1
|
Tilsed CM, Fisher SA, Nowak AK, Lake RA, Lesterhuis WJ. Cancer chemotherapy: insights into cellular and tumor microenvironmental mechanisms of action. Front Oncol 2022; 12:960317. [PMID: 35965519 PMCID: PMC9372369 DOI: 10.3389/fonc.2022.960317] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/01/2022] [Indexed: 12/12/2022] Open
Abstract
Chemotherapy has historically been the mainstay of cancer treatment, but our understanding of what drives a successful therapeutic response remains limited. The diverse response of cancer patients to chemotherapy has been attributed principally to differences in the proliferation rate of the tumor cells, but there is actually very little experimental data supporting this hypothesis. Instead, other mechanisms at the cellular level and the composition of the tumor microenvironment appear to drive chemotherapy sensitivity. In particular, the immune system is a critical determinant of chemotherapy response with the depletion or knock-out of key immune cell populations or immunological mediators completely abrogating the benefits of chemotherapy in pre-clinical models. In this perspective, we review the literature regarding the known mechanisms of action of cytotoxic chemotherapy agents and the determinants of response to chemotherapy from the level of individual cells to the composition of the tumor microenvironment. We then summarize current work toward the development of dynamic biomarkers for response and propose a model for a chemotherapy sensitive tumor microenvironment.
Collapse
Affiliation(s)
- Caitlin M. Tilsed
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Nedlands, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
| | - Scott A. Fisher
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Nedlands, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
| | - Anna K. Nowak
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Nedlands, WA, Australia
- Medical School, University of Western Australia, Crawley, WA, Australia
- Department of Medical Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
| | - Richard A. Lake
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Nedlands, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
| | - W. Joost Lesterhuis
- National Centre for Asbestos Related Diseases, Institute for Respiratory Health, Nedlands, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Crawley, WA, Australia
- Telethon Kids Institute, University of Western Australia, West Perth, WA, Australia
- *Correspondence: W. Joost Lesterhuis,
| |
Collapse
|
2
|
Steenaard RV, Ettaieb MHT, Kerkhofs TMA, Haak HR. How close are we to personalized mitotane dosing in the treatment of adrenocortical carcinoma? State of the art and future perspectives. Expert Opin Drug Metab Toxicol 2021; 17:677-683. [PMID: 33886381 DOI: 10.1080/17425255.2021.1921146] [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: 10/21/2022]
Abstract
INTRODUCTION Mitotane is the only drug registered specifically for adrenocortical carcinoma. Finding the optimal dose for a patient is difficult due to large differences in bioavailability, toxicity and effect. We therefore look to improve personalized dosing of mitotane. AREAS COVERED We searched PubMed for studies related to mitotane dosing, pharmacokinetics, pharmacogenetics and combination therapy. Comparison of different dosing strategies have not resulted in an optimal advice. Several computerized pharmacokinetic models have been proposed to predict plasma levels. The current pharmacokinetic models do not explain the full variance in plasma levels. Pharmacogenetics have been proposed to find the unexplained variance. Studies on combination therapy have not yet led to a potential dose adjustment for mitotane. EXPERT OPINION Computerized pharmacokinetics models are promising tools to predict plasma levels, further validation is needed. Pharmacogenetics are introduced in these models, but more research is required before clinical application. We believe that in the near future, personalized mitotane dosage will be aided by a validated web-based pharmacokinetic model with good predictive ability based primarily on clinical characteristics, adjustable for actual plasma levels and dosage.
Collapse
Affiliation(s)
- Rebecca V Steenaard
- Department of Internal Medicine, Máxima MC, Veldhoven, Eindhoven, The Netherlands.,Maastricht University, CAPHRI School for Public Health and Primary Care, Ageing and Long-Term Care, Maastricht, The Netherlands
| | - Madeleine H T Ettaieb
- Department of Internal Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Thomas M A Kerkhofs
- Department of Internal Medicine, Division of Medical Oncology, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Harm R Haak
- Department of Internal Medicine, Máxima MC, Veldhoven, Eindhoven, The Netherlands.,Maastricht University, CAPHRI School for Public Health and Primary Care, Ageing and Long-Term Care, Maastricht, The Netherlands.,Department of Internal Medicine, Division of General Internal Medicine, Maastricht University Medical Centre+, Maastricht, The Netherlands
| |
Collapse
|
3
|
Fragni M, Palma Lopez LP, Rossini E, Abate A, Cosentini D, Salvi V, Vezzoli S, Poliani PL, Bosisio D, Hantel C, Tiberio GAM, Grisanti S, Memo M, Terzolo M, Berruti A, Sigala S. In vitro cytotoxicity of cabazitaxel in adrenocortical carcinoma cell lines and human adrenocortical carcinoma primary cell cultures ☆. Mol Cell Endocrinol 2019; 498:110585. [PMID: 31536779 DOI: 10.1016/j.mce.2019.110585] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 08/23/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022]
Abstract
Adrenocortical cancer (ACC) is a rare and aggressive malignancy with a poor prognosis. The overall 5-year survival rate of patients with ENS@T stage IV ACC is less than 15%. Systemic antineoplastic therapies have a limited efficacy and new drugs are urgently needed. Human ACC primary cultures and cell lines were used to assess the cytotoxic effect of cabazitaxel, and the role of P-glycoprotein in mediating this effect. Cabazitaxel reduced ACC cell viability, both in ACC cell lines and in ACC primary cell cultures. Molecular and pharmacological targeting of ABCB1/P-gp did not modify its cytotoxic effect in NCI-H295R cells, while it increased the paclitaxel-induced toxicity. Cabazitaxel modified the expression of proteins involved in cellular physiology, such as apoptosis and cell cycle regulation. The drug combination cabazitaxel/mitotane exerted an additive/moderate synergism in different ACC cell experimental models. These results provide a rationale for testing cabazitaxel in a clinical study.
