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Ansari M, Kulkarni YA, Singh K. Advanced Technologies of Drug Delivery to the Posterior Eye Segment Targeting Angiogenesis and Ocular Cancer. Crit Rev Ther Drug Carrier Syst 2024; 41:85-124. [PMID: 37824419 DOI: 10.1615/critrevtherdrugcarriersyst.2023045298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Retinoblastoma (RB), a childhood retinal cancer is caused due to RB1 gene mutation which affects the child below 5 years of age. Angiogenesis has been proven its role in RB metastasis due to the presence of vascular endothelial growth factor (VEGF) in RB cells. Therefore, exploring angiogenic pathway by inhibiting VEGF in treating RB would pave the way for future treatment. In preclinical studies, anti-VEGF molecule have shown their efficacy in treating RB. However, treatment requires recurrent intra-vitreal injections causing various side effects along with patient nonadherence. As a result, delivery of anti-VEGF agent to retina requires an ocular delivery system that can transport it in a non-invasive manner to achieve patient compliance. Moreover, development of these type of systems are challenging due to the complicated physiological barriers of eye. Adopting a non-invasive or minimally invasive approach for delivery of anti-VEGF agents would not only address the bioavailability issues but also improve patient adherence to therapy overcoming the side effects associated with invasive approach. The present review focuses on the eye cancer, angiogenesis and various novel ocular drug delivery systems that can facilitate inhibition of VEGF in the posterior eye segment by overcoming the eye barriers.
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Affiliation(s)
- Mudassir Ansari
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Mumbai 400056, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Mumbai 400056, India
| | - Kavita Singh
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, Mumbai 400056, India
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Marques AC, Costa PC, Velho S, Amaral MH. Injectable Poloxamer Hydrogels for Local Cancer Therapy. Gels 2023; 9:593. [PMID: 37504472 PMCID: PMC10379388 DOI: 10.3390/gels9070593] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/17/2023] [Accepted: 07/21/2023] [Indexed: 07/29/2023] Open
Abstract
The widespread push to invest in local cancer therapies comes from the need to overcome the limitations of systemic treatment options. In contrast to intravenous administration, local treatments using intratumoral or peritumoral injections are independent of tumor vasculature and allow high concentrations of therapeutic agents to reach the tumor site with minimal systemic toxicity. Injectable biodegradable hydrogels offer a clear advantage over other delivery systems because the former requires no surgical procedures and promotes drug retention at the tumor site. More precisely, in situ gelling systems based on poloxamers have garnered considerable attention due to their thermoresponsive behavior, biocompatibility, ease of preparation, and possible incorporation of different anticancer agents. Therefore, this review focuses on the use of injectable thermoresponsive hydrogels based on poloxamers and their physicochemical and biological characterization. It also includes a summary of these hydrogel applications in local cancer therapies using chemotherapy, phototherapy, immunotherapy, and gene therapy.
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Affiliation(s)
- Ana Camila Marques
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Paulo Cardoso Costa
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Sérgia Velho
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, R. Alfredo Allen 208, 4200-135 Porto, Portugal
- IPATIMUP—Institute of Molecular Pathology and Immunology of the University of Porto, R. Júlio Amaral de Carvalho 45, 4200-135 Porto, Portugal
| | - Maria Helena Amaral
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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Hobzova R, Sirc J, Shrestha K, Mudrova B, Bosakova Z, Slouf M, Munzarova M, Hrabeta J, Feglarova T, Cocarta AI. Multilayered Polyurethane/Poly(vinyl alcohol) Nanofibrous Mats for Local Topotecan Delivery as a Potential Retinoblastoma Treatment. Pharmaceutics 2023; 15:pharmaceutics15051398. [PMID: 37242640 DOI: 10.3390/pharmaceutics15051398] [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: 03/15/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Local chemotherapy using polymer drug delivery systems has the potential to treat some cancers, including intraocular retinoblastoma, which is difficult to treat with systemically delivered drugs. Well-designed carriers can provide the required drug concentration at the target site over a prolonged time, reduce the overall drug dose needed, and suppress severe side effects. Herein, nanofibrous carriers of the anticancer agent topotecan (TPT) with a multilayered structure composed of a TPT-loaded inner layer of poly(vinyl alcohol) (PVA) and outer covering layers of polyurethane (PUR) are proposed. Scanning electron microscopy showed homogeneous incorporation of TPT into the PVA nanofibers. HPLC-FLD proved the good loading efficiency of TPT (≥85%) with a content of the pharmacologically active lactone TPT of more than 97%. In vitro release experiments demonstrated that the PUR cover layers effectively reduced the initial burst release of hydrophilic TPT. In a 3-round experiment with human retinoblastoma cells (Y-79), TPT showed prolonged release from the sandwich-structured nanofibers compared with that from a PVA monolayer, with significantly enhanced cytotoxic effects as a result of an increase in the PUR layer thickness. The presented PUR-PVA/TPT-PUR nanofibers appear to be promising carriers of active TPT lactone that could be useful for local cancer therapy.
