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Zhang J, Li C, Sun L, Sun D, Zhao T. P53‑microRNA interactions regulate the response of colorectal tumor cells to oxaliplatin under normoxic and hypoxic conditions. Oncol Rep 2023; 50:219. [PMID: 37921068 PMCID: PMC10636723 DOI: 10.3892/or.2023.8656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/03/2022] [Indexed: 11/04/2023] Open
Abstract
Oxaliplatin (OXA)‑containing regimens are used as first‑line chemotherapy in colorectal cancer (CRC). However, OXA resistance remains a major challenge in CRC treatment. CRC cells that adapt to hypoxia can potentially develop OXA resistance, and the underlying molecular mechanisms still need to be further investigated. In the current study, the OXA drug sensitivity of two CRC cell lines, HCT116 (TP53WT) and HT29 (TP53MT), was compared under both normoxic and hypoxic conditions. It was found that under normoxic condition, HCT116 cells showed significantly higher OXA sensitivity than HT29 cells. However, both cell lines showed remarkable OXA resistance under hypoxic conditions. It was also revealed that P53 levels were increased after OXA and hypoxia treatment in HCT116 cells but not in HT29 cells. Notably, knocking down P53WT decreased normoxic but increased hypoxic OXA sensitivity in HCT116 cells, which did not exist in HT29 cells. Molecular analysis indicated that P53WT activated microRNA (miR)‑26a and miR‑34a in OXA treatment and activated miR‑23a in hypoxia treatment. Cell proliferation experiments indicated that a high level of miR‑23a decreased OXA sensitivity and that a high level of miR‑26a or miR‑34a increased OXA sensitivity in HCT116 cells. Additionally, it was demonstrated that miR‑26a, miR‑34a and miR‑23a affect cell apoptosis through regulation of MCL‑1, EZH2, BCL‑2, SMAD 4 and STAT3. Taken together, the present findings revealed the dual function of P53 in regulating cellular chemo‑sensitivity and highlighted the role of P53‑miR interactions in the response of CRC cells to OXA chemotherapy under normoxic and hypoxic conditions.
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Affiliation(s)
- Jiayu Zhang
- Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Chenguang Li
- Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Luanbiao Sun
- Gastrointestinal Colorectal and Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Denghua Sun
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Tiancheng Zhao
- Department of Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
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2
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Allison M, Caramés-Méndez P, Hofmann BJ, Pask CM, Phillips RM, Lord RM, McGowan PC. Cytotoxicity of Ruthenium(II) Arene Complexes Containing Functionalized Ferrocenyl β-Diketonate Ligands. Organometallics 2023; 42:1869-1881. [PMID: 37592952 PMCID: PMC10428205 DOI: 10.1021/acs.organomet.2c00553] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Indexed: 08/19/2023]
Abstract
The synthesis and characterization of 24 ruthenium(II) arene complexes of the type [(p-cym)RuCl(Fc-acac)] (where p-cym = p-cymene and Fc-acac = functionalized ferrocenyl β-diketonate ligands) are reported, including single-crystal X-ray diffraction for 21 new complexes. Chemosensitivity studies have been conducted against human pancreatic carcinoma (MIA PaCa-2), human colorectal adenocarcinoma p53-wildtype (HCT116 p53+/+) and normal human retinal epithelial cell lines (APRE-19). The most active complex, which contains a 2-furan-substituted ligand (4), is 5x more cytotoxic than the analogs 3-furan complex (5) against MIA PaCa-2. Several complexes were screened under hypoxic conditions and at shorter-time incubations, and their ability to damage DNA was determined by the comet assay. Compounds were also screened for their potential to inhibit the growth of both bacterial and fungal strains.
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Affiliation(s)
- Matthew Allison
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Pablo Caramés-Méndez
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
- Department
of Pharmacy, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - Benjamin J. Hofmann
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
| | - Christopher M. Pask
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Roger M. Phillips
- Department
of Pharmacy, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - Rianne M. Lord
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Patrick C. McGowan
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
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3
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Wang J, Nie D. Interaction of pregnane X receptor with hypoxia-inducible factor-1 regulates chemoresistance of prostate cancer cells. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2023; 6:378-389. [PMID: 37457130 PMCID: PMC10344723 DOI: 10.20517/cdr.2023.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/01/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023]
Abstract
Aim: The nuclear pregnane X receptor (PXR) is a pivotal regulator of steroid and xenobiotics metabolism and plays an important role in shaping tumor cell responses to chemotherapy. Hypoxia within tumor tissue has multifaceted effects, including multiple drug resistance. The goal of this study was to determine whether PXR contributes to hypoxia-induced drug resistance. Methods: Metastatic prostate cancer cells were used to study the interaction of PXR and hypoxia-inducible factor-1 (HIF-1 in drug resistance associated with hypoxia. The activities of PXR and HIF-1 were determined by assays for its reporter gene or target gene expression. Co-immunoprecipitation (Co-IP) was used to determine the interaction of PXR and HIF-1. Ablation or inhibition of PXR or HIF-1 was used to determine their roles in hypoxia-induced chemoresistance. Results: PXR was activated by hypoxia, leading to increased expression of multidrug resistance protein 1 (MDR1). Inhibition of PXR by pharmacological compounds or depletion by shRNAs reduced the hypoxic induction of MDR1 and sensitized prostate cancer cells to chemotherapy under hypoxia. HIF-1 was required for PXR activation under hypoxia. Co-immunoprecipitation results showed that HIF-1 and PXR could physically interact with each other, leading to crosstalk between these two transcription factors. Conclusion: PXR contributes to hypoxia-induced drug resistance in prostate cancer cells through its interaction with HIF-1.
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Affiliation(s)
- Jiuhui Wang
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, IL 62794, USA
| | - Daotai Nie
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University School of Medicine, Springfield, IL 62794, USA
- Simmons Cancer Institute, Southern Illinois University School of Medicine, Springfield, IL 62794, USA
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4
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Imran Khan M. Exploration of metabolic responses towards hypoxia mimetic DMOG in cancer cells by using untargeted metabolomics. Saudi J Biol Sci 2022; 29:103426. [PMID: 36091722 PMCID: PMC9460158 DOI: 10.1016/j.sjbs.2022.103426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/17/2022] [Accepted: 08/17/2022] [Indexed: 11/30/2022] Open
Abstract
Hypoxia is considered as one of the most crucial elements of tumor microenvironment. The hypoxia inducible transcription factors (HIF-1/2) are used by the cancer cells to adapt hypoxic microenvironment through regulating the expression of various target genes, including metabolic enzymes. Dimethyloxalylglycine (DMOG), a hypoxic mimetic used for HIF stabilisation in cell and animal models, also demonstrates multiple metabolic effects. In past, it was shown that in cancer cells, DMOG treatment alters mitochondrial ATP production, glycolysis, respiration etc. However, a global landscape of metabolic level alteration in cancer cells during DMOG treatment is still not established. In the current work, the metabolic landscape of cancer cells during DMOG treatment is explored by using untargeted metabolomics approach. Results showed that DMOG treatment primarily alters the one carbon and lipid metabolism. The levels of one-carbon metabolism related metabolites like serine, ornithine, and homomethionine levels significantly altered during DMOG treatment. Further, DMOG treatment reduces the global fatty acyls like palmitic acids, stearic acids, and arachidonic acid levels in cancer cell lines. Additionally, we found an alteration in glycolytic metabolites known to be regulated by hypoxia in cancer cell lines. Collectively, the results provided novel insights into the metabolic impact of DMOG on cancer cells and showed that the use of DMOG to induce hypoxia yields similar metabolic features relative to physiological hypoxia.
