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Deng Y, Zhang Y, Chen XH, Li CH. Antibacterial activity evaluation of pleuromutilin derivatives with 4(3H)-quinazolinone scaffold against methicillin-resistant Staphylococcusaureus. Eur J Med Chem 2023; 246:114960. [PMID: 36462445 DOI: 10.1016/j.ejmech.2022.114960] [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: 09/18/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Growing antibiotic resistance is causing a health care crisis, leading to an urgent need for new antibiotics to tackle serious hospital and community infections. Pleuromutilin, a naturally occurring product with moderate antibacterial activity, has a unique structure that has attracted great efforts to modify its scaffold to obtain lead compounds. Herein, we report the synthesis of a series of novel pleuromutilin derivatives with a scaffold of 4(3H)-quinazolinone or its analogues at the C-14 side chain and investigated their in vitro activity against Staphylococcus aureus and Staphylococcus epidermidis as well as Gram-negative bacteria (Escherichia coli and Salmonella enterica subsp. enterica serovar pullorum). Structure-activity relationship (SAR) studies showed that the substituents on the benzene ring of 4(3H)-quinazolinone was not as important as the substituted position to improve antibacterial activity while the substituted groups on the N-3 position of 4(3H)-quinazolinone had strong impact on the efficacy. The replacement of the benzene moiety of 4(3H)-quinazolinone with other rings (pyridine, pyrrole, thiophene, or cyclopentyl) also showed high antibacterial efficacy, meaning the benzene ring was dispensable for exerting powerful antibacterial properties. In vitro pharmacokinetics investigations and cytotoxicity assays indicated that 2-mercapto-4(3H)-quinazolinone scaffold was superior to 2-(piperazin-1-yl)quinazolin-4(3H)-one. Among this series of pleuromutilin analogues, compound 23 with a structure of 2-mercapto-3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one displayed the best in vitro antibacterial activity against MRSA (MIC = 0.063 μg/mL) and low cytotoxicity to RAW 264.7 cells (IC50>100 μM) and was demonstrated to inhibit MRSA effectively in a mouse thigh infection model, outperforming the comparator, tiamulin.
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Affiliation(s)
- Yu Deng
- Institute of Veterinary Sciences & Medicines, Chongqing Academy of Animal Sciences, Rongchang, 402460, China; National Pig Technology Innovation Center, Rongchang, 402460, China
| | - Yang Zhang
- National Pig Technology Innovation Center, Rongchang, 402460, China
| | - Xiao-Hu Chen
- Department of Clinical Laboratory, Rongchang District People's Hospital, Rongchang, 402460, China
| | - Cheng-Hong Li
- Institute of Veterinary Sciences & Medicines, Chongqing Academy of Animal Sciences, Rongchang, 402460, China; National Pig Technology Innovation Center, Rongchang, 402460, China.
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2
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Stary D, Kukułowicz J, Góral I, Baltrukevich H, Barbasevich M, Godyń J, Bajda M. Multilevel virtual screening approach for discovery of thymidine phosphorylase inhibitors as potential anticancer agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Warfield BM, Reigan P. Multifunctional role of thymidine phosphorylase in cancer. Trends Cancer 2022; 8:482-493. [DOI: 10.1016/j.trecan.2022.01.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 11/17/2022]
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4
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Warfield BM, Matheson CJ, McArthur DG, Backos DS, Reigan P. Evaluation of Thymidine Phosphorylase Inhibitors in Glioblastoma and Their Capacity for Temozolomide Potentiation. ACS Chem Neurosci 2021; 12:3477-3486. [PMID: 34472849 DOI: 10.1021/acschemneuro.1c00494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A number of studies have shown high levels of thymidine phosphorylase (TP) expression in glioblastoma (GBM), with trace or undetectable TP levels in normal developed brain tissue. TP catalyzes the reversible phosphorolysis of thymidine to thymine and 2-deoxyribose-1-phosphate, maintaining nucleoside homeostasis for efficient DNA replication and cell division. The TP-mediated catabolism of thymidine is responsible for multiple protumor processes and can support angiogenesis, glycation of proteins, and alternative metabolism. In this study, we examined the effect of TP inhibition in GBM using the known nanomolar TP inhibitors 5-chloro-6-[1-(2'-iminopyrrolidin-1'-yl)methyl]uracil (TPI) and the analogous 6-[(2'-aminoimidazol-1'-yl)methyl]uracils. Although these TP inhibitors did not demonstrate any appreciable cytotoxicity in GBM cell lines as single agents, they did enhance the cytotoxicity of temozolomide (TMZ). This pontetiated action of TMZ by TP inhibition may be due to limiting the availability of thymine for DNA repair and replication. These studies support that TP inhibitors could be used as chemosensitizing agents in GBM to improve the efficacy of TMZ.
