101
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Nagaraju GP, Kamal MA. Challenges in the Discovery of Novel Therapeutic Agents in Cancer. Curr Drug Metab 2020; 20:931-932. [PMID: 31989914 DOI: 10.2174/138920022012200102095006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
One of the major challenges currently facing cancer therapy is the development of drug resistance either intrinsically or as a result of treatment. Treatment evasion is mediated by an intricate web of signalling cascades and adaptations caused by selective therapeutic pressure, leading to metastatic spread and patient death. Hence, discovering and designing novel therapeutic compounds and regimens based on specific alterations in the cancer microenvironment and capable of overcoming resistance to traditional therapies is necessary to improve cancer survival outcomes. These new therapeutic modalities should exhibit improved solubility, penetration capacity and bioavailability in the tumor microenvironment as well as enhanced target specificity compared to old generation compounds. The success of this endeavour will contribute to the advent of precision medicine leading to personalized therapeutic approaches for patients.
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Affiliation(s)
- Ganji Purnachandra Nagaraju
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA 30322, United States
| | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, Saudi Arabia.,Enzymoics, 7 Peterlee Place, Hebersham, NSW 2770, Australia.,Novel Global Community Educational Foundation, Australia
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102
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Zhou Y, Wang L, Wang C, Wu Y, Chen D, Lee TH. Potential implications of hydrogen peroxide in the pathogenesis and therapeutic strategies of gliomas. Arch Pharm Res 2020; 43:187-203. [PMID: 31956964 DOI: 10.1007/s12272-020-01205-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 01/05/2020] [Indexed: 12/15/2022]
Abstract
Glioma is the most common type of primary brain tumor, and it has a high mortality rate. Currently, there are only a few therapeutic approaches for gliomas, and their effects are unsatisfactory. Therefore, uncovering the pathogenesis and exploring more therapeutic strategies for the treatment of gliomas are urgently needed to overcome the ongoing challenges. Cellular redox imbalance has been shown to be associated with the initiation and progression of gliomas. Among reactive oxygen species (ROS), hydrogen peroxide (H2O2) is considered the most suitable for redox signaling and is a potential candidate as a key molecule that determines the fate of cancer cells. In this review, we discuss the potential cellular and molecular roles of H2O2 in gliomagenesis and explore the potential implications of H2O2 in radiotherapy and chemotherapy and in the ongoing challenges of current glioma treatment. Moreover, we evaluate H2O2 as a potential redox sensor and potential driver molecule of nanocatalytic therapeutic strategies for glioma treatment.
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Affiliation(s)
- Ying Zhou
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, 1 Xuefu North Road, Fuzhou, 350122, Fujian, China.,Key Laboratory of Brain Aging and Neurodegenerative Diseases of Fujian Provincial Universities and Colleges, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Long Wang
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, 1 Xuefu North Road, Fuzhou, 350122, Fujian, China
| | - Chaojia Wang
- The First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, 150040, Heilongjiang, China
| | - Yilin Wu
- The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, China
| | - Dongmei Chen
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, 1 Xuefu North Road, Fuzhou, 350122, Fujian, China
| | - Tae Ho Lee
- Fujian Key Laboratory for Translational Research in Cancer and Neurodegenerative Diseases, Institute for Translational Medicine, School of Basic Medical Sciences, Fujian Medical University, 1 Xuefu North Road, Fuzhou, 350122, Fujian, China.
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103
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Pfaff AR, Beltz J, King E, Ercal N. Medicinal Thiols: Current Status and New Perspectives. Mini Rev Med Chem 2020; 20:513-529. [PMID: 31746294 PMCID: PMC7286615 DOI: 10.2174/1389557519666191119144100] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 02/08/2023]
Abstract
The thiol (-SH) functional group is found in a number of drug compounds and confers a unique combination of useful properties. Thiol-containing drugs can reduce radicals and other toxic electrophiles, restore cellular thiol pools, and form stable complexes with heavy metals such as lead, arsenic, and copper. Thus, thiols can treat a variety of conditions by serving as radical scavengers, GSH prodrugs, or metal chelators. Many of the compounds discussed here have been in use for decades, yet continued exploration of their properties has yielded new understanding in recent years, which can be used to optimize their clinical application and provide insights into the development of new treatments. The purpose of this narrative review is to highlight the biochemistry of currently used thiol drugs within the context of developments reported in the last five years. More specifically, this review focuses on thiol drugs that represent the standard of care for their associated conditions, including N-acetylcysteine, 2,3-meso-dimercaptosuccinic acid, British anti-Lewisite, D-penicillamine, amifostine, and others. Reports of novel dosing regimens, delivery strategies, and clinical applications for these compounds were examined with an eye toward emerging approaches to address a wide range of medical conditions in the future.
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Affiliation(s)
- Annalise R. Pfaff
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, U.S.A
| | - Justin Beltz
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, U.S.A
| | - Emily King
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, U.S.A
| | - Nuran Ercal
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, U.S.A
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104
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Sharma D, Giles A, Hashim A, Yip J, Ji Y, Do NNA, Sebastiani J, Tran WT, Farhat G, Oelze M, Czarnota GJ. Ultrasound microbubble potentiated enhancement of hyperthermia-effect in tumours. PLoS One 2019; 14:e0226475. [PMID: 31851698 PMCID: PMC6919613 DOI: 10.1371/journal.pone.0226475] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 11/27/2019] [Indexed: 12/30/2022] Open
Abstract
It is now well established that for tumour growth and survival, tumour vasculature is an important element. Studies have demonstrated that ultrasound-stimulated microbubble (USMB) treatment causes extensive endothelial cell death leading to tumour vascular disruption. The subsequent rapid vascular collapse translates to overall increases in tumour response to various therapies. In this study, we explored USMB involvement in the enhancement of hyperthermia (HT) treatment effects. Human prostate tumour (PC3) xenografts were grown in mice and were treated with USMB, HT, or with a combination of the two treatments. Treatment parameters consisted of ultrasound pressures of 0 to 740 kPa, the use of perfluorocarbon-filled microbubbles administered intravenously, and an HT temperature of 43°C delivered for various times (0–50 minutes). Single and multiple repeated treatments were evaluated. Tumour response was monitored 24 hours after treatments and tumour growth was monitored for up to over 30 days for a single treatment and 4 weeks for multiple treatments. Tumours exposed to USMB combined with HT exhibited enhanced cell death (p<0.05) and decreased vasculature (p<0.05) compared to untreated tumours or those treated with either USMB alone or HT alone within 24 hours. Deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) staining and cluster of differentiation 31 (CD31) staining were used to assess cell death and vascular content, respectively. Further, tumours receiving a single combined USMB and HT treatment exhibited decreased tumour volumes (p<0.05) compared to those receiving either treatment alone when monitored over the duration of 30 days. Additionally, tumour response monitored weekly up to 4 weeks demonstrated a reduced vascular index and tumour volume, increased fibrosis and lesser number of proliferating cells with combined treatment of USMB and HT. Thus in this study, we characterize a novel therapeutic approach that combines USMB with HT to enhance treatment responses in a prostate cancer xenograft model in vivo.
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Affiliation(s)
- Deepa Sharma
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Anoja Giles
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Amr Hashim
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Jodi Yip
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Yipeng Ji
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | | | | | - William Tyler Tran
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Golnaz Farhat
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Michael Oelze
- Department of Electrical and Computer Engineering, University of Illinois, Urbana-Champaign, IL, United States of America
| | - Gregory J. Czarnota
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
- * E-mail:
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105
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Huang R, Xiang J, Zhou P. Vitamin D, gut microbiota, and radiation-related resistance: a love-hate triangle. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:493. [PMID: 31843023 PMCID: PMC6915920 DOI: 10.1186/s13046-019-1499-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 12/04/2019] [Indexed: 12/12/2022]
Abstract
Radiation resistance is a serious issue in radiotherapy. Increasing evidence indicates that the human gut microbiome plays a role in the development of radiation resistance. Vitamin D is an important supplement for cancer patients treated with radiotherapy. Against this background, this paper reviewed research regarding the associations among vitamin D, microbiota dysbiosis, and radiation resistance. A hypothesis is developed to describe the relationships among vitamin D, the gut microbiota, and radiotherapy outcomes. Radiotherapy changes the composition of the gut microbiota, which in turn influence the serum level of vitamin D, and its distribution and metabolism in the body. Alteration of vitamin D level influences the patient response to radiotherapy, where the underlying mechanisms may be associated with the intestinal microenvironment, immune molecules in the intestines, gut microbiome metabolites, and signaling pathways associated with vitamin D receptors. Our understanding of the contribution of vitamin D and the gut microbiota to radiotherapy outcomes has been increasing gradually. A better understanding of the relationships among vitamin D, the gut microbiota, and radiotherapy outcomes will shed more light on radiation resistance, and also promote the development of new strategies for overcoming it, thus addressing an important challenge associated with the currently available radiotherapy modalities for cancer patients.
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Affiliation(s)
- Ruixue Huang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan Province, China
| | - Jing Xiang
- Department of Occupational and Environmental Health, Xiangya School of Public Health, Central South University, Changsha, 410078, Hunan Province, China
| | - Pingkun Zhou
- Institute for Chemical Carcinogenesis, State Key Laboratory of Respiratory, School of Public Health, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China. .,Department of Radiation Biology, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, AMMS, Beijing, 100850, China.
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106
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Kefayat A, Ghahremani F, Safavi A, Hajiaghababa A, Moshtaghian J. C-phycocyanin: a natural product with radiosensitizing property for enhancement of colon cancer radiation therapy efficacy through inhibition of COX-2 expression. Sci Rep 2019; 9:19161. [PMID: 31844085 PMCID: PMC6915779 DOI: 10.1038/s41598-019-55605-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/29/2019] [Indexed: 12/13/2022] Open
Abstract
Different chemical and nanomaterial agents have been introduced for radiosensitizing purposes. However, many researchers believe these agents are far away from clinical application due to side effects and limited knowledge about their behavior in the human body. In this study, C-phycocyanin (C-PC) was used as a natural radiosensitizer for enhancement of radiation therapy (RT) efficacy. C-PC treatment's effect on the COX-2 expression of cancer cells was investigated by flow cytometry, western blot, qRT-PCR analyses in vitro and in vivo. Subsequently, the radiosensitizing effect of C-PC treatment was investigated by MTT and clonogenic cell survival assays for CT-26, DLD-1, HT-29 colon cancer cell lines and the CRL-1831 as normal colonic cells. In addition, the C-PC treatment effect on the radiation therapy efficacy was evaluated according to CT-26 tumor's growth progression and immunohistochemistry analyses of Ki-67 labeling index. C-PC treatment (200 µg/mL) could significantly enhance the radiation therapy efficacy in vitro and in vivo. Synergistic interaction was detected at C-PC and radiation beams co-treatment based on Chou and Talalay formula (combination index <1), especially at 200 µg/mL C-PC and 6 Gy radiation dosages. The acquired DEF of C-PC treatment was 1.39, 1.4, 1.63, and 1.05 for CT-26, DLD-1, HT-29, and CRL-1831 cells, respectively. Also, C-PC + RT treated mice exhibited 35.2% lower mean tumors' volume and about 6 days more survival time in comparison with the RT group (P < 0.05). In addition, C-PC + RT group exhibited 54% lower Ki-67 index in comparison with the RT group. Therefore, C-PC can exhibit high radiosensitizing effects. However, the potential cardiovascular risks of C-PC as a COX-2 inhibitor should be evaluated with extensive preclinical testing before developing this agent for clinical trials.
