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Synthesis and growth-inhibitory activities of imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamides related to the anti-tumour drug temozolomide, with appended silicon, benzyl and heteromethyl groups at the 3-position (2018)
Journal Article
Cousin, D., Hummersone, M., Bradshaw, T. D., Zhang, J., Moody, C. J., Foreiter, M., …Stevens, M. F. (in press). Synthesis and growth-inhibitory activities of imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamides related to the anti-tumour drug temozolomide, with appended silicon, benzyl and heteromethyl groups at the 3-position. MedChemComm, doi:10.1039/C7MD00554G

A series of 3-(benzyl-substituted)-imidazo[5,1-d]-1,2,3,5-tetrazines (13) and related derivatives with 3-heteromethyl groups has been synthesised and screened for growth-inhibitory activity in vitro against two pairs of glioma cell lines with temozol... Read More about Synthesis and growth-inhibitory activities of imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamides related to the anti-tumour drug temozolomide, with appended silicon, benzyl and heteromethyl groups at the 3-position.

Discovery of a highly active anticancer analogue of cardamonin that acts as an inducer of caspase-dependent apoptosis and modulator of the mTOR pathway (2018)
Journal Article
Khaled bin Break, M., Hossan, M. S., Khooa, Y., Emad Qazzaz, M., Al-Hayali, M., Chow, S. C., …Khoo, T. (2018). Discovery of a highly active anticancer analogue of cardamonin that acts as an inducer of caspase-dependent apoptosis and modulator of the mTOR pathway. Fitoterapia, 125, doi:10.1016/j.fitote.2018.01.006

Nineteen analogues of cardamonin were semi-synthesized and tested against A549 and HK1 cell lines. The analogues were fully characterized via IR and NMR analyses, while compound 19 (a Cu (II) complex of cardamonin) was further characterized via HRMS,... Read More about Discovery of a highly active anticancer analogue of cardamonin that acts as an inducer of caspase-dependent apoptosis and modulator of the mTOR pathway.

Temozolomide analog PMX 465 downregulates MGMT expression in HCT116 colorectal carcinoma cells (2018)
Journal Article
Yang, Z., Wei, D., Liu, F., Liu, J., Wu, X., Stevens, M. F. G., …Zhang, J. (in press). Temozolomide analog PMX 465 downregulates MGMT expression in HCT116 colorectal carcinoma cells. Journal of Cellular Biochemistry, doi:10.1002/jcb.26674

The efficacy of temozolomide (TMZ) treatment for cancers is currently limited by inherent or the development of resistance, particularly, but not exclusively, due to the expression of the DNA repair enzyme O6-methylguanine-DNA methyltransferase (MGMT... Read More about Temozolomide analog PMX 465 downregulates MGMT expression in HCT116 colorectal carcinoma cells.

Stable DHLA–PEG capped PbS quantum dots: from synthesis to near-infrared biomedical imaging (2018)
Journal Article
Zamberlan, F., Turyanska, L., Patanè, A., Liu, Z., Williams, H., Fay, M., …Grabowska, A. (in press). Stable DHLA–PEG capped PbS quantum dots: from synthesis to near-infrared biomedical imaging. Journal of Materials Chemistry B, 6, https://doi.org/10.1039/c7tb02912h

The short shelf-life of water-soluble quantum dots (QDs) due to colloidal instability represents a major drawback to their exploitation. This work examines the colloidal stability of PbS nanoparticles capped with dihydrolipoic acid–polyethylene glyco... Read More about Stable DHLA–PEG capped PbS quantum dots: from synthesis to near-infrared biomedical imaging.

Cellular pharmacology studies of anticancer agents: recommendations from the EORTC-PAMM group (2017)
Journal Article
Perego, P., Hempel, G., Linder, S., Bradshaw, T. D., Larsen, A. K., Peters, G. J., & Phillips, R. M. (in press). Cellular pharmacology studies of anticancer agents: recommendations from the EORTC-PAMM group. Cancer Chemotherapy and Pharmacology, doi:10.1007/s00280-017-3502-7

An increasing number of manuscripts focus on the in vitro evaluation of established and novel anti-tumour agents in experimental models. Whilst the design of such in vitro assays is inherently flexible, some of these studies lack the minimum informat... Read More about Cellular pharmacology studies of anticancer agents: recommendations from the EORTC-PAMM group.