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Affiliation(s)
- Mohammad Imran Khan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Centre of Artificial Intelligence for Precision Medicines, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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5
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Weng X, Liu H, Ruan J, Du M, Wang L, Mao J, Cai Y, Lu X, Chen W, Huang Y, Zhi X, Shan J. HOTAIR/miR-1277-5p/ZEB1 axis mediates hypoxia-induced oxaliplatin resistance via regulating epithelial-mesenchymal transition in colorectal cancer. Cell Death Dis 2022; 8:310. [PMID: 35798695 PMCID: PMC9263107 DOI: 10.1038/s41420-022-01096-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 06/03/2022] [Accepted: 06/20/2022] [Indexed: 01/19/2023]
Abstract
The hypoxic microenvironment contributes to the chemoresistance of many malignant tumors including colorectal cancer (CRC). Accumulating studies have indicated that long non-coding RNAs (lncRNAs) play important roles in chemotherapy resistance. In this study, we aimed to determine the effect of lncRNAs in hypoxia-mediated resistance in CRC and its potential mechanism. Here, we discovered that hypoxia-induced oxaliplatin resistance and HOX transcript antisense RNA (HOTAIR) expression was increased in hypoxia-treated CRC cell lines and CRC tumors. Knockdown of HOTAIR by siRNA reduced the viability and proliferation of CRC cells treated with oxaliplatin and reversed hypoxia-induced resistance. Mechanically, we found that HOTAIR modulates zinc finger E-box binding homeobox 1 (ZEB1) expression by negative regulations of miR-1277-5p. When miR-1277-5p was silenced, knockdown of HOTAIR was unable to reduce the oxaliplatin resistance in CRC cells. In mouse models of CRC, HOTAIR knockdown markedly inhibited the tumor growth when treated with oxaliplatin. Thus, HOTAIR/miR-1277-5p/ZEB1 axis appears a promising therapeutic target for improving the oxaliplatin efficacy in CRC.
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Affiliation(s)
- Xingyue Weng
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Hao Liu
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Jian Ruan
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Miaoyan Du
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Lingjie Wang
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Jiayan Mao
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Ying Cai
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Xuemei Lu
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Wei Chen
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, Zhejiang, China
| | - Yaqing Huang
- Reproductive Medicine Center, Department of Gynecology and Obstetrics, Zhejiang Provincial Peoples Hospital, Affiliated Peoples Hospital, Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China
| | - Xiao Zhi
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
| | - Jianzhen Shan
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
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Malik R, Rafli R, Salmi S, Noer YA. Relationship of Sleep Quality and Oxidative Stress Level in Smartphone Users; Study in Faculty of Medicine Student, Universitas Baiturrahmah. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Excessive smartphones can affect sleep quality, reducing sleep duration. This lack of sleep will impact various health and increase levels of free radicals in the body, affecting various cell functions.
AIM: The aim of the study was to measure the relationship between sleep quality due to smartphone use and serum malondialdehyde (MDA) levels.
MATERIALS AND METHODS: This was a quasi-experimental with pre- and post-test group study. Sleep quality was assessed with Pittsburgh Sleep Quality Index (PSQI), and the smartphone addiction was assessed based on Smartphone Addiction Scale (SAS) score. The subjects were divided into four groups (n = 6) based on their PSQI and SAS score. The first group was the subjects with normal sleep and non-smartphone addict. The second group was the subjects with normal sleep but smartphone addict. The third group was the subjects with abnormal sleep and non-smartphone addict. Furthermore, fourth was the subjects with abnormal sleep and smartphone addiction. All the subjects were asked to sleep usually and used the smartphone as necessary a day before the study started. Blood plasma was collected from the subject before and after the study for MDA measurement. Plasma MDA was determined using the thiobarbituric acid test.
RESULTS: Smartphone use can reduce sleep quality and duration, resulting in sleep deprivation. There was no increase in MDA concentration (p > 0.05) in the ordinary and non-addictive or smartphone-addicted sleep group. Meanwhile, the group that stayed up late and was neither addictive nor addictive showed an increase in MDA levels and was statistically significant (p < 0.05).
CONCLUSION: Adequate sleep can reduce blood serum MDA levels and smartphone use does not affect MDA levels.
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7
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Tian L, Shao M, Gong Y, Wei T, Zhu Y, Chao Y, Liu Z. Epigenetic Platinum Complexes Breaking the "Eat Me/Don't Eat Me" Balance for Enhanced Cancer Chemoimmunotherapy. Bioconjug Chem 2022; 33:343-352. [PMID: 35040313 DOI: 10.1021/acs.bioconjchem.1c00576] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Platinum complexes, despite being the most successful organometallic anticancer chemotherapy drugs, still suffer from serious side effects and therapy resistance. Inspired by the immunomodulation effect of platinum drugs, an epigenetic platinum(IV) complex was synthesized for enhanced cancer chemoimmunotherapy by conjugating oxidized oxaliplatin (OXA) with 2-bromo-1-(3,3-dinitro-1-azetidinyl)ethenone (RRx-001), the latter of which as a nitric oxide (NO) donor is also an epigenetic agent. The obtained complex (named OXA-NO) could significantly increase the level of "eat me" signal CRT expression and decrease the level of "don't eat me" signal CD47 expression on cancer cell membranes to promote their phagocytosis by macrophages. In addition, OXA-NO could release nitric oxide to trigger the transformation of pro-tumorigenic M2-type macrophages into antitumor M1-type macrophages within the tumor to reverse the immunosuppressive tumor microenvironment. Compared to commercial OXA, OXA-NO exhibited much stronger tumor growth inhibition ability and was much better tolerated, with obviously weakened side effects observed in spleen, lung, and kidneys. Therefore, this epigenetic platinum(IV) complex that exhibits excellent therapeutic efficacy and safety has great potential in the clinic.
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Affiliation(s)
- Longlong Tian
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China.,Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China.,Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Ming Shao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yimou Gong
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
| | - Ting Wei
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yujie Zhu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yu Chao
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
| | - Zhuang Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, Jiangsu 215123, China
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8
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Kaur G, Doroshow JH, Teicher BA. Format (2D vs 3D) and media effect target expression and response of patient-derived and standard NSCLC lines to EGFR inhibitors. Cancer Treat Res Commun 2021; 29:100463. [PMID: 34601320 DOI: 10.1016/j.ctarc.2021.100463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 10/20/2022]
Abstract
Three patient-derived NSCLC lines and three well-established NSCLC lines with varied EGFR gene status were compared for expression of EGFR protein, proliferation and epithelial and mesenchymal markers in monolayer, simple spheroid and complex spheroid cultures. The effects of diverse culture conditions and exposure time on the response of the six NSCLC lines to the EGFR inhibitors erlotinib, afatinib, lapatinib, and osimertinib were examined. The clinical Cmax was used as the test concentration to determine whether cells were responsive or resistant to each agent. Among the patient-derived lines, LG0703-F948, which has an EGFR L858R mutation, was responsive to each of the four EGFR inhibitor when grown as spheroids but resistant when grown in monolayer. The HCC827 line, which carries an EGFR E746-A750 deletion, was responsive to each of the four EGFR inhibitors when grown as spheroids or monolayers. NCI-H1975 cells which have an EGFR T790M mutation and an EGFR L858R mutation, were sensitive to osimertinib when propagated as spheroids but not when grown in monolayer. The results suggest that the expression of cell surface targets and response to drugs targeting cell surface proteins varies depending upon cell culture format. These findings may help to explain, in part, the concordance or discordance between cell culture and in vivo findings in experimental systems.
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Affiliation(s)
- Gurmeet Kaur
- DCTD National Cancer Institute, Bethesda, MD, United States.