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Affiliation(s)
- Amirhosein Kefayat
- Department of Oncology, Cancer Prevention Research Center, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
| | - Fatemeh Ghahremani
- Department of Medical Physics and Radiotherapy, Arak University of Medical Sciences, Arak, 38481-76941, Iran.
| | - Ashkan Safavi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Jamal Moshtaghian
- Division of Cell and Molecular Biology, Department of Biology, Faculty of Science, University of Isfahan, Isfahan, Iran
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107
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Radiosensitive core/satellite ternary heteronanostructure for multimodal imaging-guided synergistic cancer radiotherapy. Biomaterials 2019; 226:119545. [PMID: 31648136 DOI: 10.1016/j.biomaterials.2019.119545] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 10/12/2019] [Accepted: 10/13/2019] [Indexed: 01/06/2023]
Abstract
Developing safe, effective and targeting radiosensitizers with clear action mechanisms to achieve synergistic localized cancer treatment is an important strategy for radiotherapy. Herein, we design and synthesize a ternary heteronanostructure radiosensitizer (SeAuFe-EpC) with core/satellite morphology by a simple method to realize multimodal imaging-guided cancer radiotherapy. The mechanistic studies reveal that Se incorporation could drastically improve the electrical conductivity and lower the energy barrier between the three components, resulting in more electrons transfer between Se-Au interface and migration over the heterogeneous junction of Au-Fe3O4 NPs interface. This synergistic interaction enhanced the energy transfer and facilitated more excited excitons generated by SeAuFe-EpC NPs, thus promoting the transformation of 3O2 to 1O2via resonance energy transfer, finally resulting in irreversible cancer cell apoptosis. Additionally, based on the X-ray attenuation ability and high NIR absorption of AuNPs and the superparamagnetism of Fe3O4, in vivo computer tomography, photoacoustic and magnetic resonance tri-modal imaging have been employed to visualize the tracking and targeting ability of the NPs. As expected, the NPs specifically accumulated in orthotopic breast tumor area and achieved synergistic anticancer efficacy, but showed no toxic side effects on main organs. Collectively, this study sheds light on the potential roles of core/satellite heteronanostructure in imaging-guided cancer radiotherapy.
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108
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Basu R, Kopchick JJ. The effects of growth hormone on therapy resistance in cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2019; 2:827-846. [PMID: 32382711 PMCID: PMC7204541 DOI: 10.20517/cdr.2019.27] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pituitary derived and peripherally produced growth hormone (GH) is a crucial mediator of longitudinal growth, organ development, metabolic regulation with tissue specific, sex specific, and age-dependent effects. GH and its cognate receptor (GHR) are expressed in several forms of cancer and have been validated as an anti-cancer target through a large body of in vitro, in vivo and epidemiological analyses. However, the underlying molecular mechanisms of GH action in cancer prognosis and therapeutic response had been sparse until recently. This review assimilates the critical details of GH-GHR mediated therapy resistance across different cancer types, distilling the therapeutic implications based on our current understanding of these effects.
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Affiliation(s)
- Reetobrata Basu
- Ohio University Heritage College of Osteopathic Medicine (OU-HCOM), Ohio University, Athens, OH 45701, USA.,Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA
| | - John J Kopchick
- Ohio University Heritage College of Osteopathic Medicine (OU-HCOM), Ohio University, Athens, OH 45701, USA.,Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA
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109
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Malyarenko OS, Malyarenko TV, Kicha AA, Ivanchina NV, Ermakova SP. Effects of Polar Steroids from the Starfish Patiria (=Asterina) pectinifera in Combination with X-Ray Radiation on Colony Formation and Apoptosis Induction of Human Colorectal Carcinoma Cells. Molecules 2019; 24:molecules24173154. [PMID: 31470638 PMCID: PMC6749381 DOI: 10.3390/molecules24173154] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/14/2019] [Accepted: 08/27/2019] [Indexed: 12/24/2022] Open
Abstract
Despite significant advances in the understanding, prevention, and treatment of cancer, the disease continues to affect millions of people worldwide. Chemoradiation therapy is a rational approach that has already proven beneficial for several malignancies. However, the existence of toxicity to normal tissue is a serious limitation of this treatment modality. The aim of the present study is to investigate the ability of polar steroids from starfish Patiria (=Asterina) pectinifera to enhance the efficacy of radiation therapy in colorectal carcinoma cells. The cytotoxic activity of polar steroids and X-ray radiation against DLD-1, HCT 116, and HT-29 cells was determined by an MTS assay. The effect of compounds, X-ray, and their combination on colony formation was studied using the soft agar method. The molecular mechanism of the radiosensitizing activity of asterosaponin P1 was elucidated by western blotting and the DNA comet assay. Polar steroids inhibited colony formation in the tested cells, and to a greater extent in HT-29 cells. Asterosaponin P1 enhanced the efficacy of radiation and, as a result, reduced the number and size of the colonies of colorectal cancer cells. The radiosensitizing activity of asterosaponin P1 was realized by apoptosis induction through the regulation of anti- and pro-apoptotic protein expression followed by caspase activation and DNA degradation.
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Affiliation(s)
- Olesya S Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 100-let Vladivostok Ave., 690022 Vladivostok, Russia.
| | - Timofey V Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 100-let Vladivostok Ave., 690022 Vladivostok, Russia
- Department of Bioorganic chemistry and Biotechnology, School of Natural Sciences, Far Eastern Federal University, Sukhanova str. 8, 690000 Vladivostok, Russia
| | - Alla A Kicha
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 100-let Vladivostok Ave., 690022 Vladivostok, Russia
| | - Natalia V Ivanchina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 100-let Vladivostok Ave., 690022 Vladivostok, Russia
| | - Svetlana P Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159 100-let Vladivostok Ave., 690022 Vladivostok, Russia
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110
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Mohammadi C, Najafi R. DCLK1 as a Promising Marker for Radioresistance in Colorectal Cancer. J Gastrointest Cancer 2019; 51:714-715. [PMID: 31422542 DOI: 10.1007/s12029-019-00292-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Chiman Mohammadi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rezvan Najafi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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111
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Chen YH, Wang CW, Wei MF, Tzeng YS, Lan KH, Cheng AL, Kuo SH. Maintenance BEZ235 Treatment Prolongs the Therapeutic Effect of the Combination of BEZ235 and Radiotherapy for Colorectal Cancer. Cancers (Basel) 2019; 11:cancers11081204. [PMID: 31430901 PMCID: PMC6721476 DOI: 10.3390/cancers11081204] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022] Open
Abstract
Our previous study demonstrated that administration of NVP-BEZ235 (BEZ235), a dual PI3K/mTOR inhibitor, before radiotherapy (RT) enhanced the radiotherapeutic effect in colorectal cancer (CRC) cells both in vitro and in vivo. Here, we evaluated whether maintenance BEZ235 treatment, after combinatorial BEZ235 + RT therapy, prolonged the antitumor effect in CRC. K-RAS mutant CRC cells (HCT116 and SW480), wild-type CRC cells (HT29), and HCT116 xenograft tumors were separated into the following six study groups: (1) untreated (control); (2) RT alone; (3) BEZ235 alone; (4) RT + BEZ235; (5) maintenance BEZ235 following RT + BEZ235 (RT + BEZ235 + mBEZ235); and (6) maintenance BEZ235 following BEZ235 (BEZ235 + mBEZ235). RT + BEZ235 + mBEZ235 treatment significantly inhibited cell viability and increased apoptosis in three CRC cell lines compared to the other five treatments in vitro. In the HCT116 xenograft tumor model, RT + BEZ235 + mBEZ235 treatment significantly reduced the tumor size when compared to the other five treatments. Furthermore, the expression of mTOR signaling molecules (p-rpS6 and p-eIF4E), DNA double-strand break (DSB) repair-related molecules (p-ATM and p-DNA-PKcs), and angiogenesis-related molecules (VEGF-A and HIF-1α) was significantly downregulated after RT + BEZ235 + mBEZ235 treatment both in vitro and in vivo when compared to the RT + BEZ235, RT, BEZ235, BEZ235 + mBEZ235, and control treatments. Cleaved caspase-3, cleaved poly (ADP-ribose) polymerase (PARP), 53BP1, and γ-H2AX expression in the HCT116 xenograft tissue and three CRC cell lines were significantly upregulated after RT + BEZ235 + mBEZ235 treatment. Maintenance BEZ235 treatment in CRC cells prolonged the inhibition of cell viability, enhancement of apoptosis, attenuation of mTOR signaling, impairment of the DNA-DSB repair mechanism, and downregulation of angiogenesis that occurred due to concurrent BEZ235 and RT treatment.
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Affiliation(s)
- Yu-Hsuan Chen
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Chun-Wei Wang
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Ming-Feng Wei
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan.
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Yi-Shin Tzeng
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Keng-Hsueh Lan
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
| | - Ann-Lii Cheng
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
- Graduate Institute of Oncology, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
- National Taiwan University Cancer Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 10002, Taiwan
| | - Sung-Hsin Kuo
- Department of Oncology, National Taiwan University Hospital, Taipei 10002, Taiwan.
- Cancer Research Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
- Graduate Institute of Oncology, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
- National Taiwan University Cancer Center, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
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112
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Gott M, Yang P, Kortz U, Stephan H, Pietzsch HJ, Mamat C. A 224Ra-labeled polyoxopalladate as a putative radiopharmaceutical. Chem Commun (Camb) 2019; 55:7631-7634. [PMID: 31197298 DOI: 10.1039/c9cc02587a] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Despite their attractive properties, internal targeted alpha therapies using 223/224Ra are limited to bone-seeking applications. As there is no suitable chelator available, the search for new carriers to stably bind Ra2+ and to connect it to biological target molecules is necessary. Polyoxopalladates represent a class of compounds where Ra2+ can be easily introduced into the Pd-POM core during a facile one-pot preparation. Due to the formation of a protein corona, the connection to other targeting (bio)macromolecules is possible.
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Affiliation(s)
- Matthew Gott
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Dresden, Germany.
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113
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Song KH, Jung SY, Park JI, Ahn J, Park JK, Um HD, Park IC, Hwang SG, Ha H, Song JY. Inhibition of Karyopherin-α2 Augments Radiation-Induced Cell Death by Perturbing BRCA1-Mediated DNA Repair. Int J Mol Sci 2019; 20:ijms20112843. [PMID: 31212646 PMCID: PMC6600173 DOI: 10.3390/ijms20112843] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/05/2019] [Accepted: 06/11/2019] [Indexed: 12/18/2022] Open
Abstract
Ionizing radiation (IR) has been widely used in the treatment of cancer. Radiation-induced DNA damage triggers the DNA damage response (DDR), which can confer radioresistance and early local recurrence by activating DNA repair pathways. Since karyopherin-α2 (KPNA2), playing an important role in nucleocytoplasmic transport, was significantly increased by IR in our previous study, we aimed to determine the function of KPNA2 with regard to DDR. Exposure to radiation upregulated KPNA2 expression in human colorectal cancer HT29 and HCT116 cells and breast carcinoma MDA-MB-231 cells together with the increased expression of DNA repair protein BRCA1. The knockdown of KPNA2 effectively increased apoptotic cell death via inhibition of BRCA1 nuclear import following IR. Therefore, we propose that KPNA2 is a potential target for overcoming radioresistance via interruption to DDR.
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Affiliation(s)
- Kyung-Hee Song
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea.
| | - Seung-Youn Jung
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Jeong-In Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Jiyeon Ahn
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Jong Kuk Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Hong-Duck Um
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - In-Chul Park
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Sang-Gu Hwang
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
| | - Hunjoo Ha
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea.
| | - Jie-Young Song
- Division of Radiation Biomedical Research, Korea Institute of Radiological & Medical Sciences, Seoul 01812, Korea.
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Konings K, Vandevoorde C, Belmans N, Vermeesen R, Baselet B, Walleghem MV, Janssen A, Isebaert S, Baatout S, Haustermans K, Moreels M. The Combination of Particle Irradiation With the Hedgehog Inhibitor GANT61 Differently Modulates the Radiosensitivity and Migration of Cancer Cells Compared to X-Ray Irradiation. Front Oncol 2019; 9:391. [PMID: 31139573 PMCID: PMC6527843 DOI: 10.3389/fonc.2019.00391] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 04/26/2019] [Indexed: 12/13/2022] Open
Abstract
Due to the advantages of charged particles compared to conventional radiotherapy, a vast increase is noted in the use of particle therapy in the clinic. These advantages include an improved dose deposition and increased biological effectiveness. Metastasis is still an important cause of mortality in cancer patients and evidence has shown that conventional radiotherapy can increase the formation of metastasizing cells. An important pathway involved in the process of metastasis is the Hedgehog (Hh) signaling pathway. Recent studies have demonstrated that activation of the Hh pathway, in response to X-rays, can lead to radioresistance and increased migratory, and invasive capabilities of cancer cells. Here, we investigated the effect of X-rays, protons, and carbon ions on cell survival, migration, and Hh pathway gene expression in prostate cancer (PC3) and medulloblastoma (DAOY) cell lines. In addition, the potential modulation of cell survival and migration by the Hh pathway inhibitor GANT61 was investigated. We found that in both cell lines, carbon ions were more effective in decreasing cell survival and migration as well as inducing more significant alterations in the Hh pathway genes compared to X-rays or protons. In addition, we show here for the first time that the Hh inhibitor GANT61 is able to sensitize DAOY medulloblastoma cells to particle radiation (proton and carbon ion) but not to conventional X-rays. This important finding demonstrates that the results of combination treatment strategies with X-ray radiotherapy cannot be automatically extrapolated to particle therapy and should be investigated separately. In conclusion, combining GANT61 with particle radiation could offer a benefit for specific cancer types with regard to cancer cell survival.
