1
|
Kim JM, Choi JS, Jung J, Yeo SG, Kim SH. Inhibitory effect of parthenolide on peripheral nerve degeneration. Anat Sci Int 2023; 98:529-539. [PMID: 37024641 DOI: 10.1007/s12565-023-00718-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/15/2023] [Indexed: 04/08/2023]
Abstract
Traumatic axonal damage disrupts connections between neurons, leading to the loss of motor and sensory functions. Although damaged peripheral nerves can regenerate, recovery depends on the variety and severity of nerve damage. Thus, many phytochemicals have been studied for their ability to reduce peripheral nerve degeneration, and among them, Parthenolide (PTL), which is extracted from Feverfew has effects against production of free radicals, inflammation, and apoptosis. Thus, we conducted a study to investigate whether PTL has an inhibitory effect on peripheral nerve degeneration during peripheral nerve damage. To verify the effect of PTL on peripheral nerve degeneration process, a morphological comparison of peripheral nerves with and without PTL was performed. PTL significantly reduced the quantity of fragmented ovoid formations at 3DIV (days in vitro). Immunostaining for MBP revealed that the ratio of intact myelin sheaths increased significantly in sciatic nerve with PTL compared with absence of PTL at 3DIV. Furthermore, nerve fibers in the presence of PTL maintained the continuity of Neurofilament (NF) compared to those without at 3DIV. Immunostaining for LAMP1 and p75 NTR showed that the expression of LAMP1 and p75 NTR decreased in the nerve after PTL addition at 3DIV. Lastly, immunostaining for anti-Ki67 revealed that PTL inhibited Ki67 expression at 3DIV compared to without PTL. These results confirm that PTL inhibits peripheral nerve degenerative processes. PTL may be a good applicant to inhibit peripheral nerve degeneration. Our study examined the effect of Parthenolide in preventing degeneration of peripheral nerves by inhibiting the breakdown of peripheral axons and myelin, also inhibiting Schwann cell trans-dedifferentiation and proliferation.
Collapse
Affiliation(s)
- Jung Min Kim
- Department of Otorhinolaryngology, Head and Neck Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, 02447, Korea
| | - Jae Sun Choi
- Clinical Research Institute, Kyung Hee Medical Center, Seou, 02447, Korea
| | - Junyang Jung
- Department of Anatomy and Neurobiology, College of Medicines, Kyung Hee University, Seoul, 02447, Korea
| | - Seung Geun Yeo
- Department of Otorhinolaryngology, Head and Neck Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, 02447, Korea
| | - Sang Hoon Kim
- Department of Otorhinolaryngology, Head and Neck Surgery, Kyung Hee University School of Medicine, Kyung Hee University Medical Center, Seoul, 02447, Korea.
- Department of Otohinolaryngology - H & N Surgery, School of Medicine, KyungHee University, #1 Hoegi-Dong, Dongdaemun-Gu, Seoul, 130-702, Korea.
| |
Collapse
|
2
|
Senthilkumar G, Aravind Kumar J. Nanobubbles: a promising efficient tool for therapeutic delivery of antibacterial agents for the Staphylococcus aureus infections. APPLIED NANOSCIENCE 2023:1-14. [PMID: 37362151 PMCID: PMC10141880 DOI: 10.1007/s13204-023-02854-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/14/2023] [Indexed: 06/28/2023]
Abstract
The current research is focused to address the implementation of nanobubbles technology to antibacterial agents against Staphylococcus aureus infections. Nanobubbles technology is a novel, latest research employed in many medical fields including drug discovery. In this present work, supramolecular nanoliquid formulation of potential antiseptic agent chloroxylenol-based Dettol and its enhanced antibacterial activity, biocompatibility assessment was studied. Nanobubble technology was adopted to prepare nanoformulation (NB-D) using a household hand mixer under thermostatically controlled conditions. A high-stability nanoformulation with high potential antibacterial activity against human pathogenic strains of Pseudomonas aeruginosa and Staphylococcus aureus was produced by the nanobubbles created in the antiseptic solution. The overall vitality of both strains was significantly reduced in all dose tests on NB-D treatment as a result of the antibacterial activity as assessed by the well-diffusion assay, turbidometric microdilution assay, biofilm inhibition assay, and total count reduction assay. Biocompatibility of the NB-D formulation was studied by the determination of cytotoxicity against HaCaT-human keratinocytes and hemocytes. NB-D treatment did not induce any notable cytotoxic effect on HaCaT cells by showing none of the changes in cell morphology and architecture. No toxic effect on the hematocytes was observed in NB-D treatment. The enhanced antibacterial activity and best biocompatibility of NB-D result shows that the nanobubble technology could be used as an effective strategy for the formulation of antiseptics or disinfectants against high health risk infectious organisms. The novelty of the work is the formation of supramolecular nanoformulation on antiseptic agent which promised the results enhanced than the raw antiseptic agent.
Collapse
Affiliation(s)
- G. Senthilkumar
- Department of Mechanical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119 India
| | - J. Aravind Kumar
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105 India
| |
Collapse
|
3
|
Hou L, Xing N, Yue Z, Wu J, Wang F, Guo Z. Dicer induced reactive oxygen species inhibit hepatocellular carcinoma through interacting with cytochrome c oxidase. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2082318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Lin Hou
- Department of Endocrine and Metabolic Disease, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Na Xing
- Department of Endocrine and Metabolic Disease, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Zhao Yue
- Department of Gastroenterology and Hepatology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Jianhua Wu
- Animal Center, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Fujun Wang
- Department of Endocrine and Metabolic Disease, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| | - Zhanjun Guo
- Department of Immunology and Rheumatology, the Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, P. R. China
| |
Collapse
|
4
|
Poirier M, Blong AE, Walton RAL. Successful management and recovery of a dog with immune‐mediated thrombocytopenia following vincristine overdose. J Vet Emerg Crit Care (San Antonio) 2022; 32:539-544. [PMID: 35129277 PMCID: PMC9546371 DOI: 10.1111/vec.13187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/13/2020] [Accepted: 12/02/2020] [Indexed: 11/30/2022]
Abstract
Objective Case Summary New or Unique Information Provided
Collapse
Affiliation(s)
- Maude Poirier
- Department of Small Animal Emergency and Critical Care, College of Veterinary Medicine Iowa State University Ames Iowa USA
| | - April E. Blong
- Department of Small Animal Emergency and Critical Care, College of Veterinary Medicine Iowa State University Ames Iowa USA
| | - Rebecca A. L. Walton
- Department of Small Animal Emergency and Critical Care, College of Veterinary Medicine Iowa State University Ames Iowa USA
| |
Collapse
|
5
|
Zhang H, Steed A, Co M, Chen X. Cancer stem cells, epithelial-mesenchymal transition, ATP and their roles in drug resistance in cancer. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2021; 4:684-709. [PMID: 34322664 PMCID: PMC8315560 DOI: 10.20517/cdr.2021.32] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The cancer stem cell (CSC) state and epithelial-mesenchymal transition (EMT) activation are tightly interconnected. Cancer cells that acquire the EMT/CSC phenotype are equipped with adaptive metabolic changes to maintain low reactive oxygen species levels and stemness, enhanced drug transporters, anti-apoptotic machinery and DNA repair system. Factors present in the tumor microenvironment such as hypoxia and the communication with non-cancer stromal cells also promote cancer cells to enter the EMT/CSC state and display related resistance. ATP, particularly the high levels of intratumoral extracellular ATP functioning through both signaling pathways and ATP internalization, induces and regulates EMT and CSC. The three of them work together to enhance drug resistance. New findings in each of these factors will help us explore deeper into mechanisms of drug resistance and suggest new resistance-associated markers and therapeutic targets.
Collapse
Affiliation(s)
- Haiyun Zhang
- Department of Biological Science, Ohio University, Athens, OH 45701, USA.,Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, OH 45701, USA
| | - Alexander Steed
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Milo Co
- Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA
| | - Xiaozhuo Chen
- Edison Biotechnology Institute, Ohio University, Athens, OH 45701, USA.,Interdisciplinary Graduate Program in Molecular and Cellular Biology, Ohio University, Athens, OH 45701, USA.,Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, USA.,Department of Biomedical Sciences, Ohio University, Athens, OH 45701, USA
| |
Collapse
|
6
|
Wang JQ, Yang Y, Cai CY, Teng QX, Cui Q, Lin J, Assaraf YG, Chen ZS. Multidrug resistance proteins (MRPs): Structure, function and the overcoming of cancer multidrug resistance. Drug Resist Updat 2021; 54:100743. [PMID: 33513557 DOI: 10.1016/j.drup.2021.100743] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/21/2020] [Accepted: 12/25/2020] [Indexed: 02/08/2023]
Abstract
ATP-binding cassette (ABC) transporters mediate the ATP-driven translocation of structurally and mechanistically distinct substrates against steep concentration gradients. Among the seven human ABC subfamilies namely ABCA-ABCG, ABCC is the largest subfamily with 13 members. In this respect, 9 of the ABCC members are termed "multidrug resistance proteins" (MRPs1-9) due to their ability to mediate cancer multidrug resistance (MDR) by extruding various chemotherapeutic agents or their metabolites from tumor cells. Furthermore, MRPs are also responsible for the ATP-driven efflux of physiologically important organic anions such as leukotriene C4, folic acid, bile acids and cAMP. Thus, MRPs are involved in important regulatory pathways. Blocking the anticancer drug efflux function of MRPs has shown promising results in overcoming cancer MDR. As a result, many novel MRP modulators have been developed in the past decade. In the current review, we summarize the structure, tissue distribution, biological and pharmacological functions as well as clinical insights of MRPs. Furthermore, recent updates in MRP modulators and their therapeutic applications in clinical trials are also discussed.