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Tanaka S, Hosokawa M, Miyamoto T, Nakagawa A, Haruna M, Ueda K, Iwakawa S, Ogawara KI. miR-33a-5p in small extracellular vesicles as non-invasive biomarker for oxaliplatin sensitivity in human colorectal cancer cells. Biochem Biophys Rep 2021; 26:100996. [PMID: 33898768 PMCID: PMC8058522 DOI: 10.1016/j.bbrep.2021.100996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 12/24/2022] Open
Abstract
microRNAs (miRNAs) contained in small extracellular vesicles (sEVs) are candidates for non-invasive biomarkers. Oxaliplatin (L-OHP) has been approved for advanced colorectal cancer (CRC) chemotherapy. However, the response to L-OHP differs among CRC patients. In addition, CRC cells often acquire the resistance to L-OHP. This study aimed at the prediction of L-OHP sensitivity by measuring extracellular miRNAs levels. Firstly, we compared intracellular miRNAs expressions in L-OHP-sensitive CRC cells (SW620 and HCT116 cells) with those in acquired and intrinsic L-OHP-resistant cells. In microarray and real-time RT-PCR analyses, the intracellular miR-33a-5p, miR-210–3p, and miR-224–5p expressions were lower in acquired and intrinsic L-OHP-resistant CRC cells than sensitive cells. Furthermore, in SW620 cells, L-OHP sensitivity was decreased by miR-33a-5p inhibitor. On the other hand, miR-210–3p or miR-224–5p inhibitor did not affect L-OHP sensitivity in SW620 cells. Secondly, the amount of miR-33a-5p, miR-210–3p, and miR-224–5p in sEVs was compared. The amount of miR-33a-5p and miR-210–3p in sEVs secreted from acquired and intrinsic L-OHP-resistant cells tended to be small. miR-224–5p was not detected in sEVs secreted from three types of CRC cells examined. To the best of our knowledge, this is the first study demonstrating that miR-33a-5p and/or miR-210–3p in sEVs would be candidates for biomarkers of L-OHP sensitivity. In particular, miR-33a-5p is a promising candidate because it would be directly involved in L-OHP sensitivity. miR-33a-5p was down-regulated in oxaliplatin-resistant colorectal cancer cells. Reduction of intracellular miR-33a-5p expression caused oxaliplatin resistance. miR-33a-5p amount in small extracellular vesicles from resistant cells was small. miR-33a-5p is a candidate for non-invasive biomarker of oxaliplatin sensitivity.
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Fu Y, Zhang Y, Cui J, Yang G, Peng S, Mi W, Yin X, Yu Y, Jiang J, Liu Q, Qin Y, Xu W. SNP rs12982687 affects binding capacity of lncRNA UCA1 with miR-873-5p: involvement in smoking-triggered colorectal cancer progression. Cell Commun Signal 2020; 18:37. [PMID: 32143722 PMCID: PMC7059387 DOI: 10.1186/s12964-020-0518-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 01/29/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND This investigation was arranged to elucidate whether single nucleotide polymorphisms (SNPs) of lncRNA UCA1 was implicated in elevating colorectal cancer (CRC) risk by interacting with environmental exposures. METHODS LncRNASNP database was firstly adopted to predict SNPs that possibly affected binding of UCA1 with miRNAs and then the interactive effect of SNPs and environmental exposure on CRC risk was evaluated by recurring to type 2 gene-environment interactions (GEI) model. Besides, MTT assay, colony formation assay, transwell assay and wound healing assay were performed to assess the activity of CRC cell lines which carried distinct genotypes of specific SNPs. The impact of nicotine on activity of CRC cells was also appraised. RESULTS SNP rs12982687 of UCA1 intervened in the binding capacity of UCA1 with several miRNAs, especially miR-873-5p. MiRNAs regulated by UCA1, as predicted by mirPath software, shared genes that were enriched in HIF1 signaling pathway. Moreover, homozygote TT of rs12982687 reduced CRC risk among smokers, and CRC cells that carried rs12982687 (CC) displayed strong migration and invasion. By contrast, miR-873-5p mimic, which reduced UCA1 expression, delayed metastasis of CRC cells (all P < 0.05). Additionally, nicotine not merely elevated UCA1 and HIF-1α expressions in CRC cells, but also facilitated proliferation and metastasis of CRC cells (P < 0.05). CONCLUSIONS SNP rs12982687 was involved in smoking-triggered CRC progression, given its influence on UCA1's binding with miR-873-5p and HIF-1 signaling.
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Affiliation(s)
- Yang Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China.
| | - Yizheng Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Jinyuan Cui
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Ge Yang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Sanfei Peng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Wunan Mi
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Xiangya Yin
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Yang Yu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Jianwu Jiang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Qi Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Zhengzhou City, 450052, Henan Province, China
| | - Yiyu Qin
- Research Centre of Biomedical Technology, Jiangsu Vocational College of Medicine, No. 283 Jianfang South Road, Yancheng City, Jiangsu Province, 224000, China.
| | - Wen Xu
- State Key Laboratory of Bioreactor Engineering & Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, No. 130 Meilong Road, Shanghai, 200237, China.
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11
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Afsar CU, Uysal P. HIF-1α Levels in patients receiving chemoradiotherapy for locally advanced non-small cell lung carcinoma. ACTA ACUST UNITED AC 2019; 65:1295-1299. [PMID: 31721962 DOI: 10.1590/1806-9282.65.10.1295] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/31/2019] [Indexed: 12/13/2022]
Abstract
AIM To examine the relationship between treatment response and hypoxia-inducible factor-1 alpha (HIF-1α) levels in patients with locally advanced non-small cell lung cancer (NSCLC) who received chemoradiotherapy (CRT). METHODS Eighty patients with NSCLC were included in the study and treated at Acibadem Mehmet Ali Aydınlar University Medical Faculty. HIF-1 α levels were measured before and after CRT by the enzyme-linked immunosorbent assay (ELISA) method. RESULTS Patients' stages were as follows; stage IIIA (65%) and stage IIIB (35%). Squamous histology was 45%, adenocarcinoma was 44%, and others were 11%. Chemotherapy and radiotherapy were given concurrently to 80 patients. Forty-five (56%) patients received cisplatin-based chemotherapy, and 35 (44%) received carboplatin-based chemotherapy. Serum HIF-1α levels (42.90 ± 10.55 pg/mL) after CRT were significantly lower than the pretreatment levels (63.10 ± 10.22 pg/mL, p<0.001) in patients with locally advanced NSCLC. CONCLUSION The results of this study revealed that serum HIF-1α levels decreased after CRT. Decrease of HIF-1α levels after the initiation of CRT may be useful for predicting the efficacy of CRT.
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Affiliation(s)
- Cigdem Usul Afsar
- . Acıbadem Mehmet Ali Aydınlar University Medical Faculty, Bakirkoy Acıbadem Hospital, Department of Internal Medicine and Medical Oncology, Istanbul, Turkey
| | - Pelin Uysal
- . Acıbadem Mehmet Ali Aydınlar University Medical Faculty, Atakent Acıbadem Hospital, Department of Pulmonary Medicine, Istanbul, Turkey
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12
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Sørensen O, Andersen AM, Larsen SG, Giercksky KE, Flatmark K. Intraperitoneal mitomycin C improves survival compared to cytoreductive surgery alone in an experimental model of high-grade pseudomyxoma peritonei. Clin Exp Metastasis 2019; 36:511-518. [PMID: 31541325 PMCID: PMC6834750 DOI: 10.1007/s10585-019-09991-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/10/2019] [Indexed: 12/16/2022]
Abstract
Pseudomyxoma peritonei (PMP) is a rare cancer commonly originating from appendiceal neoplasms that presents with mucinous tumor spread in the peritoneal cavity. Patients with PMP are treated with curative intent by cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). The value of adding HIPEC to CRS has not been proven in randomized trials, and the objective of this study was to investigate the efficacy of intraperitoneal mitomycin C (MMC) and regional hyperthermia as components of this complex treatment. Xenograft tissue established from a patient with histologically high-grade PMP with signet ring cell differentiation was implanted intraperitoneally in 65 athymic nude male rats and the animals were stratified into three treatment groups; the cytoreductive surgery group (CRSG, CRS only), the normothermic group (NG, CRS and intraperitoneal chemotherapy perfusion (IPEC) with MMC at 35 ºC), and the hyperthermic group (HG, CRS and IPEC at 41 ºC). The main endpoints were survival and tumor weight at autopsy. Adequate imitation of the clinical setting and treatment approach was achieved. The median survival was 31 days in the CRSG, 60 days in NG and 67 days in HG. The median tumor weights at autopsy were 34 g in CRSG, 23 g NG and 20 g in HG. In conclusion, the addition of IPEC with MMC after CRS doubled the survival time and reduced tumor growth compared to CRS alone. Adding regional hyperthermia resulted in a modest improvement of treatment outcome.