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Affiliation(s)
- Katrien Konings
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium.,Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven, Leuven, Belgium
| | | | - Niels Belmans
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium.,Laboratory of Morphology, Biomedical Research Institute (BIOMED), Hasselt University, Diepenbeek, Belgium
| | - Randy Vermeesen
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Bjorn Baselet
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Merel Van Walleghem
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Ann Janssen
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Sofie Isebaert
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven, Leuven, Belgium.,Department of Radiation Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Sarah Baatout
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
| | - Karin Haustermans
- Laboratory of Experimental Radiotherapy, Department of Oncology, KU Leuven, Leuven, Belgium.,Department of Radiation Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Marjan Moreels
- Radiobiology Unit, Belgian Nuclear Research Center (SCK•CEN), Institute for Environment, Health and Safety, Mol, Belgium
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115
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Dabili S, Fallah S, Aein M, Vatannejad A, Panahi G, Fadaei R, Moradi N, Shojaii A. Survey of the effect of doxorubicin and flavonoid extract of white Morus alba leaf on apoptosis induction in a-172 GBM cell line. Arch Physiol Biochem 2019; 125:136-141. [PMID: 29463109 DOI: 10.1080/13813455.2018.1441871] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this study, the effect of doxorubicin, flavonoid extract of white Morus alba leaf (MFE) and a combination of doxorubicin and flavonoid extract on Bax and Bcl2 levels and caspase 3 activity of cancer A-172 GBM cell line was investigated. Bax/Bcl2 levels of treated A-172 GBM cell line with flavonoid extract of white mulberry leaf were estimated by ELISA methods. Caspase 3 activity of treated A-172 GBM cells was determined by calorimetric assay. The flow cytometry assessment was used to estimate the apoptosis percent of treated A-172 GBM cells. Treatment of A-172 GBM cells with MFE, doxorubicin and a combination of MFE and doxorubicin caused a significant decrease in Bcl2 level and an increase in Bax level. The apoptosis percent of treated cells were also elevated significantly. Present results suggest that concomitant use of herbal medicine and chemotherapy may be an effective alternative method for the treatment of cancers.
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Affiliation(s)
- Sheyda Dabili
- a Department of Biochemistry , Iran University of Medical Sciences , Tehran , Iran
| | - Soudabeh Fallah
- a Department of Biochemistry , Iran University of Medical Sciences , Tehran , Iran
| | - Mojdeh Aein
- a Department of Biochemistry , Iran University of Medical Sciences , Tehran , Iran
| | - Akram Vatannejad
- b Department of Biochemistry , Tehran University of Medical Sciences , Tehran , Iran
| | - Ghodratollah Panahi
- b Department of Biochemistry , Tehran University of Medical Sciences , Tehran , Iran
| | - Reza Fadaei
- b Department of Biochemistry , Tehran University of Medical Sciences , Tehran , Iran
| | - Nariman Moradi
- a Department of Biochemistry , Iran University of Medical Sciences , Tehran , Iran
| | - Asie Shojaii
- c Department of Medicinal Plants , Research Institute for Islamic and Complementary Medicine, Iran University of Medical Sciences , Tehran , Iran
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116
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DuRoss AN, Neufeld MJ, Rana S, Thomas CR, Sun C. Integrating nanomedicine into clinical radiotherapy regimens. Adv Drug Deliv Rev 2019; 144:35-56. [PMID: 31279729 PMCID: PMC6745263 DOI: 10.1016/j.addr.2019.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/02/2019] [Accepted: 07/02/2019] [Indexed: 01/06/2023]
Abstract
While the advancement of clinical radiotherapy was driven by technological innovations throughout the 20th century, continued improvement relies on rational combination therapies derived from biological insights. In this review, we highlight the importance of combination radiotherapy in the era of precision medicine. Specifically, we survey and summarize the areas of research where improved understanding in cancer biology will propel the field of radiotherapy forward by allowing integration of novel nanotechnology-based treatments.
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Affiliation(s)
- Allison N DuRoss
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA
| | - Megan J Neufeld
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA
| | - Shushan Rana
- Department of Radiation Medicine, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Charles R Thomas
- Department of Radiation Medicine, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Conroy Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR 97201, USA; Department of Radiation Medicine, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA.
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Li Z, Chen Y, An T, Liu P, Zhu J, Yang H, Zhang W, Dong T, Jiang J, Zhang Y, Jiang M, Yang X. Nuciferine inhibits the progression of glioblastoma by suppressing the SOX2-AKT/STAT3-Slug signaling pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:139. [PMID: 30922391 PMCID: PMC6440136 DOI: 10.1186/s13046-019-1134-y] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/13/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Nuciferine (NF), extracted from the leaves of N. nucifera Gaertn, has been shown to exhibit anti-tumor and anti-viral pharmacological properties. It can also penetrate the blood brain barrier (BBB). However, the mechanism by which NF inhibits glioblastoma (GBM) progression is not well understood. We aimed to determine the anti-tumor effect of NF on GBM cell lines and clarify the potential molecular mechanism involved. METHODS U87MG and U251 cell lines were used in vitro to assess the anti-tumor efficacy of NF. Cytotoxicity, viability, and proliferation were evaluated by MTT and colony formation assay. After Annexin V-FITC and PI staining, flow cytometry was performed to evaluate apoptosis and cell cycle changes in NF-treated GBM cells. Wound healing and Transwell assays were used to assess migration and invasion of GBM cells. Western blot analysis, immunofluorescence staining, immunohistochemistry, and bioinformatics were used to gain insights into the molecular mechanisms. Preclinical therapeutic efficacy was mainly estimated by ultrasound and MRI in xenograft nude mouse models. RESULTS NF inhibited the proliferation, mobility, stemness, angiogenesis, and epithelial-to-mesenchymal transition (EMT) of GBM cells. Additionally, NF induced apoptosis and G2 cell cycle arrest. Slug expression was also decreased by NF via the AKT and STAT3 signaling pathways. Interestingly, we discovered that NF affected GBM cells partly by targeting SOX2, which may be upstream of the AKT and STAT3 pathways. Finally, NF led to significant tumor control in GBM xenograft models. CONCLUSIONS NF inhibited the progression of GBM via the SOX2-AKT/STAT3-Slug signaling pathway. SOX2-targeting with NF may offer a novel therapeutic approach for GBM treatment.
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Affiliation(s)
- Zizhuo Li
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Yaodong Chen
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Tingting An
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Pengfei Liu
- Department of Magnetic Resonance, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Jiyuan Zhu
- Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Haichao Yang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Wei Zhang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Tianxiu Dong
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Jian Jiang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Yu Zhang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Maitao Jiang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China
| | - Xiuhua Yang
- Department of Abdominal Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, People's Republic of China.
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118
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Vendrely V, Amintas S, Noel C, Moranvillier I, Lamrissi I, Rousseau B, Coulibaly S, Bedel A, Moreau-Gaudry F, Buscail E, Chiche L, Belleannée G, Dupin C, Dabernat S. Combination treatment of resveratrol and capsaicin radiosensitizes pancreatic tumor cells by unbalancing DNA repair response to radiotherapy towards cell death. Cancer Lett 2019; 451:1-10. [PMID: 30849482 DOI: 10.1016/j.canlet.2019.02.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 01/29/2019] [Accepted: 02/21/2019] [Indexed: 01/19/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains one of the deadliest cancers because it is highly resistant to every available therapeutic strategy, in particular conventional chemotherapy or radiotherapy (RT). Sensitizing tumor cells to existing treatments remains a good option to obtain fast and applicable results. Considering that ionizing radiations induce radiolysis-derived reactive oxygen species (ROS), we hypothesized that ROS-inducing bioactive food components (BFCs) could exacerbate ROS-related cell damages, including DNA double stranded breaks (DSBs), leaving the cellular ROS scavenging systems overwhelmed, and precipitating tumor cell death. Combination of resveratrol and capsaicin radiosensitized radiosensitive tumor cells, but RT did not increase BFC combination toxicity in radioresistant tumor cells. BFC addition to RT increased ROS production and led to significant tumor volume reduction in xenografted mouse preclinical model. Strikingly, BFCs inhibited RT-induced DNA damage molecular response by strongly limiting the first steps of DSB repair, and by keeping cells in cell cycle, provoking exacerbated intrinsic apoptosis. This study positions BFCs as potent radiosensitizers when combined, and identifies an actionable molecular pathway by resveratrol and capsaicin combination.
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Affiliation(s)
| | - Samuel Amintas
- CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | | | | | - Isabelle Lamrissi
- INSERM U1035, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | | | | | - Aurélie Bedel
- INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | - François Moreau-Gaudry
- INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | - Etienne Buscail
- INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | - Laurence Chiche
- INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France
| | | | | | - Sandrine Dabernat
- INSERM U1035, Bordeaux, France; CHU de Bordeaux, Bordeaux, France; Université de Bordeaux, Bordeaux, France.
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119
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Malyarenko OS, Zdobnova EV, Silchenko AS, Kusaykin MI, Ermakova SP. Radiosensitizing effect of the fucoidan from brown alga Fucus evanescens and its derivative in human cancer cells. Carbohydr Polym 2019; 205:465-471. [PMID: 30446129 DOI: 10.1016/j.carbpol.2018.10.083] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 10/24/2018] [Accepted: 10/24/2018] [Indexed: 01/05/2023]
Abstract
Fucoidan from brown alga Fucus evanescens and its product of enzymatic hydrolysis have precisely established structure and possess significant biological activities. The aim of present study was to determine radiosensitizing activity of fucoidan from brown alga F. evanescens and its derivative in human melanoma, breast adenocarcinoma, and colorectal carcinoma cell lines and elucidate mechanism of their action. The fucoidan from F. evanescens and its derivative had a comparable radiosensitizing activity and increased the inhibiting effect of X-ray radiation on proliferation and colony formation of human cancer cells, with significant inhibition of melanoma cells. The molecular mechanism of this action was associated with the induction of apoptosis by activating the initiator and effector caspases, suppressing the expression of the anti-apoptotic protein, and enhancing the fragmentation of DNA. The obtained data confirm the prospects of using fucoidan's derivative in combination with radiation therapy for the improvement of the schemes of cancer therapy.
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Affiliation(s)
- O S Malyarenko
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation.
| | - E V Zdobnova
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation.
| | - A S Silchenko
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation.
| | - M I Kusaykin
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation.
| | - S P Ermakova
- Laboratory of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russian Federation.
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120
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Reissig F, Hübner R, Steinbach J, Pietzsch HJ, Mamat C. Facile preparation of radium-doped, functionalized nanoparticles as carriers for targeted alpha therapy. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00208a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile preparation of nanoparticles with enhanced properties obtained by co-precipitation containing radium-224 and functional groups to connect target (bio)molecules for therapeutic applications in oncology is described.
