Connor
- Center for Lymphoid Malignancies, Department of Medicine, Columbia University Medical Center, New York, New York
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Synergistic Activity of Carfilzomib and Panobinostat in Multiple Myeloma Cells via Modulation of ROS Generation and ERK1/2. BIOMED RESEARCH INTERNATIONAL 2015; 2015:459052. [PMID: 26000292 PMCID: PMC4427084 DOI: 10.1155/2015/459052] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 08/31/2014] [Indexed: 01/18/2023]
Abstract
Relapse of disease and subsequent resistance to established therapies remain as major challenges in the treatment of multiple myeloma (MM). New therapeutic options are needed for these extensively pretreated patients. To explore an optimized combinational therapy, interactions between the irreversible proteasome inhibitor carfilzomib exhibiting a well-tolerated side-effect profile and histone deacetylase inhibitor (HDACi) panobinostat (LBH589) were examined in MM cells. Coadministration of carfilzomib and LBH589 led to a synergistic inhibition of proliferation in MM cells. Further studies showed that the combined treatment synergistically increased mitochondrial injury, caspase activation, and apoptosis in MM cells. Lethality of the carfilzomib/LBH589 combination was associated with the reactive oxygen species (ROS) generation and ERK1/2 inactivation. In addition, the free radical scavenger N-acetylcysteine (NAC) could block carfilzomib and LBH589-induced oxidative stress and the subsequent apoptosis. Together, these findings argue that the strategy of combining carfilzomib and LBH589 warrants attention in MM.
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Huang Z, Peng S, Knoff J, Lee SY, Yang B, Wu TC, Hung CF. Combination of proteasome and HDAC inhibitor enhances HPV16 E7-specific CD8+ T cell immune response and antitumor effects in a preclinical cervical cancer model. J Biomed Sci 2015; 22:7. [PMID: 25591912 PMCID: PMC4298946 DOI: 10.1186/s12929-014-0111-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 12/31/2014] [Indexed: 11/15/2022] Open
Abstract
Background Bortezomib, a proteasome inhibitor and suberoylanilide hydroxamic acid (SAHA, also known as Vorinostat), a histone deacetylase inhibitor, have been recognized as potent chemotherapeutic drugs. Bortezomib and SAHA are FDA-approved for the treatment of cutaneous T cell lymphoma and multiple myeloma/mantle cell lymphoma, respectively. Furthermore, the combination of the bortezomib and SAHA has been tested in a variety of preclinical models and in clinical trials and may be ideal for the treatment of cancer. However, it remains unclear how this treatment strategy affects the host immune response against tumors. Results Here, we used a well-defined E6/E7-expressing tumor model to examine how the immune system can be motivated to act against tumor cells expressing tumor antigens. We demonstrate that the combination of bortezomib and SAHA elicits potent antitumor effects in TC-1 tumor-bearing mice. Additionally, we are the first to show that treatment with bortezomib and SAHA leads to tumor-specific immunity by rendering tumor cells more susceptible to killing by antigen-specific CD8+ T cells than treatment with either drug alone. Conclusions The current study serves an important foundation for the future clinical application of both drugs for the treatment of cervical cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12929-014-0111-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhuomin Huang
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA. .,Department of Gynecology, Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China.
| | - Shiwen Peng
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA.
| | - Jayne Knoff
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA.
| | - Sung Yong Lee
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA. .,Department of Internal Medicine, Korea University Medical Center, Seoul, South Korea.
| | - Benjamin Yang
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA.
| | - Tzyy-Choou Wu
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA. .,Obstetrics and Gynecology, Johns Hopkins Medical Institutions, Baltimore, MD, USA. .,Molecular Microbiology and Immunology, Johns Hopkins Medical Institutions, Baltimore, MD, USA. .,Oncology, Johns Hopkins Medical Institutions, Baltimore, MD, USA.
| | - Chien-Fu Hung
- Department of Pathology, Johns Hopkins Medical Institutions, CRB II Room 307, 1550 Orleans Street, 21231, Baltimore, MD, USA.
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Zheng Z, Cheng S, Wu W, Wang L, Zhao Y, Shen Y, Janin A, Zhao WL. c-FLIP is involved in tumor progression of peripheral T-cell lymphoma and targeted by histone deacetylase inhibitors. J Hematol Oncol 2014; 7:88. [PMID: 25477070 PMCID: PMC4261569 DOI: 10.1186/s13045-014-0088-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 11/12/2014] [Indexed: 12/22/2022] Open
Abstract
Background Peripheral T-cell lymphomas (PTCLs) are often aggressive tumors and resistant to conventional chemotherapy. Dysregulation of extrinsic apoptosis plays an important role on tumor cell sensitivity to chemotherapeutic agents. Cellular FLICE inhibitory protein (c-FLIP) is a key regulator of extrinsic apoptotic pathway. Methods c-FLIP expression was assessed by real-time PCR and compared according to clinical parameters in patients with PTCLs. The relation of c-FLIP to tumor cell apoptosis mediated by histone deacetylases inhibitors (HDACIs) and the possible mechanism were examined in T-lymphoma cell lines and in a murine xenograft model. Results c-FLIP was overexpressed and associated with decreased tumor TRAIL/DR5 expression, elevated serum lactate dehydrogenase level and high-risk International Prognostic Index of the patients. In vitro, molecular silencing of c-FLIP by specific small-interfering RNA increased TRAIL/DR5 expression, enhanced T-lymphoma cell apoptosis and sensitized cells to chemotherapeutic agents. However, HDACIs valproic acid (VPA) and suberoylanilide hydroxamic acid (SAHA) could downregulate c-FLIP expression and triggered extrinsic apoptosis of T-lymphoma cells, through inhibiting NF-κB signaling and interrupting P50 interaction with c-FLIP promoter. As Class I HDACIs, both VPA and SAHA inhibited HDAC1, resulting in P50 inactivation and c-FLIP downregulation. In vivo, oral VPA treatment significantly retarded tumor growth and induced in situ apoptosis, consistent with inhibition of HDAC1/P50/c-FLIP axis and increase of TRAIL/DR5 expression. Conclusions c-FLIP overexpression in PTCLs protected tumor cells from extrinsic apoptosis and contributed to tumor progression. Although linking to chemoresistance, c-FLIP indicated tumor cell sensitivity to HDACIs, providing a potential biomarker of targeting apoptosis in treating PTCLs. Electronic supplementary material The online version of this article (doi:10.1186/s13045-014-0088-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhong Zheng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China.
| | - Shu Cheng
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China.
| | - Wen Wu
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China.
| | - Li Wang
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China. .,Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China.
| | - Yan Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China.
| | - Yang Shen
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China.
| | - Anne Janin
- Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China. .,U1165 Inserm/Université Paris 7, Hôpital Saint Louis, Pairs, France.
| | - Wei-Li Zhao
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Rui Jin Er Road, Shanghai, 200025, China. .,Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Laboratory of Molecular Pathology, Shanghai, China.