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Affiliation(s)
- Olaf Sørensen
- Department of Gastroenterological Surgery, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway
| | - Anders Mikal Andersen
- Department of Pharmacology, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway
| | - Stein Gunnar Larsen
- Department of Gastroenterological Surgery, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway
| | - Karl-Erik Giercksky
- Department of Gastroenterological Surgery, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway
- Norwegian Radium Hospital, Oslo University Hospital, University of Oslo, Montebello, 0310, Oslo, Norway
| | - Kjersti Flatmark
- Department of Gastroenterological Surgery, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway.
- Department of Tumor Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Montebello, 0310, Oslo, Norway.
- Norwegian Radium Hospital, Oslo University Hospital, University of Oslo, Montebello, 0310, Oslo, Norway.
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13
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Is Volatile Anesthesia During Cancer Surgery Likely to Increase the Metastatic Risk? Int Anesthesiol Clin 2018; 54:92-107. [PMID: 27623130 DOI: 10.1097/aia.0000000000000115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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14
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STAT3 but Not HIF-1α Is Important in Mediating Hypoxia-Induced Chemoresistance in MDA-MB-231, a Triple Negative Breast Cancer Cell Line. Cancers (Basel) 2017; 9:cancers9100137. [PMID: 29036915 PMCID: PMC5664076 DOI: 10.3390/cancers9100137] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 10/02/2017] [Accepted: 10/10/2017] [Indexed: 12/25/2022] Open
Abstract
Hypoxia-induced chemoresistance (HICR) is a well-recognized phenomenon, and in many experimental models, hypoxia inducible factor-1α (HIF-1α) is believed to be a key player. We aimed to better understand the mechanism underlying HICR in a triple negative breast cancer cell line, MDA-MB-231, with a focus on the role of HIF-1α. In this context, the effect of hypoxia on the sensitivity of MDA-MB-231 cells to cisplatin and their stem-like features was evaluated and the role of HIF-1α in both phenomena was assessed. Our results showed that hypoxia significantly increased MDA-MB-231 resistance to cisplatin. Correlating with this, intracellular uptake of cisplatin was significantly reduced under hypoxia. Furthermore, the stem-like features of MDA-MB-231 cells increased as evidenced by the significant increases in the expression of ATP-binding cassette (ABC) drug transporters, the proportion of CD44+/CD24− cells, clonogenic survival and cisplatin chemoresistance. Under hypoxia, both the protein level and DNA binding of HIF-1α was dramatically increased. Surprisingly, siRNA knockdown of HIF-1α did not result in an appreciable change to HICR. Instead, signal transducer and activator of transcription 3 (STAT3) activation was found to be important. STAT3 activation may confer HICR by upregulating ABC transporters, particularly ABCC2 and ABCC6. This study has demonstrated that, in MDA-MB-231 cells, STAT3 rather than HIF-1α is important in mediating HICR to cisplatin.
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Faloppi L, Del Prete M, Casadei Gardini A, Santini D, Silvestris N, Bianconi M, Giampieri R, Valgiusti M, Brunetti O, Bittoni A, Andrikou K, Lai E, Dessì A, Cascinu S, Scartozzi M. The correlation between LDH serum levels and clinical outcome in advanced biliary tract cancer patients treated with first line chemotherapy. Sci Rep 2016; 6:24136. [PMID: 27063994 PMCID: PMC4827080 DOI: 10.1038/srep24136] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/21/2016] [Indexed: 12/16/2022] Open
Abstract
LDH may represent an indirect marker of neo-angiogenesis and worse prognosis in many tumour types. We assessed the correlation between LDH and clinical outcome for biliary tract cancer (BTC) patients treated with first-line chemotherapy. Overall, 114 advanced BTC patients treated with first-line gemcitabine and cisplatin were included. Patients were divided into two groups (low vs. high LDH), according to pre-treatment LDH values. Patients were also classified according to pre- and post-treatment variation in LDH serum levels (increased vs. decreased). Median progression free survival (PFS) was 5.0 and 2.6 months respectively in patients with low and high pre-treatment LDH levels (p = 0.0042, HR = 0.56, 95% CI: 0.37–0.87). Median overall survival (OS) was 7.7 and 5.6 months (low vs. high LDH) (p = 0.324, HR = 0.81, 95% CI: 0.54–1.24). DCR was 71% vs. 43% (low vs. high LDH) (p = 0.002). In 38 patients with decreased LDH values after treatment, PFS and OS were respectively 6.2 and 12.1 months, whereas in 76 patients with post-treatment increased LDH levels, PFS and OS were respectively 3.0 and 5.1 months (PFS: p = 0.0009; HR = 0.49; 95% IC: 0.33–0.74; OS: p < 0.0001; HR = 0.42; 95% IC: 0.27–0.63). Our data seem to suggest that LDH serum level may predict clinical outcome in BTC patients receiving first-line chemotherapy.
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Affiliation(s)
- Luca Faloppi
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy.,Medical Oncology, University Hospital, University of Cagliari, Cagliari, Italy
| | - Michela Del Prete
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Andrea Casadei Gardini
- IRCCS, Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori, Meldola, Italy
| | - Daniele Santini
- Department of Medical Oncology, Campus Bio-Medico University of Rome, Roma, Italy
| | - Nicola Silvestris
- Medical Oncology Unit, Cancer Institute "Giovanni Paolo II", Bari, Italy
| | - Maristella Bianconi
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Riccardo Giampieri
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Martina Valgiusti
- IRCCS, Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori, Meldola, Italy
| | - Oronzo Brunetti
- Medical Oncology Unit, Cancer Institute "Giovanni Paolo II", Bari, Italy
| | - Alessandro Bittoni
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Kalliopi Andrikou
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Eleonora Lai
- Medical Oncology, University Hospital, University of Cagliari, Cagliari, Italy
| | - Alessandra Dessì
- Medical Oncology, University Hospital, University of Cagliari, Cagliari, Italy
| | - Stefano Cascinu
- Department of Medical Oncology, AOU "Ospedali Riuniti" - Università Politecnica delle Marche, Ancona, Italy
| | - Mario Scartozzi
- Medical Oncology, University Hospital, University of Cagliari, Cagliari, Italy
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16
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Aprile G, Giuliani F, Lutrino SE, Fontanella C, Bonotto M, Rihawi K, Fasola G. Maintenance Therapy in Colorectal Cancer: Moving the Artillery Down While Keeping an Eye on the Enemy. Clin Colorectal Cancer 2016; 15:7-15. [DOI: 10.1016/j.clcc.2015.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 07/29/2015] [Accepted: 08/10/2015] [Indexed: 01/26/2023]
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Armitage EG, Kotze HL, Allwood JW, Dunn WB, Goodacre R, Williams KJ. Metabolic profiling reveals potential metabolic markers associated with Hypoxia Inducible Factor-mediated signalling in hypoxic cancer cells. Sci Rep 2015; 5:15649. [PMID: 26508589 PMCID: PMC4623531 DOI: 10.1038/srep15649] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 10/01/2015] [Indexed: 01/02/2023] Open
Abstract
Hypoxia inducible factors (HIFs) plays an important role in oxygen compromised environments and therefore in tumour survival. In this research, metabolomics has been applied to study HIFs metabolic function in two cell models: mouse hepatocellular carcinoma and human colon carcinoma, whereby the metabolism has been profiled for a range of oxygen potentials. Wild type cells have been compared to cells deficient in HIF signalling to reveal its effect on cellular metabolism under normal oxygen conditions as well as low oxygen, hypoxic and anoxic environments. Characteristic responses to hypoxia that were conserved across both cell models involved the anti-correlation between 2-hydroxyglutarate, 2-oxoglutarate, fructose, hexadecanoic acid, hypotaurine, pyruvate and octadecenoic acid with 4-hydroxyproline, aspartate, cysteine, glutamine, lysine, malate and pyroglutamate. Further to this, network-based correlation analysis revealed HIF specific pathway responses to each oxygen condition that were also conserved between cell models. From this, 4-hydroxyproline was revealed as a regulating hub in low oxygen survival of WT cells while fructose appeared to be in HIF deficient cells. Pathways surrounding these hubs were built from the direct connections of correlated metabolites that look beyond traditional pathways in order to understand the mechanism of HIF response to low oxygen environments.