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Affiliation(s)
- Falco Reissig
- Institut für Radiopharmazeutische Krebsforschung
- Helmholtz-Zentrum Dresden-Rossendorf
- D-01328 Dresden
- Germany
- Fakultät Chemie und Lebensmittelchemie
| | - René Hübner
- Institut für Ionenstrahlphysik und Materialforschung
- Helmholtz-Zentrum Dresden-Rossendorf
- D-01328 Dresden
- Germany
| | - Jörg Steinbach
- Institut für Radiopharmazeutische Krebsforschung
- Helmholtz-Zentrum Dresden-Rossendorf
- D-01328 Dresden
- Germany
- Fakultät Chemie und Lebensmittelchemie
| | - Hans-Jürgen Pietzsch
- Institut für Radiopharmazeutische Krebsforschung
- Helmholtz-Zentrum Dresden-Rossendorf
- D-01328 Dresden
- Germany
| | - Constantin Mamat
- Institut für Radiopharmazeutische Krebsforschung
- Helmholtz-Zentrum Dresden-Rossendorf
- D-01328 Dresden
- Germany
- Fakultät Chemie und Lebensmittelchemie
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Classen F, Kranz P, Riffkin H, Pompsch M, Wolf A, Göpelt K, Baumann M, Baumann J, Brockmeier U, Metzen E. Autophagy induced by ionizing radiation promotes cell death over survival in human colorectal cancer cells. Exp Cell Res 2019; 374:29-37. [DOI: 10.1016/j.yexcr.2018.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/02/2018] [Accepted: 11/04/2018] [Indexed: 12/21/2022]
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122
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Si LB, Zhang MZ, Han Q, Huang JN, Long X, Long F, Zhao RCH, Huang JZ, Liu ZF, Zhao R, Zhang HL, Wang XJ. Sensitization of keloid fibroblasts by quercetin through the PI3K/Akt pathway is dependent on regulation of HIF-1α. Am J Transl Res 2018; 10:4223-4234. [PMID: 30662665 PMCID: PMC6325497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 11/03/2018] [Indexed: 06/09/2023]
Abstract
Keloids are raised, red, hard and irregular tumors that are prone to extend beyond the wound borders. Surgical excision is not sufficient to eradicate a keloid. Adjuvant therapy with radiation is a recommended treatment that reportedly achieves improved efficacy. However, radiation does not only kill cells in the keloid tissue but also stimulates their resistance, and intractable cases can display continuous recurrence. Quercetin was initially extracted from natural products and is used as a dietary supplement. The role of quercetin as an oxidant scavenger has been highlighted in many studies and has drawn interest to the application of ionizing radiation (IR) sensitization. In this study, we first demonstrate that keloid fibroblasts acquire resistance after IR treatment, and this can be relieved by treatment with quercetin. Further, we showed that hypoxia-inducible factor 1 (HIF-1), a prognostic marker used in clinical practice after radiation therapy, was associated with stronger radioresistance in keloid fibroblasts, which was downregulated after quercetin treatment. The inhibition of HIF-1 expression by quercetin was found to be dependent on the phosphatidylinositol-3-kinase (PI3K)/Akt pathway. Quercetin has been reported to reduce the phosphorylation of Akt. Taken together, we revealed one mechanism underlying the suppression of radioresistance by quercetin, which involved the regulation of HIF-1α by the PI3K/Akt pathway. Our study provides a molecular basis for the application of quercetin in radiation sensitization in the treatment of keloids.
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Affiliation(s)
- Lou-Bin Si
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Ming-Zi Zhang
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Qin Han
- Center of Excellence in Tissue Engineering, Istitute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100005, China
| | - Jian-Nan Huang
- Department of Neurosurgery, Northern Jiangsu People’s Hospital, Dalian Medical UniversityDalian 116044, Liaoning, China
| | - Xiao Long
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Fei Long
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Robert Chun-Hua Zhao
- Center of Excellence in Tissue Engineering, Istitute of Basic Medical Sciences and School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100005, China
| | - Jiu-Zuo Huang
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Zhi-Fei Liu
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Ru Zhao
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Hai-Lin Zhang
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
| | - Xiao-Jun Wang
- Department of Plastic Surgery, Peking Union Medical College HospitalBeijing 100730, China
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Park S, Kim YS, Kim DY, So I, Jeon JH. PI3K pathway in prostate cancer: All resistant roads lead to PI3K. Biochim Biophys Acta Rev Cancer 2018; 1870:198-206. [DOI: 10.1016/j.bbcan.2018.09.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/13/2018] [Accepted: 09/13/2018] [Indexed: 12/19/2022]
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Yan Y, Su W, Zeng S, Qian L, Chen X, Wei J, Chen N, Gong Z, Xu Z. Effect and Mechanism of Tanshinone I on the Radiosensitivity of Lung Cancer Cells. Mol Pharm 2018; 15:4843-4853. [PMID: 30216081 DOI: 10.1021/acs.molpharmaceut.8b00489] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Resistance to radiotherapy is one of the main obstacles to improving cancer prognoses. To effectively destroy cancer cells, novel radiation sensitizers are needed. Recently, several natural products have been shown to exhibit promising tumor-killing properties. However, little is known about the specific mechanisms of these natural compounds on cancer treatment. In this study, after screening a high-throughput natural product library, we identified tanshinone I (Tan I) as a potential radiation sensitizer in lung cancer cells. METHODS Lung cancer radioresistant cell lines, H358-IR and H157-IR, were first established to confirm the radioresistant phenotypes. After that, a natural product library was used to screen the potential radiation sensitizer. We further examined the inhibition functions of Tan I on radioresistant cancer cells via a series of experiments. RESULTS Tan I significantly inhibited cell proliferation and clone formation, consequently enhancing radiosensitivity in radioresistant lung cancer cells, H358-IR and H157-IR. Stable isotope labeling of amino acids in cell culture (SILAC)-based quantitative proteomics indicated that Tan I downregulates expression of pro-oncogenic protein phosphoribosyl pyrophosphate aminotransferase (PPAT) in both H358-IR and H157-IR cells. Further analysis of molecular docking showed that Tan I is well-docked into the active pocket of the structure of PPAT, serving as a potential PPAT inhibitor. CONCLUSIONS Taken together, these findings suggest that inhibition of the tumor promoter PPAT by Tan I exerts marked inhibitory effects on radioresistant lung cancer cells, improving radiation efficacy.
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Liu C, Mann D, Sinha UK, Kokot NC. The molecular mechanisms of increased radiosensitivity of HPV-positive oropharyngeal squamous cell carcinoma (OPSCC): an extensive review. J Otolaryngol Head Neck Surg 2018; 47:59. [PMID: 30241572 PMCID: PMC6150985 DOI: 10.1186/s40463-018-0302-y] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 08/27/2018] [Indexed: 12/19/2022] Open
Abstract
Head and neck carcinomas (HNCs) collectively are the sixth most common cancer with an annual incidence of about 400,000 cases in the US. The most well-established risk factors for HNCs are tobacco and alcohol abuse. With the increasing public awareness, the incidence of HNCs is decreasing. But there is an increasing incidence of oropharyngeal squamous cell carcinoma (OPSCC) has been observed during the last decade. This phenomena is associated with persistent infection with high-risk HPV. HPV associated OPSCC patients tend to be younger males of high socioeconomic status. The increasing incidence causes a significant loss to social resources, given that it's reported that HPV associated OPSCC represents about 60% of OPSCC cases. There is a growing amount of data supporting the hypothesis that HPV-associated OPSCC has a better survival rate due to a higher sensitivity to chemotherapy and radiotherapy as compared to HPV-unrelated OPSCC. Although the HPV positivity is associated with increased radio-sensitivity, the underlying mechanisms are not yet fully understood. This review summarizes the current knowledge on the effects of HPV infection and its carcinogenesis on the radiosensitivity of OPSCC, from the molecular to histologic level, providing a comprehensive insight of this special tumor entity.
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Affiliation(s)
- Changxing Liu
- USC Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, Keck Medicine of USC, University of Southern California, Los Angeles, CA 90033 USA
| | - Daljit Mann
- Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
| | - Uttam K. Sinha
- USC Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, Keck Medicine of USC, University of Southern California, Los Angeles, CA 90033 USA
| | - Niels C. Kokot
- USC Tina and Rick Caruso Department of Otolaryngology-Head and Neck Surgery, Keck Medicine of USC, University of Southern California, Los Angeles, CA 90033 USA
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126
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Association between radiation-induced cell death and clinically relevant radioresistance. Histochem Cell Biol 2018; 150:649-659. [DOI: 10.1007/s00418-018-1728-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2018] [Indexed: 02/06/2023]
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127
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Buontempo F, Orsini E, Zironi I, Isolan L, Cappellini A, Rapino S, Tartari A, Mostacci D, Cucchi G, Martelli AM, Sumini M, Castellani G. Enhancing radiosensitivity of melanoma cells through very high dose rate pulses released by a plasma focus device. PLoS One 2018; 13:e0199312. [PMID: 29958291 PMCID: PMC6025851 DOI: 10.1371/journal.pone.0199312] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 06/05/2018] [Indexed: 12/19/2022] Open
Abstract
Radiation therapy is a useful and standard tumor treatment strategy. Despite recent advances in delivery of ionizing radiation, survival rates for some cancer patients are still low because of recurrence and radioresistance. This is why many novel approaches have been explored to improve radiotherapy outcome. Some strategies are focused on enhancement of accuracy in ionizing radiation delivery and on the generation of greater radiation beams, for example with a higher dose rate. In the present study we proposed an in vitro research of the biological effects of very high dose rate beam on SK-Mel28 and A375, two radioresistant human melanoma cell lines. The beam was delivered by a pulsed plasma device, a "Mather type" Plasma Focus for medical applications. We hypothesized that this pulsed X-rays generator is significantly more effective to impair melanoma cells survival compared to conventional X-ray tube. Very high dose rate treatments were able to reduce clonogenic efficiency of SK-Mel28 and A375 more than the X-ray tube and to induce a greater, less easy-to-repair DNA double-strand breaks. Very little is known about biological consequences of such dose rate. Our characterization is preliminary but is the first step toward future clinical considerations.
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Affiliation(s)
- Francesca Buontempo
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Ester Orsini
- University of Bologna, Department of Biomedical and Neuromotor Sciences, Bologna, Italy
| | - Isabella Zironi
- University of Bologna, Department of Physics and Astronomy, Bologna, Italy
- University of Bologna, Department of Chemistry “G. Ciamician”, Bologna, Italy
- Interdepartmental Centre “L. Galvani” (CIG) for integrated studies of bioinformatics, biophysics and biocomplexity, Bologna, Italy
| | - Lorenzo Isolan
- European Institute of Oncology and Monzino Cardiac Center Foundation (IEO-CCM), Milano, Italy
- University of Bologna, Department of Industrial Engineering, Bologna, Italy
| | - Alessandra Cappellini
- University of Cassino and Southern Lazio, Department of Human Social and Health Sciences, Cassino, Italy
| | - Stefania Rapino
- Interdepartmental Centre “L. Galvani” (CIG) for integrated studies of bioinformatics, biophysics and biocomplexity, Bologna, Italy
- National Institute for Nuclear Physics (INFN), Bologna, Italy
| | - Agostino Tartari
- European Institute of Oncology and Monzino Cardiac Center Foundation (IEO-CCM), Milano, Italy
| | - Domiziano Mostacci
- European Institute of Oncology and Monzino Cardiac Center Foundation (IEO-CCM), Milano, Italy
| | - Giorgio Cucchi
- European Institute of Oncology and Monzino Cardiac Center Foundation (IEO-CCM), Milano, Italy
| | | | - Marco Sumini
- University of Bologna, Department of Chemistry “G. Ciamician”, Bologna, Italy
- European Institute of Oncology and Monzino Cardiac Center Foundation (IEO-CCM), Milano, Italy
| | - Gastone Castellani
- University of Bologna, Department of Physics and Astronomy, Bologna, Italy
- University of Bologna, Department of Chemistry “G. Ciamician”, Bologna, Italy
- Interdepartmental Centre “L. Galvani” (CIG) for integrated studies of bioinformatics, biophysics and biocomplexity, Bologna, Italy
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Zeng D, Deng S, Sang C, Zhao J, Chen T. Rational Design of Cancer-Targeted Selenadiazole Derivative as Efficient Radiosensitizer for Precise Cancer Therapy. Bioconjug Chem 2018; 29:2039-2049. [PMID: 29771500 DOI: 10.1021/acs.bioconjchem.8b00247] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Delong Zeng
- The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Shulin Deng
- The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Chengcheng Sang
- The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Jianfu Zhao
- The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Tianfeng Chen
- The First Affiliated Hospital, and Department of Chemistry, Jinan University, Guangzhou 510632, China
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Spagnoletti G, Li Bergolis V, Piscazzi A, Giannelli F, Condelli V, Sisinni L, Bove G, Storto G, Landriscina M. Cyclin-dependent kinase 1 targeting improves sensitivity to radiation in BRAF V600E colorectal carcinoma cells. Tumour Biol 2018; 40:1010428318770957. [PMID: 29663854 DOI: 10.1177/1010428318770957] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Preoperative chemoradiation is currently the standard of care in locally advanced rectal carcinoma, even though a subset of rectal tumors does not achieve major clinically meaningful responses upon neoadjuvant chemoradiation. At present, no molecular biomarkers are available to predict response to neoadjuvant chemoradiation and select resistant tumors willing more intense therapeutic strategies. Thus, BRAF mutational status was investigated for its role in favoring resistance to radiation in colorectal carcinoma cell lines and cyclin-dependent kinase 1 as a target to improve radiosensitivity in BRAF V600E colorectal tumor cells. METHODS Colony-forming assay and apoptotic rates were evaluated to compare the sensitivity of different colon carcinoma cell lines to ionizing radiation and their radiosensitivity upon exposure to BRAF and/or cyclin-dependent kinase 1 inhibitory/silencing strategies. Cyclin-dependent kinase 1 expression/subcellular distribution was studied by immunoblot analysis. RESULTS Colon carcinoma BRAF V600E HT29 cells exhibited poor response to radiation compared to BRAF wild-type COLO320 and HCT116 cells. Interestingly, neither radiosensitizing doses of 5-fluoruracil nor BRAF inhibition/silencing significantly improved radiosensitivity in HT29 cells. Of note, poor response to radiation correlated with upregulation/relocation of cyclin-dependent kinase 1 in mitochondria. Consistently, cyclin-dependent kinase 1 inhibition/silencing as well as its targeting, through inhibition of HSP90 quality control pathway, significantly inhibited the clonogenic ability and increased apoptotic rates in HT29 cells upon exposure to radiation. CONCLUSION These data suggest that BRAF V600E colorectal carcinoma cells are poorly responsive to radiation, and cyclin-dependent kinase 1 represents a target to improve radiosensitivity in BRAF V600E colorectal tumor cells.