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Affiliation(s)
- Becka M. Warfield
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
| | - Christopher J. Matheson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
| | - Debbie G. McArthur
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
| | - Donald S. Backos
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
| | - Philip Reigan
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, Colorado 80045, United States
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Morihiro K, Moriyama Y, Nemoto Y, Osumi H, Okamoto A. anti-syn Unnatural Base Pair Enables Alphabet-Expanded DNA Self-Assembly. J Am Chem Soc 2021; 143:14207-14217. [PMID: 34450012 DOI: 10.1021/jacs.1c05393] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Self-assembly properties and diversity in higher-order structures of DNA enable programmable tools to be used to construct algorithms at the molecular level. However, the utility of DNA-based programmable tools is hampered by the low orthogonality to natural nucleic acids, especially in complex molecular systems. To address this challenge, we report here the orthogonal regulation of DNA self-assembly by using an unnatural base pair (UBP) formation. Our newly designed UBP AnN:SyN is formed in combination with anti and unusual syn glycosidic conformation with high thermal stability and selectivity. Furthermore, AnC worked as a pH-sensitive artificial nucleobase, which forms a strong base pair with cytosine under a weak acidic condition (pH 6.0). The orthogonal AnN:SyN base pair functioned as a trigger for hybridization chain reaction to provide long nicked double-stranded DNA (ca. 1000 base pairs). This work represents the first example of the orthogonal DNA self-assembly that is nonreactive to natural four-letter alphabets DNA trigger and expands the types of programmable tools that work in a complex environment.
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Affiliation(s)
- Kunihiko Morihiro
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuya Moriyama
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yui Nemoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiraki Osumi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Akimitsu Okamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.,Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan
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6
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Mondal S, Mugesh G. Dehalogenation of Halogenated Nucleobases and Nucleosides by Organoselenium Compounds. Chemistry 2019; 25:1773-1780. [DOI: 10.1002/chem.201805112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Santanu Mondal
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
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7
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Matarazzo A, Brow J, Hudson RH. Synthesis and photophysical evaluation of new fluorescent 7-arylethynyl-7-deazaadenosine analogs. CAN J CHEM 2018. [DOI: 10.1139/cjc-2018-0303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Three new fluorescent 7-deaza-2′-deoxyadenosine analogs were synthesized via the Sonogashira cross-coupling reaction of 7-iodo-7-deaza-2′-deoxyadenosine with 1-ethynylpyrene, 2-ethynyl-6-methoxynaphthalene, and 9-ethynylphenanthrene. The spectral properties of these analogs were evaluated in dioxane, EtOH, and H2O to determine their potential for use as environmentally sensitive fluorescent probes. All three analogs displayed large solvatofluorochromicity in H2O, relative to their emission wavelengths in dioxane or EtOH. Moreover, all three analogs exhibited microenvironmental sensitivity of their fluorescence emission intensity, being moderate to high quantum yields in dioxane and EtOH and significantly lower in H2O. Various attempts to perform domino cross-coupling and annuation reactions on 7-deaza-7-alkynyladenine derivatives to form a new fused tricyclic adenine analog were unsuccessful.