Collapse
Affiliation(s)
- Martina Fragni
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Lilian Patricia Palma Lopez
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Elisa Rossini
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Andrea Abate
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Deborah Cosentini
- Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, Public Health, University of Brescia and ASST Spedali Civili di Brescia, Brescia, Italy
| | - Valentina Salvi
- Section of Oncology and Experimental Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Sara Vezzoli
- Forensic Medicine Unit, ASST Spedali Civili di Brescia, Brescia, Italy
| | - Pietro Luigi Poliani
- Pathology Unit, Department of Molecular and Translational Medicine, University of Brescia at ASST Spedali Civili di Brescia, Brescia, Italy
| | - Daniela Bosisio
- Section of Oncology and Experimental Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Constanze Hantel
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitätsspital Zürich, Zurich, Switzerland; Medizinische Klinik und Poliklinik III, University Hospital Carl Gustav Carus Dresden, Germany
| | - Guido A M Tiberio
- Surgical Clinic, Department of Clinical and Experimental Sciences, University of Brescia at ASST Spedali Civili di Brescia, Brescia, Italy
| | - Salvatore Grisanti
- Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, Public Health, University of Brescia and ASST Spedali Civili di Brescia, Brescia, Italy
| | - Maurizio Memo
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Massimo Terzolo
- Department of Clinical and Biological Sciences, University of Turin, Internal Medicine 1, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Alfredo Berruti
- Oncology Unit, Department of Medical and Surgical Specialties, Radiological Sciences, Public Health, University of Brescia and ASST Spedali Civili di Brescia, Brescia, Italy.
| | - Sandra Sigala
- Section of Pharmacology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| |
Collapse
|
4
|
Creemers SG, van Koetsveld PM, De Herder WW, Dogan F, Franssen GJH, Feelders RA, Hofland LJ. MDR1 inhibition increases sensitivity to doxorubicin and etoposide in adrenocortical cancer. Endocr Relat Cancer 2019; 26:367-378. [PMID: 30650062 DOI: 10.1530/erc-18-0500] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 01/03/2019] [Indexed: 12/17/2022]
Abstract
Chemotherapy for adrenocortical carcinoma (ACC) has limited efficacy and is accompanied by severe toxicity. This lack of effectiveness has been associated with high tumoral levels of the multidrug resistance (MDR) pump P-glycoprotein (P-gp), encoded by the MDR1 gene. In this study, effects of P-gp inhibition on the sensitivity of ACC cells to cytotoxic drugs were evaluated. MDR1 mRNA and P-gp expression were determined in human adrenal tissues and cell lines. H295R, HAC15 and SW13 cells were treated with mitotane, doxorubicin, etoposide, cisplatin and streptozotocin, with or without the P-gp inhibitors verapamil and tariquidar. Cell growth and surviving fraction of colonies were assessed. MDR1 mRNA and P-gp protein expression were lower in ACCs than in adrenocortical adenomas (P < 0.0001; P < 0.01, respectively). MDR1 and P-gp expression were positively correlated in ACC (P < 0.0001, ρ = 0.723). Mitotane, doxorubicin, cisplatin and etoposide dose dependently inhibited cell growth in H295R, HAC15 and SW13. Tariquidar, and in H295R also verapamil, increased the response of HAC15 and H295R to doxorubicin (6.3- and 7.5-fold EC50 decrease in H295R, respectively; all P < 0.0001). Sensitivity to etoposide was increased in H295R and HAC15 by verapamil and tariquidar (all P < 0.0001). Findings were confirmed when assessing colony formation. We show that cytotoxic drugs, except streptozotocin, used for ACC treatment, inhibit ACC cell growth and colony formation at clinically achievable concentrations. P-gp inhibition increases sensitivity to doxorubicin and etoposide, suggesting that MDR1 is involved in sensitivity to these drugs and could be a potential target for cytotoxic treatment improvement in ACC.
Collapse
Affiliation(s)
- S G Creemers
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - P M van Koetsveld
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - W W De Herder
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - F Dogan
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - G J H Franssen
- Department of Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - R A Feelders
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - L J Hofland
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| |
Collapse
|
5
|
Montgomery MR, Hull EE. Alterations in the glycome after HDAC inhibition impact oncogenic potential in epigenetically plastic SW13 cells. BMC Cancer 2019; 19:79. [PMID: 30651077 PMCID: PMC6335691 DOI: 10.1186/s12885-018-5129-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/23/2018] [Indexed: 02/07/2023] Open
Abstract
Background Defects in the type and degree of cellular glycosylation impact oncogenesis on multiple levels. Although the type of glycosylation is determined by protein sequence encoded by the genome, the extent and modifications of glycosylation depends on the activity of biosynthetic enzymes and recent data suggests that the glycome is also subject to epigenetic regulation. This study focuses on the ability of HDAC inhibition to alter glycosylation and to lead to pro-oncogenic alterations in the glycome as assessed by metastatic potential and chemoresistance. Methods Epigenetically plastic SW13 adrenocortical carcinoma cells were treated with FK228, an HDAC inhibitor with high affinity for HDAC1 and, to a lesser extent, HDAC2. In comparing HDAC inhibitor treated and control cells, differential expression of glycome-related genes were assessed by microarray. Differential glycosylation was then assessed by lectin binding arrays and the ability of cellular proteins to bind to glycans was assessed by glycan binding arrays. Differential sensitivity to paclitaxel, proliferation, and MMP activity were also assessed. Results Treatment with FK228 alters expression of enzymes in the biosynthetic pathways for a large number of glycome related genes including enzymes in all major glycosylation pathways and several glycan binding proteins. 84% of these differentially expressed glycome-related genes are linked to cancer, some as prognostic markers and others contributing basic oncogenic functions such as metastasis or chemoresistance. Glycan binding proteins also appear to be differentially expressed as protein extracts from treated and untreated cells show differential binding to glycan arrays. The impact of differential mRNA expression of glycosylation enzymes was documented by differential lectin binding. However, the assessment of changes in the glycome is complicated by the fact that detection of differential glycosylation through lectin binding is dependent on the methods used to prepare samples as protein-rich lysates show different binding than fixed cells in several cases. Paralleling the alterations in the glycome, treatment of SW13 cells with FK228 increases metastatic potential and reduces sensitivity to paclitaxel. Conclusions The glycome is substantially altered by HDAC inhibition and these changes may have far-reaching impacts on oncogenesis. Electronic supplementary material The online version of this article (10.1186/s12885-018-5129-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- McKale R Montgomery
- College of Human Sciences, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Elizabeth E Hull
- Biomedical Sciences Program, College of Graduate Studies, Midwestern University, Glendale, AZ, 85308, USA.