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Affiliation(s)
- Girolamo Spagnoletti
- 1 Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.,2 Radiotherapy Unit, Ospedali Riuniti, Foggia, Italy
| | - Valeria Li Bergolis
- 1 Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Annamaria Piscazzi
- 1 Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Francesca Giannelli
- 1 Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - Valentina Condelli
- 3 Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, Rionero in Vulture, Pz, Italy
| | - Lorenza Sisinni
- 3 Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, Rionero in Vulture, Pz, Italy
| | - Giuseppe Bove
- 2 Radiotherapy Unit, Ospedali Riuniti, Foggia, Italy
| | - Giovanni Storto
- 4 Nuclear Medicine Unit, IRCCS, Referral Cancer Center of Basilicata, Rionero in Vulture, Pz, Italy
| | - Matteo Landriscina
- 1 Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.,3 Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, Rionero in Vulture, Pz, Italy
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130
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Radiosensitization by Marine Sponge Agelas sp. Extracts in Hepatocellular Carcinoma Cells with Autophagy Induction. Sci Rep 2018; 8:6317. [PMID: 29679028 PMCID: PMC5910397 DOI: 10.1038/s41598-018-24745-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/10/2018] [Indexed: 12/15/2022] Open
Abstract
Although radiation therapy is an effective treatment modality in many cancers, there is an urgent need to develop therapeutic drugs capable of overcoming radioresistance or minimizing normal tissue toxicity. A wide variety of marine-derived bioactive compounds have been screened for anti-cancer drug discovery, but little is known regarding radiation therapy applications. In this study, six different extracts of marine sponges collected from the Micronesian sea were screened for anti-cancer and radiosensitizing activity. Two extracts derived from Agelas sponges collected off the coast of Kosrae and Chuuk, the Federated States of Micronesia significantly decreased clonogenic survival of hepatocellular carcinoma (HCC) cells after exposure to ionizing radiation (IR). The Agelas extracts augmented IR-induced apoptosis and accumulation of reactive oxygen species (ROS). Endoplasmic reticulum (ER) stress was increased via unfolded protein response stimulation, which induced autophagy. N-acetylcysteine, a ROS scavenger, diminished ER stress and autophagy induction effects. This result indicated that Agelas extracts may sensitize HCC cells to IR via ROS overproduction in vitro. Our findings suggest that the Agelas sp. may have potential utility in radiosensitizer development.
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131
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Zhang X, Wang X, Xu R, Ji J, Xu Y, Han M, Wei Y, Huang B, Chen A, Zhang Q, Li W, Wang J, Li X, Qiu C. YM155 decreases radiation-induced invasion and reverses epithelial-mesenchymal transition by targeting STAT3 in glioblastoma. J Transl Med 2018; 16:79. [PMID: 29571296 PMCID: PMC5865331 DOI: 10.1186/s12967-018-1451-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/15/2018] [Indexed: 01/09/2023] Open
Abstract
Background Radiotherapy constitutes a standard arm of therapy in the multimodal treatment of patients with glioblastoma (GBM). Ironically, studies have recently revealed that radiation can augment malignant progression, by promoting migration and invasion, which make the disease especially difficult to cure. Here, we investigated the anticancer effects of YM155, a purported radiosensitizer, in GBM cell lines. Methods GBM cell lines U251 and U87 were treated with YM155 to assess cytotoxicity and activity of the molecule in vitro. Nude mice were implanted with cells to generate orthotopic xenografts for in vivo studies. Response of cells to treatment was examined using cell viability, immunofluorescence, wound healing, and the Transwell invasion assay. Molecules potentially mediating response were examined through western blot analysis, phospho-kinase arrays, and qPCR. Cells were transfected with siRNA knockdown and gene expression constructs to identify molecular mediators of response. Results YM155 reduced viability of U251 and U87 cells and enhanced radiosensitivity through inhibition of homologous recombination. Besides, YM155 decreased invasion caused by radiation and led to expression changes in molecular markers associated with EMT. STAT3 was one of 10 molecules identified on a phosphokinase array exhibiting significant change in phosphorylation under YM155 treatment. Transfection with STAT3 siRNAs or expression constructs demonstrated that EMT changes were achieved by inhibiting the phosphorylation of STAT3 and were survivin-independent. Finally, combining YM155 and radiation in orthotopic xenografts reduced growth and prolonged overall survival of animals. Conclusions YM155 decreased radiation-induced invasion in GBM cell lines in vitro and in vivo through inhibition of STAT3. Electronic supplementary material The online version of this article (10.1186/s12967-018-1451-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Xuehai Wang
- Department of Otolaryngology, Weihai Municipal Hospital, Weihai, 264200, Shandong, People's Republic of China
| | - Ran Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Jianxiong Ji
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Yangyang Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Mingzhi Han
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Yuzhen Wei
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China.,Department of Neurosurgery, Jining No. 1, People's Hospital, Jining, 272011, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Anjing Chen
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Qing Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Wenjie Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China.,Department of Biomedicine, University of Bergen, 5009, Bergen, Norway
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Chen Qiu
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, 250012, People's Republic of China.
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Hematulin A, Meethang S, Utapom K, Wongkham S, Sagan D. Etoposide radiosensitizes p53-defective cholangiocarcinoma cell lines independent of their G 2 checkpoint efficacies. Oncol Lett 2018. [PMID: 29541168 DOI: 10.3892/ol.2018.7754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Radiotherapy has been accounted as the most comprehensive cancer treatment modality over the past few decades. However, failure of this treatment modality occurs in several malignancies due to the resistance of cancer cells to radiation. It was previously reported by the present authors that defective cell cycle checkpoints could be used as biomarkers for predicting the responsiveness to radiation in individual patients with cholangiocarcinoma (CCA). However, identification of functional defective cell cycle checkpoints from cells from a patient's tissues is cumbersome and not applicable in the clinic. The present study evaluated the radiosensitization potential of etoposide in p53-defective CCA KKU-M055 and KKU-M214 cell lines. Treatment with etoposide enhanced the responsiveness of two p53-defective CCA cell lines to radiation independent of G2 checkpoint function. In addition, etoposide treatment increased radiation-induced cell death without altering the dominant mode of cell death of the two cell lines. These findings indicate that etoposide could be used as a radiation sensitizer for p53-defective tumors, independent of the function of G2 checkpoint.
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Affiliation(s)
- Arunee Hematulin
- Radiobiology Research Laboratory, Department of Radiation Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Sutiwan Meethang
- Radiobiology Research Laboratory, Department of Radiation Technology, Faculty of Allied Health Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Kitsana Utapom
- Radiation Oncology Unit, Department of Radiology, Faculty of Medicine, Naresuan University, Phitsanulok 65000, Thailand
| | - Sopit Wongkham
- Department of Biochemistry, Liver Fluke and Cholangiocarcinoma Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Daniel Sagan
- Independent Researcher, Miesbach, D-83714 Bavaria, Germany
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Son B, Lee S, Youn H, Kim E, Kim W, Youn B. The role of tumor microenvironment in therapeutic resistance. Oncotarget 2018; 8:3933-3945. [PMID: 27965469 PMCID: PMC5354804 DOI: 10.18632/oncotarget.13907] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 12/01/2016] [Indexed: 12/20/2022] Open
Abstract
Cancer cells undergo unlimited progression and survival owing to activation of oncogenes. However, support of the tumor microenvironment is essential to the formation of clinically relevant tumors. Recent evidence indicates that the tumor microenvironment is a critical regulator of immune escape, progression, and distant metastasis of cancer. Moreover, the tumor microenvironment is known to be involved in acquired resistance of tumors to various therapies. Despite significant advances in chemotherapy and radiotherapy, occurrence of therapeutic resistance leads to reduced efficacy. This review highlights myeloid cells, cancer-associated fibroblasts, and mesenchymal stem cells consisting of the tumor microenvironment, as well as the relevant signaling pathways that eventually render cancer cells to be therapeutically resistant.
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Affiliation(s)
- Beomseok Son
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Sungmin Lee
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - HyeSook Youn
- Department of Integrative Bioscience and Biotechnology, Sejong University, Seoul 05006, Republic of Korea
| | - EunGi Kim
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea
| | - Wanyeon Kim
- Integrative Graduate Program of Ship and Offshore Plant Technology for Ocean Energy Resource, Pusan National University, Busan 46241, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
| | - BuHyun Youn
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea.,Department of Biological Sciences, Pusan National University, Busan 46241, Republic of Korea
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Rather RA, Bhagat M. Cancer Chemoprevention and Piperine: Molecular Mechanisms and Therapeutic Opportunities. Front Cell Dev Biol 2018; 6:10. [PMID: 29497610 PMCID: PMC5818432 DOI: 10.3389/fcell.2018.00010] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/24/2018] [Indexed: 12/30/2022] Open
Abstract
Cancer is a genetic disease characterized by unregulated growth and dissemination of malignantly transformed neoplastic cells. The process of cancer development goes through several stages of biochemical and genetic alterations in a target cell. Several dietary alkaloids have been found to inhibit the molecular events and signaling pathways associated with various stages of cancer development and therefore are useful in cancer chemoprevention. Cancer chemoprevention has long been recognized as an important prophylactic strategy to reduce the burden of cancer on health care system. Cancer chemoprevention assumes the use of one or more pharmacologically active agents to block, suppress, prevent, or reverse the development of invasive cancer. Piperine is an active alkaloid with an excellent spectrum of therapeutic activities such as anti-oxidant, anti-inflammatory, immunomodulatory, anti-asthmatic, anti-convulsant, anti-mutagenic, antimycobacterial, anti-amoebic, and anti-cancer activities. In this article, we made an attempt to sum up the current knowledge on piperine that supports the chemopreventive potential of this dietary phytochemical. Many mechanisms have been purported to understand the chemopreventive action of piperine. Piperine has been reported to inhibit the proliferation and survival of many types of cancer cells through its influence on activation of apoptotic signaling and inhibition of cell cycle progression. Piperine is known to affect cancer cells in variety of other ways such as influencing the redox homeostasis, inhibiting cancer stem cell (CSC) self-renewal and modulation of ER stress and autophagy. Piperine can modify activity of many enzymes and transcription factors to inhibit invasion, metastasis, and angiogenesis. Piperine is a potent inhibitor of p-glycoprotein (P-gp) and has a significant effect on the drug metabolizing enzyme (DME) system. Because of its inhibitory influence on P-gp activity, piperine can reverse multidrug resistance (MDR) in cancer cells and acts as bioavailability enhancer for many chemotherapeutic agents. In this article, we emphasize the potential of piperine as a promising cancer chemopreventive agent and the knowledge we collected in this review can be applied in the strategic design of future researches particularly human intervention trials with piperine.
