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Qian Z, Lin W, Cai X, Wu J, Ke K, Ye Z, Wu F. WYC-209 inhibited GC malignant progression by down-regulating WNT4 through RARα. Cancer Biol Ther 2024; 25:2299288. [PMID: 38178596 PMCID: PMC10773637 DOI: 10.1080/15384047.2023.2299288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024] Open
Abstract
Gastric cancer (GC) has been a major health burden all over the world but there are fewer promising chemotherapeutic drugs due to its multidrug resistance. It has been reported that WYC-209 suppresses the growth and metastasis of tumor-repopulating cells but the effect on GC was not explored. MTT, colony formation, and transwell assays were performed to examine the effects of WYC-209 on the proliferation, colony growth, and mobility of GC cells. Western blotting and qRT-PCR were used to detect the expression of proteins and mRNA. RNA-seq and enrichment analyses were conducted for the differentially expressed genes and enriched biological processes and pathways. The rescue experiments were carried out for further validation. Besides, we constructed xenograft model to confirm the effect of WYC-209 in vivo. The dual-luciferase reporter and Chromatin immunoprecipitation were implemented to confirm the underlying mechanism. WYC-209 exerted excellent anti-cancer effects both in vitro and in vivo. Based on RNA-seq and enrichment analyses, we found that Wnt family member 4 (WNT4) was significantly down-regulated. More importantly, WNT4 overexpression breached the inhibitory effect of WYC-209 on GC progression. Mechanically, WYC-209 significantly promoted the binding between retinoic acid receptor α (RARα) and WNT4 promoter. WYC-209 exerts anti-tumor effects in GC by down-regulating the expression of WNT4 via RARα.
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Affiliation(s)
- Zhenyuan Qian
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Wenfa Lin
- School of Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Xufan Cai
- School of Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jianzhang Wu
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Kun Ke
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Zaiyuan Ye
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Fang Wu
- General Surgery, Cancer Center, Department of Gastrointestinal and Pancreatic Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
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Bai Y, Ning N, Zhao J, Chen G, Du Y, Huang S, Jiang X, Feng X, Feng Y, Nan Y, Yuan L. Explore the mechanism of Astragalus membranaceus and Poria cocos drug pair in improving immunity based on network pharmacology. Medicine (Baltimore) 2024; 103:e38531. [PMID: 38905394 PMCID: PMC11191921 DOI: 10.1097/md.0000000000038531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/17/2024] [Indexed: 06/23/2024] Open
Abstract
The aim of this study was to investigate the key targets and molecular mechanisms of the drug pair Astragalus membranaceus and Poria cocos (HFDP) in the treatment of immunity. We utilized network pharmacology, molecular docking, and immune infiltration techniques in conjunction with data from the GEO database. Previous clinical studies have shown that HFDP has a positive impact on immune function. We first identified the active ingredients and targets of HFDP from the Traditional Chinese Medicine Systems Pharmacology database and the Swiss Target Prediction database, respectively. Next, we retrieved the differentially expressed genes (DEGs) related to immunity from the GEO databases. The intersection targets of the drugs and diseases were then analyzed using the STRING database for protein-protein interaction (PPI) network analysis, and the core targets were determined through topological analysis. Finally, the intersection genes were further analyzed using the DAVID database for Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes analyses. Subsequently, by analyzing the expression and prognostic survival of 12 core targets, 5 core target genes were identified, and molecular docking between the hub genes and immunity was performed. Finally, we used the CIBERSORT algorithm to analyze the immune infiltration of immunity genes In this study, 34 effective ingredients of HFDP, 530 target genes, and 568 differential genes were identified. GO and KEGG analysis showed that the intersection genes of HFDP targets and immunity-related genes were mainly related to complement and coagulation cascades, cytokine receptors, and retinol metabolism pathways. The molecular docking results showed that the 5 core genes had obvious affinity for the active ingredients of HFDP, which could be used as potential targets to improve the immunity of HFDP. Our findings suggest that HFDP is characterized by "multiple components, multiple targets, and multiple pathways" in regulating immunity. It may play an essential role in regulating immunity by regulating the expression and polymorphism of the central target genes ESR1, JUN, CYP3A4, CYP2C9, and SERPINE1.
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Affiliation(s)
- Yuting Bai
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
- Ningxia Chinese Medicine Research Center, Yinchuan, China
| | - Na Ning
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Jianjun Zhao
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Guoqing Chen
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Yuhua Du
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Shicong Huang
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Xilong Jiang
- Ningxia Chinese Medicine Research Center, Yinchuan, China
| | - Xuelan Feng
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Yuanyuan Feng
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
| | - Yi Nan
- Key Laboratory of Hui Ethnic Medicine Modernization of Ministry of Education, Ningxia Medical University, Yinchuan, China
| | - Ling Yuan
- College of Pharmacy, Ningxia Medical University, Yinchuan, China
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Kim MJ, Kulkarni V, Goode MA, Sivesind TE. Exploring the interactions of antihistamine with retinoic acid receptor beta (RARB) by molecular dynamics simulations and genome-wide meta-analysis. J Mol Graph Model 2023; 124:108539. [PMID: 37331258 PMCID: PMC10529808 DOI: 10.1016/j.jmgm.2023.108539] [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: 02/23/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/20/2023]
Abstract
Kaposi sarcoma (KS) is one of the most common AIDS-related malignant neoplasms, which can leave lesions on the skin among HIV patients. These lesions can be treated with 9-cis-retinoic acid (9-cis-RA), an endogenous ligand of retinoic acid receptors that has been FDA-approved for treatment of KS. However, topical application of 9-cis-RA can induce several unpleasant side effects, like headache, hyperlipidemia, and nausea. Hence, alternative therapeutics with less side effects are desirable. There are case reports associating over-the-counter antihistamine usage with regression of KS. Antihistamines competitively bind to H1 receptor and block the action of histamine, best known for being released in response to allergens. Furthermore, there are already dozens of antihistamines that are FDA-approved with less side effects than 9-cis-RA. This led our team to conduct a series of in-silico assays to determine whether antihistamines can activate retinoic acid receptors. First, we utilized high-throughput virtual screening and molecular dynamics simulations to model high-affinity interactions between antihistamines and retinoic acid receptor beta (RARβ). We then performed systems genetics analysis to identify a genetic association between H1 receptor itself and molecular pathways involved in KS. Together, these findings advocate for exploration of antihistamines against KS, starting with our two promising hit compounds, bepotastine and hydroxyzine, for experimental validation study in the future.
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Affiliation(s)
- Minjae J Kim
- University of Tennessee Health Sciences Center School of Medicine, Memphis, TN, USA.
| | | | - Micah A Goode
- University of Tennessee Health Sciences Center School of Medicine, Memphis, TN, USA.
| | - Torunn E Sivesind
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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Määttä A, Nixon R, Robinson N, Ambler CA, Goncalves K, Maltman V, Przyborski S. Regulation of epidermal proliferation and hair follicle cycling by synthetic photostable retinoid EC23. J Cosmet Dermatol 2023; 22:1658-1669. [PMID: 36718827 DOI: 10.1111/jocd.15629] [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: 10/06/2022] [Revised: 12/22/2022] [Accepted: 01/03/2023] [Indexed: 02/01/2023]
Abstract
BACKGROUND Retinoid signaling is an important regulator of the epidermis and skin appendages. Therefore, synthetic retinoids have been developed for therapeutic use for skin disorders such as psoriasis and acne. AIMS In previous studies, we showed how the photostable retinoid EC23 induces neuronal differentiation in stem cell-like cell populations, and here, we aim to investigate its ability to influence epidermal and hair follicle growth. METHODS EC23 influence on skin biology was investigated initially in cultures of monolayer keratinocytes and three-dimentional in vitro models of skin, and finally in in vivo studies of mice back skin. RESULTS EC23 induces keratinocyte hyperproliferation in vitro and in vivo, and when applied to mouse skin increases the number of involucrin-positive suprabasal cell layers. These phenotypic changes are similar in skin treated with the natural retinoid all-trans retinoic acid (ATRA); however, EC23 is more potent; a tenfold lower dose of EC23 is sufficient to induce epidermal thickening, and resulting hyperproliferation is sustained for a longer time period after first dose. EC23 treatment resulted in a disorganized stratum corneum, reduced cell surface lipids and compromised barrier, similar to ATRA treatment. However, EC23 induces a rapid telogen to anagen transition and hair re-growth in 6-week-old mice with synchronously resting back skin follicles. The impact of EC23 on the hair cycle was surprising as similar results have not been seen with ATRA. CONCLUSIONS These data suggest that synthetic retinoid EC23 is a useful tool in exploring the turnover and differentiation of cells and has a potent effect on skin physiology.
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Affiliation(s)
- Arto Määttä
- Department of Biosciences, Durham University, Durham, UK
| | - Rebecca Nixon
- Department of Biosciences, Durham University, Durham, UK
| | - Neil Robinson
- Department of Biosciences, Durham University, Durham, UK
| | | | | | | | - Stefan Przyborski
- Department of Biosciences, Durham University, Durham, UK.,Reprocell Europe Ltd, West of Scotland Science Park, Glasgow, UK
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Wang R, Yue X, Zhu J, Hu R, Li Y, Yang Y, Liu M. Mutation of two residues converts the ligand-binding domain of RXRα into a uniform monomer without impairing the binding of retinoic acid and cofactors. Biochem Biophys Res Commun 2023; 642:50-56. [PMID: 36563628 DOI: 10.1016/j.bbrc.2022.12.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Retinoid X receptor (RXRα) is a nuclear receptor (NR) for retinoic acid (RA) and regulates various NR signaling pathways. Ligand-binding domain (LBD) of RXRα can bind with its ligand 9-cis-RA and cofactors, and mediate the forming of homodimer and homotetramer of RXRα and its heterodimer with other NRs, conferring RXRα the ability to play complicated roles in development and diseases. Due to the coexistence of monomer, dimer and tetramer, there are difficulties to study the structure and interaction of RXRα-LBD with its ligands and cofactors in solution and to distinguish the roles of different forms of RXRα in cell. Here, through analyzing available structures of RXRα-LBD, we selected two residues, D379 and L420, in the homodimer interface to design three mutants of RXRα-LBD. Recombinant proteins of the three mutants showed decreased proportions of dimer and tetramer but unchanged overall structure and binding affinities to 9-cis-RA, corepressor SMRT, and coactivator SRC2. Especially, the double-site mutant RXRα-LBDD379A-L420G existed as a uniform monomer. Furthermore, L420 was found to play a similar role in forming RXRα-LBD homodimer and its heterodimer with various NRs, while the role of D379 varies a lot, as it shows almost no interaction with RARα/β, LXRα/β, and THRα/β. This study provides a new insight into the mechanism for forming RXRα-LBD homodimer and its heterodimer with other NRs, and will facilitate the studies on the structure and interaction of RXRα-LBD with ligands, cofactors and drugs in solution, and the broad physiological functions of RXRα cooperating with various NRs in cell.
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Affiliation(s)
- Ru Wang
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan, 430070, China; State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China
| | - Xiali Yue
- Department of Chemistry, College of Science, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Jiang Zhu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Rui Hu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ying Li
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunhuang Yang
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, National Center for Magnetic Resonance in Wuhan, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences - Wuhan National Laboratory for Optoelectronics, Wuhan, 430071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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Jayaprakash S, Hegde M, Girisa S, Alqahtani MS, Abbas M, Lee EHC, Yap KCH, Sethi G, Kumar AP, Kunnumakkara AB. Demystifying the Functional Role of Nuclear Receptors in Esophageal Cancer. Int J Mol Sci 2022; 23:ijms231810952. [PMID: 36142861 PMCID: PMC9501100 DOI: 10.3390/ijms231810952] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Esophageal cancer (EC), an aggressive and poorly understood disease, is one of the top causes of cancer-related fatalities. GLOBOCAN 2020 reports that there are 544,076 deaths and 604,100 new cases expected worldwide. Even though there are various advancements in treatment procedures, this cancer has been reported as one of the most difficult cancers to cure, and to increase patient survival; treatment targets still need to be established. Nuclear receptors (NRs) are a type of transcription factor, which has a key role in several biological processes such as reproduction, development, cellular differentiation, stress response, immunity, metabolism, lipids, and drugs, and are essential regulators of several diseases, including cancer. Numerous studies have demonstrated the importance of NRs in tumor immunology and proved the well-known roles of multiple NRs in modulating proliferation, differentiation, and apoptosis. There are surplus of studies conducted on NRs and their implications in EC, but only a few studies have demonstrated the diagnostic and prognostic potential of NRs. Therefore, there is still a paucity of the role of NRs and different ways to target them in EC cells to stop them from spreading malignancy. This review emphasizes the significance of NRs in EC by discussing their diverse agonists as well as antagonists and their response to tumor progression. Additionally, we emphasize NRs’ potential to serve as a novel therapeutic target and their capacity to treat and prevent EC.
