201
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Gérard M, Corroyer-Dulmont A, Lesueur P, Collet S, Chérel M, Bourgeois M, Stefan D, Limkin EJ, Perrio C, Guillamo JS, Dubray B, Bernaudin M, Thariat J, Valable S. Hypoxia Imaging and Adaptive Radiotherapy: A State-of-the-Art Approach in the Management of Glioma. Front Med (Lausanne) 2019; 6:117. [PMID: 31249831 PMCID: PMC6582242 DOI: 10.3389/fmed.2019.00117] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 05/13/2019] [Indexed: 01/31/2023] Open
Abstract
Severe hypoxia [oxygen partial pressure (pO2) below 5–10 mmHg] is more frequent in glioblastoma multiforme (GBM) compared to lower-grade gliomas. Seminal studies in the 1950s demonstrated that hypoxia was associated with increased resistance to low–linear energy transfer (LET) ionizing radiation. In experimental conditions, the total radiation dose has to be multiplied by a factor of 3 to achieve the same cell lethality in anoxic situations. The presence of hypoxia in human tumors is assumed to contribute to treatment failures after radiotherapy (RT) in cancer patients. Therefore, a logical way to overcome hypoxia-induced radioresistance would be to deliver substantially higher doses of RT in hypoxic volumes delineated on pre-treatment imaging as biological target volumes (BTVs). Such an approach faces various fundamental, technical, and clinical challenges. The present review addresses several technical points related to the delineation of hypoxic zones, which include: spatial accuracy, quantitative vs. relative threshold, variations of hypoxia levels during RT, and availability of hypoxia tracers. The feasibility of hypoxia imaging as an assessment tool for early tumor response to RT and for predicting long-term outcomes is discussed. Hypoxia imaging for RT dose painting is likewise examined. As for the radiation oncologist's point of view, hypoxia maps should be converted into dose-distribution objectives for RT planning. Taking into account the physics and the radiobiology of various irradiation beams, preliminary in silico studies are required to investigate the feasibility of dose escalation in terms of normal tissue tolerance before clinical trials are undertaken.
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Affiliation(s)
- Michael Gérard
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France.,Department of Radiation Oncology, Centre Lutte Contre le Cancer François Baclesse, Caen, France
| | | | - Paul Lesueur
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France.,Department of Radiation Oncology, Centre Lutte Contre le Cancer François Baclesse, Caen, France
| | - Solène Collet
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France.,Department of Radiophysics, Centre Lutte Contre le Cancer François Baclesse, Caen, France
| | - Michel Chérel
- Team 13-Nuclear Oncology, INSERM U1232 Centre de Recherche en Cancérologie et Immunologie Nantes Angers (CRCINA), Nantes, France
| | - Mickael Bourgeois
- Team 13-Nuclear Oncology, INSERM U1232 Centre de Recherche en Cancérologie et Immunologie Nantes Angers (CRCINA), Nantes, France
| | - Dinu Stefan
- Department of Radiation Oncology, Centre Lutte Contre le Cancer François Baclesse, Caen, France
| | - Elaine Johanna Limkin
- Department of Radiotherapy, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Cécile Perrio
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/LDM-TEP Group, GIP Cyceron, Caen, France
| | - Jean-Sébastien Guillamo
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France.,Department of Neurology, Centre Hospitalier Universitaire de Nîmes, Nîmes, France
| | - Bernard Dubray
- Département de Radiothérapie et de Physique Médicale, Laboratoire QuantIF-LITIS [EA 4108], Centre de Lutte Contre le Cancer Henri Becquerel, Université de Normandie, Rouen, France
| | - Myriam Bernaudin
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France
| | - Juliette Thariat
- Department of Radiation Oncology, Centre Lutte Contre le Cancer François Baclesse, Caen, France
| | - Samuel Valable
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP Cyceron, Caen, France
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202
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Functional Interaction of Hypoxia-Inducible Factor 2-Alpha and Autophagy Mediates Drug Resistance in Colon Cancer Cells. Cancers (Basel) 2019; 11:cancers11060755. [PMID: 31151160 PMCID: PMC6627604 DOI: 10.3390/cancers11060755] [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: 04/16/2019] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 02/07/2023] Open
Abstract
Hypoxia and the accumulation of hypoxia-inducible factors (HIFs) in tumors have been associated with therapeutic resistance and with autophagy establishment. We examined the effects of stable knockdown of HIF-1α or HIF-2α expression on autophagy and drug resistance in colon cancer cells. We found that under normoxic conditions, malignant cells exhibit increased basal levels of autophagy, compared with non-malignant cells, in addition to the previously reported coexpression of HIF-1α and HIF-2α. Knockdown of HIF-1α or HIF-2α expression resulted in increased autophagic and apoptotic cell death, indicating that the survival of cells is HIF-dependent. Cytotoxic-induced cell death was significantly increased by knockdown of HIFs but not by autophagy inhibition. Strikingly, although malignancy-resistant cells were sensitized to death by nutrient stress, the combination with HIF-2α depletion, but not with HIF-1α depletion, induced severe cell death. Oxidative stress levels were significantly increased as a result of HIF-2α specific inhibition or silencing suggesting that this may contribute to sensitize cells to death. The in vitro results were confirmed in vivo using a xenograft mouse model. We found that coordinated autophagy and mTOR inhibition enhanced cell death and induced tumor remission only in HIF-2α-silenced cells. Finally, using a specific HIF-2α inhibitor alone or in combination with drugs in patient-derived primary colon cancer cells, overcame their resistance to 5-FU or CCI-779, thus emphasizing the crucial role played by HIF-2α in promoting resistance and cell survival.
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203
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Song D, Beringhs AO, Zhuang Z, Joshi G, Tran TH, Claffey KP, Yuan H, Lu X. Overcoming hypoxia-induced chemoresistance to cisplatin through tumor oxygenation monitored by optical imaging. Nanotheranostics 2019; 3:223-235. [PMID: 31183316 PMCID: PMC6536783 DOI: 10.7150/ntno.35935] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 05/18/2019] [Indexed: 12/15/2022] Open
Abstract
Perfluorocarbon nanoparticles have been reported to deliver oxygen to tumors and reduce hypoxia-induced radioresistance, however few studies have been carried out to study its role in reducing hypoxia-induced chemoresistance. The oxygenation effect also varies dramatically between different perfluorocarbon formulations and protocols, and there have been no efficient tools to monitor dynamic changes of tumor oxygenation non-invasively. Our goal was to promote tumor oxygenation using perfluorooctyl bromide (PFOB) nanoemulsion and to assess its role in sensitizing tumors to cisplatin treatment. A novel optical imaging protocol was also created to monitor the dynamic changes of tumor oxygenation in real-time. Methods: PFOB nanoemulsion with high oxygen-carrying capacity was prepared and administered to tumor-bearing mice intravenously. Tumor oxygenation was monitored using optical imaging with a hypoxia probe injected intratumorally, thus the oxygenation dynamics and best oxygenation protocol were determined. Various treatment groups were studied, and the tumor growth was monitored to evaluate the role of oxygenation in sensitizing tumors to cisplatin treatment. Results: PFOB nanoemulsion with and without pre-oxygenation along with carbogen breathing resulted in much better tumor oxygenation compared to carbogen breathing alone, while PFOB with air breathing did not show significant increase in tumor oxygenation. Pre-oxygenated PFOB with carbogen breathing produced the most effective oxygenation as early as 5 min post administration. In vitro and in vivo data showed preoxygenated PFOB nanoemulsion with carbogen breathing could increase cisplatin-mediated apoptosis of cancer cells and inhibited tumor growth at a low dose of cisplatin (1 mg/kg) treatment. Furthermore, the treatment did not induce nephrotoxicity. Conclusions: Preoxygenated PFOB nanoemulsion with carbogen breathing can effectively increase tumor oxygenation, which has a great potential to prevent/overcome hypoxia-induced chemotherapy resistance. In addition, optical imaging with intratumoral injection of the hypoxia probe was an efficient tool to monitor tumor oxygenation dynamics during PFOB administration, providing better understanding on oxygenation effects under different protocols.
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Affiliation(s)
- Donghui Song
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA 06269
| | - André O'Reilly Beringhs
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA 06269
| | - Zhenwu Zhuang
- Section of Cardiovascular Medicine, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA 06519
| | - Gaurav Joshi
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA 06269
| | - Thanh Huyen Tran
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA 06269
| | - Kevin P Claffey
- Department of Cell Biology, University of Connecticut Health Center, Farmington, Connecticut, USA 06030
| | - Hong Yuan
- Department of Radiology, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, USA 27599
| | - Xiuling Lu
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, Connecticut, USA 06269
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204
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Munir R, Lisec J, Swinnen JV, Zaidi N. Lipid metabolism in cancer cells under metabolic stress. Br J Cancer 2019; 120:1090-1098. [PMID: 31092908 PMCID: PMC6738079 DOI: 10.1038/s41416-019-0451-4] [Citation(s) in RCA: 193] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022] Open
Abstract
Cancer cells are often exposed to a metabolically challenging environment with scarce availability of oxygen and nutrients. This metabolic stress leads to changes in the balance between the endogenous synthesis and exogenous uptake of fatty acids, which are needed by cells for membrane biogenesis, energy production and protein modification. Alterations in lipid metabolism and, consequently, lipid composition have important therapeutic implications, as they affect the survival, membrane dynamics and therapy response of cancer cells. In this article, we provide an overview of recent insights into the regulation of lipid metabolism in cancer cells under metabolic stress and discuss how this metabolic adaptation helps cancer cells thrive in a harsh tumour microenvironment.
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Affiliation(s)
- Rimsha Munir
- Cancer Biology Lab, MMG, University of the Punjab, Lahore, 54590, Pakistan
| | - Jan Lisec
- Bundesanstalt für Materialforschung und -prüfung (BAM), Department of Analytical Chemistry, Richard-Willstätter-Straße 11, 12489, Berlin, Germany
| | - Johannes V Swinnen
- Laboratory of Lipid Metabolism and Cancer, Department of Oncology, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - Nousheen Zaidi
- Cancer Biology Lab, MMG, University of the Punjab, Lahore, 54590, Pakistan.