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Affiliation(s)
- Radka Hobzova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Jakub Sirc
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Kusum Shrestha
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Barbora Mudrova
- Department of Analytical Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Zuzana Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | | | - Jan Hrabeta
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Tereza Feglarova
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Ana-Irina Cocarta
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
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Kodetova M, Hobzova R, Sirc J, Uhlik J, Dunovska K, Svojgr K, Cocarta AI, Felsoova A, Slanar O, Sima M, Kozak I, Pochop P. The Role of Cryotherapy in Vitreous Concentrations of Topotecan Delivered by Episcleral Hydrogel Implant. Pharmaceutics 2022; 14:pharmaceutics14050903. [PMID: 35631489 PMCID: PMC9144907 DOI: 10.3390/pharmaceutics14050903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/13/2022] [Accepted: 04/18/2022] [Indexed: 01/16/2023] Open
Abstract
Transscleral diffusion delivery of chemotherapy is a promising way to reach the vitreal seeds of retinoblastoma, the most common intraocular malignancy in childhood. In this in vivo study, the delivery of topotecan via lens-shaped, bi-layered hydrogel implants was combined with transconjunctival cryotherapy to assess whether cryotherapy leads to higher concentrations of topotecan in the vitreous. The study included 18 New Zealand albino rabbits; nine rabbits received a topotecan-loaded implant episclerally and another nine rabbits received transconjunctival cryotherapy superotemporally 2 weeks before implant administration. Median vitreous total topotecan exposures (area under the curve, AUC) were 455 ng·h/mL for the cryotherapy group and 281 ng·h/mL for the non-cryotherapy group, and were significantly higher in the cryotherapy group, similar to maximum levels. Median plasma AUC were 50 ng·h/mL and 34 ng·h/mL for the cryotherapy and non-cryotherapy groups, respectively, with no statistically significant differences between them. In both groups, AUC values in the vitreous were significantly higher than in plasma, with plasma exposure at only approximately 11–12% of the level of vitreous exposure. The results confirmed the important role of the choroidal vessels in the pharmacokinetics of topotecan during transscleral administration and showed a positive effect of cryotherapy on intravitreal penetration, resulting in a significantly higher total exposure in the vitreous.
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Affiliation(s)
- Martina Kodetova
- Department of Ophthalmology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic; (M.K.); (P.P.)
| | - Radka Hobzova
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague, Czech Republic; (R.H.); (A.-I.C.)
| | - Jakub Sirc
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague, Czech Republic; (R.H.); (A.-I.C.)
- Correspondence:
| | - Jiri Uhlik
- Department of Histology and Embryology, 2nd Faculty of Medicine, Charles University, 150 06 Prague, Czech Republic; (J.U.); (A.F.)
| | - Katerina Dunovska
- Department of Medical Chemistry and Clinical Biochemistry, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic;
| | - Karel Svojgr
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic;
| | - Ana-Irina Cocarta
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague, Czech Republic; (R.H.); (A.-I.C.)
| | - Andrea Felsoova
- Department of Histology and Embryology, 2nd Faculty of Medicine, Charles University, 150 06 Prague, Czech Republic; (J.U.); (A.F.)
- Clinical and Transplant Pathology Centre, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic
| | - Ondrej Slanar
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 128 00 Prague, Czech Republic; (O.S.); (M.S.)
| | - Martin Sima
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 128 00 Prague, Czech Republic; (O.S.); (M.S.)
| | - Igor Kozak
- Moorfields Eye Hospital, Abu Dhabi P.O. Box 62807, United Arab Emirates;
| | - Pavel Pochop
- Department of Ophthalmology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic; (M.K.); (P.P.)
