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Yeon Kim S, Tang M, Lu T, Chih SY, Li W. Ferroptosis in glioma therapy: advancements in sensitizing strategies and the complex tumor-promoting roles. Brain Res 2024; 1840:149045. [PMID: 38821335 PMCID: PMC11323215 DOI: 10.1016/j.brainres.2024.149045] [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: 02/27/2024] [Revised: 05/03/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Ferroptosis, an iron-dependent form of non-apoptotic regulated cell death, is induced by the accumulation of lipid peroxides on cellular membranes. Over the past decade, ferroptosis has emerged as a crucial process implicated in various physiological and pathological systems. Positioned as an alternative modality of cell death, ferroptosis holds promise for eliminating cancer cells that have developed resistance to apoptosis induced by conventional therapeutics. This has led to a growing interest in leveraging ferroptosis for cancer therapy across diverse malignancies. Gliomas are tumors arising from glial or precursor cells, with glioblastoma (GBM) being the most common malignant primary brain tumor that is associated with a dismal prognosis. This review provides a summary of recent advancements in the exploration of ferroptosis-sensitizing methods, with a specific focus on their potential application in enhancing the treatment of gliomas. In addition to summarizing the therapeutic potential, this review also discusses the intricate interplay of ferroptosis and its potential tumor-promoting roles within gliomas. Recognizing these dual roles is essential, as they could potentially complicate the therapeutic benefits of ferroptosis. Exploring strategies aimed at circumventing these tumor-promoting roles could enhance the overall therapeutic efficacy of ferroptosis in the context of glioma treatment.
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Affiliation(s)
- Soo Yeon Kim
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Miaolu Tang
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Tong Lu
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA
| | - Stephen Y Chih
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA; Medical Scientist Training Program, Penn State College of Medicine, Hershey, PA, USA
| | - Wei Li
- Division of Hematology and Oncology, Department of Pediatrics, Penn State College of Medicine, Hershey, PA, USA; Penn State Cancer Institute, Penn State College of Medicine, Hershey, PA, USA; Department of Biochemistry and Molecular Biology, Penn State College of Medicine, Hershey, PA, USA.
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2
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Sviyazov SV, Burueva DB, Chukanov NV, Razumov IA, Chekmenev EY, Salnikov OG, Koptyug IV. 15N Hyperpolarization of Metronidazole Antibiotic in Aqueous Media Using Phase-Separated Signal Amplification by Reversible Exchange with Parahydrogen. J Phys Chem Lett 2024; 15:5382-5389. [PMID: 38738984 PMCID: PMC11151165 DOI: 10.1021/acs.jpclett.4c00875] [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] [Indexed: 05/14/2024]
Abstract
Metronidazole is a prospective hyperpolarized MRI contrast agent with potential hypoxia sensing utility for applications in cancer, stroke, neurodegenerative diseases, etc. We demonstrate a pilot procedure for production of ∼30 mM hyperpolarized [15N3]metronidazole in aqueous media by using a phase-separated SABRE-SHEATH hyperpolarization method, with nitrogen-15 polarization exceeding 2.2% on all three 15N sites achieved in less than 2 min. The 15N polarization T1 of ∼12 min is reported for the 15NO2 group at the clinically relevant field of 1.4 T in the aqueous phase, demonstrating a remarkably long lifetime of the hyperpolarized state. The produced aqueous solution of [15N3]metronidazole that contained only ∼100 μM of residual Ir was deemed biocompatible via validation through the MTT colorimetric test for assessing cell metabolic activity using human embryotic kidney HEK293T cells. This low-cost and ultrafast hyperpolarization procedure represents a major advance for the production of a biocompatible HP [15N3]metronidazole (and potentially other hyperpolarized drugs) formulation for MRI sensing applications.