Collapse
Affiliation(s)
- Jing-Quan Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Yuqi Yang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Chao-Yun Cai
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Qiu-Xu Teng
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Qingbin Cui
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA; School of Public Health, Guangzhou Medical University, Guangzhou, Guangdong 511436, China; Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, USA
| | - Jun Lin
- Department of Anesthesiology, Stony Brook University Health Sciences Center, Stony Brook, NY, 11794, USA
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA.
| |
Collapse
|
7
|
Cervenkova L, Vycital O, Bruha J, Rosendorf J, Palek R, Liska V, Daum O, Mohelnikova-Duchonova B, Soucek P. Protein expression of ABCC2 and SLC22A3 associates with prognosis of pancreatic adenocarcinoma. Sci Rep 2019; 9:19782. [PMID: 31874997 PMCID: PMC6930301 DOI: 10.1038/s41598-019-56059-w] [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: 09/13/2019] [Accepted: 12/03/2019] [Indexed: 12/15/2022] Open
Abstract
ATP-binding cassette (ABC) and solute carrier (SLC) transporters translocate diverse substances across cellular membranes and their deregulation may cause drug resistance of cancers. This study investigated significance of protein expression and cellular localization of the previously suggested putative prognostic markers ABCC2 and SLC22A3 in pancreatic cancer patients. Protein localization and brush border staining intensity of ABCC2 and SLC22A3 was assessed in tumor tissue blocks of 65 pancreatic cancer patients and associated with clinical data and survival of patients with regard to therapy. Negative SLC22A3 brush border staining in pancreatic tumors significantly increased the risk of both disease progression and patient´s death in univariate analyses. Multivariate analyses confirmed the association of SLC22A3 expression with progression-free survival of patients. A subgroup analysis of patients treated with regimens based on nucleoside analogs suggested that patients with negative brush border staining or apical localization of SLC22A3 in tumor cells have worse overall survival. The combination of positive ABCC2 and negative SLC22A3 brush border staining predicted worst overall survival and patients with positive brush border staining of both proteins had best overall and progression-free survival. The present study shows for the first time that the protein presence and to some extent also localization of SLC22A3 significantly associate with prognosis of pancreatic cancer in both unstratified and chemotherapy-treated patients. The combination of ABCC2 and SLC22A3 brush border staining also needs further attention in this regard.
Collapse
Affiliation(s)
- Lenka Cervenkova
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Pathology, Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ondrej Vycital
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Deparment of Surgery, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Jan Bruha
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Deparment of Surgery, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Jachym Rosendorf
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Deparment of Surgery, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Richard Palek
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Deparment of Surgery, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Vaclav Liska
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Deparment of Surgery, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Ondrej Daum
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.,Department of Pathology, Faculty Hospital and Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Beatrice Mohelnikova-Duchonova
- Department of Oncology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Pavel Soucek
- Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic.
| |
Collapse
|
8
|
Aghamiri S, Mehrjardi KF, Shabani S, Keshavarz-Fathi M, Kargar S, Rezaei N. Nanoparticle-siRNA: a potential strategy for ovarian cancer therapy? Nanomedicine (Lond) 2019; 14:2083-2100. [PMID: 31368405 DOI: 10.2217/nnm-2018-0379] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Ovarian cancer is one of the most common causes of mortality throughout the world. Unfortunately, chemotherapy has failed to cure advanced cancers developing multidrug resistance (MDR). Moreover, it has critical side effects because of nonspecific toxicity. Thanks to specific silencing of oncogenes and MDR-associated genes, nano-siRNA drugs can be a great help address the limitations of chemotherapy. Here, we review the current advances in nanoparticle-mediated siRNA delivery strategies such as polymeric- and lipid-based systems, rigid nanoparticles and nanoparticles coupled to specific ligand systems. Nanoparticle-based codelivery of anticancer drugs and siRNA targeting various mechanisms of MDR is a cutting-edge strategy for ovarian cancer therapy, which is completely discussed in this review.
Collapse
Affiliation(s)
- Shahin Aghamiri
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technology in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, 19839-63113, Iran
| | - Keyvan Fallah Mehrjardi
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, 1416753955, Iran.,Cancer Immunology Project (CIP), Universal Scientific Education & Research Network (USERN), Tehran, 1419733151, Iran
| | - Sasan Shabani
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, 1416753955, Iran
| | - Mahsa Keshavarz-Fathi
- Cancer Immunology Project (CIP), Universal Scientific Education & Research Network (USERN), Tehran, 1419733151, Iran.,Students' Scientific Research Center, School of Medicine, Tehran University of Medical Sciences, Tehran, 1416753955, Iran
| | - Saeed Kargar
- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, 1417466191, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, 1419733151, Iran
| |
Collapse
|
9
|
Wiese M, Stefan SM. The A‐B‐C of small‐molecule ABC transport protein modulators: From inhibition to activation—a case study of multidrug resistance‐associated protein 1 (ABCC1). Med Res Rev 2019; 39:2031-2081. [DOI: 10.1002/med.21573] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Michael Wiese
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
| | - Sven Marcel Stefan
- Pharmaceutical Institute, Rheinische Friedrich‐Wilhelms‐University of Bonn Bonn Germany
| |
Collapse
|
10
|
Cui Q, Wang JQ, Assaraf YG, Ren L, Gupta P, Wei L, Ashby CR, Yang DH, Chen ZS. Modulating ROS to overcome multidrug resistance in cancer. Drug Resist Updat 2018; 41:1-25. [DOI: 10.1016/j.drup.2018.11.001] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 10/26/2018] [Accepted: 11/02/2018] [Indexed: 02/07/2023]
|
11
|
Lan D, Wang L, He R, Ma J, Bin Y, Chi X, Chen G, Cai Z. Exogenous glutathione contributes to cisplatin resistance in lung cancer A549 cells. Am J Transl Res 2018; 10:1295-1309. [PMID: 29887946 PMCID: PMC5992547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Recent studies have reported that an elevated intracellular glutathione (GSH) level is associated with resistance of non-small cell lung cancer (NSCLC) cell lines to cisplatin (CDDP). It is well-known that GSH is widely used in the clinic as a hepatoprotective agent. However, whether exogenous GSH can affect the sensitivity of NSCLC cells to CDDP remains unclear. The aim of this study is to evaluate the role of exogenous GSH in the resistance of A549 cells to CDDP. METHODS The effect of GSH and CDDP on the proliferation of A549 cells was analyzed by MTT assay. Subsequent experiments were conducted in A549 cells divided into four groups: control group (untreated cells), GSH group (treated with 120 μg/ml GSH for 48 h), CDDP group (treated with 10 μg/ml CDDP for 48 h) and CDDP+GSH group (treated with 10 μg/ml CDDP+120 μg/ml GSH for 48 h). Apoptosis was detected by flow cytometry. Light microscopy, fluorescence microscopy and electron microscopy were performed to study morphologic and ultrastructural differences among the four groups of cells. Intracellular GSH level and γ-GCS expression were determined by immunohistochemistry (IHC). Cellular platinum uptake was assessed by inductively coupled plasma mass spectrometry (ICP-MS). Quantitative RT-PCR analysis was performed to measure the expression of caspase3, caspase9, bax, bcl-2 and MDR-1. Western blot analysis was conducted to examine the protein levels of GST-π, MRP-1 and P-gp. RESULTS Growth inhibition and apoptosis were reduced in A549 cells in the CDDP+GSH group compared to those in the CDDP group 48 h post-treatment. Alterations in cellular morphology and ultrastructure, as well as typical characteristics of apoptosis, were observed. Intracellular GSH and γ-GCS levels were elevated by exogenous administration of GSH; in contrast, cellular platinum concentration fell rapidly. Relative to the CDDP group, the CDDP+GSH group exhibited 47.92%, 47.82% and 63.75% downregulation in caspase3, caspase9 and bax mRNA expression, respectively, and a 2.17-fold increase in bcl-2 mRNA level. In addition, there were 1.58-fold and 2.67-fold increases in the level of GST-π and MRP-1, respectively; however, the changes in MDR-1 and P-gp levels were not statistically significant. CONCLUSIONS Our data demonstrated that exogenous GSH used as hepatinica in the clinic could induce resistance of A549 cells to CDDP by inhibiting apoptosis, elevating cellular GSH levels, inactivating the mitochondria-mediated signaling pathway, and increasing the expression of GST-π, γ-GCS and MRP1 to increase CDDP efflux.
Collapse
Affiliation(s)
- Dong Lan
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Li Wang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Rongquan He
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Jie Ma
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Yehong Bin
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Xiaojv Chi
- Department of Medical Oncology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| | - Gang Chen
- Department of Medical Oncology, Second Affiliated Hospital of Guangxi Medical UniversityNo. 166 Daxuedong Road, Nanning 530007, Guangxi Zhuang Autonomous Region, P. R. China
| | - Zhengwen Cai
- Department of Pathology, First Affiliated Hospital of Guangxi Medical UniversityNo. 6 Shuangyong Road, Nanning 530021, Guangxi Zhuang Autonomous Region, P. R. China
| |
Collapse
|
12
|
Fouquet G, Debuysscher V, Ouled-Haddou H, Eugenio MS, Demey B, Singh AR, Ossart C, Al Bagami M, Regimbeau JM, Nguyen-Khac E, Naassila M, Marcq I, Bouhlal H. Hepatocyte SLAMF3 reduced specifically the multidrugs resistance protein MRP-1 and increases HCC cells sensitization to anti-cancer drugs. Oncotarget 2018; 7:32493-503. [PMID: 27081035 PMCID: PMC5078028 DOI: 10.18632/oncotarget.8679] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 03/28/2016] [Indexed: 12/30/2022] Open
Abstract
Multidrug resistance MDR proteins (MRPs) are members of the C family of a group of proteins named ATP binding cassette (ABC) transporters. MRPs can transport drugs including anticancer drugs, nucleoside analogs, antimetabolites and tyrosine kinase inhibitors. Drugs used in HCC therapy, such as tyrosine kinase inhibitor sorafenib, are substrates of uptake and/or efflux transporters. Variable expression of MRPs at the plasma membrane of tumor cells may contribute to drug resistance and subsequent clinical response. Recently, we reported that the hepatocyte SLAMF3 expression (Signaling Lymphocytic Activation Molecule Family member 3) was reduced in tumor cells from hepatocellular carcinoma (HCC) compared to its high expression in adjacent tissues. In the present study, we make a strong correlation between induced SLAMF3 overexpression and the specific loss of MRP-1 expression and its functionalities as a drugs resistance transporter. No changes were observed on expression of ABCG2 and MDR. More importantly, we highlight a strong inverse correlation between MRP-1 and SLAMF3 expression in patients with HCC. We propose that the SLAMF3 overexpression in cancerous cells could represent a potential therapeutic strategy to improve the drugs sensibility of resistant cells and thus control the therapeutic failure in HCC patients.
