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Szczygieł M, Markiewicz M, Szafraniec MJ, Hojda A, Fiedor L, Urbanska K. Systemic Mobilization of Breast Cancer Resistance Protein in Response to Oncogenic Stress. Cancers (Basel) 2022; 14:cancers14020313. [PMID: 35053477 PMCID: PMC8773772 DOI: 10.3390/cancers14020313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/22/2021] [Accepted: 12/30/2021] [Indexed: 02/01/2023] Open
Abstract
Simple Summary The drug efflux mediated by xenobiotic transporters is one of the best recognized mechanisms of multidrug resistance in cancer that leads to the failure of therapeutic approaches. The aim of our research was to examine the influence of a growing tumor on the activity of xenobiotic transport in the host. Our study reveals a strong correlation between the development of melanoma tumor in mice and the level of breast cancer resistance protein, one of the major xenobiotic transporters, and its transcript in the normal tissues of the hosts distant from the tumor site. The systemic effects of the tumor are confirmed by a drastically enhanced xenobiotic transport, which is correlated with changes in the level of cytokines in blood. Such an unexpected type of tumor–host interaction, which leads to the systemic upregulation of breast cancer resistance protein, and very likely of other xenobiotic transporters too, has broad implications for cancer therapies, including chemotherapy and photodynamic therapy. Our findings shed new light on the biology of cancer and the complexity of cancer–host interactions that should be taken into account in the design of new generations of anti-cancer drugs and personalized medicine. Abstract The breast cancer resistance protein (BCRP or ABCG2) involved in cancer multidrug resistance (MDR), transports many hydrophobic compounds, including a number of anti-cancer drugs. Our comprehensive study using a mouse model reveals that a subcutaneously growing tumor strongly affects the expression of BCRP in the host’s normal organs on both the transcriptional and translational level. Additionally, the efflux of BCRP substrates is markedly enhanced. The levels of BCRP and its transcript in normal tissues distant from the tumor site correlate with tumor growth and the levels of cytokines in the peripheral blood. Thus, oncogenic stress causes transient systemic upregulation of BCRP in the host’s normal tissues and organs, which is possibly mediated via cytokines. Because BCRP upregulation takes place in many organs as early as the initial stages of tumor development, it reveals a most basic mechanism that may be responsible for the induction of primary MDR. We hypothesize that such effects are not tumor-specific responses, but rather constitute a more universal defense strategy. The xenobiotic transporters are systemically mobilized due to various stresses, seemingly in a pre-emptive manner so that the body can be quickly and efficiently detoxified. Our findings shed new light on the biology of cancer and on the complexity of cancer–host interactions and are highly relevant to cancer therapies as well as to the design of new generations of therapeutics and personalized medicine.
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Affiliation(s)
- Małgorzata Szczygieł
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
- Correspondence: (M.S.); (L.F.)
| | - Marcin Markiewicz
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
| | - Milena Julia Szafraniec
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
- Łukasiewicz Research Network—PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wrocław, Poland
| | - Agnieszka Hojda
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
| | - Leszek Fiedor
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
- Correspondence: (M.S.); (L.F.)
| | - Krystyna Urbanska
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland; (M.M.); (M.J.S.); (A.H.); (K.U.)
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Fujita I, Watanabe H, Ikegami K, Imafuku T, Ichimizu S, Chikamatsu M, Kobayashi K, Tanaka R, Yamada K, Maeda H, Maruyama T. Involvement of the Parathyroid Hormone-Related Protein on Changes in the CYP3A Expression in Cancer Cachexia. Mol Pharm 2021; 18:4322-4330. [PMID: 34734526 DOI: 10.1021/acs.molpharmaceut.1c00490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Parathyroid hormone-related protein (PTHrP), which is secreted from a tumor, contributes to the progression of cachexia, a condition that is observed in half of all cancer patients. Although drug clearance was reported to decrease in patients with cancer cachexia, the details have not been clarified. The present study reports on an investigation of whether PTHrP is involved in the alternation of drug metabolism in cases of cancer cachexia. Cancer cachexia model rats with elevated serum PTHrP levels showed a significant decrease in hepatic and intestinal CYP3A2 protein expression. When midazolam, a CYP3A substrate drug, was administered intravenously or orally to the cancer cachexia rats, its area under the curve (AUC) was increased by about 2 and 5 times, as compared to the control group. Accordingly, the bioavailability of midazolam was increased by about 3 times, thus enhancing its pharmacological effect. In vitro experiments using HepG2 cells and Caco-2 cells showed that the addition of serum from cancer cachexia rats or active PTHrP (1-34) to each cell resulted in a significant decrease in the expression of CYP3A4 mRNA. Treatment with a cell-permeable cAMP analog also resulted in a decreased CYP3A4 expression. Pretreatment with protein kinase A (PKA), protein kinase C (PKC), and nuclear factor-kappa B (NF-κB) inhibitors recovered the decrease in CYP3A4 expression that was induced by PTHrP (1-34). These results suggest that PTHrP suppresses CYP3A expression via the cAMP/PKA/PKC/NF-κB pathway. Therefore, it is likely that PTHrP would be involved in the changes in drug metabolism observed in cancer cachexia.