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Affiliation(s)
- Sujitha Jayaprakash
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Guwahati, Guwahati 781039, Assam, India
| | - Mangala Hegde
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Guwahati, Guwahati 781039, Assam, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Guwahati, Guwahati 781039, Assam, India
| | - Mohammed S. Alqahtani
- Radiological Sciences Department, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia
- BioImaging Unit, Space Research Centre, Michael Atiyah Building, University of Leicester, Leicester LE1 7RH, UK
| | - Mohamed Abbas
- Electrical Engineering Department, College of Engineering, King Khalid University, Abha 61421, Saudi Arabia
- Electronics and Communications Department, College of Engineering, Delta University for Science and Technology, Gamasa 35712, Egypt
| | - E. Hui Clarissa Lee
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Kenneth Chun-Hong Yap
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore
- NUS Center for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Correspondence: (A.P.K.); (A.B.K.)
| | - Ajaikumar B. Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology (IIT) Guwahati, Guwahati 781039, Assam, India
- Correspondence: (A.P.K.); (A.B.K.)
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Abdelaal MR, Haffez H. The potential roles of retinoids in combating drug resistance in cancer: implications of ATP-binding cassette (ABC) transporters. Open Biol 2022; 12:220001. [PMID: 35642494 PMCID: PMC9157304 DOI: 10.1098/rsob.220001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Multidrug resistance (MDR) means that tumour cells become unresponsive during or after the course of treatment to one or more of chemotherapeutic drugs. Chemotherapeutic resistance critically limits the treatment outcomes and remains a key challenge for clinicians. The alternation in intracellular drug concentration through the modulation of its transport across the plasma membrane is the major cause for MDR and is adopted by various mediators, including ATP-requiring enzymes (ATPases). Among these ATPases, ABC transporters have been extensively studied, and found to be highly implicated in tumorigenesis and MDR. The present review sheds light on the documented effects of retinoids on ABC enzymes to understand their mechanism in combating cancer cell resistance. This would open the gate to test the mechanism and applicability of different new synthetic retinoids in literature and market as modulators of ATP-dependent efflux pumping activity, and promote their applicability in diminishing anti-cancer drug resistance.
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Affiliation(s)
- Mohamed R. Abdelaal
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt,Centre of Scientific Excellence ‘Helwan Structural Biology Research (HSBR)’, Helwan University, Cairo 11795, Egypt
| | - Hesham Haffez
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt,Centre of Scientific Excellence ‘Helwan Structural Biology Research (HSBR)’, Helwan University, Cairo 11795, Egypt
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8
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The Role of ATRA, Natural Ligand of Retinoic Acid Receptors, on EMT-Related Proteins in Breast Cancer: Minireview. Int J Mol Sci 2021; 22:ijms222413345. [PMID: 34948142 PMCID: PMC8705994 DOI: 10.3390/ijms222413345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022] Open
Abstract
The knowledge of the structure, function, and abundance of specific proteins related to the EMT process is essential for developing effective diagnostic approaches to cancer with the perspective of diagnosis and therapy of malignancies. The success of all-trans retinoic acid (ATRA) differentiation therapy in acute promyelocytic leukemia has stimulated studies in the treatment of other tumors with ATRA. This review will discuss the impact of ATRA use, emphasizing epithelial-mesenchymal transition (EMT) proteins in breast cancer, of which metastasis and recurrence are major causes of death.
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Sakai H, Yamada Y, Kubota M, Imai K, Shirakami Y, Tomita H, Hara A, Shimizu M. The phosphorylated retinoid X receptor-α promotes diethylnitrosamine-induced hepatocarcinogenesis in mice through the activation of β-catenin signaling pathway. Carcinogenesis 2021; 43:254-263. [PMID: 34668523 PMCID: PMC9036992 DOI: 10.1093/carcin/bgab099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/05/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Previous studies have shown that phosphorylation of the retinoid X receptor-α (RXRα) is associated with the development of hepatocellular carcinoma (HCC). However, these findings were revealed using HCC cell lines that express phosphorylated-RXRα (p-RXRα) proteins; therefore, it remains unclear whether p-RXRα affects hepatocarcinogenesis in vivo. Therefore, to investigate the biological function of p-RXRα in vivo, we developed a doxycycline-inducible ES cell line and transgenic mouse, both of which overexpress the phosphomimetic mutant form of RXRα, T82D/S260D, in a doxycycline-dependent manner. We found that the development of liver tumors, especially high-grade adenoma and HCC, was enhanced in diethylnitrosamine (DEN)-induced T82D/S260D-inducible mice. Moreover, the increased incidence of liver tumors in the transgenic mice was attributable to the promotion of cell cycle progression. Interestingly, the expression of β-catenin protein and its target gene cyclin D1 was elevated in the liver tumors of DEN-treated T82D/S260D-inducible mice, concurrent with increased cytoplasmic and nuclear β-catenin protein expression, indicating its stabilization and transcriptional activation. These results indicate that p-RXRα promotes DEN-induced hepatocarcinogenesis in mice through the activation of the β-catenin signaling pathway, suggesting that p-RXRα may serve as a possible therapeutic target for HCC.
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Affiliation(s)
- Hiroyasu Sakai
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yasuhiro Yamada
- Division of Stem Cell Pathology, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Masaya Kubota
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Kenji Imai
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yohei Shirakami
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Hiroyuki Tomita
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Akira Hara
- Department of Tumor Pathology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Masahito Shimizu
- Department of Gastroenterology, Gifu University Graduate School of Medicine, Gifu, Japan
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An Updated Comprehensive Review on Vitamin A and Carotenoids in Breast Cancer: Mechanisms, Genetics, Assessment, Current Evidence, and Future Clinical Implications. Nutrients 2021; 13:nu13093162. [PMID: 34579037 PMCID: PMC8465379 DOI: 10.3390/nu13093162] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/28/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022] Open
Abstract
Vitamin A and carotenoids are fat-soluble micronutrients that play important role as powerful antioxidants modulating oxidative stress and cancer development. Breast cancer is the most common malignancy in women. As the risk of breast cancer is dependent on various lifestyle factors such as dietary modifications, there is increasing interest surrounding the anti-cancerous properties of vitamin A and carotenoids. Despite the suggested protective roles of vitamin A and carotenoids in breast cancer development, their clinical application for the prevention and treatment of breast cancer is limited. In this narrative review, we discuss the roles of vitamin A and carotenoids along with the evaluation method of vitamin A status. We also exhibit the association of genetic variations involved in metabolism of vitamin A and carotenoids with cancers and other diseases. We demonstrate the epidemiological evidence for the relationship of vitamin A and carotenoids with breast cancer risk, their effects on cancer mechanism, and the recent updates in clinical practice of vitamin A or carotenoids as a potential therapeutic agent against breast cancer. This review provides insight into the preventive and therapeutic roles of vitamin A and carotenoids in breast cancer development and progression.
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11
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Qiu L, Ma Y, Chen X, Zhou L, Zhang H, Zhong G, Zhang L, Tang J. Heparin-binding growth factor (HDGF) drives radioresistance in breast cancer by activating the STAT3 signaling pathway. J Transl Med 2021; 19:344. [PMID: 34376200 PMCID: PMC8353798 DOI: 10.1186/s12967-021-03021-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/03/2021] [Indexed: 12/12/2022] Open
Abstract
Although reports implicate radioresistance as an important obstacle for the management of breast cancer, its molecular mechanism is elusive. Herein, we found that high HDGF levels are expressed significantly in breast cancer and exhibit a positive association with poor survival prognosis. Heparin-binding growth factor (HDGF) was upregulated in radioresistant breast cancer cells, however, its knockdown could reduce breast cancer radioresistant both in vitro and in vivo. Additionally, the binding of RXRα to HDGF promoter blocked HDGF transcriptional activity, consequently inhibiting breast cancer radioresistance. The enhanced radioresistant activity of HDGF is induced by TKT and STAT3, impacting the STAT3-Tyr705 and STAT3-Ser727 phosphorylation and STAT3 transcriptional activity. Notably, HDGF depletion renders radioresistant hypersensitive to the drug that targets STAT3 phosphorylation. This article demonstrates the novel function of HDGF as a promising molecular target for predicting radioresistance in breast cancer.
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Affiliation(s)
- Lingyun Qiu
- Oncology Center, Department of Radiation Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Yan Ma
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Xiaohua Chen
- Department of Radiation Oncology, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Liheng Zhou
- Department of Breast Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China
| | - Haibo Zhang
- Oncology Center, Department of Radiation Oncology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Guansheng Zhong
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, People's Republic of China
| | - Lei Zhang
- Department of Radiation Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China.
| | - Jianming Tang
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.
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12
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Abdelwahab EMM, Bovari-Biri J, Smuk G, Harko T, Fillinger J, Moldvay J, Krymskaya VP, Pongracz JE. Normalization of Enzyme Expression and Activity Regulating Vitamin A Metabolism Increases RAR-Beta Expression and Reduces Cellular Migration and Proliferation in Diseases Caused by Tuberous Sclerosis Gene Mutations. Front Oncol 2021; 11:644592. [PMID: 34178631 PMCID: PMC8226169 DOI: 10.3389/fonc.2021.644592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/25/2021] [Indexed: 11/15/2022] Open
Abstract
Background Mutation in a tuberous sclerosis gene (TSC1 or 2) leads to continuous activation of the mammalian target of rapamycin (mTOR). mTOR activation alters cellular including vitamin A metabolism and retinoic acid receptor beta (RARβ) expression. The goal of the present study was to investigate the molecular connection between vitamin A metabolism and TSC mutation. We also aimed to investigate the effect of the FDA approved drug rapamycin and the vitamin A metabolite retinoic acid (RA) in cell lines with TSC mutation. Methods Expression and activity of vitamin A associated metabolic enzymes and RARβ were assessed in human kidney angiomyolipoma derived cell lines, primary lymphangioleiomyomatosis (LAM) tissue derived LAM cell lines. RARβ protein levels were also tested in primary LAM lung tissue sections. TaqMan arrays, enzyme activities, qRT-PCRs, immunohistochemistry, immunofluorescent staining, and western blotting were performed and analysed. The functional effects of retinoic acid (RA) and rapamycin were tested in a scratch and a BrDU assay to assess cell migration and proliferation. Results Metabolic enzyme arrays revealed a general deregulation of many enzymes involved in vitamin A metabolism including aldehyde dehydrogenases (ALDHs), alcohol dehydrogenases (ADHs) and Cytochrome P450 2E1 (CYP2E1). Furthermore, RARβ downregulation was a characteristic feature of all TSC-deficient cell lines and primary tissues. Combination of the two FDA approved drugs -RA for acute myeloid leukaemia and rapamycin for TSC mutation- normalised ALDH and ADH expression and activity, restored RARβ expression and reduced cellular proliferation and migration. Conclusion Deregulation of vitamin A metabolizing enzymes is a feature of TSC mutation. RA can normalize RARβ levels and limit cell migration but does not have a significant effect on proliferation. Based on our data, translational studies could confirm whether combination of RA with reduced dosage of rapamycin would have more beneficial effects to higher dosage of rapamycin monotherapy meanwhile reducing adverse effects of rapamycin for patients with TSC mutation.