Collapse
Affiliation(s)
- Grégory Fouquet
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Véronique Debuysscher
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Hakim Ouled-Haddou
- EA 4666 LNPC, Centre Universitaire de Recherche en Santé CURS, CAP-Santé (FED 4231) Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Mélanie Simoes Eugenio
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Baptiste Demey
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Amrathlal Rabbind Singh
- Department of Microbiology, Dr. G. Venkataswamy Eye Research Institute, Aravind Medical Research Foundation, Madurai, India
| | - Christèle Ossart
- Service de Thérapie Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Mohammed Al Bagami
- EA 4666 LNPC, Centre Universitaire de Recherche en Santé CURS, CAP-Santé (FED 4231) Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Jean-Marc Regimbeau
- Service de Chirurgie Digestive Centre Hospitalier Universitaire Sud, Amiens, France
| | - Eric Nguyen-Khac
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France.,Service Hépato-Gastroenterologie, Centre Hospitalier Universitaire Sud, Amiens, France
| | - Mickael Naassila
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Ingrid Marcq
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| | - Hicham Bouhlal
- INSERM-ERi 24 (GRAP) Centre Universitaire de Recherche en Santé CURS, Université de Picardie Jules Verne, Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France.,Service de Thérapie Cellulaire Centre Hospitalier Universitaire Sud, Amiens, France
| |
Collapse
|
13
|
New insights into Vinca alkaloids resistance mechanism and circumvention in lung cancer. Biomed Pharmacother 2017; 96:659-666. [DOI: 10.1016/j.biopha.2017.10.041] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/08/2017] [Accepted: 10/09/2017] [Indexed: 12/22/2022] Open
|
14
|
Du Y, Chen B. Detection approaches for multidrug resistance genes of leukemia. DRUG DESIGN DEVELOPMENT AND THERAPY 2017; 11:1255-1261. [PMID: 28458519 PMCID: PMC5402920 DOI: 10.2147/dddt.s134529] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Leukemia is a clonal malignant hematopoietic stem cell disease. It is the sixth most lethal cancer and accounts for 4% of all cancers. The main form of treatment for leukemia is chemotherapy. While some cancer types with a higher incidence than leukemia, such as lung and gastric cancer, have shown a sharp decline in mortality rates in recent years, leukemia has not followed this trend. Drug resistance is often regarded as the main clinical obstacle to effective chemotherapy in patients diagnosed with leukemia. Many resistance mechanisms have now been identified, and multidrug resistance (MDR) is considered the most important and prevalent mechanism involved in the failure of chemotherapy in leukemia. In order to reverse MDR and improve leukemia prognosis, effective detection methods are needed to identify drug resistance genes at initial diagnosis. This article provides a comprehensive overview of published approaches for the detection of MDR in leukemia. Identification of relevant MDR genes and methods for early detection of these genes will be needed in order to treat leukemia more effectively.
Collapse
Affiliation(s)
- Ying Du
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), School of Medicine, Zhongda Hospital, Southeast University, Nanjing, Jiangsu Province, People's Republic of China
| | - Baoan Chen
- Department of Hematology and Oncology (Key Department of Jiangsu Medicine), School of Medicine, Zhongda Hospital, Southeast University, Nanjing, Jiangsu Province, People's Republic of China
| |
Collapse
|
15
|
Kamal A, Nekkanti S, Shankaraiah N, Sathish M. Future of Drug Discovery. DRUG RESISTANCE IN BACTERIA, FUNGI, MALARIA, AND CANCER 2017:609-629. [DOI: 10.1007/978-3-319-48683-3_27] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
|
16
|
Sharbeen G, McCarroll J, Liu J, Youkhana J, Limbri LF, Biankin AV, Johns A, Kavallaris M, Goldstein D, Phillips PA. Delineating the Role of βIV-Tubulins in Pancreatic Cancer: βIVb-Tubulin Inhibition Sensitizes Pancreatic Cancer Cells to Vinca Alkaloids. Neoplasia 2016; 18:753-764. [PMID: 27889644 PMCID: PMC5126129 DOI: 10.1016/j.neo.2016.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/27/2016] [Accepted: 10/31/2016] [Indexed: 01/05/2023]
Abstract
Pancreatic cancer (PC) is a lethal disease which is characterized by chemoresistance. Components of the cell cytoskeleton are therapeutic targets in cancer. βIV-tubulin is one such component that has two isotypes-βIVa and βIVb. βIVa and βIVb isotypes only differ in two amino acids at their C-terminus. Studies have implicated βIVa-tubulin or βIVb-tubulin expression with chemoresistance in prostate, breast, ovarian and lung cancer. However, no studies have examined the role of βIV-tubulin in PC or attempted to identify isotype specific roles in regulating cancer cell growth and chemosensitivity. We aimed to determine the role of βIVa- or βIVb-tubulin on PC growth and chemosensitivity. PC cells (MiaPaCa-2, HPAF-II, AsPC1) were treated with siRNA (control, βIVa-tubulin or βIVb-tubulin). The ability of PC cells to form colonies in the presence or absence of chemotherapy was measured by clonogenic assays. Inhibition of βIVa-tubulin in PC cells had no effect chemosensitivity. In contrast, inhibition of βIVb-tubulin in PC cells sensitized to vinca alkaloids (Vincristine, Vinorelbine and Vinblastine), which was accompanied by increased apoptosis and enhanced cell cycle arrest. We show for the first time that βIVb-tubulin, but not βIVa-tubulin, plays a role in regulating vinca alkaloid chemosensitivity in PC cells. The results from this study suggest βIVb-tubulin may be a novel therapeutic target and predictor of vinca alkaloid sensitivity for PC and warrants further investigation.
Collapse
Affiliation(s)
- G Sharbeen
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052
| | - J McCarroll
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, Australia, 2031; Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, UNSW, Australia
| | - J Liu
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052
| | - J Youkhana
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052
| | - L F Limbri
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052
| | - A V Biankin
- The Kinghorn Cancer Centre, Cancer Program, Garvan Institute of Medical Research, Darlinghurst, Sydney, Australia; Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Bearsden, Glasgow, Scotland G61 1BD, United Kingdom
| | - A Johns
- The Kinghorn Cancer Centre, Cancer Program, Garvan Institute of Medical Research, Darlinghurst, Sydney, Australia
| | - M Kavallaris
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, Australia, 2031; Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, UNSW, Australia
| | - D Goldstein
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052
| | - P A Phillips
- Pancreatic Cancer Translational Research Group, Lowy Cancer Research Centre, Prince of Wales Clinical School, University of New South Wales (UNSW), Sydney, Australia, 2052; Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, UNSW, Australia.
| |
Collapse
|
17
|
Cort A, Ozben T, Saso L, De Luca C, Korkina L. Redox Control of Multidrug Resistance and Its Possible Modulation by Antioxidants. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:4251912. [PMID: 26881027 PMCID: PMC4736404 DOI: 10.1155/2016/4251912] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/14/2015] [Accepted: 11/18/2015] [Indexed: 12/13/2022]
Abstract
Clinical efficacy of anticancer chemotherapies is dramatically hampered by multidrug resistance (MDR) dependent on inherited traits, acquired defence against toxins, and adaptive mechanisms mounting in tumours. There is overwhelming evidence that molecular events leading to MDR are regulated by redox mechanisms. For example, chemotherapeutics which overrun the first obstacle of redox-regulated cellular uptake channels (MDR1, MDR2, and MDR3) induce a concerted action of phase I/II metabolic enzymes with a temporal redox-regulated axis. This results in rapid metabolic transformation and elimination of a toxin. This metabolic axis is tightly interconnected with the inducible Nrf2-linked pathway, a key switch-on mechanism for upregulation of endogenous antioxidant enzymes and detoxifying systems. As a result, chemotherapeutics and cytotoxic by-products of their metabolism (ROS, hydroperoxides, and aldehydes) are inactivated and MDR occurs. On the other hand, tumour cells are capable of mounting an adaptive antioxidant response against ROS produced by chemotherapeutics and host immune cells. The multiple redox-dependent mechanisms involved in MDR prompted suggesting redox-active drugs (antioxidants and prooxidants) or inhibitors of inducible antioxidant defence as a novel approach to diminish MDR. Pitfalls and progress in this direction are discussed.
