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Tudor CA, Iliş M, Secu M, Ferbinteanu M, Cîrcu V. Luminescent heteroleptic copper(I) complexes with phosphine and N-benzoyl thiourea ligands: Synthesis, structure and emission properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115542] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Sequeira D, Baptista PV, Valente R, Piedade MFM, Garcia MH, Morais TS, Fernandes AR. Cu(I) complexes as new antiproliferative agents against sensitive and doxorubicin resistant colorectal cancer cells: synthesis, characterization, and mechanisms of action. Dalton Trans 2021; 50:1845-1865. [PMID: 33470993 DOI: 10.1039/d0dt03566a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cancer is one of the worst health issues worldwide, representing the second leading cause of death. Current chemotherapeutic drugs face some challenges like the acquired resistance of the tumoral cells and low specificity leading to unwanted side effects. There is an urgent need to develop new compounds that may target resistant cells. The synthesis and characterization of two Cu(i) complexes of general formula [Cu(PP)(LL)][BF4], where PP is a phosphane ligand (triphenylphosphine or 1,2-bis(diphenylphosphano) ethane) and LL = is a heteroaromatic bidentate ligand (4,4'-dimethyl-2,2'-bipyridine and 6,3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine). The new compounds were fully characterized by spectroscopic techniques (NMR, FTIR and UV-vis.), elemental analysis (C, H, N and S) and two structures were determined by single X-ray diffraction studies. The antiproliferative potential of the new Cu(i) complexes were studied in tumor (breast adenocarcinoma, ovarian carcinoma and in colorectal carcinoma sensitive and resistant to doxorubicin) and normal (fibroblasts) cell lines. Complexes 1-4 did not show any antiproliferative potential. Amongst the complexes 5-8, complex 8 shows high cytotoxic potential against colorectal cancer sensitive and resistant to doxorubicin and low cytotoxicity towards healthy cells. We show that complexes 5-8 can cleave pDNA and, in particular, the in vitro pDNA cleavage is due to an oxidative mechanism. This oxidative mechanism corroborates the induction of reactive oxygen species (ROS), that triggers HCT116 cell death via apoptosis, as proved by the increased expression of BAX protein relative to BCL-2 protein and the depolarization of mitochondrial membrane potential, and via autophagy. Additionally, complex 8 can block the cell cycle in the G1 phase, also exhibiting a cytostatic potential. Proteomic analysis confirmed the apoptotic, autophagic and cytostatic potential of complex 8, as well as its ability to produce ROS and cause DNA damage. The interference of the complex in folding and protein synthesis and its ability to cause post-translational modifications was also verified. Finally, it was observed that the complex causes a reduction in cellular metabolism. The results herein demonstrated the potential of Cu(i) complexes in targeting doxorubicin sensitive and resistant cells which is positive and must be further explored using in vivo animal models.
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Affiliation(s)
- Diogo Sequeira
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal.
| | - Pedro V Baptista
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal.
| | - Ruben Valente
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal.
| | - M Fátima M Piedade
- DQB-FCUL, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Portugal. and CQE@IST, Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - M Helena Garcia
- DQB-FCUL, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Portugal. and CQE@FCUL, Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Tânia S Morais
- DQB-FCUL, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Portugal. and CQE@FCUL, Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Portugal
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal.
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Khan SI, Ahmad S, Khan IA, Badshah A, Rauf MK, Putejo JA, Siddiq MN, Kausar S, Altaf AA. Mononuclear copper( i) complexes of triphenylphosphine and N, N′-disubstituted thioureas as potential DNA binding chemotherapeutics. NEW J CHEM 2021. [DOI: 10.1039/d0nj06182d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, nine copper(i) bromide complexes with N,N′-disubstituted thioureas and triphenylphosphine, were synthesized via a simple solution-based reaction at 60 °C and characterized, selected complexes were screened for DNA binding.