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Affiliation(s)
- Issei Fujita
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Komei Ikegami
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Tadashi Imafuku
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Shota Ichimizu
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Mayuko Chikamatsu
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Kazuki Kobayashi
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Ryusei Tanaka
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Koichi Yamada
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Hitoshi Maeda
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
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Liu J, Jin X, Zhou F, Chen H, Wang W, Liu Y, Wang G, Hao K, Zhang J. Disrupted hepatic pentose phosphate pathway directly participates in and indirectly promotes CYP3A reduction: A new strategy for CYP3A-mediated drug hepatotoxicity. Br J Pharmacol 2020; 177:1538-1555. [PMID: 31670839 DOI: 10.1111/bph.14916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/17/2019] [Accepted: 10/13/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND AND PURPOSE Hepatic CYP450s play an important role in drug-induced hepatotoxicity. They are altered in liver diseases and in many non-liver diseases, such as extra-hepatic tumours. Consequently, CYP450-mediated abnormal drug exposure increases the incidence and extent of hepatotoxicity. This risk is often underestimated because the mechanisms underlying decreases in hepatic CYP450s in extra-hepatic tumours remain unclear. EXPERIMENTAL APPROACH We used Balb/c nude mice with s.c. transplanted 4T1, LoVo and HepG2 tumours to model extra-hepatic tumours. Decreased levels of CYP3A were evaluated by qPCR, western blotting, and metabolic activity. LC-Q/TOF-MS and GC-MS were used in combination for analysing liver metabolomics. The contribution of the pentose phosphate pathway (PPP) to decreased CYP3A was assessed using menadione and silencing of glucose-6-phosphate dehydrogenase. KEY RESULTS CYP3A activity was inhibited at early stages of tumour growth when no significant inflammatory response was observed. The PPP was predominately disrupted at this non-inflammatory stage. Disruption of the PPP directly inhibited CYP3A through the chk2/p53/p65 pathway at the non-inflammatory stage, but at the later inflammatory stage, it indirectly potentiated the subsequent IL-6-mediated CYP3A decrease. Recovery of the PPP with menadione at the non-inflammatory stage, reversed the decreased CYP3A. Similar reversal was obtained with the IL-6 inhibitor, tocilizumab. Such modulation of the PPP to alleviate CYP3A-mediated drug hepatotoxicity was validated with dasatinib in vivo. CONCLUSIONS AND IMPLICATIONS PPP modulation at early, non-inflammatory stages might provide a novel and distinctive approach to manage drug hepatotoxicity mediated by decreased CYP3A.
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Affiliation(s)
- Jiali Liu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Xiaoliang Jin
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Fang Zhou
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Hongzhu Chen
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Wenjie Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Yan Liu
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Guangji Wang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Kun Hao
- Department of Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Jingwei Zhang
- Key Lab of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu, China
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Reyner E, Lum B, Jing J, Kagedal M, Ware JA, Dickmann LJ. Intrinsic and Extrinsic Pharmacokinetic Variability of Small Molecule Targeted Cancer Therapy. Clin Transl Sci 2019; 13:410-418. [PMID: 31729137 PMCID: PMC7070882 DOI: 10.1111/cts.12726] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 10/30/2019] [Indexed: 12/16/2022] Open
Abstract
Pharmacokinetic (PK) variability in cancer clinical trials may be due to heterogeneous populations and identifying sources of variability is important. Use of healthy subjects in clinical pharmacology studies together with detailed knowledge of the characteristics of patients with cancer can allow for quick identification and quantification of factors affecting PK variability. PK data and sources of variability of 40 marketed molecularly targeted oncology therapeutics were compiled from regulatory approval documents covering an 18‐year period (1999–2017). Variability in PK parameters was compared and contributors to variability were identified. The results show that PK variability was ~ 16% higher for peak plasma concentration (Cmax) and area under the concentration time curve (AUC) in patients with cancer compared with healthy subjects. Several factors were identified as major contributors to variability including hepatic/renal impairment and cytochrome P450 inhibition/induction. Lower PK variability in healthy subjects may represent an opportunity to perform rapid and robust pharmacological and PK assessments to inform subsequent studies in the development of new cancer therapies.
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Affiliation(s)
- Eric Reyner
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA
| | - Bert Lum
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA
| | - Jing Jing
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA
| | - Matts Kagedal
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA
| | - Joseph A Ware
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA.,Acerta Pharma LLC, South San Francisco, California, USA
| | - Leslie J Dickmann
- Department of Clinical Pharmacology, Genentech, Inc., South San Francisco, California, USA.,School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Sanghera C, Teh JJ, Pinato DJ. The systemic inflammatory response as a source of biomarkers and therapeutic targets in hepatocellular carcinoma. Liver Int 2019; 39:2008-2023. [PMID: 31433891 DOI: 10.1111/liv.14220] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 08/10/2019] [Accepted: 08/13/2019] [Indexed: 12/12/2022]
Abstract
The pathogenesis of hepatocellular carcinoma (HCC) strongly relates to inflammation, with chronic up-regulation of pro-inflammatory mediators standing as a potential unifying mechanism that underscores the origin and progression of HCC independent of aetiology. Activation of the diverse pro-inflammatory mediators either within the tumour or its microenvironment is part of an active cross-talk between the progressive HCC and the host, which is known to influence clinical outcomes including recurrence after radical treatments and long-term survival. A number of clinical biomarkers to measure the severity of cancer-related inflammation are now available, most of which emerge from routine blood parameters including neutrophil, lymphocyte, platelet counts, as well as albuminaemia and C-reactive protein levels. In this review, we summarise the body of evidence supporting the biologic qualification of inflammation-based scores in HCC and review their potential in facilitating the prognostic assessment and treatment allocation in the individual patient. We also discuss the evidence to suggest modulation of tumour-promoting inflammation may act as a source of novel therapeutic strategies in liver cancer.
