scholarly journals ANTIPROLIFERATIVE ACTIVITY OF ELEPHANTOPUS SCABER MEDIATED SILVER NANOPARTICLES AGAINST MCF-7, A-549, SCC-40, AND COLO-205 HUMAN CANCER CELL LINES

2019 ◽  
pp. 163-167
Author(s):  
ASHWINI S SHINDE ◽  
VIJAY D MENDHULKAR
Keyword(s):  
Silver Nanoparticles ◽  
Cell Lines ◽  
Cancer Cell ◽  
Antiproliferative Activity ◽  
Cancer Cell Lines ◽  
Synergistic Activity ◽  
Standard Drug ◽  
Elephantopus Scaber ◽  
The Impact ◽  
Mcf 7

Objective: To unearth the applications of nanotechnology in medicine has become imperative with all the advancements in the technique. In the current study, we have attempted to exploit the anticancer ability of the green synthesized silver nanoparticles (AgNPs). Methods: The AgNPs were synthesized using 60% methanol (H-MeOH) Elephantopus scaber leaf extract, characterized, and discussed priorly. The effect of AgNPs was studied on the human breast (MCF-7), lung (A-549), oral (SCC-40), and colon (COLO-205) cancer cell lines through sulforhodamine B assay. We also carried out the synergistic activity with standard drug adriamycin (ADR). Results: According to the results obtained, AgNPs showed good antiproliferative activity with GI50 <10 μg/ml on MCF-7, A-549, and SCC-40 cell lines when compared with the standard drug ADR. However, for COLO-205 cell line, the impact was 17.4 μg/ml and thus the treatment was less effective. Conclusion: The synergistic effect of AgNPs+ADR was even better for all the four cell lines than that of the AgNPs alone.

scholarly journals ­Chemical profiling and biological activity of Peperomia blanda (Jacq.) Kunth

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4839 ◽  
Author(s):  
Wafa M. Al-Madhagi ◽  
Najihah Mohd Hashim ◽  
Nasser A. Awad Ali ◽  
Abeer A. Alhadi ◽  
Siti Nadiah Abdul Halim ◽  
...  
Keyword(s):  
Cytotoxic Activity ◽  
Cell Lines ◽  
Cancer Cell ◽  
Radical Scavenging ◽  
Cancer Cell Lines ◽  
Cytotoxic Activities ◽  
Standard Drug ◽  
Chemical Profiling ◽  
First Time ◽  
Mcf 7

Background Peperomia belongs to the family of Piperaceae. It has different uses in folk medicine and contains rare compounds that have led to increased interest in this genus. Peperomia blanda (Jacq.) Kunth is used as an injury disinfectant by Yemeni people. In addition, the majority of Yemen’s population still depend on the traditional remedy for serious diseases such as cancer, inflammation and infection. Currently, there is a deficiency of scientific evidence with regards to the medicinal plants from Yemen. Therefore, this study was performed to assess the chemical profile and in vitro antioxidant and cytotoxic activities of P. blanda. Methods Chemical profiling of P. blanda was carried out using gas chromatography mass spectrometry (GCMS) followed by isolation of bioactive compounds by column chromatography. DPPH• and FRAP assays were used to evaluate antioxidant activity and the MTT assay was performed to estimate the cytotoxicity activity against three cancer cell lines, namely MCF-7, HL-60 and WEHI-3, and three normal cell lines, MCF10A, WRL-68 and HDFa. Results X-ray crystallographic data for peperomin A is reported for the first time here and N,N′-diphenethyloxamide was isolated for the first time from Peperomia blanda. Methanol and dichloromethane extracts showed high radical scavenging activity with an IC50 of 36.81 ± 0.09 µg/mL, followed by the dichloromethane extract at 61.78 ± 0.02 µg/mL, whereas the weak ferric reducing activity of P. blanda extracts ranging from 162.2 ± 0.80 to 381.5 ± 1.31 µg/mL were recorded. In addition, petroleum ether crude extract exhibited the highest cytotoxic activity against all the tested cancer cell lines with IC50 values of 9.54 ± 0.30, 4.30 ± 0.90 and 5.39 ± 0.34 µg/mL, respectively. Peperomin A and the isolated mixture of phytosterol (stigmasterol and β-sitosterol) exhibited cytotoxic activity against MCF-7 and WE-HI cell lines with an IC50 of (5.58 ± 0.47, 4.62 ± 0.03 µg/mL) and (8.94 ± 0.05, 9.84 ± 0.61 µg/mL), respectively, compared to a standard drug, taxol, that has IC50 values of 3.56 ± 0.34 and 1.90 ± 0.9 µg/mL, respectively. Conclusion The activities of P. blanda extracts and isolated compounds recorded in this study underlines the potential that makes this plant a valuable source for further study on anticancer and antioxidant activities.