Collapse
Affiliation(s)
- Aysegul Cort
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Sanko University, İncili Pınar, Gazi Muhtar Paşa Bulvarı, Sehitkamil, 27090 Gaziantep, Turkey
| | - Tomris Ozben
- Department of Biochemistry, Akdeniz University Medical Faculty, Campus, Dumlupınar Street, 07070 Antalya, Turkey
| | - Luciano Saso
- Department of Physiology and Pharmacology “Vittorio Erspamer”, La Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Chiara De Luca
- Evidence-Based Well-Being (EB-WB) Ltd., 31 Alt-Stralau, 10245 Berlin, Germany
| | - Liudmila Korkina
- Centre of Innovative Biotechnological Investigations Nanolab, 197 Vernadskogo Prospekt, Moscow 119571, Russia
| |
Collapse
|
18
|
Abstract
The phenomenon of multidrug resistance (MDR) in cancer is associated with the overexpression of the ATP-binding cassette (ABC) transporter proteins, including multidrug resistance-associated protein 1 (MRP1) and P-glycoprotein. MRP1 plays an active role in protecting cells by its ability to efflux a vast array of drugs to sub-lethal levels. There has been much effort in elucidating the mechanisms of action, structure and substrates and substrate binding sites of MRP1 in the last decade. In this review, we detail our current understanding of MRP1, its clinical relevance and highlight the current environment in the search for MRP1 inhibitors. We also look at the capacity for the rapid intercellular transfer of MRP1 phenotype from spontaneously shed membrane vesicles known as microparticles and discuss the clinical and therapeutic significance of this in the context of cancer MDR.
Collapse
Affiliation(s)
- Jamie F Lu
- a Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney , Broadway , NSW , Australia
| | - Deep Pokharel
- a Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney , Broadway , NSW , Australia
| | - Mary Bebawy
- a Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney , Broadway , NSW , Australia
| |
Collapse
|
19
|
Zhang YK, Wang YJ, Gupta P, Chen ZS. Multidrug Resistance Proteins (MRPs) and Cancer Therapy. AAPS JOURNAL 2015; 17:802-12. [PMID: 25840885 DOI: 10.1208/s12248-015-9757-1] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 03/23/2015] [Indexed: 12/21/2022]
Abstract
The ATP-binding cassette (ABC) transporters are members of a protein superfamily that are known to translocate various substrates across membranes, including metabolic products, lipids and sterols, and xenobiotic drugs. Multidrug resistance proteins (MRPs) belong to the subfamily C in the ABC transporter superfamily. MRPs have been implicated in mediating multidrug resistance by actively extruding chemotherapeutic substrates. Moreover, some MRPs are known to be essential in physiological excretory or regulatory pathways. The importance of MRPs in cancer therapy is also implied by their clinical insights. Modulating the function of MRPs to re-sensitize chemotherapeutic agents in cancer therapy shows great promise in cancer therapy; thus, multiple MRP inhibitors have been developed recently. This review article summarizes the structure, distribution, and physiological as well as pharmacological function of MRP1-MRP9 in cancer chemotherapy. Several novel modulators targeting MRPs in cancer therapy are also discussed.
Collapse
Affiliation(s)
- Yun-Kai Zhang
- College of Pharmacy and Health Sciences, St. John's University, 8000 Utopia Parkway, Queens, NY, 11439, USA,
| | | | | | | |
Collapse
|
20
|
Prasad P, Cheng J, Shuhendler A, Rauth AM, Wu XY. A novel nanoparticle formulation overcomes multiple types of membrane efflux pumps in human breast cancer cells. Drug Deliv Transl Res 2015; 2:95-105. [PMID: 25786718 DOI: 10.1007/s13346-011-0051-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Multidrug resistance (MDR) in cancer cells can involve overexpression of different types of membrane drug efflux pumps and other drug resistance mechanisms. Hence, inhibition of one resistance mechanism may not be therapeutically effective. Previously we demonstrated a new polymer lipid hybrid nanoparticle (PLN) system was able to circumvent drug resistance of P-glycoprotein (P-gp) overexpressing breast cancer cells. The objectives of the present study were 2-fold: (1) to evaluate the ability of the PLN system to overcome two other membrane efflux pumps-multidrug resistance protein 1 (MRP1+) and breast cancer resistance protein (BCRP+) overexpressed on human breast cancer cell lines MCF7 VP (MRP1+) and MCF7 MX (BCRP+); and (2) to evaluate possible synergistic effects of doxorubicin (Dox)-mitomycin C (MMC) in these cell lines. These objectives were accomplished by measuring in vitro cellular uptake, intracellular trafficking, and cytotoxicity (using a clonogenic assay and median effect analysis), of Dox, MMC, or Dox-MMC co-loaded PLN. Treatment of MDR cells with PLN encapsulating single anticancer agents significantly enhanced cell kill compared to free Dox or MMC solutions. Dox-MMC co-loaded PLN were 20-30-folds more effective in killing MDR cells than free drugs. Co-encapsulated Dox-MMC was more effective in killing MDR cells than single agent-encapsulated PLN. Microscopic images showed perinuclear localization of fluorescently labelled PLN in all cell lines. These results are consistent with our previous results for P-gp overexpressing breast cancer cells suggesting the PLN system can overcome multiple types of membrane efflux pumps increasing the cytotoxicity of Dox-MMC at significantly lower doses than free drugs.
Collapse
Affiliation(s)
- Preethy Prasad
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, 144 College Street, Toronto, Ontario, Canada, M5S 3M2
| | | | | | | | | |
Collapse
|
21
|
HZ08 reverse P-glycoprotein mediated multidrug resistance in vitro and in vivo. PLoS One 2015; 10:e0116886. [PMID: 25689592 PMCID: PMC4331368 DOI: 10.1371/journal.pone.0116886] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 12/16/2014] [Indexed: 11/29/2022] Open
Abstract
Background Multidrug efflux transporter P-glycoprotein (P-gp) is highly expressed on membrane of tumor cells and is implicated in resistance to tumor chemotherapy. HZ08 is synthesized and studied in order to find a novel P-gp inhibitor. Methods MDCK-MDR1 monolayer transport, calcein-AM P-gp inhibition and P-gp ATPase assays were used to confirm the P-gp inhibition capability of HZ08. Furthermore, KB-WT and KB-VCR cells were used to evaluate the P-gp inhibitory activity of HZ08 both in vitro and in vivo. Results Results showed that HZ08 was more potent than verapamil in MDCK-MDR1 monolayer transportation model. Meanwhile, P-gp ATPase assay and calcein-AM P-gp inhibition assay confirmed that HZ08 inhibited P-gp ATPase with a calcein-AM IC50 of 2.44±0.31μM. In addition, significantly greater in vitro multidrug resistance reversing effects were observed when vincristine or paclitaxel was used in combination with 10μM HZ08 compared with 10μM verapamil. Moreover, HZ08 could significantly enhance the sensitivity of vincristine with a similar effect like verapamil in both KB-WT and KB-VCR tumor xenograft models. Conclusions The novel structure HZ08 could be a potent P-gp inhibitor.
Collapse
|
22
|
Attaoua C, Vincent LA, Abdel Jaoued A, Hadj-Kaddour K, Baï Q, De Vos J, Vian L, Cuq P. Differential involvement of glutathione S-transferase mu 1 and multidrug resistance protein 1 in melanoma acquired resistance to vinca alkaloids. Fundam Clin Pharmacol 2014; 29:62-71. [DOI: 10.1111/fcp.12093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/15/2014] [Accepted: 09/29/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Chaker Attaoua
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| | - Laure-Anaïs Vincent
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| | - Aida Abdel Jaoued
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| | - Kamel Hadj-Kaddour
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| | - Qiang Baï
- Institut de Recherche en Biothérapie; Hôpital Saint-Eloi; 80 avenue Augustin Fliche Montpellier 34295 France
| | - John De Vos
- Institut de Recherche en Biothérapie; Hôpital Saint-Eloi; 80 avenue Augustin Fliche Montpellier 34295 France
- CHU Montpellier; Unit for Cell Therapy; Hôpital Saint-Eloi; INSERM; U1040 Montpellier F34000 France
| | - Laurence Vian
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| | - Pierre Cuq
- Laboratoire de Toxicologie du Médicament; Institut des Biomolécules Max Mousseron (UMR5247); UFR des Sciences Pharmaceutiques et Biologiques; Université Montpellier I; 15 avenue Charles Flahault, BP14491 Montpellier 34093 France
| |
Collapse
|
23
|
Kunická T, Václavíková R, Hlaváč V, Vrána D, Pecha V, Rauš K, Trnková M, Kubáčková K, Ambruš M, Vodičková L, Vodička P, Souček P. Non-coding polymorphisms in nucleotide binding domain 1 in ABCC1 gene associate with transcript level and survival of patients with breast cancer. PLoS One 2014; 9:e101740. [PMID: 25078270 PMCID: PMC4117604 DOI: 10.1371/journal.pone.0101740] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 06/10/2014] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES ATP-Binding Cassette (ABC) transporters may cause treatment failure by transporting of anticancer drugs outside of the tumor cells. Multidrug resistance-associated protein 1 coded by the ABCC1 gene has recently been suggested as a potential prognostic marker in breast cancer patients. This study aimed to explore tagged haplotype covering nucleotide binding domain 1 of ABCC1 in relation with corresponding transcript levels in tissues and clinical phenotype of breast cancer patients. METHODS The distribution of twelve ABCC1 polymorphisms was assessed by direct sequencing in peripheral blood DNA (n = 540). RESULTS Tumors from carriers of the wild type genotype in rs35623 or rs35628 exhibited significantly lower levels of ABCC1 transcript than those from carriers of the minor allele (p = 0.003 and p = 0.004, respectively). The ABCC1 transcript levels significantly increased in the order CT-GT>CC-GT>CC-GG for the predicted rs35626-rs4148351 diplotype. Chemotherapy-treated patients carrying the T allele in rs4148353 had longer disease-free survival than those with the GG genotype (p = 0.043). On the other hand, hormonal therapy-treated patients with the AA genotype in rs35628 had significantly longer disease-free survival than carriers of the G allele (p = 0.012). CONCLUSIONS Taken together, our study shows that genetic variability in the nucleotide binding domain 1 has a significant impact on the ABCC1 transcript level in the target tissue and may modify survival of breast cancer patients.