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Affiliation(s)
| | - Jhia J Teh
- Department of Medicine, Imperial College London, London, UK
| | - David J Pinato
- Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, UK
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Trousil S, Lee P, Edwards RJ, Maslen L, Lozan-Kuehne JP, Ramaswami R, Aboagye EO, Clarke S, Liddle C, Sharma R. Altered cytochrome 2E1 and 3A P450-dependent drug metabolism in advanced ovarian cancer correlates to tumour-associated inflammation. Br J Pharmacol 2019; 176:3712-3722. [PMID: 31236938 DOI: 10.1111/bph.14776] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/10/2019] [Accepted: 05/16/2019] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND AND PURPOSE Previous work has focussed on changes in drug metabolism caused by altered activity of CYP3A in the presence of inflammation and, in particular, inflammation associated with malignancy. However, drug metabolism involves a number of other P450s, and therefore, we assessed the effect of cancer-related inflammation on multiple CYP enzymes using a validated drug cocktail. EXPERIMENTAL APPROACH Patients with advanced stage ovarian cancer and healthy volunteers were recruited. Participants received caffeine, chlorzoxazone, dextromethorphan, and omeprazole as in vivo probes for CYP1A2, CYP2E1, CYP2D6, CYP3A, and CYP2C19. Blood was collected for serum C-reactive protein and cytokine analysis. KEY RESULTS CYP2E1 activity was markedly up-regulated in cancer (6-hydroxychlorzoxazone/chlorzoxazone ratio of 1.30 vs. 2.75), while CYP3A phenotypic activity was repressed in cancer (omeprazole sulfone/omeprazole ratio of 0.23 vs. 0.49). Increased activity of CYP2E1 was associated with raised serum levels of IL-6, IL-8, and TNF-α. Repression of CYP3A correlated with raised levels of serum C-reactive protein, IL-6, IL-8, and TNF-α. CONCLUSIONS AND IMPLICATIONS CYP enzyme activity is differentially affected by the presence of tumour-associated inflammation, affecting particularly CYP2E1- and CYP3A-mediated drug metabolism, and may have profound implications for drug development and prescribing in oncological settings.
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Affiliation(s)
- Sebastian Trousil
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Patrizia Lee
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Robert J Edwards
- Division of Experimental Medicine, Imperial College London, London, UK
| | - Lynn Maslen
- Department of Surgery and Cancer, Imperial College London, London, UK
| | | | - Ramya Ramaswami
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Eric O Aboagye
- Department of Surgery and Cancer, Imperial College London, London, UK
| | - Stephen Clarke
- Department of Medical Oncology, Royal North Shore Hospital, St Leonards, NSW, Australia
| | - Christopher Liddle
- Storr Liver Unit, Westmead Millennium Institute, University of Sydney, Westmead, Westmead, NSW, Australia
| | - Rohini Sharma
- Department of Surgery and Cancer, Imperial College London, London, UK
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Bruixola G, Caballero J, Papaccio F, Petrillo A, Iranzo A, Civera M, Moriana M, Bosch N, Maroñas M, González I, Pastor M, Cervantes A. Prognostic Nutritional Index as an independent prognostic factor in locoregionally advanced squamous cell head and neck cancer. ESMO Open 2018; 3:e000425. [PMID: 30426973 PMCID: PMC6212680 DOI: 10.1136/esmoopen-2018-000425] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/20/2018] [Accepted: 08/22/2018] [Indexed: 01/21/2023] Open
Abstract
Background Locally advanced head and neck squamous cell carcinoma (LAHNSCC) is a heterogeneous disease in which better predictive and prognostic factors are needed. Apart from TNM stage, both systemic inflammation and poor nutritional status have a negative impact on survival. Methods We retrospectively analysed two independent cohorts of a total of 145 patients with LAHNSCC treated with induction chemotherapy followed by concurrent chemoradiotherapy at two different academic institutions. Full clinical data, including the Prognostic Nutritional Index (PNI), neutrophil to lymphocyte ratio and derived neutrophil to lymphocyte ratio, were analysed in a training cohort of 50 patients. Receiver operating characteristic curve analysis was used to establish optimal cut-off. Univariate and multivariate analyses of prognostic factors for overall survival (OS) were performed. Independent predictors of OS identified in multivariate analysis were confirmed in a validation cohort of 95 patients. Results In the univariate analysis, low PNI (PNI<45) (p=0.001), large primary tumour (T4) (p=0.044) and advanced lymph node disease (N2b-N3) (p=0.025) were significantly associated with poorer OS in the validation cohort. The independent prognostic factors in the multivariate analysis for OS identified in the training cohort were dRNL (p=0.030) and PNI (p=0.042). In the validation cohort, only the PNI remained as independent prognostic factor (p=0.007). Conclusions PNI is a readily available, independent prognostic biomarker for OS in LAHNSCC. Adding PNI to tumour staging could improve individual risk stratification of patients with LAHNSCC in future clinical trials.