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Affiliation(s)
- Augusto Matarazzo
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
| | - Justin Brow
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
| | - Robert H.E. Hudson
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
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Furukawa T, Tabata S, Yamamoto M, Kawahara K, Shinsato Y, Minami K, Shimokawa M, Akiyama SI. Thymidine phosphorylase in cancer aggressiveness and chemoresistance. Pharmacol Res 2018; 132:15-20. [PMID: 29604437 DOI: 10.1016/j.phrs.2018.03.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 03/25/2018] [Accepted: 03/26/2018] [Indexed: 01/30/2023]
Abstract
Thymidine phosphorylase (TP) is a rate-limiting enzyme in thymidine catabolism. TP has several important roles in biological and pharmacological mechanisms; importantly TP acts as an angiogenic factor and one of metabolic enzymes of fluoro-pyrimidine anticancer agents and modifies inflammation. Improving our understanding of the characteristics and functions of TP has led to the development of novel TP-based anticancer therapies. We recently reported that TP-dependent thymidine catabolism contributes to tumour survival in low nutrient conditions and the pathway from thymidine to the glycolysis cascade is affected in the context of physiological and metabolic conditions. In this review, we describe recent advancement in our understanding of TP, with a focus on cancer cell biology and the pharmacology of pyrimidine analogue anticancer agents. This review provides comprehensive understanding of the molecular mechanism of TP function in cancer.
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Affiliation(s)
- Tatsuhiko Furukawa
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan; Center for the Research of Advanced Diagnosis and Therapy of Cancer, Graduate School of Medical and Dental Sciences Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
| | - Sho Tabata
- Institute for Advanced Biosciences, Keio University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan
| | - Masatatsu Yamamoto
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Kohichi Kawahara
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Yoshinari Shinsato
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Kentaro Minami
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Michiko Shimokawa
- Department of Molecular Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan
| | - Shin-Ichi Akiyama
- Clinical Research Center, National Kyushu Cancer Center, 3-1-1 Notame Minami-ku, Fukuoka 811-1395, Japan
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Bou Zerdan R, Cohn P, Puodziukynaite E, Baker MB, Voisin M, Sarun C, Castellano RK. Synthesis, optical properties, and electronic structures of nucleobase-containing π-conjugated oligomers. J Org Chem 2015; 80:1828-40. [PMID: 25581330 DOI: 10.1021/jo502773g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The molecular recognition properties of the nucleobases instruct the formation of complex three-dimensional architectures in natural and synthetic systems; relatively unexplored is their use as building blocks for π-conjugated materials where they might mutually tune electronic and supramolecular structures. Toward this goal, an introductory set (1a-d and 2a-d) of six purine-terminated and two pyrimidine-terminated π-conjugated oligomers has been synthesized and used to develop experimental electronic and photophysical structure-property trends. Unlike 2,2':5',2″-terthiophene (TTT) derivatives 2a-d, intramolecular charge transfer dominates oligomers 1a-d bearing a 4,7-bisthienylbenzothiadiazole (TBT) spacer due to the strong electron-accepting ability of its benzothiadiazole (BTD) ring. The resulting donor-acceptor-donor systems feature lower HOMO-LUMO gaps than the terthiophene-linked nucleobases (ΔE(g) ∼ 1.8 eV vs 2.4 eV based on electrochemical measurements), and the lowest so far for π-conjugated molecules that include nucleobases within the π-framework. Experiments reveal a dependence of photophysical and electronic structure on the nature of the nucleobase and are in good agreement with theoretical calculations performed at the B3LYP/6-31+G** level. Overall, the results show how nucleobase heterocycles can be installed within π-systems to tune optical and electronic properties. Future work will evaluate the consequences of these information-rich components on supramolecular π-conjugated structure.
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Affiliation(s)
- Raghida Bou Zerdan
- Department of Chemistry, University of Florida , P.O. Box 117200, Gainesville, Florida 32611, United States
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Lan Y, Chen Y, Cao X, Zhang J, Wang J, Xu X, Qiu Y, Zhang T, Liu X, Liu BF, Zhang G. Synthesis and biological evaluation of novel sigma-1 receptor antagonists based on pyrimidine scaffold as agents for treating neuropathic pain. J Med Chem 2014; 57:10404-23. [PMID: 25420090 DOI: 10.1021/jm501207r] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The discovery and synthesis of a new series of pyrimidines as potent sigma-1 receptor (σ1R) antagonists, associated with pharmacological antineuropathic pain activity, are the focus of this article. The new compounds were evaluated in vitro in σ-1 and σ-2 receptor binding assays. The nature of the pyrimidine scaffold was crucial for activity, and a basic amine was shown to be necessary according to the known pharmacophoric model. The most promising derivative was 5-chloro-2-(4-chlorophenyl)-4-methyl-6-(3-(piperidin-1-yl)propoxy)pyrimidine (137), which exhibited a high binding affinity to σ1R receptor (Ki σ1 = 1.06 nM) and good σ-1/2 selectivity (1344-fold). In in vivo tests, compound 137 exerted dose-dependent antinociceptive effects in mice formalin model and rats CCI models of neuropathic pain. In addition, no motor impairments were found in rotarod tests; acceptable pharmacokinetic properties were also noted. These data suggest compound 137 may constitute a novel class of drugs for the treatment of neuropathic pain.
