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Haritha NH, Nawab A, Vijayakurup V, Anto NP, Liju VB, Alex VV, Amrutha AN, Aiswarya SU, Swetha M, Vinod BS, Sundaram S, Guijarro MV, Herlevich T, Krishna A, Nestory NK, Bava SV, Sadasivan C, Zajac-Kaye M, Anto RJ. Corrigendum: Targeting thymidylate synthase enhances the chemosensitivity of triple-negative breast cancer towards 5-FU-based combinatorial therapy. Front Oncol 2023; 13:1302413. [PMID: 38162481 PMCID: PMC10755737 DOI: 10.3389/fonc.2023.1302413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 10/27/2023] [Indexed: 01/03/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fonc.2021.656804.].
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Affiliation(s)
- Nair Hariprasad Haritha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Akbar Nawab
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Vinod Vijayakurup
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Nikhil Ponnoor Anto
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Vijayasteltar B. Liju
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Vijai V. Alex
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | | | | | - Mundanattu Swetha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Balachandran S. Vinod
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Sankar Sundaram
- Department of Pathology, Government Medical College, Kottayam, India
| | - Maria V. Guijarro
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Thomas Herlevich
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Archana Krishna
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Nesteena K. Nestory
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Smitha V. Bava
- Department of Biotechnology, University of Calicut, Malappuram, India
| | | | - Maria Zajac-Kaye
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
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Shabna A, Antony J, Vijayakurup V, Saikia M, Liju VB, Retnakumari AP, Amrutha NA, Alex VV, Swetha M, Aiswarya SU, Jannet S, Unni US, Sundaram S, Sherin DR, Anto NP, Bava SV, Chittalakkottu S, Ran S, Anto RJ. Pharmacological attenuation of melanoma by tryptanthrin pertains to the suppression of MITF-M through MEK/ERK signaling axis. Cell Mol Life Sci 2022; 79:478. [PMID: 35948813 PMCID: PMC11072980 DOI: 10.1007/s00018-022-04476-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 11/26/2022]
Abstract
Melanoma is the most aggressive among all types of skin cancers. The current strategies against melanoma utilize BRAFV600E, as a focal point for targeted therapy. However, therapy resistance developed in melanoma patients against the conventional anti-melanoma drugs hinders the ultimate benefits of targeted therapies. A major mechanism by which melanoma cells attain therapy resistance is via the activation of microphthalmia-associated transcription factor-M (MITF-M), the key transcription factor and oncogene aiding the survival of melanoma cells. We demonstrate that tryptanthrin (Tpn), an indole quinazoline alkaloid, which we isolated and characterized from Wrightia tinctoria, exhibits remarkable anti-tumor activity towards human melanoma through the down-regulation of MITF-M. Microarray analysis of Tpn-treated melanoma cells followed by a STRING protein association network analysis revealed that differential expression of genes in melanoma converges at MITF-M. Furthermore, in vitro and in vivo studies conducted using melanoma cells with differential MITF-M expression status, endogenously or ectopically, demonstrated that the anti-melanoma activity of Tpn is decisively contingent on its efficacy in down-regulating MITF-M expression. Tpn potentiates the degradation of MITF-M via the modulation of MEK1/2-ERK1/2-MITF-M signaling cascades. Murine models demonstrate the efficacy of Tpn in attenuating the migration and metastasis of melanoma cells, while remaining pharmacologically safe. In addition, Tpn suppresses the expression of mutated BRAFV600E and inhibits Casein Kinase 2α, a pro-survival enzyme that regulates ERK1/2 homeostasis in many tumor types, including melanoma. Together, we point to a promising anti-melanoma drug in Tpn, by virtue of its attributes to impede melanoma invasion and metastasis by attenuating MITF-M.