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Affiliation(s)
- Gema Bruixola
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
| | - Javier Caballero
- Medical Oncology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Federica Papaccio
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
| | - Angelica Petrillo
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
| | - Aina Iranzo
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
| | - Miguel Civera
- Endocrinology and Nutrition Department, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Miriam Moriana
- Endocrinology and Nutrition Department, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Neus Bosch
- Endocrinology and Nutrition Department, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Maria Maroñas
- Radiation Oncology Department, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Ines González
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
| | - Miguel Pastor
- Medical Oncology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Andrés Cervantes
- CIBERONC- Medical Oncology Department Biomedical Research Institute-INCLIVA - Hospital Clínico Universitario, University of Valencia, Valencia, Spain
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Nakayama H, Echizen H, Ogawa R, Orii T, Kato T. Reduced Clearance of Phenobarbital in Advanced Cancer Patients near the End of Life. Eur J Drug Metab Pharmacokinet 2018; 44:77-82. [PMID: 30027304 DOI: 10.1007/s13318-018-0495-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Little is known about the pharmacokinetics of phenobarbital in terminally ill cancer patients. We investigated whether phenobarbital clearance alters depending on the length of survival. METHODS We retrospectively reviewed the clinical, laboratory, and therapeutic drug monitoring (TDM) records of patients who received parenteral or oral phenobarbital for 21 consecutive days or longer between 2000 and 2016. Patients were divided into non-cancer and cancer groups. Cancer patients were further stratified according to the survival interval after TDM: those who survived > 3 months were classified as long-surviving and the remainders short-surviving cancer patients. Phenobarbital clearance (CLPB) was calculated at steady state. Multiple comparisons of median CLPB were conducted among the three groups. RESULTS Data were collected from 44 non-cancer patients and 34 cancer patients comprising 24 long-surviving and 10 short-surviving cancer patients. Among 10 short-surviving cancer patients, 4 had hepatic metastasis. Median CLPB (range) in short-surviving cancer patients [0.076 (0.057‒0.114) L/kg/day] was significantly (p < 0.05) lower than that in non-cancer patients [0.105 (0.060‒0.226) L/kg/day] and in long-surviving cancer patients [0.100 (0.082‒0.149) L/kg/day]. CONCLUSION Terminally ill patients with advanced cancer may have reduced CLPB, thereby TDM is recommended for these patients particularly near the end of life.
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Affiliation(s)
- Hirokazu Nakayama
- Department of Pharmacy, NTT Medical Centre Tokyo, 5-9-22 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan.
| | - Hirotoshi Echizen
- Department of Pharmacotherapy, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Ryuichi Ogawa
- Department of Pharmacotherapy, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Takao Orii
- Department of Pharmacy, NTT Medical Centre Tokyo, 5-9-22 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Toshiaki Kato
- Department of Pharmacy, NTT Medical Centre Tokyo, 5-9-22 Higashi-gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
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Long MD, Campbell MJ. Integrative genomic approaches to dissect clinically-significant relationships between the VDR cistrome and gene expression in primary colon cancer. J Steroid Biochem Mol Biol 2017; 173:130-138. [PMID: 28027912 DOI: 10.1016/j.jsbmb.2016.12.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/01/2016] [Accepted: 12/23/2016] [Indexed: 12/13/2022]
Abstract
Recently, we undertook a pan-cancer analyses of the nuclear hormone receptor (NR) superfamily in The Cancer Genome Atlas (TCGA), and revealed that the vitamin D receptor (NR1I1/VDR) was commonly and significantly down-regulated specifically in colon adenocarcinoma cohort (COAD). To examine the consequence of down-regulated VDR expression we re-analyzed VDR chromatin immunoprecipitation sequencing (ChIP-Seq) data from LS180 colon cancer cells (GSE31939). This analysis identified 1809 loci that displayed significant (p.adj<0.01) differential binding of the VDR in response 1,25(OH)2D3 treatment; 947 peaks annotated to 672 genes. We examined expression patterns in the COAD cohort of 286 tumors compared to 41 normal samples and revealed that VDR bound genes were significantly positively correlated to VDR expression compared to the background transcriptome, suggesting direct regulation by VDR. Gene set enrichment analyses revealed significant enrichment for genes known to be regulated by a number of other transcription factors including SMADs and JUN. Filtering VDR associated genes for those that were commonly and significantly altered in COAD revealed a cohort of 27 differentially expressed genes. The expression patterns of these genes clustered tumors and significantly associated with disease free survival. For instance, males with low expression of Lectin, Galactoside Binding Soluble 4 (LGALS4, encodes the colon tumor suppressor, Galactin 4) had significantly shorted disease free survival. These analyses suggest that reduced expression of VDR in colon cancer (but neither loss nor mutation) changes the actions of the VDR by both dampening the expression of tumor suppressors (e.g. LGALS4) whilst either stabilizing or not down-regulating expression of oncogenes (e.g. Carbonic Anhydrase 9 (CA9)). These integrative genomic approaches are relatively generic and applicable to the study of any transcription factor.
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Affiliation(s)
- Mark D Long
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Moray J Campbell
- College of Pharmacy, Pharmaceutics and Pharmaceutical Chemistry, 536 Parks Hall, 500 West 12th Ave., The Ohio State University, Columbus, OH 43210, USA.
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10
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Burns KE, Shepherd P, Finlay G, Tingle MD, Helsby NA. Indirect regulation of CYP2C19 gene expression via DNA methylation. Xenobiotica 2017; 48:781-792. [DOI: 10.1080/00498254.2017.1372648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Kathryn Elisa Burns
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand,
| | - Phillip Shepherd
- School of Medical Sciences, University of Auckland, Auckland, New Zealand, and
| | - Graeme Finlay
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand,
| | - Malcolm Drummond Tingle
- Department of Pharmacology and Clinical Pharmacology, University of Auckland, Auckland, New Zealand
| | - Nuala Ann Helsby
- Department of Molecular Medicine and Pathology, University of Auckland, Auckland, New Zealand,
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Hori Y, Shimizu Y, Aiba T. Altered hepatic drug-metabolizing activity in rats suffering from hypoxemia with experimentally induced acute lung impairment. Xenobiotica 2017; 48:576-583. [PMID: 28665167 DOI: 10.1080/00498254.2017.1349969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
1. Hepatic drug-metabolizing activity was investigated in vitro with liver microsomes prepared from rats suffering from hypoxemia with experimentally induced acute lung impairment (ALI). 2. Male Wistar rats received an intrabronchial administration of dilute hydrochloride solution for ALI induction. Pooled liver microsomes were prepared for the normal and ALI rats, and the hepatic drug metabolism mediated by cytochrome P450 (CYP) 3 A was examined in an incubation study with the microsomes. 3. The NADPH-dependent metabolism of midazolam significantly increases in ALI rats as compared with that in normal rats. Testosterone 6β-hydroxylation was also observed to significantly increase in ALI rats. 4. When the hepatic expression of CYP3A proteins was examined, the protein expression of CYP3A1 was shown to significantly increase and that of CYP3A2 remained unaltered in ALI rats. The hepatic expression of NADPH-cytochrome P450 reductase (POR), a protein mediating electron transfer in CYP-mediated drug metabolism, was also revealed to significantly increases in ALI rats. 5. With the findings regarding the midazolam elimination, the hepatic drug-metabolizing activity seems to increase in response to acute hypoxemia, partly due to an altered expression of the CYP3A enzymes, and an augmented electron transfer with an increased POR expression is probably involved in the increase.
