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Kobori T, Ito Y, Sawada Y, Urashima Y, Ito T, Obata T. Cellular Membrane Localization of Innate Immune Checkpoint Molecule CD47 Is Regulated by Radixin in Human Pancreatic Ductal Adenocarcinoma Cells. Biomedicines 2023; 11:biomedicines11041117. [PMID: 37189735 DOI: 10.3390/biomedicines11041117] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/29/2023] [Accepted: 04/05/2023] [Indexed: 05/17/2023] Open
Abstract
In the past decade, immune checkpoint inhibitors have exhibited potent antitumor efficacy against multiple solid malignancies but limited efficacy against pancreatic ductal adenocarcinoma (PDAC). Cluster of differentiation (CD) 47, a member of the immunoglobulin G superfamily, is overexpressed in the surface membrane of PDAC and independently correlates with a worse clinical prognosis. Furthermore, CD47 functions as a dominant macrophage checkpoint, providing a potent "do not eat me" signal to enable cancer cells to evade the innate immune system. Thus, the blockade of CD47 is a promising immunotherapeutic strategy for PDAC. In this study, we determined whether ezrin/radixin/moesin (ERM) family members, which post-translationally modulate the cellular membrane localization of numerous transmembrane proteins by crosslinking with the actin cytoskeleton, contribute to the cellular membrane localization of CD47 in KP-2 cells derived from human PDAC. Immunofluorescence analysis showed that CD47 and ezrin/radixin were highly co-localized in the plasma membrane. Interestingly, gene silencing of radixin but not ezrin dramatically decreased the cell surface expression of CD47 but had little effects on its mRNA level. Furthermore, CD47 and radixin interacted with each other, as determined by a co-immunoprecipitation assay. In conclusion, radixin regulates the cellular membrane localization of CD47 as a scaffold protein in KP-2 cells.
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Affiliation(s)
- Takuro Kobori
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Yui Ito
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Yuka Sawada
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Yoko Urashima
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Takuya Ito
- Laboratory of Natural Medicines, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Tokio Obata
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
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Moesin Serves as Scaffold Protein for PD-L1 in Human Uterine Cervical Squamous Carcinoma Cells. J Clin Med 2022; 11:jcm11133830. [PMID: 35807113 PMCID: PMC9267616 DOI: 10.3390/jcm11133830] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/17/2022] [Accepted: 06/30/2022] [Indexed: 02/04/2023] Open
Abstract
Immune checkpoint blockade (ICB) therapy targeting the programmed death ligand-1 (PD-L1)/PD-1 axis has emerged as a promising treatment for uterine cervical cancer; however, only a small subset of patients with uterine cervical squamous cell carcinoma (SCC) derives clinical benefit from ICB therapies. Thus, there is an urgent unmet medical need for novel therapeutic strategies to block the PD-L1/PD-1 axis in patients with uterine cervical SCC. Here, we investigated the involvement of ezrin/radixin/moesin (ERM) family scaffold proteins, which crosslink several plasma membrane proteins with the actin cytoskeleton, on the plasma membrane localization of PD-L1 in BOKU and HCS-2 cells derived from human uterine cervical SCC. Immunofluorescence analysis showed that PD-L1 colocalized with all three ERM proteins in the plasma membrane. Gene knockdown of moesin, but not ezrin and radixin, substantially reduced the plasma membrane expression of PD-L1, with limited effect on mRNA expression. An immunoprecipitation assay demonstrated the molecular interaction between PD-L1 and moesin. Moreover, phosphorylated, i.e., activated, moesin was highly colocalized with PD-L1 in the plasma membrane. In conclusion, moesin may be a scaffold protein responsible for the plasma membrane expression of PD-L1 in human uterine cervical SCC.
