Latest developments in metal complexes as anticancer agents

2022 ◽  
Vol 452 ◽  
pp. 214307
Author(s):  
Renata Paprocka ◽  
Małgorzata Wiese-Szadkowska ◽  
Sabina Janciauskiene ◽  
Tomasz Kosmalski ◽  
Marcelina Kulik ◽  
...  
2020 ◽  
Vol 26 (41) ◽  
pp. 7452-7475 ◽  
Author(s):  
Marta A. Andrade ◽  
Luísa M.D.R.S. Martins

: The development of safe and effective chemotherapeutic agents is one of the uppermost priorities and challenges of medicinal chemistry and new transition metal complexes are being continuously designed and tested as anticancer agents. Scorpionate ligands have played a great role in coordination chemistry, since their discovery by Trofimenko in the late 1960s, with significant contributions in the fields of catalysis and bioinorganic chemistry. Scorpionate metal complexes have also shown interesting anticancer properties, and herein, the most recent (last decade) and relevant scorpionate complexes reported for application in medicinal chemistry as chemotherapeutic agents are reviewed. The current progress on the anticancer properties of transition metal complexes bearing homo- or hetero- scorpionate ligands, derived from bis- or tris-(pyrazol-1-yl)-borate or -methane moieties is highlighted.


2008 ◽  
Vol 15 (25) ◽  
pp. 2574-2591 ◽  
Author(s):  
Christian Hartinger ◽  
Alexey Nazarov ◽  
Shaheen Ashraf ◽  
Paul Dyson ◽  
Bernhard Keppler

Author(s):  
Pravinkumar Patil ◽  
Sainath Zangade

A series of binary metal complexes [halo, hydroxyl and methoxy sub-stituted bis (2-(E) acryloyl)naphthalen-1-yl)oxy)Cu(II) and Zn(II) (C1-C10)] of Cu2+ and Zn2+ ions derived from bi-coordinated hydroxylated 1,3-diaryl-2- -propene-1-ones were synthesized. The newly synthesized metal complexes were structurally determined by FT-IR, 1H NMR, 13CNMR, ESR spectral, XRD and TGA analysis. The FT-IR and ESR studies demonstrated that interactions between metal ions with ligands occur through carbonyl oxygen and deprotonated hydroxyl oxygen and corresponds to square-planar geometry for all complexes. In-vitro the metal complexes were screened and evaluated for their antimicrobial and cytotoxic activity. The complexes C1 and C4 showed the significant antimicrobial activity while the remaining complexes were showed the moderately antimicrobial activity against the tested pathogens. The complexes were evaluated for cytotoxic activity against the organism Artemia salina. The complexes C2, C3, C4 and C5 were showed the LC50 values as 630.45, 969.99, 921.94 and 918.41 ?M mL-1 respectively. Further complexes were evaluated for anticancer activity against liver cancer cell line (Hep G2) in comparison with 5-fluorouracil standard. The complex C5 showed the significant IC50 value 58.94 ?g mL-1. Therefore the present study is useful to develop the new class of antimicrobial and anticancer agents.


2021 ◽  
Vol 12 (3) ◽  
pp. 3977-3988

Cisplatin-based metal drugs have been widely used clinically as anticancer agents. However, these drugs also harm ordinary tissues because cisplatin kills cancer cells by attacking genomic DNA. Therefore, it has been shown that cisplatin-based metal drugs have some serious side effects that cannot be avoided. In order to replace the target site of genomic DNA, G-quadruplex nucleic acid is considered to be an alternative and attractive target for anticancer agents because G-quadruplex always folds into a parallel topology and is, therefore, more important than DNA. This review discussed the recent advancements in the rational design and the development of metal complexes containing anticancer drugs to interact and stabilize or cleave the G4 structure selectively. Further, we also highlighted the G4-interacting transition metal complexes, interacting modes, and their potentials to serve as anticancer drugs in the medical field. The significance of this survey lies in designing the metallodrugs from the most fundamental characteristic of electronic structural engineering to an increasingly reasonable dimension of bio-science.


INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (11) ◽  
pp. 5-12
Author(s):  
S. R. Pattan ◽  
◽  
S. B Pawar ◽  
S. S. Vetal ◽  
U. D. Gharate ◽  
...  

A significantly rising interest in the design of metal compounds as drugs and diagnostic agents is currently observed in the area of scientific inquiry, appropriately termed medicinal inorganic chemistry. Investigations in this area focus mostly on the speciation of metal species in biological media based on possible interactions of these metal ions with diverse biomolecules, in an effort to contribute to future development of new therapeutics or diagnostic agents. Metallopharmaceuticals used as anticancer agents, metal-mediated antibiotics, antibacterials, antivirals, antiparasitics, antiarthritics, antidiabetics and radio-sensitizing agents appear in therapeutic medicinal inorganic chemistry. The medicinal uses and applications of metals and metal complexes are of increasing clinical and commercial importance.