Study of anti-cancer properties of green silver nanoparticles against MCF-7 breast cancer cell lines

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Shweta Rajawat ◽  
Rajnish Kurchania ◽  
Katherukamen Rajukumar ◽  
Shreyas Pitale ◽  
Sonali Saha ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Cell Lines ◽  
Cancer Cell ◽  
Black Tea ◽  
Cancer Cell Lines ◽  
Electrolytic Deposition ◽  
Anti Cancer ◽  
Average Size ◽  
Tea Leaf ◽  
Mcf 7

AbstractIn the present work, silver nanoparticles were synthesized using an easy, simple, and environment-friendly method based on principles of green chemistry in the absence of a sophisticated laboratory, and their anti-cancer properties were studied. Silver nanoparticles were synthesized using electrolytic deposition. As-synthesized nanoparticles were capped using black tea leaf extract. MTT assay was used to investigate anti-cancer activity. X-ray diffraction graphs show highly pure as-synthesized silver nanoparticles. Transmission electron microscopy images show well-dispersed spherical nanoparticles, with an average size of 9 and 15 nm, corresponding to different values of parameters used in the synthesis. For the MCF-7 cancer cell lines, 100% growth inhibition is obtained. The 50% growth inhibition concentration values against MCF-7 cancer cell lines were obtained at 70- and 30-fold dilutions of colloidal silver of almost the same concentration, 178 μg/ml, for both configurations. Silver nanoparticles can be synthesized, and their morphology can be tuned using the electrolytic deposition method with black tea leaf extract as capping agent. Silver nanoparticles with an average size of 9 nm are more effective those with an average size of 15 nm. The synthesis method is faster, cheaper, and environment friendly and renders a treatment option that can have high accessibility, reduced harmful side effects, and increased economic benefits.

scholarly journals Downregulation of 15-hydroxyprostaglandin dehydrogenase during acquired tamoxifen resistance and association with poor prognosis in ERα-positive breast cancer

2020 ◽  
Vol 1 (5) ◽  
Author(s):  
Milene Volpato ◽  
Michele Cummings ◽  
Abeer M. Shaaban ◽  
Balkees Abderrahman ◽  
Mark A. Hull ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Lines ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Tamoxifen Resistance ◽  
Cancer Cell Lines ◽  
Breast Cancer Cell Lines ◽  
The Impact ◽  
Mcf 7 ◽  
Positive Breast Cancer