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Abstract
INTRODUCTION Bortezomib , the first proteasome inhibitor (PI) to be evaluated in humans, is approved in the USA and Europe for the treatment of patients with multiple myeloma, and in the USA for patients with relapsed mantle cell lymphoma (MCL). AREAS COVERED This review examines the role of bortezomib in the therapy of non-Hodgkin's lymphoma (NHL). Bortezomib may be particularly effective against the NF-κB-dependent activated B-cell subtype of diffuse large B-cell lymphoma. The combination of bortezomib with rituximab and dexamethasone represents a standard approach for the treatment of Waldenström's macroglobulinemia, and that with bendamustine and rituximab has demonstrated excellent efficacy in follicular lymphoma. Combinations with other novel agents, such as inhibitors of cyclin-dependent kinases or histone deacetylases, also hold substantial promise in NHL. Unmet needs in NHL, competitor compounds, chemistry, pharmacokinetics, pharmacodynamics and safety and tolerability of bortezomib are also discussed. EXPERT OPINION The success of bortezomib in MCL has validated the proteasome as a therapeutic target in NHL. Rational combinations, for example, with Bruton's tyrosine kinase inhibitors or BH3-mimetics, may hold the key to optimizing the therapeutic potential of PIs in NHL. Future trials are likely to involve newer agents with improved pharmacodynamic (e.g., carfilzomib, marizomib) or pharmacokinetic (e.g., ixazomib, oprozomib) properties.
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Affiliation(s)
- Prithviraj Bose
- Virginia Commonwealth University, Massey Cancer Center, Richmond, VA, USA
- Virginia Commonwealth University, Department of Internal Medicine, Richmond, VA, USA
| | - Michael S. Batalo
- Virginia Commonwealth University, Department of Internal Medicine, Richmond, VA, USA
| | - Beata Holkova
- Virginia Commonwealth University, Massey Cancer Center, Richmond, VA, USA
- Virginia Commonwealth University, Department of Internal Medicine, Richmond, VA, USA
| | - Steven Grant
- Virginia Commonwealth University, Massey Cancer Center, Richmond, VA, USA
- Virginia Commonwealth University, Department of Internal Medicine, Richmond, VA, USA
- Virginia Commonwealth University, Department of Microbiology and Immunology, Richmond, VA, USA
- Virginia Commonwealth University, Department of Biochemistry and Molecular Biology, Richmond, VA, USA
- Virginia Commonwealth University, Department of Human and Molecular Genetics, Richmond, VA, USA
- Virginia Commonwealth University, Institute for Molecular Medicine, 401 College Street, P.O. Box 980035, Richmond, VA 23298, USA Tel: +1 804 828 5211
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Hui KF, Leung YY, Yeung PL, Middeldorp JM, Chiang AKS. Combination of SAHA and bortezomib up-regulates CDKN2A and CDKN1A and induces apoptosis of Epstein-Barr virus-positive Wp-restricted Burkitt lymphoma and lymphoblastoid cell lines. Br J Haematol 2014; 167:639-50. [PMID: 25155625 DOI: 10.1111/bjh.13089] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/15/2014] [Indexed: 01/22/2023]
Abstract
Epstein-Barr virus (EBV) latent proteins exert anti-apoptotic effects on EBV-transformed lymphoid cells by down-regulating BCL2L11 (BIM), CDKN2A (p16(INK4A) ) and CDKN1A (p21(WAF1) ). However, the potential therapeutic effects of targeting these anti-apoptotic mechanisms remain unexplored. Here, we tested both in vitro and in vivo effects of the combination of histone deacetylase (HDAC) and proteasome inhibitors on the apoptosis of six endemic Burkitt lymphoma (BL) lines of different latency patterns (types I and III and Wp-restricted) and three lymphoblastoid cell lines (LCLs). We found that the combination of HDAC and proteasome inhibitors (e.g. SAHA/bortezomib) synergistically induced the killing of Wp-restricted and latency III BL and LCLs but not latency I BL cells. The synergistic killing was due to apoptosis, as evidenced by the high percentage of annexin V positivity and strong cleavage of PARP1 (PARP) and CASP3 (caspase-3). Concomitantly, SAHA/bortezomib up-regulated the expression of CDKN2A and CDKN1A but did not affect the level of BCL2L11 or BHRF1 (viral homologue of BCL2). The apoptotic effects were dependent on reactive oxygen species generation. Furthermore, SAHA/bortezomib suppressed the growth of Wp-restricted BL xenografts in nude mice. This study provides the rationale to test the novel application of SAHA/bortezomib on the treatment of EBV-associated Wp-restricted BL and post-transplant lymphoproliferative disorder.
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Affiliation(s)
- Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong, SAR, China
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Abaza MSI, Bahman AM, Al-Attiyah RJ. Valproic acid, an anti-epileptic drug and a histone deacetylase inhibitor, in combination with proteasome inhibitors exerts antiproliferative, pro-apoptotic and chemosensitizing effects in human colorectal cancer cells: underlying molecular mechanisms. Int J Mol Med 2014; 34:513-32. [PMID: 24899129 DOI: 10.3892/ijmm.2014.1795] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 05/15/2014] [Indexed: 11/06/2022] Open
Abstract
Although the therapeutic efficacy of valproic acid (VPA) has been observed in patients with solid tumors, the very high concentration required to induce antitumor activity limits its clinical utility. The present study focused on the development of combined molecular targeted therapies using VPA and proteasome inhibitors (PIs: MG132, PI-1 and PR-39) to determine whether this combination of treatments has synergistic anticancer and chemosensitizing effects against colorectal cancer. Furthermore, the potential molecular mechanisms of action of the VPA/PI combinations were evaluated. The effects of VPA in combination with PIs on the growth of colorectal cancer cells were assessed with regard to proliferation, cell cycle, apoptosis, reactive oxygen species (ROS) generation and the expression of genes that control the cell cycle, apoptosis and pro-survival/stress-related pathways. Treatment with combinations of VPA and PIs resulted in an additive/synergistic decrease in colorectal cancer cell proliferation compared to treatment with VPA or PIs alone. The combination treatment was associated with a synergistic increase in apoptosis and in the number of cells arrested in the S phase of the cell cycle. These events were associated with increased ROS generation, pro-apoptotic gene expression and stress-related gene expression. These events were also associated with the decreased expression of anti-apoptotic genes and pro-survival genes. The combination of VPA with MG132 or PI-1 enhanced the chemosensitivity of the SW1116 (29-185‑fold) and SW837 (50-620-fold) colorectal cancer cells. By contrast, the combination of VPA/PR-39 induced a pronounced increase in the chemosensitivity of the SW837 (16-54-fold) colorectal cancer cells. These data provide a rational basis for the clinical use of this combination therapy for the treatment of colorectal cancer.