| |
Collapse
|
6
|
Abstract
Background Adrenal cavernous hemangiomas are very rare benign tumors that usually present as incidental findings on abdominal imaging. Preoperative differential diagnosis from other benign or malignant adrenal neoplasms may be challenging. Case presentation A 70-year old man was referred for an 8-cm abdominal mass incidentally discovered on a contrast-enhanced computed tomography (CT) performed to investigate a pulmonary nodule. Biochemical tests ruled out any endocrine dysfunction and iodine 123 metaiodobenzylguanidine whole body scintiscan single-photon emission CT excluded a pheocromocitoma. Findings on magnetic resonance imaging were non-specific and the patient was elected for a left adrenalectomy. Histopathological diagnosis revealed a cavernous hemangioma. A portion of the resected tissue was tested for drug sensitivity to mitotane, doxorubicin, and sunitinib. Conclusions Adrenal hemangioma is a rare disease but should be included in the differential diagnosis of adrenal tumors. The surgical resection is generally required to exclude malignant disease, resolve pressure-related symptoms, and prevent retroperitoneal hemorrhage. Although specific features in diagnostic imaging are often lacking, if the diagnosis is established preoperatively a laparoscopic adrenalectomy can be performed due to the benign nature of the lesion. Doxorubicin and sunitinib were both capable of reducing primary culture cell viability, this suggest that similar drugs may be useful in the medical treatment of adrenal hemangiomas.
Collapse
|
7
|
Di Pasquale C, Gentilin E, Falletta S, Bellio M, Buratto M, Degli Uberti E, Chiara Zatelli M. PI3K/Akt/mTOR pathway involvement in regulating growth hormone secretion in a rat pituitary adenoma cell line. Endocrine 2018; 60:308-316. [PMID: 29080043 DOI: 10.1007/s12020-017-1432-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/18/2017] [Indexed: 01/07/2023]
Abstract
PURPOSE Insulin-like growth factor 1 (IGF1) controls growth hormone (GH) secretion via a negative feed-back loop that may disclose novel mechanisms possibly useful to control GH hyper-secretion. Our aim was to understand whether PI3K/Akt/mTOR pathway is involved in IGF1 negative feedback on GH secretion. METHODS Cell viability, GH secretion, Akt, and Erk 1/2 phosphorylation levels in the rat GH3 cell line were assessed under treatment with IGF1 and/or everolimus, an mTOR inhitior. RESULTS We found that IGF1 improves rat GH3 somatotroph cell viability via the PI3K/Akt/mTOR pathway and confirmed that IGF1 exerts a negative feedback on GH secretion by a transcriptional mechanism. We demonstrated that the negative IGF1 loop on GH secretion requires Akt activation that seems to play a pivotal role in the control of GH secretion. Furthermore, Akt activation is independent of PI3K and probably mediated by mTORC2. In addition, we found that Erk 1/2 is not involved in GH3 cell viability regulation, but may have a role in controlling GH secretion, independently of IGF1. CONCLUSION Our data confirm that mTOR inhibitors may be useful to reduce pituitary adenoma cell viability, while Erk 1/2 pathway may be considered as a useful therapeutic target to control GH secretion. Our results open the field for further studies searching for effective drugs to control GH hyper-secretion.
Collapse
Affiliation(s)
- Carmelina Di Pasquale
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
| | - Erica Gentilin
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
| | - Simona Falletta
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
| | - Mariaenrica Bellio
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
| | - Mattia Buratto
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
| | - Ettore Degli Uberti
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy
- Laboratorio in rete del Tecnopolo "Tecnologie delle terapie avanzate" (LTTA) of the University of Ferrara, Ferrara, Italy
| | - Maria Chiara Zatelli
- Department of Medical Sciences, Section of Endocrinology & Internal Medicine, University of Ferrara, Ferrara, Italy.
- Laboratorio in rete del Tecnopolo "Tecnologie delle terapie avanzate" (LTTA) of the University of Ferrara, Ferrara, Italy.
| |
Collapse
|
8
|
Mechanisms of P-Glycoprotein Modulation by Semen Strychni Combined with Radix Paeoniae Alba. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:1743870. [PMID: 29234368 PMCID: PMC5661092 DOI: 10.1155/2017/1743870] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 08/02/2017] [Indexed: 11/29/2022]
Abstract
Semen Strychni has been extensively used as a Chinese herb, but its therapeutic window is narrowed by the strong toxicity of the compound, which limits its effectiveness. Radix Paeoniae Alba has been reported to reduce the toxic effects and increase the therapeutic effects of Semen Strychni, but the underlying mechanism remains unknown. This research aimed to explore the mechanism through which P-glycoprotein (P-gp) is modulated by Semen Strychni combined with Radix Paeoniae Alba in vitro. An MTT assay was used to study cytotoxicity in an MDCK-MDR1 cell model. Rh123 efflux and accumulation were measured to assess P-gp function. The expression levels of MDR1 mRNA and P-gp protein in MDCK-MDR1 cells were investigated. A P-gp ATPase activity assay kit was applied to detect the effect on P-gp ATPase activity. Semen Strychni combined with Radix Paeoniae Alba could induce P-gp-mediated drug transport by inhibiting brucine and strychnine transport in MDCK-MDR1 cells, enhancing the P-gp efflux function, upregulating the P-gp expression and MDR1 mRNA levels, and stimulating P-gp ATPase activity.