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205
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Vaddi DR, Piao L, Khan SA, Wang N, Prabhakar NR, Nanduri J. Hypoxia induced hERG trafficking defect linked to cell cycle arrest in SH-SY5Y cells. PLoS One 2019; 14:e0215905. [PMID: 31017964 PMCID: PMC6481834 DOI: 10.1371/journal.pone.0215905] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 04/10/2019] [Indexed: 11/18/2022] Open
Abstract
The alpha subunit of the voltage gated human ether-a-go-go-related (hERG) potassium channel regulates cell excitability in a broad range of cell lines. HERG channels are also expressed in a variety of cancer cells and control cell proliferation and apoptosis. Hypoxia, a common feature of tumors, alters gating properties of hERG currents in SH-SY5Y neuroblastoma cells. In the present study, we examined the molecular mechanisms and physiological significance underlying hypoxia-altered hERG currents in SH-SY5Y neuroblastoma cells. Hypoxia reduced the surface expression of 150kDa form and increased 125kDa form of hERG protein expression in the endoplasmic reticulum (ER). The changes in protein expression were associated with ~50% decrease in hERG potassium conductance. ER retention of hERG 125kDa form by CH was due to defective trafficking and was rescued by exposing cells to hypoxia at low temperatures or treatment with E-4031, a hERG channel blocker. Prolonged association of hERG with molecular chaperone Hsp90 resulting in complex oligomeric insoluble aggregates contributed to ER accumulation and trafficking defect. Hypoxia increased reactive oxygen species (ROS) levels and manganese (111) tetrakis (1methyl-4-pyridyl) porphyrin pentachloride, a membrane-permeable antioxidant prevented hypoxia-induced degradation of 150kDa and accumulation of 125kDa forms. Impaired trafficking of hERG by hypoxia was associated with reduced cell proliferation and this effect was prevented by antioxidant treatment. These results demonstrate that hypoxia through increased oxidative stress impairs hERG trafficking, leading to decreased K+ currents resulting in cell cycle arrest in SH-SY5Y cells.
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Affiliation(s)
- Damodara Reddy Vaddi
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
| | - Lin Piao
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
| | - Shakil A. Khan
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
| | - Ning Wang
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
| | - Nanduri R. Prabhakar
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
| | - Jayasri Nanduri
- Institute for Integrative Physiology, Center for Systems Biology of O2 Sensing, Biological Sciences Division, The University of Chicago, Chicago, Illinois, United States of America
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206
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Marx S, Van Gysel M, Breuer A, Dal Maso T, Michiels C, Wouters J, Le Calvé B. Potentialization of anticancer agents by identification of new chemosensitizers active under hypoxia. Biochem Pharmacol 2019; 162:224-236. [DOI: 10.1016/j.bcp.2019.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 01/04/2019] [Indexed: 12/27/2022]
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207
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Won D, Koh I, Cha J, Kim P. Hexagonally packed microwell plates for hypoxic microenvironment induction in tumorspheres. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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208
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Abstract
Data from observational studies indicate that both physical activity as well as exercise (ie, structured physical activity) is associated with reductions in the risk of recurrence and cancer mortality after a diagnosis of certain forms of cancer. Emerging evidence from preclinical studies indicates that physical activity/exercise paradigms regulate intratumoral vascular maturity and perfusion, hypoxia, and metabolism and augments the antitumor immune response. Such responses may, in turn, enhance response to standard anticancer treatments. For instance, exercise improves efficacy of chemotherapeutic agents, and there is rationale to believe that it will also improve radiotherapy response. This review overviews the current preclinical as well as clinical evidence supporting exercise modulation of therapeutic response and postulated biological mechanisms underpinning such effects. We also examine the implications for tumor response to radiation, chemotherapy, and immunotherapy.
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Affiliation(s)
- Kathleen A Ashcraft
- Departments of Radiation Oncology, Duke University School of Medicine, Durham, NC
| | | | - Lee W Jones
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.; Weill Cornell Medical College, New York, NY
| | - Mark W Dewhirst
- Departments of Radiation Oncology, Duke University School of Medicine, Durham, NC..
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209
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Ishida R, Matsumoto H, Ichii S, Kobayashi M, Arai M, Kotoku N. Structure–Activity Relationship of Biakamide, Selective Growth Inhibitors under Nutrient-Starved Condition from Marine Sponge. Chem Pharm Bull (Tokyo) 2019; 67:210-223. [DOI: 10.1248/cpb.c18-00587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ryosuke Ishida
- Graduate School of Pharmaceutical Sciences, Osaka University
| | | | - Sayaka Ichii
- Graduate School of Pharmaceutical Sciences, Osaka University
| | | | - Masayoshi Arai
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Naoyuki Kotoku
- Graduate School of Pharmaceutical Sciences, Osaka University
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210
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Ramanujan VK. Quantitative Imaging of Morphometric and Metabolic Signatures Reveals Heterogeneity in Drug Response of Three-Dimensional Mammary Tumor Spheroids. Mol Imaging Biol 2019; 21:436-446. [DOI: 10.1007/s11307-019-01324-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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211
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Tamma R, Rutigliano M, Lucarelli G, Annese T, Ruggieri S, Cascardi E, Napoli A, Battaglia M, Ribatti D. Microvascular density, macrophages, and mast cells in human clear cell renal carcinoma with and without bevacizumab treatment. Urol Oncol 2019; 37:355.e11-355.e19. [PMID: 30738745 DOI: 10.1016/j.urolonc.2019.01.025] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/31/2018] [Accepted: 01/23/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Clear cell renal cell carcinoma (ccRCC) represents a highly vascularized aggressive kidney cancer. Due to ccRCC chemotherapy resistance, antiangiogenesis is one of the most innovative targeted therapies for this tumor. The tumor microenvironment exerts important roles in tumor growth, angiogenesis, and metastatic escape. MATERIALS AND METHODS In this study, we investigated the composition of tumor cell microenvironment including mast cells, macrophages, and microvascular density in ccRCC tumor tissues collected from patients who underwent nephrectomy treated or not with bevacizumab as neoadjuvant therapy before surgery. RESULTS The results of this study indicate that bevacizumab-treated ccRCC samples present reduced microvascular density as well as a lower number of CD68-positive macrophages and tryptase-positive mast cells in comparison with the untreated patients. CONCLUSIONS It follows that the antiangiogenic activity of bevacizumab may be due to a direct effect on angiogenic cytokines released by tumor cells and an indirect effect on the release of pro-angiogenic factors by inflammatory stromal cells.
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Affiliation(s)
- Roberto Tamma
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Monica Rutigliano
- Department of Emergency and Organ Transplantation-Urology, Andrology and Kidney Transplantation Unit, University of Bari Medical School, Bari, Italy
| | - Giuseppe Lucarelli
- Department of Emergency and Organ Transplantation-Urology, Andrology and Kidney Transplantation Unit, University of Bari Medical School, Bari, Italy
| | - Tiziana Annese
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Simona Ruggieri
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy
| | - Eliano Cascardi
- Department of Emergency and Organ Transplantation-Section of Pathology, University of Bari Medical School, Bari, Italy
| | - Anna Napoli
- Department of Emergency and Organ Transplantation-Section of Pathology, University of Bari Medical School, Bari, Italy
| | - Michele Battaglia
- Department of Emergency and Organ Transplantation-Urology, Andrology and Kidney Transplantation Unit, University of Bari Medical School, Bari, Italy
| | - Domenico Ribatti
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy.
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212
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Li J, Xi W, Li X, Sun H, Li Y. Advances in inhibition of protein-protein interactions targeting hypoxia-inducible factor-1 for cancer therapy. Bioorg Med Chem 2019; 27:1145-1158. [PMID: 30819620 DOI: 10.1016/j.bmc.2019.01.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/25/2019] [Accepted: 01/31/2019] [Indexed: 12/23/2022]
Abstract
Hypoxia is a common characteristic of many types of solid tumors and is associated with tumor propagation, malignant progression, and resistance to anti-cancer therapy. HIF-1 pathway is one of the survival pathways activated in tumor in response to hypoxia. In hypoxic condition, hypoxia-inducible factor-1α (HIF-1α) is stabilized and translocated into nucleus where it forms heterodimer with HIF-1β and regulates the expression of a plethora of genes involved in different processes, such as cell proliferation, differentiation, apoptosis, vascularization/angiogenesis, tumor invasion and metastasis. Recruitment of co-activator p300 or CBP to HIF-1α is critical to the transactivation activity of HIF-1 dimer, therefore, small molecules which can block the dimerization of HIF-1α and HIF-1β or inhibit the interaction between HIF-1α and p300 can function as inhibitors of HIF-1 and have the potential to be developed as novel therapies for the treatment of human cancers. In this review, recent progress of small molecular inhibitors of protein-protein interactions targeting HIF-1 is summarized, the mechanism of functions of these compounds and their potential usage as anti-cancer agents have also been discussed.
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Affiliation(s)
- Jia Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Wanlin Xi
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaofang Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Haiying Sun
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.
| | - Yuyan Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.