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Affiliation(s)
- Mohamed-Salah I Abaza
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat 13060, Kuwait
| | - Abdul-Majeed Bahman
- Department of Biological Sciences, Faculty of Science, Kuwait University, Safat 13060, Kuwait
| | - Raja'a J Al-Attiyah
- Department of Microbiology, Faculty of Medicine, Kuwait University, Safat 13060, Kuwait
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Gao M, Gao L, Tao Y, Hou J, Yang G, Wu X, Xu H, Tompkins VS, Han Y, Wu H, Zhan F, Shi J. Proteasome inhibitor carfilzomib interacts synergistically with histone deacetylase inhibitor vorinostat in Jurkat T-leukemia cells. Acta Biochim Biophys Sin (Shanghai) 2014; 46:484-91. [PMID: 24801128 DOI: 10.1093/abbs/gmu030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
In the present study, we investigated the interactions between proteasome inhibitor carfilzomib (CFZ) and histone deacetylase inhibitor vorinostat in Jurkat T-leukemia cells. Coexposure of cells to minimally lethal concentrations of CFZ with very low concentration of vorinostat resulted in synergistic antiproliferative effects and enhanced apoptosis in Jurkat T-leukemia cells, accompanied with the sharply increased reactive oxygen species (ROS), the striking decrease in the mitochondrial membrane potential (MMP), the increased release of cytochrome c, the enhanced activation of caspase-9 and -3, and the cleavage of PARP. The combined treatment of Jurkat cells pre-treated with ROS scavengers N-acetylcysteine (NAC) significantly blocked the loss of mitochondrial membrane potential, suggesting that ROS generation was a former event of the loss of mitochondrial membrane potential. Furthermore, NAC also resulted in a marked reduction in apoptotic cells, indicating a critical role for increased ROS generation by combined treatment. In addition, combined treatment arrested the cell cycle in G2-M phase. These results imply that CFZ interacted synergistically with vorinostat in Jurkat T-leukemia cells, which raised the possibility that the combination of carfilzomib with vorinostat may represent a novel strategy in treating T-cell Leukemia.
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Affiliation(s)
- Minjie Gao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Lu Gao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yi Tao
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Jun Hou
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Guang Yang
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xiaosong Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Hongwei Xu
- Department of Internal Medicine, University of Iowa, Carver College of Medicine, Iowa City, IA 52242, USA
| | - Van S Tompkins
- Department of Internal Medicine, University of Iowa, Carver College of Medicine, Iowa City, IA 52242, USA
| | - Ying Han
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Huiqun Wu
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Fenghuang Zhan
- Department of Internal Medicine, University of Iowa, Carver College of Medicine, Iowa City, IA 52242, USA
| | - Jumei Shi
- Department of Hematology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
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Hui KF, Chiang AKS. Combination of proteasome and class I HDAC inhibitors induces apoptosis of NPC cells through an HDAC6-independent ER stress-induced mechanism. Int J Cancer 2014; 135:2950-61. [PMID: 24771510 DOI: 10.1002/ijc.28924] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 04/16/2014] [Indexed: 01/05/2023]
Abstract
The current paradigm stipulates that inhibition of histone deacetylase (HDAC) 6 is essential for the combinatorial effect of proteasome and HDAC inhibitors for the treatment of cancers. Our study aims to investigate the effect of combining different class I HDAC inhibitors (without HDAC6 action) with a proteasome inhibitor on apoptosis of nasopharyngeal carcinoma (NPC). We found that combination of a proteasome inhibitor, bortezomib, and several class I HDAC inhibitors, including MS-275, apicidin and romidepsin, potently induced killing of NPC cells both in vitro and in vivo. Among the drug pairs, combination of bortezomib and romidepsin (bort/romidepsin) was the most potent and could induce apoptosis at low nanomolar concentrations. The apoptosis of NPC cells was reactive oxygen species (ROS)- and caspase-dependent but was independent of HDAC6 inhibition. Of note, bort/romidepsin might directly suppress the formation of aggresome through the downregulation of c-myc. In addition, two markers of endoplasmic reticulum (ER) stress-induced apoptosis, ATF-4 and CHOP/GADD153, were upregulated, whereas a specific inhibitor of caspase-4 (an initiator of ER stress-induced apoptosis) could suppress the apoptosis. When ROS level in the NPC cells was reduced to the untreated level, ER stress-induced caspase activation was abrogated. Collectively, our data demonstrate a model of synergism between proteasome and class I HDAC inhibitors in the induction of ROS-dependent ER stress-induced apoptosis of NPC cells, independent of HDAC6 inhibition, and provide the rationale to combine the more specific and potent class I HDAC inhibitors with proteasome inhibitors for the treatment of cancers.