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135
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Iijima M, Gombodorj N, Tachibana Y, Tachibana K, Yokobori T, Honma K, Nakano T, Asao T, Kuwahara R, Aoyama K, Yasuda H, Kelly M, Kuwano H, Yamanouchi D. Development of single nanometer-sized ultrafine oxygen bubbles to overcome the hypoxia-induced resistance to radiation therapy via the suppression of hypoxia-inducible factor‑1α. Int J Oncol 2018; 52:679-686. [PMID: 29393397 PMCID: PMC5807044 DOI: 10.3892/ijo.2018.4248] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 01/12/2018] [Indexed: 02/06/2023] Open
Abstract
Radiation therapy can result in severe side-effects, including the development of radiation resistance. The aim of this study was to validate the use of oxygen nanobubble water to overcome resistance to radiation in cancer cell lines via the suppression of the hypoxia-inducible factor 1-α (HIF-1α) subunit. Oxygen nanobubble water was created using a newly developed method to produce nanobubbles in the single-nanometer range with the ΣPM-5 device. The size and concentration of the oxygen nanobubbles in the water was examined using a cryo-transmission electron microscope. The nanobubble size was ranged from 2 to 3 nm, and the concentration of the nanobubbles was calculated at 2×1018 particles/ml. Cell viability and HIF-1α levels were evaluated in EBC-1 lung cancer and MDA-MB-231 breast cancer cells treated with or without the nanobubble water and radiation under normoxic and hypoxic conditions in vitro. The cancer cells grown in oxygen nanobubble-containing media exhibited a clear suppression of hypoxia-induced HIF-1α expression compared to the cells grown in media made with distilled water. Under hypoxic conditions, the EBC-1 and MDA-MB231 cells displayed resistance to radiation compared to the cells cultured under normoxic cells. The use of oxygen nanobubble medium significantly suppressed the hypoxia-induced resistance to radiation compared to the use of normal medium at 2, 6, 10 and 14 Gy doses. Importantly, the use of nanobubble media did not affect the viability and radiation sensitivity of the cancer cell lines, or the non-cancerous cell line, BEAS-2B, under normoxic conditions. This newly created single-nanometer range oxygen nanobubble water, without any additives, may thus prove to be a promising agent which may be used to overcome the hypoxia-induced resistance of cancer cells to radiation via the suppression of HIF-1α.
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Affiliation(s)
- Misaki Iijima
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Navchaa Gombodorj
- Department of Molecular Pharmacology and Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | | | | | - Takehiko Yokobori
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Kyoko Honma
- Sigma Technology Inc., Hitachinaka, Ibaraki 312-0053, Japan
| | - Takashi Nakano
- Department of Molecular Pharmacology and Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Takayuki Asao
- Big Data Center for Integrative Analysis, Gunma University Initiative for Advance Research (GIAR), Maebashi, Gunma 371-8511, Japan
| | - Ryusuke Kuwahara
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Kazuhiro Aoyama
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Hidehiro Yasuda
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Matthew Kelly
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Hiroyuki Kuwano
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Dai Yamanouchi
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
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Srivastava P, Sarma A, Chaturvedi CM. Targeting DNA repair with PNKP inhibition sensitizes radioresistant prostate cancer cells to high LET radiation. PLoS One 2018; 13:e0190516. [PMID: 29320576 PMCID: PMC5762163 DOI: 10.1371/journal.pone.0190516] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/15/2017] [Indexed: 12/19/2022] Open
Abstract
High linear energy transfer (LET) radiation or heavy ion such as carbon ion radiation is used as a method for advanced radiotherapy in the treatment of cancer. It has many advantages over the conventional photon based radiotherapy using Co-60 gamma or high energy X-rays from a Linear Accelerator. However, charged particle therapy is very costly. One way to reduce the cost as well as irradiation effects on normal cells is to reduce the dose of radiation by enhancing the radiation sensitivity through the use of a radiomodulator. PNKP (polynucleotide kinase/phosphatase) is an enzyme which plays important role in the non-homologous end joining (NHEJ) DNA repair pathway. It is expected that inhibition of PNKP activity may enhance the efficacy of the charged particle irradiation in the radioresistant prostate cancer cell line PC-3. To test this hypothesis, we investigated cellular radiosensitivity by clonogenic cell survival assay in PC-3 cells.12Carbon ion beam of62 MeVenergy (equivalent 5.16 MeV/nucleon) and with an entrance LET of 287 kev/μm was used for the present study. Apoptotic parameters such as nuclear fragmentation and caspase-3 activity were measured by DAPI staining, nuclear ladder assay and colorimetric caspase-3method. Cell cycle arrest was determined by FACS analysis. Cell death was enhanced when carbon ion irradiation is combined with PNKPi (PNKP inhibitor) to treat cells as compared to that seen for PNKPi untreated cells. A low concentration (10μM) of PNKPi effectively radiosensitized the PC-3 cells in terms of reduction of dose in achieving the same survival fraction. PC-3 cells underwent significant apoptosis and cell cycle arrest too was enhanced at G2/M phase when carbon ion irradiation was combined with PNKPi treatment. Our findings suggest that combined treatment of carbon ion irradiation and PNKP inhibition could enhance cellular radiosensitivity in a radioresistant prostate cancer cell line PC-3. The synergistic effect of PNKPi and carbon ion irradiation could be used as a promising method for carbon-ion therapy in radioresistant cells.
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Affiliation(s)
- Pallavi Srivastava
- Department of Zoology, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Asitikantha Sarma
- Radiation Biology Laboratory, Inter University Accelerator Centre, New Delhi, India
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Rizeq B, Zakaria Z, Ouhtit A. Towards understanding the mechanisms of actions of carcinoembryonic antigen-related cell adhesion molecule 6 in cancer progression. Cancer Sci 2018; 109:33-42. [PMID: 29110374 PMCID: PMC5765285 DOI: 10.1111/cas.13437] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 10/31/2017] [Accepted: 11/01/2017] [Indexed: 12/21/2022] Open
Abstract
Human carcinoembryonic antigen (CEA) is the prototypic member of a family of highly related cell surface glycoproteins that includes carcinoembryonic antigen‐related cell adhesion molecule 6 (CEACAM6) and others. CEACAM6 (formerly NCA), which belongs to the immunoglobulin superfamily, is a cell adhesion protein of the CEA family. It is normally expressed on the epithelial surfaces and on the surface of myeloid cells (CD66c). CEACAM6 is a multi‐functional glycoprotein that mediates homotypic binding with other CEA family members and heterotypic binding with integrin receptors. It functions by organizing tissue architecture and regulating different signal transduction, while aberrant expression leads to the development of human malignancies. It was first discovered in proliferating cells of adenomas and hyperplastic polyps in comparison to benign colonic tissue when overexpressed on the surface of various cell types in model systems. CEACAM6 functions as a pan‐inhibitor of cell differentiation and cell polarization, and it also causes distortion of tissue architecture. Moreover, overexpression of CEACAM6 modulates cancer progression through aberrant cell differentiation, anti‐apoptosis, cell growth and resistance to therapeutic agents. In addition, CEACAM6 overexpression in multiple malignancies promotes cell invasion and metastasis, thereby representing an acquired advantage of tumor cells directly responsible for an invasive phenotype. This review focuses on the findings supporting the mechanisms of actions linking the oncogenic potential of CEACAM6 to the onset of cancer progression and pathogenesis, especially in breast cancer, and to validating CEACAM6 as a target to pave the way towards the design of efficient therapeutic strategies against breast cancer.
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Affiliation(s)
- Balsam Rizeq
- Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
| | - Zain Zakaria
- Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
| | - Allal Ouhtit
- Department of Biological and Environmental Sciences, College of Arts and Science, Qatar University, Doha, Qatar
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138
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Luo J, Pi G, Xiao H, Ye Y, Li Q, Zhao L, Huang H, Luo H, Zhang Q, Wang D, Wang G. Torin2 enhances the radiosensitivity of MCF‑7 breast cancer cells by downregulating the mTOR signaling pathway and ATM phosphorylation. Mol Med Rep 2017; 17:366-373. [PMID: 29115478 DOI: 10.3892/mmr.2017.7848] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 08/23/2017] [Indexed: 11/06/2022] Open
Abstract
Radiotherapy has an important role in the comprehensive treatment of breast cancer. However, the clinical outcome of adjuvant radiotherapy may be limited due to intrinsic radioresistance, it is necessary to explore efficient radiosensitization methods that improve the clinical outcome of patients undergoing radiotherapy. The present study aimed to investigate whether the novel mechanistic target of rapamycin (mTOR) inhibitor Torin2 enhances the radiosensitivity of MCF‑7 breast cancer cells. A Cell Counting Kit‑8 (CCK‑8) assay was performed to measure the effect of Torin2 on cell proliferation, while clonogenic assays were employed to determine the effect of Torin2 in combination with radiation on the proliferation of MCF‑7 cells. The effect of Torin2 and/or radiation on the cell cycle was analyzed using flow cytometry. Furthermore, the protein expression of components of the phosphatidylinositol 3‑kinase/Akt/mTOR pathway, and the expression of proteins involved in DNA damage repair, was measured by western blot analysis. The results demonstrated that Torin2 exhibited a higher potency in MCF‑7 cells, while MDA‑MB‑231 cells were less sensitive to Torin2. Compared with irradiation alone, pretreatment with 20 nM Torin2 followed by irradiation resulted in an increased level of γ‑H2A histone family member X. Radiation induced the activation of the Akt/mTOR signaling pathway and upregulated the expression of phosphorylated (p)‑Akt473 and p‑eukaryotic translation initiation factor 4E binding protein 1 (4EBP1)37/46. Notably, pretreatment with Torin2 attenuated the radiation‑induced activation of the Akt/mTOR signaling pathway. In addition, Torin2 partially blocked the repair of double‑strand breaks induced by radiation by reducing the activation of ataxia telangiectasia‑mutated, and sensitized MCF‑7 cells to radiation. In conclusion, administration of Torin2 prior to irradiation enhanced the radiotherapeutic effect on breast cancer cells in vitro, and these results may provide a foundation for the rational use of combined therapy with irradiation and Torin2 for breast cancer in clinical practice.
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Affiliation(s)
- Jia Luo
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Guocheng Pi
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - He Xiao
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Yunfei Ye
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Qing Li
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Lianhua Zhao
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Huan Huang
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Hong Luo
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Qin Zhang
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Dong Wang
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
| | - Ge Wang
- Cancer Center of Daping Hospital and The Research Institute of Surgery, The Third Military Medical University, Chongqing 400042, P.R. China
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139
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Hodgkinson N, Kruger CA, Abrahamse H. Targeted photodynamic therapy as potential treatment modality for the eradication of colon cancer and colon cancer stem cells. Tumour Biol 2017; 39:1010428317734691. [PMID: 28990490 DOI: 10.1177/1010428317734691] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Colorectal cancer is commonly treated by tumour resection, as chemotherapy and radiation have proven to be less effective, especially if the tumour has metastasized. Resistance to therapies occurs in almost all patients with colorectal cancer, especially in those with metastatic tumours. Cancer stem cells have the ability to self-renew, and their slow rate of cycling enhances resistance to treatment and increases the likelihood of tumour recurrence. Most metastatic tumours are unable to be surgically removed, thus creating a need for treatment modalities that target cancers directly and destroy cancer stem cells. Photodynamic therapy involves a photosensitizer that when exposed to a light source of a particular wavelength becomes excited and produces a form of oxygen that kills cancer cells. Photodynamic therapy is currently being investigated as a treatment modality for colorectal cancer, and new studies are exploring enhancing photodynamic therapy efficacy with the aid of drug carriers and immune conjugates. These modifications could prove effective in targeting cancer stem cells that are thought to be resistant to photodynamic therapy. In order for photodynamic therapy to be an effective treatment in colorectal cancer, it requires treatment of both primary tumours and the metastatic secondary disease that is caused by colon cancer stem cells. This review focuses on current photodynamic therapy treatments available for colorectal cancer and highlights proposed actively targeted photosynthetic drug uptake mechanisms specifically mediated towards colon cancer stem cells, as well as identify the gaps in research which need to be investigated in order to develop a combinative targeted photodynamic therapy regime that can effectively control colorectal cancer primary and metastatic tumour growth by eliminating colon cancer stem cells.