Development of a series of bis-triazoles as G-quadruplex ligands (2017)
Journal Article
Saleh, M., Laughton, C. A., Bradshaw, T. D., & Moody, C. J. (in press). Development of a series of bis-triazoles as G-quadruplex ligands. RSC Advances, 7, https://doi.org/10.1039/c7ra07257k

Maintenance of telomeres – specialized complexes that protect the ends of chromosomes – is provided by the enzyme complex telomerase, which is a key factor that is activated in more than 80% of cancer cells, but absent in most normal cells. Targeting... Read More about Development of a series of bis-triazoles as G-quadruplex ligands.

In vitro antitumor effects of AHR ligands aminoflavone (AFP 464) and benzothiazole (5F 203) in human renal carcinoma cells (2017)
Journal Article
Luzzani, G. A., Callero, M. A., Kuruppu, A. I., Trapani, V., Flumian, C., Todaro, L., …Loaiza Perez, A. I. (in press). In vitro antitumor effects of AHR ligands aminoflavone (AFP 464) and benzothiazole (5F 203) in human renal carcinoma cells. Journal of Cellular Biochemistry, doi:10.1002/jcb.26114

We investigated activity and mechanism of action of two AhR ligand antitumor agents, AFP 464 and 5F 203 on human renal cancer cells, specifically examining their effects on cell cycle progression, apoptosis, and migration. TK-10, SN12C, Caki-1, and A... Read More about In vitro antitumor effects of AHR ligands aminoflavone (AFP 464) and benzothiazole (5F 203) in human renal carcinoma cells.

Jerantinine A induces tumor-specific cell death through modulation of splicing factor 3b subunit 1 (SF3B1) (2017)
Journal Article
Chung, F. F., Tan, P. F. T. M., Raja, V. J., Tan, B., Lim, K., Kam, T., …Leong, C. (2017). Jerantinine A induces tumor-specific cell death through modulation of splicing factor 3b subunit 1 (SF3B1). Scientific Reports, 7(42504), https://doi.org/10.1038/srep42504

Precursor mRNA (pre-mRNA) splicing is catalyzed by a large ribonucleoprotein complex known as the spliceosome. Numerous studies have indicated that aberrant splicing patterns or mutations in spliceosome components, including the splicing factor 3b su... Read More about Jerantinine A induces tumor-specific cell death through modulation of splicing factor 3b subunit 1 (SF3B1).

Design and elaboration of a tractable tricyclic scaffold to synthesize druglike inhibitors of dipeptidyl peptidase-4 (DPP-4), antagonists of the C–C Chemokine Receptor Type 5 (CCR5), and highly potent and selective phosphoinositol-3 Kinase δ (PI3Kδ) inhib (2017)
Journal Article
Schwehm, C., Kellam, B., Garces, A., Hill, S. J., Kindon, N., Bradshaw, T. D., …Stocks, M. (2017). Design and elaboration of a tractable tricyclic scaffold to synthesize druglike inhibitors of dipeptidyl peptidase-4 (DPP-4), antagonists of the C–C Chemokine Receptor Type 5 (CCR5), and highly potent and selective phosphoinositol-3 Kinase δ (PI3Kδ) inhibitors. Journal of Medicinal Chemistry, 60(4), https://doi.org/10.1021/acs.jmedchem.6b01801

A novel molecular scaffold has been synthesized, and its incorporation into new analogues of biologically active molecules across multiple target classes will be discussed. In these studies, we have shown use of the tricyclic scaffold to synthesize p... Read More about Design and elaboration of a tractable tricyclic scaffold to synthesize druglike inhibitors of dipeptidyl peptidase-4 (DPP-4), antagonists of the C–C Chemokine Receptor Type 5 (CCR5), and highly potent and selective phosphoinositol-3 Kinase δ (PI3Kδ) inhib.