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Affiliation(s)
- Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong SAR, China; Center for Nasopharyngeal Carcinoma Research, The University of Hong Kong, Hong Kong SAR, China
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Li T, Zhang Q, Zhang J, Yang G, Shao Z, Luo J, Fan M, Ni C, Wu Z, Hu X. Fenofibrate induces apoptosis of triple-negative breast cancer cells via activation of NF-κB pathway. BMC Cancer 2014; 14:96. [PMID: 24529079 PMCID: PMC4015735 DOI: 10.1186/1471-2407-14-96] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Accepted: 02/12/2014] [Indexed: 12/14/2022] Open
Abstract
Background There are a lot of unmet needs in patients with triple-negative breast cancer (TNBC). Fenofibrate, a peroxisome proliferator-activated receptor alpha (PPAR-α) agonist, has been used for decades to treat hypertriglyceridaemia and mixed dyslipidaemia. Recent studies show that it might have anti-tumor effects, however, the mechanism remains unclear. Here, we assessed the ability of fenofibrate to induce apoptosis of TNBC in vitro and in vivo and explored involved mechanisms. Methods MTT method was used to evaluate the anti-proliferation effect of fenofibrate, and invert microscope to observe the apoptotic morphological changes. The percentage of apoptotic cells and distribution ratios of cell cycle were determined by flow cytometric analysis. The related protein levels were measured by Western blot method. The changes of genes and pathways were detected by gene expression profiling. The tumor growth in vivo was assessed by MDA-MB-231 xenograft mouse model. Terminal deoxytransferase-catalyzed DNA nick-end labeling (TUNEL) assay was employed to estimate the percentage of apoptotic cells in vivo. In order to evaluate the safety of fenofibrate, blood sampled from rat eyes was detected. Results We found that fenofibrate had anti-proliferation effects on breast cancer cell lines, of which the first five most sensitive ones were all TNBC cell lines. Its induction of apoptosis was independent on PPAR-α status with the highest apoptosis percentage of 41.8 ± 8.8%, and it occurred in a time- and dose-dependent manner accompanied by up-regulation of Bad, down-regulation of Bcl-xl, Survivin and activation of caspase-3. Interestingly, activation of NF-κB pathway played an important role in the induction of apoptosis by fenofibtate and the effect could be almost totally blocked by a NF-κB specific inhibitor, pyrrolidine dithiocarbamate (PDTC). In addition, fenofibrate led to cell cycle arrest at G0/G1 phase accompanied by down-regulation of Cyclin D1, Cdk4 and up-regulation of p21, p27/Kip1. In vivo, fenofibrate slowed down tumor growth and induced apoptosis with a good safety profile in the MDA-MB-231 xengograft mouse model. Conclusions It is concluded that fenofibrate induces apoptosis of TNBC via activation of NF-κB pathway in a PPAR-α independent way, and may serve as a novel therapeutic drug for TNBC therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xichun Hu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, 200032 Shanghai, China.
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Newton TP, Cummings CT, Graham DK, Bernt KM. Epigenetics and chemoresistance in childhood acute lymphoblastic leukemia. Int J Hematol Oncol 2014. [DOI: 10.2217/ijh.13.68] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SUMMARY For children with acute lymphoblastic leukemia (ALL) who relapse, prognosis is poor and novel therapeutic strategies are needed. In the last decade, it has become apparent that ALL exhibits unique epigenetic patterns in addition to the well known cytogenetic findings. Furthermore, whole genome sequencing efforts are revealing recurrent mutations in epigenetic modifiers in ALL. Aberrant epigenetic modulation may be involved in leukemic transformation and resistance to chemotherapy. Consequently, compounds that specifically modulate the maintenance of such epigenetic programs may offer new approaches to therapy, including the modulation or prevention of chemoresistance in ALL. In this article, we review some of the most recent findings with regard to epigenetic aberrations in ALL, and discuss therapeutic strategies that are currently in development.
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Affiliation(s)
- Timothy P Newton
- Center for Cancer & Blood Disorders, Children’s Hospital Colorado & Department of Pediatrics, Section of Hematology, Oncology & Bone Marrow Transplantation, University of Colorado Anschutz Medical Campus, 12800 East 19th Avenue, RC1N, Mail Stop 8302, Aurora, CO 80045, USA
| | - Christopher T Cummings
- Center for Cancer & Blood Disorders, Children’s Hospital Colorado & Department of Pediatrics, Section of Hematology, Oncology & Bone Marrow Transplantation, University of Colorado Anschutz Medical Campus, 12800 East 19th Avenue, RC1N, Mail Stop 8302, Aurora, CO 80045, USA
| | - Douglas K Graham
- Center for Cancer & Blood Disorders, Children’s Hospital Colorado & Department of Pediatrics, Section of Hematology, Oncology & Bone Marrow Transplantation, University of Colorado Anschutz Medical Campus, 12800 East 19th Avenue, RC1N, Mail Stop 8302, Aurora, CO 80045, USA
| | - Kathrin M Bernt
- Center for Cancer & Blood Disorders, Children’s Hospital Colorado & Department of Pediatrics, Section of Hematology, Oncology & Bone Marrow Transplantation, University of Colorado Anschutz Medical Campus, 12800 East 19th Avenue, RC1N, Mail Stop 8302, Aurora, CO 80045, USA.
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Histone deacetylase 3 as a novel therapeutic target in multiple myeloma. Leukemia 2013; 28:680-9. [PMID: 23913134 DOI: 10.1038/leu.2013.231] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/22/2013] [Accepted: 07/25/2013] [Indexed: 01/29/2023]
Abstract
Histone deacetylases (HDACs) represent novel molecular targets for the treatment of various types of cancers, including multiple myeloma (MM). Many HDAC inhibitors have already shown remarkable antitumor activities in the preclinical setting; however, their clinical utility is limited because of unfavorable toxicities associated with their broad range HDAC inhibitory effects. Isoform-selective HDAC inhibition may allow for MM cytotoxicity without attendant side effects. In this study, we demonstrated that HDAC3 knockdown and a small-molecule HDAC3 inhibitor BG45 trigger significant MM cell growth inhibition via apoptosis, evidenced by caspase and poly (ADP-ribose) polymerase cleavage. Importantly, HDAC3 inhibition downregulates phosphorylation (tyrosine 705 and serine 727) of signal transducers and activators of transcription 3 (STAT3). Neither interleukin-6 nor bone marrow stromal cells overcome this inhibitory effect of HDAC3 inhibition on phospho-STAT3 and MM cell growth. Moreover, HDAC3 inhibition also triggers hyperacetylation of STAT3, suggesting crosstalk signaling between phosphorylation and acetylation of STAT3. Importantly, inhibition of HDAC3, but not HDAC1 or 2, significantly enhances bortezomib-induced cytotoxicity. Finally, we confirm that BG45 alone and in combination with bortezomib trigger significant tumor growth inhibition in vivo in a murine xenograft model of human MM. Our results indicate that HDAC3 represents a promising therapeutic target, and validate a prototype novel HDAC3 inhibitor BG45 in MM.