Collapse
|
9
|
Screening of FDA-Approved Drugs for Inhibitors of Japanese Encephalitis Virus Infection. J Virol 2017; 91:JVI.01055-17. [PMID: 28814523 PMCID: PMC5640845 DOI: 10.1128/jvi.01055-17] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 08/11/2017] [Indexed: 12/02/2022] Open
Abstract
Japanese encephalitis virus (JEV), an arthropod-borne flavivirus, is a major cause of acute viral encephalitis in humans. No approved drug is available for the specific treatment of JEV infections, and the available vaccines are not effective against all clinical JEV isolates. In the study described here, a high-throughput screening of an FDA-approved drug library for inhibitors of JEV was performed. Five hit drugs that inhibited JEV infection with a selective index of >10 were identified. The antiviral activities of these five hit drugs against other flavivirus, including Zika virus, were also validated. As three of the five hit drugs were calcium inhibitors, additional types of calcium inhibitors that confirmed that calcium is essential for JEV infection, most likely during viral replication, were utilized. Adaptive mutant analysis uncovered that replacement of Q130, located in transmembrane domain 3 of the nonstructural NS4B protein, which is relatively conserved in flaviviruses, with R or K conferred JEV resistance to manidipine, a voltage-gated Ca2+ channel (VGCC) inhibitor, without an apparent loss of the viral growth profile. Furthermore, manidipine was indicated to protect mice against JEV-induced lethality by decreasing the viral load in the brain, while it abrogated the histopathological changes associated with JEV infection. This study provides five antiflavivirus candidates and identifies cytoplasmic calcium to be a novel antiviral target for the treatment of JEV infection. The findings reported here provide therapeutic possibilities for combating infections caused by flaviviruses. IMPORTANCE No approved therapy for the treatment of Japanese encephalitis virus infection is currently available. Repurposing of approved drugs would accelerate the development of a therapeutic stratagem. In this study, we screened a library of FDA-approved drugs and identified five hit drugs, especially calcium inhibitors, exerting antiflavivirus activity that blocked viral replication. The in vivo efficacy and toxicity of manidipine were investigated with a mouse model of JEV infection, and the viral target was identified by generating an adaptive mutant.
Collapse
|
10
|
Gentilin E, Minoia M, Bondanelli M, Tagliati F, Degli Uberti EC, Zatelli MC. Growth Hormone differentially modulates chemoresistance in human endometrial adenocarcinoma cell lines. Endocrine 2017; 56:621-632. [PMID: 27585662 DOI: 10.1007/s12020-016-1085-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 08/09/2016] [Indexed: 02/06/2023]
Abstract
Growth Hormone may influence neoplastic development of endometrial epithelium towards endometrial adenocarcinoma, which is one of the most occurring tumors in acromegalic patients. Since chemoresistance often develops in advanced endometrial adenocarcinoma, we investigated whether Growth Hormone might influence the development of chemoresistance to drugs routinely employed in endometrial adenocarcinoma treatment, such as Doxorubicin, Cisplatin, and Paclitaxel. Growth Hormone and Growth Hormone receptor expression was assessed by immunofluorescence in two endometrial adenocarcinoma cell lines, AN3 CA and HEC-1-A cells. Growth Hormone effects were assessed investigating cell viability, caspase3/7 activation, ERK1/2, and protein kinase C delta protein expression. AN3 CA and HEC-1-A cells display Growth Hormone and Growth Hormone receptor. Growth Hormone does not influence cell viability in both cells lines, but significantly reduces caspase 3/7 activation in AN3 CA cells, an effect blocked by a Growth Hormone receptor antagonist. Growth Hormone rescues AN3 CA cells from the inhibitory effects of Doxorubicin and Cisplatin on cell viability, while it has no effect on Paclitaxel. Growth Hormone does not influence the pro-apoptotic effects of Doxorubicin, but is capable of rescuing AN3 CA cells from the pro-apoptotic effects of Cisplatin. On the other hand, Growth Hormone did not influence the effects of Doxorubicin and Paclitaxel on HEC-1A cell viability. The protective action of Growth Hormone towards the effects of Doxorubicin may be mediated by ERK1/2 activation, while the pro-apoptotic effects of Cisplatin may be mediated by protein kinase C delta inhibition. All together our results indicate that Growth Hormone may differentially contribute to endometrial adenocarcinoma chemoresistance. This may provide new insights on novel therapies against endometrial adenocarcinoma chemoresistant aggressive tumors.
Collapse
Affiliation(s)
- Erica Gentilin
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Mariella Minoia
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Marta Bondanelli
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Federico Tagliati
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Ettore C Degli Uberti
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy
- Laboratorio in rete del Tecnopolo "Tecnologie delle terapie avanzate" (LTTA) of the University of Ferrara, Ferrara, Italy
| | - Maria Chiara Zatelli
- Section of Endocrinology and Internal Medicine, Dept. of Medical Sciences, University of Ferrara, Ferrara, Italy.
- Laboratorio in rete del Tecnopolo "Tecnologie delle terapie avanzate" (LTTA) of the University of Ferrara, Ferrara, Italy.
| |
Collapse
|
11
|
Stigliano A, Cerquetti L, Lardo P, Petrangeli E, Toscano V. New insights and future perspectives in the therapeutic strategy of adrenocortical carcinoma (Review). Oncol Rep 2017; 37:1301-1311. [PMID: 28184938 DOI: 10.3892/or.2017.5427] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 12/20/2016] [Indexed: 11/06/2022] Open
Abstract
Adrenocortical carcinoma (ACC) is a rare endocrine malignancy with an incidence ranging from 0.7 to 2.0 cases/million people per year. Hypercortisolism represents the most common clinical presentation in many patients although, less frequently, some ACC secreting androgens and estrogens are even more pathognomonic compared to cortisol secretion. Currently, radical surgery, when feasible, is still the only curative therapy. Mitotane, an adrenolytic drug, is used in the adjuvant setting and in combination with chemotherapy drugs in metastatic disease. The use of radiotherapy remains controversial, being indicated only in selected cases. New targeted therapies, such as insulin growth factor-1 (IGF-1), mammalian-target of rapamycin (m-TOR), vascular endothelial growth factor (VEGF) inhibitors and others, have recently been investigated with disappointing clinical results. The partial effectiveness of current treatments mandates the need for new therapeutic strategies against this tumor.