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Affiliation(s)
| | - Judit Bovari-Biri
- Departments of Pharmaceutical Biotechnology, University of Pecs, Pecs, Hungary.,Szentagothai Research Centre, University of Pecs, Pecs, Hungary
| | - Gabor Smuk
- Department of Pathology, University of Pecs, Pecs, Hungary
| | - Tunde Harko
- Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Janos Fillinger
- Department of Pathology, Semmelweis University, Budapest, Hungary.,Department of Pulmonology, National Koranyi Institute of Pulmonology, Budapest, Hungary
| | - Judit Moldvay
- Department of Pathology, Semmelweis University, Budapest, Hungary.,Department of Pulmonology, National Koranyi Institute of Pulmonology, Budapest, Hungary
| | - Vera P Krymskaya
- Pulmonary, Allergy and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Judit E Pongracz
- Departments of Pharmaceutical Biotechnology, University of Pecs, Pecs, Hungary.,Szentagothai Research Centre, University of Pecs, Pecs, Hungary
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13
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Exploring the Metabolic Heterogeneity of Cancers: A Benchmark Study of Context-Specific Models. J Pers Med 2021; 11:jpm11060496. [PMID: 34205912 PMCID: PMC8229374 DOI: 10.3390/jpm11060496] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 12/18/2022] Open
Abstract
Metabolic heterogeneity is a hallmark of cancer and can distinguish a normal phenotype from a cancer phenotype. In the systems biology domain, context-specific models facilitate extracting physiologically relevant information from high-quality data. Here, to utilize the heterogeneity of metabolic patterns to discover biomarkers of all cancers, we benchmarked thousands of context-specific models using well-established algorithms for the integration of omics data into the generic human metabolic model Recon3D. By analyzing the active reactions capable of carrying flux and their magnitude through flux balance analysis, we proved that the metabolic pattern of each cancer is unique and could act as a cancer metabolic fingerprint. Subsequently, we searched for proper feature selection methods to cluster the flux states characterizing each cancer. We employed PCA-based dimensionality reduction and a random forest learning algorithm to reveal reactions containing the most relevant information in order to effectively identify the most influential fluxes. Conclusively, we discovered different pathways that are probably the main sources for metabolic heterogeneity in cancers. We designed the GEMbench website to interactively present the data, methods, and analysis results.
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14
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Abstract
Dietary intake and tissue levels of carotenoids have been associated with a reduced risk of several chronic diseases, including cardiovascular diseases, type 2 diabetes, obesity, brain-related diseases and some types of cancer. However, intervention trials with isolated carotenoid supplements have mostly failed to confirm the postulated health benefits. It has thereby been speculated that dosing, matrix and synergistic effects, as well as underlying health and the individual nutritional status plus genetic background do play a role. It appears that our knowledge on carotenoid-mediated health benefits may still be incomplete, as the underlying mechanisms of action are poorly understood in relation to human relevance. Antioxidant mechanisms - direct or via transcription factors such as NRF2 and NF-κB - and activation of nuclear hormone receptor pathways such as of RAR, RXR or also PPARs, via carotenoid metabolites, are the basic principles which we try to connect with carotenoid-transmitted health benefits as exemplified with described common diseases including obesity/diabetes and cancer. Depending on the targeted diseases, single or multiple mechanisms of actions may play a role. In this review and position paper, we try to highlight our present knowledge on carotenoid metabolism and mechanisms translatable into health benefits related to several chronic diseases.
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15
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Everts HB, Akuailou EN. Retinoids in Cutaneous Squamous Cell Carcinoma. Nutrients 2021; 13:nu13010153. [PMID: 33466372 PMCID: PMC7824907 DOI: 10.3390/nu13010153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 12/31/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023] Open
Abstract
Animal studies as early as the 1920s suggested that vitamin A deficiency leads to squamous cell metaplasia in numerous epithelial tissues including the skin. However, humans usually die from vitamin A deficiency before cancers have time to develop. A recent long-term cohort study found that high dietary vitamin A reduced the risk of cutaneous squamous cell carcinoma (cSCC). cSCC is a form of nonmelanoma skin cancer that primarily occurs from excess exposure to ultraviolet light B (UVB). These cancers are expensive to treat and can lead to metastasis and death. Oral synthetic retinoids prevent the reoccurrence of cSCC, but side effects limit their use in chemoprevention. Several proteins involved in vitamin A metabolism and signaling are altered in cSCC, which may lead to retinoid resistance. The expression of vitamin A metabolism proteins may also have prognostic value. This article reviews what is known about natural and synthetic retinoids and their metabolism in cSCC.
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16
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Koklesova L, Liskova A, Samec M, Zhai K, Abotaleb M, Ashrafizadeh M, Brockmueller A, Shakibaei M, Biringer K, Bugos O, Najafi M, Golubnitschaja O, Büsselberg D, Kubatka P. Carotenoids in Cancer Metastasis-Status Quo and Outlook. Biomolecules 2020; 10:E1653. [PMID: 33321708 PMCID: PMC7763577 DOI: 10.3390/biom10121653] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/04/2020] [Accepted: 12/06/2020] [Indexed: 12/11/2022] Open
Abstract
Metastasis represents a major obstacle in cancer treatment and the leading cause of cancer-related deaths. Therefore, the identification of compounds targeting the multi-step and complex process of metastasis could improve outcomes in the management of cancer patients. Carotenoids are naturally occurring pigments with a plethora of biological activities. Carotenoids exert a potent anti-cancer capacity in various cancer models in vitro and in vivo, mediated by the modulation of signaling pathways involved in the migration and invasion of cancer cells and metastatic progression, including key regulators of the epithelial-mesenchymal transition and regulatory molecules, such as matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs), urokinase plasminogen activator (uPA) and its receptor (uPAR), hypoxia-inducible factor-1α (HIF-1α), and others. Moreover, carotenoids modulate the expression of genes associated with cancer progression and inflammatory processes as key mediators of the complex process involved in metastasis. Nevertheless, due to the predominantly preclinical nature of the known anti-tumor effects of carotenoids, and unclear results from certain carotenoids in specific cancer types and/or specific parts of the population, a precise analysis of the anti-cancer effects of carotenoids is essential. The identification of carotenoids as effective compounds targeting the complex process of cancer progression could improve the outcomes of advanced cancer patients.
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Affiliation(s)
- Lenka Koklesova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia; (L.K.); (A.L.); (M.S.); (K.B.)
| | - Alena Liskova
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia; (L.K.); (A.L.); (M.S.); (K.B.)
| | - Marek Samec
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia; (L.K.); (A.L.); (M.S.); (K.B.)
| | - Kevin Zhai
- Department of Physiology and Biophysics, Weill Cornell Medicine in Qatar, Education City, Qatar Foundation, 24144 Doha, Qatar; (K.Z.); (M.A.)
| | - Mariam Abotaleb
- Department of Physiology and Biophysics, Weill Cornell Medicine in Qatar, Education City, Qatar Foundation, 24144 Doha, Qatar; (K.Z.); (M.A.)
| | - Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956 Istanbul, Turkey;
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956 Istanbul, Turkey
| | - Aranka Brockmueller
- Musculoskeletal Research Group and Tumor Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, D-80336 Munich, Germany; (A.B.); (M.S.)
| | - Mehdi Shakibaei
- Musculoskeletal Research Group and Tumor Biology, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilian-University Munich, D-80336 Munich, Germany; (A.B.); (M.S.)
| | - Kamil Biringer
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia; (L.K.); (A.L.); (M.S.); (K.B.)
| | | | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah 67146, Iran;
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah 67146, Iran
| | - Olga Golubnitschaja
- Predictive, Preventive, Personalised (3P) Medicine, Department of Radiation Oncology, University Hospital Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, 53127 Bonn, Germany;
| | - Dietrich Büsselberg
- Department of Physiology and Biophysics, Weill Cornell Medicine in Qatar, Education City, Qatar Foundation, 24144 Doha, Qatar; (K.Z.); (M.A.)
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 03601 Martin, Slovakia
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Chen PH, Chung CM, Wang YY, Huang HW, Huang B, Lee KW, Yuan SS, Wu CW, Lin LS, Chan LP. CYP26A1 Is a Novel Biomarker for Betel Quid-Related Oral and Pharyngeal Cancers. Diagnostics (Basel) 2020; 10:diagnostics10110982. [PMID: 33233443 PMCID: PMC7700252 DOI: 10.3390/diagnostics10110982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 12/17/2022] Open
Abstract
Betel quid (BQ) has been classified as a Group I human carcinogen in light of evidence demonstrating an association with an elevated risk of oral and pharyngeal cancers. To date, the incidence rate of oral and pharynx cancers among Taiwanese men ranks the highest worldwide. However, no study has yet confirmed variants of CYP26A1 was associated with the risks of oral and pharyngeal cancers. A case-control study was conducted (n = 339). CYP26A1 polymorphism was performed using SNP assay. Real-time qRT-PCR and Western blotting were used to determine the levels of CYP26A1 expression. The cancer cell model involved treatment with arecoline. Our findings showed that the downregulation of CYP26A1 mRNA and protein expression are more frequently observed in cancerous tissues than adjacent normal tissues in patients with oral and pharynx cancers (p < 0.01). We found that CYP26A1 was downregulated as the arecoline dose increased. We hypothesized that lower levels of CYP26A1 mRNA expression can be utilized a clinically biomarker causes oral and pharynx cancers. Arecoline appears to modulate CYP26A1 expression through specific pathways. Carriers of CYP26A1 SNP, rs2068888 (G/G)/rs4418728 (G/G) and who have lower levels of CYP26A1 expression are associated with an increased risk of oral and pharyngeal cancers.
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Affiliation(s)
- Ping-Ho Chen
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (P.-H.C.); (Y.-Y.W.)
- Institute of Biomedical Sciences, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan;
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Cohort Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Chia-Min Chung
- Center for Drug Abuse and Addiction, China Medical University Hospital, China Medical University, Taichung 406040, Taiwan;
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 406040, Taiwan
| | - Yen-Yun Wang
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (P.-H.C.); (Y.-Y.W.)
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Hurng-Wern Huang
- Institute of Biomedical Sciences, National Sun Yat-sen University, No. 70 Lienhai Road, Kaohsiung 80424, Taiwan;
| | - Bin Huang
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ka-Wo Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Ta-Tung Hospital and Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Shyng-Shiou Yuan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Che-Wei Wu
- Cohort Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Lee-Shuan Lin
- Laboratory of Veterinary Diagnostic Imaging, Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung 912301, Taiwan;
| | - Leong-Perng Chan
- Cohort Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Department of Otorhinolaryngology-Head and Neck Surgery, Kaohsiung Municipal Ta-Tung Hospital and Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: ; Tel.: +886-7-312-1101; Fax: +886-7-315-7024
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Brtko J, Dvorak Z. Natural and synthetic retinoid X receptor ligands and their role in selected nuclear receptor action. Biochimie 2020; 179:157-168. [PMID: 33011201 DOI: 10.1016/j.biochi.2020.09.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/22/2020] [Accepted: 09/30/2020] [Indexed: 02/06/2023]
Abstract
Important key players in the regulatory machinery within the cells are nuclear retinoid X receptors (RXRs), which compose heterodimers in company with several diverse nuclear receptors, playing a role as ligand inducible transcription factors. In general, nuclear receptors are ligand-activated, transcription-modulating proteins affecting transcriptional responses in target genes. RXR molecules forming permissive heterodimers with disparate nuclear receptors comprise peroxisome proliferator-activated receptors (PPARs), liver X receptors (LXRs), farnesoid X receptor (FXR), pregnane X receptor (PXR) and constitutive androstan receptor (CAR). Retinoid receptors (RARs) and thyroid hormone receptors (TRs) may form conditional heterodimers, and dihydroxyvitamin D3 receptor (VDR) is believed to form nonpermissive heterodimer. Thus, RXRs are the important molecules that are involved in control of many cellular functions in biological processes and diseases, including cancer or diabetes. This article summarizes both naturally occurring and synthetic ligands for nuclear retinoid X receptors and describes, predominantly in mammals, their role in molecular mechanisms within the cells. A focus is also on triorganotin compounds, which are high affinity RXR ligands, and finally, we present an outlook on human microbiota as a potential source of RXR activators. Nevertheless, new synthetic rexinoids with better retinoid X receptor activity and lesser side effects are highly required.