Aim: Tamoxifen (TAM) resistance remains a clinical issue in breast cancer. The authors previously reported that 15-hydroxyprostaglandin dehydrogenase (HPGD) was significantly downregulated in tamoxifen-resistant (TAMr) breast cancer cell lines. Here, the authors investigated the relationship between HPGD expression, TAM resistance and prediction of outcome in breast cancer. Methods: HPGD overexpression and silencing studies were performed in isogenic TAMr and parental human breast cancer cell lines to establish the impact of HPGD expression on TAM resistance. HPGD expression and clinical outcome relationships were explored using immunohistochemistry and in silico analysis. Results: Restoration of HPGD expression and activity sensitised TAMr MCF-7 cells to TAM and 17β-oestradiol, whilst HPGD silencing in parental MCF-7 cells reduced TAM sensitivity. TAMr cells released more prostaglandin E2 (PGE2) than controls, which was reduced in TAMr cells stably transfected with HPGD. Exogenous PGE2 signalled through the EP4 receptor to reduce breast cancer cell sensitivity to TAM. Decreased HPGD expression was associated with decreased overall survival in ERα-positive breast cancer patients. Conclusions: HPGD downregulation in breast cancer is associated with reduced response to TAM therapy via PGE2-EP4 signalling and decreases patient survival. The data offer a potential target to develop combination therapies that may overcome acquired tamoxifen resistance.

Design, synthesis, antiproliferative activity and docking studies of quinazoline derivatives bearing oxazole or imidazole as potential EGFR inhibitors

2018 ◽  
Vol 42 (21) ◽  
pp. 17203-17215 ◽  
Author(s):  
Yiqiang OuYang ◽  
Caolin Wang ◽  
Bingbing Zhao ◽  
Hehua Xiong ◽  
Zhen Xiao ◽  
...  
Keyword(s):  
Cell Lines ◽  
Cancer Cell ◽  
Antiproliferative Activity ◽  
Cancer Cell Lines ◽  
Docking Studies ◽  
Egfr Inhibitors ◽  
Design Synthesis ◽  
Quinazoline Derivatives ◽  
Mcf 7

Six series of quinazoline derivatives bearing oxazole or imidazole (8a–f, 9a–f, 10a–d, 11a–f, 12a–d and 13a–i) were designed, synthesized and their IC50 values evaluated against three cancer cell lines (A549, MCF-7 and PC-3).

scholarly journals Antiproliferative, antimicrobial, and antioxidant activity of Lavandula angustifolia Mill. essential oil

2017 ◽  
Vol 7 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Haris Niksic ◽  
Elvira Kovac-Besovic ◽  
Elma Omeragic ◽  
Samija Muratovic ◽  
Jasna Kusturica ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Cell Lines ◽  
Cancer Cell ◽  
Antiproliferative Activity ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Gas Chromatography Mass Spectrometry ◽  
Lavandula Angustifolia ◽  
Mcf 7

Introduction: We studied the chemical composition and antimicrobial, antioxidant, and antiproliferative activities of essential oils from flowers of Lavandula angustifolia grown in Southern Bosnia and Herzegovina. Methods: The chemical profile of essential oil was evaluated by means of gas chromatography-mass spectrometry. Antimicrobial activity was tested against six bacterial strains. The antioxidant activity by the 1,1-diphenyl-2-picrylhydrazyl (DPPH) test and the antiproliferative activity against three human cancer cell lines, MCF-7, NCI-H460, and MOLT-4, were investigated using 3-(4,5-dimethylthiazol-2-Yl)-2,5-diphenyltetrazolium bromide tests. Results: In L. angustifolia essential oil, monoterpene alcohols were the most represented class of volatiles (51.8%), including linalool, lavandulol, and terpinen-4-ol, α-terpineol as the major components, followed by monoterpene esters (22.6%). The most important antibacterial activity of essential oil was expressed on Gram-negative strains. Investigated essential oil was able to reduce DPPH radicals into the neutral DPPH-H form (inhibitory concentration 50% [IC50] = 0.421 mg/ml), and this activity was dose dependent. The essential oil showed significant antiproliferative activity against three cancer cell lines, MOLT-4, MCF-7, and NCI-H460 cells, with IC50 values of 17, 94, and 97 µg/ml, respectively. The result of the antiproliferative assay indicates that MOLT-4 cell line was the most sensitive to investigated essential oil. Conclusion: The results revealed that L. angustifolia essential oil may be important growth inhibitor against the microbes studied. It also possesses significant antioxidant activity and demonstrated excellent antiproliferative activity against MOLT-4 cells.

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