Collapse
Affiliation(s)
- Antonio Stigliano
- Endocrinology, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Rome, Italy
| | - Lidia Cerquetti
- Endocrinology, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Rome, Italy
| | - Pina Lardo
- Endocrinology, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Rome, Italy
| | - Elisa Petrangeli
- CNR, Institute of Molecular Biology and Pathology, Sapienza University of Rome, 00161 Rome, Italy
| | - Vincenzo Toscano
- Endocrinology, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, 00189 Rome, Italy
| |
Collapse
|
12
|
Murtha TD, Korah R, Carling T. Suppression of cytochrome P450 4B1: An early event in adrenocortical tumorigenesis. Surgery 2016; 161:257-263. [PMID: 27865598 DOI: 10.1016/j.surg.2016.04.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/30/2016] [Accepted: 04/13/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Adrenocortical carcinoma is a rare neoplasm with a poor prognosis. Conversely, adrenocortical adenomas are common and benign. Despite their shared histologic origin, little evidence exists to suggest that adrenocortical adenoma arises from adrenocortical carcinoma. Recent genetic analyses of adrenocortical carcinoma have shown recurrent gene copy deletion of CYP4B1, a cytochrome P450 isozyme. This study investigates a potential role for CYP4B1 in modulating adrenocortical tumorigenesis and/or conferring chemoresistance to adrenocortical carcinomas. METHODS Using TaqMan, real-time quantitative polymerase chain reaction techniques, we investigated CYP4B1 expression in normal adrenal cortex (n = 10), histologically confirmed adrenocortical adenomas (n = 10), and adrenocortical carcinomas (n = 10). Adrenocortical carcinoma cell lines were enforced to express CYP4B1, and effects on cell death and enhanced mitotane and cisplatin sensitivity were tested. RESULTS Gene expression analyses demonstrated suppression of CYP4B1 in 100% of both the adrenocortical adenomas (10/10) and adrenocortical carcinomas (10/10) tested. Average relative expression of CYP4B1 was decreased at 0.19 (0.01-0.50; P < .01) in adrenocortical adenomas and nearly absent in adrenocortical carcinomas (0.01; 0.00-0.05; P < .01). Protein expression correlated with mRNA expression. Ectopic expression of CYP4B1 promoted cytotoxicity and increased chemosensitivity in adrenocortical carcinoma cell lines. CONCLUSION CYP4B1 is silenced in both benign and malignant adrenocortical tumors and may contribute to tumorigenesis and chemoresistance. Sensitization of adrenocortical carcinoma cells engineered to overexpress CYP4B1 further supports this notion.
Collapse
Affiliation(s)
- Timothy D Murtha
- Department of Surgery and Yale Endocrine Neoplasia Laboratory, Yale School of Medicine, New Haven, CT
| | - Reju Korah
- Department of Surgery and Yale Endocrine Neoplasia Laboratory, Yale School of Medicine, New Haven, CT
| | - Tobias Carling
- Department of Surgery and Yale Endocrine Neoplasia Laboratory, Yale School of Medicine, New Haven, CT.
| |
Collapse
|
13
|
Zhao J, Zeng Z, Sun J, Zhang Y, Li D, Zhang X, Liu M, Wang X. A Novel Model of P-Glycoprotein Inhibitor Screening Using Human Small Intestinal Organoids. Basic Clin Pharmacol Toxicol 2016; 120:250-255. [PMID: 27657920 DOI: 10.1111/bcpt.12680] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 09/19/2016] [Indexed: 01/31/2023]
Abstract
P-glycoprotein (P-gp), an important efflux transporter in intestine, regulates the bioavailability of orally taken drugs. To develop an in vitro model that preferably mimics the physiological microenvironment of human intestine, we employed the three-dimensionally (3D) cultured organoids from human normal small intestinal epithelium. It was observed that the intestinal crypts could efficiently form cystic organoid structure with the extension of culture time. Furthermore, the physiological expression of ABCB1 was detected at both mRNA and protein levels in cultured organoids. Rhodamine 123 (Rh123), a typical substrate of P-gp, was actively transported across 3D organoids and accumulated in the luminal space. This transport process was also inhibited by verapamil and mitotane. In summary, the above-mentioned model based on human small intestinal 3D organoids is suitable to imitate the small intestinal epithelium and could be used as a novel in vitro model especially for P-gp inhibitor screening.