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Affiliation(s)
- Julius Brtko
- Institute of Experimental Endocrinology, Biomedical Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05, Bratislava, Slovak Republic.
| | - Zdenek Dvorak
- Department of Cell Biology and Genetics, Faculty of Science, Palacky University, Slechtitelu 11, 783 71, Olomouc, Czech Republic
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Bharti S, Vadlamudi HC. A strategic review on the involvement of receptors, transcription factors and hormones in acne pathogenesis. J Recept Signal Transduct Res 2020; 41:105-116. [PMID: 32787477 DOI: 10.1080/10799893.2020.1805626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Acne vulgaris is a very common pilosebaceous inflammatory disease occurring primarily on the face and also rare on the upper arms, trunk, and back, which is caused by Propionibacterium, Staphylococcus, Corynebacterium, and other species. Pathophysiology of acne comprises of irregular keratinocyte proliferation, differentiation, increased sebum output, bacterial antigens and cytokines induced inflammatory response. Treatment of acne requires proper knowledge on the pathophysiology then only the clinician can come out with a proper therapeutic dosage regimen. Understanding the pathophysiology not only includes the mechanism but also involvement of receptors. Thus, this review is framed in such a way that the authors have focused on the disease acne vulgaris, pathophysiology, transcription factors viz. the Forkhead Box O1 (FoxO1) Transcription Factor, hormones like androgens and receptors such as Histamine receptors, Retinoic receptor, Fibroblast growth factor receptors, Toll like receptor, Androgen receptor, Liver X-receptor, Melanocortin receptor, Peroxisome proliferator-activated receptor and epidermal growth factor receptors involvement in the progression of acne vulgaris.
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Affiliation(s)
- Sneha Bharti
- Department of Pharmaceutics, Acharya & BM Reddy College of Pharmacy, Bangalore, India
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Consequences of Vitamin A Deficiency: Immunoglobulin Dysregulation, Squamous Cell Metaplasia, Infectious Disease, and Death. Int J Mol Sci 2020; 21:ijms21155570. [PMID: 32759702 PMCID: PMC7432039 DOI: 10.3390/ijms21155570] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022] Open
Abstract
Vitamin A is an important regulator of immune protection, but it is often overlooked in studies of infectious disease. Vitamin A binds an array of nuclear receptors (e.g., retinoic acid receptor, peroxisome proliferator-activated receptor, retinoid X receptor) and influences the barrier and immune cells responsible for pathogen control. Children and adults in developed and developing countries are often vitamin A-deficient or insufficient, characteristics associated with poor health outcomes. To gain a better understanding of the protective mechanisms influenced by vitamin A, we examined immune factors and epithelial barriers in vitamin A deficient (VAD) mice, vitamin D deficient (VDD) mice, double deficient (VAD+VDD) mice, and mice on a vitamin-replete diet (controls). Some mice received insults, including intraperitoneal injections with complete and incomplete Freund’s adjuvant (emulsified with PBS alone or with DNA + Fus-1 peptide) or intranasal inoculations with Sendai virus (SeV). Both before and after insults, the VAD and VAD+VDD mice exhibited abnormal serum immunoglobulin isotypes (e.g., elevated IgG2b levels, particularly in males) and cytokine/chemokine patterns (e.g., elevated eotaxin). Even without insult, when the VAD and VAD+VDD mice reached 3–6 months of age, they frequently exhibited opportunistic ascending bacterial urinary tract infections. There were high frequencies of nephropathy (squamous cell hyperplasia of the renal urothelium, renal scarring, and ascending pyelonephritis) and death in the VAD and VAD+VDD mice. When younger VAD mice were infected with SeV, the predominant lesion was squamous cell metaplasia of respiratory epithelium in lungs and bronchioles. Results highlight a critical role for vitamin A in the maintenance of healthy immune responses, epithelial cell integrity, and pathogen control.
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21
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LncRNA DANCR upregulates PI3K/AKT signaling through activating serine phosphorylation of RXRA. Cell Death Dis 2018; 9:1167. [PMID: 30518934 PMCID: PMC6281578 DOI: 10.1038/s41419-018-1220-7] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/01/2018] [Accepted: 11/14/2018] [Indexed: 12/20/2022]
Abstract
Conventional therapies and novel molecular targeted therapies against breast cancer have gained great advances over the past two decades. However, poor prognosis and low survival rate are far from expectation for improvement, particularly in patients with triple negative breast cancer (TNBC). Here, we found that lncRNA DANCR was significantly overregulated in TNBC tissues and cell lines compared with normal breast tissues or other type of breast cancer. Knockdown of DANCR suppressed TNBC proliferation both in vitro and in vivo. Further study of underlying mechanisms demonstrated that DANCR bound with RXRA and increased its serine 49/78 phosphorylation via GSK3β, resulting in activating PIK3CA transcription, and subsequently enhanced PI3K/AKT signaling and TNBC tumorigenesis. Taken together, Our findings identified DANCR as an pro-oncogene and uncoverd a new working pattern of lncRNA to mediate TNBC tumorigenesis, which may be a potential therapeutic target for improving treatment of TNBC.
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Xiao YB, Cai SH, Liu LL, Yang X, Yun JP. Decreased expression of peroxisome proliferator-activated receptor alpha indicates unfavorable outcomes in hepatocellular carcinoma. Cancer Manag Res 2018; 10:1781-1789. [PMID: 29983595 PMCID: PMC6027701 DOI: 10.2147/cmar.s166971] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) has a close relationship with lipid metabolism. Peroxisome proliferator-activated receptor α (PPARα) plays a crucial role in the regulation of fatty acid oxidation in the liver. However, the role of PPARα in HCC remains unclear. Methods A total of 804 HCC specimens were collected to construct a tissue microarray and for immunohistochemical analysis. The relationship between PPARα expression and clinical features of HCC patients was analyzed. Kaplan–Meier analysis was conducted to assess the prognostic value of PPARα expression levels. Results The expression of PPARα in HCC was noticeably decreased in HCC tissues. HCC patients with high levels of PPARα expression in cytoplasm had smaller tumors (P=0.027), less vascular invasion (P=0.049), and a higher proportion of complete involucrum (P=0.038). Kaplan–Meier analysis showed that HCC patients with low PPARα expression in the cytoplasm had significantly worse outcomes in terms of overall survival (P<0.001), disease-free survival (P=0.024), and the probability of recurrence (P=0.037). Similarly, overall survival was significantly shorter in HCC patients with negative PPARα expression in the nucleus (P=0.034). Multivariate Cox analyses indicated that tumor size (P=0.001), TNM stage (P<0.001), vascular invasion (P<0.001), and PPARα expression in the cytoplasm (P<0.001) were found to be independent prognostic variables for overall survival. Conclusion Our data revealed that PPARα expression was decreased in HCC samples. High PPARα expression was correlated with longer survival times in HCC patients, and served as an independent factor for better outcomes. Our study therefore provides a promising biomarker for prognostic prediction and a potential therapeutic target for HCC.
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Affiliation(s)
- Yong-Bo Xiao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China, .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Shao-Hang Cai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China, .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Li-Li Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China, .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Xia Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China, .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
| | - Jing-Ping Yun
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China, .,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China,
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Abstract
Terminally differentiated cells have a reduced capacity to repair double-stranded breaks (DSB) in DNA, however, the underlying molecular mechanism remains unclear. Here, we show that miR-22 is upregulated during postmitotic differentiation of human breast MCF-7 cells, hematopoietic HL60 and K562 cells. Increased expression of miR-22 in differentiated cells was associated with decreased expression of MDC1, a protein that plays a key role in the response to DSBs. This downregulation of MDC1 was accompanied by reduced DSB repair, impaired recruitment of the protein to the site of DNA damage following IR. Conversely, inhibiting miR-22 enhanced MDC1 protein levels, recovered MDC1 foci, fully rescued DSB repair in terminally differentiated cells. Moreover, MDC1 levels, IR-induced MDC1 foci, and the efficiency of DSB repair were fully rescued by siRNA-mediated knockdown of c-Fos in differentiated cells. These findings indicate that the c-Fos/miR-22/MDC1 axis plays a relevant role in DNA repair in terminally differentiated cells, which may facilitate our understanding of molecular mechanism underlying the downregulating DNA repair in differentiated cells.
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Interactive effects of 9-cis-retinoic acid and androgen on proliferation, differentiation, and apoptosis of LNCaP prostate cancer cells. Eur J Cancer Prev 2018; 26:71-77. [PMID: 26886237 DOI: 10.1097/cej.0000000000000230] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
9-cis-Retinoic acid (9cRA), which binds to both retinoic acid receptors and retinoic X receptors, inhibits prostate cancer induction in rats and reduces growth of prostate cancer cells. However, the nature of this growth inhibition and the interactive influence of androgens are not well defined and are the subject of this report. LNCaP and PC-3 cells were cultured and treated with a range of 9cRA concentrations for 3-6 days in the absence or presence of 5α-dehydrotestosterone. 9cRA inhibited cell proliferation in a dose-dependent manner, plateauing at 10 mol/l. Treatment of cells with 10 mol/l 9cRA inhibited 5α-dihydroxytestosterone (DHT)-stimulated proliferation, the effect of which was maximal at 10 mol/l DHT. Treatment of DHT (10 mol/l)-exposed cells with 9cRA caused a dose-dependent increase in prostate-specific antigen in the medium after 6 days, but not 3 days. 9cRA caused a dose-dependent increase in apoptotic cells stained with H33258 after 3 days, but not 6 days; however, on using flow cytometry, apoptosis was apparent at both 3 and 6 days. Flow cytometry also revealed interference of G0/G1 to S phase transition by 9cRA. Inhibition by 9cRA of anchorage-independent growth of PC-3 cells was also found; LNCaP cells did not grow colonies in soft agar. 9cRA inhibited growth and induced differentiation of human LNCaP prostate cancer cells in vitro and inhibited anchorage-independent growth of PC-3 cells. Because 9cRA and 13-cis-retinoic acid, which is retinoic acid receptor-selective, prevent prostate carcinogenesis in rats, and 13-cis-retinoic acid also inhibits growth of human prostate cancer cells, the RAR is a potential molecular target for prostate cancer prevention and therapy.
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Li J, Wang Y, Li W, Xu P, Guo B, Li J, Wang H. Tissue distribution and metabolism of triadimefon and triadimenol enantiomers in Chinese lizards (Eremias argus). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 142:284-292. [PMID: 28433593 DOI: 10.1016/j.ecoenv.2017.04.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/14/2017] [Accepted: 04/14/2017] [Indexed: 06/07/2023]
Abstract
Triadimefon (TF, S-(+)-TF, R-(-)-TF) and its metabolite triadimenol (TN, TN-A1, A2 and TN-B1, B2) are two systemic fungicides and both of them are chiral pharmaceuticals which are widely used in agricultural industry. Many researches focused on the toxicity effects of triadimefon on mammals, while the ecotoxicological data of tiradimefon on reptiles is limited. In order to understand the toxicity mechanism of triadimefon in reptiles, the current study administrated S-(+)-TF or R-(-)-TF traidimefon (50mg/kgbw) to Chinese lizards (Eremias argus) respectively, the absorption, distribution of triadimefon and the formation of triadimenol were analysed at different sampling times. The metabolic pathways were demonstrated through relative gene expression using quantitative real-time PCR reaction. During the experiment time, triadimefon was quickly peaked to the maximum concentration within 12h in liver, brain, kidney, and plasma, eliminated slowly. The biotransformation in kidney was the lowest and fat possessed the worst degradation ability among others. The metabolite, triadimenol was detected in blood in 2h and reached to a plateau at about 12h in most organs (fat excepted), while the process of metabolism is stereoselective. The mainly metabolite in R-(-)-TF treated group was TN-B1, and TN-A2 in S-(+)-TF group which showed the selective metabolism to other species caused by environmental conditions, differences in the animal models and concentration of TF. The related gene expression of cyp1a1, cyp3a1 and hsd11β mRNA level in lizards showed different metabolic pathways in the liver and brain. Both P450s enzymes and 11β-hydroxysteroid dehydrogenase participated in metabolic reaction in liver, while no 11β-hydroxysteroid dehydrogenase pathway observed in brain. This diversity in liver and brain may cause different degradation rate and ecotoxicological effect in different organs.