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Affiliation(s)
- Anwar Shabna
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Jayesh Antony
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
- Department of Zoology, St. Thomas College, Palai, Kottayam, Kerala, India
| | - Vinod Vijayakurup
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, 32610, USA
| | - Minakshi Saikia
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Vijayasteltar B Liju
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
- The Shraga Segal Department of Microbiology Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, 84105, Beer Sheva, Israel
| | - Archana P Retnakumari
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Nisthul A Amrutha
- Department of Biotechnology and Microbiology, Thalassery Campus, Kannur University, Kannur, Kerala, 670661, India
| | - Vijai V Alex
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Mundanattu Swetha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Sreekumar U Aiswarya
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
- Department of Biotechnology, University of Calicut, Malappuram, Kerala, 673635, India
| | - Somaraj Jannet
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India
| | - Uma Subramanian Unni
- KRIBS-BioNest, Third Campus of Rajiv Gandhi Centre for Biotechnology (RGCB) Kalamassery, Kochi, Kerala, India
| | - Sankar Sundaram
- Department of Pathology, Government Medical College, Kottayam, Kerala, 686008, India
| | - Daisy R Sherin
- Indian Institute of Information Technology and Management, Karyavattom, Kazhakkoottam, Kerala, 695581, India
| | - Nikhil Ponnoor Anto
- The Shraga Segal Department of Microbiology Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, 84105, Beer Sheva, Israel
| | - Smitha V Bava
- Department of Biotechnology, University of Calicut, Malappuram, Kerala, 673635, India
| | - Sadasivan Chittalakkottu
- Department of Biotechnology and Microbiology, Thalassery Campus, Kannur University, Kannur, Kerala, 670661, India
| | - Sophia Ran
- Department of Medical Microbiology, Immunology and Cell Biology, Southern Illinois University-School of Medicine, PO Box 19626, Springfield, IL, USA
| | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, 695014, India.
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Haritha NH, Nawab A, Vijayakurup V, Anto NP, Liju VB, Alex VV, Amrutha AN, Aiswarya SU, Swetha M, Vinod BS, Sundaram S, Guijarro MV, Herlevich T, Krishna A, Nestory NK, Bava SV, Sadasivan C, Zajac-Kaye M, Anto RJ. Targeting Thymidylate Synthase Enhances the Chemosensitivity of Triple-Negative Breast Cancer Towards 5-FU-Based Combinatorial Therapy. Front Oncol 2021; 11:656804. [PMID: 34336653 PMCID: PMC8320437 DOI: 10.3389/fonc.2021.656804] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 06/28/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The ongoing treatment modalities for breast cancer (BC) primarily rely on the expression status of ER, PR and HER-2 receptors in BC tissues. Our strategy of chemosensitization provides new insights to counter chemoresistance, a major obstacle that limits the benefits of chemotherapy of mammary cancers. METHODS By utilizing a murine breast cancer model employing NSG mice bearing orthotopic triple-negative breast cancer (TNBC) xenografts, we have evaluated the ability of phytochemical curcumin in chemosensitizing BC to 5-Fluorouracil (5-FU) chemotherapy and the differential modulations of cellular events in response to this strategy, independent of their receptor status. RESULTS A significant synergistic antitumor potential was observed in the murine model with a sub-optimal dose treatment of 5-FU plus curcumin, as evaluated by a reduction in the tumor-related parameters. We authenticated the pivotal role of thymidylate synthase (TS) in regulating the 5-FU-curcumin synergism using the TNBC pre-clinical model. Our study also confirmed the pharmacological safety of this chemotherapeutic plus phytoactive combination using acute and chronic toxicity studies in Swiss albino mice. Subsequently, the molecular docking analysis of curcumin binding to TS demonstrated the affinity of curcumin towards the cofactor-binding site of TS, rather than the substrate-binding site, where 5-FU binds. Our concomitant in vivo and in silico evidence substantiates the superior therapeutic index of this combination. CONCLUSION This is the first-ever pre-clinical study portraying TS as the critical target of combinatorial therapy for mammary carcinomas and therefore we recommend its clinical validation, especially in TNBC patients, who currently have limited therapeutic options.