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Affiliation(s)
- Sergey V. Sviyazov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Dudari B. Burueva
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
| | - Nikita V. Chukanov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Ivan A. Razumov
- Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
- Institute of Cytology and Genetics SB RAS, 10 Lavrentiev Ave., Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
| | - Oleg G. Salnikov
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
| | - Igor V. Koptyug
- International Tomography Center SB RAS, 3A Institutskaya St., Novosibirsk 630090, Russia
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Crișan G, Stan Ș, Chiș V. Exploring Geometrical, Electronic and Spectroscopic Properties of 2-Nitroimidazole-Based Radiopharmaceuticals via Computational Chemistry Methods. Molecules 2024; 29:1505. [PMID: 38611785 PMCID: PMC11013577 DOI: 10.3390/molecules29071505] [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: 02/14/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Tumor hypoxia plays an important role in the clinical management and treatment planning of various cancers. The use of 2-nitroimidazole-based radiopharmaceuticals has been the most successful for positron emission tomography (PET) and single photon emission computed tomography (SPECT) imaging probes, offering noninvasive means to assess tumor hypoxia. In this study we performed detailed computational investigations of the most used compounds for PET imaging, focusing on those derived from 2-nitroimidazole: fluoromisonidazole (FMISO), fluoroazomycin arabinoside (FAZA), fluoroetanidazole (FETA), fluoroerythronitroimidazole (FETNIM) and 2-(2-nitroimidazol-1-yl)-N-(2,2,3,3,3-pentafluoropropyl)acetamide (EF5). Conformational analysis, structural parameters, vibrational IR and Raman properties (within both harmonic and anharmonic approximations), as well as the NMR shielding tensors and spin-spin coupling constants were obtained by density functional theory (DFT) calculations and then correlated with experimental findings, where available. Furthermore, time-dependent DFT computations reveal insight into the excited states of the compounds. Our results predict a significant change in the conformational landscape of most of the investigated compounds when transitioning from the gas phase to aqueous solution. According to computational data, the 2-nitroimidazole moiety determines to a large extent the spectroscopic properties of its derivatives. Due to the limited structural information available in the current literature for the investigated compounds, the findings presented herein deepen the current understanding of the electronic structures of these five radiopharmaceuticals.
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Affiliation(s)
- George Crișan
- Faculty of Physics, Babeș-Bolyai University, Str. M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (G.C.); (Ș.S.)
- Department of Nuclear Medicine, County Clinical Hospital, Clinicilor 3-5, RO-400006 Cluj-Napoca, Romania
| | - Ștefan Stan
- Faculty of Physics, Babeș-Bolyai University, Str. M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (G.C.); (Ș.S.)
| | - Vasile Chiș
- Faculty of Physics, Babeș-Bolyai University, Str. M. Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania; (G.C.); (Ș.S.)
- Institute for Research, Development and Innovation in Applied Natural Sciences, Babeș-Bolyai University, Str. Fântânele 30, RO-400327 Cluj-Napoca, Romania
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4
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Pihlava L, Svensson PHW, Kukk E, Kooser K, De Santis E, Tõnisoo A, Käämbre T, André T, Akiyama T, Hessenthaler L, Giehr F, Björneholm O, Caleman C, Berholts M. Shell-dependent photofragmentation dynamics of a heavy-atom-containing bifunctional nitroimidazole radiosensitizer. Phys Chem Chem Phys 2024; 26:8879-8890. [PMID: 38426309 DOI: 10.1039/d4cp00367e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Radiation therapy uses ionizing radiation to break chemical bonds in cancer cells, thereby causing DNA damage and leading to cell death. The therapeutic effectiveness can be further increased by making the tumor cells more sensitive to radiation. Here, we investigate the role of the initial halogen atom core hole on the photofragmentation dynamics of 2-bromo-5-iodo-4-nitroimidazole, a potential bifunctional radiosensitizer. Bromine and iodine atoms were included in the molecule to increase the photoionization cross-section of the radiosensitizer at higher photon energies. The fragmentation dynamics of the molecule was studied experimentally in the gas phase using photoelectron-photoion-photoion coincidence spectroscopy and computationally using Born-Oppenheimer molecular dynamics. We observed significant changes between shallow core (I 4d, Br 3d) and deep core (I 3d) ionization in fragment formation and their kinetic energies. Despite the fact, that the ions ejected after deep core ionization have higher kinetic energies, we show that in a cellular environment, the ion spread is not much larger, keeping the damage well-localized.
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Affiliation(s)
- Lassi Pihlava
- Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland.
| | - Pamela H W Svensson
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Edwin Kukk
- Department of Physics and Astronomy, University of Turku, FI-20014 Turku, Finland.
| | - Kuno Kooser
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Emiliano De Santis
- Department of Chemistry - BMC, University of Uppsala, SE-75123 Uppsala, Sweden
| | - Arvo Tõnisoo
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Tanel Käämbre
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
| | - Tomas André
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Tomoko Akiyama
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Lisa Hessenthaler
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Flavia Giehr
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Olle Björneholm
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
| | - Carl Caleman
- Department of Physics and Astronomy, University of Uppsala, SE-75120 Uppsala, Sweden
- Center for Free-Electron Laser Science, DESY, DE-22607 Hamburg, Germany
| | - Marta Berholts
- Institute of Physics, University of Tartu, W. Ostwald 1, EST-50411, Tartu, Estonia.