Using titanium complexes to defeat cancer: the view from the shoulders of titans (2017)
Journal Article
Cini, M., Bradshaw, T. D., & Woodward, S. (in press). Using titanium complexes to defeat cancer: the view from the shoulders of titans. Chemical Society Reviews, doi:10.1039/C6CS00860G

When the first titanium complex with anticancer activity was identified in the 1970s, it was attractive, based on the presence of the dichloride unit in TiCl2Cp2 (Cp = η-C5H5)2, to assume its mode of biological action was closely aligned with cisplat... Read More about Using titanium complexes to defeat cancer: the view from the shoulders of titans.

Cudraflavone C induces tumor-specific apoptosis in colorectal cancer cells through inhibition of the phosphoinositide 3-kinase (PI3K)-AKT pathway (2017)
Journal Article
Castresana, J. S., Soo, H., Chung, F. F., Lim, K., Yap, V. A., Bradshaw, T. D., …Mai, C. (2017). Cudraflavone C induces tumor-specific apoptosis in colorectal cancer cells through inhibition of the phosphoinositide 3-kinase (PI3K)-AKT pathway. PLoS ONE, 12(1), doi:10.1371/journal.pone.0170551

Cudraflavone C (Cud C) is a naturally-occurring flavonol with reported anti-proliferative activities. However, the mechanisms by which Cud C induced cytotoxicity have yet to be fully elucidated. Here, we investigated the effects of Cud C on cell prol... Read More about Cudraflavone C induces tumor-specific apoptosis in colorectal cancer cells through inhibition of the phosphoinositide 3-kinase (PI3K)-AKT pathway.

Developing a self-healing supramolecular nucleoside hydrogel (2016)
Journal Article
Skilling, K. J., Kellam, B., Ashford, M., Bradshaw, T. D., & Marlow, M. (in press). Developing a self-healing supramolecular nucleoside hydrogel. Soft Matter, doi:10.1039/C6SM01779G

Low molecular weight gelator hydrogels provide a viable alternative to traditional polymer based drug delivery platforms, owing to their tunable stability and in most cases inherent biocompatibility. Here we report the first self-healing nucleoside h... Read More about Developing a self-healing supramolecular nucleoside hydrogel.

Antitumor imidazo[5,1-d]-1,2,3,5-tetrazines: compounds modified at the 3-position overcome resistance in human glioblastoma cell lines (2016)
Journal Article
Cousin, D., Zhang, J., Hummersone, M. G., Matthews, C. S., Frigerio, M., Bradshaw, T., & Stevens, M. F. (2016). Antitumor imidazo[5,1-d]-1,2,3,5-tetrazines: compounds modified at the 3-position overcome resistance in human glioblastoma cell lines. MedChemComm, 7(12), 2332-2343. doi:10.1039/c6md00384b

Synthetic routes to 3-substituted imidazo[5,1-d]-1,2,3,5-tetrazines structurally related to temozolomide were explored. Interaction of 4-diazoimidazole-5-carboxamide with an isocyanate afforded high product yields when the isocyanate was available in... Read More about Antitumor imidazo[5,1-d]-1,2,3,5-tetrazines: compounds modified at the 3-position overcome resistance in human glioblastoma cell lines.

In vitro anticancer properties and biological evaluation of novel natural alkaloid jerantinine B (2015)
Journal Article
Qazzaz, M. E., Raja, V. J., Lim, K., Kam, T., Lee, J. B., Gershkovich, P., & Bradshaw, T. D. (2016). In vitro anticancer properties and biological evaluation of novel natural alkaloid jerantinine B. Cancer Letters, 370(2), doi:10.1016/j.canlet.2015.10.013

Natural products play a pivotal role in medicine especially in the cancer arena. Many drugs that are currently used in cancer chemotherapy originated from or were inspired by nature. Jerantinine B (JB) is one of seven novel Aspidosperma indole alkalo... Read More about In vitro anticancer properties and biological evaluation of novel natural alkaloid jerantinine B.