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Affiliation(s)
- Emily G Armitage
- School of Chemical Engineering and Analytical Science, Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK
| | - Helen L Kotze
- School of Chemical Engineering and Analytical Science, Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK
| | - J William Allwood
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK
| | - Warwick B Dunn
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, The University of Manchester, Manchester M13 9PL, UK.,Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, York Place, off Oxford Road, Manchester M13 9WL, UK
| | - Royston Goodacre
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK
| | - Kaye J Williams
- Manchester Pharmacy School, University of Manchester, Oxford Road, Manchester M13 9PT, UK
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Schreiber-Brynzak E, Klapproth E, Unger C, Lichtscheidl-Schultz I, Göschl S, Schweighofer S, Trondl R, Dolznig H, Jakupec MA, Keppler BK. Three-dimensional and co-culture models for preclinical evaluation of metal-based anticancer drugs. Invest New Drugs 2015; 33:835-47. [PMID: 26091914 DOI: 10.1007/s10637-015-0260-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/02/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Hypoxic and necrotic regions that accrue within solid tumors in vivo are known to be associated with metastasis formation, radio- and chemotherapy resistance, and drug metabolism. Therefore, integration of these tumor characteristics into in vitro drug screening models is advantageous for any reliable investigation of the anticancer activity of novel drug candidates. In general, usage of cell culture models with in vivo like characteristics has become essential in preclinical drug studies and allows evaluation of complex problems such as tumor selectivity and anti-invasive properties of the drug candidates. MATERIALS AND METHODS In this study, we investigated the anticancer activity of clinically approved, investigational and experimental drugs based on platinum (cisplatin, oxaliplatin and KP1537), gallium (KP46), ruthenium (KP1339) and lanthanum (KP772) in different cell culture models such as monolayers, multicellular spheroids, as well as invasion and metastasis models. Results Application of the Alamar Blue assay to multicellular spheroids and a spheroid-based invasion assay resulted in an altered rating of compounds with regard to their cytotoxicity and ability to inhibit invasion when compared with monolayer-based cytotoxicity and transwell assays. For example, the gallium-based drug candidate KP46 showed in spheroid cultures significantly enhanced properties to inhibit protrusion formation and fibroblast mediated invasiveness, and improved cancer cell selectivity. CONCLUSION Taken together, our results demonstrate the advantages of spheroid-based assays and underline the necessity of using different experimental models for reliable preclinical investigations assessing and better predicting the anticancer potential of new compounds.
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Affiliation(s)
- Ekaterina Schreiber-Brynzak
- University of Vienna, Faculty of Chemistry, Institute of Inorganic Chemistry, Waehringer Str. 42, A-1090, Vienna, Austria
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Doktorova H, Hrabeta J, Khalil MA, Eckschlager T. Hypoxia-induced chemoresistance in cancer cells: The role of not only HIF-1. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2015; 159:166-77. [PMID: 26001024 DOI: 10.5507/bp.2015.025] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/07/2015] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The aim of this review is to provide the information about molecular basis of hypoxia-induced chemoresistance, focusing on the possibility of diagnostic and therapeutic use. RESULTS Hypoxia is a common feature of tumors and represents an independent prognostic factor in many cancers. It is the result of imbalances in the intake and consumption of oxygen caused by abnormal vessels in the tumor and the rapid proliferation of cancer cells. Hypoxia-induced resistance to cisplatin, doxorubicin, etoposide, melphalan, 5-flouoruracil, gemcitabine, and docetaxel has been reported in a number of experiments. Adaptation of tumor cells to hypoxia has important biological effects. The most studied factor responsible for these effects is hypoxia-inducible factor-1 (HIF-1) that significantly contributes to the aggressiveness and chemoresistance of different tumors. The HIF-1 complex, induced by hypoxia, binds to target genes, thereby increasing the expression of many genes. In addition, the expression of hundreds of genes can be also decreased in response to hypoxia in HIF-1 dependent manner, but without the detection of HIF-1 in these genes' promoters. HIF-1 independent mechanisms for drug resistance in hypoxia have been described, however, they are still rarely reported. The first clinical studies focusing on diagnosis of hypoxia and on inhibition of hypoxia-induced changes in cancer cells are starting to yield results. CONCLUSIONS The adaptation to hypoxia requires many genetic and biochemical responses that regulate one another. Hypoxia-induced resistance is a very complex field and we still know very little about it. Different approaches to circumvent hypoxia in tumors are under development.
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Affiliation(s)
- Helena Doktorova
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and University Hospital Motol, Prague, Czech Republic
| | - Jan Hrabeta
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and University Hospital Motol, Prague, Czech Republic
| | - Mohamed Ashraf Khalil
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and University Hospital Motol, Prague, Czech Republic
| | - Tomas Eckschlager
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and University Hospital Motol, Prague, Czech Republic
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Bergamo A, Sava G. Linking the future of anticancer metal-complexes to the therapy of tumour metastases. Chem Soc Rev 2015; 44:8818-35. [DOI: 10.1039/c5cs00134j] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cancer chemotherapy is almost always applied to patients with one or more diagnosed metastases and is expected to impact these lesions, thus providing significant benefits to the patient.
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Affiliation(s)
| | - Gianni Sava
- Callerio Foundation Onlus
- 34127 Trieste
- Italy
- Department of Life Sciences
- University of Trieste
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21
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Hypoxia promotes 786-O cells invasiveness and resistance to sorafenib via HIF-2α/COX-2. Med Oncol 2014; 32:419. [PMID: 25487445 DOI: 10.1007/s12032-014-0419-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 11/27/2014] [Indexed: 10/24/2022]
Abstract
Accumulating evidences indicated that hypoxia-induced factors and COX-2 play a important role in tumorigenesis in various human cancer. Yet, the relationship between HIFs and COX-2 in human renal cancer remains unclear. The present study was to examine the role of HIFs and COX-2 in the invasiveness and the resistance to target agent in renal cancer cell line (786-O). In 786-O cells, hypoxia induced the increase in the protein expression of HIF1 and HIF2. We also demonstrate that hypoxia up-regulated the protein expression of COX-2 and Snail, but down-regulation of E-cadherin expression in 786-O cells promoted the invasiveness of 786-O cells and enhanced the resistance of 786-O cells to sorafenib. siRNA target to HIF1α, HIF2α and NS398, a selective inhibitor of COX-2, were used in this study. Only siRNA-HIF2α significantly suppressed the protein expression of HIF2 and COX-2, then decreased the invasive ability and resistance of 786-O cells to sorafenib under hypoxia. NS398 attenuated the increase in invasive cells number and the IC50 value of sorafenib induced by hypoxia. In conclusion, our results demonstrated that hypoxia promoted the invasiveness and resistance of 786-O cells to sorafenib via HIF2 and COX-2 and induced the activation of Snail/E-cadherin, suggesting that a signalling mechanism involving HIF2/COX2 modulates invasiveness and resistance to sorafenib in 786-O cells under hypoxia.
