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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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Nair B, Adithya JK, Chandrababu G, Lakshmi PK, Koshy JJ, Manoj SV, Ambiliraj DB, Vinod BS, Sethi G, Nath LR. Modulation of carcinogenesis with selected GRAS nutraceuticals via Keap1-Nrf2 signaling pathway. Phytother Res 2023; 37:4398-4413. [PMID: 37468211 DOI: 10.1002/ptr.7940] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/16/2023] [Accepted: 06/25/2023] [Indexed: 07/21/2023]
Abstract
Keap1-Nrf2 is a fundamental signaling cascade known to promote or prevent carcinogenesis. Extensive studies identify the key target of modulatory aspects of Keap1-Nrf2 signaling against cancer. Nutraceuticals are those dietary agents with many health benefits that have immense potential for cancer chemoprevention. The nutritional supplements known as nutraceuticals are found to be one of the most promising chemoprevention agents. Upon investigating the dual nature of Nrf2, it became clear that, in addition to shielding normal cells from numerous stresses, Nrf2 may also promote the growth of tumors. In the present review, we performed a systematic analysis of the role of 12 different nutraceuticals like curcumin, sulforaphane, resveratrol, polyunsaturated fatty acids (PUFA) from fish oil, lycopene, soybean, kaempferol, allicin, thymoquinone, quercetin, gingerol, and piperine in modulating the Nrf2/Keap1 signaling mechanism. Among these, 12 Generally Recognized As Safe (GRAS) certified nutraceuticals, sulforaphane is the most extensively studied compound in modulating Keap1-Nrf signaling. Even though there is much evidence at preclinical levels, further high-quality research is still required to validate the potential role of these nutraceuticals in Keap1-Nrf2 modulation.
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Affiliation(s)
- Bhagyalakshmi Nair
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Jayaprakash K Adithya
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
- Department of Pharmaceutics, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Gopika Chandrababu
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - P K Lakshmi
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Joel Joy Koshy
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | | | - D B Ambiliraj
- Department of Chemistry, Sree Narayana College, Chempazhanthy, India
| | | | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lekshmi R Nath
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Kumar AR, Devan AR, Nair B, Vinod BS, Nath LR. Harnessing the immune system against cancer: current immunotherapy approaches and therapeutic targets. Mol Biol Rep 2021; 48:8075-8095. [PMID: 34671902 PMCID: PMC8605995 DOI: 10.1007/s11033-021-06752-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [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: 02/27/2021] [Accepted: 09/15/2021] [Indexed: 02/08/2023]
Abstract
Cancer immunotherapy is a rapidly evolving concept that has been given the tag "fifth pillar" of cancer therapy while radiation therapy, chemotherapy, surgery and targeted therapy remain the other four pillars. This involves the stimulation of the immune system to control tumor growth and it specifically targets the neoplastic cells rather than the normal cells. Conventional chemotherapy has many limitations which include drug resistance, recurrence of cancer and severe adverse effects. Immunology has made major treatment breakthroughs for several cancers such as colorectal cancer, prostate cancer, breast cancer, lung cancer, liver cancer, kidney cancer, stomach cancer, acute lymphoblastic leukaemia etc. Currently, therapeutic strategies harnessing the immune system involve Checkpoint inhibitors, Chimeric antigen receptor T cells (CAR T cells), Monoclonal antibodies, Cancer vaccines, Cytokines, Radio-immunotherapy and Oncolytic virus therapy. The molecular characterization of several tumor antigens (TA) indicates that these TA can be utilized as promising candidates in cancer immunotherapy strategies. Here in this review, we highlight and summarize the different categories of emerging cancer immunotherapies along with the immunologically recognized tumor antigens involved in the tumor microenvironment.
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Affiliation(s)
- Ayana R Kumar
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Aswathy R Devan
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Bhagyalakshmi Nair
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Balachandran S Vinod
- Department of Biochemistry, Sree Narayana College, Kollam, Kerala, 691001, India.
| | - Lekshmi R Nath
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, 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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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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Abstract
This review provides an overview of the clinical relevance of chemosensitization, giving special reference to the phenolic phytochemicals, curcumin, genistein, epigallocatechin gallate, quercetin, emodin, and resveratrol, which are potential candidates due to their ability to regulate multiple survival pathways without inducing toxicity. We also give a brief summary of all the clinical trials related to the important phytochemicals that emerge as chemosensitizers. The mode of action of these phytochemicals in regulating the key players of the death receptor pathway and multidrug resistance proteins is also abridged. Rigorous efforts in identifying novel chemosensitizers and unraveling their molecular mechanism have resulted in some of the promising candidates such as curcumin, genistein, and polyphenon E, which have gone into clinical trials. Even though considerable research has been conducted in identifying the salient molecular players either contributing to drug efflux or inhibiting DNA repair and apoptosis, both of which ultimately lead to the development of chemoresistance, the interdependence of the molecular pathways leading to chemoresistance is still the impeding factor in the success of chemotherapy. Even though clinical trials are going on to evaluate the chemosensitizing efficacy of phytochemicals such as curcumin, genistein, and polyphenon E, recent results indicate that more intense study is required to confirm their clinical efficacy. Current reports also warrant intense investigation about the use of more phytochemicals such as quercetin, emodin, and resveratrol as chemosensitizers, as all of them have been shown to modulate one or more of the key regulators of chemoresistance.