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Kolesar JM, Traynor AM, Holen KD, Hoang T, Seo S, Kim K, Alberti D, Espinoza-Delgado I, Wright JJ, Wilding G, Bailey HH, Schelman WR. Vorinostat in combination with bortezomib in patients with advanced malignancies directly alters transcription of target genes. Cancer Chemother Pharmacol 2013; 72:661-7. [PMID: 23903894 DOI: 10.1007/s00280-013-2242-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 07/21/2013] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Vorinostat is a small molecule inhibitor of class I and II histone deacetylase enzymes which alters the expression of target genes including the cell cycle gene p21, leading to cell cycle arrest and apoptosis. METHODS Patients enrolled in a phase I trial were treated with vorinostat alone on day 1 and vorinostat and bortezomib in combination on day 9. Paired biopsies were obtained in eleven subjects. Blood samples were obtained on days 1 and 9 of cycle 1 prior to dosing and 2 and 6 h post-dosing in all 60 subjects. Gene expression of p21, HSP70, AKT, Nur77, ERB1, and ERB2 was evaluated in peripheral blood mononuclear cells and tissue samples. Chromatin immunoprecipitation of p21, HSP70, and Nur77 was also performed in biopsy samples. RESULTS In peripheral blood mononuclear cells, Nur77 was significantly and consistently decreased 2 h after vorinostat administration on both days 1 and 9, median ratio of gene expression relative to baseline of 0.69 with interquartile range 0.49-1.04 (p < 0.001); 0.28 (0.15-0.7) (p < 0.001), respectively, with more pronounced decrease on day 9, when patients received both vorinostat and bortezomib. p21, a downstream target of Nur77, was significantly decreased on day 9, 2 and 6 h after administration of vorinostat and bortezomib, 0.67 (0.41-1.03) (p < 0.01); 0.44 (0.25-1.3) (p < 0.01), respectively. The ChIP assay demonstrated a protein-DNA interaction, in this case interaction of Nur77, HSP70 and p21 with acetylated histone H3, at baseline and at day 9 after treatment with vorinostat in tissue biopsies in most patients. CONCLUSION Vorinostat inhibits Nur77 expression, which in turn may decrease p21 and AKT expression in PBMCs. The influence of vorinostat on target gene expression in tumor tissue was variable; however, most patients demonstrated interaction of acetylated H3 with Nur77, HSP70, and p21 which provides evidence of interaction with the transcriptionally active acetylated H3.
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Affiliation(s)
- Jill M Kolesar
- University of Wisconsin Carbone Comprehensive Cancer Center, 600 Highland Avenue, Madison, WI 53792, USA.
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Histone deacetylase inhibitor potentiated the ability of MTOR inhibitor to induce autophagic cell death in Burkitt leukemia/lymphoma. J Hematol Oncol 2013; 6:53. [PMID: 23866964 PMCID: PMC3722002 DOI: 10.1186/1756-8722-6-53] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 07/14/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Burkitt leukemia/lymphoma is a major subtype of aggressive B-cell lymphoma. Biological targeted therapies on this disease need to be further investigated and may help to improve the clinical outcome of the patients. METHODS This study examined the anti-tumor activity of the histone deacetylases (HDAC) inhibitor valproic acid (VPA) combined with the mammalian target of rapamycin (MTOR) inhibitor temsirolimus in Burkitt leukemia/lymphoma cell lines, as well as in primary tumor cells and a murine xenograft model. RESULTS Co-treatment of VPA and temsirolimus synergistically inhibited the tumor cell growth and triggered the autophagic cell death, with a significant inhibition of MTOR signaling and MYC oncoprotein. Functioned as a class I HDAC inhibitor, VPA potentiated the effect of temsirolimus on autophagy through inhibiting HDAC1. Molecular silencing of HDAC1 using small interfering RNA (siRNA) attenuated VPA-mediated regulation of CDKN1A, CDKN1B and LC3-I/II, regression of tumor cell growth and induction of autophagy. Meanwhile, VPA counteracted temsirolimus-induced AKT activation via HDAC3 inhibition. HDAC3 siRNA abrogated the ability of VPA to modulate AKT phosphorylation, to suppress tumor cell growth and to induce autophagy. Strong antitumor effect was also observed on primary tumor cells while sparing normal hematopoiesis ex vivo. In a murine xenograft model established with subcutaneous injection of Namalwa cells, dual treatment efficiently blocked tumor growth, inhibited MYC and induced in situ autophagy. CONCLUSIONS These findings confirmed the synergistic effect of the HDAC and MTOR inhibitors on Burkitt leukemia/lymphoma, and provided an insight into clinical application of targeting autophagy in treating MYC-associated lymphoid malignancies.
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Hui KF, Lam BHW, Ho DN, Tsao SW, Chiang AKS. Bortezomib and SAHA synergistically induce ROS-driven caspase-dependent apoptosis of nasopharyngeal carcinoma and block replication of Epstein-Barr virus. Mol Cancer Ther 2013; 12:747-58. [PMID: 23475956 DOI: 10.1158/1535-7163.mct-12-0811] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A novel drug combination of a proteasome inhibitor, bortezomib, and a histone deacetylase inhibitor, suberoylanilide hydroxamic acid (SAHA), was tested in nasopharyngeal carcinoma (NPC), both in vitro and in vivo. Dose-response of different concentrations of bortezomib and SAHA on inhibition of cell proliferation of NPC was determined. Mechanisms of apoptosis and effects on lytic cycle activation of Epstein-Barr virus (EBV) were investigated. Combination of bortezomib and SAHA (bortezomib/SAHA) synergistically induced killing of a panel of NPC cell lines. Pronounced increase in sub-G1, Annexin V-positive, and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL)-positive cell populations were detected after treatment with bortezomib/SAHA when compared with either drug alone. Concomitantly, markedly augmented proteolytic cleavage of PARP, caspase-3, -7, -8, and -9, reactive oxygen species (ROS) generation, and caspase-8-dependent histone acetylation were observed. ROS scavenger, N-acetyl cysteine, diminished the apoptotic effects of bortezomib/SAHA, whereas caspase inhibitor Z-VAD-FMK significantly suppressed the apoptosis without decreasing the generation of ROS. Bortezomib inhibited SAHA's induction of EBV replication and abrogated production of infectious viral particles in NPC cells. Furthermore, bortezomib/SAHA potently induced apoptosis and suppressed the growth of NPC xenografts in nude mice. In conclusion, the novel drug combination of bortezomib and SAHA is highly synergistic in the killing of NPC cells in vitro and in vivo. The major mechanism of cell death is ROS-driven caspase-dependent apoptosis. Bortezomib antagonizes SAHA's activation of EBV lytic cycle in NPC cells. This study provides a strong basis for clinical testing of the combination drug regimen in patients with NPC.