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213
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Karagiota A, Kourti M, Simos G, Mylonis I. HIF-1α-derived cell-penetrating peptides inhibit ERK-dependent activation of HIF-1 and trigger apoptosis of cancer cells under hypoxia. Cell Mol Life Sci 2019; 76:809-825. [PMID: 30535970 PMCID: PMC11105304 DOI: 10.1007/s00018-018-2985-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/19/2018] [Accepted: 11/27/2018] [Indexed: 12/19/2022]
Abstract
Hypoxia is frequently encountered in the microenvironment of solid tumors. Hypoxia-inducible factors (HIFs), the main effectors of cell response to hypoxia, promote cancer cell survival and progression. HIF-1α, the oxygen-regulated subunit of HIF-1, is often correlated with oncogenesis and represents an attractive therapeutic target. We have previously reported that activation HIF-1α by ERK involves modification of two serine residues and masking of a nuclear export signal (NES), all inside a 43-amino acid domain termed ERK Targeted Domain (ETD). Overexpression of ETD variants including wild-type, phospho-mimetic (SE) or NES-less (IA) mutant forms caused HIF-1 inactivation in two hepatocarcinoma cell lines, while a phospho-deficient (SA) form was ineffective and acted as a sequence-specific negative control. To deliver these ETD forms directly into cancer cells, they were fused to the HIV TAT-sequence and produced as cell-permeable peptides. When the TAT-ETD peptides were added to the culture medium of Huh7 cells, they entered the cells and, with the exception of ETD-SA, accumulated inside the nucleus, caused mislocalization of endogenous HIF-1α to the cytoplasm, significant reduction of HIF-1 activity and inhibition of expression of specific HIF-1, but not HIF-2, gene targets under hypoxia. More importantly, transduced nuclear TAT-ETD peptides restricted migration, impaired colony formation and triggered apoptotic cell death of cancer cells grown under hypoxia, while they produced no effects in normoxic cells. These data demonstrate the importance of ERK-mediated activation of HIF-1 for low oxygen adaptation and the applicability of ETD peptide derivatives as sequence-specific HIF-1 and cancer cell growth inhibitors under hypoxia.
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Affiliation(s)
- Angeliki Karagiota
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - Maria Kourti
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Biopolis, 41500, Larissa, Greece
| | - George Simos
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Biopolis, 41500, Larissa, Greece.
- Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University, Montreal, Canada.
| | - Ilias Mylonis
- Laboratory of Biochemistry, Faculty of Medicine, University of Thessaly, Biopolis, 41500, Larissa, Greece.
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214
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Gao Y, Liu B, Feng L, Sun B, He S, Yang Y, Wu G, E G, Liu C, Gao Y, Zhang E, Zhu B. Targeting JUN, CEBPB, and HDAC3: A Novel Strategy to Overcome Drug Resistance in Hypoxic Glioblastoma. Front Oncol 2019; 9:33. [PMID: 30775317 PMCID: PMC6367651 DOI: 10.3389/fonc.2019.00033] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 01/14/2019] [Indexed: 11/23/2022] Open
Abstract
Hypoxia is a predominant feature in glioblastoma (GBM) and contributes greatly to its drug resistance. However, the molecular mechanisms which are responsible for the development of the resistant phenotype of GBM under hypoxic conditions remain unclear. To analyze the key pathways promoting therapy resistance in hypoxic GBM, we utilized the U87-MG cell line as a human GBM cell model and the human brain HEB cell line as a non-neoplastic brain cell model. These cell lines were cultured in the presence of 21, 5, and 1% O2 for 24 h. We detected the changes in transcriptional profiling and analyzed the biological processes and functional interactions for the genes with different expression levels under different hypoxia conditions. The results indicated that those alterations of U87-MG cells presented specific transcriptional signature in response to diverse hypoxia levels. Gene ontology analysis revealed that the genes related to the DNA replication and cell cycle were suppressed, while the genes involved in tissue and system development to promote cancer development were activated following hypoxia. Moreover, functional interaction analysis suggested that the epigenetic regulator HDAC3 and the transcriptional factors CEBPB and JUN played a central role in organ and system developmental process pathway. Previous studies reported the global alterations caused by activation of HDAC3, CEBPB, and JUN could form the molecular basis of the resistance to chemotherapy and radiation therapy of hypoxic GBM. In our study, the significant growth inhibitory effect of temozolomide on hypoxic GBM cells could be promoted under downregulation of these genes. The experiment suggested that HDAC3, CEBPB, and JUN were closely involved in the drug-resistance phenotype of hypoxic GBM. In summary, we profiled the hypoxia-dependent changes in the transcriptome of the U87-MG cell line and the human brain cell line HEB to identify the transcriptional signatures of U87-MG cells and elucidate the role of hypoxia in the drug-resistant phenotype of GBM. Furthermore, we identified three key genes and explored their important roles in the drug resistance of hypoxic GBM.
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Affiliation(s)
- Yixing Gao
- Department of Oncology, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Bao Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Lan Feng
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Binda Sun
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Shu He
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Yidong Yang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Gang Wu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Guoji E
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Chang Liu
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Yuqi Gao
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Erlong Zhang
- Institute of Medicine and Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University, Chongqing, China
- Key Laboratory of High Altitude Medicine, People's Liberation Army, Chongqing, China
| | - Bo Zhu
- Department of Oncology, Xinqiao Hospital, Army Medical University, Chongqing, China
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215
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An Immunohistochemical Study of HIF-1 Alpha in Oral Epithelial Dysplasia and Oral Squamous Cell Carcinoma. Indian J Otolaryngol Head Neck Surg 2019; 71:435-441. [PMID: 31750100 DOI: 10.1007/s12070-019-01597-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 01/10/2019] [Indexed: 10/27/2022] Open
Abstract
To evaluate and compare the expression of HIF-1 Alpha (HIF-1α) in oral epithelial dysplasia (OED) and various grades of Oral squamous cell carcinoma (OSCC). 30 cases each of OEDand OSCC were stained with HIF-1α antibody. Quantification of HIF-1α positive cellswas carried out and the data was statistically analysed. The mean % HIF-1α labeling index (HIF-1α LI) increased significantly from mild OED (32.11%), moderate OED (55.07%), to severe OED (64.58%). There was a statistically significant increase in the expression of HIF-1α as grades of OED increased. The mean HIF-1α LI % in well differentiated OSCC was 46.3%, Moderately differentiated OSCC-76.31% and Poorly differentiated OSCC-89.9%. The mean HIF-1α LI was found to increase with increasing grades of OSCC which was statistically significant (P < 0.05). Further a comparison of mean HIF-1α LI in OED with different histologic grades of OSCC by Independent samples t test was performed. We found statistically significant difference between OED and moderately differentiated OSCC and OED and poorly differentiated OSCC (P = 0.000). Progressive increase in expression of HIF-1α was noted from OED to OSCC. It can be postulated that epithelial dysplastic lesions with increased HIF-1α expression are at greater risk of malignant transformation, suggesting that the expression of HIF-1α is an early event in oral carcinogenesis.
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216
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Glutaminase 1 expression in colorectal cancer cells is induced by hypoxia and required for tumor growth, invasion, and metastatic colonization. Cell Death Dis 2019; 10:40. [PMID: 30674873 PMCID: PMC6426853 DOI: 10.1038/s41419-018-1291-5] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 12/11/2018] [Accepted: 12/17/2018] [Indexed: 02/05/2023]
Abstract
Cancer cells re-program their metabolic machinery to meet the requirements of malignant transformation and progression. Glutaminase 1 (GLS1) was traditionally known as a mitochondrial enzyme that hydrolyzes glutamine into glutamate and fuels rapid proliferation of cancer cells. However, emerging evidence has now revealed that GLS1 might be a novel oncogene involved in tumorigenesis and progression of human cancers. In this study, we sought to determine whether GLS1 implicated in invasion and metastasis of colorectal carcinoma, and its underlying molecular mechanism. By analyzing a large set of clinical data from online datasets, we found that GLS1 is overexpressed in cancers compared with adjacent normal tissues, and associated with increased patient mortality. Immunohistochemical analysis of GLS1 staining showed that high GLS1 expression is significantly correlated with lymph node metastasis and advanced clinical stage in colorectal cancer patients. To investigate the underlying mechanism, we analyzed the Cancer Genome Atlas database and found that GLS1 mRNA expression is associated with a hypoxia signature, which is correlated with an increased risk of metastasis and mortality. Furthermore, reduced oxygen availability increases GLS1 mRNA and protein expression, due to transcriptional activation by hypoxia-inducible factor 1. GLS1 expression in colorectal cancer cells is required for hypoxia-induced migration and invasion in vitro and for tumor growth and metastatic colonization in vivo.
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217
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Hypoxia-induced Slug SUMOylation enhances lung cancer metastasis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:5. [PMID: 30612578 PMCID: PMC6322271 DOI: 10.1186/s13046-018-0996-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 12/05/2018] [Indexed: 12/15/2022]
Abstract
Background The Slug-E-cadherin axis plays a critical role in non-small-cell lung cancers (NSCLCs) where aberrant upregulation of Slug promotes cancer metastasis. Now, the post-translational modifications of Slug and their regulation mechanisms still remain unclear in lung cancer. Hence, exploring the protein linkage map of Slug is of great interest for investigating the scenario of how Slug protein is regulated in lung cancer metastasis. Methods The Slug associated proteins, Ubc9 and SUMO-1, were identified using yeast two-hybrid screening; and in vitro SUMOylation assays combined with immunoprecipitation and immunoblotting were performed to explore the detail events and regulations of Slug SUMOylation. The functional effects of SUMOylation on Slug proteins were examined by EMSA, reporter assay, ChIP assay, RT-PCR, migration and invasion assays in vitro, tail vein metastatic analysis in vivo, and also evaluated the association with clinical outcome of NSCLC patients. Results Slug protein could interact with Ubc9 and SUMO-1 and be SUMOylated in cells. Amino acids 130–212 and 33–129 of Slug are responsible for its binding to Ubc9 and protein inhibitor of activated STAT (PIAS)y, respectively. SUMOylation could enhance the transcriptional repression activity of Slug via recruiting more HDAC1, resulting in reduced expression of downstream Slug target genes and enhanced lung cancer metastasis. In addition, hypoxia could increase Slug SUMOylation through attenuating the interactions of Slug with SENP1 and SENP2. Finally, high expression Slug and Ubc9 levels were associated with poor overall survival among NSCLC patients. Conclusions Ubc9/PIASy-mediated Slug SUMOylation and subsequent HDAC1 recruitment may play a crucial role in hypoxia-induced lung cancer progression, and these processes may serve as therapeutic targets for NSCLC. Electronic supplementary material The online version of this article (10.1186/s13046-018-0996-8) contains supplementary material, which is available to authorized users.