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Yang H, Zhang MZH, Sun HW, Chai YT, Li X, Jiang Q, Hou J. A Novel Microcrystalline BAY-876 Formulation Achieves Long-Acting Antitumor Activity Against Aerobic Glycolysis and Proliferation of Hepatocellular Carcinoma. Front Oncol 2021; 11:783194. [PMID: 34869036 PMCID: PMC8636331 DOI: 10.3389/fonc.2021.783194] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/15/2021] [Indexed: 12/17/2022] Open
Abstract
BAY-876 is an effective antagonist of the Glucose transporter type 1 (GLUT1) receptor, a mediator of aerobic glycolysis, a biological process considered a hallmark of hepatocellular carcinoma (HCC) together with cell proliferation, drug-resistance, and metastasis. However, the clinical application of BAY-876 has faced many challenges. In the presence study, we describe the formulation of a novel microcrystalline BAY-876 formulation. A series of HCC tumor models were established to determine not only the sustained release of microcrystalline BAY-876, but also its long-acting antitumor activity. The clinical role of BAY-876 was confirmed by the increased expression of GLUT1, which was associated with the worse prognosis among advanced HCC patients. A single dose of injection of microcrystalline BAY-876 directly in the HCC tissue achieved sustained localized levels of Bay-876. Moreover, the single injection of microcrystalline BAY-876 in HCC tissues not only inhibited glucose uptake and prolonged proliferation of HCC cells, but also inhibited the expression of epithelial-mesenchymal transition (EMT)-related factors. Thus, the microcrystalline BAY-876 described in this study can directly achieve promising localized effects, given its limited diffusion to other tissues, thereby reducing the occurrence of potential side effects, and providing an additional option for advanced HCC treatment.
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Affiliation(s)
- Hua Yang
- Department of Medical Oncology, Affiliated Hospital of Hebei University, Hebei Key Laboratory of Cancer Radiotherapy and Chemotherapy, Baoding, China
| | - Mu-Zi-He Zhang
- Department of Pharmacy, Medical Security Center of PLA General Hospital, Beijing, China
| | - Hui-Wei Sun
- Department of Infectious Disease, Institute of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yan-Tao Chai
- Department of Infectious Disease, Institute of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiaojuan Li
- Department of Infectious Disease, Institute of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Qiyu Jiang
- Department of Infectious Disease, Institute of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jun Hou
- Department of Infectious Disease, Institute of Infectious Disease, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
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Wang J, Liu R, Zhao Y, Ma Z, Sang Z, Wen Z, Yang X, Xie H. Novel Microcrystal Formulations of Sorafenib Facilitate a Long-Acting Antitumor Effect and Relieve Treatment Side Effects as Observed With Fundus Microcirculation Imaging. Front Oncol 2021; 11:743055. [PMID: 34513717 PMCID: PMC8426437 DOI: 10.3389/fonc.2021.743055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/06/2021] [Indexed: 12/24/2022] Open
Abstract
The tyrosine kinase inhibitors (TKIs), including sorafenib, remain one first-line antitumor treatment strategy for advanced hepatocellular carcinoma (HCC). However, many problems exist with the current orally administered TKIs, creating a heavy medical burden and causing severe side effects. In this work, we prepared a novel microcrystalline formulation of sorafenib that not only achieved sustainable release and long action in HCC tumors but also relieved side effects, as demonstrated by fundus microcirculation imaging. The larger the size of the microcrystalline formulation of sorafenib particle, the slower the release rates of sorafenib from the tumor tissues. The microcrystalline formulation of sorafenib with the largest particle size was named as Sor-MS. One intratumor injection (once administration) of Sor-MS, but not Sor-Sol (the solution formulation of sorafenib as a control), could slow the release of sorafenib in HCC tumor tissues and in turn inhibited the in vivo proliferation of HCC or the expression of EMT/pro-survival–related factors in a long-acting manner. Moreover, compared with oral administration, one intratumor injection of Sor-MS not only facilitated a long-acting antitumor effect but also relieved side effects of sorafenib, avoiding damage to the capillary network of the eye fundus, as evidenced by fundus microcirculation imaging. Therefore, preparing sorafenib as a novel microcrystal formulation could facilitate a long-acting antitumor effect and relieve drug-related side effects.