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Affiliation(s)
- Jitong Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China; University of Chinese Academy of Sciences, Yuquan RD 19 a, Beijing 100049, China
| | - Yinghuan Wang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Wei Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Peng Xu
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Baoyuan Guo
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Jianzhong Li
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
| | - Huili Wang
- Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Shuangqing RD 18, Beijing 100085, China
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Koo EJ, Lee H, Jung E, Choi SO. Laparoscopic distal pancreatectomy of a solid pseudopapillary tumour in a teenager after size reduction: A case report. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2017. [DOI: 10.1016/j.epsc.2017.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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All-Trans Retinoic Acid Modulates TLR4/NF- κB Signaling Pathway Targeting TNF- α and Nitric Oxide Synthase 2 Expression in Colonic Mucosa during Ulcerative Colitis and Colitis Associated Cancer. Mediators Inflamm 2017; 2017:7353252. [PMID: 28408791 PMCID: PMC5376956 DOI: 10.1155/2017/7353252] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Revised: 01/05/2017] [Accepted: 02/19/2017] [Indexed: 12/24/2022] Open
Abstract
Colitis associated cancer (CAC) is the colorectal cancer (CRC) subtype that is associated with bowel disease such as ulcerative colitis (UC). The data on role of NF-κB signaling in development and progression of CAC were derived from preclinical studies, whereas data from human are rare. The aim of this work was to study the contribution of NF-κB pathway during UC and CAC, as well as the immunomodulatory effect of all-trans retinoic acid (AtRA). We analyzed the expression of NOS2, TNF-α, TLR4, and NF-κB, in colonic mucosa. We also studied NO/TNF-α modulation by LPS in colonic mucosa pretreated with AtRA. A marked increase in TLR4, NF-κB, TNF-α, and NOS2 expression was reported in colonic mucosa. The relationship between LPS/TLR4 and TNF-α/NO production, as well as the role of NF-κB signaling, was confirmed by ex vivo experiments and the role of LPS/TLR4 in NOS2/TNF-α induction through NF-κB pathway was suggested. AtRA downregulates NOS2 and TNF-α expression. Collectively, our study indicates that AtRA modulates in situ LPS/TLR4/NF-κB signaling pathway targeting NOS2 and TNF-α expression. Therefore, we suggest that AtRA has a potential value in new strategies to improve the current therapy, as well as in the clinical prevention of CAC development and progression.
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Marchwicka A, Cunningham A, Marcinkowska E, Brown G. Therapeutic use of selective synthetic ligands for retinoic acid receptors: a patent review. Expert Opin Ther Pat 2016; 26:957-71. [PMID: 27336223 DOI: 10.1080/13543776.2016.1205586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Differentiation therapy using all-trans retinoic acid (ATRA) revolutionised the treatment of acute promyelocytic leukaemia to such an extent that it is now one of the most curable types of leukaemia, with ATRA and anthracycline-based chemotherapy providing cure rates above 80%. Isotretinoin is used to treat chronic acne. Here, we examine the information described in recent patents and the extent to which new findings are influencing extending retinoid-based differentiation therapy to other cancers, as well as the development of new therapies for other disorders. AREAS COVERED A search has been performed on the literature and worldwide patents filed during 2014 to the present time, focusing on synthetic agonists and antagonists of retinoic acid receptors and novel compositions for the delivery of these agents. EXPERT OPINION New potential therapeutic applications have been described, including lung, breast and head and neck cancers, T cell lymphoma and neurodegenerative, metabolic, ophthalmic, muscle, and inflammatory disorders. Recent patents have described the means to maximise retinoid activity. Two decades of efforts to extend retinoid-based therapies have been disappointing and new synthetic retinoids, target diseases and modes of delivery may well resolve this long standing issue.
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Affiliation(s)
- Aleksandra Marchwicka
- a Laboratory of Protein Biochemistry, Faculty of Biotechnology , University of Wroclaw , Wroclaw , Poland
| | - Alan Cunningham
- b Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences , University of Birmingham , Birmingham , UK
| | - Ewa Marcinkowska
- a Laboratory of Protein Biochemistry, Faculty of Biotechnology , University of Wroclaw , Wroclaw , Poland
| | - Geoffrey Brown
- c Institute of Clinical Sciences, College of Medical and Dental Sciences , University of Birmingham , Birmingham , UK
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Talero E, García-Mauriño S, Ávila-Román J, Rodríguez-Luna A, Alcaide A, Motilva V. Bioactive Compounds Isolated from Microalgae in Chronic Inflammation and Cancer. Mar Drugs 2015; 13:6152-209. [PMID: 26437418 PMCID: PMC4626684 DOI: 10.3390/md13106152] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/09/2015] [Accepted: 09/15/2015] [Indexed: 12/12/2022] Open
Abstract
The risk of onset of cancer is influenced by poorly controlled chronic inflammatory processes. Inflammatory diseases related to cancer development include inflammatory bowel disease, which can lead to colon cancer, or actinic keratosis, associated with chronic exposure to ultraviolet light, which can progress to squamous cell carcinoma. Chronic inflammatory states expose these patients to a number of signals with tumorigenic effects, including nuclear factor kappa B (NF-κB) and mitogen-activated protein kinases (MAPK) activation, pro-inflammatory cytokines and prostaglandins release and ROS production. In addition, the participation of inflammasomes, autophagy and sirtuins has been demonstrated in pathological processes such as inflammation and cancer. Chemoprevention consists in the use of drugs, vitamins, or nutritional supplements to reduce the risk of developing or having a recurrence of cancer. Numerous in vitro and animal studies have established the potential colon and skin cancer chemopreventive properties of substances from marine environment, including microalgae species and their products (carotenoids, fatty acids, glycolipids, polysaccharides and proteins). This review summarizes the main mechanisms of actions of these compounds in the chemoprevention of these cancers. These actions include suppression of cell proliferation, induction of apoptosis, stimulation of antimetastatic and antiangiogenic responses and increased antioxidant and anti-inflammatory activity.
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Affiliation(s)
- Elena Talero
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Sofía García-Mauriño
- Department of Plant Biology and Ecology, Faculty of Biology, University of Seville, Seville 41012, Spain.
| | - Javier Ávila-Román
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Azahara Rodríguez-Luna
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Antonio Alcaide
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
| | - Virginia Motilva
- Department of Pharmacology, Faculty of Pharmacy, University of Seville, Seville 41012, Spain.
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Everts HB, Suo L, Ghim S, Bennett Jenson A, Sundberg JP. Retinoic acid metabolism proteins are altered in trichoblastomas induced by mouse papillomavirus 1. Exp Mol Pathol 2015; 99:546-51. [PMID: 26416148 DOI: 10.1016/j.yexmp.2015.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 09/21/2015] [Indexed: 12/21/2022]
Abstract
Skin cancer burden is significant as treatment costs have skyrocketed to $8.1 million annually and some forms metastasize, such as cutaneous squamous cell carcinoma (cSCC) and melanoma. cSCC is caused by altered growth factor signaling induced by chemical carcinogens, ultraviolet light (UV) exposure, and infections with papillomaviruses (PVs). One of the few options for preventing cSCC in high-risk patients is oral retinoids. While much is understood about retinoid treatments and metabolism in mouse models of chemically and UV exposure induced cSCC, little is known about the role of retinoids in PV-induced cSCC. To better understand how retinoid metabolism is altered in cSCC, we examined the expression of this pathway in the newly discovered mouse papillomavirus (MmuPV1), which produces trichoblastomas in dorsal skin but not cSCC. We found significant increases in a rate-limiting enzyme involved in retinoic acid synthesis and retinoic acid binding proteins, suggestive of increased RA synthesis, in MmuPV1-induced tumors in B6.Cg-Foxn1(nu)/J mice. Similar increases in these proteins were seen after acute UVB exposure in Crl:SKH1-Hr(hr) mice and in regressing pre-cancerous lesions in a chemically-induced mouse model, suggesting a common mechanism in limiting the progression of papillomas to full blown cSCC.
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Affiliation(s)
- Helen B Everts
- Department of Human Sciences (Nutrition), The Ohio State University, Columbus, OH, United States.
| | - Liye Suo
- Department of Human Sciences (Nutrition), The Ohio State University, Columbus, OH, United States
| | - Shinge Ghim
- The James Graham Brown Cancer Center, The University of Louisville, Louisville, KY, United States
| | - A Bennett Jenson
- The James Graham Brown Cancer Center, The University of Louisville, Louisville, KY, United States
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Xia H, Cheng Y, Xu Y, Cheng Z. Retinoic acid liposome-hydrogel: preparation, penetration through mouse skin and induction of F9 mouse teratocarcinoma stem cells differentiation. BRAZ J PHARM SCI 2015. [DOI: 10.1590/s1984-82502015000300006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Retinoic acid (RA), a metabolite of retinol, is one of the most biologically active forms of retinoid and plays vital roles in embryonic development and in the regulation of cell proliferation and differentiation. Knowing that liposomes simulate cell membranes and that hydrogel is an ideal delivery vehicle for topical medicine, liposome-hydrogel is a novel preparation that has synergistic advantages over each component separately. Our objective was to investigate the characteristics of RA liposome-hydrogel. For quality control of the RA-loaded liposomes, we measured their morphology, particle size, Zeta-potential, and entrapment efficiency. Then we determined the viscosity of RA liposome-hydrogel. Next, the diffusion through mouse skin was explored, followed by investigation of the mRNA expression levels of Ker18, REX1, and α-FP using Q-PCR. The results showed that RA liposome-hydrogel penetrates the mouse skin effectively. The permeation rates were: Qn (%) of RA liposome-hydrogel < Qn(%) of RA-loaded liposome < Qn (%) of RA. The mRNA expression levels were dose-dependent and the effective dose decreased between vehicles due to their different release rates. F9 mouse teratocarcinoma stem cells were an ideal model to explore the mechanism of RA liposome-hydrogel in stem cell differentiation.
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Affiliation(s)
- Hongmei Xia
- Anhui University, People's Republic of China
| | - Yongfeng Cheng
- University of Science and Technology of China, People's Republic of China
| | - Yinxiang Xu
- Pharmaceutical Co. Ltd, People's Republic of China
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Priyamvada S, Anbazhagan AN, Gujral T, Borthakur A, Saksena S, Gill RK, Alrefai WA, Dudeja PK. All-trans-retinoic Acid Increases SLC26A3 DRA (Down-regulated in Adenoma) Expression in Intestinal Epithelial Cells via HNF-1β. J Biol Chem 2015; 290:15066-77. [PMID: 25887398 PMCID: PMC4463450 DOI: 10.1074/jbc.m114.566356] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 04/10/2015] [Indexed: 11/06/2022] Open
Abstract
All-trans-retinoic acid (ATRA) is an active vitamin A derivative known to modulate a number of physiological processes, including growth and development, differentiation, and gene transcription. The protective effect of ATRA in gut inflammation and diarrheal diseases has been documented. In this regard, down-regulated in adenoma (DRA, a key luminal membrane Cl(-) transporter involved in NaCl absorption) has been shown to be suppressed in intestinal inflammation. This suppression of DRA is associated with diarrheal phenotype. Therefore, current studies were undertaken to examine the effects of ATRA on DRA expression. DRA mRNA levels were significantly elevated (∼4-fold) in response to ATRA with induction starting as early as 8 h of incubation. Similarly, ATRA increased DRA protein expression by ∼50%. Furthermore, DRA promoter activity was significantly increased in response to ATRA indicating transcriptional activation. ATRA effects on DRA expression appeared to be mediated via the RAR-β receptor subtype, as ATRA remarkably induced RAR-β mRNA levels, whereas RAR-β knockdown substantially attenuated the ability of ATRA to increase DRA expression. Results obtained from agonist (CH-55) and antagonist (LE-135) studies further confirmed that ATRA exerts its effects through RAR-β. Furthermore, ATRA treatment resulted in a significant increase in HNF-1β mRNA levels. The ability of ATRA to induce DRA expression was inhibited in the presence of HNF-1β siRNA indicative of its involvement in ATRA-induced effects on DRA expression. In conclusion, ATRA may act as an antidiarrheal agent by increasing DRA expression via the RAR-β/HNF-1β-dependent pathway.