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218
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Jena MK, Jaswal S, Kumar S, Mohanty AK. Molecular mechanism of mammary gland involution: An update. Dev Biol 2019; 445:145-155. [DOI: 10.1016/j.ydbio.2018.11.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 10/01/2018] [Accepted: 11/06/2018] [Indexed: 12/11/2022]
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219
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Tang W, Fan W, Lau J, Deng L, Shen Z, Chen X. Emerging blood–brain-barrier-crossing nanotechnology for brain cancer theranostics. Chem Soc Rev 2019; 48:2967-3014. [DOI: 10.1039/c8cs00805a] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The advancements, perspectives, and challenges in blood–brain-barrier (BBB)-crossing nanotechnology for effective brain tumor delivery and highly efficient brain cancer theranostics.
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Affiliation(s)
- Wei Tang
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
| | - Joseph Lau
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
| | - Liming Deng
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
| | - Zheyu Shen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institutes of Health (NIH)
- Bethesda
- USA
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220
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Waker CA, Lober RM. Brain Tumors of Glial Origin. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1190:281-297. [PMID: 31760651 DOI: 10.1007/978-981-32-9636-7_18] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gliomas are a heterogeneous group of tumors with evolving classification based on genotype. Isocitrate dehydrogenase (IDH) mutation is an early event in the formation of some diffuse gliomas, and is the best understood mechanism of their epigenetic dysregulation. Glioblastoma may evolve from lower-grade lesions with IDH mutations, or arise independently from copy number changes in platelet-derived growth factor receptor alpha (PDGFRA) and phosphatase and tensin homolog (PTEN). Several molecular subtypes of glioblastoma arise from a common proneural precursor with a tendency toward transition to a mesenchymal subtype. Following oncogenic transformation, gliomas escape growth arrest through a distinct step of aberrant telomere reverse transcriptase (TERT) expression, or mutations in either alpha thalassemia/mental retardation syndrome (ATRX) or death-domain associated protein (DAXX) genes. Metabolic reprogramming allows gliomas to thrive in harsh microenvironments such as hypoxia, acidity, and nutrient depletion, which contribute to tumor initiation, maintenance, and treatment resistance.
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Affiliation(s)
- Christopher A Waker
- Department of Neuroscience, Cell Biology and Physiology, Wright State University, Dayton, OH, USA.,Department of Neurosurgery, Dayton Children's Hospital, One Children's Plaza, Dayton, OH, USA
| | - Robert M Lober
- Department of Neuroscience, Cell Biology and Physiology, Wright State University, Dayton, OH, USA. .,Department of Neurosurgery, Dayton Children's Hospital, One Children's Plaza, Dayton, OH, USA. .,Department of Pediatrics, Boonshoft School of Medicine, Wright State University, Dayton, OH, USA.
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221
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Tsubaki M, Takeda T, Tomonari Y, Koumoto YI, Imano M, Satou T, Nishida S. Overexpression of HIF-1α contributes to melphalan resistance in multiple myeloma cells by activation of ERK1/2, Akt, and NF-κB. J Transl Med 2019; 99:72-84. [PMID: 30353128 DOI: 10.1038/s41374-018-0114-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 07/07/2018] [Accepted: 07/13/2018] [Indexed: 12/20/2022] Open
Abstract
Multiple myeloma (MM) commonly displays multidrug resistance and is associated with poor prognosis. Therefore, it is important to identify the mechanisms by which MM cells develop multidrug resistance. Our previous study showed that multidrug resistance is correlated with overexpression of multidrug resistance protein 1 (MDR1) and Survivin, and downregulation of Bim expression in melphalan-resistant RPMI8226/L-PAM cells; however, the underlying mechanism of multidrug resistance remains unclear. In the present study, we investigated the mechanism of multidrug resistance in melphalan-resistant cells. We found that RPMI8226/L-PAM and ARH-77/L-PAM cells showed increased phosphorylation of extracellular signal-regulated protein kinase 1/2 (ERK1/2) and Akt, and nuclear localization of nuclear factor κB (NF-κB). The combination of ERK1/2, Akt, and NF-κB inhibitors with melphalan reversed melphalan resistance via suppression of Survivin expression and enhanced Bim expression in melphalan-resistant cells. In addition, RPMI8226/L-PAM and ARH-77/L-PAM cells overexpressed hypoxia-inducible factor 1α (HIF-1α) via activation of ERK1/2, Akt, and NF-κB. Moreover, suppression of HIF-1α by echinomycin or HIF-1α siRNA resensitized RPMI8226/L-PAM cells to melphalan through downregulation of Survivin expression and upregulation of Bim expression. These results indicate that enhanced Survivin expression and decreased Bim expression by HIF-1α via activation of ERK1/2, Akt, and NF-κB play a critical role in melphalan resistance. Our findings suggest that HIF-1α, ERK1/2, Akt, and NF-κB inhibitors are potentially useful as anti-MDR agents for the treatment of melphalan-resistant MM.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Faculty of Pharmacy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Tomoya Takeda
- Division of Pharmacotherapy, Faculty of Pharmacy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Yoshika Tomonari
- Division of Pharmacotherapy, Faculty of Pharmacy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Yu-Ichi Koumoto
- Division of Pharmacotherapy, Faculty of Pharmacy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Motohiro Imano
- Department of Surgery, Faculty of Medicine, Kindai University, Osakasayama, Osaka, Japan
| | - Takao Satou
- Department of Pathology, Faculty of Medicine, Kindai University, Osakasayama, Osaka, Japan
| | - Shozo Nishida
- Division of Pharmacotherapy, Faculty of Pharmacy, Kindai University, Kowakae, Higashi-Osaka, Japan.
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222
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Assessment of Stabilization and Activity of the HIFs Important for Hypoxia-Induced Signalling in Cancer Cells. Methods Mol Biol 2019; 1928:77-99. [PMID: 30725452 DOI: 10.1007/978-1-4939-9027-6_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Blood vessels in tumors contain chaotic branching structures and leaky vessel lumens, resulting in uneven supply of oxygen in the tumor microenvironment. High metabolic and proliferation rate of tumor cells further depletes the local oxygen supply. Therefore, hypoxia is a common phenomenon in multiple solid malignancies. Hypoxia-inducible factors (HIFs) regulate the transcription of a spectrum of genes, which are vitally important for tumor cell adaption under hypoxia, and shape the tumor microenvironment to become more favorable for progression. HIFs are involved in almost every step of cancer development through inducing angiogenesis, metabolic reprogramming, metastasis, cancer stemness maintenance, chemoresistance, and immune evasion. Here, we describe methods for the assessment of HIF activity, as well as identification of novel transcriptional targets of HIFs in vitro and in vivo.
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223
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Yan J, Chen D, Chen X, Sun X, Dong Q, Du Z, Wang T. Identification of imatinib-resistant long non-coding RNAs in gastrointestinal stromal tumors. Oncol Lett 2018; 17:2283-2295. [PMID: 30675294 PMCID: PMC6341907 DOI: 10.3892/ol.2018.9821] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/06/2018] [Indexed: 12/12/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are an abundant RNA species that belong to the competing endogenous RNA network, which serves a critical role in the development, diagnosis and progression of diseases. Using chip technology, the current study analyzed the expression of lncRNAs in paired normal gastric tissues, primary gastrointestinal stromal tumor (GIST) tissues and GIST tissues resistant to imatinib mesylate. Gene Ontology enrichment and Kyoto Encyclopedia of Genes and Genomes pathway analyses were used to predict potential tumorigenesis and drug resistance mechanisms. The hypoxia-inducible factor-1 pathway was identified as a putative mediator of drug resistance. To the best of our knowledge, the current study was the first to investigate the role of lncRNAs in imatinib mesylate-resistant GISTs and primary GISTs using chip technology. An association was revealed between lncRNA expression and imatinib mesylate resistance. In summary, the current study identified a panel of dysregulated lncRNAs that may serve as potential biomarkers or drug targets for GISTs, particularly secondary imatinib-resistant GISTs.
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Affiliation(s)
- Jingyi Yan
- Department of Gastroenterology and General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Didi Chen
- Department of Radiotherapy and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaolei Chen
- Department of Gastroenterology and General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xuecheng Sun
- Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Qiantong Dong
- Department of Gastroenterology and General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhou Du
- Department of Gastroenterology and General Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Tingting Wang
- Department of Radiotherapy and Medical Oncology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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224
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Autophagy and Its Role in Protein Secretion: Implications for Cancer Therapy. Mediators Inflamm 2018; 2018:4231591. [PMID: 30622432 PMCID: PMC6304875 DOI: 10.1155/2018/4231591] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/26/2018] [Accepted: 10/02/2018] [Indexed: 12/11/2022] Open
Abstract
Autophagy is a protein and organelle degradation pathway important for the maintenance of cytoplasmic homeostasis and for providing nutrients for survival in response to stress conditions. Recently, autophagy has been shown to be important for the secretion of diverse proteins involved in inflammation, intercellular signaling, and cancer progression. The role of autophagy in cancer depends on the stage of tumorigenesis, serving a tumor-suppressor role before transformation and a tumor-survival function once a tumor is established. We review recent evidence demonstrating the complexity of autophagy regulation during cancer, considering the interaction of autophagy with protein secretion pathways. Autophagy manipulation during cancer treatment is likely to affect protein secretion andinter-cellular signaling either to the neighboring cancer cells or to the antitumoral immune response. This will be an important consideration during cancer therapy since several clinical trials are trying to manipulate autophagy in combination with chemotherapy for the treatment of diverse types of cancers.