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Affiliation(s)
- Yuki Hori
- a Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University , Okayama , Japan
| | - Yasumasa Shimizu
- a Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University , Okayama , Japan
| | - Tetsuya Aiba
- a Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University , Okayama , Japan
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12
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Inzhevatkin EV, Savchenko AA. The nonspecific metabolic reaction of cells to extreme exposures. BIOL BULL+ 2016. [DOI: 10.1134/s1062359016010064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Abstract
Nuclear receptors (NR) act as an integrated conduit for environmental and hormonal signals to govern genomic responses, which relate to cell fate decisions. We review how their integrated actions with each other, shared co-factors and other transcription factors are disrupted in cancer. Steroid hormone nuclear receptors are oncogenic drivers in breast and prostate cancer and blockade of signaling is a major therapeutic goal. By contrast to blockade of receptors, in other cancers enhanced receptor function is attractive, as illustrated initially with targeting of retinoic acid receptors in leukemia. In the post-genomic era large consortia, such as The Cancer Genome Atlas, have developed a remarkable volume of genomic data with which to examine multiple aspects of nuclear receptor status in a pan-cancer manner. Therefore to extend the review of NR function we have also undertaken bioinformatics analyses of NR expression in over 3000 tumors, spread across six different tumor types (bladder, breast, colon, head and neck, liver and prostate). Specifically, to ask how the NR expression was distorted (altered expression, mutation and CNV) we have applied bootstrapping approaches to simulate data for comparison, and also compared these NR findings to 12 other transcription factor families. Nuclear receptors were uniquely and uniformly downregulated across all six tumor types, more than predicted by chance. These approaches also revealed that each tumor type had a specific NR expression profile but these were most similar between breast and prostate cancer. Some NRs were down-regulated in at least five tumor types (e.g. NR3C2/MR and NR5A2/LRH-1)) whereas others were uniquely down-regulated in one tumor (e.g. NR1B3/RARG). The downregulation was not driven by copy number variation or mutation and epigenetic mechanisms maybe responsible for the altered nuclear receptor expression.
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Affiliation(s)
- Mark D Long
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Moray J Campbell
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
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14
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Liu M, Chen S, Yueh MF, Wang G, Hao H, Tukey RH. Reduction of p53 by knockdown of the UGT1 locus in colon epithelial cells causes an increase in tumorigenesis. Cell Mol Gastroenterol Hepatol 2015; 2:63-76.e5. [PMID: 26807433 PMCID: PMC4721636 DOI: 10.1016/j.jcmgh.2015.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS The UDP-glucuronosyltransferases (UGTs) are part of the cells machinery that protects the tissues from a toxicant insult by environmental and host cell metabolites. We have investigated the mechanism behind tumor growth and UGT repression. METHODS We initially silenced the Ugt1 locus in human colon cell lines and investigated markers and responses linked to p53 activation. To examine the role of the Ugt1 locus in p53-directed apoptosis and tumorigenesis, experiments were conducted to induce acute colon inflammation and chemical induced colon cancer in mice where we have selectively deleted the Ugt1 locus in the intestinal epithelial cells (Ugt1ΔIEC mice). RESULTS Knockdown of the UGT1A proteins by RNAi in human colon cancer cells and knockout of the Ugt1 locus in intestinal crypt stem cells reduces phosphorylated p53 activation and compromises the ability of p53 to control apoptosis. Targeted deletion of intestinal Ugt1 expression in Ugt1ΔIEC mice represses colon inflammation-induced p53 production and pro-apoptotic protein activation. When we induced colon cancer, the size and number of the tumors were significantly greater in the Ugt1ΔIEC mice when compared to wild type mice. Furthermore, analysis of endoplasmic reticulum (ER) stress-related markers indicated that lack of UGT1A expression causes higher ER stress in intestinal epithelial cells and tissue, which may account for the lower expression of p53. CONCLUSIONS Our results demonstrate that UGT1A expression is required to maintain and sustain p53 activation in stress-induced colon epithelial cells and has a significant impact on p53-mediated apoptosis and tumor suppression, thus protecting the colon tissue from neoplastic transformation.