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Affiliation(s)
- Syed Ishtiaq Khan
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
- Chemistry of Interfaces
| | - Sajjad Ahmad
- Department of Health and Biological Sciences
- Abasyn University
- Peshawar 25000
- Pakistan
- Geoscience Advance Research Laboratories
| | - Inayat Ali Khan
- Department of Health and Biological Sciences
- Abasyn University
- Peshawar 25000
- Pakistan
- Geoscience Advance Research Laboratories
| | - Amin Badshah
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | | | | | | | - Samia Kausar
- Department of Chemistry
- University of Gujrat
- Gujrat 50700
- Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry
- University of Okara
- Okara-56300
- Pakistan
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Choi SJ, Yoon B, Lin S, Swager TM. Functional Single-Walled Carbon Nanotubes for Anion Sensing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:28375-28382. [PMID: 32519847 DOI: 10.1021/acsami.0c03813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We report an anion-sensing platform wherein conductance changes are triggered by chemical interactions between selectors and anions. The selector design incorporates both a cationic moiety (i.e., pyridinium) and a thiourea-based dual-hydrogen-bond donor. Anion binding by a model selector (2) was studied using 1H NMR and UV-vis titrations, which reveal a binding strength toward acetate ions (AcO-) followed by Cl- > Br- > NO3-. These studies reveal that selector 2 is deprotonated upon addition of AcO-, whereas it undergoes hydrogen bonding associated with Cl-, Br-, and NO3-. The cationic pyridinium moiety improves anion binding affinity by lowering the pKa value of selector 2 and enhancing the hydrogen-bond donor capability as confirmed by spectroscopic titrations and DFT calculations. The selector is covalently attached to poly(4-vinylpyridine) (P4VP), which wraps single-walled carbon nanotubes (SWCNTs) (i.e., P4VP-2-SWCNT) to transduce an electrical signal. As a result, continuous anion sensing was achieved with high sensitivity represented by a normalized resistance change of 101.9 ± 10.3% toward 16.7 mM AcO-, whereas negligible sensitivity was observed toward Cl-, Br-, and NO3-. The sensitivity transition was attributed to the internal charge transfer of 2 by deprotonation of the thiourea proton upon addition of AcO-.
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Affiliation(s)
- Seon-Jin Choi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Bora Yoon
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Optical and Electromagnetic Materials Team, U.S. Army Combat Capabilities Development Command-Soldier Center (CCDC-SC), Natick, Massachusetts 01760, United States
| | - Sibo Lin
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Timothy M Swager
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Khan E, Khan S, Gul Z, Muhammad M. Medicinal Importance, Coordination Chemistry with Selected Metals (Cu, Ag, Au) and Chemosensing of Thiourea Derivatives. A Review. Crit Rev Anal Chem 2020; 51:812-834. [DOI: 10.1080/10408347.2020.1777523] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ezzat Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Sikandar Khan
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Zarif Gul
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
| | - Mian Muhammad
- Department of Chemistry, University of Malakand, Chakdara, Khyber Pakhtunkhwa, Pakistan
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Hussain S, Imtiaz-ud-Din, Raheel A, Hussain S, Tahir MN, Hussain I. New bioactive Cu(I) thiourea derivatives with triphenylphosphine; synthesis, structure and molecular docking studies. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1771558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shazia Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Imtiaz-ud-Din
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ahmad Raheel
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Shabeeb Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | | | - Irfan Hussain
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
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Lapasam A, Kollipara MR. A survey of crystal structures and biological activities of platinum group metal complexes containing N-acylthiourea ligands. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1764956] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Agreeda Lapasam
- Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| | - Mohan Rao Kollipara
- Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
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Khan SI, Ahmad S, Altaf AA, Rauf MK, Badshah A, Azam SS, Tahir MN. Heteroleptic copper(i) halides with triphenylphosphine and acetylthiourea: synthesis, characterization and biological studies (experimental and molecular docking). NEW J CHEM 2019. [DOI: 10.1039/c9nj03005k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This manuscript presents the synthesis of acetylthiourea and triphenylphosphene based hetroleptic copper(i) halides and their biological activities. H-bonding and hydrophobic pi-interactions were found important for their biological activities.
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Affiliation(s)
- Syed Ishtiaq Khan
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
- Geoscience Advance Research Laboratories
| | - Sajjad Ahmad
- Computational Biology Lab
- National Center for Bioinformatics
- Quaid-i-Azam University
- Islamabad
- Pakistan
| | - Ataf Ali Altaf
- Department of Chemistry
- University of Gujrat
- Gujrat-50700
- Pakistan
| | | | - Amin Badshah
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Syed Sikander Azam
- Geoscience Advance Research Laboratories
- Geological Survey of Pakistan
- Islamabad
- Pakistan
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