Breast Cancer Cell Line MCF-7 Research Articles

Antiproliferative potential of Lactobacillus casei supernatant against MCF-7 breast cancer and HT-29 colorectal cancer cell lines

Antiproliferative potential of Lactobacillus casei supernatant against MCF-7 breast cancer and HT-29 colorectal cancer cell lines

Antioxidant and Anti-Growth Properties of Selected Anatolian Plant Species: Exploring the Potential of Heracleum humile, Doronicum reticulatum, Centaurea drabifolia, and Senecio olympicus

This study investigated the anti-growth and antioxidant properties of four plant species native to the Anatolian region: Heracleum humile, Doronicum reticulatum, Centaurea drabifolia, and Senecio olympicus. Plant materials were collected, authenticated, and extracted using a Soxhlet apparatus. The growth inhibitory activities of the extracts were evaluated in human breast cancer cell lines MCF-7 and MDA-MB-231, and the nonmalignant immortalized human breast cell line MCF-10A, using the sulforhodamine B (SRB) assay. Antioxidant capacities were assessed via DPPH and CUPRAC assays. The results demonstrated that C. drabifolia extract exhibited potent cytotoxic effects, while D. reticulatum displayed selective toxicity and the most pronounced antioxidant activity among the evaluated species. These findings contribute to our understanding of the therapeutic potential of these indigenous plant species in addressing various public health issues, including cancer.

Synthesis of new imine-/amine-bearing imidazo[1,2-a]pyrimidine derivatives and screening of their cytotoxic activity.

Imidazo[1,2-a]pyrimidine derivatives bearing imine groups (3a-e) were successfully synthesized in moderate to good yields using microwave-assisted heating. Corresponding amine derivatives (4a-e) were also obtained by the reduction reaction of the imine derivatives (3a-e). All synthesized products were characterized by FT-IR, 1H NMR, 13C NMR, and LC-MS spectroscopic techniques. In silico ADMET, Lipinski, and drug-likeness studies of the compounds were conducted and all were found to be suitable drug candidates. The cytotoxicity of the potential drug molecules was screened against the breast cancer cell lines MCF-7 and MDA-MB-231 and the healthy model HUVEC by the sulforhodamine B method. According to the antiproliferative studies, compounds 3d and 4d showed remarkable inhibition of MCF-7 cells with IC50 values of 43.4 and 39.0 μM and of MDA-MB-231 cells with IC50 values of 35.9 and 35.1 μM, respectively. In particular, compound 3d selectively inhibited the proliferation of MCF-7 1.6-fold and MDA-MB-231 2.0-fold relative to healthy cells. Moreover, the apoptotic mechanism studies indicated that compound 4d induced apoptosis by moderately increasing the ratio of Bax/Bcl-2 genes. Imidazo[1,2-a]pyrimidine derivative 3d, a promising cytotoxic agent, may be helpful in the discovery of new and more efficient anticancer agents for breast cancer treatment.

The Phytochemical Components of Kelantan Grown Annona Muricata Leaves and Its Anti-Proliferative Properties on Mcf-7 Breast Cancer Cells

Annona muricata leaves exhibit anti-cancer properties against breast cancer. In this study, the phytochemical components, anti-proliferative activity, and cytotoxicity of Kelantan (Malaysia) grown Annona muricata leaves were evaluated using MCF-7 breast cancer cell line. The preparation of Annona muricata leaves extracts was performed with various organic solvents (ethyl acetate, n-hexane, methanol, and aqueous) using Soxhlet method. Each extract was analysed using gas chromatography-mass spectrometry (GCMS) for phytochemical analysis and characterised with Wiley and NIST library searchers. The effects of all extracts on cell proliferation were analysed using MTT assay. The anti-proliferative activity was determined by evaluating the IC50 value. Based on the lowest IC50value, further experiments were done to observe the apoptosis effect using the Annexin V-FITC technique. While for cell cycle analysis, Cycletest Plus DNA Reagent Kit was used. Both were further determined using flow cytometry analysis. The ethyl acetate-based Annona muricata extract contained terpenoids, phenolic compounds, and alkaloids. Ethyl acetate extract of Annona muricata exhibited a significant cytotoxic effect on MCF-7 breast cancer cells. The most potent IC50 value obtained was 21.8 ± 3.85 µg/mL. The changes in morphology were more profound after 72 h of treatment with ethyl acetate extract of Annona muricata, including cell shrinkage. Flow cytometry analysis showed that it was induced in early and late apoptosis in vitro and arrest at G0/G1 cell cycle phase in time-dependant manners. In short, ethyl acetate extract of Annona muricata exhibited a range of phytochemical components, anti-proliferative activity and cytotoxic effect on MCF-7 breast cancer cells.