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Affiliation(s)
- Miao Liu
- Laboratory of Environmental Toxicology, Department of Chemistry & Biochemistry and Pharmacology, University of California at San Diego, La Jolla, California,State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Shujuan Chen
- Laboratory of Environmental Toxicology, Department of Chemistry & Biochemistry and Pharmacology, University of California at San Diego, La Jolla, California
| | - Mei-Fei Yueh
- Laboratory of Environmental Toxicology, Department of Chemistry & Biochemistry and Pharmacology, University of California at San Diego, La Jolla, California
| | - Guangji Wang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, People’s Republic of China,Haiping Hao, PhD, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 21009, China.China Pharmaceutical University, Tongjiaxiang 24Nanjing 21009China
| | - Robert H. Tukey
- Laboratory of Environmental Toxicology, Department of Chemistry & Biochemistry and Pharmacology, University of California at San Diego, La Jolla, California,Correspondence Address correspondence to: Robert H. Tukey, PhD, University of California–San Diego, 9500 Gilman Drive, Leichtag Biomedical Research Building, Room 211, La Jolla, California 92093-0722.University of California–San Diego9500 Gilman DriveLeichtag Biomedical Research BuildingRoom 211La JollaCalifornia 92093-0722
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15
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Metabolic changes in the liver of mice with Ehrlich ascites carcinoma. Bull Exp Biol Med 2014; 157:785-8. [PMID: 25342485 DOI: 10.1007/s10517-014-2667-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Indexed: 10/24/2022]
Abstract
The dynamics of NADP-dependent dehydrogenase activity and malonic dialdehyde content in the liver were studied in mice with Ehrlich ascites carcinoma. Tumor growth was accompanied by the development of conditions for an increase in the intensity of energy metabolism and amphibolic role of the tricarboxylic acid cycle in LPO activation in liver cells.
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16
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Mimura H, Kobayashi K, Xu L, Hashimoto M, Ejiri Y, Hosoda M, Chiba K. Effects of cytokines on CYP3A4 expression and reversal of the effects by anti-cytokine agents in the three-dimensionally cultured human hepatoma cell line FLC-4. Drug Metab Pharmacokinet 2014; 30:105-10. [PMID: 25760537 DOI: 10.1016/j.dmpk.2014.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 07/31/2014] [Accepted: 08/08/2014] [Indexed: 11/29/2022]
Abstract
The expression of hepatic cytochrome P450 (CYP) enzymes is altered under pathological conditions with increased levels of cytokines. In this study, we analyzed the effects of cytokines (interleukin [IL]-1β, IL-6 and tumor necrosis factor α) on the expression of CYP3A4 using newly introduced three-dimensionally cultured human hepatocarcinoma FLC-4 cells. The mRNA level of CYP3A4 was significantly decreased by IL-1β, IL-6 and tumor necrosis factor-α. Formation of α-hydroxytriazolam catalyzed by CYP3A was decreased by IL-1β and IL-6. Pre-treatment with IL-6 enhanced the cytotoxic effects of gefitinib and paclitaxel. In addition, tocilizumab and IL-1 receptor antagonist restored the decreased expression of CYP3A4 mRNA by IL-6 and IL-1β, respectively. These results obtained by using three-dimensionally cultured FLC-4 cells are consistent with results obtained by using primary human hepatocytes and results of clinical studies. Therefore, three-dimensionally cultured FLC-4 cell system may be a promising cellular tool to assess the effects of cytokines on CYP3A4 expression.
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Affiliation(s)
- Hanaka Mimura
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Kaoru Kobayashi
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan.
| | - Linxiaoqing Xu
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Mari Hashimoto
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Yoko Ejiri
- Tsukuba Research Center, Kuraray, Co., Ltd., Tsukuba, Japan
| | - Masaya Hosoda
- Tsukuba Research Center, Kuraray, Co., Ltd., Tsukuba, Japan
| | - Kan Chiba
- Laboratory of Pharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
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17
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Konstandi M, Johnson EO, Lang MA. Consequences of psychophysiological stress on cytochrome P450-catalyzed drug metabolism. Neurosci Biobehav Rev 2014; 45:149-67. [DOI: 10.1016/j.neubiorev.2014.05.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/17/2014] [Accepted: 05/18/2014] [Indexed: 12/11/2022]
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18
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Pinato DJ. Cancer-related inflammation: an emerging prognostic domain in metastatic castration-resistant prostate carcinoma. Cancer 2014; 120:3272-4. [PMID: 24995642 DOI: 10.1002/cncr.28889] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 06/11/2014] [Indexed: 12/13/2022]
Affiliation(s)
- David J Pinato
- Division of Experimental Medicine, Imperial College London, Hammersmith Hospital, London, United Kingdom
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19
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Burns KE, Goldthorpe MA, Porteus F, Browett P, Helsby NA. CYP2C19 genotype–phenotype discordance in patients with multiple myeloma leads to an acquired loss of drug-metabolising activity. Cancer Chemother Pharmacol 2014; 73:651-5. [DOI: 10.1007/s00280-014-2409-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 02/03/2014] [Indexed: 01/20/2023]
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20
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Cressman AM, Petrovic V, Piquette-Miller M. Inflammation-mediated changes in drug transporter expression/activity: implications for therapeutic drug response. Expert Rev Clin Pharmacol 2014; 5:69-89. [DOI: 10.1586/ecp.11.66] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Intestinal glucuronidation protects against chemotherapy-induced toxicity by irinotecan (CPT-11). Proc Natl Acad Sci U S A 2013; 110:19143-8. [PMID: 24191041 DOI: 10.1073/pnas.1319123110] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Camptothecin (CPT)-11 (irinotecan) has been used widely for cancer treatment, particularly metastatic colorectal cancer. However, up to 40% of treated patients suffer from severe late diarrhea, which prevents CPT-11 dose intensification and efficacy. CPT-11 is a prodrug that is hydrolyzed by hepatic and intestinal carboxylesterase to form SN-38, which in turn is detoxified primarily through UDP-glucuronosyltransferase 1A1 (UGT1A1)-catalyzed glucuronidation. To better understand the mechanism associated with toxicity, we generated tissue-specific Ugt1 locus conditional knockout mouse models and examined the role of glucuronidation in protecting against irinotecan-induced toxicity. We targeted the deletion of the Ugt1 locus and the Ugt1a1 gene specifically in the liver (Ugt1(ΔHep)) and the intestine (Ugt1(ΔGI)). Control (Ugt1(F/F)), Ugt1(ΔHep), and Ugt1(ΔGI) adult male mice were treated with different concentrations of CPT-11 daily for four consecutive days. Toxicities were evaluated with regard to tissue glucuronidation potential. CPT-11-treated Ugt1(ΔHep) mice showed a similar lethality rate to the CPT-11-treated Ugt1(F/F) mice. However, Ugt1(ΔGI) mice were highly susceptible to CPT-11-induced diarrhea, developing severe and lethal mucositis at much lower CPT-11 doses, a result of the proliferative cell loss and inflammation in the intestinal tract. Comparative expression levels of UGT1A1 in intestinal tumors and normal surrounding tissue are dramatically different, providing for the opportunity to improve therapy by differential gene regulation. Intestinal expression of the UGT1A proteins is critical toward the detoxification of SN-38, whereas induction of the UGT1A1 gene may serve to limit toxicity and improve the efficacy associated with CPT-11 treatment.