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Affiliation(s)
- Junxiao Wang
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China.,Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Rui Liu
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China.,Department of Medical Oncology, Senior Department of Oncology, the Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Yun Zhao
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zhenhu Ma
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zejie Sang
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Zhenyu Wen
- Department of Occupational and Environmental Health, School of Public Health, Jilin University, Changchun, China
| | - Xueling Yang
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute & Hospital/National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer/Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Hui Xie
- Department of Interventional Radiology, Senior Department of Oncology, The Fifth Medical Center of People's Liberation Army (PLA) General Hospital, Beijing, China
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Stimuli-responsive hydrogels for intratumoral drug delivery. Drug Discov Today 2021; 26:2397-2405. [PMID: 33892147 DOI: 10.1016/j.drudis.2021.04.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 12/13/2022]
Abstract
The ability of some hydrogels to exhibit a phase transition or change their structure in response to stimuli has been extensively explored for drug depot formation and controlled drug release. Taking advantage of the unique features of the tumor microenvironment (TME) or externally applied triggers, several injectable stimuli-responsive hydrogels have been described as promising candidates for intratumoral drug delivery. In this review, we provide a brief overview of the TME and highlight the advantages of intratumoral administration, followed by a summary of the reported strategies to endow hydrogels with responsiveness to physical (temperature and light), chemical (pH and redox potential), or biological (enzyme) stimuli.
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Xu L, Zhu S, Tang A, Liu W. LncRNA MBLN1-AS1 inhibits the progression of retinoblastoma through targeting miR-338-5p-Wnt/β-catenin signaling pathway. Inflamm Res 2021; 70:217-227. [PMID: 33454803 DOI: 10.1007/s00011-020-01432-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/07/2020] [Accepted: 12/13/2020] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE AND DESIGN Retinoblastoma is the most common primary intraocular malignancy of childhood, which brings a heavy burden to the countries across the world, especially the developing countries. It has been shown that lncRNA muscleblind-like 1 antisense RNA 1 (MBNL1-AS1) exerts anti-tumor effects in various cancers, including bladder cancer, papillary thyroid cancer, and retinoblastoma. In the present study, we hypothesized that MBNL1-AS1 might play a protective role against retinoblastoma. METHODS The expression of MBNL1-AS1 and its potential target miR-338-5p were evaluated in retinoblastoma cell line by real-time quantitative PCR and western blot. The involvement of MBNL1-AS1-miR-338-5p in the cell proliferation was evaluated by cell counting kit-8 (CCK8), and colony formation assay. The cell migration was evaluated by Transwell assay in Y79 cells, a retinoblastoma cell line. The involvement of MBNL1-AS1-miR-338-5p in tumor formation was also evaluated in mice. RESULTS It was found that MBNL1-AS1 overexpression inhibited proliferation and migration in Y79 cells. In addition, the inhibitory effects of MBNL1-AS1 on Y79 cells were significantly reversed in the presence of miR-338-5p mimics, and MBNL1-AS1 overexpression significantly decreased miR-338-5p level in Y79 cells. Furthermore, MBNL1-AS1 overexpression significantly inhibited Wnt/β-catenin signaling pathway, and this inhibitory effect was almost lost in the presence of miR-338-5p mimics. Finally, our in vivo study showed that MBNL1-AS1 overexpression significantly inhibited Y79-induced retinoblastoma in mice, and this inhibitory effect was lost in the presence of miR-338-5p mimics. CONCLUSION Our study shows that MBNL1-AS1 exerts its anti-tumor effect by targeting miR-338-5p, thereby inactivating wnt/β-catenin signaling pathway in retinoblastoma.
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Affiliation(s)
- Lei Xu
- Department of Ophthalmology, The First Affiliated Hospital of Gannan Medical University, No. 23 Qingnian Road, Zhanggong District, Ganzhou, 341000, Jiangxi Province, China
| | - Shenyu Zhu
- The First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, Jiangxi Province, China
| | - Aidong Tang
- Department of Ophthalmology, The First Affiliated Hospital of Gannan Medical University, No. 23 Qingnian Road, Zhanggong District, Ganzhou, 341000, Jiangxi Province, China
| | - Wanrong Liu
- Department of Ophthalmology, The First Affiliated Hospital of Gannan Medical University, No. 23 Qingnian Road, Zhanggong District, Ganzhou, 341000, Jiangxi Province, China.
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