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Affiliation(s)
- Shubha Priyamvada
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Arivarasu N Anbazhagan
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Tarunmeet Gujral
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Alip Borthakur
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Seema Saksena
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Ravinder K Gill
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612
| | - Waddah A Alrefai
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612 From the Jesse Brown Veterans Affairs Medical Center
| | - Pradeep K Dudeja
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois 60612 From the Jesse Brown Veterans Affairs Medical Center,
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Álvarez S, Lieb M, Martínez C, Khanwalkar H, Rodríguez-Barrios F, Álvarez R, Gronemeyer H, de Lera AR. Modulation of Retinoic Acid Receptor Subtypes by 5- and 8-Substituted (Naphthalen-2-yl)-based Arotinoids. ChemMedChem 2015; 10:1378-91. [PMID: 26012882 DOI: 10.1002/cmdc.201500150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Indexed: 12/29/2022]
Abstract
Retinoid receptors (RARs and RXRs) transduce the signals of their natural and synthetic ligands (retinoids and rexinoids) to cellular transcriptional machinery to induce gene programs that control diverse biological and physiological effects on organisms. All-trans-retinoic acid, the natural ligand for RARs, is used therapeutically for the treatment of acute promyelocytic leukemia (APL), whereas the synthetic rexinoid bexarotene (a representative member of the aromatic retinoids or arotinoids) is approved for the treatment of cutaneous T-cell lymphoma (CTCL). Other retinoids have found applications in the topical treatment of skin disorders. In continuation of previous work on the naphthalene-based arotinoid scaffold, we synthesized a new series of (3-halo)benzoic acids connected to C5- or C8-substituted naphthyl rings via (E)-ethenyl and amide and, for the C5 series, (E)-chalcone linkers. These compounds were evaluated as RAR modulators in comparison with previously described dihydronaphthalene arotinoids with the same substitution pattern. Transactivation studies in this series revealed an absence of synergy between small halogen atoms (F, Cl) at C3 and the groups at C5 or C8, as had been observed on some of the dihydronaphthalene analogues. Instead, non-halogenated 4-(2-naphthamido)benzoic acid derivatives transactivated toward the RARβ subtype in preference to the paralogues. The derivatives with bulkier substituents at C8 were characterized as dual RARβ/RARα antagonists, and (E)-4-[(8-(phenylethynyl)naphthalene-2-yl)ethenyl]benzoic acid (11 c), with an ethenyl connector, was shown to be a potent antagonist of RARα.
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Affiliation(s)
- Susana Álvarez
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, CINBIO and IBI, As Lagoas-Marcosende, 36310 Vigo (Spain)
| | - Michele Lieb
- Department of Cancer Biology, Institut de Génetique et de Biologie Moleculaire et Cellulaire (IGBMC)/CNRS/INSERM/ULP, BP 163, Ilkirch Cedex, C.U. de Strasbourg (France)
| | - Claudio Martínez
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, CINBIO and IBI, As Lagoas-Marcosende, 36310 Vigo (Spain)
| | - Harshal Khanwalkar
- Department of Cancer Biology, Institut de Génetique et de Biologie Moleculaire et Cellulaire (IGBMC)/CNRS/INSERM/ULP, BP 163, Ilkirch Cedex, C.U. de Strasbourg (France)
| | - Fátima Rodríguez-Barrios
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, CINBIO and IBI, As Lagoas-Marcosende, 36310 Vigo (Spain)
| | - Rosana Álvarez
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, CINBIO and IBI, As Lagoas-Marcosende, 36310 Vigo (Spain).
| | - Hinrich Gronemeyer
- Department of Cancer Biology, Institut de Génetique et de Biologie Moleculaire et Cellulaire (IGBMC)/CNRS/INSERM/ULP, BP 163, Ilkirch Cedex, C.U. de Strasbourg (France).
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, CINBIO and IBI, As Lagoas-Marcosende, 36310 Vigo (Spain).
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Nadendla E, Teyssier C, Delfosse V, Vivat V, Krishnasamy G, Gronemeyer H, Bourguet W, Germain P. An Unexpected Mode Of Binding Defines BMS948 as A Full Retinoic Acid Receptor β (RARβ, NR1B2) Selective Agonist. PLoS One 2015; 10:e0123195. [PMID: 25933005 PMCID: PMC4416907 DOI: 10.1371/journal.pone.0123195] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 02/19/2015] [Indexed: 11/23/2022] Open
Abstract
Retinoic acid is an important regulator of cell differentiation which plays major roles in embryonic development and tissue remodeling. The biological action of retinoic acid is mediated by three nuclear receptors denoted RARα, β and γ. Multiple studies support that RARβ possesses functional characteristics of a tumor suppressor and indeed, its expression is frequently lost in neoplastic tissues. However, it has been recently reported that RARβ could also play a role in mammary gland tumorigenesis, thus demonstrating the important but yet incompletely understood function of this receptor in cancer development. As a consequence, there is a great need for RARβ-selective agonists and antagonists as tools to facilitate the pharmacological analysis of this protein in vitro and in vivo as well as for potential therapeutic interventions. Here we provide experimental evidences that the novel synthetic retinoid BMS948 is an RARβ-selective ligand exhibiting a full transcriptional agonistic activity and activating RARβ as efficiently as the reference agonist TTNPB. In addition, we solved the crystal structures of the RARβ ligand-binding domain in complex with BMS948 and two related compounds, BMS641 and BMS411. These structures provided a rationale to explain how a single retinoid can be at the same time an RARα antagonist and an RARβ full agonist, and revealed the structural basis of partial agonism. Finally, in addition to revealing that a flip by 180° of the amide linker, that usually confers RARα selectivity, accounts for the RARβ selectivity of BMS948, the structural analysis uncovers guidelines for the rational design of RARβ-selective antagonists.
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Affiliation(s)
- Eswarkumar Nadendla
- Inserm U1054, Centre de Biochimie Structurale, Montpellier, France
- CNRS UMR5048, Universités Montpellier 1 & 2, Montpellier, France
- CAS in Crystallography and Biophysics, University of Madras, Chennai, India
| | - Catherine Teyssier
- Inserm U1054, Centre de Biochimie Structurale, Montpellier, France
- CNRS UMR5048, Universités Montpellier 1 & 2, Montpellier, France
| | - Vanessa Delfosse
- Inserm U1054, Centre de Biochimie Structurale, Montpellier, France
- CNRS UMR5048, Universités Montpellier 1 & 2, Montpellier, France
| | | | | | - Hinrich Gronemeyer
- IGBMC, CNRS/INSERM/UdS/CERBM, Illkirch-Cedex, C.U. de Strasbourg, France
| | - William Bourguet
- Inserm U1054, Centre de Biochimie Structurale, Montpellier, France
- CNRS UMR5048, Universités Montpellier 1 & 2, Montpellier, France
- * E-mail: (WB); (PG)
| | - Pierre Germain
- Inserm U1054, Centre de Biochimie Structurale, Montpellier, France
- CNRS UMR5048, Universités Montpellier 1 & 2, Montpellier, France
- * E-mail: (WB); (PG)
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Association study between novel CYP26 polymorphisms and the risk of betel quid-related malignant oral disorders. ScientificWorldJournal 2015; 2015:160185. [PMID: 25839051 PMCID: PMC4369936 DOI: 10.1155/2015/160185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 06/26/2014] [Indexed: 01/14/2023] Open
Abstract
BQ chewing may produce significant amounts of reactive oxygen species (ROS), resulting in oral mucosa damage, and ROS may be metabolized by CYP26 families. Because the CYP26 polymorphisms associated with malignant oral disorders are not well known, we conducted an association study on the associations between the single nucleotide polymorphisms (SNP) of CYP26 families and the risks of malignant oral disorders. BQ chewers with the CYP26A1 rs4411227 C/C+C/G genotype and C allele showed an increased risk of oral and pharyngeal cancer (adjusted odds ratio (aOR) = 2.30 and 1.93, respectively). The CYP26B1 rs3768647 G allele may be associated with oral and pharyngeal cancer (aOR = 3.12) and OPMDs (aOR = 2.23). Subjects with the rs9309462 CT genotype and C allele had an increased risk of oral and pharyngeal cancer (aOR = 9.24 and 8.86, respectively) and OPMDs (aOR = 8.17 and 7.87, respectively). The analysis of joint effects between the CYP26A1 rs4411227 and CYP26B1 rs3768647/rs9309462 polymorphisms revealed statistical significance (aOR = 29.91 and 10.03, respectively). Additionally, we observed a significant mRNA expression of CY26A1 and CYP26B1 in cancerous tissues compared with adjacent noncancerous tissues. Our findings suggest that novel CYP26 polymorphisms are associated with an increased risk of malignant oral disorders, particularly among BQ chewers.
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Manipulating miRNA Expression: A Novel Approach for Colon Cancer Prevention and Chemotherapy. ACTA ACUST UNITED AC 2015; 1:141-153. [PMID: 26029495 DOI: 10.1007/s40495-015-0020-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Small non-coding RNA has been implicated in the control of various cellular processes such as proliferation, apoptosis, and differentiation. About 50% of the miRNA genes are positioned in cancer-associated genomic regions. Several studies have shown that miRNA expression is deregulated in cancer and modulating their expression has reversed the cancer phenotype. Therefore, mechanisms to modulate microRNA (miRNA) activity have provided a novel opportunity for cancer prevention and therapy. In addition, a common cause for development of colorectal cancers is environmental and lifestyle factors. One such factor, diet has been shown to modulate miRNA expression in colorectal cancer patients. In this chapter, we will summarize the work demonstrating that miRNAs are novel promising drug targets for cancer chemoprevention and therapy. Improved delivery, increased stability and enhanced regulation of off-target effects will overcome the current challenges of this exciting approach in the field of cancer prevention and therapy.
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Flodrova D, Benkovska D, Macejova D, Bialesova L, Hunakova L, Brtko J, Bobalova J. Proteomic analysis of changes in the protein composition of MCF-7 human breast cancer cells induced by all-trans retinoic acid, 9-cis retinoic acid, and their combination. Toxicol Lett 2014; 232:226-32. [PMID: 25455455 DOI: 10.1016/j.toxlet.2014.09.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 12/22/2022]
Abstract
Retinoic acid (all-trans and 9-cis) isomers represent important therapeutic agents for many types of cancers, including human breast cancer. Changes in protein composition of the MCF-7 human breast cancer cells were induced by all-trans retinoic acid, 9-cis retinoic acid, and their combination and subsequently proteomic strategies based on bottom-up method were applied. Proposed approach was used for the analysis of proteins extracted from MCF-7 human breast cancer cell line utilizing a commercially manufactured kit RIPA and separated on two dimensional (2D) sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) after treatment with both retinoic acid isomers. We found significant differences in occurrence of proteins probably affecting the cell migration process in tumour cells. Heat shock protein 27, ribonucleoprotein SmD3, and cofilin-1 were significantly upregulated after treatment with combination of individual retinoic acid isomers. On the other hand, AP-5 complex subunit beta-1 shows the different response. Thus, the results might help to find the answer to important medical questions on (i) the identification of signaling pathways affected by retinoic acid isomers or (ii) how the observed proteomic pattern might reflect the effectiveness of retinoic acids treatment.