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22
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Long MD, Thorne JL, Russell J, Battaglia S, Singh PK, Sucheston-Campbell LE, Campbell MJ. Cooperative behavior of the nuclear receptor superfamily and its deregulation in prostate cancer. Carcinogenesis 2013; 35:262-71. [PMID: 24104552 DOI: 10.1093/carcin/bgt334] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The current study aimed to assess the topology of the nuclear receptor (NR) superfamily in normal prostate epithelial cells and its distortion in prostate cancer. Both in vitro and in silico approaches were utilized to profile NRs expressed in non-malignant RWPE-1 cells, which were subsequently investigated by treating cells with 132 binary NR ligand combinations. Nine significant cooperative interactions emerged including both superadditive [22(R)-hydroxycholesterol and eicosatetraenoic acid] and subadditive [1α,25(OH)2D3 and chenodeoxycholic acid] cellular responses, which could be explained in part by cooperative control of cell-cycle progression and candidate gene expression. In addition, publicly available data were employed to assess NR expression in human prostate tissue. Common and significant loss of NR superfamily expression was established in publicly available data from prostate tumors, in part predicting parallel distortion of targeting microRNA. These findings suggest that the NR superfamily in the prostate cooperatively integrates signals from dietary, hormonal and metabolic cues, and is significantly distorted in prostate cancer.
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Affiliation(s)
- Mark D Long
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
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23
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Liberman A, Wu Z, Barback CV, Viveros R, Blair SL, Ellies LG, Vera DR, Mattrey RF, Kummel AC, Trogler WC. Color Doppler ultrasound and gamma imaging of intratumorally injected 500 nm iron-silica nanoshells. ACS NANO 2013; 7:6367-77. [PMID: 23802554 PMCID: PMC3777724 DOI: 10.1021/nn402507d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Perfluoropentane gas filled iron-silica nanoshells have been developed as stationary ultrasound contrast agents for marking tumors to guide surgical resection. It is critical to establish their long-term imaging efficacy, as well as biodistribution. This work shows that 500 nm Fe-SiO2 nanoshells can be imaged by color Doppler ultrasound over the course of 10 days in Py8119 tumor bearing mice. The 500 nm nonbiodegradable SiO2 and biodegradable Fe-SiO2 nanoshells were functionalized with diethylenetriamine pentaacetic acid (DTPA) ligand and radiolabeled with (111)In(3+) for biodistribution studies in nu/nu mice. The majority of radioactivity was detected in the liver and kidneys following intravenous (IV) administration of nanoshells to healthy animals. By contrast, after nanoshells were injected intratumorally, most of the radioactivity remained at the injection site; however, some nanoshells escaped into circulation and were distributed similarly as those given intravenously. For intratumoral delivery of nanoshells and IV delivery to healthy animals, little difference was seen between the biodistribution of SiO2 and biodegradable Fe-SiO2 nanoshells. However, when nanoshells were administered IV to tumor bearing mice, a significant increase was observed in liver accumulation of SiO2 nanoshells relative to biodegradable Fe-SiO2 nanoshells. Both SiO2 and Fe-SiO2 nanoshells accumulate passively in proportion to tumor mass, during intravenous delivery of nanoshells. This is the first report of the biodistribution following intratumoral injection of any biodegradable silica particle, as well as the first report demonstrating the utility of DTPA-(111)In labeling for studying silica nanoparticle biodistributions.