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Affiliation(s)
- Kwai Fung Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
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Nooka A, Gleason C, Casbourne D, Lonial S. Relapsed and refractory lymphoid neoplasms and multiple myeloma with a focus on carfilzomib. Biologics 2013; 7:13-32. [PMID: 23386784 PMCID: PMC3563316 DOI: 10.2147/btt.s24580] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Proteasomal inhibition revolutionized myeloma therapies in this decade of novel agents. The only US Food and Drug Administration approved proteasome inhibitor so far, bortezomib effectively targets the constitutive proteasome subunit β5 of the 26S proteasome. Bortezomib induces high and quality response rates that are durable. However, myeloma cells acquire resistance to bortezomib through various mechanisms. Further, grade 3/4 peripheral neuropathy is seen in up to a quarter of patients treated with bortezomib. While the recent change in the mode of administration via the subcutaneous route is associated with a lower incidence of grade 3/4 peripheral neuropathy, it remains a major concern. The second generation proteasome inhibitors are promising, with increased preclinical efficacy and a better administration schedule. The current review spotlights the second generation proteasome inhibitors with special focus on the safety and efficacy of carfilzomib, an epoxyketone with lesser peripheral neuropathy, which exhibits irreversible proteasome inhibition. In this article, we review the pharmacology and preclinical and clinical efficacy and safety of carfilzomib alone and in combination with other chemotherapeutic agents in the various lymphoid neoplasms and multiple myeloma as well as ongoing clinical trials.
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Affiliation(s)
- Ajay Nooka
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Atlanta GA, USA
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Bastian L, Hof J, Pfau M, Fichtner I, Eckert C, Henze G, Prada J, von Stackelberg A, Seeger K, Shalapour S. Synergistic activity of bortezomib and HDACi in preclinical models of B-cell precursor acute lymphoblastic leukemia via modulation of p53, PI3K/AKT, and NF-κB. Clin Cancer Res 2013; 19:1445-57. [PMID: 23357978 DOI: 10.1158/1078-0432.ccr-12-1511] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Relapse of disease and subsequent resistance to established therapies remains a major challenge in the treatment of childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL). New therapeutic options, such as proteasome and histone deacetylase inhibitors (HDACi) with a toxicity profile differing from that of conventional cytotoxic agents, are needed for these extensively pretreated patients. EXPERIMENTAL DESIGN Antiproliferative and proapoptotic effects of combined HDACi/proteasome inhibitor treatments were analyzed using BCP-ALL monocultures, cocultures with primary mesenchymal stroma cells from patients with ALL, and xenograft mouse models. The underlying molecular mechanisms associated with combined treatment were determined by gene expression profiling and protein validation. RESULTS We identified the proteasome inhibitor bortezomib as a promising combination partner for HDACi due to the substantial synergistic antileukemic activity in BCP-ALL cells after concomitant application. This effect was maintained or even increased in the presence of chemotherapeutic agents. The synergistic effect of combined HDACi/BTZ treatment was associated with the regulation of genes involved in cell cycle, JUN/MAPK, PI3K/AKT, p53, ubiquitin/proteasome, and NF-κB pathways. We observed an activation of NF-κB after bortezomib treatment and the induction of apoptosis-related NF-κB target genes such as TNFαRs after concomitant treatment, indicating a possible involvement of NF-κB as proapoptotic mediator. In this context, significantly lower NF-κB subunits gene expression was detected in leukemia cells from patients who developed a relapse during frontline chemotherapy, compared with those who relapsed after cessation of frontline therapy. CONCLUSION These results provide a rationale for the integration of HDACi/BTZ combinations into current childhood BCP-ALL treatment protocols.
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Affiliation(s)
- Lorenz Bastian
- Department of Pediatric Oncology/Hematology, Charité-Universitätsmedizin Berlin, Germany
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Vorinostat and bortezomib synergistically cause ubiquitinated protein accumulation in prostate cancer cells. J Urol 2012; 188:2410-8. [PMID: 23088964 DOI: 10.1016/j.juro.2012.07.108] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE Protein ubiquitination is a novel strategy used to treat malignancies. We investigated whether the histone deacetylase inhibitor vorinostat (Cayman Chemical, Ann Arbor, Michigan) and the proteasome inhibitor bortezomib (LC Laboratories, Woburn, Massachusetts) would synergistically cause the accumulation of ubiquitinated proteins in prostate cancer cells. MATERIALS AND METHODS LNCaP, PC-3 and DU 145 cells (ATCC™) were treated with vorinostat and/or bortezomib. Cell viability and induction of apoptosis were assessed. In vivo efficacy was evaluated in a murine subcutaneous tumor model using PC-3 cells. The influence of androgen receptor expression on bortezomib efficacy was examined using RNA interference. Changes in the expression of ubiquitinated proteins, cell cycle associated proteins and acetylated histone were evaluated. RESULTS Androgen receptor expression seemed to decrease bortezomib activity. PC-3 and DU 145 cells were more susceptible to bortezomib than LNCaP cells and the silencing of androgen receptor expression in LNCaP cells enhanced bortezomib activity. Vorinostat and bortezomib synergistically induced apoptosis, inhibited prostate cancer cell growth and suppressed tumor growth in a murine xenograft model. The combination decreased cyclin D1 and cyclin-dependent kinase 4 expression, and increased p21 expression. The combination synergistically caused the accumulation of ubiquitinated proteins and histone acetylation. This histone acetylation was a consequence of the accumulation of ubiquitinated proteins. CONCLUSIONS Vorinostat and bortezomib inhibit the growth of prostate cancer cells synergistically by causing ubiquitinated proteins to accumulate in cells. The current study provides a framework for testing the combination in patients with advanced prostate cancer.