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22
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Jordheim LP, Cros-Perrial E, Matera EL, Bouledrak K, Dumontet C. Expression of domains for protein-protein interaction of nucleotide excision repair proteins modifies cancer cell sensitivity to platinum derivatives and genomic stability. Clin Exp Pharmacol Physiol 2014; 41:817-24. [DOI: 10.1111/1440-1681.12282] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 06/19/2014] [Accepted: 06/21/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Lars Petter Jordheim
- Université de Lyon; Lyon France
- Université de Lyon 1; Lyon France
- Cancer Research Center in Lyon; INSERM U1052; Lyon France
- Cancer Research Center in Lyon; CNRS UMR 5286; Lyon France
| | - Emeline Cros-Perrial
- Université de Lyon; Lyon France
- Université de Lyon 1; Lyon France
- Cancer Research Center in Lyon; INSERM U1052; Lyon France
- Cancer Research Center in Lyon; CNRS UMR 5286; Lyon France
| | - Eva-Laure Matera
- Université de Lyon; Lyon France
- Université de Lyon 1; Lyon France
- Cancer Research Center in Lyon; INSERM U1052; Lyon France
- Cancer Research Center in Lyon; CNRS UMR 5286; Lyon France
| | - Karima Bouledrak
- Université de Lyon; Lyon France
- Université de Lyon 1; Lyon France
- Cancer Research Center in Lyon; INSERM U1052; Lyon France
- Cancer Research Center in Lyon; CNRS UMR 5286; Lyon France
| | - Charles Dumontet
- Université de Lyon; Lyon France
- Université de Lyon 1; Lyon France
- Cancer Research Center in Lyon; INSERM U1052; Lyon France
- Cancer Research Center in Lyon; CNRS UMR 5286; Lyon France
- Hematology Department; Hospices Civils de Lyon; Pierre Bénite France
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Bryant JL, Meredith SL, Williams KJ, White A. Targeting hypoxia in the treatment of small cell lung cancer. Lung Cancer 2014; 86:126-32. [PMID: 25201720 DOI: 10.1016/j.lungcan.2014.08.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 08/08/2014] [Accepted: 08/11/2014] [Indexed: 12/17/2022]
Abstract
Small cell lung cancer (SCLC) is an extremely aggressive disease for which minimal therapeutic improvements have been made over the last few decades. Patients still rely on non-targeted, chemotherapeutic drugs complemented by irradiation. Although initial response is very good, the majority of SCLC patients invariably relapse with therapy-resistant tumours. Despite the link between pathologically low oxygen levels and therapy resistant tumours, hypoxia has gained little attention in the development of novel therapies for SCLC. In contrast, the advantages of targeting hypoxic cells in many other cancer types have been studied extensively. This review describes the reasons for targeting hypoxia in SCLC and outlines strategies undertaken to enhance hypoxic tumour cell death, including the use of bioreductive prodrugs, the targeting of HIF-1α and the induction of cell death through acidosis. Therapy directed towards hypoxic tumour regions has the potential to greatly enhance the response of SCLC tumours to current treatment regimens and represents an area of research in need of greater attention. Such research could lead to the much sought after development of targeted drugs against SCLC tumours.
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Affiliation(s)
- J L Bryant
- Faculty of Life Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK; Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK
| | - S L Meredith
- Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK
| | - K J Williams
- Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK
| | - A White
- Faculty of Life Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK; Faculty of Medical and Human Sciences, Manchester Academic Health Sciences Centre, University of Manchester, AV Hill Building, Manchester M13 9PT, UK.
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Wouters A, Pauwels B, Burrows N, Baay M, Deschoolmeester V, Vu TN, Laukens K, Meijnders P, Van Gestel D, Williams KJ, Van den Weyngaert D, Vermorken JB, Pauwels P, Peeters M, Lardon F. The radiosensitising effect of gemcitabine and its main metabolite dFdU under low oxygen conditions is in vitro not dependent on functional HIF-1 protein. BMC Cancer 2014; 14:594. [PMID: 25128202 PMCID: PMC4152599 DOI: 10.1186/1471-2407-14-594] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 08/05/2014] [Indexed: 12/02/2022] Open
Abstract
Background Regions within solid tumours often experience oxygen deprivation, which is associated with resistance to chemotherapy and irradiation. The aim of this study was to evaluate the radiosensitising effect of gemcitabine and its main metabolite dFdU under normoxia versus hypoxia and to determine whether hypoxia-inducible factor 1 (HIF-1) is involved in the radiosensitising mechanism. Methods Stable expression of dominant negative HIF-1α (dnHIF) in MDA-MB-231 breast cancer cells, that ablated endogenous HIF-1 transcriptional activity, was validated by western blot and functionality was assessed by HIF-1α activity assay. Cells were exposed to varying oxygen environments and treated with gemcitabine or dFdU for 24 h, followed by irradiation. Clonogenicity was then assessed. Using radiosensitising conditions, cells were collected for cell cycle analysis. Results HIF-1 activity was significantly inhibited in cells stably expressing dnHIF. A clear radiosensitising effect under normoxia and hypoxia was observed for both gemcitabine and dFdU. No significant difference in radiobiological parameters between HIF-1 proficient and HIF-1 deficient MDA-MB-231 cells was demonstrated. Conclusions For the first time, radiosensitisation by dFdU, the main metabolite of gemcitabine, was demonstrated under low oxygen conditions. No major role for functional HIF-1 protein in radiosensitisation by gemcitabine or dFdU could be shown.
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Affiliation(s)
- An Wouters
- Center for Oncological Research Antwerp, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
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25
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Lopez-Sánchez LM, Jimenez C, Valverde A, Hernandez V, Peñarando J, Martinez A, Lopez-Pedrera C, Muñoz-Castañeda JR, De la Haba-Rodríguez JR, Aranda E, Rodriguez-Ariza A. CoCl2, a mimic of hypoxia, induces formation of polyploid giant cells with stem characteristics in colon cancer. PLoS One 2014; 9:e99143. [PMID: 24932611 PMCID: PMC4059626 DOI: 10.1371/journal.pone.0099143] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 05/09/2014] [Indexed: 12/13/2022] Open
Abstract
The induction of polyploidy is considered the reproductive end of cells, but there is evidence that polyploid giant cancer cells (PGCCs) contribute to cell repopulation during tumor relapse. However, the role of these cells in the development, progression and response to therapy in colon cancer remains undefined. Therefore, the main objective of this study was to investigate the generation of PGCCs in colon cancer cells and identify mechanisms of formation. Treatment of HCT-116 and Caco-2 colon cancer cells with the hypoxia mimic CoCl2 induced the formation of cells with larger cell and nuclear size (PGCCs), while the cells with normal morphology were selectively eliminated. Cytometric analysis showed that CoCl2 treatment induced G2 cell cycle arrest and the generation of a polyploid cell subpopulation with increased cellular DNA content. Polyploidy of hypoxia-induced PGCCs was confirmed by FISH analysis. Furthermore, CoCl2 treatment effectively induced the stabilization of HIF-1α, the differential expression of a truncated form of p53 (p47) and decreased levels of cyclin D1, indicating molecular mechanisms associated with cell cycle arrest at G2. Generation of PGCCs also contributed to expansion of a cell subpopulation with cancer stem cells (CSCs) characteristics, as indicated by colonosphere formation assays, and enhanced chemoresistance to 5-fluorouracil and oxaliplatin. In conclusion, the pharmacological induction of hypoxia in colon cancer cells causes the formation of PGCCs, the expansion of a cell subpopulation with CSC characteristics and chemoresistance. The molecular mechanisms involved, including the stabilization of HIF-1 α, the involvement of p53/p47 isoform and cell cycle arrest at G2, suggest novel targets to prevent tumor relapse and treatment failure in colon cancer.
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Affiliation(s)
- Laura M. Lopez-Sánchez
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Carla Jimenez
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Araceli Valverde
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Vanessa Hernandez
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Jon Peñarando
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Martinez
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Chary Lopez-Pedrera
- Research Unit, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
| | - Juan R. Muñoz-Castañeda
- Research Unit, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
| | - Juan R. De la Haba-Rodríguez
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Enrique Aranda
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
| | - Antonio Rodriguez-Ariza
- Oncology Department, Maimonides Institute of Biomedical Research (IMIBIC), Reina Sofía Hospital, University of Córdoba, Córdoba, Spain
- Spanish Cancer Network (RTICC), Instituto de Salud Carlos III, Madrid, Spain
- * E-mail:
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VOLKOVA EKATERINA, ROBINSON BRIDGETA, WILLIS JINNY, CURRIE MARGARETJ, DACHS GABIU. Marginal effects of glucose, insulin and insulin-like growth factor on chemotherapy response in endothelial and colorectal cancer cells. Oncol Lett 2014; 7:311-320. [PMID: 24396438 PMCID: PMC3881921 DOI: 10.3892/ol.2013.1710] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 10/24/2013] [Indexed: 12/30/2022] Open
Abstract
Resistance to chemotherapy is a major clinical issue for patients with colorectal cancer. Obesity has been associated with a poorer outcome and is a possible mechanism of resistance. The aim of the present study was to investigate the effect of obesity-related factors on the cell response to standard chemotherapy in stromal and colorectal cancer cells. Viability was measured following the treatment of colorectal cancer cell lines (WiDr and SW620) and stromal cells (human microvascular endothelial cells) in vitro with 5-fluorouracil, irinotecan and oxaliplatin under obesity-related conditions [elevated levels of insulin, insulin-like growth factor-1 (IGF-1) and glucose] and compared with non-elevated conditions. Obesity-related conditions alone increased cell viability and in selected cases, accumulation of the transcription factor, hypoxia-inducible factor-1. However, these conditions did not consistently increase resistance to the chemotherapy agents tested. The combination of IGF-1 and extremely low-dose chemotherapy significantly induced cell viability in WiDr colorectal cancer cells. These in vitro results may have clinical importance in an environment of increasing rates of obesity and colorectal cancer, and the frequent under-dosing of obese cancer patients.