Collapse
Affiliation(s)
- Junfang Zhao
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhiyang Zeng
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Jialiang Sun
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,Shanghai Fengxian District Central Hospital, Shanghai, China
| | - Yuanjin Zhang
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Dali Li
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Xueli Zhang
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,Shanghai Fengxian District Central Hospital, Shanghai, China
| | - Mingyao Liu
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,Department of Molecular and Cellular Medicine, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX, USA
| | - Xin Wang
- East China Normal University and Shanghai Fengxian District Central Hospital Joint Research Center for Translational Medicine, Shanghai Key laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| |
Collapse
|
14
|
Overcoming ABC transporter-mediated multidrug resistance: Molecular mechanisms and novel therapeutic drug strategies. Drug Resist Updat 2016; 27:14-29. [DOI: 10.1016/j.drup.2016.05.001] [Citation(s) in RCA: 452] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 04/24/2016] [Accepted: 05/06/2016] [Indexed: 12/15/2022]
|
15
|
Scheidt HA, Haralampiev I, Theisgen S, Schirbel A, Sbiera S, Huster D, Kroiss M, Müller P. The adrenal specific toxicant mitotane directly interacts with lipid membranes and alters membrane properties depending on lipid composition. Mol Cell Endocrinol 2016; 428:68-81. [PMID: 27002491 DOI: 10.1016/j.mce.2016.03.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/26/2016] [Accepted: 03/16/2016] [Indexed: 11/20/2022]
Abstract
Mitotane (o,p'.-DDD) is an orphan drug approved for the treatment of adrenocortical carcinoma. The mechanisms, which are responsible for this activity of the drug, are not completely understood. It can be hypothesized that an impact of mitotane is mediated by the interaction with cellular membranes. However, an interaction of mitotane with (lipid) membranes has not yet been investigated in detail. Here, we characterized the interaction of mitotane and its main metabolite o,p'-dichlorodiphenyldichloroacetic acid (o,p'-DDA) with lipid membranes by applying a variety of biophysical approaches of nuclear magnetic resonance, electron spin resonance, and fluorescence spectroscopy. We found that mitotane and o,p'-DDA bind to lipid membranes by inserting into the lipid-water interface of the bilayer. Mitotane but not o,p'-DDA directly causes a disturbance of bilayer structure leading to an increased permeability of the membrane for polar molecules. Mitotane induced alterations of the membrane integrity required the presence of phosphatidylethanolamine and/or cholesterol. Collectively, our data for the first time characterize the impact of mitotane on the lipid membrane structure and dynamics, which may contribute to a better understanding of specific mitotane effects and side effects.
Collapse
Affiliation(s)
- Holger A Scheidt
- University of Leipzig, Institute of Medical Physics and Biophysics, Härtelstr. 16-18, 04107 Leipzig, Germany
| | - Ivan Haralampiev
- Humboldt University Berlin, Department of Biology, Invalidenstr. 42, 10115 Berlin, Germany
| | - Stephan Theisgen
- University of Leipzig, Institute of Medical Physics and Biophysics, Härtelstr. 16-18, 04107 Leipzig, Germany
| | - Andreas Schirbel
- University Hospital Würzburg, Department of Nuclear Medicine, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Silviu Sbiera
- University Hospital Würzburg, Department of Internal Medicine I, Endocrinology and Diabetes Unit, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Daniel Huster
- University of Leipzig, Institute of Medical Physics and Biophysics, Härtelstr. 16-18, 04107 Leipzig, Germany
| | - Matthias Kroiss
- University Hospital Würzburg, Department of Internal Medicine I, Endocrinology and Diabetes Unit, Oberdürrbacher Straße 6, 97080 Würzburg, Germany
| | - Peter Müller
- Humboldt University Berlin, Department of Biology, Invalidenstr. 42, 10115 Berlin, Germany.
| |
Collapse
|
16
|
Zhang Y, Zeng Z, Zhao J, Li D, Liu M, Wang X. Measurement of Rhodamine 123 in Three-Dimensional Organoids: A Novel Model for P-Glycoprotein Inhibitor Screening. Basic Clin Pharmacol Toxicol 2016; 119:349-52. [PMID: 27060462 DOI: 10.1111/bcpt.12596] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 03/30/2016] [Indexed: 01/21/2023]
Abstract
P-glycoprotein (P-gp), as the most important efflux transporter in intestines, plays the key role to determine the bioavailability of many drugs. The three-dimensional (3D) organoid model is suitable to imitate small intestinal epithelium. In this study, a rapid, sensitive and efficient method to measure rhodamine 123 (Rh123, P-gp substrate) in 3D organoids was developed to analyse P-gp-mediated drug transport. Ultrasonic cell disruptor was used to smash the organoid, and automatic microplate reader was used for detecting the concentration of Rh123 (λex /λem = 485/520 nm). Moreover, verapamil, quinidine and mitotane were used to make validation about this newly developed approach. All three P-gp inhibitors significantly inhibited the transport of Rh123 into 3D organoids. Therefore, the above-mentioned method could serve as a new model for P-gp inhibitor screening in a high-throughput way.
Collapse
Affiliation(s)
- Yuanjin Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhiyang Zeng
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Junfang Zhao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Dali Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Mingyao Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,Department of Molecular and Cellular Medicine, Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX, USA
| | - Xin Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China. ,
| |
Collapse
|
17
|
The aurora kinase inhibitor VX-680 shows anti-cancer effects in primary metastatic cells and the SW13 cell line. Invest New Drugs 2016; 34:531-40. [DOI: 10.1007/s10637-016-0358-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 05/06/2016] [Indexed: 12/18/2022]
|
18
|
Postlewait LM, Ethun CG, Tran TB, Prescott JD, Pawlik TM, Wang TS, Glenn J, Hatzaras I, Shenoy R, Phay JE, Keplinger K, Fields RC, Jin LX, Weber SM, Salem A, Sicklick JK, Gad S, Yopp AC, Mansour JC, Duh QY, Seiser N, Solorzano CC, Kiernan CM, Votanopoulos KI, Levine EA, Staley CA, Poultsides GA, Maithel SK. Outcomes of Adjuvant Mitotane after Resection of Adrenocortical Carcinoma: A 13-Institution Study by the US Adrenocortical Carcinoma Group. J Am Coll Surg 2016; 222:480-90. [PMID: 26775162 PMCID: PMC4957938 DOI: 10.1016/j.jamcollsurg.2015.12.013] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 12/11/2015] [Indexed: 11/18/2022]
Abstract
BACKGROUND Current treatment guidelines recommend adjuvant mitotane after resection of adrenocortical carcinoma with high-risk features (eg, tumor rupture, positive margins, positive lymph nodes, high grade, elevated mitotic index, and advanced stage). Limited data exist on the outcomes associated with these practice guidelines. STUDY DESIGN Patients who underwent resection of adrenocortical carcinoma from 1993 to 2014 at the 13 academic institutions of the US Adrenocortical Carcinoma Group were included. Factors associated with mitotane administration were determined. Primary end points were recurrence-free survival (RFS) and overall survival (OS). RESULTS Of 207 patients, 88 (43%) received adjuvant mitotane. Receipt of mitotane was associated with hormonal secretion (58% vs 32%; p = 0.001), advanced TNM stage (stage IV: 42% vs 23%; p = 0.021), adjuvant chemotherapy (37% vs 5%; p < 0.001), and adjuvant radiation (17% vs 5%; p = 0.01), but was not associated with tumor rupture, margin status, or N-stage. Median follow-up was 44 months. Adjuvant mitotane was associated with decreased RFS (10.0 vs 27.9 months; p = 0.007) and OS (31.7 vs 58.9 months; p = 0.006). On multivariable analysis, mitotane was not independently associated with RFS or OS, and margin status, advanced TNM stage, and receipt of chemotherapy were associated with survival. After excluding all patients who received chemotherapy, adjuvant mitotane remained associated with decreased RFS and similar OS; multivariable analyses again showed no association with recurrence or survival. Stage-specific analyses in both cohorts revealed no association between adjuvant mitotane and improved RFS or OS. CONCLUSIONS When accounting for stage and adverse tumor and treatment-related factors, adjuvant mitotane after resection of adrenocortical carcinoma is not associated with improved RFS or OS. Current guidelines should be revisited and prospective trials are needed.