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Affiliation(s)
- Nair Hariprasad Haritha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Akbar Nawab
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Vinod Vijayakurup
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Nikhil Ponnoor Anto
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Vijayasteltar B. Liju
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Vijai V. Alex
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | | | | | - Mundanattu Swetha
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Balachandran S. Vinod
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Sankar Sundaram
- Department of Pathology, Government Medical College, Kottayam, India
| | - Maria V. Guijarro
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Thomas Herlevich
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Archana Krishna
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Nesteena K. Nestory
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - Smitha V. Bava
- Department of Biotechnology, University of Calicut, Malappuram, India
| | | | - Maria Zajac-Kaye
- Department of Anatomy and Cell Biology, Cancer and Genetics Research Complex, University of Florida, Gainesville, FL, United States
| | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
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Shankar G. M, Alex VV, Nisthul A. A, Bava SV, Sundaram S, Retnakumari AP, Chittalakkottu S, Anto RJ. Pre-clinical evidences for the efficacy of tryptanthrin as a potent suppressor of skin cancer. Cell Prolif 2020; 53:e12710. [PMID: 31663659 PMCID: PMC6985671 DOI: 10.1111/cpr.12710] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/22/2019] [Accepted: 09/11/2019] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Clinical trials have demonstrated the efficacy of indigo naturalis, a traditional Chinese medicine ingredient, against psoriasis, a skin disease characterized by keratinocyte hyperproliferation and inflammation. The present study investigates the efficacy of tryptanthrin, a bioactive compound in indigo naturalis, against non-melanoma skin cancer (NMSC) and the signalling events involved. METHODS Efficacy of tryptanthrin against NMSC was assessed using DMBA/PMA-induced skin carcinogenesis model in Swiss albino mice. Immunostaining for PCNA and ki-67 was used to mark proliferating cells in tissues. Haematoxylin and eosin staining and toluidine staining were employed to assess inflammation, and TUNEL assay was used to detect apoptosis in tissues. The signalling events were evaluated using Western blot, imunohistochemistry and immunofluorescence staining. MTT assay and clonogenic assay were performed to assess the viability and proliferation of cancer cells, in vitro. RESULTS In mice, topical application of tryptanthrin suppressed skin carcinogenesis. It attenuated inflammation, impeded the proliferation of hair follicle (HF) cells and suppressed the activation of β-catenin, a major driver of HF cell proliferation. Additionally tryptanthrin suppressed the activation of ERK1/2 and p38, both of which promote β-catenin activation and lowered the expression of c-Myc and cyclin-D1. Tryptanthrin suppressed the proliferation of the human NMSC cell line, A431 and abrogated EGF-induced activation of β-catenin and subsequent cytoskeletal rearrangement. CONCLUSION The study demonstrates with molecular evidence that tryptanthrin is an effective suppressor of NMSC.
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Affiliation(s)
- Mohan Shankar G.
- Division of Cancer ResearchRajiv Gandhi Centre for BiotechnologyThiruvananthapuramKeralaIndia
- Research ScholarManipal Academy of Higher EducationManipalKarnatakaIndia
| | - Vijai V. Alex
- Division of Cancer ResearchRajiv Gandhi Centre for BiotechnologyThiruvananthapuramKeralaIndia
| | - Amrutha Nisthul A.