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Affiliation(s)
- EKATERINA VOLKOVA
- Mackenzie Cancer Research Group, Department of Pathology, University of Otago Christchurch, Christchurch 8140, New Zealand
| | - BRIDGET A. ROBINSON
- Mackenzie Cancer Research Group, Department of Pathology, University of Otago Christchurch, Christchurch 8140, New Zealand
- Canterbury Regional Cancer and Blood Service, Canterbury District Health Board, Christchurch 8140, New Zealand
| | - JINNY WILLIS
- Lipid and Diabetes Research Group, Christchurch Hospital, Christchurch 8140, New Zealand
| | - MARGARET J. CURRIE
- Mackenzie Cancer Research Group, Department of Pathology, University of Otago Christchurch, Christchurch 8140, New Zealand
| | - GABI U. DACHS
- Mackenzie Cancer Research Group, Department of Pathology, University of Otago Christchurch, Christchurch 8140, New Zealand
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Cancer Hypoxia and the Tumour Microenvironment as Effectors of Cancer Metabolism. CORRELATION-BASED NETWORK ANALYSIS OF CANCER METABOLISM 2014. [DOI: 10.1007/978-1-4939-0615-4_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Case Study: Systems Biology of HIF Metabolism in Cancer. CORRELATION-BASED NETWORK ANALYSIS OF CANCER METABOLISM 2014. [DOI: 10.1007/978-1-4939-0615-4_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Scartozzi M, Giampieri R, Loretelli C, Bittoni A, Mandolesi A, Faloppi L, Bianconi M, Del Prete M, Andrikou K, Bearzi I, Cascinu S. Tumor angiogenesis genotyping and efficacy of first-line chemotherapy in metastatic gastric cancer patients. Pharmacogenomics 2013; 14:1991-8. [PMID: 24090479 DOI: 10.2217/pgs.13.185] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIM Besides correlating with prognosis, tumor-driven angiogenesis also seemed able to influence response/resistance to chemotherapy in preclinical models. We examined the role of tumor angiogenesis genotyping in determining clinical outcome in metastatic gastric cancer patients receiving first-line chemotherapy. PATIENTS & METHODS VEGF-A, VEGF-C, FLT1, KDR and FLT4 genotyping was analyzed in gastric tumors from patients receiving platinum-based first-line chemotherapy. RESULTS VEGF-A rs25648 correlated with response rate (partial response: 18% among patients showing the VEGF-A rs25648 CT or TT genotype vs 44% among patients showing the VEGF-A rs25648 C genotype; p = 0.04). At multivariate analysis only VEGF-A rs25648 maintained an independent role in determining median progression-free survival (hazard ratio: 1.65 95% CI: 1.12-2.78) and overall survival (hazard ratio: 1.58, 95% CI: 1.17-2.65). CONCLUSION VEGF-A rs25648 genotyping may help identify a patient subgroup unlikely to benefit from a first-line, platinum-based combination and potential candidates for alternative therapy choices.
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Affiliation(s)
- Mario Scartozzi
- Department of Clinica di Oncologia Medica, AO Ospedali Riuniti-Università Politecnica delle Marche, Ancona, Italy
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Chen CC, Chu CB, Liu KJ, Huang CYF, Chang JY, Pan WY, Chen HH, Cheng YH, Lee KD, Chen MF, Kuo CC, Chen LT. Gene expression profiling for analysis acquired oxaliplatin resistant factors in human gastric carcinoma TSGH-S3 cells: The role of IL-6 signaling and Nrf2/AKR1C axis identification. Biochem Pharmacol 2013; 86:872-87. [DOI: 10.1016/j.bcp.2013.07.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 07/29/2013] [Accepted: 07/29/2013] [Indexed: 02/02/2023]
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Adamski J, Price A, Dive C, Makin G. Hypoxia-induced cytotoxic drug resistance in osteosarcoma is independent of HIF-1Alpha. PLoS One 2013; 8:e65304. [PMID: 23785417 PMCID: PMC3681794 DOI: 10.1371/journal.pone.0065304] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 04/24/2013] [Indexed: 01/06/2023] Open
Abstract
Survival rates from childhood cancer have improved dramatically in the last 40 years, such that over 80% of children are now cured. However in certain subgroups, including metastatic osteosarcoma, survival has remained stubbornly poor, despite dose intensive multi-agent chemotherapy regimens, and new therapeutic approaches are needed. Hypoxia is common in adult solid tumours and is associated with treatment resistance and poorer outcome. Hypoxia induces chemotherapy resistance in paediatric tumours including neuroblastoma, rhabdomyosarcoma and Ewing’s sarcoma, in vitro, and this drug resistance is dependent on the oxygen-regulated transcription factor hypoxia inducible factor-1 (HIF-1). In this study the effects of hypoxia on the response of the osteosarcoma cell lines 791T, HOS and U2OS to the clinically relevant cytotoxics cisplatin, doxorubicin and etoposide were evaluated. Significant hypoxia-induced resistance to all three agents was seen in all three cell lines and hypoxia significantly reduced drug-induced apoptosis. Hypoxia also attenuated drug-induced activation of p53 in the p53 wild-type U2OS osteosarcoma cells. Drug resistance was not induced by HIF-1α stabilisation in normoxia by cobalt chloride nor reversed by the suppression of HIF-1α in hypoxia by shRNAi, siRNA, dominant negative HIF or inhibition with the small molecule NSC-134754, strongly suggesting that hypoxia-induced drug resistance in osteosarcoma cells is independent of HIF-1α. Inhibition of the phosphoinositide 3-kinase (PI3K) pathway using the inhibitor PI-103 did not reverse hypoxia-induced drug resistance, suggesting the hypoxic activation of Akt in osteosarcoma cells does not play a significant role in hypoxia-induced drug resistance. Targeting hypoxia is an exciting prospect to improve current anti-cancer therapy and combat drug resistance. Significant hypoxia-induced drug resistance in osteosarcoma cells highlights the potential importance of hypoxia as a target to reverse drug resistance in paediatric osteosarcoma. The novel finding of HIF-1α independent drug resistance suggests however other hypoxia related targets may be more relevant in paediatric osteosarcoma.
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Affiliation(s)
- Jennifer Adamski
- Clinical and Experimental Pharmacology, Paterson Institute for Cancer Research, Manchester, United Kingdom
- Institute of Cancer Sciences, Manchester Cancer Research Centre, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
- Department of Paediatric Oncology, Royal Manchester Children’s Hospital, Manchester, United Kingdom
| | - Andrew Price
- Clinical and Experimental Pharmacology, Paterson Institute for Cancer Research, Manchester, United Kingdom
| | - Caroline Dive
- Clinical and Experimental Pharmacology, Paterson Institute for Cancer Research, Manchester, United Kingdom
- Institute of Cancer Sciences, Manchester Cancer Research Centre, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
| | - Guy Makin
- Clinical and Experimental Pharmacology, Paterson Institute for Cancer Research, Manchester, United Kingdom
- Institute of Cancer Sciences, Manchester Cancer Research Centre, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, United Kingdom
- Department of Paediatric Oncology, Royal Manchester Children’s Hospital, Manchester, United Kingdom
- * E-mail:
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Abstract
Experiments conducted in the microgravity environment of space are not typically at the forefront of the mind of a cancer biologist. However, space provides physical conditions that are not achievable on Earth, as well as conditions that can be exploited to study mechanisms and pathways that control cell growth and function. Over the past four decades, studies have shown how exposure to microgravity alters biological processes that may be relevant to cancer. In this Review, we explore the influence of microgravity on cell biology, focusing on tumour cells grown in space together with work carried out using models in ground-based investigations.