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Son S, Elkamhawy A, Gul AR, Al-Karmalawy AA, Alnajjar R, Abdeen A, Ibrahim SF, Alshammari SO, Alshammari QA, Choi WJ, Park TJ, Lee K. Development of new TAK-285 derivatives as potent EGFR/HER2 inhibitors possessing antiproliferative effects against 22RV1 and PC3 prostate carcinoma cell lines. J Enzyme Inhib Med Chem 2023; 38:2202358. [PMID: 37096560 PMCID: PMC10132233 DOI: 10.1080/14756366.2023.2202358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) protein tyrosine kinases co-expressed in various cancers such as ovarian, breast, colon, and prostate subtypes. Herein, new TAK-285 derivatives (9a-h) were synthesised, characterised, and biologically evaluated as dual EGFR/HER2 inhibitors. Compound 9f exhibited IC50 values of 2.3 nM over EGFR and 234 nM over HER2, which is 38-fold of staurosporine and 10-fold of TAK-285 over EGFR. Compound 9f also showed high selectivity profile when tested over a small kinase panel. Compounds 9a-h showed IC50 values in the range of 1.0-7.3 nM and 0.8-2.8 nM against PC3 and 22RV1 prostate carcinoma cell lines, respectively. Cell cycle analysis, apoptotic induction, molecular docking, dynamics, and MM-GBSA studies confirmed the plausible mechanism(s) of compound 9f as a potent EGFR/HER2 dual inhibitor with an effective antiproliferative action against prostate carcinoma.
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Affiliation(s)
- Seohyun Son
- College of Pharmacy, BK21 FOUR Team and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang, Republic of Korea
| | - Ahmed Elkamhawy
- College of Pharmacy, BK21 FOUR Team and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang, Republic of Korea
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Anam Rana Gul
- Department of Chemistry, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, Seoul, Republic of Korea
| | - Ahmed A Al-Karmalawy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Radwan Alnajjar
- Department of Chemistry, Faculty of Science, University of Benghazi, Benghazi, Libya
- Faculty of Pharmacy, Libyan International Medical University, Benghazi, Libya
- Department of Chemistry, University of Cape Town, Rondebosch, South Africa
| | - Ahmed Abdeen
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Samah F Ibrahim
- Department of Clinical Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Saud O Alshammari
- Department of Plant Chemistry and Natural Products, Faculty of Pharmacy, Northern Border University, Arar, Saudi Arabia
| | - Qamar A Alshammari
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Northern Border University, Arar, Saudi Arabia
| | - Won Jun Choi
- College of Pharmacy, BK21 FOUR Team and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, Seoul, Republic of Korea
| | - Kyeong Lee
- College of Pharmacy, BK21 FOUR Team and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang, Republic of Korea
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6
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He R, Yang P, Liu A, Zhang Y, Chen Y, Chang C, Lu B. Cascade strategy for glucose oxidase-based synergistic cancer therapy using nanomaterials. J Mater Chem B 2023; 11:9798-9839. [PMID: 37842806 DOI: 10.1039/d3tb01325a] [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: 10/17/2023]
Abstract
Nanomaterial-based cancer therapy faces significant limitations due to the complex nature of the tumor microenvironment (TME). Starvation therapy is an emerging therapeutic approach that targets tumor cell metabolism using glucose oxidase (GOx). Importantly, it can provide a material or environmental foundation for other diverse therapeutic methods by manipulating the properties of the TME, such as acidity, hydrogen peroxide (H2O2) levels, and hypoxia degree. In recent years, this cascade strategy has been extensively applied in nanoplatforms for ongoing synergetic therapy and still holds undeniable potential. However, only a few review articles comprehensively elucidate the rational designs of nanoplatforms for synergetic therapeutic regimens revolving around the conception of the cascade strategy. Therefore, this review focuses on innovative cascade strategies for GOx-based synergetic therapy from representative paradigms to state-of-the-art reports to provide an instructive, comprehensive, and insightful reference for readers. Thereafter, we discuss the remaining challenges and offer a critical perspective on the further advancement of GOx-facilitated cancer treatment toward clinical translation.