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Ezrin and Radixin Differentially Modulate Cell Surface Expression of Programmed Death Ligand-1 in Human Pancreatic Ductal Adenocarcinoma KP-2 Cells. IMMUNO 2022. [DOI: 10.3390/immuno2010006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Immune checkpoint blockade (ICB) therapies, such as immune checkpoint inhibitors against programmed death ligand-1 (PD-L1), have not been successful in treating patients with pancreatic ductal adenocarcinoma (PDAC). Despite the critical role of PD-L1 in various types of cancers, the regulatory mechanism of PD-L1 expression on the cell surface of PDAC is poorly understood. Therefore, uncovering potential modulators of cell surface localisation of PD-L1 may provide a new strategy to improve ICB therapy in patients with PDAC. Here, we examined the role of ezrin/radixin/moesin (ERM) family scaffold proteins that crosslink transmembrane proteins with the actin cytoskeleton in the surface localisation of PD-L1 in KP-2 cells, a human PDAC cell line. Our results demonstrated the abundant protein expression of PD-L1, ezrin, and radixin, but not moesin, as well as their colocalisation in the plasma membrane. Interestingly, immunoprecipitation analysis detected the molecular interaction of PD-L1 with ezrin and radixin. Moreover, gene silencing of ezrin moderately decreased the mRNA and cell surface expression of PD-L1, while that of radixin greatly decreased the surface expression of PD-L1 without altering the mRNA levels. Thus, radixin and ezrin differentially modulate the cell surface localisation of PD-L1 in KP-2 cells, highlighting a potential therapeutic target to improve the current ICB therapy in PDAC.
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Increased brain penetration of diphenhydramine and memantine in rats with adjuvant-induced arthritis. Brain Res 2021; 1768:147581. [PMID: 34280372 DOI: 10.1016/j.brainres.2021.147581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 05/21/2021] [Accepted: 07/12/2021] [Indexed: 11/20/2022]
Abstract
Brain penetration of cationic drugs is an important determinant of their efficacy and side effects. However, the effects of alterations in the activity of uptake transporters in the brain under inflammatory conditions on the brain penetration of cationic drugs are not fully understood. The aim of this study was to examine changes in brain penetration of cationic drugs, including diphenhydramine (DPHM), memantine (MMT), and cimetidine (CMD), and changes in the expression of uptake transporters such as organic cation transporter (Oct) in brain microvascular endothelial cells (BMECs) under inflammatory conditions. To clarify the effects of inflammation on the brain penetration of DPHM, MMT, and CMD, we performed brain microdialysis studies in a rat model of adjuvant-induced arthritis (AA). Further, differences in transporter mRNA expression levels between BMECs from control and AA rats were evaluated. Brain microdialysis showed that the unbound brain-to-plasma partition coefficient (Kp,uu,brain) for DPHM and MMT was significantly lower in AA rats compared with control rats. OCT mRNA levels were increased and proton-coupled organic cation (H+/OC) antiporter mRNA levels were decreased in AA rats compared with control rats. Taken together, our findings suggest that inflammation decreases the brain penetration of H+/OC antiporter substrates such as DPHM and MMT.
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Kawase A, Hirosoko M, Sugihara Y, Koyama Y, Fukae A, Shimada H, Iwaki M. NHERF1/EBP50 as a Target for Modulation of MRP Function in HepG2 Cells. Pharmaceuticals (Basel) 2021; 14:ph14030239. [PMID: 33800412 PMCID: PMC8002045 DOI: 10.3390/ph14030239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/16/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022] Open
Abstract
As increased expression and activities of efflux transporters (ETs) often cause drug resistance in cancers, we tried modulating ET activity in cancer cells, using scaffold proteins such as ezrin/radixin/moesin (ERM) proteins, and Na+/H+ exchanger regulatory factor-1 (NHERF1)/ERM-binding phosphoprotein of 50 kDa (EBP50). To see whether EBP50 modulated ET activities in human liver cancer HepG2 cells, we used EBP50 siRNA and a designed TAT-PDZ1 peptide. The EBP50 knockdown (EBP50KD) cells had significantly higher intracellular accumulations of Rho123 and carboxy-dichlorofluorescein (CDF), but not H33342 (i.e., the respective substrates of P-glycoprotein (P-gp), multidrug resistance-associated protein (MRP), and breast cancer resistance protein (BCRP)), compared with control HepG2, suggesting that EBP50 knockdown in HepG2 cells decreased activity of P-gp and MRP but not BCRP. Treatment with TAT-PDZ1 peptide (>1 pM) resulted in significantly higher CDF accumulation in HepG2 cells, which persisted for ≥180 min after TAT-PDZ1 peptide treatment. These results imply that EBP50 can modulate ET activities. To our knowledge, this is the first report on using a competitive peptide to modulate interactions between MRP and EBP50.
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Affiliation(s)
- Atsushi Kawase
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
- Correspondence:
| | - Miho Hirosoko
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
| | - Yuka Sugihara
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
| | - Yunosuke Koyama
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
| | - Ayaka Fukae
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
| | - Hiroaki Shimada
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
| | - Masahiro Iwaki
- Department of Pharmacy, Faculty of Pharmacy, Kindai University, Osaka 577-8502, Japan; (M.H.); (Y.S.); (Y.K.); (A.F.); (H.S.); (M.I.)
