scholarly journals Potato Peels Mediated Synthesis of Cu(II)-nanoparticles from Tyrosinase Reacted with bis-(N-aminoethylethanolamine) (Tyr-Cu(II)-AEEA NPs) and Their Cytotoxicity against Michigan Cancer Foundation-7 Breast Cancer Cell Line

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6665
Author(s):  
Akbar Idhayadhulla ◽  
Aseer Manilal ◽  
Anis Ahamed ◽  
Saud Alarifi ◽  
Gurusamy Raman

The synthesis of nanoparticles is most important in the context of cancer therapy, particularly copper nanoparticles, which are widely used. In this work, copper(II)-tyrosinase was isolated from potato peel powder. Copper nanoparticles (Tyr-Cu(II)-AEEA NPs) were synthesized via the reaction of tyrosinase with N-aminoethylethanolamine to produce Cu(II)-NPs and these were characterized by means of FT-IR, UV-Spectroscopy, XRD, SEM, TEM and a particle size analyzer. These Tyr-Cu(II)-AEEA NPs were tested as anticancer agents against MCF-7 breast cancer cells. Fluorescence microscopy and DNA fragmentation were also performed, which revealed the inhibiting potentials of Cu(II)-AEEA NPs and consequent cell death; Tyr-Cu(II)-AEEA NPs show potential cytotoxicity activity and this nano material could be contemplated as an anticancer medicament in future investigations.

2021 ◽  
Vol 12 (1) ◽  
pp. 304-325

The motivation of the current study is to develop a strategy providing targeted and effective photodynamic therapy (PDT) on breast cancer cells by eliminating the limitations of PDT. For this purpose, a disulfide bridged phthalocyanine with favorable wavelength absorbance that is activatable in cancer cells was synthesized and encapsulated in liposome nanoparticles. The synthesized molecule was characterized using Fourier transform-infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, Matrix-Assisted Laser Desorption/Ionization Time of Flight (MALDI-TOF) Mass Spectrometry, Ultraviolet-visible (UV-Vis) spectrophotometry, and particle size analyzer; and the nano-formulation was tested on MCF-7 breast cancer cell line using MTT assay, fluorescence microscopy, and flow cytometry. The results have illustrated that the synthesized disulfide bridged phthalocyanine has a therapeutically active wavelength absorbance value (685 nm), the liposome nanoparticles with the favorable characteristics (average size of 167.6 nm and polydispersity index (PDI) of 0.108) containing the synthesized disulfide bridged phthalocyanine have low dark toxicity, and significant light toxicity (P < 0.001 vs. dark toxicity) characterized with significant apoptosis (p < 0.05 vs. control group). Thus, for further investigations, these results suggest the great potential of the nano-formulation towards targeted and effective PDT on breast cancer cells.


Biomolecules ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1220
Author(s):  
Ashley L. Hilchie ◽  
Erin E. Gill ◽  
Melanie R. Power Coombs ◽  
Reza Falsafi ◽  
Robert E. W. Hancock ◽  
...  

Direct-acting anticancer (DAA) peptides are cytolytic peptides that show promise as novel anticancer agents. DAA peptides bind to anionic molecules that are abundant on cancer cells relative to normal healthy cells, which results in preferential killing of cancer cells. Due to the mechanism by which DAA peptides kill cancer cells, it was thought that resistance would be difficult to achieve. Here, we describe the generation and characterization of two MDA-MB-231 breast cancer cell-line variants with reduced susceptibility to pleurocidin-family and mastoparan DAA peptides. Peptide resistance correlated with deficiencies in peptide binding to cell-surface structures, suggesting that resistance was due to altered composition of the cell membrane. Peptide-resistant MDA-MB-231 cells were phenotypically distinct yet remained susceptible to chemotherapy. Surprisingly, neither of the peptide-resistant breast cancer cell lines was able to establish tumors in immune-deficient mice. Histological analysis and RNA sequencing suggested that tumorigenicity was impacted by alternations in angiogenesis and extracellular matrix composition in the peptide-resistant MDA-MB-231 variants. Collectively, these data further support the therapeutic potential of DAA peptides as adjunctive treatments for cancer.


2005 ◽  
Vol 83 (12) ◽  
pp. 2052-2059 ◽  
Author(s):  
Johanna M Blacquiere ◽  
Oana Sicora ◽  
Christopher M Vogels ◽  
Miroslava Čuperlović-Culf ◽  
Andreas Decken ◽  
...  

The addition of formylphenylboronic acid derivatives to urea and ethyl acetoacetate proceeds in the absence of an additional Lewis acid catalyst to give the corresponding dihydropyrimidinones (Biginelli products) in good yields. Novel boron-containing dihydropyrimidinones have been investigated for their ability to act as anticancer agents against the breast cancer cell line MCF7.Key words: anticancer, Biginelli compounds, boronic acids, breast cancer, dihydropyrimidinones.