Collapse
Affiliation(s)
- Tereza Kunická
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Radka Václavíková
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
| | - Viktor Hlaváč
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - David Vrána
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- Department of Oncology, Palacky University Medical School and Teaching Hospital, Olomouc, Czech Republic
| | - Václav Pecha
- Institute for the Care for Mother and Child, Prague, Czech Republic
| | - Karel Rauš
- Institute for the Care for Mother and Child, Prague, Czech Republic
| | | | - Kateřina Kubáčková
- Department of Oncology, Motol University Hospital, Prague, Czech Republic
| | - Miloslav Ambruš
- Department of Radiotherapy and Oncology, Faculty Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Ludmila Vodičková
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - Pavel Vodička
- Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
- Institute of Biology and Medical Genetics, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pavel Souček
- Department of Toxicogenomics, National Institute of Public Health, Prague, Czech Republic
- * E-mail:
| |
Collapse
|
24
|
Abstract
Multidrug resistance presents one of the most important causes of cancer treatment failure. Numerous in vitro and in vivo data have made it clear that multidrug resistance is frequently caused by enhanced expression of ATP-binding cassette (ABC) transporters. ABC transporters are membrane-bound proteins involved in cellular defense mechanisms, namely, in outward transport of xenobiotics and physiological substrates. Their function thus prevents toxicity as carcinogenesis on one hand but may contribute to the resistance of tumor cells to a number of drugs including chemotherapeutics on the other. Within 48 members of the human ABC superfamily there are several multidrug resistance-associated transporters. Due to the well documented susceptibility of numerous drugs to efflux via ABC transporters it is highly desirable to assess the status of ABC transporters for individualization of treatment by their substrates. The multidrug resistance associated protein 1 (MRP1) encoded by ABCC1 gene is one of the most studied ABC transporters. Despite the fact that its structure and functions have already been explored in detail, there are significant gaps in knowledge which preclude clinical applications. Tissue-specific patterns of expression and broad genetic variability make ABCC1/MRP1 an optimal candidate for use as a marker or member of multi-marker panel for prediction of chemotherapy resistance. The purpose of this review was to summarize investigations about associations of gene and protein expression and genetic variability with prognosis and therapy outcome of major cancers. Major advances in the knowledge have been identified and future research directions are highlighted.
Collapse
Affiliation(s)
- Tereza Kunická
- Department of Toxicogenomics, National Institute of Public Health , Prague , Czech Republic
| | | |
Collapse
|
25
|
Cancer cell resistance mechanisms: a mini review. Clin Transl Oncol 2014; 16:511-6. [DOI: 10.1007/s12094-014-1162-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 02/04/2014] [Indexed: 12/16/2022]
|
26
|
Allyl isothiocyanate increases MRP1 function and expression in a human bronchial epithelial cell line. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:547379. [PMID: 24672635 PMCID: PMC3942196 DOI: 10.1155/2014/547379] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 11/26/2013] [Accepted: 12/11/2013] [Indexed: 11/28/2022]
Abstract
Multidrug resistance-associated protein 1 (MRP1), a member of the ATP-binding
cassette (ABC) superfamily of transporters, plays an important role in normal lung
physiology by protecting cells against oxidative stress and toxic xenobiotics. The present
study investigates the effects of allyl isothiocyanate (AITC) on MRP1 mRNA and MRP1
protein expression and transporter activity in the immortalised human bronchial epithelial
cell line 16HBE14o-. MRP1 mRNA and MRP1 protein expression in 16HBE14o- cells
that were treated with allyl isothiocyanate were analysed by real-time PCR assay and
Western blotting. The transport of carboxyfluorescein, a known MRP1 substrate, was
measured by functional flow cytometry to evaluate MRP1 activity. Treatment with AITC
at concentrations of 5–40 μM increased MRP1 protein levels in a
concentration-dependent manner. AITC treatments at concentrations of 1–40 μM caused
concentration-dependent increases in MRP1 mRNA levels that were up to seven times
greater than the levels found in control cells. Finally, AITC treatment at concentrations of
5–40 μM significantly increased MRP1-dependent efflux in 16HBE14o- cells. These
results suggest that AITC can increase the expression and activity of MRP1 in
16HBE14o- cells in a concentration-dependent manner. The upregulation of MRP1
activity and expression by AITC could produce therapeutic effects in the treatment of
lung disease.
Collapse
|
27
|
Akbas HS, Timur M, Ozben T. Concurrent use of antioxidants in cancer therapy: an update. Expert Rev Clin Immunol 2014; 2:931-9. [DOI: 10.1586/1744666x.2.6.931] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
28
|
Abel S, Lorieau A, de Foresta B, Dupradeau FY, Marchi M. Bindings of hMRP1 transmembrane peptides with dodecylphosphocholine and dodecyl-β-d-maltoside micelles: a molecular dynamics simulation study. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1838:493-509. [PMID: 24157718 DOI: 10.1016/j.bbamem.2013.10.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Revised: 09/17/2013] [Accepted: 10/14/2013] [Indexed: 12/24/2022]
Abstract
In this paper, we describe molecular dynamics simulation results of the interactions between four peptides (mTM10, mTM16, TM17 and KTM17) with micelles of dodecylphosphocholine (DPC) and dodecyl-β-d-maltoside (DDM). These peptides represent three transmembrane fragments (TM10, 16 and 17) from the MSD1 and MSD2 membrane-spanning domains of an ABC membrane protein (hMRP1), which play roles in the protein functions. The peptide-micelle complex structures, including the tryptophan accessibility and dynamics were compared to circular dichroism and fluorescence studies obtained in water, trifluoroethanol and with micelles. Our work provides additional results not directly accessible by experiments that give further support to the fact that these peptides adopt an interfacial conformation within the micelles. We also show that the peptides are more buried in DDM than in DPC, and consequently, that they have a larger surface exposure to water in DPC than in DDM. As noted previously by simulations and experiments we have also observed formation of cation-π bonds between the phosphocholine DPC headgroup and Trp peptide residue. Concerning the peptide secondary structures (SS), we find that in TFE their initial helical conformations are maintained during the simulation, whereas in water their initial SS are lost after few nanoseconds of simulation. An intermediate situation is observed with micelles, where the peptides remain partially folded and more structured in DDM than in DPC. Finally, our results show no sign of β-strand structure formation as invoked by far-UV CD experiments even when three identical peptides are simulated either in water or with micelles.
Collapse
Affiliation(s)
- Stéphane Abel
- Commissariat à l'Energie Atomique et aux Energies Alternatives, DSV/iBiTEC-S/SB2SM/LBMS & CNRS UMR 8221, Saclay, France.
| | | | | | | | | |
Collapse
|
29
|
Yamaguchi H, Kidachi Y, Kamiie K, Noshita T, Umetsu H, Fuke Y, Ryoyama K. Utilization of 6-(methylsulfinyl)hexyl isothiocyanate for sensitization of tumor cells to antitumor agents in combination therapies. Biochem Pharmacol 2013; 86:458-68. [DOI: 10.1016/j.bcp.2013.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 06/12/2013] [Accepted: 06/12/2013] [Indexed: 01/23/2023]
|
30
|
Tai DEJ, Jin WS, Wu CS, Si HW, Cao XD, Guo AJ, Chang JC. Changes in intracellular redox status influence multidrug resistance in gastric adenocarcinoma cells. Exp Ther Med 2012; 4:291-296. [PMID: 23139717 DOI: 10.3892/etm.2012.591] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Accepted: 05/15/2012] [Indexed: 12/27/2022] Open
Abstract
Multidrug resistance (MDR) to chemotherapeutic agents is a major obstacle for the treatment of various types of cancers. The exact mechanism of MDR has not yet been fully clarified, although it has been frequently associated with the variation of intracellular redox status. The levels of intracellular glutathione (GSH) are considered to play a vital role in the regulation of the intracellular redox status. In our study, we investigated the effects of buthionine sulfoximine (BSO), an inhibitor of GSH biosynthesis, and NAC, a cysteine source for GSH synthesis, on sensitive gastric adenocarcinoma cells (SGC7901) and cisplatin-resistant SGC7901/DDP cells using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The two cell lines were pretreated with various non-toxic concentrations of BSO for 24 h and combined with fluorouracil (5-FU) or mitomycin (MMC) in the presence or absence of NAC before culturing further. After various treatments, the IC(50) values of MMC and 5-FU were calculated and intracellular GSH levels were measured using the glutathione reductase/5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB) recycling assay without anticancer drug stimulation under the same microenvironments. The study demonstrated that BSO increased the sensitivity of the cells to chemotherapeutics while NAC exhibited the reverse effect, particularly in drug-resistant cells. It is, therefore, possible that changes in intracellular GSH levels affect the chemosensitivity of the resistant cells to a greater extent than that of their parent cells. This study indicates that variation in the intracellular redox status may be closely correlated with MDR and may provide a valuable basic strategy for anticancer therapy.