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka 577-8502, Japan
- Antiaging Center, Kindai University, Osaka 577-8502, Japan
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Yano K, Okabe C, Fujii K, Kato Y, Ogihara T. Regulation of breast cancer resistance protein and P-glycoprotein by ezrin, radixin and moesin in lung, intestinal and renal cancer cell lines. J Pharm Pharmacol 2020; 72:575-582. [DOI: 10.1111/jphp.13225] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 12/06/2019] [Indexed: 12/19/2022]
Abstract
Abstract
Objectives
Ezrin (Ezr), radixin (Rdx) and moesin (Msn) (ERM) proteins anchor other proteins to the cell membrane, serving to regulate their localization and function. Here, we examined whether ERM proteins functionally regulate breast cancer resistance protein (BCRP) and P-glycoprotein in cell lines derived from lung, intestinal and renal cancers.
Methods
ERM proteins were each silenced with appropriate siRNA. BCRP and P-gp functions were evaluated by means of efflux and uptake assays using 7-ethyl-10-hydroxycamptothecin (SN-38) and rhodamine123 (Rho123) as specific substrates, respectively, in non-small cell lung cancer HCC827 cells, intestinal cancer Caco-2 cells and renal cancer Caki-1 cells.
Key findings
In HCC827 cells, the efflux rates of SN-38 and Rho123 were significantly decreased by knockdown of Ezr or Msn, but not Rdx. However, BCRP function was unaffected by Ezr or Rdx knockdown in Caco-2 cells, which do not express Msn. In Caki-1 cells, Rdx knockdown increased the intracellular SN-38 concentration, while knockdown of Ezr or Msn had no effect.
Conclusions
Our findings indicate that regulation of BCRP and P-gp functions by ERM proteins is organ-specific. Thus, if the appropriate ERM protein(s) are functionally suppressed, accumulation of BCRP or P-gp substrates in lung, intestine or kidney cancer tissue might be specifically increased.
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Affiliation(s)
- Kentaro Yano
- Laboratory of Biopharmaceutics, Department of Pharmacology, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan
| | - Chiaki Okabe
- Laboratory of Biopharmaceutics, Department of Pharmacology, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan
| | - Kenta Fujii
- Laboratory of Biopharmaceutics, Department of Pharmacology, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan
| | - Yuko Kato
- Laboratory of Biopharmaceutics, Department of Pharmacology, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan
| | - Takuo Ogihara
- Laboratory of Clinical Pharmacokinetics, Graduate School of Pharmaceutical Sciences, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan
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Changes in Radixin Expression and Interaction with Efflux Transporters in the Liver of Adjuvant-Induced Arthritic Rats. Inflammation 2019; 43:85-94. [PMID: 31654296 DOI: 10.1007/s10753-019-01097-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Scaffold proteins such as radixin help to modulate the plasma membrane localization and transport activity of the multidrug resistance-associated protein 2 (MRP2/ABCC2) and P-glycoprotein (P-gp/ABCB1) efflux transporters in the liver. We examined changes in radixin expression and interaction with efflux transporters in adjuvant-induced arthritic (AA) rats, an animal model of rheumatoid arthritis, as well as in human liver cancer (HepG2) cells because inflammation affects drug pharmacokinetics via the efflux transporters. The expression levels of radixin and phosphorylated radixin (p-radixin) were measured 24 h after treatment with inflammatory cytokines comprising tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 or sodium nitroprusside (SNP; a nitric oxide donor). The protein levels of radixin, MRP2, and P-gp in the rat liver were next examined. We also investigated whether inflammation affected the formation of complexes between radixin and MRP2 or P-gp. The mRNA and protein levels of radixin in HepG2 cells were significantly decreased by TNF-α treatment, while minimal changes were observed after treatment with IL-1β, IL-6 or SNP. TNF-α also significantly decreased the protein levels of p-radixin, suggesting that TNF-α inhibited the activation of radixin and thereby reduced the activity of the efflux transporters. Complex formation of radixin with MRP2 and P-gp was significantly decreased in AA rats but this was reversed by prednisolone and dexamethasone treatment, indicating that decreased interactions of radixin with MRP2 and P-gp likely occur during liver inflammation. These data suggest that liver inflammation reduces radixin function by decreasing its interactions with MRP2 and P-gp.