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Affiliation(s)
- D Flodrova
- Institute of Analytical Chemistry of the ASCR, v. v. i., Brno, Czech Republic
| | - D Benkovska
- Institute of Analytical Chemistry of the ASCR, v. v. i., Brno, Czech Republic
| | - D Macejova
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - L Bialesova
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - L Hunakova
- Institute of Experimental Oncology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - J Brtko
- Institute of Experimental Endocrinology, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - J Bobalova
- Institute of Analytical Chemistry of the ASCR, v. v. i., Brno, Czech Republic.
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Hassel JC, Amann PM, Schadendorf D, Eichmüller SB, Nagler M, Bazhin AV. Lecithin retinol acyltransferase as a potential prognostic marker for malignant melanoma. Exp Dermatol 2014; 22:757-9. [PMID: 24433184 DOI: 10.1111/exd.12236] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2013] [Indexed: 12/24/2022]
Abstract
Metabolism inside cells differs between cancer and normal cells. Because disturbance of vitamin A metabolism might be important, we investigated expression of the enzymes lecithin retinol acyltransferase (LRAT) and RPE65 by immunohistochemistry in melanoma metastases and melanocytic nevi. Semiquantitative evaluation of this expression revealed downregulated expression of RPE65 in malignant melanoma compared with benign melanocytic nevi (P < 0.001). In contrast, expression of LRAT was not significantly different (P = 0.339). High LRAT expression in melanoma metastases was inversely correlated with patient survival; Kaplan-Meier analysis revealed earlier melanoma-related death (P = 0.003). Expression of LRAT might, therefore, be a prognostic marker of the clinical course of melanoma.
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Affiliation(s)
- Jessica C Hassel
- Skin Cancer Unit, German Cancer Research Centre (DKFZ), Heidelberg, Germany; Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
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Shan PR, Xu WW, Huang ZQ, Pu J, Huang WJ. Protective role of retinoid X receptor in H9c2 cardiomyocytes from hypoxia/reoxygenation injury in rats. World J Emerg Med 2014; 5:122-7. [PMID: 25215161 DOI: 10.5847/wjem.j.issn.1920-8642.2014.02.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 03/06/2014] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Retinoid X receptor (RXR) plays a central role in the regulation of intracellular receptor signaling pathways. The activation of RXR has protective effect on H2O2-induced apoptosis of H9c2 ventricular cells in rats. But the protective effect and mechanism of activating RXR in cardiomyocytes against hypoxia/reoxygenation (H/R)-induced oxidative iniury are still unclear. METHODS The model of H/R injury was established through hypoxia for 2 hours and reoxygenation for 4 hours in H9c2 cardiomyocytes of rats. 9-cis-retinoic acid (9-cis RA) was obtained as an RXR agonist, and HX531 as an RXR antagonist. Cultured cardiomyocytes were randomly divided into four groups: sham group, H/R group, H/R+9-cis RA -pretreated group (100 nmol/L 9-cis RA), and H/R+9-cis RA+HX531-pretreated group (2.5 μmol/L HX531). The cell viability was measured by MTT, apoptosis rate of cardiomyocytes by flow cytometry analysis, and mitochondrial membrane potential (ΔΨm) by JC-1 fluorescent probe, and protein expressions of Bcl-2, Bax and cleaved caspase-9 with Western blotting. All measurement data were expressed as mean±standard deviation, and analyzed using one-way ANOVA and the Dunnett test. Differences were considered significant when P was <0.05. RESULTS Pretreatment with RXR agonist enhanced cell viability, reduced apoptosis ratio, and stabled ΔΨm. Dot blotting experiments showed that under H/R stress conditions, Bcl-2 protein level decreased, while Bax and cleaved caspase-9 were increased. 9-cis RA administration before H/R stress prevented these effects, but the protective effects of activating RXR on cardiomyocytes against H/R induced oxidative injury were abolished when pretreated with RXR pan-antagonist HX531. CONCLUSION The activation of RXR has protective effects against H/R injury in H9c2 cardiomyocytes of rats through attenuating signaling pathway of mitochondria apoptosis.
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Affiliation(s)
- Pei-Ren Shan
- Department of Cardiology, First AffiliatedHospital of Wenzhou Medical University, Wenzhou 325100, China
| | - Wei-Wei Xu
- Department of Cardiology, First AffiliatedHospital of Wenzhou Medical University, Wenzhou 325100, China
| | - Zhou-Qing Huang
- Department of Cardiology, First AffiliatedHospital of Wenzhou Medical University, Wenzhou 325100, China
| | - Jun Pu
- Department of Cardiology, First AffiliatedHospital of Wenzhou Medical University, Wenzhou 325100, China
| | - Wei-Jian Huang
- Department of Cardiology, First AffiliatedHospital of Wenzhou Medical University, Wenzhou 325100, China
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A Role for Acyclic Retinoid in the Chemoprevention of Hepatocellular Carcinoma: Therapeutic Strategy Targeting Phosphorylated Retinoid X Receptor-α. Diseases 2014. [DOI: 10.3390/diseases2030226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Evaluation of steroid hormones and their receptors in development and progression of renal cell carcinoma. J Kidney Cancer VHL 2014; 1:17-25. [PMID: 28326246 PMCID: PMC5345544 DOI: 10.15586/jkcvhl.2014.9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 06/09/2014] [Indexed: 01/20/2023] Open
Abstract
Steroid hormones and their receptors have important roles in normal kidney biology, and alterations in their expression and function help explain the differences in development of kidney diseases, such as nephrotic syndrome and chronic kidney disease. The distinct gender difference in incidence of renal cell carcinoma (RCC), with males having almost twice the incidence as females globally, also suggests a role for sex hormones or their receptors in RCC development and progression. There was a peak in interest in evaluating the roles of androgen and estrogen receptors in RCC pathogenesis in the late 20th century, with some positive outcomes for RCC therapy that targeted estrogen receptors, especially for metastatic disease. Since that time, however, there have been few studies that look at use of steroid hormone modulators for RCC, especially in the light of new therapies such as the tyrosine kinase inhibitors and new immune therapies, which are having some success for treatment of metastatic RCC. This review summarises past and current literature and attempts to stimulate renewed interest in research into the steroid hormones and their receptors, which might be used to effect, for example, in combination with the other newer targeted therapies for RCC.
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Gadducci A, Sergiampietri C, Tana R. Alternatives to risk-reducing surgery for ovarian cancer. Ann Oncol 2014; 24 Suppl 8:viii47-viii53. [PMID: 24131970 DOI: 10.1093/annonc/mdt311] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BRCA1 and BRCA2 mutation carriers have an 18%-60% and 11%-27% lifetime risk of developing ovarian carcinoma, respectively. Prophylactic bilateral salpingo-oophorectomy reduces the risk of this malignancy by up to 96%. Gynecological screening programs with periodical trans-vaginal ultrasound and serum CA125 assay have been widely used in women at hereditary high risk of ovarian carcinoma, but clinical results have been conflicting. These surveillance protocols have often fallen short of expectations because of the advanced stage of ovarian carcinoma in the identified screened women. Several investigations have been addressed to the detection of additional tumor markers able to generate more reliable screening tools. The combined serum assay of leptin, prolactin, osteopontin, CA125, macrophage inhibiting factor and insulin-like growth factor-II appears to have a significant better diagnostic reliability compared with serum CA125 alone in discriminating healthy individuals from ovarian carcinoma patients, and therefore, it could have a role in the screening of women at high risk for this malignancy. As far as chemoprevention is concerned, oral contraceptives significantly reduce the ovarian carcinoma risk also in BRCA mutation carriers, whereas the efficacy of fenretinide is still under investigation.
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Affiliation(s)
- A Gadducci
- Department of Clinical and Experimental Medicine, Division of Gynecology and Obstetrics, University of Pisa, Pisa, Italy
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Martínez C, Lieb M, Álvarez S, Rodríguez-Barrios F, Álvarez R, Khanwalkar H, Gronemeyer H, de Lera AR. Dual RXR Agonists and RAR Antagonists Based on the Stilbene Retinoid Scaffold. ACS Med Chem Lett 2014; 5:533-7. [PMID: 24900875 DOI: 10.1021/ml400521f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/19/2014] [Indexed: 01/24/2023] Open
Abstract
Arotinoids containing a C5,C8-diphenylnaphthalene-2-yl ring linked to a (C3-halogenated) benzoic acid via an ethenyl connector (but not the corresponding naphthamides), which are prepared by Horner-Wadsworth-Emmons reaction of naphthaldehydes and benzylphosphonates, display the rather unusual property of being RXR agonists (15-fold induction of the RXR reporter cell line was achieved at 3- to 10-fold lower concentration than 9-cis-retinoic acid) and RAR antagonists as shown by transient transactivation studies. The binding of such bulky ligands suggests that the RXR ligand-binding domain is endowed with some degree of structural elasticity.
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Affiliation(s)
- Claudio Martínez
- Departamento
de Química Orgánica, Facultade de Química, CINBIO, Universidade de Vigo, and Instituto de Investigación Biomédica de Vigo (IBIV), 36310 Vigo, Spain
| | - Michele Lieb
- Equipe
Labellisée Ligue Contre le Cancer, Department of Functional
Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC)/CNRS/INSERM/UdS, BP 10142, 67404 Illkirch,
Cedex, C. U. de Strasbourg, France
| | - Susana Álvarez
- Departamento
de Química Orgánica, Facultade de Química, CINBIO, Universidade de Vigo, and Instituto de Investigación Biomédica de Vigo (IBIV), 36310 Vigo, Spain
| | - Fátima Rodríguez-Barrios
- Departamento
de Química Orgánica, Facultade de Química, CINBIO, Universidade de Vigo, and Instituto de Investigación Biomédica de Vigo (IBIV), 36310 Vigo, Spain
| | - Rosana Álvarez
- Departamento
de Química Orgánica, Facultade de Química, CINBIO, Universidade de Vigo, and Instituto de Investigación Biomédica de Vigo (IBIV), 36310 Vigo, Spain
| | - Harshal Khanwalkar
- Equipe
Labellisée Ligue Contre le Cancer, Department of Functional
Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC)/CNRS/INSERM/UdS, BP 10142, 67404 Illkirch,
Cedex, C. U. de Strasbourg, France
| | - Hinrich Gronemeyer
- Equipe
Labellisée Ligue Contre le Cancer, Department of Functional
Genomics and Cancer, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC)/CNRS/INSERM/UdS, BP 10142, 67404 Illkirch,
Cedex, C. U. de Strasbourg, France
| | - Angel R. de Lera
- Departamento
de Química Orgánica, Facultade de Química, CINBIO, Universidade de Vigo, and Instituto de Investigación Biomédica de Vigo (IBIV), 36310 Vigo, Spain
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Flamini MI, Gauna GV, Sottile ML, Nadin BS, Sanchez AM, Vargas-Roig LM. Retinoic acid reduces migration of human breast cancer cells: role of retinoic acid receptor beta. J Cell Mol Med 2014; 18:1113-23. [PMID: 24720764 PMCID: PMC4508151 DOI: 10.1111/jcmm.12256] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 01/21/2014] [Indexed: 11/27/2022] Open
Abstract
Breast cancer is the most common malignancy in women and the appearance of distant metastases produces the death in 98% of cases. The retinoic acid receptor β (RARβ) is not expressed in 50% of invasive breast carcinoma compared with normal tissue and it has been associated with lymph node metastasis. Our hypothesis is that RARβ protein participates in the metastatic process. T47D and MCF7 breast cancer cell lines were used to perform viability assay, immunobloting, migration assays, RNA interference and immunofluorescence. Administration of retinoic acid (RA) in breast cancer cells induced RARβ gene expression that was greatest after 72 hrs with a concentration 1 μM. High concentrations of RA increased the expression of RARβ causing an inhibition of the 60% in cell migration and significantly decreased the expression of migration-related proteins [moesin, c-Src and focal adhesion kinase (FAK)]. The treatment with RARα and RARγ agonists did not affect the cell migration. On the contrary, the addition of the selective retinoid RARβ-agonist (BMS453) significantly reduced cell migration comparable to RA inhibition. When RARβ gene silencing was performed, the RA failed to significantly inhibit migration and resulted ineffective to reduce moesin, c-Src and FAK expressions. RARβ is necessary to inhibit migration induced by RA in breast cancer cells modulating the expression of proteins involved in cell migration.