Collapse
Affiliation(s)
- DE-Jun Tai
- Department of General Surgery, The First Affiliated Hospital
| | | | | | | | | | | | | |
Collapse
|
31
|
Effects of N-acetylcystein on bleomycin-induced apoptosis in malignant testicular germ cell tumors. J Physiol Biochem 2012; 68:555-62. [DOI: 10.1007/s13105-012-0173-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 04/14/2012] [Indexed: 01/07/2023]
|
32
|
Menon JU, Kona S, Wadajkar AS, Desai F, Vadla A, Nguyen KT. Effects of surfactants on the properties of PLGA nanoparticles. J Biomed Mater Res A 2012; 100:1998-2005. [PMID: 22566409 DOI: 10.1002/jbm.a.34040] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 12/01/2011] [Accepted: 12/08/2011] [Indexed: 12/24/2022]
Abstract
The objective of this study was to investigate the physical characteristics of poly(D,L-lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) coated with two surfactants, Pluronic or the commonly used polyvinyl alcohol (PVA); and determine their in vitro efficiency as drug carriers for cancer therapy. Free surfactant cytotoxicity results indicated that Pluronic F127 (PF127) was most cytocompatible among the Pluronics tested and hence chosen for coating PLGA NPs for further studies. Release studies using doxorubicin (DOX) as a drug model showed sustained release of DOX from both PVA- and PF127-coated PLGA NPs (PLGA-PVA and PLGA-PF127, respectively) over 28 days. Further, there was no significant difference in human dermal fibroblasts and human aortic smooth muscle cell survival when exposed to both types of NPs. Cellular uptake studies demonstrated that uptake of both nanoparticle types was dose-dependent for both prostate and breast cancer cells. However, these cancer cells internalized more PLGA-PF127 NPs than PLGA-PVA NPs. Moreover, studies showed that drug-loaded PLGA-PF127 NPs not only killed more cancer cells than drug-loaded PLGA-PVA NPs, but also overcame drug resistance in LNCaP, MDA-MB-231, and MDA-MB-468 cancer cells on re-exposure. These results indicate that PLGA-PF127 NPs can form a promising system that not only delivers anti-cancer drugs, but also overcomes drug resistance, which is prevalent in most cancer cells.
Collapse
Affiliation(s)
- Jyothi U Menon
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, USA
| | | | | | | | | | | |
Collapse
|
33
|
Heffeter P, Pirker C, Kowol CR, Herrman G, Dornetshuber R, Miklos W, Jungwirth U, Koellensperger G, Keppler BK, Berger W. Impact of terminal dimethylation on the resistance profile of α-N-heterocyclic thiosemicarbazones. Biochem Pharmacol 2012; 83:1623-33. [PMID: 22426010 PMCID: PMC3342514 DOI: 10.1016/j.bcp.2012.03.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 03/05/2012] [Accepted: 03/06/2012] [Indexed: 12/24/2022]
Abstract
Triapine is an α-N-heterocyclic thiosemicarbazone with promising anticancer activity against hematologic malignancies but widely ineffective against solid tumor types in clinical trials. The anticancer activity of thiosemicarbazones can be dramatically increased by terminal dimethylation. KP1089 is a gallium compound containing two terminal dimethylated thiosemicarbazone ligands. To gain insights on the vulnerability of this highly active terminal dimethylated thiosemicarbazone to drug resistance mechanisms, a new cell model with acquired resistance against the lead compound KP1089 was established. Subsequent genomic analyses (arrayCGH and FISH) revealed amplification of the ABCC1 gene on double minute chromosomal DNA in KP1089-resistant cells as well as overexpression of ABCC1 and ABCG2 on the protein level. KP1089 was further confirmed as a substrate of ABCC1 and ABCG2 but not of ABCB1 using a panel of ABC transporter-overexpressing cell models as well as ABC transporter inhibitors. Moreover, glutathione depletion strongly enhanced KP1089 activity, although no glutathione conjugate formation by glutathione-S-transferase was observed. Thus, a co-transport of KP1089 together with glutathione is suggested. Finally, a panel of thiosemicarbazone derivatives was tested on the new KP1089-resistant cell line. Notably, KP1089-resistant cells were not cross-resistant against thiosemicarbazones lacking terminal dimethylation (e.g. Triapine) which are less active than KP1089. This suggests that terminal dimethylation of thiosemicarbazones – linked with distinctly enhanced anticancer activity – leads to altered resistance profiles compared to classical thiosemicarbazones making this compound class of interest for further (pre)clinical evaluation.
Collapse
Affiliation(s)
- Petra Heffeter
- Department of Medicine I, Institute of Cancer Research, Medical University of Vienna, Borschkegasse 8a, A-1090 Vienna, Austria
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Lee SW, Cho HY, Na G, Yoo MR, Seo SK, Hur DY, Han J, Lee CK, Choi I. CD40 stimulation induces vincristine resistance via AKT activation and MRP1 expression in a human multiple myeloma cell line. Immunol Lett 2012; 144:41-8. [PMID: 22445357 DOI: 10.1016/j.imlet.2012.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 02/15/2012] [Accepted: 03/04/2012] [Indexed: 12/26/2022]
Abstract
Various co-stimulatory receptors are expressed in multiple myeloma (MM) both in immune microenvironment and in the tumor microenvironment in vivo. In relapsed human MM, these receptors are known to increase cell proliferation and induce conventional drug resistance. However, the mechanism of drug resistance induced via co-stimulatory receptors is poorly understood. In this study, we examined the role of CD40 expressed on MM cell lines. Out of all of the KMS MM cell lines, the KMS28BM cells expressed high levels of the CD40 receptor. When stimulated with anti-CD40 antibody or recombinant human CD40L, the proliferation of KMS28BM cells was increased 1.7 fold. In CD40-stimulated KMS28BM cells, signaling via the AKT pathway caused an increase in the expression of multidrug resistance-associated gene 1 (MRP1) and IL-6 by 2.2 fold and 30 fold, respectively, but not the MDR1 gene. Furthermore, CD40-stimulated KMS28BM cells were observed to be substantially resistant to the anticancer drug vincristine, and when cells were treated with the MRP1 specific inhibitor, MK-571, drug resistance was decreased. We also found that CD40-stimulated, MRP1-expressing KMS28BM cells significantly increased calcein efflux, and calcein efflux was inhibited through treatment with MK-571. Therefore, blocking CD40 and inhibiting MRP1 are potential targets to treat CD40-induced drug resistance in multiple myeloma.
Collapse
Affiliation(s)
- Soo-Woong Lee
- Advanced Research Center for Multiple Myeloma, College of Medicine, Inje University, Busan, Republic of Korea.
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Taherian A, Mazoochi T. Different Expression of Extracellular Signal-Regulated Kinases (ERK) 1/2 and Phospho-Erk Proteins in MBA-MB-231 and MCF-7 Cells after Chemotherapy with Doxorubicin or Docetaxel. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2012; 15:669-77. [PMID: 23493035 PMCID: PMC3586869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Accepted: 07/19/2011] [Indexed: 12/05/2022]
Abstract
OBJECTIVES Curative treatment of breast cancer patients using chemotherapy often fails as a result of intrinsic or acquired resistance of the tumor to the drug. ERK is one of the main components of the Ras/Raf/MEK/ERK cascade, which mediates signal from cell surface receptors to transcription factors to regulate different gene expression. In this study, cytotoxicity and the expression of Erk1/2 and phospho-ERK was compared in MDA-MB-231 (ER-) and MCF-7 (ER+) cell lines after treatment with doxorubicin (DOX) or docetaxel (DOCT). MATERIALS AND METHODS Cell cytotoxicity of DOX or DOCT was calculated using MTT assay. Immonofluorescent technique was used to show MDR-1 protein in MDA-MB-231 and MCF-7 cells after treatment with DOX or DOCT. The expression of ERK1/2 and phpspho-ERK was assayed with immunoblotting. RESULTS Comparing IC50 values showed that MDA-MB-231 cells are more sensitive than MCF-7 cells to DOX or DOCT. Immonofluorescent results confirmed the expression of MDR-1 in these two cell lines after DOX or DOCT treatment. In MDA-MB-231 cells the expression of ERK1/2 and phospho-ERK was decreased after DOX treatment in a dose-dependent manner. In contrast in MCF-7 cells the expression of ERK1/2 and phospho-ERK was increased after DOX treatment. DOCT treatment demonstrated the same result with less significant differences than DOX. CONCLUSION The heterogeneity seen in cell lines actually reflects the heterogeneity of breast cancers. That is why, patients categorized in one group respond differently to a single treatment. These results emphasize the importance of a more accurate classification and a more specific treatment of breast cancer subtypes.
Collapse
Affiliation(s)
- Aliakbar Taherian
- 1- Kashan Anatomical Research Centre, Kashan University of Medical Science, Kashan, Iran,Corresponding author: Tel: +98-361-5550021-22; Fax: +98-361-5551112;
| | - Tahereh Mazoochi
- 1- Kashan Anatomical Research Centre, Kashan University of Medical Science, Kashan, Iran
| |
Collapse
|
36
|
Modulation of doxorubicin resistance by the glucose-6-phosphate dehydrogenase activity. Biochem J 2011; 439:141-9. [PMID: 21679161 DOI: 10.1042/bj20102016] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
How anti-neoplastic agents induce MDR (multidrug resistance) in cancer cells and the role of GSH (glutathione) in the activation of pumps such as the MRPs (MDR-associated proteins) are still open questions. In the present paper we illustrate that a doxorubicin-resistant human colon cancer cell line (HT29-DX), exhibiting decreased doxorubicin accumulation, increased intracellular GSH content, and increased MRP1 and MRP2 expression in comparison with doxorubicin-sensitive HT29 cells, shows increased activity of the PPP (pentose phosphate pathway) and of G6PD (glucose-6-phosphate dehydrogenase). We observed the onset of MDR in HT29 cells overexpressing G6PD which was accompanied by an increase in GSH. The G6PD inhibitors DHEA (dehydroepiandrosterone) and 6-AN (6-aminonicotinamide) reversed the increase of G6PD and GSH and inhibited MDR both in HT29-DX cells and in HT29 cells overexpressing G6PD. In our opinion, these results suggest that the activation of the PPP and an increased activity of G6PD are necessary to some MDR cells to keep the GSH content high, which is in turn necessary to extrude anticancer drugs out of the cell. We think that our data provide a new further mechanism for GSH increase and its effects on MDR acquisition.