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Guo Z, Yan M, Chen L, Fang P, Li Z, Wan Z, Cao S, Hou Z, Wei S, Li W, Zhang B. Nrf2-dependent antioxidant response mediated the protective effect of tanshinone IIA on doxorubicin-induced cardiotoxicity. Exp Ther Med 2018; 16:3333-3344. [PMID: 30233680 PMCID: PMC6143869 DOI: 10.3892/etm.2018.6614] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 06/22/2018] [Indexed: 12/21/2022] Open
Abstract
Doxorubicin (DOX), a potent and widely used anticancer agent, can give rise to severe cardiotoxicity that limits its clinical use by inducing oxidative stress. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) is the central regulator of cellular responses to electrophilic/oxidative stress, which serves a critical role in maintenance of normal cardiac function. Tanshinone IIA (Tan IIA) has previously been reported to protect against DOX-induced cardiotoxicity. The aim of the present study was to elucidate whether Nrf2 signaling serves a role in the underlying mechanism. In the animal model, DOX induced acute cardiotoxicity, whereas Tan IIA pretreatment reduced the activity of myocardial enzymes, and increased activity of the antioxidant enzymes superoxide dismutase, catalase and glutathione (GSH). Furthermore, Tan IIA pretreatment (3-10 µM) significantly increased the cell viability and markedly restored morphological changes in DOX-injured H9c2 cells, decreased the generation of reactive oxygen species, and increased the level of intracellular GSH. Additionally, Tan IIA pretreatment also induced the nuclear accumulation of Nrf2 and its downstream genes heme oxygenase-1, NAD(P)H dehydrogenase (quinone) 1, and glutamate-cysteine ligase catalytic subunit in both the mice cardiac tissues and H9c2 cells. Nrf2 knockdown by small interfering RNA downregulated Tan IIA-induced Nrf2 activation and reversed the effect of Tan IIA on the DOX-induced inhibition of cell viability. These results suggest that the Nrf2-dependent antioxidant response mediates the protective effect of Tan IIA on DOX-induced cardiotoxicity.
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Affiliation(s)
- Zhaohui Guo
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Department of Pharmacy, Wuhan Fourth Hospital (Puai Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
| | - Miao Yan
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
| | - Lei Chen
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
| | - Pingfei Fang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
| | - Zhihua Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
| | - Zimeng Wan
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
| | - Sisi Cao
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
| | - Zhenyan Hou
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
| | - Shanshan Wei
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
| | - Wenqun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
| | - Bikui Zhang
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
- Institute of Clinical Pharmacy, Central South University, Changsha, Hunan 410011, P.R. China
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P.R. China
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Kawase A, Tateishi S, Kazaoka A. Profiling of hepatic metabolizing enzymes and nuclear receptors in rats with adjuvant arthritis by targeted proteomics. Biopharm Drug Dispos 2018; 39:308-314. [DOI: 10.1002/bdd.2147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Atsushi Kawase
- Department of Pharmacy, Faculty of Pharmacy; Kindai University; 3-4-1 Kowakae, Higashi-osaka Osaka 577-8502 Japan
| | - Shunsuke Tateishi
- Department of Pharmacy, Faculty of Pharmacy; Kindai University; 3-4-1 Kowakae, Higashi-osaka Osaka 577-8502 Japan
| | - Akira Kazaoka
- Department of Pharmacy, Faculty of Pharmacy; Kindai University; 3-4-1 Kowakae, Higashi-osaka Osaka 577-8502 Japan
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Wu S, Fu L. Tyrosine kinase inhibitors enhanced the efficacy of conventional chemotherapeutic agent in multidrug resistant cancer cells. Mol Cancer 2018; 17:25. [PMID: 29455646 PMCID: PMC5817862 DOI: 10.1186/s12943-018-0775-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/01/2018] [Indexed: 01/24/2023] Open
Abstract
Multidrug resistance (MDR) triggered by ATP binding cassette (ABC) transporter such as ABCB1, ABCC1, ABCG2 limited successful cancer chemotherapy. Unfortunately, no commercial available MDR modulator approved by FDA was used in clinic. Tyrosine kinase inhibitors (TKIs) have been administrated to fight against cancer for decades. Almost TKI was used alone in clinic. However, drug combinations acting synergistically to kill cancer cells have become increasingly important in cancer chemotherapy as an approach for the recurrent resistant disease. Here, we summarize the effect of TKIs on enhancing the efficacy of conventional chemotherapeutic drug in ABC transporter-mediated MDR cancer cells, which encourage to further discuss and study in clinic.