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Affiliation(s)
- Ruixuan He
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
| | - Peida Yang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
| | - Aoxue Liu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
| | - Yueli Zhang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
| | - Yuqi Chen
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
| | - Cong Chang
- College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, People's Republic of China.
| | - Bo Lu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
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Mittal S, Mallia MB. Molecular imaging of tumor hypoxia: Evolution of nitroimidazole radiopharmaceuticals and insights for future development. Bioorg Chem 2023; 139:106687. [PMID: 37406518 DOI: 10.1016/j.bioorg.2023.106687] [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: 04/28/2023] [Accepted: 06/15/2023] [Indexed: 07/07/2023]
Abstract
Though growing evidence has been collected in support of the concept of dose escalation based on the molecular level images indicating hypoxic tumor sub-volumes that could be radio-resistant, validation of the concept is still a work in progress. Molecular imaging of tumor hypoxia using radiopharmaceuticals is expected to provide the required input to plan dose escalation through Image Guided Radiation Therapy (IGRT) to kill/control the radio-resistant hypoxic tumor cells. The success of the IGRT, therefore, is heavily dependent on the quality of images obtained using the radiopharmaceutical and the extent to which the image represents the true hypoxic status of the tumor in spite of the heterogeneous nature of tumor hypoxia. Available literature on radiopharmaceuticals for imaging hypoxia is highly skewed in favor of nitroimidazole as the pharmacophore given their ability to undergo oxygen dependent reduction in hypoxic cells. In this context, present review on nitroimidazole radiopharmaceuticals would be immensely helpful to the researchers to obtain a birds-eye view on what has been achieved so far and what can be tried differently to obtain a better hypoxia imaging agent. The review also covers various methods of radiolabeling that could be utilized for developing radiotracers for hypoxia targeting applications.
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Affiliation(s)
- Sweety Mittal
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai 400085, India.
| | - Madhava B Mallia
- Radiopharmaceuticals Division, Bhabha Atomic Research Center, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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Wu Q, Hu Y, Yu B, Hu H, Xu FJ. Polysaccharide-based tumor microenvironment-responsive drug delivery systems for cancer therapy. J Control Release 2023; 362:19-43. [PMID: 37579973 DOI: 10.1016/j.jconrel.2023.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/05/2023] [Accepted: 08/11/2023] [Indexed: 08/16/2023]
Abstract
The biochemical indicators of tumor microenvironment (TME) that are different from normal tissues provide the possibility for constructing intelligent drug delivery systems (DDSs). Polysaccharides with good biocompatibility, biodegradability, and unique biological properties are ideal materials for constructing DDSs. Nanogels, micelles, organic-inorganic nanocomposites, hydrogels, and microneedles (MNs) are common polysaccharide-based DDSs. Polysaccharide-based DDSs enable precise control of drug delivery and release processes by incorporating TME-specific biochemical indicators. The classification and design strategies of polysaccharide-based TME-responsive DDSs are comprehensively reviewed. The advantages and challenges of current polysaccharide-based DDSs are summarized and the future directions of development are foreseen. The polysaccharide-based TME-responsive DDSs are expected to provide new strategies and solutions for cancer therapy and make important contributions to the realization of precision medicine.
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Affiliation(s)
- Qimeng Wu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Yang Hu
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bing Yu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China
| | - Hao Hu
- College of Chemistry and Chemical Engineering, College of Materials Science and Engineering, Institute of Biomedical Materials and Engineering, Qingdao University, Qingdao 266071, China.