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225
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Lin S, Zhu B, Huang G, Zeng Q, Wang C. Microvesicles derived from human bone marrow mesenchymal stem cells promote U2OS cell growth under hypoxia: the role of PI3K/AKT and HIF-1α. Hum Cell 2018; 32:64-74. [PMID: 30506278 DOI: 10.1007/s13577-018-0224-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/18/2018] [Indexed: 02/05/2023]
Abstract
Studies have demonstrated that mesenchymal stem cells (MSCs) can promote tumor growth, and MSC microvesicles (MVs) are very important in the tumor microenvironment and information transfer between cells during tumorigenesis and development. However, the potential effects and mechanisms of MSC-MVs on tumor growth are still controversial. Here in this study, we investigated the roles and effects of human bone marrow MSC-MVs (hBMSC-MVs) on human osteosarcoma (U2OS) cell growth under hypoxia in vitro and in vivo. BMSC-MVs were harvested and purified by ultracentrifugation. U2OS cells were treated with different concentrations of hBMSC-MVs under hypoxia. Cell viability and migration was measured by MTT test, transwell invasion assay and scratch migration assay. The expression of the signaling molecules of AKT, VEGF, GLUT1 and Bax, cleaved-caspase3 in U2OS cells cultured with MVs under hypoxia was determined by western blot. U2OS/siHIF-1α or U2OS/NC cells mixed with/without MVs were subcutaneously injected into nude mice; the tumor size and weight were detected. We found that hBMSC-MVs promoted U2OS cell proliferation and migration under hypoxia in vitro, and that was partially associated with the PI3K/AKT and HIF-1α pathways. MVs co-injected with U2OS cells promoted tumor growth in a mouse xenograft model. siHIF-1α transfection reversed these changes to some extent. The function of hBMSC-MVs on U2OS cell progression and tumor growth was associated with PI3K/AKT and HIF-1α pathway under hypoxia. These findings support a new mechanism suggesting the contribution of MSC-MVs to tumor growth.
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Affiliation(s)
- Shanshan Lin
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bo Zhu
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Guozhi Huang
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Qing Zeng
- Department of Rehabilitation Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China.
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226
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Al-Qassab Y, Grassilli S, Brugnoli F, Vezzali F, Capitani S, Bertagnolo V. Protective role of all-trans retinoic acid (ATRA) against hypoxia-induced malignant potential of non-invasive breast tumor derived cells. BMC Cancer 2018; 18:1194. [PMID: 30497437 PMCID: PMC6267073 DOI: 10.1186/s12885-018-5038-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 11/04/2018] [Indexed: 12/14/2022] Open
Abstract
Background The presence of hypoxic areas is common in all breast lesions but no data clearly correlate low oxygenation with the acquisition of malignant features by non-invasive cells, particularly by cells from ductal carcinoma in situ (DCIS), the most frequently diagnosed tumor in women. Methods By using a DCIS-derived cell line, we evaluated the effects of low oxygen availability on malignant features of non-invasive breast tumor cells and the possible role of all-trans retinoic acid (ATRA), a well-known anti-leukemic drug, in counteracting the effects of hypoxia. The involvement of the β2 isoform of PI-PLC (PLC-β2), an ATRA target in myeloid leukemia cells, was also investigated by specific modulation of the protein expression. Results We demonstrated that moderate hypoxia is sufficient to induce, in DCIS-derived cells, motility, epithelial-to-mesenchymal transition (EMT) and expression of the stem cell marker CD133, indicative of their increased malignant potential. Administration of ATRA supports the epithelial-like phenotype of DCIS-derived cells cultured under hypoxia and keeps down the number of CD133 positive cells, abrogating almost completely the effects of poor oxygenation. We also found that the mechanisms triggered by ATRA in non-invasive breast tumor cells cultured under hypoxia is in part mediated by PLC-β2, responsible to counteract the effects of low oxygen availability on CD133 levels. Conclusions Overall, we assigned to hypoxia a role in increasing the malignant potential of DCIS-derived cells and we identified in ATRA, currently used in treatment of acute promyelocytic leukemia (APL), an agonist potentially useful in preventing malignant progression of non-invasive breast lesions showing hypoxic areas.
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Affiliation(s)
- Yasamin Al-Qassab
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy.,College of Medicine, Department of Anatomy, University of Baghdad, Baghdad, Iraq
| | - Silvia Grassilli
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy
| | - Federica Brugnoli
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy
| | - Federica Vezzali
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy
| | - Silvano Capitani
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy.,LTTA Centre, University of Ferrara, Ferrara, Italy
| | - Valeria Bertagnolo
- Signal Transduction Unit, Section of Anatomy and Histology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Via Fossato di Mortara, 70, 44121, Ferrara, Italy.
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227
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Near-infrared off-on fluorescence probe activated by NTR for in vivo hypoxia imaging. Biosens Bioelectron 2018; 119:141-148. [DOI: 10.1016/j.bios.2018.08.014] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 08/05/2018] [Accepted: 08/08/2018] [Indexed: 01/17/2023]
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228
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Wang L, Niu M, Zheng C, Zhao H, Niu X, Li L, Hu Y, Zhang Y, Shi J, Zhang Z. A Core-Shell Nanoplatform for Synergistic Enhanced Sonodynamic Therapy of Hypoxic Tumor via Cascaded Strategy. Adv Healthc Mater 2018; 7:e1800819. [PMID: 30303621 DOI: 10.1002/adhm.201800819] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/13/2018] [Indexed: 01/01/2023]
Abstract
Sonodynamic therapy (SDT) always causes tumor hypoxia aggravation which can induce malignant cell proliferation and drug resistance. To overcome these disadvantages, a cascaded drug delivery system (Lipo/HMME/ACF@MnO2 -AS1411) is constructed for synergistic enhanced sonodynamic therapy. First, hematoporphyrin monomethyl ether (HMME) and acriflavine (ACF) are encapsulated in the lipid layers and the inner aqueous cores of the liposomes, respectively. Then the ultrathin manganese dioxide (MnO2 ) nanosheets are coated on the surface of the liposomes by using KMnO4 and polyethylene glycol through "one step reduction and modification" method. Furthermore, the nanoparticles are decorated with tumor-targeting AS1411 aptamer through the phosphate groups on the DNA strand which can bind to Mn sites to obtain Lipo/HMME/ACF@MnO2 -AS1411 delivery system. Herein, HMME can act as a sonosensitizer, and ACF is used to prevent the formation of HIF-1α/HIF-1β dimerization to overcome the negative effects after SDT. The Lipo/HMME/ACF@MnO2 -AS1411 delivery system has multiple functions, including codelivery of HMME and ACF, pH/glutathione/ultrasound triple responses, synergistic cascaded enhancement of SDT, precise tumor-targeting, and magnetic resonance imaging. The in vitro and in vivo results suggest that the Lipo/HMME/ACF@MnO2 -AS1411 delivery system is a promising core-shell nanoplatform for synergistic enhancement of sonodynamic therapy, which can provide a new approach in the related research fields.
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Affiliation(s)
- Lei Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Mengya Niu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Cuixia Zheng
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Hongjuan Zhao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xiuxiu Niu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Li Li
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yujie Hu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yingjie Zhang
- The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450052, P. R. China
| | - Jinjin Shi
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, P. R. China
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Nobre AR, Entenberg D, Wang Y, Condeelis J, Aguirre-Ghiso JA. The Different Routes to Metastasis via Hypoxia-Regulated Programs. Trends Cell Biol 2018; 28:941-956. [PMID: 30041830 PMCID: PMC6214449 DOI: 10.1016/j.tcb.2018.06.008] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 12/18/2022]
Abstract
Hypoxia is linked to metastasis; however, how it affects metastatic progression is not clear due to limited consensus in the literature. We posit that this lack of consensus is due to hypoxia being studied using different approaches, such as in vitro, primary tumor, or metastasis assays in an isolated manner. Here, we review the pros and cons of in vitro hypoxia assays, highlight in vivo studies that inform on physiological hypoxia, and review the evidence that primary tumor hypoxia might influence the fate of disseminated tumor cells (DTCs) in secondary organs. Our analysis suggests that consensus can be reached by using in vivo methods of study, which also allow better modeling of how hypoxia affects DTC fate and metastasis.
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Affiliation(s)
- Ana Rita Nobre
- Division of Hematology and Oncology, Department of Medicine, Department of Otolaryngology, Department of Oncological Sciences, Tisch Cancer Institute, Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA; Abel Salazar School of Biomedicine, Porto University, Porto, Portugal; These authors contributed equally
| | - David Entenberg
- Department of Anatomy and Structural Biology, Gruss Lipper Biophotonics Center, Integrated Imaging Program, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461, USA; These authors contributed equally
| | - Yarong Wang
- Department of Anatomy and Structural Biology, Gruss Lipper Biophotonics Center, Integrated Imaging Program, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461, USA
| | - John Condeelis
- Department of Anatomy and Structural Biology, Gruss Lipper Biophotonics Center, Integrated Imaging Program, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, NY 10461, USA.
| | - Julio A Aguirre-Ghiso
- Division of Hematology and Oncology, Department of Medicine, Department of Otolaryngology, Department of Oncological Sciences, Tisch Cancer Institute, Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA.
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230
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Nunes AS, Barros AS, Costa EC, Moreira AF, Correia IJ. 3D tumor spheroids as in vitro models to mimic in vivo human solid tumors resistance to therapeutic drugs. Biotechnol Bioeng 2018; 116:206-226. [DOI: 10.1002/bit.26845] [Citation(s) in RCA: 309] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/30/2018] [Accepted: 09/21/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Ana S. Nunes
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Andreia S. Barros
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Elisabete C. Costa
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - André F. Moreira
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Ilídio J. Correia
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
- Departamento de Engenharia Química; Universidade de Coimbra, (CIEPQF); Coimbra Portugal
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231
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Jo Y, Choi N, Kim K, Koo HJ, Choi J, Kim HN. Chemoresistance of Cancer Cells: Requirements of Tumor Microenvironment-mimicking In Vitro Models in Anti-Cancer Drug Development. Am J Cancer Res 2018; 8:5259-5275. [PMID: 30555545 PMCID: PMC6276092 DOI: 10.7150/thno.29098] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/04/2018] [Indexed: 01/09/2023] Open
Abstract
For decades, scientists have been using two-dimensional cell culture platforms for high-throughput drug screening of anticancer drugs. Growing evidence indicates that the results of anti-cancer drug screening vary with the cell culture microenvironment, and this variation has been proposed as a reason for the high failure rate of clinical trials. Since the culture condition-dependent drug sensitivity of anti-cancer drugs may negatively impact the identification of clinically effective drug candidates, more reliable in vitro cancer platforms are urgently needed. In this review article, we provide an overview of how cell culture conditions can alter drug efficacy and highlight the importance of developing more reliable cancer drug testing platforms for use in the drug discovery process. The environmental factors that can alter drug delivery and efficacy are reviewed. Based on these observations of chemoresistant tumor physiology, we summarize the recent advances in the fabrication of in vitro cancer models and the model-dependent cytotoxicity of anti-cancer drugs, with a particular focus on engineered environmental factors in these platforms. It is believed that more physiologically relevant cancer models can revolutionize the drug discovery process.