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Jiang XJ, Huang KK, Yang M, Qiao L, Wang Q, Ye JY, Zhou HS, Yi ZS, Wu FQ, Wang ZX, Zhao QX, Meng FY. Synergistic effect of panobinostat and bortezomib on chemoresistant acute myelogenous leukemia cells via AKT and NF-κB pathways. Cancer Lett 2012; 326:135-42. [PMID: 22863538 DOI: 10.1016/j.canlet.2012.07.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Revised: 07/21/2012] [Accepted: 07/26/2012] [Indexed: 02/09/2023]
Abstract
In this study, we investigated the synergistic effects of panobinostat and bortezomib on adriamycin-resistant HL60/ADR cells and refractory acute myelogenous leukemia (AML) primary cells. Combination of both agents had synergistic cytotoxicity on these cells, and increased the sensitivity of HL60/ADR cells to adriamycin. Panobinostat plus bortezomib was shown to modulate multiple apoptotic and drug metabolic related molecules, including activation of caspases, down-regulation of XIAP, Bcl-2 and MRP1. These effects were likely to be mediated via inhibition of AKT and NF-κB pathways. These findings provide evidence for clinic protocols using panobinostat and borezomib to overcome drug resistance in refractory AML patients.
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Affiliation(s)
- Xue-Jie Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Abaza MSI, Bahman AM, Al-Attiyah RJ, Kollamparambil AM. Synergistic induction of apoptosis and chemosensitization of human colorectal cancer cells by histone deacetylase inhibitor, scriptaid, and proteasome inhibitors: potential mechanisms of action. Tumour Biol 2012; 33:1951-72. [PMID: 23011889 DOI: 10.1007/s13277-012-0456-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Accepted: 07/03/2012] [Indexed: 01/25/2023] Open
Abstract
Histone deacetylase inhibitors (HDACIs) exhibit modest results as single agents in preclinical and clinical studies against solid tumors; they often fall short and activate nuclear factor kappa-B (NFκB). Co-administration of HDACI with proteasome inhibitors (PIs), which interrupt NFκB pathways, may enhance HDACI-lethality. The goal of this study was to determine whether PIs could potentiate HDACI, scriptaid (SCP)-mediated lethality, to unravel the associated mechanisms and to assess the effects of the combined inhibition of HDAC and proteasome on chemotherapy response in human colorectal cancer cells. Cancer cells were exposed to agents alone or in combination; cell growth inhibition was determined by MTT and colony formation assays. HDAC-, proteasome-, NFκB-activities, and reactive oxygen species (ROS) were quantified. Induction of apoptosis and cell cycle alterations were monitored by flow cytometry. Expression of cell cycle/apoptosis and cytoprotective/stress-related genes was determined by real-time qRT-PCR and EIA, respectively. Potentiation of cancer cell sensitivity to chemotherapies by SCP/PIs was also evaluated. SCP and PIs: MG132, PI-1, or epoxomicin interact synergistically to potently inhibit cancer cell growth, alter cell cycle, induce apoptosis, reduce NFκB activity, and increase ROS generation. These events are associated with multiple perturbations in the expression of cell cycle, apoptosis, cytoprotective, and stress-related genes. Co-administration of SCP and PIs strikingly increases the chemosensitivity of cancer cells (122-2 × 10(5)-fold) in a drug and SCP/PIs-dependent manner. This combination regimen markedly reduced the doses of chemotherapies with potent anticancer effects and less toxicity. A strategy combining HDAC/proteasome inhibition with chemotherapies warrants further investigation in colorectal cancer.
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Affiliation(s)
- M S I Abaza
- Molecular Biology Program, Department of Biological Sciences, College of Science, Kuwait University, PO Box 5969, Safat 13060, State of Kuwait.
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Abstract
Epigenetic modification by small-molecule histone deacetylase inhibitors (HDAC-Is) has been a promising new antineoplastic approach for various solid and hematological malignancies, particularly for cutaneous T-cell lymphoma (CTCL). Vorinostat, a pan-HDAC-I and, most recently, romidepsin, a bicyclic pan-HDAC-I, have been US FDA approved for treatment of relapsed or refractory CTCL. However, because many patients do not reach the 50% partial response mark and response is not always sustainable, overcoming HDAC-I resistance by adding other agents or finding more selective molecules is an important clinical problem in realizing the full clinical potential of HDAC-Is. In this review, we discuss the molecular basis for HDAC-I function in cancer, the clinical response and side-effect profile experienced by CTCL patients, and the progress made in attempting to identify biomarkers of response and resistance, as well as synergistic combination therapies.
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Anaplastic large cell lymphoma, ALK-negative. Crit Rev Oncol Hematol 2012; 85:206-15. [PMID: 22789917 DOI: 10.1016/j.critrevonc.2012.06.004] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Revised: 05/11/2012] [Accepted: 06/15/2012] [Indexed: 12/20/2022] Open
Abstract
Anaplastic large cell lymphoma (ALCL), anaplastic lymphoma kinase (ALK)-negative (ALCL-ALK-) is a provisional entity in the WHO 2008 Classification that represents 2-3% of NHL and 12% of T-cell NHL. No particular risk factor has been clearly identified for ALCL, but a recent study showed an odds ratio of 18 for ALCL associated with breast implants. Usually, the architecture of involved organs is eroded by solid, cohesive sheets of neoplastic cells, with peripheral T-cell lymphoma-not otherwise specified (PTCL-NOS) and classical Hodgkin lymphoma being the main differential diagnoses. In this regard, staining for PAX5 and CD30 is useful. Translocations involving ALK are absent, TCR genes are clonally rearranged. CGH and GEP studies suggest a tendency of ALCL-ALK- to differ both from PTCL-NOS and from ALCL-ALK+. Patients with ALCL-ALK- are usually adults with a median age of 54-61 years, and a male-to-female ratio of 0.9. At presentation, ALCL-ALK- is often in III-IV stage, with B symptoms, high International Prognostic Index score, high lactate dehydrogenase serum levels, and an aggressive course. ALCL-ALK- presents with lymph node involvement in ∼50% of cases; extranodal spread (20%) is less common. Staging work-up for ALCL-ALK- is similar to that routinely used for nodal NHL. Overall prognosis is poor, with a 5-year OS of 30-49%, which is significantly worse when compared to OS reported in patients with ALCL-ALK+ (5-year: 70-86%). Patients with systemic ALCL exhibit a significantly better survival compared with patients with PTCL-NOS, with a 5-year OS of 51% and 32%, respectively. Age, PIT scoring system, β2-microglobulin, and bone marrow infiltration are the main prognostic factors. The expression of proteins involved in the regulation of apoptosis (caspase 3, Bcl-2, PI9) and of CD56 is related to clinical outcome. ALCL-ALK- is generally responsive to doxorubicin-containing chemotherapy, but relapses are frequent. CHOP is the most commonly used regimen to treat systemic ALCL with complete remission rates of 56%, and a 10-year DFS of 28%. Encouraging results have been reported with more intensive chemotherapy regimens. The addition of etoposide improved outcome. Alemtuxumab-CHOP regimen was associated with excellent remission rate but increased toxicity. The role of high-dose chemotherapy supported by ASCT has not been investigated in a trial of exclusively ALCL patients. When used in first remission, it was associated with a 5-year PFS of 64%. High-dose chemotherapy with ASCT is the standard therapeutic option for patients with relapsed or refractory disease. The role of allogeneic transplantation in patients with relapsed/refractory ALCL remains to be defined but there are data to support the contention that a graft-versus-lymphoma effect does exist. Myeloablative conditioning has been associated with 5-year PFS and OS of 40% and 41%, respectively, but a 5-year TRM of 33% was reported. Allo-SCT can be an option for relapsed/refractory ALCL in younger patients, preferably in the setting of a clinical trial. Pralatrexate, anti-CD30 monoclonal antibodies, brentuximab vedotin (SGN-35) in particular, (131)I-anti-CD45 radioantibody, yttrium-anti-CD25 radioimmunoconjugates, histone deacetylase inhibitors, bortezomib, gemcitabine, vorinostat, lenalidomide, and their combinations represent the most appealing chemotherapy and/or targeted agents to be investigated in future trials.