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Affiliation(s)
- Balachandran S Vinod
- Cancer Research Program, Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
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Vinod BS, Antony J, Nair HH, Puliyappadamba VT, Saikia M, Narayanan SS, Bevin A, Anto RJ. Mechanistic evaluation of the signaling events regulating curcumin-mediated chemosensitization of breast cancer cells to 5-fluorouracil. Cell Death Dis 2013; 4:e505. [PMID: 23429291 PMCID: PMC3734809 DOI: 10.1038/cddis.2013.26] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
5-Fluorouracil (5-FU) is the first rationally designed antimetabolite, which achieves its therapeutic efficacy through inhibition of the enzyme thymidylate synthase (TS), which is essential for the synthesis and repair of DNA. However, prolonged exposure to 5-FU induces TS overexpression, which leads to 5-FU resistance in cancer cells. Several studies have identified curcumin as a potent chemosensitizer against chemoresistance induced by various chemotherapeutic drugs. In this study, we report for the first time, with mechanism-based evidences, that curcumin can effectively chemosensitize breast cancer cells to 5-FU, thereby reducing the toxicity and drug resistance. We found that 10 μM 5-FU and 10 μM curcumin induces a synergistic cytotoxic effect in different breast cancer cells, independent of their receptor status, through the enhancement of apoptosis. Curcumin was found to sensitize the breast cancer cells to 5-FU through TS-dependent downregulation of nuclear factor-κB (NF-κB), and this observation was confirmed by silencing TS and inactivating NF-κB, both of which reduced the chemosensitizing efficacy of curcumin. Silencing of TS suppressed 5-FU-induced NF-κB activation, whereas inactivation of NF-κB did not affect 5-FU-induced TS upregulation, confirming that TS is upstream of NF-κB and regulates the activation of NF-κB in 5-FU-induced signaling pathway. Although Akt/PI3kinase and mitogen-activated protein kinase pathways are activated by 5-FU and downregulated by curcumin, they do not have any role in regulating the synergism. As curcumin is a pharmacologically safe and cost-effective compound, its use in combination with 5-FU may improve the therapeutic index of 5-FU, if corroborated by in vivo studies and clinical trials.
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Affiliation(s)
- B S Vinod
- Cancer Research Program, Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India
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Puliyappadamba VT, Cheriyan VT, Thulasidasan AKT, Bava SV, Vinod BS, Prabhu PR, Varghese R, Bevin A, Venugopal S, Anto RJ. Nicotine-induced survival signaling in lung cancer cells is dependent on their p53 status while its down-regulation by curcumin is independent. Mol Cancer 2010; 9:220. [PMID: 20727180 PMCID: PMC2936340 DOI: 10.1186/1476-4598-9-220] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 08/20/2010] [Indexed: 12/23/2022] Open
Abstract
Background Lung cancer is the most lethal cancer and almost 90% of lung cancer is due to cigarette smoking. Even though nicotine, one of the major ingredients of cigarette smoke and the causative agent for addiction, is not a carcinogen by itself, several investigators have shown that nicotine can induce cell proliferation and angiogenesis. We observed that the proliferative index of nicotine is different in the lung cancer cell lines H1299 (p53-/-) and A549 (p53+/+) which indicates that the mode of up-regulation of survival signals by nicotine might be different in cells with and without p53. Results While low concentrations of nicotine induced activation of NF-κB, Akt, Bcl2, MAPKs, AP1 and IAPs in H1299, it failed to induce NF-κB in A549, and compared to H1299, almost 100 times higher concentration of nicotine was required to induce all other survival signals in A549. Transfection of WT-p53 and DN-p53 in H1299 and A549 respectively, reversed the mode of activation of survival signals. Curcumin down-regulated all the survival signals induced by nicotine in both the cells, irrespective of their p53 status. The hypothesis was confirmed when lower concentrations of nicotine induced NF-κB in two more lung cancer cells, Hop-92 and NCI-H522 with mutant p53 status. Silencing of p53 in A549 using siRNA made the cells susceptible to nicotine-induced NF-κB nuclear translocation as in A549 DN-p53 cells. Conclusions The present study reveals a detrimental role of nicotine especially in lung cancer patients with impaired p53 status and identifies curcumin as a potential chemopreventive.
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Affiliation(s)
- Vineshkumar T Puliyappadamba
- Integrated Cancer Research Program, Division of Cancer Research, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
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