| | - Fu-Jian Xu
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology), Ministry of Education, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Diaz-Dussan D, Peng YY, Rashed FB, Macdonald D, Weinfeld M, Kumar P, Narain R. Optimized Carbohydrate-Based Nanogel Formulation to Sensitize Hypoxic Tumors. Mol Pharm 2023. [PMID: 37148327 DOI: 10.1021/acs.molpharmaceut.3c00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Solid tumors are often poorly vascularized, which impairs oxygen supply and drug delivery to the cells. This often leads to genetic and translational adaptations that promote tumor progression, invasion, metastasis, and resistance to conventional chemo-/radiotherapy and immunotherapy. A hypoxia-directed nanosensitizer formulation of a hypoxia-activated prodrug (HAP) was developed by encapsulating iodoazomycin arabinofuranoside (IAZA), a 2-nitroimidazole nucleoside-based HAP, in a functionally modified carbohydrate-based nanogel, facilitating delivery and accrual selectively in the hypoxic head and neck and prostate cancer cells. Although IAZA has been reported as a clinically validated hypoxia diagnostic agent, recent studies have pointed to its promising hypoxia-selective anti-tumor properties, which make IAZA an excellent candidate for further exploration as a multimodal theranostic of hypoxic tumors. The nanogels are composed of a galactose-based shell with an inner core of thermoresponsive (di(ethylene glycol) methyl ethyl methacrylate) (DEGMA). Optimization of the nanogels led to high IAZA-loading capacity (≅80-88%) and a slow time-controlled release over 50 h. Furthermore, nanoIAZA (encapsulated IAZA) displayed superior in vitro hypoxia-selective cytotoxicity and radiosensitization in comparison to free IAZA in the head and neck (FaDu) and prostate (PC3) cancer cell lines. The acute systemic toxicity profile of the nanogel (NG1) was studied in immunocompromised mice, indicating no signs of toxicity. Additionally, growth inhibition of subcutaneous FaDu xenograft tumors was observed with nanoIAZA, demonstrating that this nanoformulation offers a significant improvement in tumor regression and overall survival compared to the control.
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Affiliation(s)
- Diana Diaz-Dussan
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada
| | - Yi-Yang Peng
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada
| | - Faisal Bin Rashed
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, T6G 1Z2, Alberta, Canada
| | - Dawn Macdonald
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, T6G 1Z2, Alberta, Canada
| | - Michael Weinfeld
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, T6G 1Z2, Alberta, Canada
| | - Piyush Kumar
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, T6G 1Z2, Alberta, Canada
| | - Ravin Narain
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton T6G 1H9, Alberta, Canada
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Influence of 2-Nitroimidazoles in the Response of FaDu Cells to Ionizing Radiation and Hypoxia/Reoxygenation Stress. Antioxidants (Basel) 2023; 12:antiox12020389. [PMID: 36829948 PMCID: PMC9951954 DOI: 10.3390/antiox12020389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/08/2023] Open
Abstract
Cellular adaptations to hypoxia promote resistance to ionizing radiation (IR). This presents a challenge for treatment of head and neck cancer (HNC) that relies heavily on radiotherapy. Standard radiosensitizers often fail to reach diffusion-restricted hypoxic cells, whereas nitroimidazoles (NIs) [such as iodoazomycin arabinofuranoside (IAZA) and fluoroazomycin arabinofuranoside (FAZA)] can preferentially accumulate in hypoxic tumours. Here, we explored if the hypoxia-selective uptake of IAZA and FAZA could be harnessed to make HNC cells (FaDu) susceptible to radiation therapy. Cellular response to treatment was assessed through clonogenic survival assays and by monitoring DNA damage (immunofluorescence staining of DNA damage markers, γ-H2AX and p-53BP1, and by alkaline comet assay). The effects of reoxygenation were studied using the following assays: estimation of nucleoside incorporation to assess DNA synthesis rates, immunofluorescent imaging of chromatin-associated replication protein A as a marker of replication stress, and quantification of reactive oxygen species (ROS). Both IAZA and FAZA sensitized hypoxic HNC cells to IR, albeit the former is a better radiosensitizer. Radiosensitization by these compounds was restricted only to hypoxic cells, with no visible effects under normoxia. IAZA and FAZA impaired cellular adaptation to reoxygenation; high levels of ROS, reduced DNA synthesis capacity, and signs of replication stress were observed in reoxygenated cells. Overall, our data highlight the therapeutic potentials of IAZA and FAZA for targeting hypoxic HNC cells and provide rationale for future preclinical studies.
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11
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Li Y, Tang K, Zhang X, Pan W, Li N, Tang B. Tumor microenvironment responsive nanocarriers for gene therapy. Chem Commun (Camb) 2022; 58:8754-8765. [PMID: 35880654 DOI: 10.1039/d2cc02759c] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stimuli responsive nanocarriers are important non-viral gene carriers for gene therapy. We discuss the stimulus conditions and then highlight various stimuli responsive nanocarriers in the tumor microenvironment for cancer gene therapy. We hope that this review will inspire readers to develop more effective stimuli responsive nanocarriers for delivering genes.
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Affiliation(s)
- Yanhua Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Kun Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Xia Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Wei Pan
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Na Li
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Institute of Molecular and Nano Science, Shandong Normal University, Jinan 250014, P. R. China.
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