Asymmetric pentafulvene carbometalation-access to enantiopure titanocene dichlorides of biological relevance (2015)
Journal Article
Cini, M., Bradshaw, T. D., Woodward, S., & Lewis, W. (2015). Asymmetric pentafulvene carbometalation-access to enantiopure titanocene dichlorides of biological relevance. Angewandte Chemie International Edition, 54(47), doi:10.1002/anie.201508034

Unprecedented asymmetric copper-catalyzed addition of ZnEt2 (ZnBu2) to the exocyclic C[DOUBLE BOND]C bond of pentafulvenes C5H4([DOUBLE BOND]CHAr) (Ar=2-MeOPh and related species) results in enantiomerically enriched (up to 93:7 e.r.) cyclopentadieny... Read More about Asymmetric pentafulvene carbometalation-access to enantiopure titanocene dichlorides of biological relevance.

Antitumour benzothiazoles. Part 32: DNA adducts and double strand breaks correlate with activity; synthesis of 5F203 hydrogels for local delivery (2015)
Journal Article
Stone, E. L., Citossi, F., Singh, R., Kaur, B., Gaskell, M., Farmer, P. B., …Bradshaw, T. D. (2015). Antitumour benzothiazoles. Part 32: DNA adducts and double strand breaks correlate with activity; synthesis of 5F203 hydrogels for local delivery. Bioorganic and Medicinal Chemistry, 23(21), 6891-6899. doi:10.1016/j.bmc.2015.09.052

Potent, selective antitumour AhR ligands 5F 203 and GW 610 are bioactivated by CYPs 1A1 and 2W1. Herein we reason that DNA adducts’ generation resulting in lethal DNA double strand breaks (DSBs) underlies benzothiazoles’ activity. Treatment of sensit... Read More about Antitumour benzothiazoles. Part 32: DNA adducts and double strand breaks correlate with activity; synthesis of 5F203 hydrogels for local delivery.

Gelation properties of self-assembling N-acyl modified cytidine derivatives (2014)
Journal Article
Skilling, K. J., Ndungu, A., Kellam, B., Ashford, M., Bradshaw, T. D., & Marlow, M. (in press). Gelation properties of self-assembling N-acyl modified cytidine derivatives. Journal of Materials Chemistry B, 2(47), doi:10.1039/C4TB01375A

In this study we report the synthesis of new cytidine derived gelators possessing acyl chains of different lengths. These low molecular weight gelators were shown to form self-supporting gels at 0.5 % (w/v) in binary systems of aqueous miscible polar... Read More about Gelation properties of self-assembling N-acyl modified cytidine derivatives.

In vitro antitumor mechanism of (E)-N-(2-methoxy-5-(((2,4,6-trimethoxystyryl)sulfonyl)methyl)pyridin-3-yl)methanesulfonamide (2014)
Journal Article
Lu, T., Laughton, C., Wang, S., & Bradshaw, T. (2015). In vitro antitumor mechanism of (E)-N-(2-methoxy-5-(((2,4,6-trimethoxystyryl)sulfonyl)methyl)pyridin-3-yl)methanesulfonamide. Molecular Pharmacology, 87(1), 18-30. doi:10.1124/mol.114.093245

ON01910.Na [sodium (E)-2-(2-methoxy-5-((2,4,6-trimethoxystyrylsulfonyl)methyl)phenylamino)acetate; Rigosertib, Estybon], a styryl benzylsulfone, is a phase III stage anticancer agent. This non-ATP competitive kinase inhibitor has multitargeted activi... Read More about In vitro antitumor mechanism of (E)-N-(2-methoxy-5-(((2,4,6-trimethoxystyryl)sulfonyl)methyl)pyridin-3-yl)methanesulfonamide.


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