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232
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Modulation of Hypoxia-Induced Chemoresistance to Polymeric Micellar Cisplatin: The Effect of Ligand Modification of Micellar Carrier Versus Inhibition of the Mediators of Drug Resistance. Pharmaceutics 2018; 10:pharmaceutics10040196. [PMID: 30347860 PMCID: PMC6320993 DOI: 10.3390/pharmaceutics10040196] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/14/2018] [Accepted: 10/19/2018] [Indexed: 01/03/2023] Open
Abstract
Hypoxia can induce chemoresistance, which is a significant clinical obstacle in cancer therapy. Here, we assessed development of hypoxia-induced chemoresistance (HICR) against free versus polymeric cisplatin micelles in a triple negative breast cancer cell line, MDA-MB-231. We then explored two strategies for the modulation of HICR against cisplatin micelles: a) the development of actively targeted micelles; and b) combination therapy with modulators of HICR in MDA-MB-231 cells. Actively targeted cisplatin micelles were prepared through surface modification of acetal-poly(ethylene oxide)-poly(α-carboxyl-ε-caprolactone) (acetal-PEO-PCCL) micelles with epidermal growth factor receptor (EGFR)-targeting peptide, GE11 (YHWYGYTPQNVI). Our results showed that hypoxia induced resistance against free and cisplatin micelles in MDA-MB-231 cells. A significant increase in micellar cisplatin uptake was observed in MDA-MB-231 cells that overexpress EGFR, following surface modification of micelles with GE11. This did not lead to increased cytotoxicity of micellar cisplatin, however. On the other hand, the addition of pharmacological inhibitors of key molecules involved in HICR in MDA-MB-231 cells, i.e., inhibitors of hypoxia inducing factor-1 (HIF-1) and signal transducer and activator of transcription 3 (STAT3), substantially enhanced the cytotoxicity of free and cisplatin micelles. The results indicated the potential benefit of combination therapy with HIF-1 and STAT3 inhibitors in overcoming HICR to free or micellar cisplatin.
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233
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Abstract
Despite an overall improvement in survival rates for cancer, certain resistant forms of the disease still impose a significant burden on patients and healthcare systems. Standard chemotherapy in these cases is often ineffective and/or gives rise to severe side effects. Targeted delivery of chemotherapeutics could improve both tumour response and patient experience. Hence, there is an urgent need to develop effective methods for this. Ultrasound is an established technique in both diagnosis and therapy. Its use in conjunction with microbubbles is being actively researched for the targeted delivery of small-molecule drugs. In this review, we cover the methods by which ultrasound and microbubbles can be used to overcome tumour barriers to cancer therapy.
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234
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Dianat-Moghadam H, Heidarifard M, Jahanban-Esfahlan R, Panahi Y, Hamishehkar H, Pouremamali F, Rahbarghazi R, Nouri M. Cancer stem cells-emanated therapy resistance: Implications for liposomal drug delivery systems. J Control Release 2018; 288:62-83. [DOI: 10.1016/j.jconrel.2018.08.043] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/17/2022]
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235
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Structure-activity relationship study of hypoxia-activated prodrugs for proteoglycan-targeted chemotherapy in chondrosarcoma. Eur J Med Chem 2018; 158:51-67. [DOI: 10.1016/j.ejmech.2018.08.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/18/2023]
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236
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Eales KL, Wilkinson EA, Cruickshank G, Tucker JHR, Tennant DA. Verteporfin selectively kills hypoxic glioma cells through iron-binding and increased production of reactive oxygen species. Sci Rep 2018; 8:14358. [PMID: 30254296 PMCID: PMC6156578 DOI: 10.1038/s41598-018-32727-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/12/2018] [Indexed: 12/12/2022] Open
Abstract
Gliomas are highly malignant brain tumours characterised by extensive areas of poor perfusion which subsequently leads to hypoxia and reduced survival. Therapies that address the hypoxic microenvironment are likely to significantly improve patient outcomes. Verteporfin, a benzoporphyrin-like drug, has been suggested to target the Yes-associated protein (YAP). Increased YAP expression and transcriptional activity has been proposed in other tumour types to promote malignant cell survival and thus YAP-inhibitor, verteporfin, may be predicted to impact glioma cell growth and viability. Due to the extensive hypoxic nature of gliomas, we investigated the effect of hypoxia on YAP expression and found that YAP transcription is increased under these conditions. Treatment of both primary and immortalised glioblastoma cell lines with verteporfin resulted in a significant decrease in viability but strikingly only under hypoxic conditions (1% O2). We discovered that cell death occurs through a YAP-independent mechanism, predominately involving binding of free iron and likely through redox cycling, contributes to production of reactive oxygen species. This results in disruption of normal cellular processes and death in cells already under oxidative stress - such as those in hypoxia. We suggest that through repurposing verteporfin, it represents a novel means of treating highly therapy-resistant, hypoxic cells in glioma.
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Affiliation(s)
- Katherine L Eales
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Edward A Wilkinson
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Garth Cruickshank
- Department of Neurosurgery, University Hospitals Birmingham, NHS Foundation Trust, Birmingham, UK
| | - James H R Tucker
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Daniel A Tennant
- Institute of Metabolism and Systems Research, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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237
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Comparative study of the therapeutic effect of Doxorubicin and Resveratrol combination on 2D and 3D (spheroids) cell culture models. Int J Pharm 2018; 551:76-83. [PMID: 30217766 DOI: 10.1016/j.ijpharm.2018.09.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 01/26/2023]
Abstract
The assessment of drug-combinations for pancreatic cancer treatment is usually performed in 2D cell cultures. In this study, the therapeutic effect and the synergistic potential of a particular drug-combination towards 2D and 3D cell cultures of pancreatic cancer were compared for the first time. Thus, the effect of Doxorubicin:Resveratrol (DOX:RES) combinations (at molar ratios ranging from 5:1 to 1:5) in the viability of PANC-1 cells cultured as 2D monolayers and as 3D spheroids was analyzed. The results showed that the cells' viability was more affected when DOX:RES combinations containing higher contents of RES (1:2-1:5 molar ratios) were used. This can be explained by the ability of RES to reduce the P-glycoprotein (P-gp)-mediated efflux of DOX. Further, it was also revealed that the synergic effect of this drug combination was different in 2D and in 3D cell cultures. In fact, despite of the 1:4 and 1:5 DOX:RES ratios being both synergistic for both types of PANC-1 cell cultures, their Combination Indexes (CI) in the monolayers were lower than those attained in spheroids. Overall, the obtained results revealed that the DOX:RES combination is promising for pancreatic cancer treatment and corroborate the emergent need to evaluate drug combinations in 3D cell cultures.
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238
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Araos J, Sleeman JP, Garvalov BK. The role of hypoxic signalling in metastasis: towards translating knowledge of basic biology into novel anti-tumour strategies. Clin Exp Metastasis 2018; 35:563-599. [DOI: 10.1007/s10585-018-9930-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 08/13/2018] [Indexed: 02/06/2023]
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239
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Impact of the hypoxic phenotype on the uptake and efflux of nanoparticles by human breast cancer cells. Sci Rep 2018; 8:12318. [PMID: 30120388 PMCID: PMC6098061 DOI: 10.1038/s41598-018-30517-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/30/2018] [Indexed: 12/30/2022] Open
Abstract
Breast cancer cells adapt to the hypoxic tumoral environment by undergoing changes in metabolism, cell signalling, endo-lysosomal receptor uptake and recycling. The resulting hypoxic cell phenotype has the potential to undermine the therapeutic efficacy of nanomedicines designed for endocytic uptake and specific intracellular trafficking. The aim of this study was to examine the impact of hypoxia and simulated reperfusion on the in vitro uptake and release of nanomedicines by human breast cancer cells. Cells were exposed to a hypoxic preconditioning treatment in 1% oxygen for 6 and 24 hours to induce temporal changes in the hypoxic circuit (e.g. HIF-1α expression). The preconditioned cells were then dosed with nanoparticles for 45 or 180 minutes emulating nanomedicine access following tumor reperfusion. Hypoxic preconditioning significantly increased nanoparticle retention by up to 10% when compared to normoxic cultures, with the greatest relative difference between normoxic and hypoxic cultures occurring with a 45 minute dosing interval. Exocytosis studies indicated that the preconditioned cells had a significantly increased nanoparticle efflux (up to 9%) when compared to normoxic cells. Overall, we were able to show that hypoxic preconditioning regulates both the endocytosis and exocytosis of nanomedicines in human breast cancer cells.