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Nie D, Huang K, Yin S, Li Y, Xie S, Ma L, Wang X, Wu Y, Xiao J. Synergistic/additive interaction of valproic acid with bortezomib on proliferation and apoptosis of acute myeloid leukemia cells. Leuk Lymphoma 2012; 53:2487-95. [DOI: 10.3109/10428194.2012.698273] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Sato A. Vorinostat approved in Japan for treatment of cutaneous T-cell lymphomas: status and prospects. Onco Targets Ther 2012; 5:67-76. [PMID: 22573938 PMCID: PMC3346061 DOI: 10.2147/ott.s23874] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Histone acetylation and deacetylation play important roles in the regulation of gene transcription and in the modulation of chromatin structure. The levels of histone acetylation are determined by the activities of histone acetyltransferases and histone deacetylases (HDACs). HDACs are associated with a number of oncogenes and tumor suppressor genes and can be aberrantly expressed and/or inappropriately activated in cancer cells. HDAC inhibitors have therefore recently emerged as a novel treatment modality against malignancies. They regulate gene expression by enhancing the acetylation of not only histones but also nonhistone proteins, including transcription factors, transcription regulators, signal transduction mediators, and DNA repair enzymes, and they inhibit cancer growth. Vorinostat (suberoylanilide hydroxamic acid) is one of the most potent HDAC inhibitors, and was approved in Japan in 2011 for the treatment of cutaneous T-cell lymphoma. Numerous clinical trials have shown it to be effective against cutaneous T-cell lymphoma but less so against other types of cancer. Because vorinostat can overcome resistance to or enhance the efficacy of other anticancer agents, such as 5-fluorouracil, carboplatin, paclitaxel, bortezomib, and tamoxifen, combination therapies using vorinostat and these agents have been investigated. This review introduces the background and mechanism of action of vorinostat and describes the results of clinical trials using vorinostat, both as a single agent and in combination with other anticancer agents, against cutaneous T-cell lymphoma and other malignancies.
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Affiliation(s)
- Akinori Sato
- Department of Urology, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
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Shi W, Han X, Yao J, Yang J, Shi Y. Combined effect of histone deacetylase inhibitor suberoylanilide hydroxamic acid and anti-CD20 monoclonal antibody rituximab on mantle cell lymphoma cells apoptosis. Leuk Res 2012; 36:749-55. [PMID: 22475365 DOI: 10.1016/j.leukres.2012.01.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 01/24/2012] [Accepted: 01/30/2012] [Indexed: 11/17/2022]
Abstract
Interactions between histone deacetylases inhibitor suberoylanilide hydroxamic acid (SAHA) and anti-CD20 monoclonal antibody rituximab in mantle cell lymphoma have been examined both in vitro and in vivo. The combination of SAHA and rituximab synergistically induced apoptosis, concomitant with caspase activation and Bcl-2 downregulation. These events were associated with multiple perturbations in signal transduction pathways, including inactivation of cyto-protective nuclear factor (NF)-κB, Akt, extracellular signal-regulating kinase 1/2 (ERK1/2) and p38 mitogen-activated protein kinase (p38MAPK) pathways, and activation of c-jun N-terminal kinase (JNK) when pretreated with the pan-caspase inhibitor. Moreover, the combination of SAHA and rituximab significantly inhibited tumor growth in vivo and prolonged the survival of tumor-bearing mice. However, SAHA had no apparent effect on the CD20 expression in the two MCL cell lines. Taken together, our results demonstrate the synergistic anti-MCL activity of SAHA and rituximab, and build the framework for clinical trials using SAHA-rituximab combining regimen in the treatment of MCL.
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Affiliation(s)
- Wei Shi
- Department of Medical Oncology, Cancer Institute/Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
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Horwitz SM. The emerging role of histone deacetylase inhibitors in treating T-cell lymphomas. Curr Hematol Malig Rep 2011; 6:67-72. [PMID: 21080243 DOI: 10.1007/s11899-010-0067-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
T-cell lymphomas are an uncommon and heterogeneous group of non-Hodgkin lymphomas. Historically, therapies for these diseases have been borrowed from treatments for other lymphomas. More recently, efforts have be made to identify novel agents for their activity specifically in T-cell lymphomas. A primary example of new agents with specific activity in T-cell lymphomas is the novel class of drug, histone deacetylase inhibitors. The potential activity of histone deacetylase inhibitors was discovered somewhat serendipitously, but these early discoveries were followed by some larger and more rigorous studies in T-cell lymphomas. Two compounds, vorinostat and romidepsin, are currently approved and are in clinical use for the treatment of cutaneous T-cell lymphomas. Other drugs are in development, and a large study of romidepsin in peripheral T-cell lymphoma has recently been completed. This review covers data on the use of histone deacetylase inhibitors in T-cell lymphomas, as well as early attempts, just beginning, to combine these agents with other novel therapies.
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Affiliation(s)
- Steven M Horwitz
- Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
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