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Affiliation(s)
- Yu Lan
- Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan 430074, China
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Sun J, Dou Y, Ding H, Yang R, Sun Q, Xiao Q. First total synthesis of a naturally occurring iodinated 5'-deoxyxylofuranosyl marine nucleoside. Mar Drugs 2012; 10:881-889. [PMID: 22690148 PMCID: PMC3366680 DOI: 10.3390/md10040881] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 03/16/2012] [Accepted: 03/24/2012] [Indexed: 12/15/2022] Open
Abstract
4-Amino-7-(5'-deoxy-β-D-xylofuranosyl)-5-iodo-pyrrolo[2,3-d]pyrimidine 1, an unusual naturally occurring marine nucleoside isolated from an ascidan, Diplosoma sp., was synthesized from D-xylose in seven steps with 28% overall yield on 10 g scale. The key step was Vorbrüggen glycosylation of 5-iodo-pyrrolo[2,3-d]pyrimidine with 5-deoxy-1,2-O-diacetyl-3-O-benzoyl-D-xylofuranose. Its absolute configuration was confirmed.
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Affiliation(s)
| | | | | | | | | | - Qiang Xiao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science Technology Normal University, Nanchang 330013, China; (J.S.); (Y.D.); (H.D.); (R.Y.); (Q.S.)
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12
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Biologically important nucleosides: modern trends in biotechnology and application. MENDELEEV COMMUNICATIONS 2011. [DOI: 10.1016/j.mencom.2011.03.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Bronckaers A, Gago F, Balzarini J, Liekens S. The dual role of thymidine phosphorylase in cancer development and chemotherapy. Med Res Rev 2009; 29:903-53. [PMID: 19434693 PMCID: PMC7168469 DOI: 10.1002/med.20159] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Thymidine phosphorylase (TP), also known as "platelet-derived endothelial cell growth factor" (PD-ECGF), is an enzyme, which is upregulated in a wide variety of solid tumors including breast and colorectal cancers. TP promotes tumor growth and metastasis by preventing apoptosis and inducing angiogenesis. Elevated levels of TP are associated with tumor aggressiveness and poor prognosis. Therefore, TP inhibitors are synthesized in an attempt to prevent tumor angiogenesis and metastasis. TP is also indispensable for the activation of the extensively used 5-fluorouracil prodrug capecitabine, which is clinically used for the treatment of colon and breast cancer. Clinical trials that combine capecitabine with TP-inducing therapies (such as taxanes or radiotherapy) suggest that increasing TP expression is an adequate strategy to enhance the antitumoral efficacy of capecitabine. Thus, TP plays a dual role in cancer development and therapy: on the one hand, TP inhibitors can abrogate the tumorigenic and metastatic properties of TP; on the other, TP activity is necessary for the activation of several chemotherapeutic drugs. This duality illustrates the complexity of the role of TP in tumor progression and in the clinical response to fluoropyrimidine-based chemotherapy.
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Affiliation(s)
| | - Federico Gago
- Departamento de Farmacología, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Jan Balzarini
- Rega Institute for Medical Research, K.U.Leuven, B‐3000 Leuven, Belgium
| | - Sandra Liekens
- Rega Institute for Medical Research, K.U.Leuven, B‐3000 Leuven, Belgium
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Birck M, Clinch K, Gainsford G, Schramm V, Tyler P. Syntheses of 5-Chlorouracils/Thymines with 1-[Phosphono(Methyl/Difluoromethyl)]-1,2-Unsaturated-Moiety-Substituted Methyl Groups at N(1) and Human Thymidine Phosphorylase Inhibitory Activity. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200900003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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