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240
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Kim MC, Hwang SH, Kim NY, Lee HS, Ji S, Yang Y, Kim Y. Hypoxia promotes acquisition of aggressive phenotypes in human malignant mesothelioma. BMC Cancer 2018; 18:819. [PMID: 30111297 PMCID: PMC6094475 DOI: 10.1186/s12885-018-4720-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 08/02/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Hypoxia is a hallmark of the solid tumor microenvironment and is associated with poor outcomes in cancer patients. The present study was performed to investigate mechanisms underlying the hypoxia-induced phenotypic changes using human malignant mesothelioma (HMM) cells. METHODS Hypoxic conditions were achieved by incubating HMM cells in the air chamber. The effect of hypoxia on phenotype changes in HMM cells was investigated by performing in vitro clonogenicity, drug resistance, migration, and invasion assays. Signaling pathways and molecules involved in the more aggressive behaviors of HMM cells under hypoxia were investigated. A two-tailed unpaired Student's t-test or one-way ANOVA with Bonferroni post-test correction was used in this study. RESULTS Hypoxic conditions upregulated hypoxia-inducible factor 1 alpha (HIF-1α) and HIF-2α in parallel with the upregulation of its target, Glut-1, in HMM cells. In vitro clonogenicity of HMM cells was significantly increased in hypoxic conditions, but the proliferation of cells at a high density in hypoxia was lower than that in normoxic conditions. The expression levels of HIF-2α and Oct4 were increased in hypoxic HMM cells. The percentage of cells with high CD44 expression was significantly higher in HMM cells cultured in hypoxia than those cultured in normoxia. Hypoxia significantly enhanced the resistance of HMM cells to cisplatin, which occurred through cytoprotection against cisplatin-induced apoptosis. While cisplatin treatment decreased the ratio of Bcl-2 to Bax in normoxic condition, hypoxia conversely increased the ratio in HMM cells treated with cisplatin. Hypoxia increased the mobility and invasiveness of HMM cells. Epithelial to mesenchymal transition was promoted, which was indicated by the repression of E-cadherin and the concomitant increase of vimentin in HMM cells. CONCLUSIONS The data illustrated that hypoxic conditions augmented the aggressive phenotypes of HMM cells at the biological and molecular levels. The present study provides valuable background information beginning to understand aggressiveness of HMM in tumor microenvironments, suggesting that a control measure for tumor hypoxia may be an effective therapeutic strategy to reduce the aggressiveness of cancer cells in HMM patients.
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Affiliation(s)
- Myung-Chul Kim
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Sung-Hyun Hwang
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Na-Yon Kim
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Hong-Seok Lee
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Sumin Ji
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Yeseul Yang
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.,BK21 PLUS Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea
| | - Yongbaek Kim
- Laboratory of Clinical Pathology, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea. .,Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, South Korea.
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241
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Luo G, Xia X, Wang X, Zhang K, Cao J, Jiang T, Zhao Q, Qiu Z. miR-301a plays a pivotal role in hypoxia-induced gemcitabine resistance in pancreatic cancer. Exp Cell Res 2018; 369:120-128. [PMID: 29772221 DOI: 10.1016/j.yexcr.2018.05.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 05/11/2018] [Accepted: 05/13/2018] [Indexed: 02/06/2023]
Abstract
Hypoxia is a hallmark of pancreatic cancer (PC) and is associated with gemcitabine resistance. However, the mechanisms underlying hypoxia-induced gemcitabine resistance in PC remain greatly unknown. Our previous work showed that miR-301a, a hypoxia-sensitive miRNA, is involved in PC metastasis under hypoxia via regulation of its target gene P63. Here, we showed that miR-301a was upregulated in a NF-κB independent manner and promoted gemcitabine resistance under hypoxic conditions in vitro. In addition, TAp63, a member of the P63 family, reversed hypoxia-induced gemcitabine resistance by promoting degradation of HIF-1α. Furthermore, we proved that TAp63 was a functional downstream target of miR-301a and mediated the biological properties of miR-301a in PC. Taken together, these findings indicate that miR-301a exerts as a critical regulator involved in hypoxia-induced gemcitabine resistance in PC and may have potentials to be a therapeutic target for PC patients.
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Affiliation(s)
- Guangtao Luo
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Xiang Xia
- Department of General Surgery, Shanghai Renji Hospital, Shanghai Jiao Tong University School of Medicine, China
| | - Xiaofeng Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Kundong Zhang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Jun Cao
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Tao Jiang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China
| | - Qian Zhao
- Department of Pathophysiology Key Laboratory of Cell Differentiation and Apoptosis and National Ministry of Education, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China.
| | - Zhengjun Qiu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, China.
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242
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Li Y, Xu S, Cai M. PO 2-based biodosimetry evaluation using an EPR technique acts as a sensitive index for chemotherapy. Oncol Lett 2018; 16:2167-2174. [PMID: 30008915 PMCID: PMC6036430 DOI: 10.3892/ol.2018.8911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 04/17/2018] [Indexed: 12/02/2022] Open
Abstract
The partial pressure of oxygen (PO2) in the tumor microenvironment directly affects tumor sensitivity to chemotherapy. In the present study, a lithium phthalocyanine probe was implanted into MCF-7 human breast cancer cells, followed by transplant of the cells into nude mice. The present study used an electron paramagnetic resonance (EPR) oximetry measuring technique to dynamically monitor PO2 in the tumor microenvironment prior to and following chemotherapy, and aimed to determine the precise time window in which the microenvironmental PO2 peaked following chemotherapy. The results indicated that PO2 was significantly higher in breast cancer compared with control (P<0.05). Following four cycles of chemotherapy, the activity of NADH dehydrogenase, succinate-cytochrome c reductase and cytochrome c oxidase in the mitochondria of cells was significantly reduced when compared with their activity prior to chemotherapy (P<0.05). Regional blood flow in tumor tissues undergoing chemotherapy was significantly lower than that prior to chemotherapy (P<0.05). The rate of cellular apoptosis in the PO2 peak-based chemotherapy group was significantly greater than that in the conventional chemotherapy group after two and four cycles of chemotherapy (P<0.05). Tumor volume in the PO2 peak-based chemotherapy group was significantly reduced compared with that in the 0.9% NaCl solution control and the conventional chemotherapy groups after four cycles of chemotherapy (P<0.05). The tumor inhibitory rate of the experimental group was significantly higher than that of the conventional chemotherapy group (P<0.01). In conclusion, the present study may provide guidance for the development of effective strategies depending on tumor-maximal response to chemotherapy in an oxygen-rich environment. Additionally, the present study aimed to establish a foundation for a clinical noninvasive assessment intended to guide treatment and formulate individual regimens, in order to improve cancer therapeutics, sensitivity monitoring and curative effect estimation.
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Affiliation(s)
- Yuanjing Li
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
| | - Shengxin Xu
- Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu 241000, Anhui, P.R. China
| | - Ming Cai
- Department of Endocrinology and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
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Lee J, Shin D, Roh JL. Development of an in vitro cell-sheet cancer model for chemotherapeutic screening. Theranostics 2018; 8:3964-3973. [PMID: 30083273 PMCID: PMC6071526 DOI: 10.7150/thno.26439] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/14/2018] [Indexed: 01/09/2023] Open
Abstract
Epithelial cancer grows in vivo in a microenvironment that comprises tumour, stroma, and immune cells. A three-dimensional (3D) culture model might be able to mimic the tumour microenvironment in vivo; therefore, we developed a new 3D epithelial cancer model using in vitro cell-sheet engineering and compared the results of treatment with several chemotherapeutic drugs among the 3D cell-sheet model, spheroid culture, and 2D cell culture. Methods: The cell sheet comprised keratinocytes and a plasma fibrin matrix containing fibroblasts. Cancer spheroids with or without cancer-associated fibroblasts (CAFs) were interposed between the keratinocytes and fibrin layer. Cell growth, viability, and hypoxia were measured using the cell counting kit-8, LIVE/DEAD assay, and propidium iodide and LOX-1 staining. The morphology, invasion, and mRNA and protein expression were compared among the different cell culture models. Results: Enhanced resistance to sorafenib and cisplatin by cancer spheroids and CAFs was more easily observed in the 3D than in the 2D model. Invasion by cancer-CAF spheroids into the fibrin matrix was more clearly observed in the 3D cell sheet. The expansion of viable cancer cells increased in the 3D cell sheet, particularly in those with CAFs, which were significantly inhibited by treatment with 10 μM sorafenib or 20 μM cisplatin (P < 0.05). TGF-β1, N-cadherin, and vimentin mRNA and protein levels were higher in the 3D cell-sheet model. Conclusions: The 3D cell sheet-based cancer model could be applied to in vitro observation of epithelial cancer growth and invasion and to anticancer drug testing.
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Wu Y, Zhong C, Du T, Qiu J, Xiong M, Hu Y, Chen Y, Li Y, Liu B, Liu Y, Zou B, Jiang S, Gou M. Preparation and characterization of yeast-encapsulated doxorubicin microparticles. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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245
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Tong WW, Tong GH, Liu Y. Cancer stem cells and hypoxia-inducible factors (Review). Int J Oncol 2018; 53:469-476. [PMID: 29845228 DOI: 10.3892/ijo.2018.4417] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 05/14/2018] [Indexed: 12/18/2022] Open
Abstract
Cancer stem cells (CSCs), also known as tumor-initiating cells, are a subpopulation of tumor cells that exhibit properties similar to those of normal stem cells. Oxygen is an important regulator of cellular metabolism; hypoxia-inducible factors (HIFs) mediate metabolic switches in cells in hypoxic environments. Hypoxia clearly has the potential to exert a significant effect on the maintenance and evolution of CSCs. Both HIF‑1α and HIF‑2α may contribute to the regulation of cellular adaptation to hypoxia and resistance to cancer therapies. This review provides an overview of the roles of HIFs in CSCs. HIF‑1α and HIF‑2α have significant prognostic and predictive value in the clinic and the concept of personalized medicine should be applied in designing clinical trials for HIF inhibitors.