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Affiliation(s)
- Shaocong Wu
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Cancer Center, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Liwu Fu
- State Key Laboratory of Oncology in South China, Guangdong Esophageal Cancer Institute; Cancer Center, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
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Kimura Y, Shibata M, Tamada M, Ozaki N, Arai K. Pharmacokinetics of Morphine in Rats with Adjuvant-induced Arthritis. ACTA ACUST UNITED AC 2017; 31:811-817. [PMID: 28882946 DOI: 10.21873/invivo.11134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 07/11/2017] [Accepted: 07/12/2017] [Indexed: 01/25/2023]
Abstract
We investigated the in vivo dynamics and analgesic effect of morphine using an adjuvant-induced arthritis (AA) rat as a model of chronic inflammation. Morphine generally binds to μ-opioid receptors in the brain to exert its effects. After several minutes, it is metabolized by glucuronidation via a UDP-glucuronosyltransferase (UGT). Here, we showed that in AA rats, UGT activity in liver microsomes was reduced. Morphine-free serum fractions in AA rats were also decreased (control, 84.9%; AA, 63.9%) and the expression of ATP-binding cassette, sub-family B (MDR/TAP), member 1 (ABCB1), which plays a crucial role in morphine bile excretion, decreased to 23.0% that of the control group. However, we observed no significant difference between the AA and control groups regarding blood concentrations of morphine and morphine-3-glucuronide. In contrast, the analgesic effect of morphine increased 4-fold in AA rats. Our results showed that the pharmacokinetics of morphine is not changed, but the pharmacodynamics of morphine is enhanced in chronic inflammation.
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Affiliation(s)
- Yoshiaki Kimura
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan.,Suisen Pharmacy, Fukui Pharmaceutical Association, Eiheiji, Japan
| | - Mika Shibata
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Mika Tamada
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Noriyuki Ozaki
- Department of Functional Anatomy, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kunizo Arai
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kanazawa, Japan
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García-Gómez MC, de Lama E, Ordoñez-Palau S, Nolla JM, Corbella E, Pintó X. High prevalence of gallstone disease in rheumatoid arthritis: A new comorbidity related to dyslipidemia? ACTA ACUST UNITED AC 2017; 15:84-89. [PMID: 28778575 DOI: 10.1016/j.reuma.2017.06.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 04/12/2017] [Accepted: 06/21/2017] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To assess the prevalence of gallstone disease and identify associated risk factors in rheumatoid arthritis (RA) patients compared to the general population. METHODS Eighty-four women with rheumatoid arthritis were included in the study. Each patient was assessed via a structured interview, physical examination, abdominal ultrasound and blood test including lipid profile. The prevalence of gallstone disease in rheumatoid arthritis was compared with data from a study of the Spanish population matched by age groups. RESULTS Twenty-eight of the 84 women had gallstone disease (33.3%). RA women with and without gallstone disease were similar in most of the variables assessed, except for older age and menopausal status in the former. A greater prevalence of gallstone disease was seen in rheumatoid arthritis patients compared to the general population of the same age; however, the differences were significant only in women aged 60 or older (45.5% versus 23.1% respectively, P-value .008). The age-adjusted OR of developing gallstone disease in RA women compared with general population women was 2,3 (95% CI: 1.3-4.1). A significantly higher HDL3-c subfraction and higher apoA-I/HDL and HDL3-c/TC ratios were observed in patients with gallstone disease. CONCLUSION Women with rheumatoid arthritis may have a predisposition to gallstones that can manifest in middle or older age compared with women in the general population. This situation could be related to chronic inflammation and HDL metabolism.
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Affiliation(s)
| | - Eugenia de Lama
- Department of Radiology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Sergi Ordoñez-Palau
- Unit of Rheumatology, Department of Internal Medicine, Hospital Arnau de Vilanova, Lleida, Spain
| | - Joan Miquel Nolla
- Department of Rheumatology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Emili Corbella
- Lipid Unit, Department of Internal Medicine, Fipec, Idibell, CiberObn, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Xavier Pintó
- Lipid Unit, Department of Internal Medicine, Fipec, Idibell, CiberObn, Universitat de Barcelona, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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Uraki M, Kawase A, Sayama H, Matsushima Y, Iwaki M. Effects of Adjuvant-Induced Inflammation on Disposition of Diclofenac and Its Metabolites in Perfused Rat Liver. J Pharm Sci 2017; 106:1175-1182. [DOI: 10.1016/j.xphs.2016.12.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 12/01/2016] [Accepted: 12/21/2016] [Indexed: 10/20/2022]
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