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Affiliation(s)
- Alexander Liberman
- Materials Science and Engineering Program, University of California,
San Diego
| | - Zhe Wu
- Department of Radiology, University of California, San Diego
| | | | - Robert Viveros
- Department of Nanoengineering, University of California, San
Diego
| | - Sarah L. Blair
- Moores Cancer Center, University of California, San Diego
| | - Lesley G. Ellies
- Department of Pathology, University of California, San Diego, 9500
Gilman Drive, #0358, La Jolla, CA 92093
| | - David R. Vera
- Department of Radiology, University of California, San Diego
| | | | - Andrew C. Kummel
- Department of Chemistry and Biochemistry, University of California,
San Diego
| | - William C. Trogler
- Department of Chemistry and Biochemistry, University of California,
San Diego
- Corresponding Author: William C. Trogler, Professor,
Dept. Chemistry & Biochemistry, University of California San Diego, 9500
Gilman Drive, #0358, La Jolla, CA 92093,
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24
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Gandhi A, Moorthy B, Ghose R. Drug disposition in pathophysiological conditions. Curr Drug Metab 2013; 13:1327-44. [PMID: 22746301 DOI: 10.2174/138920012803341302] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 04/04/2012] [Accepted: 04/19/2012] [Indexed: 12/19/2022]
Abstract
Expression and activity of several key drug metabolizing enzymes (DMEs) and transporters are altered in various pathophysiological conditions, leading to altered drug metabolism and disposition. This can have profound impact on the pharmacotherapy of widely used clinically relevant medications in terms of safety and efficacy by causing inter-individual variabilities in drug responses. This review article highlights altered drug disposition in inflammation and infectious diseases, and commonly encountered disorders such as cancer, obesity/diabetes, fatty liver diseases, cardiovascular diseases and rheumatoid arthritis. Many of the clinically relevant drugs have a narrow therapeutic index. Thus any changes in the disposition of these drugs may lead to reduced efficacy and increased toxicity. The implications of changes in DMEs and transporters on the pharmacokinetics/pharmacodynamics of clinically-relevant medications are also discussed. Inflammation-mediated release of pro-inflammatory cytokines and activation of toll-like receptors (TLRs) are known to play a major role in down-regulation of DMEs and transporters. Although the mechanism by which this occurs is unclear, several studies have shown that inflammation-associated cell-signaling pathway and its interaction with basal transcription factors and nuclear receptors in regulation of DMEs and transporters play a significant role in altered drug metabolism. Altered regulation of DMEs and transporters in a multitude of disease states will contribute towards future development of powerful in vitro and in vivo tools in predicting the drug response and opt for better drug design and development. The goal is to facilitate a better understanding of the mechanistic details underlying the regulation of DMEs and transporters in pathophysiological conditions.
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Affiliation(s)
- Adarsh Gandhi
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston, Houston, TX 77030, USA
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25
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Extra-hepatic cancer represses hepatic drug metabolism via interleukin (IL)-6 signalling. Pharm Res 2013; 30:2270-8. [PMID: 23604979 DOI: 10.1007/s11095-013-1042-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Accepted: 03/27/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE In many cancer patients, the malignancy causes reduced hepatic drug clearance leading to potentially serious complications from the use of anticancer drugs. The mechanisms underlying this phenomenon are poorly understood. We aimed to identify tumor-associated inflammatory pathways that alter drug response and enhance chemotherapy-associated toxicity. METHODS We studied inflammatory pathways involved in extra-hepatic tumor mediated repression of CYP3A, a major hepatic drug metabolizing cytochrome P450 subfamily, using a murine Engelbreth-Holm-Swarm sarcoma model. Studies in IL-6 knockout mice determined the source of elevated IL-6 in tumor-bearing animals and monoclonal antibodies against IL-6 were used to intervene in this inflammatory pathway. RESULTS Our studies confirm elevated plasma IL-6 levels and reveal activation of Jak/Stat and Mapk signalling pathways and acute phase proteins in livers of tumor-bearing mice. Circulating IL-6 was predominantly produced by the tumor xenograft, rather than being host derived. Anti IL-6 antibody intervention partially reversed tumor-mediated inflammation and Cyp3a gene repression. CONCLUSIONS IL-6 is an important player in cancer-related repression of CYP3A-mediated drug metabolism and activation of the acute phase response. Targeting IL-6 in cancer patients may prove an effective approach to alleviating cancer-related phenomena, such as adverse drug-related outcomes commonly associated with cancer chemotherapy.
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26
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Vanwijngaerden YM, Wauters J, Langouche L, Vander Perre S, Liddle C, Coulter S, Vanderborght S, Roskams T, Wilmer A, Van den Berghe G, Mesotten D. Critical illness evokes elevated circulating bile acids related to altered hepatic transporter and nuclear receptor expression. Hepatology 2011; 54:1741-52. [PMID: 21800341 DOI: 10.1002/hep.24582] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
UNLABELLED Hyperbilirubinemia is common during critical illness and is associated with adverse outcome. Whether hyperbilirubinemia reflects intensive care unit (ICU) cholestasis is unclear. Therefore, the aim of this study was to analyze hyperbilirubinemia in conjunction with serum bile acids (BAs) and the key steps in BA synthesis, transport, and regulation by nuclear receptors (NRs). Serum BA and bilirubin levels were determined in 130 ICU and 20 control patients. In liver biopsies messenger RNA (mRNA) expression of BA synthesis enzymes, BA transporters, and NRs was assessed. In a subset (40 ICU / 10 controls) immunohistochemical staining of the transporters and receptors together with a histological evaluation of cholestasis was performed. BA levels were much more elevated than bilirubin in ICU patients. Conjugated cholic acid (CA) and chenodeoxycholic acid (CDCA) were elevated, with an increased CA/CDCA ratio. Unconjugated BA did not differ between controls and patients. Despite elevated serum BA levels, CYP7A1 protein, the rate-limiting enzyme in BA synthesis, was not lowered in ICU patients. Also, protein expression of the apical bile salt export pump (BSEP) was decreased, whereas multidrug resistance-associated protein (MRP) 3 was strongly increased at the basolateral side. This reversal of BA transport toward the sinusoidal blood compartment is in line with the increased serum conjugated BA levels. Immunostaining showed marked down-regulation of nuclear farnesoid X receptor, retinoid X receptor alpha, constitutive androstane receptor, and pregnane X receptor nuclear protein levels. CONCLUSION Failure to inhibit BA synthesis, up-regulate canalicular BA export, and localize pivotal NR in the hepatocytic nuclei may indicate dysfunctional feedback regulation by increased BA levels. Alternatively, critical illness may result in maintained BA synthesis (CYP7A1), reversal of normal BA transport (BSEP/MRP3), and inhibition of the BA sensor (FXR/RXRα) to increase serum BA levels.
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Affiliation(s)
- Yoo-Mee Vanwijngaerden
- Laboratory and Department of Intensive Care Medicine, University Hospitals KU Leuven, Belgium
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