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Affiliation(s)
- Natasha Hodgkinson
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, South Africa
| | - Cherie A Kruger
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Doornfontein, South Africa
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140
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Zhang X, Xu R, Zhang C, Xu Y, Han M, Huang B, Chen A, Qiu C, Thorsen F, Prestegarden L, Bjerkvig R, Wang J, Li X. Trifluoperazine, a novel autophagy inhibitor, increases radiosensitivity in glioblastoma by impairing homologous recombination. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:118. [PMID: 28870216 PMCID: PMC5584019 DOI: 10.1186/s13046-017-0588-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 08/28/2017] [Indexed: 01/16/2023]
Abstract
BACKGROUND Resistance to adjuvant radiotherapy is a major cause of treatment failure in patients with glioblastoma (GBM). Autophagy inhibitors have been shown to enhance the efficacy of radiotherapy for certain solid tumors. However, current inhibitors do not penetrate the blood-brain-barrier (BBB). Here, we assessed the radiosensitivity effects of the antipsychotic drug trifluoperazine (TFP) on GBM in vitro and in vivo. METHODS U251 and U87 GBM cell lines as well as GBM cells from a primary human biopsy (P3), were used in vitro and in vivo to evaluate the efficacy of TFP treatment. Viability and cytotoxicity was evaluated by CCK-8 and clonogenic formation assays. Molecular studies using immunohistochemistry, western blots, immunofluorescence and qPCR were used to gain mechanistic insight into the biological activity of TFP. Preclinical therapeutic efficacy was evaluated in orthotopic xenograft mouse models. RESULTS IC50 values of U251, U87 and P3 cells treated with TFP were 16, 15 and 15.5 μM, respectively. TFP increased the expression of LC3B-II and p62, indicating a potential disruption of autophagy flux. These results were further substantiated by a decreased Lysotracker Red uptake, indicating impaired acidification of the lysosomes. We show that TFP and radiation had an additive effect when combined. This effect was in part due to impaired TFP-induced homologous recombination. Mechanistically we show that down-regulation of cathepsin L might explain the radiosensitivity effect of TFP. Finally, combining TFP and radiation resulted in a significant antitumor effect in orthotopic GBM xenograft models. CONCLUSIONS This study provides a strong rationale for further clinical studies exploring the combination therapy of TFP and radiation to treat GBM patients.
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Affiliation(s)
- Xin Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Ran Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Chao Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Yangyang Xu
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Mingzhi Han
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Anjing Chen
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China
| | - Chen Qiu
- Department of Radiation Oncology, Qilu Hospital of Shandong University, Jinan, 250012, People's Republic of China
| | - Frits Thorsen
- Kristian Gerhard Jebsen Brain Tumour Research Centre, Department of Biomedicine, University of Bergen, 5009, Bergen, Norway.,The Molecular Imaging Center, Department of Biomedicine, University of Bergen, 5009, Bergen, Norway
| | - Lars Prestegarden
- Kristian Gerhard Jebsen Brain Tumour Research Centre, Department of Biomedicine, University of Bergen, 5009, Bergen, Norway.,Department of Dermatology, Haukeland University Hospital, 5009, Bergen, Norway
| | - Rolf Bjerkvig
- Kristian Gerhard Jebsen Brain Tumour Research Centre, Department of Biomedicine, University of Bergen, 5009, Bergen, Norway.,Department of Oncology, Luxembourg Institute of Health, L-1526, Strassen, Luxembourg
| | - Jian Wang
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China. .,Kristian Gerhard Jebsen Brain Tumour Research Centre, Department of Biomedicine, University of Bergen, 5009, Bergen, Norway.
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, Jinan, 250012, People's Republic of China.
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141
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Jin Y, Hong Y, Park CY, Hong Y. Molecular Interactions of Autophagy with the Immune System and Cancer. Int J Mol Sci 2017; 18:ijms18081694. [PMID: 28771183 PMCID: PMC5578084 DOI: 10.3390/ijms18081694] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/28/2017] [Accepted: 07/29/2017] [Indexed: 12/19/2022] Open
Abstract
Autophagy is a highly conserved catabolic mechanism that mediates the degradation of damaged cellular components by inducing their fusion with lysosomes. This process provides cells with an alternative source of energy for the synthesis of new proteins and the maintenance of metabolic homeostasis in stressful environments. Autophagy protects against cancer by mediating both innate and adaptive immune responses. Innate immune receptors and lymphocytes (T and B) are modulated by autophagy, which represent innate and adaptive immune responses, respectively. Numerous studies have demonstrated beneficial roles for autophagy induction as well as its suppression of cancer cells. Autophagy may induce either survival or death depending on the cell/tissue type. Radiation therapy is commonly used to treat cancer by inducing autophagy in human cancer cell lines. Additionally, melatonin appears to affect cancer cell death by regulating programmed cell death. In this review, we summarize the current understanding of autophagy and its regulation in cancer.
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Affiliation(s)
- Yunho Jin
- Department of Rehabilitation Science, Graduate School of Inje University, Gimhae 50834, Korea.
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae 50834, Korea.
- Biohealth Products Research Center (BPRC), Inje University, Gimhae 50834, Korea.
| | - Yunkyung Hong
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae 50834, Korea.
- Biohealth Products Research Center (BPRC), Inje University, Gimhae 50834, Korea.
- Department of Physical Therapy, College of Biomedical Science & Engineering, Inje University, Gimhae 50834, Korea.
| | - Chan Young Park
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea.
| | - Yonggeun Hong
- Department of Rehabilitation Science, Graduate School of Inje University, Gimhae 50834, Korea.
- Ubiquitous Healthcare & Anti-Aging Research Center (u-HARC), Inje University, Gimhae 50834, Korea.
- Biohealth Products Research Center (BPRC), Inje University, Gimhae 50834, Korea.
- Department of Physical Therapy, College of Biomedical Science & Engineering, Inje University, Gimhae 50834, Korea.
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142
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Hu J, Li H, Luo X, Li Y, Bode A, Cao Y. The role of oxidative stress in EBV lytic reactivation, radioresistance and the potential preventive and therapeutic implications. Int J Cancer 2017; 141:1722-1729. [PMID: 28571118 DOI: 10.1002/ijc.30816] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 05/26/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Jianmin Hu
- Key Laboratory of Cancer Carcinogenesis and Invasion, Chinese Ministry of Education; Xiangya Hospital, Central South University; Changsha China
- Cancer Research Institute, Xiangya School of Medicine, Central South University; Changsha China
- Key Laboratory of Carcinogenesis; Chinese Ministry of Health; Changsha China
| | - Hongde Li
- Key Laboratory of Cancer Carcinogenesis and Invasion, Chinese Ministry of Education; Xiangya Hospital, Central South University; Changsha China
- Cancer Research Institute, Xiangya School of Medicine, Central South University; Changsha China
- Key Laboratory of Carcinogenesis; Chinese Ministry of Health; Changsha China
| | - Xiangjian Luo
- Key Laboratory of Cancer Carcinogenesis and Invasion, Chinese Ministry of Education; Xiangya Hospital, Central South University; Changsha China
- Cancer Research Institute, Xiangya School of Medicine, Central South University; Changsha China
- Key Laboratory of Carcinogenesis; Chinese Ministry of Health; Changsha China
| | - Yueshuo Li
- Key Laboratory of Cancer Carcinogenesis and Invasion, Chinese Ministry of Education; Xiangya Hospital, Central South University; Changsha China
- Cancer Research Institute, Xiangya School of Medicine, Central South University; Changsha China
- Key Laboratory of Carcinogenesis; Chinese Ministry of Health; Changsha China
| | - Ann Bode
- The Hormel Institute, University of Minnesota; Austin MN 55912
| | - Ya Cao
- Key Laboratory of Cancer Carcinogenesis and Invasion, Chinese Ministry of Education; Xiangya Hospital, Central South University; Changsha China
- Cancer Research Institute, Xiangya School of Medicine, Central South University; Changsha China
- Key Laboratory of Carcinogenesis; Chinese Ministry of Health; Changsha China
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143
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Chen X, Ma N, Zhou Z, Wang Z, Hu Q, Luo J, Mei X, Yang Z, Zhang L, Wang X, Feng Y, Yu X, Ma J, Guo X. Estrogen Receptor Mediates the Radiosensitivity of Triple-Negative Breast Cancer Cells. Med Sci Monit 2017; 23:2674-2683. [PMID: 28570501 PMCID: PMC5466376 DOI: 10.12659/msm.904810] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background This study aimed to evaluate differences in the radiosensitivities of triple-negative breast cancer (TNBC) and luminal-type breast cancer cells and to investigate the effects of estrogen receptor (ER) expression on the biological behaviors of the cells. Material/Methods Colony-forming assays were performed to detect differences in radiosensitivities in breast cancer cell lines. Gene transfection technology was used to introduce the expression of ERα in TNBC cells to compare the difference in radiosensitivity between the TNBC cells and ERα transfected cells. CCK-8 assays were used to observe changes in the proliferation of TNBC cells after ERα transfection. Immunofluorescence was used to detect the number of γH2AX foci in nuclei. Flow cytometry was used to detect changes in cell cycle distribution and apoptosis. Western blotting was used to detect changes in autophagy-associated proteins. Results The radioresistance of the TNBC cell line MDA-MB-231 (231 cells) was greater than that of ERα-positive luminal-type breast cancer cell line MCF-7. Moreover, 231 cell proliferation and radioresistance decreased after ERα transfection. Interestingly, ERα-transfected 231 cells showed increased double-stranded breaks and delayed repair compared with 231 cells, and ERα-transfected 231 cells showed increased G2/M phase arrest and apoptosis after irradiation compared with those in 231 cells. ERα transfection in 231 cells reduced autophagy-related protein expression, suggesting that autophagy activity decreased in 231 ER-positive cells after irradiation. Conclusions TNBC cells were more resistant to radiation than luminal-type breast cancer cells. ERα expression may have major roles in modulating breast cancer cell radiosensitivity.
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Affiliation(s)
- Xingxing Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Ningyi Ma
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Radiation Oncology, Shanghai Proton and Heavy Ion Center, Shanghai, China (mainland)
| | - Zhirui Zhou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Ziliang Wang
- Cancer Institutions, Fudan University Shanghai Cancer Center, Shanghai, China (mainland)
| | - Qunchao Hu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Jurui Luo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Xin Mei
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Zhaozhi Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Li Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Xiaofang Wang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Yan Feng
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Xiaoli Yu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Jinli Ma
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China (mainland)
| | - Xiaomao Guo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China (mainland).,Department of Oncology, Shanghai Medical College, Fudan University,, Shanghai, China (mainland)
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Chen X, Wang P, Guo F, Wang X, Wang J, Xu J, Yuan D, Zhang J, Shao C. Autophagy enhanced the radioresistance of non-small cell lung cancer by regulating ROS level under hypoxia condition. Int J Radiat Biol 2017; 93:764-770. [PMID: 28463025 DOI: 10.1080/09553002.2017.1325025] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE Tumor resistance towards radiation has been a big obstacle in the poor prognosis of lung cancer. It has been reported that hypoxia and autophagy partly contribute to this resistance. However, there is controversy over whether autophagy plays a positive role in cancer therapy or not. We aim to find out the specific mechanism of radiation resistance. MATERIALS AND METHODS A549 cells were treated with conditioned medium (CM) under 12 h hypoxia or normoxia before irradiation, followed by the measurement of clonogenic survival, reactive oxygen species (ROS), signal of mitochondria and autophagy flux. In some experiments, the A549 cells were respectively transfected with LC3 small interfering RNA (siRNA), or treated with Earle's Balanced Salt Solution (EBSS). RESULTS We found that hypoxia enhanced cell radioresistance by increasing the induction of autophagy. And after hypoxia stress, the number of mitochondria was reduced but the cellular ROS level was enhanced. It was significant that autophagy may enhance cell radioresistance by reducing ROS during hypoxic treatment. CONCLUSIONS We elucidated the possible mechanisms of autophagy in regulating cancer cell death or survival. These results supply a new opinion about the intrinsic factor of radioresistance of hypoxia tumors.