Collapse
Affiliation(s)
- Lauren M Postlewait
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Cecilia G Ethun
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Thuy B Tran
- Department of Surgery, Stanford University School of Medicine, Stanford, CA
| | - Jason D Prescott
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Timothy M Pawlik
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
| | - Tracy S Wang
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - Jason Glenn
- Department of Surgery, Medical College of Wisconsin, Milwaukee, WI
| | - Ioannis Hatzaras
- Department of Surgery, New York University School of Medicine, New York, NY
| | - Rivfka Shenoy
- Department of Surgery, New York University School of Medicine, New York, NY
| | - John E Phay
- Department of Surgery, The Ohio State University, Columbus, OH
| | - Kara Keplinger
- Department of Surgery, The Ohio State University, Columbus, OH
| | - Ryan C Fields
- Department of Surgery, Washington University School of Medicine, St Louis, MO
| | - Linda X Jin
- Department of Surgery, Washington University School of Medicine, St Louis, MO
| | - Sharon M Weber
- Department of General Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Ahmed Salem
- Department of General Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Jason K Sicklick
- Department of Surgery, University of California San Diego, San Diego, CA
| | - Shady Gad
- Department of Surgery, University of California San Diego, San Diego, CA
| | - Adam C Yopp
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - John C Mansour
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX
| | - Quan-Yang Duh
- Department of Surgery, University of California San Francisco, San Francisco, CA
| | - Natalie Seiser
- Department of Surgery, University of California San Francisco, San Francisco, CA
| | | | | | | | - Edward A Levine
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC
| | - Charles A Staley
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA
| | | | - Shishir K Maithel
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA.
| |
Collapse
|
19
|
Liu X, Li L, Li J, Cheng Y, Chen J, Shen M, Zhang S, Wei H. Insulin resistance contributes to multidrug resistance in HepG2 cells via activation of the PERK signaling pathway and upregulation of Bcl-2 and P-gp. Oncol Rep 2016; 35:3018-24. [PMID: 26935266 DOI: 10.3892/or.2016.4632] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 01/11/2016] [Indexed: 11/06/2022] Open
Abstract
Liver tumorigenesis frequently causes insulin resistance which may be used as an independent risk factor for evaluation of survival and post-surgery relapse of liver cancer patients. In the present study, HepG2/IR, an insulin resistant HepG2 cell line, was established by exposing HepG2 cells to 0.5 µmol/l of insulin for 72 h, and comparison of HepG2/IR with the parental HepG2 cells indicated that the HepG2/IR cells showed significantly enhanced resistance to the most frequently used chemotherapeutics for solid tumors, such as cisplatin, 5-fluorouracil, vincristine and mitomycin. Flow cytometric analysis of cisplatin-treated HepG2/IR cells showed a significantly decreased hypodiploid peak and a significantly downregulated expression level of pro-apoptotic protein caspase-3 compared with the parental HepG2 cells. Our data further showed swollen endoplasmic reticulum (ER) in the cisplatin-treated HepG2/IR cells with significantly increased levels of glucose-regulated protein 78 (GRP78), phosphorylated protein kinase R-like ER kinase (p-PERK) and P-glycoprotein (P-gp). There was also an upregulated expression of anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) whereas no significant change was observed for CCAAT-enhancer-binding protein homologous protein (CHOP), which is known to be induced by ER stress and to mediate apoptosis. Our results demonstrated that insulin resistance in HepG2 cells promoted a protective unfolded protein response and upregulated the expression of ER chaperone protein GRP78, which resulted in the phosphorylation of PERK kinase to activate the PERK-mediated ER stress signal transduction pathway and the upregulation of Bcl-2 and P-gp, leading to the inhibition of the caspase-3-dependent apoptosis pathway and to the survival of liver tumor cells.