- Department of Biotechnology and MicrobiologyKannur UniversityKannurKeralaIndia
| | - Smitha V. Bava
- Department of BiotechnologyUniversity of CalicutCalicutKeralaIndia
| | - Sankar Sundaram
- Department of PathologyGovernment Medical CollegeKottayamKeralaIndia
| | - Archana P. Retnakumari
- Division of Cancer ResearchRajiv Gandhi Centre for BiotechnologyThiruvananthapuramKeralaIndia
| | | | - Ruby John Anto
- Division of Cancer ResearchRajiv Gandhi Centre for BiotechnologyThiruvananthapuramKeralaIndia
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Vijayakurup V, Thulasidasan AT, Shankar G M, Retnakumari AP, Nandan CD, Somaraj J, Antony J, Alex VV, Vinod BS, Liju VB, Sundaram S, Kumar GSV, Anto RJ. Chitosan Encapsulation Enhances the Bioavailability and Tissue Retention of Curcumin and Improves its Efficacy in Preventing B[a]P-induced Lung Carcinogenesis. Cancer Prev Res (Phila) 2019; 12:225-236. [DOI: 10.1158/1940-6207.capr-18-0437] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/08/2019] [Accepted: 02/08/2019] [Indexed: 12/24/2022]
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Thulasidasan AKT, Retnakumari AP, Shankar M, Vijayakurup V, Anwar S, Thankachan S, Pillai KS, Pillai JJ, Nandan CD, Alex VV, Chirayil TJ, Sundaram S, Kumar GSV, Anto RJ. Folic acid conjugation improves the bioavailability and chemosensitizing efficacy of curcumin-encapsulated PLGA-PEG nanoparticles towards paclitaxel chemotherapy. Oncotarget 2017; 8:107374-107389. [PMID: 29296172 PMCID: PMC5746074 DOI: 10.18632/oncotarget.22376] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 10/25/2017] [Indexed: 12/18/2022] Open
Abstract
Nanoencapsulation has emerged as a novel strategy to enhance the pharmacokinetic and therapeutic potential of conventional drugs. Recent studies from our lab have established the efficacy of curcumin in sensitizing cervical cancer cells and breast cancer cells towards paclitaxel and 5-FU chemotherapy respectively. Factors that hinder the clinical use of curcumin as a sensitizer or therapeutic agent include its poor bioavailability and retention time. Earlier reports of improvement in bioavailability and retention of drugs upon nanoencapsulation have motivated us in developing various nanoformulations of curcumin, which were found to exhibit significant enhancement in bioavailability and retention time as assessed by our previous in vitro studies. Among the various formulations tested, curcumin-entrapped in PLGA-PEG nanoparticles conjugated to folic acid (PPF-curcumin) displayed maximum cell death. In the present study, we have demonstrated the efficacy of this formulation in augmenting the bioavailability and retention time of curcumin, in vivo, in Swiss albino mice. Further, the acute and chronic toxicity studies proved that the formulation is pharmacologically safe. We have also evaluated its potential in chemosensitizing cervical cancer cells to paclitaxel and have verified the results using cervical cancer xenograft model in NOD-SCID mice. Folic acid conjugation significantly enhanced the efficacy of curcumin in down-regulating various survival signals induced by paclitaxel in cervical cancer cells and have considerably improved its potential in inhibiting the tumor growth of cervical cancer xenografts. The non-toxic nature coupled with improved chemosensitization potential makes PPF-curcumin a promising candidate formulation for clinical trials.
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Affiliation(s)
- Arun Kumar T Thulasidasan
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.,Research Scholar, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Archana P Retnakumari
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Mohan Shankar
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.,Research Scholar, Manipal University, Manipal, Karnataka, India
| | - Vinod Vijayakurup
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Shabna Anwar
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.,Research Scholar, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Sanu Thankachan
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Kavya S Pillai
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Jisha J Pillai
- Division of Chemical Biology-Nano Drug Delivery Systems, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - C Devika Nandan
- Division of Chemical Biology-Nano Drug Delivery Systems, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Vijai V Alex
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Teena Jacob Chirayil
- Division of Chemical Biology-Nano Drug Delivery Systems, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India.,Research Scholar, University of Kerala, Thiruvananthapuram, Kerala, India
| | - Sankar Sundaram
- Department of Pathology, Government Medical College, Kottayam, Kerala, India
| | | | - Ruby John Anto
- Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
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