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Affiliation(s)
- Xiaoyan Chen
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Ping Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Fei Guo
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Xiangdong Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Juan Wang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Jinping Xu
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Dexiao Yuan
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Jianghong Zhang
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
| | - Chunlin Shao
- a Institute of Radiation Medicine , Fudan University , Shanghai , China
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145
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van de Ven AL, Tangutoori S, Baldwin P, Qiao J, Gharagouzloo C, Seitzer N, Clohessy JG, Makrigiorgos GM, Cormack R, Pandolfi PP, Sridhar S. Nanoformulation of Olaparib Amplifies PARP Inhibition and Sensitizes PTEN/TP53-Deficient Prostate Cancer to Radiation. Mol Cancer Ther 2017; 16:1279-1289. [PMID: 28500233 DOI: 10.1158/1535-7163.mct-16-0740] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 03/09/2017] [Accepted: 04/28/2017] [Indexed: 12/17/2022]
Abstract
The use of PARP inhibitors in combination with radiotherapy is a promising strategy to locally enhance DNA damage in tumors. Here we show that radiation-resistant cells and tumors derived from a Pten/Trp53-deficient mouse model of advanced prostate cancer are rendered radiation sensitive following treatment with NanoOlaparib, a lipid-based injectable nanoformulation of olaparib. This enhancement in radiosensitivity is accompanied by radiation dose-dependent changes in γ-H2AX expression and is specific to NanoOlaparib alone. In animals, twice-weekly intravenous administration of NanoOlaparib results in significant tumor growth inhibition, whereas previous studies of oral olaparib as monotherapy have shown no therapeutic efficacy. When NanoOlaparib is administered prior to radiation, a single dose of radiation is sufficient to triple the median mouse survival time compared to radiation only controls. Half of mice treated with NanoOlaparib + radiation achieved a complete response over the 13-week study duration. Using ferumoxytol as a surrogate nanoparticle, MRI studies revealed that NanoOlaparib enhances the intratumoral accumulation of systemically administered nanoparticles. NanoOlaparib-treated tumors showed up to 19-fold higher nanoparticle accumulation compared to untreated and radiation-only controls, suggesting that the in vivo efficacy of NanoOlaparib may be potentiated by its ability to enhance its own accumulation. Together, these data suggest that NanoOlaparib may be a promising new strategy for enhancing the radiosensitivity of radiation-resistant tumors lacking BRCA mutations, such as those with PTEN and TP53 deletions. Mol Cancer Ther; 16(7); 1279-89. ©2017 AACR.
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Affiliation(s)
- Anne L van de Ven
- Department of Physics, Northeastern University, Boston, Massachusetts.,Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts
| | - Shifalika Tangutoori
- Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Paige Baldwin
- Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Bioengineering, Northeastern University, Boston, Massachusetts
| | - Ju Qiao
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts
| | - Codi Gharagouzloo
- Department of Bioengineering, Northeastern University, Boston, Massachusetts
| | - Nina Seitzer
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - John G Clohessy
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - G Mike Makrigiorgos
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Robert Cormack
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Pier Paolo Pandolfi
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - Srinivas Sridhar
- Department of Physics, Northeastern University, Boston, Massachusetts. .,Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
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146
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Vasudeva V, Tenkanidiyoor YS, Radhakrishna V, Shivappa P, Lakshman SP, Fernandes R, Patali KA. Palliative effects of lutein intervention in gamma-radiation-induced cellular damages in Swiss albino mice. Indian J Pharmacol 2017; 49:26-33. [PMID: 28458419 PMCID: PMC5351234 DOI: 10.4103/0253-7613.201013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Objectives: Radiation-induced hematological, biochemical, and cytogenetic damages to the normal cells are major concerns in the field of radiotherapy. The carotenoids and their derivatives have been the source of antioxidants with wide range of medicinal applications. The objective is to evaluate the protective effects of lutein, a carotenoid, against radiation-induced cellular and tissue damages. Methods: Swiss albino mice were grouped into 5, 50, 250, and 500 mg/kg b.wt. of lutein treatment groups, a sham and vehicle control group. The groups were irradiated with a lethal dose of 10 Gy y'-radiation. The mortality was recorded for 30 days to optimize the protective dose against radiation. The mice were administered with the compound orally for 15 consecutive days and irradiated with a sublethal dose of 6Gy. The hematological changes in blood and antioxidant parameters were determined in liver, kidney homogenates, and hemolysate/serum. The hematological parameters were recorded using an automated cell counter. The antioxidants such as malondialdehyde (MDA), glutathione (GSH), superoxide dismutase, catalase, glutathione peroxidase and glutathione-S-transferase were spectrophotometrically determined. Results: The red blood cell, white blood cell count, lymphocyte count, hemoglobin, platelet levels, and hematocrit value were found to be decreased in the irradiated groups. Lutein pretreatment maintains near-normal levels of these parameters indicating resistance/recovery from the radiation-induced damages. The antioxidant levels were found to be reduced in all the irradiated groups. However, lutein pretreatment (50 mg/kg b.wt.) has increased the catalase activity of hemolysate. Lutein pretreatment has reduced the MDA levels in hemolysate, when administered at doses of 5, 250, and 500 mg/kg b.wt. in comparison to its control. Conclusion: The study demonstrates the radioprotective potential of lutein by maintaining the hematological and antioxidant homeostasis.
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Affiliation(s)
- Vidya Vasudeva
- Research Scholar, Central Research Laboratory, K S Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Yogish Somayaji Tenkanidiyoor
- Research Scholar, Central Research Laboratory, K S Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Vishakh Radhakrishna
- Research Scholar, Central Research Laboratory, K S Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Pooja Shivappa
- Research Scholar, Central Research Laboratory, K S Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Srikanth Patil Lakshman
- Department of Physiology, K S Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Ronald Fernandes
- Department of Biochemistry, Nitte Gulabi Shetty Memorial Institute of Pharmaceutical Sciences, Nitte University, Mangalore, Karnataka, India
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147
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Wang P, Yuan D, Guo F, Chen X, Zhu L, Zhang H, Wang C, Shao C. Chromatin remodeling modulates radiosensitivity of the daughter cells derived from cell population exposed to low- and high-LET irradiation. Oncotarget 2017; 8:52823-52836. [PMID: 28881774 PMCID: PMC5581073 DOI: 10.18632/oncotarget.17275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 03/28/2017] [Indexed: 12/27/2022] Open
Abstract
Radiation effects are dependent of linear energy transfer (LET), but it is still obscure whether the daughter cells (DCs) derived from irradiated population are radioresistance and much less the underlying mechanism. With the measurements of survival, proliferation and γH2AX foci, this study shows that the DCs from γ-ray irradiated cells (DCs-γ) became more radioresistant than its parent control without irradiation, but the radiosensitivity of DCs from α-particle irradiated cells (DCs-α) was not altered. After irradiation with equivalent doses of γ-rays and α-particles, the foci number of histone H3 lysine 9 dimethylation (H3K9me3) and the activity of histone deacetylase (HDAC) in DCs-γ was extensively higher than these in DCs-α and its parent control, indicating that a higher level of heterochromatin was formed in DCs-γ but not in DCs-α. Treatment of cells with SAHA (an inhibitor of HDAC) decreased the level of heterochromatin domains by inhibiting the expressions of H3K9m3 and HP-1a proteins and triggering the expression of acetylated core histone H3 (Ac-H3). When cells were treated with SAHA, the radioresistance phenotype of DCs-γ was eliminated so that the radiosensitivities of DCs-γ, DCs-α and their parent cells approached to same levels. Our current results reveal that γ-rays but not α-particles could induce chromatin remodeling and heterochromatinization which results in the occurrence of radioresistance of DCs, indicating that the combination treatment of irradiation and HDAC inhibitor could serve as a potential cancer therapy strategy, especially for the fraction radiotherapy of low-LET irradiation.
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Affiliation(s)
- Ping Wang
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Dexiao Yuan
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Fei Guo
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Xiaoyan Chen
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Lin Zhu
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Hang Zhang
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Chen Wang
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Chunlin Shao
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
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148
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Tam SY, Wu VWC, Law HKW. Influence of autophagy on the efficacy of radiotherapy. Radiat Oncol 2017; 12:57. [PMID: 28320471 PMCID: PMC5359955 DOI: 10.1186/s13014-017-0795-y] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 03/02/2017] [Indexed: 02/06/2023] Open
Abstract
Autophagy is an important catabolic process in which cells digest and recycle their own cytoplasmic contents for maintaining cellular homeostasis. Interestingly, autophagy could play both pro-death and pro-survival roles in influencing the development of cancer via various signal pathways. As radiotherapy is one of the main treatment modalities for cancer, we reviewed the effect of autophagy modulations on radiosensitivity and radiotherapy efficacy in various cancer types. The future development of autophagy modifications for improving radiotherapy efficacy and cancer prognosis will also be discussed.
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Affiliation(s)
- Shing Yau Tam
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Vincent Wing Cheung Wu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong, China
| | - Helen Ka Wai Law
- Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong, China.
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149
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Fiedler M, Weber F, Hautmann MG, Haubner F, Reichert TE, Klingelhöffer C, Schreml S, Meier JK, Hartmann A, Ettl T. Biological predictors of radiosensitivity in head and neck squamous cell carcinoma. Clin Oral Investig 2017; 22:189-200. [PMID: 28315964 DOI: 10.1007/s00784-017-2099-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
Abstract
OBJECTIVES The aim of this study is to investigate the influence of prognostic biomarkers on radiosensitivity and survival of advanced head and neck squamous cell carcinomas treated by primary (chemo)radiation. MATERIAL AND METHODS The clinicopathological data and immunohistochemical staining of p16, c-Met, survivin, PD-1, and PD-L1 of 82 primarily (chemo)irradiated patients with head and neck squamous cell carcinoma were analyzed. Associations with local and locoregional radiation response, overall survival (OS), disease-free (DFS), and disease-specific survival (DSS) were assessed. RESULTS Complete tumor response was associated with increased patient age (p = 0.007), N0-status (p = 0.022), M0-status (p = 0.007), and p16-positivity (p = 0.022). High PD-L1 was associated with M0-status (p = 0.026) and indicated tumor response to irradiation (p = 0.057); survivin expression showed higher rates of response failure (p = 0.073). Low PD-1 was associated with increased T-stage (p = 0.029) and local recurrence (p = 0.014). High PD-1 was strongly correlated with PD-L1-positive tumor infiltrating lymphocytes (p < 0.001). Low PD-L1 showed a significant correlation with high c-Met expression (p = 0.01). Significant predictors for unfavorable univariate survival were incomplete tumor response (DSS, p < 0.001), single radiotherapy (DSS, p = 0.002), M1-status (DSS, p < 0.001), decreased radiation dose (DSS, p = 0.014), high survivin (DSS, p = 0.045), and high c-Met (OS, p < 0.05). Survivin and c-Met also showed prognostic significance in multivariate survival analysis. CONCLUSIONS P16 and PD-L1 indicate radiosensitivity, whereas survivin and c-Met implicate radioresistance in primarily (chemo)irradiated head and neck squamous cell carcinomas. The role of the PD-1/PD-L1 immune checkpoints in radiation response and survival merits further investigation. CLINICAL RELEVANCE The findings may improve patient-specific therapy according to individual tumor characteristics.
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Affiliation(s)
- Mathias Fiedler
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Florian Weber
- Institute of Pathology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Matthias G Hautmann
- Department of Radiotherapy, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Frank Haubner
- Department of Otorhinolaryngology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Torsten E Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Christoph Klingelhöffer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Stephan Schreml
- Department of Dermatology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Johannes K Meier
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Arndt Hartmann
- Institute of Pathology, University Hospital of Erlangen, Krankenhausstraße 8/10, 91054, Erlangen, Germany
| | - Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
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150
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Li C, Xue Y, Xi YR, Xie K. Progress in the application and mechanism of metformin in treating non-small cell lung cancer. Oncol Lett 2017; 13:2873-2880. [PMID: 28529553 PMCID: PMC5431600 DOI: 10.3892/ol.2017.5862] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 01/04/2017] [Indexed: 12/17/2022] Open
Abstract
At present, the incidence and mortality of lung cancer demonstrate an increasing trend. Non-small cell lung cancer (NSCLC) accounts for ~80–85% of all lung cancer cases. Therefore, developing novel and more effective treatments is of great importance. The use of combination therapies, where several anticancer agents are used together, is a promising strategy. Recent studies demonstrate that metformin, which has been utilized for treating diabetes mellitus for >50 years, has antitumor effects in numerous types of cancer including NSCLC. Its antitumor effects can be direct and indirect, and it is able to synergize with other physical therapies including targeted anticancer therapy, chemotherapy and radiotherapy. The present review discusses how metformin affects cellular energy metabolism in NSCLC, the mechanism of its antitumor action and its synergy with other therapies. Information and analysis are provided in the present review to stimulate further studies on metformin as an adjunct anticancer treatment.
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Affiliation(s)
- Chan Li
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yang Xue
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Yu-Rong Xi
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Ke Xie
- Department of Oncology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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