Collapse
|
37
|
Fodale V, Pierobon M, Liotta L, Petricoin E. Mechanism of cell adaptation: when and how do cancer cells develop chemoresistance? Cancer J 2011; 17:89-95. [PMID: 21427552 DOI: 10.1097/ppo.0b013e318212dd3d] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Chemotherapy treatments are considered essential tools to defeat cancer progression and dissemination to improve patients' quality of life and survival. Although most malignancies initially respond to chemotherapeutic treatments, after an unpredictable period, tumor cells develop mechanisms of resistance to the treatment. Different cell compartments are involved in the mechanism of chemoresistance, and multiple mechanisms can be activated by single cells at different times of the cancer progression. Alteration of drug metabolism, derangement of intracellular pathways' signaling, cross-talk between different membrane receptors, and modification of apoptotic signaling and interference with cell replication are all mechanisms that the cell uses to overcome the effect of pharmacological compounds.In this review, we describe different adaptation, mostly at the level of the proteome, which cancer cells use to develop resistance to cancer treatment.
Collapse
Affiliation(s)
- Valentina Fodale
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA, USA
| | | | | | | |
Collapse
|
38
|
Mathema VB, Koh YS, Thakuri BC, Sillanpää M. Parthenolide, a Sesquiterpene Lactone, Expresses Multiple Anti-cancer and Anti-inflammatory Activities. Inflammation 2011; 35:560-5. [DOI: 10.1007/s10753-011-9346-0] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
39
|
Peigñan L, Garrido W, Segura R, Melo R, Rojas D, Cárcamo JG, San Martín R, Quezada C. Combined use of anticancer drugs and an inhibitor of multiple drug resistance-associated protein-1 increases sensitivity and decreases survival of glioblastoma multiforme cells in vitro. Neurochem Res 2011; 36:1397-406. [PMID: 21544552 DOI: 10.1007/s11064-011-0464-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2011] [Indexed: 12/25/2022]
Abstract
Glioblastoma multiforme (GBM) is a brain tumour characterised by a remarkably high chemoresistance and infiltrating capability. To date, chemotherapy with temozolomide has contributed only poorly to improved survival rates in patients. One of the most important mechanisms of chemoresistance comes about through the activity of certain proteins from the ATP-binding cassette superfamily that extrudes antitumour drugs, or their metabolites, from cells. We identify an increased expression of the multiple drug resistance-associated protein 1 (Mrp1) in glioblastoma multiforme biopsies and in T98G and G44 cell lines. The activity of this transporter was also confirmed by measuring the extrusion of the fluorescent substrate CFDA. The sensitivity of GBM cells was low upon exposure to temozolomide, vincristine and etoposide, with decreases in cell viability of below 20% seen at therapeutic concentrations of these drugs. However, combined exposure to vincristine or etoposide with an inhibitor of Mrp1 efficiently decreased cell viability by up to 80%. We conclude that chemosensitization of cells with inhibitors of Mrp1 activity might be an efficient tool for the treatment of human GBM.
Collapse
Affiliation(s)
- Lilia Peigñan
- Instituto de Bioquímica, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja s/n, P.O. box 567, Valdivia, Chile
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Landriscina M, Maddalena F, Laudiero G, Esposito F. Adaptation to oxidative stress, chemoresistance, and cell survival. Antioxid Redox Signal 2009; 11:2701-16. [PMID: 19778285 DOI: 10.1089/ars.2009.2692] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The discovery of some additional properties and functions of reactive oxygen species (ROS), beyond their toxic effects, provides a novel scenario for the molecular basis and cell regulation of several pathophysiologic processes. ROS are generated by redox-sensitive, prosurvival signaling pathways and function as second messengers in the transduction of several extracellular signals. A complex intracellular redox buffering network has developed to adapt and protect cells against the dangerous effects of oxidative stress. However, pathways involved in ROS-adaptive response may also play a critical role in protecting cells against cytotoxic effects of anticancer agents, thus supporting the hypothesis of a correlation between adaptation/resistance to oxidative stress and resistance to anticancer drugs. This review summarizes the main systems involved in the adaptive responses: an overview on the pathophysiologic relevance of mitochondria on redox-sensitive transcription factors and genes and main antioxidant networks in tumor cells is provided. One of the major aims is to highlight the adaptive mechanisms and their interplay in the intricate connection between oncogenic signaling, oxidative stress, and chemoresistance. Clarification of these mechanisms has tremendous application potential, in terms of developing novel molecular-targeted anticancer therapies and innovative strategies for rational combination of these agents with chemotherapeutic or tumor-specific biologic drugs.
Collapse
Affiliation(s)
- Matteo Landriscina
- Clinical Oncology Unit, Department of Medical Sciences, University of Foggia, Foggia, Italy
| | | | | | | |
Collapse
|
41
|
Fernandes J, Gattass CR. Topological polar surface area defines substrate transport by multidrug resistance associated protein 1 (MRP1/ABCC1). J Med Chem 2009; 52:1214-8. [PMID: 19193010 DOI: 10.1021/jm801389m] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multidrug resistance-associated protein 1 (MRP1/ABCC1) is a very promiscuous transporter. Herein we used topological polar surface area (TPSA), a descriptor defined as the sum of surfaces of polar atoms in a molecule, to analyze drug transport by MRP1. We suggested that compounds with high TPSA are transported while those with low TPSA are not. The conjugation to GSH increases TPSA values favoring transport. A strong correlation between TPSA and transport properties (K(m)) was also found.
Collapse
Affiliation(s)
- Janaina Fernandes
- Instituto de Biofísica Carlos Chagas Filho, Laboratório de Imunologia Celular, Universidade Federal do Rio de Janeiro, 21949-900 Rio de Janeiro, Brazil.
| | | |
Collapse
|
42
|
van der Deen M, Homan S, Timmer-Bosscha H, Scheper RJ, Timens W, Postma DS, de Vries EG. Effect of COPD treatments on MRP1-mediated transport in bronchial epithelial cells. Int J Chron Obstruct Pulmon Dis 2009; 3:469-75. [PMID: 18990976 PMCID: PMC2629975 DOI: 10.2147/copd.s2817] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background Smoking is the principle risk factor for development of chronic obstructive pulmonary disease (COPD). Multidrug resistance-associated protein 1 (MRP1) is known to protect against toxic compounds and oxidative stress, and might play a role in protection against smoke-induced disease progression. We questioned whether MRP1-mediated transport is influenced by pulmonary drugs that are commonly prescribed in COPD. Methods The immortalized human bronchial epithelial cell line 16HBE14o− was used to analyze direct in vitro effects of budesonide, formoterol, ipratropium bromide and N-acetylcysteine (NAC) on MRP1-mediated transport. Carboxyfluorescein (CF) was used as a model MRP1 substrate and was measured with functional flow cytometry. Results Formoterol had a minor effect, whereas budesonide concentration-dependently decreased CF transport by MRP1. Remarkably, addition of formoterol to the highest concentration of budesonide increased CF transport. Ipratropium bromide inhibited CF transport at low concentrations and tended to increase CF transport at higher levels. NAC increased CF transport by MRP1 in a concentration-dependent manner. Conclusions Our data suggest that, besides their positive effects on respiratory symptoms, budesonide, formoterol, ipratropium bromide, and NAC modulate MRP1 activity in bronchial epithelial cells. Further studies are required to assess whether stimulation of MRP1 activity is beneficial for long-term treatment of COPD.
Collapse
|
43
|
Meijerman I, Beijnen JH, Schellens JH. Combined action and regulation of phase II enzymes and multidrug resistance proteins in multidrug resistance in cancer. Cancer Treat Rev 2008; 34:505-20. [DOI: 10.1016/j.ctrv.2008.03.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 02/11/2008] [Accepted: 03/01/2008] [Indexed: 01/16/2023]
|
44
|
Lau A, Villeneuve NF, Sun Z, Wong PK, Zhang DD. Dual roles of Nrf2 in cancer. Pharmacol Res 2008; 58:262-70. [PMID: 18838122 DOI: 10.1016/j.phrs.2008.09.003] [Citation(s) in RCA: 527] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 09/07/2008] [Accepted: 09/08/2008] [Indexed: 02/07/2023]
Abstract
In response to oxidative stress, the transcription factor NF-E2-related factor 2 (Nrf2) controls the fate of cells through transcriptional upregulation of antioxidant response element (ARE)-bearing genes, including those encoding endogenous antioxidants, phase II detoxifying enzymes, and transporters. Expression of the Nrf2-dependent proteins is critical for ameliorating or eliminating toxicants/carcinogens to maintain cellular redox homeostasis. As a result, activation of the Nrf2 pathway, by naturally-occurring compounds or synthetic chemicals at sub-toxic doses, confers protection against subsequent toxic/carcinogenic exposure. Thus, the use of dietary compounds or synthetic chemicals to boost the Nrf2-dependent adaptive response to counteract environmental insults has emerged to be a promising strategy for cancer prevention. Interestingly, recent emerging data has revealed the "dark" side of Nrf2. Nrf2 and its downstream genes are overexpressed in many cancer cell lines and human cancer tissues, giving cancer cells an advantage for survival and growth. Furthermore, Nrf2 is upregulated in resistant cancer cells and is thought to be responsible for acquired chemoresistance. Therefore, it may be necessary to inhibit the Nrf2 pathway during chemotherapy. This review is primarily focused on the role of Nrf2 in cancer, with emphasis on the recent findings indicating the cancer promoting function of Nrf2 and its role in acquired chemoresistance.