2017 ◽  
Vol 18 (3) ◽  
pp. 191-194 ◽  
Author(s):  
Slobodan Novokmet ◽  
Isidora Stojic ◽  
Katarina Radonjic ◽  
Maja Savic ◽  
Jovana Jeremic

Abstract Discovery of the metallopharmaceutical cisplatin and its use in antitumour therapy has initiated the rational design and screening of metal-based anticancer agents as potential chemotherapeutics. In addition to the achievements of cisplatin and its therapeutic analogues, there are significant drawbacks to its use: resistance and toxicity. Over the past four decades, numerous transition metal complexes have been synthesized and investigated in vitro and in vivo. The most studied metals among these complexes are platinum and ruthenium. The key features of these investigations is to find novel metal complexes that could potentially exert less toxicity and equal or higher antitumour potency and to overcome other pharmacological deficiencies. Ru complexes have a different mode of action than cisplatin does, some of which are under clinical trials for treating metastatic or cisplatin-resistant tumours. This review consists of the current knowledge, published and unpublished, related to the toxicity of metallopharmaceuticals, and special attention is given to platinum [Pt(II) and Pt(IV)] and ruthenium [Ru(II) and Ru(III)] complexes.


2021 ◽  
Author(s):  
Snežana Jovanović-Stević ◽  
◽  
Jovana Bogojeski ◽  
A. Caković ◽  
B. Petrović

The application of transition metal complexes as chemotherapeutics has been presented throughout the history. Platinum-based drugs are widely used as anticancer agents with a broad range of antitumor activities. The study of the substitution reactions of metal complexes with nitrogen containing biomolecules can help to develop new antitumor drugs with improved characteristics. Kinetics of the substitution reactions of [Pt(caffeine)2Cl2] and [Pd(caffeine)2Cl2] (caffeine = 1,3,7-trimethylxanthine) complexes with biologically important ligands such as 9-methylguanine (9-MetGua) and guanosine-5’-monophosphate (5’-GMP) were studied by UV-Vis spectrophotometry and by stopped-flow technique. Kinetics measurements were performed under the pseudo-first order conditions at 37 °C and pH = 7.2 (25 mM Hepes buffer) in addition of 50 mM NaCl. The obtained results showed that all substitution reactions undergo the two reaction steps giving the [M(caffeine)2(Nu)2] (M = Pd(II) or Pt(II) and Nu = 5′-GMP or 9-MetGua) as the reaction product. Additionally, [Pd(caffeine)2Cl2] complex was more reactive compared to analogue platinum-complex, while 9-MetGua reacted faster than 5’-GMP.


2017 ◽  
Vol 70 (13) ◽  
pp. 2175-2201 ◽  
Author(s):  
Pengpeng Jia ◽  
Ruizhuo Ouyang ◽  
Penghui Cao ◽  
Xiao Tong ◽  
Xia Zhou ◽  
...  

2019 ◽  
Vol 19 (11) ◽  
pp. 913-922 ◽  
Author(s):  
Shadia A. Elsayed ◽  
Entsar A. Saad ◽  
Sahar I. Mostafa

Background: Due to the side effects of clinically approved anticancer drugs there is a great need to explore and develop new metal-based anticancer drug molecules of high efficiency with less or no side effects. Objective: To synthesize new metal complexes of 2-hydrazinobenzothiazole (hbt) and to investigate their potential anticancer characteristics. Methods: New five complexes; [VO(hbt)2SO4].4H2O (1), [Ru(hbt)2Cl3(H2O)] (2), [M(hbt)2Cl2] [M(II) = Pd (3), Pt (4)] and [Ag(hbt)2].NO3 (5) were prepared and their structure was investigated by means of FTIR, 1H NMR, ESI-MS and UV-Vis spectra, elemental and thermal analysis, magnetic and molar conductance measurements. The ligand and its complexes were examined as anticancer agents against Ehrlich ascites carcinoma (EAC) and human cancer cells (hepatocellular carcinoma Hep-G2, mammary gland breast cancer MCF-7 and colorectal carcinoma HCT-116). This feature is further supported by the DNAmetal complexes binding ability. In addition, anti-oxidation activity of the complexes was investigated. Results: Complex (5) shows the highest anticancer activity with IC50 of 5.15, 9.9, 13.1 and 17.7 µg/mL for EAC, HePG-2, MCF-7 and HCT-116, respectively. Complexes (2) and (3) show promising cytotoxicity against EAC and HePG-2 cells with IC50 5.49 and 16.2 µg/mL, respectively. While, complexes (1) and (4) show optimistic cytotoxicity against EAC with IC50 of 9.63 and 11.25 µg/mL, respectively. The order of DNA binding ability of the complexes is (5) > (3) > (2) > (1) > (4). Among the five complexes, complex (5) shows the best anti-oxidation activity. Conclusion: Complex (5) showed the highest DNA binding ability, anti-oxidation and anticancer activities.


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