Effect of Glycolipoprotein Biosurfactant from Enterococcus faecium on the viability of Breast cancer cell lines.

Objective : This study , was research for cytotoxicity of bio-surfactant created by Enterococcus faecium isolated from feces of Iraqi healthy breast-fed infants with age < 6 months.
 Methods : Cold acetone precipitation was used to the extraction of extracellular Glycolipoprotein biosurfactant and partially purify it. Biosurfactant was then evaluated against two the cell lines, a Breast cancer MCF-7 cell line and a human normal fibroblast cell line NHF), specifically for cell survival and proliferation. 
 Results : At all concentrations with varying percentage, The viability of the MCF-7 cancer cell line was shown to be reduced with the addition of biosurfactant.; maximum inhibition percentage was 74.2% at a 100 µg/ml concentration, which is lesser than 45.5% cytotoxicity Of NHF healthy fibroblasts cell line.
 Conclusions : The findings of this study are highly encouraging in terms of the potential of Glycolipoprotein biosurfactants to treat cancer and encourage additional research with different cell lines.

Synthesis, characterization, anticancer, pharmacokinetics and molecular docking investigation of N (3)-alkyl incorporated-3-acetyl-4-hydroxycoumarin thiosemicarbazones and their copper(II) complexes

Coumarin based thiosemicarbazones (TSC), (E)-2-(1-(4‑hydroxy-2-oxo-2H-chromen-3-yl)ethylidene)-N-methylhydrazine-1-carbothioamide (HACmMeTsc) (3), (E)-N-ethyl-2-(1-(4‑hydroxy-2-oxo-2H-chromen-3-yl)ethylidene)hydrazine-1-carbothioamide (HACmEtTsc) (4) and (E)-N,N‑diethyl-2-(1-(4‑hydroxy-2-oxo-2H-chromen-3-yl)ethylidene)hydrazine-1-carbothioamide (HACmDEtTsc) (5) and their respective copper(II) complexes ([Cu(ACmMeTsc)Cl] (3a), [Cu(ACmEtTsc)Cl] (4a) and [Cu(ACmDEtTsc)Cl] (5a)) are synthesized and characterized by elemental analysis, FTIR, UV–Vis, ESI HRMS, 1H NMR, 13C NMR and single crystal X-ray diffraction analysis. The in vitro anticancer activity of the synthesized compounds by MTT assay against breast cancer cell lines MCF-7 and MDA-MB-231 exhibited strong anti-cancer potential in a dose dependent manner with IC50 value in the range of 12.94 -23.70 μg/mL and 42.18- >100 μg/mL in MCF-7 and MDA-MB-231 cells respectively. Molecular docking study showed that compounds 3, 4 and 5 have significant binding affinity (ΔG = -6.8 to -8.4 kcal/mol) along with interactions including hydrogen bonding with active sites of amino acid residues of both studied proteins, EGFR and HER 2, which may be responsible for the inactiveness of the receptors.

Investigation of Cannabinoid Acid/Cyclodextrin Inclusion Complex for Improving Physicochemical and Biological Performance.