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Liang D, Yang M, Guo B, Yang L, Cao J, Zhang X. HIF-1α induced by β-elemene protects human osteosarcoma cells from undergoing apoptosis. J Cancer Res Clin Oncol 2012; 138:1865-77. [PMID: 22736026 DOI: 10.1007/s00432-012-1256-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 05/22/2012] [Indexed: 12/26/2022]
Abstract
BACKGROUND β-Elemene, isolated from more than 50 Chinese herbs and plants, has shown promising anticancer effects against a broad spectrum of tumors, such as lung, breast, prostate, cervical, colon and ovarian carcinomas (Wang et al. in Cell Mol Life Sci 62:881-893, 2005; Li et al. in Cell Mol Life Sci 62:894-904, 2005; J Pharm Pharmacol 62(8):1018-1027, 2010). But it has not reported in osteosarcoma cells. The aim of the present study is to investigate the antitumor effect of β-elemene on human osteosarcoma cancer cells and the molecular mechanism involved. RESULTS β-Elemene inhibited the viability of human osteosarcoma cells in a dose-time-dependent manner. The suppression of cell viability was due to the induction of apoptosis. Our study also found that β-elemene treatment upregulated HIF-1α protein, which partially inhibits apoptosis. Knockdown of HIF-1α with small interfering RNA or co-treatment with the HIF-1α inhibitor YC-1 significantly enhanced the antitumor effects of β-elemene. CONCLUSIONS Our study first found that β-elemene could increase the expression of HIF-1α through ROS and PI3K/Akt/mTor signaling pathway. And HIF-1α partially prevents human osteosarcoma cells from undergoing apoptosis. The anticancer effects of β-elemene was weakened by HIF-1α. So, we recognize that a combination of β-elemene with HIF-1α inhibitor might be a useful therapeutic option for osteosarcoma.
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Affiliation(s)
- Dan Liang
- Department of Orthopedics, The First Affiliated Hospital, China Medical University, No 155 Nanjing North Street, Shenyang, Liaoning, People's Republic of China
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ToF-SIMS as a tool for metabolic profiling small biomolecules in cancer systems. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.5055] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Gieling RG, Babur M, Mamnani L, Burrows N, Telfer BA, Carta F, Winum JY, Scozzafava A, Supuran CT, Williams KJ. Antimetastatic Effect of Sulfamate Carbonic Anhydrase IX Inhibitors in Breast Carcinoma Xenografts. J Med Chem 2012; 55:5591-600. [DOI: 10.1021/jm300529u] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Roben G. Gieling
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
| | - Muhammad Babur
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
| | - Lupti Mamnani
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
| | - Natalie Burrows
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
| | - Brian A. Telfer
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
| | - Fabrizio Carta
- Department of Chemistry, University of Florence, Florence, Italy
| | - Jean-Yves Winum
- Institut
des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1-UM2,
Bâtiment de Recherche Max Mousseron, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de
l’Ecole Normale, 34296 Montpellier Cedex, France
| | | | | | - Kaye J. Williams
- Hypoxia and Therapeutics Group, School of
Pharmacy and Pharmaceutical Sciences, University of Manchester, Manchester, United Kingdom
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Harrison LRE, Micha D, Brandenburg M, Simpson KL, Morrow CJ, Denneny O, Hodgkinson C, Yunus Z, Dempsey C, Roberts D, Blackhall F, Makin G, Dive C. Hypoxic human cancer cells are sensitized to BH-3 mimetic–induced apoptosis via downregulation of the Bcl-2 protein Mcl-1. J Clin Invest 2011; 121:1075-87. [PMID: 21393866 DOI: 10.1172/jci43505] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Accepted: 12/22/2010] [Indexed: 12/21/2022] Open
Abstract
Solid tumors contain hypoxic regions in which cancer cells are often resistant to chemotherapy-induced apoptotic cell death. Therapeutic strategies that specifically target hypoxic cells and promote apoptosis are particularly appealing, as few normal tissues experience hypoxia. We have found that the compound ABT-737, a Bcl-2 homology domain 3 (BH-3) mimetic, promotes apoptotic cell death in human colorectal carcinoma and small cell lung cancer cell lines exposed to hypoxia. This hypoxic induction of apoptosis was mediated through downregulation of myeloid cell leukemia sequence 1 (Mcl-1), a Bcl-2 family protein that serves as a biomarker for ABT-737 resistance. Downregulation of Mcl-1 in hypoxia was independent of hypoxia-inducible factor 1 (HIF-1) activity and was consistent with decreased global protein translation. In addition, ABT-737 induced apoptosis deep within tumor spheroids, consistent with an optimal hypoxic oxygen tension being necessary to promote ABT-737–induced cell death. Tumor xenografts in ABT-737–treated mice also displayed significantly more apoptotic cells within hypoxic regions relative to normoxic regions. Synergies between ABT-737 and other cytotoxic drugs were maintained in hypoxia, suggesting that this drug may be useful in combination with chemotherapeutic agents. Taken together, these findings suggest that Mcl-1–sparing BH-3 mimetics may induce apoptosis in hypoxic tumor cells that are resistant to other chemotherapeutic agents and may have a role in combinatorial chemotherapeutic regimens for treatment of solid tumors.
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Affiliation(s)
- Luke R E Harrison
- Clinical and Experimental Pharmacology Group, Paterson Institute for Cancer Research, University of Manchester, Manchester, United Kingdom
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Hypoxia and lineage specification of cell line-derived colorectal cancer stem cells. Proc Natl Acad Sci U S A 2011; 108:4382-7. [PMID: 21368208 DOI: 10.1073/pnas.1014519107] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Hypoxia is an important regulator of normal and cancer stem cell (CSC) differentiation. Colorectal CSCs from SW1222, LS180, and CCK81 colorectal cancer-derived cell lines are able to differentiate into complex 3D lumen-containing structures in normoxia, whereas in hypoxia, they form undifferentiated dense colonies that have reduced expression of the enterocyte differentiation marker CDX1, lack goblet cell formation, and have increased expression of BMI1 and activated Notch1. Hypoxia increases the clonogenicity of CSCs, which is cumulative as each round of hypoxia enriches for more CSCs. The hypoxic phenotype is reversible, because cells from hypoxic-dense colonies are able to reform differentiated structures when regrown in normoxia. We show that CDX1 is able to stimulate the generation of lumens even in hypoxia and has a negative feedback on BMI1 expression. Knockdown of CDX1 reduces lumen formation but does not affect goblet cell formation, suggesting that enterocytes and goblet cells form from different progenitor cells. Notch inhibition by dibenzazepine (DBZ) allowed CSCs to form goblet cells in both normoxia and hypoxia. Finally, we show that Hif1α, but not CA9, is an important mediator of the effects of hypoxia on the clonogenicity and differentiation of CSCs. In summary, hypoxia maintains the stem-like phenotype of colorectal cell line-derived CSCs and prevents differentiation of enterocytes and goblet cells by regulating CDX1 and Notch1, suggesting that this regulation is an important component of how hypoxia controls the switch between stemness and differentiation in CSCs.
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Immunohistochemical expression of VEGF predicts response to platinum based chemotherapy in patients with epithelial ovarian cancer. Angiogenesis 2011; 14:155-61. [DOI: 10.1007/s10456-010-9199-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Accepted: 12/29/2010] [Indexed: 02/07/2023]
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