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Affiliation(s)
- Marina Ines Flamini
- Tumor Biology Laboratory, Institute of Medicine and Experimental Biology of Cuyo, National Research Council of Argentina, Mendoza, Argentina
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45
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Dietary carrot consumption and the risk of prostate cancer. Eur J Nutr 2014; 53:1615-23. [PMID: 24519559 DOI: 10.1007/s00394-014-0667-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 02/03/2014] [Indexed: 12/30/2022]
Abstract
PURPOSE Previous studies regarding the association between carrot intake and prostate cancer risk have reported inconsistent results. We conducted a meta-analysis to summarize evidence on this association and to quantify the potential dose-response relationship. METHOD A systematic literature search of papers published in August 2013 was conducted using PubMed, EMBASE, Scopus, Web of Science, the Cochrane register, and the Chinese National Knowledge Infrastructure databases, and the references of the retrieved articles were screened. The summary risk estimates with 95% confidence intervals (CIs) for the highest versus the lowest intake of carrots were calculated. A dose-response meta-analysis was also conducted for the studies reporting categorical risk estimates for a series of exposure levels. RESULTS We found a significantly decreased risk of prostate cancer associated with the intake of carrots (odds ratio 0.82, 95% CI 0.70-0.97). In addition, the dose-response meta-analysis indicated that for each serving per week, or 10 g per day increment of carrot intake, the risk estimate of prostate cancer was 0.95 (0.90-0.99) or 0.96 (0.94-0.99). There was no evidence of significant publication bias based on Begg's funnel plot (P = 1.000) or Egger's test (P = 0.804). CONCLUSION Carrot intake might be inversely associated with prostate cancer risk. Because of the limited number of cohort studies and substantial heterogeneity observed between studies in this meta-analysis, further well-designed prospective studies are warranted to confirm the findings from our study.
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Yim CY, Mao P, Spinella MJ. Headway and hurdles in the clinical development of dietary phytochemicals for cancer therapy and prevention: lessons learned from vitamin A derivatives. AAPS JOURNAL 2014; 16:281-8. [PMID: 24431081 DOI: 10.1208/s12248-014-9562-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/02/2014] [Indexed: 01/11/2023]
Abstract
Accumulating epidemiologic and preclinical evidence support the pharmacologic use of a variety of dietary chemicals for the prevention and treatment of cancer. However, it will be challenging to translate these findings into routine clinical practice since phytochemicals have pleiotropic biological activities that have to be balanced for optimal efficacy without unacceptable and potentially unanticipated toxicities. Correctly matching patient populations and settings with optimal, natural product-based phytochemical therapies will require a greater understanding of the specific mechanisms underlying the efficacy, toxicity, and resistance of each agent in a variety of normal, premalignant, and malignant settings. This, in turn, necessitates continued commitment from the basic research community to guide carefully designed and informed clinical trials. The most developed class of anticancer phytochemicals consists of the derivatives of vitamin A called retinoids. Unlike other natural product chemicals currently under study, the retinoids have been extensively tested in humans. Over 30 years of clinical investigation has resulted in several disappointments, but there were some spectacular successes where certain retinoid-based protocols are now FDA-approved standard of care therapies to treat specific malignancies. Furthermore, retinoids are one of the most evaluated pharmacologic agents in the ultra-challenging setting of interventional cancer prevention. This review will summarize the development of retinoids in cancer therapy and prevention with an emphasis on currently proposed mechanisms mediating their efficacy, toxicity, and resistance.
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Affiliation(s)
- Christina Y Yim
- Department of Pharmacology and Toxicology, Geisel School of Medicine at Dartmouth, 7650 Remsen, Hanover, New Hampshire, 03755, USA
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Xin H, Wang K, Hu G, Xie F, Ouyang K, Tang X, Wang M, Wen D, Zhu Y, Qin X. Establishment and characterization of 7 novel hepatocellular carcinoma cell lines from patient-derived tumor xenografts. PLoS One 2014; 9:e85308. [PMID: 24416385 PMCID: PMC3887059 DOI: 10.1371/journal.pone.0085308] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Accepted: 11/25/2013] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a common cancer with poor prognosis worldwide and the molecular mechanism is not well understood. This study aimed to establish a collection of human HCC cell lines from patient-derived xenograft (PDX) models. From the 20 surgical HCC sample collections, 7 tumors were successfully developed in immunodeficient mice and further established 7 novel HCC cell lines (LIXC002, LIXC003, LIXC004, LIXC006, LIXC011, LIXC012 and CPL0903) by primary culture. The characterization of cell lines was defined by morphology, growth kinetics, cell cycle, chromosome analysis, short tandem repeat (STR) analysis, molecular profile, and tumorigenicity. Additionally, response to clinical chemotherapeutics was validated both in vitro and in vivo. STR analysis indicated that all cell lines were unique cells different from known cell lines and free of contamination by bacteria or mycoplasma. The other findings were quite heterogeneous between individual lines. Chromosome aberration could be found in all cell lines. Alpha-fetoprotein was overexpressed only in 3 out of 7 cell lines. 4 cell lines expressed high level of vimentin. Ki67 was strongly stained in all cell lines. mRNA level of retinoic acid induced protein 3 (RAI3) was decreased in all cell lines. The 7 novel cell lines showed variable sensitivity to 8 tested compounds. LIXC011 and CPL0903 possessed multiple drug resistance property. Sorafenib inhibited xenograft tumor growth of LIXC006, but not of LIXC012. Our results indicated that the 7 novel cell lines with low passage maintaining their clinical and pathological characters could be good tools for further exploring the molecular mechanism of HCC and anti-cancer drug screening.
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Affiliation(s)
- Hong Xin
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Ke Wang
- Shanghai ChemPartner Co., LTD, Shanghai, China
| | - Gang Hu
- Shanghai ChemPartner Co., LTD, Shanghai, China
| | - Fubo Xie
- Shanghai ChemPartner Co., LTD, Shanghai, China
| | | | - Xuzhen Tang
- Shanghai ChemPartner Co., LTD, Shanghai, China
| | - Minjun Wang
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Danyi Wen
- Shanghai ChemPartner Co., LTD, Shanghai, China
| | - Yizhun Zhu
- Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Xiaoran Qin
- Shanghai ChemPartner Co., LTD, Shanghai, China
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Lenko V, Bialesova L, Macejova D, Bujdak P, Breza J, Brtko J. The relationship between renal cell carcinoma and nuclear retinoid/rexinoid receptors. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2013; 157:316-24. [DOI: 10.5507/bp.2013.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 08/14/2013] [Indexed: 11/23/2022] Open
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Helm CW, Lorenz DJ, Meyer NJ, Rising WWR, Wulff JL. Retinoids for preventing the progression of cervical intra-epithelial neoplasia. Cochrane Database Syst Rev 2013; 2013:CD003296. [PMID: 23740788 PMCID: PMC10468212 DOI: 10.1002/14651858.cd003296.pub3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Invasive cervical carcinoma is preceded by a precancerous phase, cervical intra-epithelial neoplasia (CIN), which can be detected on cervical smears and confirmed by colposcopy and biopsy. Moderate and severe cases of intra-epithelial neoplasia (CIN2 and CIN3) are treated mainly with surgery to prevent progression to invasive carcinoma. Medical methods of preventing the progression or inducing the regression of CIN are needed. Retinoids are potent modulators of epithelial cell growth and differentiation that may have potential for the treatment of CIN. OBJECTIVES To ascertain whether retinoids can cause regression or prevent progression of CIN. SEARCH METHODS We searched the Cochrane Gynaecological Cancer Review Group's Specialised Register and Non-Trials Database, the Cochrane Central Register of Controlled Trials (CENTRAL) (Issue 3, 2010), and MEDLINE and EMBASE (July 2010).For the 2013 update, the searches were re-run as follows: CENTRAL, Issue 3, 2013; MEDLINE, April, Week 2, 2013; and EMBASE, Week 16, 2013. SELECTION CRITERIA Randomized controlled trials (RCTs) and non-RCTs of retinoids for treating CIN in women. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trial quality and extracted data from the trials. Adverse effects information was also collected from the trials. MAIN RESULTS Five RCTs comparing the efficacy of four different retinoids were identified. Two studies examined the effects on CIN2 and CIN3 of the retinoids N-(4-hydroxyphenyl)retinamide (fenretinide) and 9-cis-retinoic acid (aliretinoin) given orally. Two examined the effect of all-trans-retinoic acid administered topically to the cervix. The fifth study investigated the use of 13-cis-retinoic acid (isotretinoin) given orally to human immunodeficiency virus (HIV)-positive participants with CIN1 and condyloma.Four studies reported no significant effect of retinoids on the progression to higher grades of CIN, and the fifth did not report data on progression. In all studies retinoids had no significant effect on regression of CIN3. Two studies reported that retinoids were associated with regression of CIN2. One reported a greater complete regression of CIN2 over that seen with placebo, which was of borderline statistical significance (odds ratio (OR) 0.5, 95% confidence interval (CI) 0.25 to 1.02). The other study reported a nonsignificant dose-related trend toward increased rates of complete and partial regression compared with placebo. One study reported significantly worse outcomes in women receiving retinoid (OR for regression 6.00, 95% CI 1.00 to 35.91). In general, the retinoid medications were well tolerated.In the 2010 review and in this update, no new studies were identified for inclusion. AUTHORS' CONCLUSIONS The retinoids studied are not effective in causing regression of CIN3 but may have some effect on CIN2. The data on CIN1 are inadequate. Retinoids are not effective in preventing progression of CIN of any grade. At the doses given for the duration of treatment studied, the retinoids were reasonably well tolerated.
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Affiliation(s)
- C William Helm
- Division of Gynecologic Oncology, Saint Louis University School of Medicine, St Louis, MO, USA.
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Worsham MJ, Chen KM, Ghanem T, Stephen JK, Divine G. Epigenetic modulation of signal transduction pathways in HPV-associated HNSCC. Otolaryngol Head Neck Surg 2013; 149:409-16. [PMID: 23736812 DOI: 10.1177/0194599813490895] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Human papilloma virus (HPV) positive and HPV negative head and neck squamous cell cancer (HNSCC) are biologically distinct with a prognostic advantage for HPV positive patients compared to HPV negative cases. DNA promoter methylation is central to human diseases such as cancer, including HNSCC, with reported genome-wide hypomethylaton and promoter hypermethylation in HPV positive HNSCC tumors. The goal of this study was to identify differentially methylated genes in HPV positive versus HPV negative primary HNSCC genomes with clues to signaling networks. STUDY DESIGN Laboratory-based study. SETTING Primary care academic health care system. SUBJECTS AND METHODS DNA from 4 HPV positive and 4 HPV negative freshly frozen primary HNSCC were subject to comprehensive genome-wide methylation profiling. Differentially methylated gene lists were examined using the Signal Transduction Pathways (canonical) filter in the Genomatix Pathway System (GePS). RESULTS Twofold methylation differences were observed between HPV positive and HPV negative cases for 1168 genes. Pathway analysis applied to investigate the biological role of the 1168 differentially methylated genes revealed 8 signal transduction pathways forming a network of 66 genes, of which 62% are hypermethylated. CONCLUSION Our study reveals a predominant hypermethylation profile for genes in signal transduction pathways of HPV positive HNSCC tumor genomes. Because signaling events in the cell play a critical role in the execution of key biological functions, insights into how complex cellular signaling cascades and networks may be programmed in HNSCC are likely to be critical in the development of new biological agents designed to hit multiple targets.
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Affiliation(s)
- Maria J Worsham
- Department of Otolaryngology/Head and Neck Research, Henry Ford Hospital, Detroit, Michigan 48202, USA.
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