Collapse
Affiliation(s)
- Alexandria Lau
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, USA
| | | | | | | | | |
Collapse
|
45
|
Abstract
It is well established that some chemotherapeutic agents and radiation therapy generate reactive oxygen species (ROS) in patients during cancer therapy. Free radicals, particularly ROS have been proposed as common mediators for apoptosis. Recent studies have demonstrated that the mode of cell death depends on the severity of the oxidative damage. This review will address some of the current paradigms of oxidative stress, and antioxidants on apoptosis, and discuss the potential mechanisms by which oxidants can regulate apoptotic pathways. It will also review new developments in eliminating cancer cells by selectively inducing apoptosis.
Collapse
Affiliation(s)
- Tomris Ozben
- Department of Biochemistry, Medical Faculty, Akdeniz University, 07070 Antalya, Turkey.
| |
Collapse
|
46
|
Tsai SY, Sun NK, Lu HP, Cheng ML, Chao CCK. Involvement of reactive oxygen species in multidrug resistance of a vincristine-selected lymphoblastoma. Cancer Sci 2007; 98:1206-14. [PMID: 17517054 PMCID: PMC11158752 DOI: 10.1111/j.1349-7006.2007.00513.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Our previous study identified a vincristine-selected multidrug resistance (MDR) cell line, HOB1/VCR, derived from a lymphoblastoma HOB1. The HOB1/VCR cells are resistant to typical MDR drugs and are cross-resistant to P-glycoprotein-independent drugs such as cisplatin (cis-diamminedichloroplatinum [II]). The mechanism of this atypical MDR phenotype is uncertain. The present study provides evidence regarding the contribution of reactive oxygen species (ROS) to the resistance of cells in response to treatments (vincristine, cisplatin and H2O2). Notably, the HOB1/VCR cells were cross-resistant to H2O2. High levels of ROS formed in both sensitive and HOB1/VCR cells by H2O2, and moderate levels of ROS were generated by treatment with cisplatin and vincristine. The ROS level in HOB1/VCR cells was lower than that in sensitive cells following treatments. The ROS level was reduced markedly by a non-toxic concentration of N-acetyl-L-cysteine, a ROS scavenger, in drug-treated cells, and was correlated with reduced cytotoxicity. Furthermore, concentrations of glutathione and glutathione peroxidase, but not superoxide dismutase and catalase, increased in HOB/VCR cells. The DL-buthionine-[S,R]-sulfoximine inhibited formation of glutathione and sensitized both cell types to treatments. Therefore, overexpression of an H2O2-reducing system, glutathione-glutathione peroxidase, has a role in resistance. Experimental results further demonstrate that ROS is likely a primary signal in the acquisition of the MDR phenotype and therefore a potential target when designing drugs for chemoresistance.
Collapse
Affiliation(s)
- Shih-Ying Tsai
- Tumor Biology Laboratory, Department of Biochemistry, Chang Gung University, Kwei-Shan Taoyuan 333, Taiwan
| | | | | | | | | |
Collapse
|
47
|
Chang XB. A molecular understanding of ATP-dependent solute transport by multidrug resistance-associated protein MRP1. Cancer Metastasis Rev 2007; 26:15-37. [PMID: 17295059 DOI: 10.1007/s10555-007-9041-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Over a million new cases of cancers are diagnosed each year in the United States and over half of these patients die from these devastating diseases. Thus, cancers cause a major public health problem in the United States and worldwide. Chemotherapy remains the principal mode to treat many metastatic cancers. However, occurrence of cellular multidrug resistance (MDR) prevents efficient killing of cancer cells, leading to chemotherapeutic treatment failure. Numerous mechanisms of MDR exist in cancer cells, such as intrinsic or acquired MDR. Overexpression of ATP-binding cassette (ABC) drug transporters, such as P-glycoprotein (P-gp or ABCB1), breast cancer resistance protein (BCRP or ABCG2) and/or multidrug resistance-associated protein (MRP1 or ABCC1), confers an acquired MDR due to their capabilities of transporting a broad range of chemically diverse anticancer drugs. In addition to their roles in MDR, there is substantial evidence suggesting that these drug transporters have functions in tissue defense. Basically, these drug transporters are expressed in tissues important for absorption, such as in lung and gut, and for metabolism and elimination, such as in liver and kidney. In addition, these drug transporters play an important role in maintaining the barrier function of many tissues including blood-brain barrier, blood-cerebral spinal fluid barrier, blood-testis barrier and the maternal-fetal barrier. Thus, these ATP-dependent drug transporters play an important role in the absorption, disposition and elimination of the structurally diverse array of the endobiotics and xenobiotics. In this review, the molecular mechanism of ATP-dependent solute transport by MRP1 will be addressed.
Collapse
Affiliation(s)
- Xiu-bao Chang
- Mayo Clinic College of Medicine, Scottsdale, AZ 85259, USA.
| |
Collapse
|
48
|
Leite DFP, Echevarria-Lima J, Calixto JB, Rumjanek VM. Multidrug resistance related protein (ABCC1) and its role on nitrite production by the murine macrophage cell line RAW 264.7. Biochem Pharmacol 2007; 73:665-74. [PMID: 17169333 DOI: 10.1016/j.bcp.2006.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2006] [Revised: 09/23/2006] [Accepted: 11/06/2006] [Indexed: 11/23/2022]
Abstract
Multidrug resistance related protein 1 (MRP1/ABCC1) is an ABC transporter protein related to the extrusion of reduced glutathione (GSH), oxidized glutathione (GSSG) and GSH-conjugates, as well as leukotriene C(4) and cyclopentane prostaglandins. Inhibition of ABCC1 activity impairs lymphocyte activation. The present work studied ABCC1 expression and activity on a murine macrophage cell line, RAW 267.4 and the effects of ABCC1 classical inhibitors, as well as GSH metabolism modulators, on LPS induced activation. Approximately, 75% of resting cells were positive for ABCC1 and the classical ABCC1 reversors (indomethacin, 0.1-2mM; probenecid, 0.1-10mM and MK571, 0.01-1mM) were able to enhance intracellular CFDA accumulation in a concentration-dependent manner, suggesting ABCC1 inhibition. After LPS (100ng/ml) activation 50% of the population was positive for ABCC1, and this protein was still active. In LPS-activated cells, ABCC1 activity was also impaired by BSO (1mM), an inhibitor of GSH synthesis. Conversely, GSH (5mM) reversed the BSO effect. ABCC1 inhibition by indomethacin, probenecid or MK571 decreased LPS induced nitrite production in a concentration-dependent manner, the same result was observed with BSO and again GSH reversed its effect. The ABCC1 reversors were also able to inhibit iNOS expression. In conclusion, LPS modulated the expression and activity of ABCC1 transporters in RAW macrophages and inhibitors of these transporters were capable of inhibiting nitrite production suggesting a role for ABCC1 transporters in the inflammatory process.
Collapse
Affiliation(s)
- Daniela F P Leite
- Instituto de Bioquímica Médica, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil
| | | | | | | |
Collapse
|
49
|
Hamilton D, Wu JH, Batist G. Structure-based identification of novel human gamma-glutamylcysteine synthetase inhibitors. Mol Pharmacol 2007; 71:1140-7. [PMID: 17229871 DOI: 10.1124/mol.106.024778] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Glutathione depletion represents a potentially important strategy to sensitize tumors to cytotoxic drugs. l-Buthionine-(R,S)-sulfoximine (l-BSO) has been studied in both preclinical and early clinical trials, but limitation on its access has led to a search for alternatives. Using a 3D molecular model of human gamma-glutamylcysteine synthetase (gamma-GCS(H)), the major subunit of the rate-limiting GSH synthetic enzyme, we virtually screened the National Cancer Institute chemical database to identify compounds that could bind to and potentially inhibit gamma-GCS(H). We identified 51 test chemicals, all with structures very distinct from l-BSO. We subjected these compounds to biological assays measuring gamma-GCS(H) inhibition and glutathione (GSH) depletion. Among 10 novel gamma -GCS inhibitors identified, 4 compounds depleted glutathione in cells, and 2 with related structures sensitized tumor cells to melphalan treatment. This work validates the use of model-based database mining and identified inhibitors of gamma-GCS(H) with novel chemical structures.
Collapse
Affiliation(s)
- David Hamilton
- Department of Oncology, McGill University, Montreal Centre for Experimental Therapeutics in Cancer and Segal Cancer Centre, Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada
| | | | | |
Collapse
|
50
|
Ozben T. Mechanisms and strategies to overcome multiple drug resistance in cancer. FEBS Lett 2006; 580:2903-9. [PMID: 16497299 DOI: 10.1016/j.febslet.2006.02.020] [Citation(s) in RCA: 292] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2006] [Accepted: 02/09/2006] [Indexed: 10/25/2022]
Abstract
One of the major problems in chemotherapy is multidrug resistance (MDR) against anticancer drugs. ATP-binding cassette (ABC) transporters are a family of proteins that mediate MDR via ATP-dependent drug efflux pumps. Many MDR inhibitors have been identified, but none of them have been proven clinically useful without side effects. Efforts continue to discover not toxic MDR inhibitors which lack pharmacokinetic interactions with anticancer drugs. Novel approaches have also been designed to inhibit or circumvent MDR. In this review, the structure and function of ABC transporters and development of MDR inhibitors are described briefly including various approaches to suppress MDR mechanisms.
Collapse
Affiliation(s)
- Tomris Ozben
- Akdeniz University, Faculty of Medicine, Department of Biochemistry, 07070 Antalya, Turkey.
| |
Collapse
|