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.


2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Mikhail V. Pugachev ◽  
Thang T. N. Nguyen ◽  
Timur M. Bulatov ◽  
Roman S. Pavelyev ◽  
Alfia G. Iksanova ◽  
...  

A series of trans-6-phenylethenyl substituted pyridoxine derivatives, novel bioisosteric analogs of drugs based on trans-stilbene scaffold, were synthesized using the Wittig reaction of a bis-triphenylphosphonium pyridoxine derivative with various aromatic aldehydes. Two compounds demonstrated high activity against the estrogen-dependent MCF-7 (breast cancer) cell line with IC50 in the range of 1.9–7.9 µM and very good selectivity for other studied normal and tumor cells, including the estrogen receptor negative MDA-MB-231 breast cancer cells. The active compounds possessed an intense blue fluorescence, and this feature allowed us to effectively visualize them in cytoplasm and in nucleus. The obtained results make the described chemotype a promising starting point for the development of new anticancer agents for the therapy of estrogen-dependent malignancies.


Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1889
Author(s):  
Sonia Trombino ◽  
Federica Curcio ◽  
Teresa Poerio ◽  
Michele Pellegrino ◽  
Rossella Russo ◽  
...  

The aim of this work is the design, preparation and characterization of membranes based on cyclosporine A (CsA) and chitosan carboxylate (CC) to be used as an implantable subcutaneous medical device for a prolonged therapeutic effect in the treatment of breast cancer. The choice to use CsA is due to literature data that have demonstrated its possible antitumor activity on different types of neoplastic cells. To this end, CsA was bound to CC through an amidation reaction to obtain a prodrug to be dispersed in a chitosan-based polymeric membrane. The reaction intermediates and the final product were characterized by Fourier transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (1H-NMR). Membranes were analyzed by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The data obtained showed the effective formation of the amide bond between CsA and CC and the complete dispersion of CsA inside the polymeric membrane. Furthermore, preliminary tests, conducted on MDA-MB-231, a type of breast cancer cell line, have shown a high reduction in the proliferation of cancer cells. These results indicate the possibility of using the obtained membranes as an interesting strategy for the release of cyclosporin-A in breast cancer patients.


2021 ◽  
Vol 66 (1) ◽  
Author(s):  
Reda El-Mernissi ◽  
Khalil El Khatabi ◽  
Ayoub Khaldan ◽  
Larbi ElMchichi ◽  
Md Shahinozzaman ◽  
...  

Abstract. Tubulin plays an indispensable role in regulating various important cellular processes. Recently, it is known as a hopeful therapeutic target for the rapid division of cancer cells. Novel series of 2-oxoquinoline arylaminothiazole derivatives have been recently identified as promising tubulin inhibitors with potent cytotoxicity activity against HeLa cancer cell line. In this study, a 3D-QSAR approach by using CoMFA and CoMSIA techniques was applied to the reported derivatives to understand their pharmacological essentiality contributing to the tubulin inhibition activity and selectivity. The optimum CoMFA and CoMSIA models were found to have significant statistical reliability and high predictive ability after internal and external validation. By analyzing the contour maps, the electrostatic and hydrophobic interactions were found to be crucial for improving the inhibitory activity and four novel tubulin inhibitors (Compounds D1, D2, D3, and D4) were designed based on the validated 3D-QSAR models. Moreover, the docking findings showed that residues Gln136, Val238, Thr239, Asn167, Val 318 and Ala 316 played important roles for quinoline binding to tubulin. Among the newly designed compounds, compound D1 with the highest total scoring was subjected to detailed molecular dynamics (MD) simulation and compared to the most active compound. The conformational stability of compound D1 complexed with tubulin protein was confirmed by a 50-ns molecular dynamics simulation, which was congruent with molecular docking.   Resumen. La tubulina juega un papel indispensable en la regulación de varios procesos celulares importantes. Recientemente, se le ha reconicodo como un agente promisorio para atacar la rápida división de las células cancerosas. Últimamente se ha identificado una nueva serie de derivados de arilaminotiazo-2-oxoquinolina como potenciales inhibidores de la tubulina, con una elevada actividad citotóxica contra la línea celular de cáncer HeLa. En este estudio, se aplicó a los derivados informados un estudio 3D-QSAR mediante el uso de técnicas CoMFA y CoMSIA para comprender los factores farmacológicos que contribuyen a la actividad como inhibidor y selectivo de la tubulina. Se encontró que los modelos CoMFA y CoMSIA óptimos tienen una confiabilidad estadística significativa y una alta capacidad predictiva después de la validación interna y externa. Al analizar los mapas de contorno, se descubrió que las interacciones electrostáticas e hidrófobas eran cruciales para mejorar la actividad inhibidora y se diseñaron cuatro nuevos inhibidores de la tubulina (compuestos D1, D2, D3 y D4) basados en los modelos 3D-QSAR validados. Además, los hallazgos de acoplamiento mostraron que los residuos Gln136, Val238, Thr239, Asn167, Val 318 y Ala 316 desempeñaron papeles importantes en la unión de la quinolina a la tubulina. Entre los compuestos de nuevo diseño, el compuesto D1 con la puntuación total más alta se sometió a una simulación detallada de dinámica molecular (MD) y se comparó con el compuesto más activo. La estabilidad conformacional del compuesto D1 unido a la proteína tubulina se confirmó mediante una simulación de dinámica molecular de 50 ns, que fue congruente con el acoplamiento molecular.