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Affiliation(s)
- Wei-Wei Tong
- Department of Laboratory Medicine, Shengjing Affiliated Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Guang-Hui Tong
- Department of Laboratory Medicine, Shengjing Affiliated Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yong Liu
- Department of Laboratory Medicine, Shengjing Affiliated Hospital, China Medical University, Shenyang, Liaoning 110004, P.R. China
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246
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p53 and glucose metabolism: an orchestra to be directed in cancer therapy. Pharmacol Res 2018; 131:75-86. [DOI: 10.1016/j.phrs.2018.03.015] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/23/2018] [Accepted: 03/20/2018] [Indexed: 12/14/2022]
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247
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Almendros I, Martínez-García MÁ, Campos-Rodríguez F, Riveiro-Falkenbach E, Rodríguez-Peralto JL, Nagore E, Martorell-Calatayud A, Hernández Blasco L, Bañuls Roca J, Chiner Vives E, Sánchez-de-la-Torre A, Abad-Capa J, Montserrat JM, Pérez-Gil A, Cabriada-Nuño V, Cano-Pumarega I, Corral-Peñafiel J, Diaz-Cambriles T, Mediano O, Dalmau-Arias J, Farré R, Gozal D. Intermittent Hypoxia Is Associated With High Hypoxia Inducible Factor-1α but Not High Vascular Endothelial Growth Factor Cell Expression in Tumors of Cutaneous Melanoma Patients. Front Neurol 2018; 9:272. [PMID: 29755400 PMCID: PMC5932170 DOI: 10.3389/fneur.2018.00272] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 04/06/2018] [Indexed: 01/04/2023] Open
Abstract
Epidemiological associations linking between obstructive sleep apnea and poorer solid malignant tumor outcomes have recently emerged. Putative pathways proposed to explain that these associations have included enhanced hypoxia inducible factor (HIF)-1α and vascular endothelial growth factor (VEGF) cell expression in the tumor and altered immune functions via intermittent hypoxia (IH). Here, we examined relationships between HIF-1α and VEGF expression and nocturnal IH in cutaneous melanoma (CM) tumor samples. Prospectively recruited patients with CM tumor samples were included and underwent overnight polygraphy. General clinical features, apnea–hypopnea index (AHI), desaturation index (DI4%), and CM characteristics were recorded. Histochemical assessments of VEGF and HIF-1α were performed, and the percentage of positive cells (0, <25, 25–50, 51–75, >75%) was blindly tabulated for VEGF expression, and as 0, 0–5.9, 6.0–10.0, >10.0% for HIF-1α expression, respectively. Cases with HIF-1α expression >6% (high expression) were compared with those <6%, and VEGF expression >75% of cells was compared with those with <75%. 376 patients were included. High expression of VEGF and HIF-1α were seen in 88.8 and 4.2% of samples, respectively. High expression of VEGF was only associated with increasing age. However, high expression of HIF-1α was significantly associated with age, Breslow index, AHI, and DI4%. Logistic regression showed that DI4% [OR 1.03 (95% CI: 1.01–1.06)] and Breslow index [OR 1.28 (95% CI: 1.18–1.46)], but not AHI, remained independently associated with the presence of high HIF-1α expression. Thus, IH emerges as an independent risk factor for higher HIF-1α expression in CM tumors and is inferentially linked to worse clinical CM prognostic indicators.
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Affiliation(s)
- Isaac Almendros
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | | | - Erica Riveiro-Falkenbach
- Pathology Department, Medical School, Universidad Complutense, Instituto i + 12, Hospital Universitario 12 de Octubre, CIBERONC, Madrid, Spain
| | - José L Rodríguez-Peralto
- Pathology Department, Medical School, Universidad Complutense, Instituto i + 12, Hospital Universitario 12 de Octubre, CIBERONC, Madrid, Spain
| | - Eduardo Nagore
- Dermatology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | | | - Luis Hernández Blasco
- Respiratory Department, ISABIAL, Hospital Gral, Univ. Alicante, Alicante, Spain.,Departamento Medicina Clinica, Univ. Miguel Hernandez, Elche, Spain
| | - Jose Bañuls Roca
- Respiratory Department, ISABIAL, Hospital Gral, Univ. Alicante, Alicante, Spain.,Departamento Medicina Clinica, Univ. Miguel Hernandez, Elche, Spain
| | | | - Alicia Sánchez-de-la-Torre
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Respiratory Department, Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, Lleida, Spain
| | - Jorge Abad-Capa
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Respiratory Department, Hospital Germans Trias i Pujol, Centro de investigacion Biomedica, Madrid, Spain
| | - Josep Maria Montserrat
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Respiratory Department, Hospital Clinic-IDIBAPS, Barcelona, Spain
| | | | | | | | - Jaime Corral-Peñafiel
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Respiratory Department, Hospital Universitario S. Pedro Alcántara, Cáceres, Spain
| | | | - Olga Mediano
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Respiratory Department, Hospital Universitario de Guadalajara, CIBER de enfermedades respiratorias, Madrid, Spain
| | - Joan Dalmau-Arias
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Ramon Farré
- Unitat de Biofísica i Bioenginyeria, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - David Gozal
- Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL, United States
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248
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Transcriptome profiling of the interconnection of pathways involved in malignant transformation and response to hypoxia. Oncotarget 2018; 9:19730-19744. [PMID: 29731978 PMCID: PMC5929421 DOI: 10.18632/oncotarget.24808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 02/24/2018] [Indexed: 11/25/2022] Open
Abstract
In tumor tissues, hypoxia is a commonly observed feature resulting from rapidly proliferating cancer cells outgrowing their surrounding vasculature network. Transformed cancer cells are known to exhibit phenotypic alterations, enabling continuous proliferation despite a limited oxygen supply. The four-step isogenic BJ cell model enables studies of defined steps of tumorigenesis: the normal, immortalized, transformed, and metastasizing stages. By transcriptome profiling under atmospheric and moderate hypoxic (3% O2) conditions, we observed that despite being highly similar, the four cell lines of the BJ model responded strikingly different to hypoxia. Besides corroborating many of the known responses to hypoxia, we demonstrate that the transcriptome adaptation to moderate hypoxia resembles the process of malignant transformation. The transformed cells displayed a distinct capability of metabolic switching, reflected in reversed gene expression patterns for several genes involved in oxidative phosphorylation and glycolytic pathways. By profiling the stage-specific responses to hypoxia, we identified ASS1 as a potential prognostic marker in hypoxic tumors. This study demonstrates the usefulness of the BJ cell model for highlighting the interconnection of pathways involved in malignant transformation and hypoxic response.
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249
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Tátrai E, Bartal A, Gacs A, Paku S, Kenessey I, Garay T, Hegedűs B, Molnár E, Cserepes MT, Hegedűs Z, Kucsma N, Szakács G, Tóvári J. Cell type-dependent HIF1 α-mediated effects of hypoxia on proliferation, migration and metastatic potential of human tumor cells. Oncotarget 2018; 8:44498-44510. [PMID: 28562340 PMCID: PMC5546497 DOI: 10.18632/oncotarget.17806] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/24/2017] [Indexed: 12/19/2022] Open
Abstract
Tumor hypoxia promotes neoangiogenesis and contributes to the radio- and chemotherapy resistant and aggressive phenotype of cancer cells. However, the migratory response of tumor cells and the role of small GTPases regulating the organization of cytoskeleton under hypoxic conditions have yet to be established. Accordingly, we measured the proliferation, migration, RhoA activation, the mRNA and protein levels of hypoxia inducible factor-1alpha (HIF-1α) and three small G-proteins, Rac1, cdc42 and RhoA in a panel of five human tumor cell lines under normoxic and hypoxic conditions. Importantly, HT168-M1 human melanoma cells with high baseline migration capacity showed increased HIF-1α and small GTPases expression, RhoA activation and migration under hypoxia. These activities were blocked by anti- HIF-1α shRNA. Moreover, the in vivo metastatic potential was promoted by hypoxia mimicking CoCl2 treatment and reduced upon inhibition of HIF-1α in a spleen to liver colonization experiment. In contrast, HT29 human colon cancer cells with low migration capacity showed limited response to in vitro hypoxia. The expression of the small G-proteins decreased both at mRNA and protein levels and the RhoA activation was reduced. Nevertheless, the number of lung or liver metastatic colonies disseminating from orthotopic HT29 grafts did not change upon CoCl2 or chetomin treatment. Our data demonstrates that the hypoxic environment induces cell-type dependent changes in the levels and activation of small GTPases and results in varying migratory and metastasis promoting responses in different human tumor cell lines.
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Affiliation(s)
- Enikő Tátrai
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Alexandra Bartal
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary.,Central Pharmacy, National Institute of Oncology, Budapest, Hungary
| | - Alexandra Gacs
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Sándor Paku
- st Institute of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.,Tumor Progression Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary
| | - István Kenessey
- nd Department of Pathology, Semmelweis University, Budapest, Hungary.,National Cancer Registry, National Institute of Oncology, Budapest, Hungary
| | - Tamás Garay
- nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Balázs Hegedűs
- Tumor Progression Research Group, Hungarian Academy of Sciences, Semmelweis University, Budapest, Hungary.,Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,Department of Thoracic Surgery, Ruhrlandklinik, University Duisburg-Essen, Essen, Germany
| | - Eszter Molnár
- nd Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Mihály T Cserepes
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary.,Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.,Semmelweis University, Budapest, Hungary
| | - Zita Hegedűs
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Nóra Kucsma
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Gergely Szakács
- Institute of Enzymology, Research Center for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
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250
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Hemoglobin level trajectories in the early treatment period are related with survival outcomes in patients with breast cancer. Oncotarget 2018; 8:1569-1579. [PMID: 27906669 PMCID: PMC5352078 DOI: 10.18632/oncotarget.13679] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 11/08/2016] [Indexed: 12/19/2022] Open
Abstract
Hemoglobin (Hb) levels are reportedly related with treatment outcomes and survival in patients of breast cancer. However, the long-term change in Hb levels after treatment and the effects of Hb on survival remain unknown. This retrospective cohort study enrolled 1931 breast cancer patients with pathological stage I-IV between 1/1/2003 and 12/31/2013. Latent class modeling was used to identify trajectories in monthly Hb levels over time. The primary endpoint was 10-year cancer-related death. We identified 5 distinct Hb trajectories: persistent anemia (5.6 %; n = 109), improved anemia (4.8 %, n = 93), mild anemia (21.0%; n = 406), low normal Hb (46.6 %; n = 899), and normal Hb (21.9%; n = 424). Compared with the normal-Hb group, trajectories with low Hb levels had worst 10-year survival. The adjusted hazard ratios were 1.79(95% CI, 0.91-3.53) for the improved anemia group, 1.09(95% CI, 0.68-1.74) for the mild anemia group, 1.06 (95% CI, 0.71-1.60) for the low normal Hb group, and 2.19(95% CI 1.28-3.75) for the persistent anemia group. Our findings show there are five Hb level trajectories during breast cancer treatment. The anemia Hb level trajectory during the first 12 months after treatment reflect the worst cancer-related 10-year survival in breast cancer patients.
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