Collapse
Affiliation(s)
- Xinyue Liu
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Linjing Li
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jing Li
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yan Cheng
- Experimental Center, Northwest University for Nationalities, Lanzhou, Gansu 730000, P.R. China
| | - Jing Chen
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Minghui Shen
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Shangdi Zhang
- Department of Clinical Laboratory Center, The Second Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Hulai Wei
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| |
Collapse
|
20
|
Gagliano T, Gentilin E, Tagliati F, Benfini K, Di Pasquale C, Feo C, Falletta S, Riva E, degli Uberti E, Zatelli MC. Inhibition of epithelial growth factor receptor can play an important role in reducing cell growth and survival in adrenocortical tumors. Biochem Pharmacol 2015; 98:639-48. [DOI: 10.1016/j.bcp.2015.10.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/15/2015] [Indexed: 12/13/2022]
|
21
|
Theile D, Haefeli WE, Weiss J. Effects of adrenolytic mitotane on drug elimination pathways assessed in vitro. Endocrine 2015; 49:842-53. [PMID: 25542188 DOI: 10.1007/s12020-014-0517-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 12/18/2014] [Indexed: 12/13/2022]
Abstract
Mitotane (1,1-dichloro-2-(o-chlorophenyl)-2-(p-chlorophenyl)ethane, o,p'-DDD) represents one of the most active drugs for the treatment of adrenocortical carcinoma. Its metabolites 1,1-(o,p'-dichlorodiphenyl) acetic acid (=o,p'-DDA) and 1,1-(o,p'-dichlorodiphenyl)-2,2 dichloroethene (=o,p'-DDE) partly contribute to its pharmacological effects. Because mitotane has a narrow therapeutic index and causes pharmacokinetic drug-drug interactions, knowledge about these compounds' effects on drug metabolizing and transporting proteins is crucial. Using quantitative real-time polymerase chain reaction, our study confirmed the strong inducing effects of o,p'-DDD on mRNA expression of cytochrome P450 3A4 (CYP3A4, 30-fold) and demonstrated that other enzymes and transporters are also induced (e.g., CYP1A2, 8.4-fold; ABCG2 (encoding breast resistance cancer protein, BCRP), 4.2-fold; ABCB1 (encoding P-glycoprotein, P-gp) 3.4-fold). P-gp induction was confirmed at the protein level. o,p'-DDE revealed a similar induction profile, however, with less potency and o,p'-DDA had only minor effects. Reporter gene assays clearly confirmed o,p'-DDD to be a PXR activator and for the first time demonstrated that o,p'-DDE and o,p'-DDA also activate PXR albeit with lower potency. Using isolated, recombinant CYP enzymes, o,p'-DDD and o,p'-DDE were shown to strongly inhibit CYP2C19 (IC50 = 0.05 and 0.09 µM). o,p'-DDA exhibited only minor inhibitory effects. In addition, o,p'-DDD, o,p'-DDE, and o,p'-DDA are demonstrated to be neither substrates nor inhibitors of BCRP or P-gp function. In summary, o,p'-DDD and o,p'-DDE might be potential perpetrators in pharmacokinetic drug-drug interactions through induction of drug-metabolizing enzymes or drug transporters and by potent inhibition of CYP2C19. In tumors over-expressing BCRP or P-gp, o,p'-DDD and its metabolites should retain their efficacy due to a lack of substrate characteristics.
Collapse
Affiliation(s)
- Dirk Theile
- Department of Clinical Pharmacology and Pharmacoepidemiology, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | | | | |
Collapse
|
22
|
Gentilin E, Di Pasquale C, Rossi M, Tagliati F, Gagliano T, Rossi R, Pelizzo M, Merante Boschin I, degli Uberti EC, Zatelli MC. Igf-I influences everolimus activity in medullary thyroid carcinoma. Front Endocrinol (Lausanne) 2015; 6:63. [PMID: 25999915 PMCID: PMC4419838 DOI: 10.3389/fendo.2015.00063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 04/10/2015] [Indexed: 11/17/2022] Open
Abstract
CONTEXT Medullary thyroid carcinoma (MTC) is a rare tumor originating from thyroid parafollicular C cells. It has been previously demonstrated that insulin-like growth factor I (IGF-I) protects MTC from the effects of antiproliferative drugs. Everolimus, an mTOR inhibitor, has shown potent antiproliferative effects in a human MTC cell line, TT, and in two human MTC primary cultures. OBJECTIVE To verify whether IGF-I may influence the effects of everolimus in a group of human MTC primary cultures. DESIGN We collected 18 MTCs that were dispersed in primary cultures, treated without or with 10 nM-1 μM everolimus and/or 50 nM IGF-I. Cell viability was evaluated after 48 h, and calcitonin (CT) secretion was assessed after a 6 h incubation. IGF-I receptor downstream signaling protein expression profile was also investigated. RESULTS Everolimus significantly reduced cell viability in eight MTC [by ~20%; P < 0.01 vs. control; everolimus-responders (E-R) MTCs], while cell viability did not change in 10 MTCs [everolimus-non-responders (E-NR) MTCs]. In E-R MTCs, IGF-I blocked the antiproliferative effects of everolimus that did not affect CT secretion, but blocked the stimulatory effects of IGF-I on this parameter. IGF-I receptor downstream signaling proteins were expressed at higher levels in E-NR MTC as compared to E-R MTCs. CONCLUSION IGF-I protects a subset of MTC primary cultures from the antiproliferative effects of everolimus and stimulates CT secretion by an mTOR mediated pathway that, in turn, may represent a therapeutic target in the treatment of aggressive MTCs.
Collapse
Affiliation(s)
- Erica Gentilin
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
- Laboratorio in rete del Tecnopolo “Tecnologie delle Terapie Avanzate” (LTTA), University of Ferrara, Ferrara, Italy
| | - Carmelina Di Pasquale
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Martina Rossi
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Federico Tagliati
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Teresa Gagliano
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Roberta Rossi
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - Mariarosa Pelizzo
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Isabella Merante Boschin
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padova, Padova, Italy
| | - Ettore C. degli Uberti
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
- Laboratorio in rete del Tecnopolo “Tecnologie delle Terapie Avanzate” (LTTA), University of Ferrara, Ferrara, Italy
| | - Maria Chiara Zatelli
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
- Laboratorio in rete del Tecnopolo “Tecnologie delle Terapie Avanzate” (LTTA), University of Ferrara, Ferrara, Italy
- *Correspondence: Maria Chiara Zatelli, Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Via Savonarola 9, Ferrara 44100, Italy,
| |
Collapse
|