2021 ◽  
Author(s):  
Mahdiyeh HS Javadi ◽  
Aida Iraji ◽  
maliheh safavi ◽  
Hamed Montazeri ◽  
Parastoo Tarighi ◽  
...  

Abstract In recent years, focusing on new potent anticancer agents with selective activity is one of the greatest challenges in cancer therapy. Breast cancer is the most common cancer and the main cause of cancer deaths in women. The sulfatase enzyme plays an important role in converting the sulfated steroids into non-sulfate steroid hormones, which increases the growth and development of many hormone-dependent cancers, such as breast cancer. In this regard, structure-based optimization was conducted to design novel flavone-sulfonates pharmacophore as a new steroid sulfatase inhibitor. In the present work, the conventional methods for the synthesis of 4-oxo-2-phenyl-4H-chromen-7-yl methanesulfonate derivatives were reported. Their cytotoxicity was evaluated with MTT assay against a breast cancer cell line (MCF-7). The apoptosis inducing activity of the most cytotoxic compound 3c with an IC50 value of 0.615 µM was evaluated in comparison to docetaxel in the presence of estradiol which is a crucial growth factor to survive the cancerous cells. The results of double staining Annexin V-FITC/PI analysis suggested that the cytotoxic activity of this compound 3c in MCF-7 cells occurs via apoptosis. Molecular docking studies were conducted to clarify the inhibition mode of the most promising compound (3c) over the sulfatase (1P49) binding site. The analysis revealed the role of hydrogen bond interaction with Gly181 and hydrophobic interactions through the 1P49 active site in the ligand-receptor complex as significant descriptors to rationalize the potential inhibition activity.


2016 ◽  
Vol 12 (4) ◽  
pp. 4351-4364 ◽  
Author(s):  
Magda Hassan Abdellattif

Introduction: A green protocol will be used to synthesize a novel series of 3-cyano-5- arylazo-pyridones (9a-c) and (10d-i). Methodology: Structures of the new products will be confirmed on the basis of spectroscopic data (FT-IR, 1D, NMR) as well as alternative synthetic routes, anticancer cell-line will be investigated and also molecular docking studies will be applied. Results: The activity against different cancer cell-line will be studied. Compounds with electron withdrawal group showed the highest activities.


2020 ◽  
Vol 9 (1) ◽  

In the modern scientific era, nanotechnology isone of the burning field for researchers and scientists because of their applications in a number of areas. The synthesis of nanoparticles (particles having size 1-100 nm) is also the centre of attraction towards researchers due to its unique chemical and physical properties and wide applications. Nanoparticles can be synthesized by physical, chemical and biological processes also known as green synthesis. Among all of the methods of nanoparticles synthesis, green synthesis is non-toxic, economic and eco-friendly and also applicable to in numerous fields such as medicinal chemistry, catalysis etc. In the present study, we investigate the potential of the extract of plant dicliptera roxburghiana towards the synthesis of copper nanoparticles, for which a fixed ratio of plant extract and CuSO4 solution was used. The synthesis of Cu-NPs was initially confirmed by colour change of CuSO4 from blue to brownish green. The synthesized copper nanoparticles were studied and characterized by XRD, FT-IR and UV-Visible spectroscopy and later on subjected towards the photocatalytic degradation of organic dye methylene blue. Surface Plasmon Resonance of Cu-NPs was found to be at 578 nm using UV-Visible analysis and characteristic peak at 517-519 nm of copper nanoparticles were given by FT-IR spectrometer while XRD analysis showed the spherical shape of Cu-NPs having size of 58 nm. The photocatalytic activity of Cu-NPs was also studied in a comparison manner between the Cu-NPs in dried form and Cu-NPs in plant extract solution against methylene blue under sunlight.


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