This study aimed to investigate the enhancement of cannabinoid acid solubility and stability through the formation of a cannabinoid acid/cyclodextrin (CD) inclusion complex. Two cannabinoid acids, tetrahydro-cannabinolic acid (THCA) and cannabidiolic acid (CBDA), were selected as a model drug along with five types of CD: α-cyclodextrin (α-CD), β-cyclodextrin (β-CD), γ-cyclodextrin (γ-CD), hydroxypropyl-β-cyclodextrin (HP-β-CD), and methylated-β-cyclodextrin (M-β-CD). Phase solubility studies were conducted using various types of CD to determine the complex stoichiometry. The preparation methods of the CD inclusion complex were optimized by adjusting the loading pH solution and the drying processes (spray-drying, freeze-drying, spray-freeze-drying). The drying process of the cannabinoid acid/M-β-CD inclusion complex was further optimized through the spray-freeze-drying method. These CD complexes were characterized using solubility determination, differential scanning calorimetry (DSC), field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), and 1H NMR spectroscopy. DSC, XRD, and FE-SEM studies confirmed the non-crystalline state of the cannabinoid acid/CD inclusion complex. The permeation of THCA or CBDA from the M-β-CD spray-freeze-dried inclusion complex was highly improved compared to those of cannabis ethanolic extracts under simulated physiological conditions. The stability of the cannabinoid acid/M-β-CD inclusion complex was maintained for 7 days in a simulated physiological condition. Furthermore, the minimum inhibitory concentration of cannabinoid acid/M-β-CD inclusion complex had superior anti-cancer activity in MCF-7 breast cancer cell lines compared to cannabinoid acid alone. The improved physicochemical and biological performances indicated that these CD inclusion complexes could provide a promising option for loading lipophilic cannabinoids in cannabis-derived drug products.

Mitochondriotropic agents conjugated with NSAIDs through metal ions against breast cancer cells

Two copper(I) polymorphs of formula [Cu(SALH)(TPP)3] (1a and 1b) were prepared by the conjugation of the Non-Steroidal Anti-Inflammatory Drug (NSAID) salicylic acid (SALH2) with the mitochondriotropic agent triphenylphosphine (TPP) via metal ion. For comparison, the isomorph [Ag(SALH)(TPP)3] (2) was prepared. The conjugates 1a, 1b and 2 were characterized by melting point (m.p.), Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy, Ultraviolet-Visible (UV–Vis) spectroscopy and nuclear magnetic resonance (1H NMR). The crystal structures of 1a, 1b and 2 were confirmed by X-ray diffraction crystallography (XRD). The ex vivo binding affinity of 1–2 towards CT (calf thymus)-DNA was studied by UV, fluorescence, viscosity and DNA Thermal Denaturation studies. Their inhibitory activity against lipoxygenase (LOX) (an enzyme which is mainly located in the mitochondrion) was determined. The in vitro activity of 1–2 was evaluated against human breast cancer cell lines MCF-7 (hormone depended (HD)) and MDA-MB 281 (hormone independent (HI)) cells. Compounds 1–2 inhibit stronger than cisplatin the cancerous cells. The molecular mechanism of action of 1–2 was suspected by the MCF-7 cells morphology and confirmed by DNA fragmentation, Acridine Orange/Ethidium Bromide (AO/EB) Staining and mitochondrial membrane permeabilization tests.

Anticancer and Antioxidant activity of Gold Nanoparticles Biosynthesized using Acinetobacter baumannii

In the current study, gold nanoparticles were made using Acinetobacter baumannii broth culture. UV-vis, FTIR, XRD, FESEM, AMF, and zeta potential measurements were also used to study the properties of the Ab-AuNPs. The average was 66 nm, ranging from 20 to 90 nm. The examination results proved that the Ab-AuNPs are semi-spherical and varied from 20 to 90 nm, with an average of 66 nm. 
 MTT assay on the breast cancer cell line MCF-7 confirmed the anticancer activity in vitro. Cancer cells showed an important cytotoxic activity of Ab-AuNPs. The breast. Cancer cell. Line.MCF-7 but ineffective against the normal.cell line.MCF-10. The IC50 values of Ab-AuNPs were at 11.45 μg ml-1. The results proved that Ab-AuNPs have DPPH scavenging activity, which increases with increasing concentration of Ab-AuNPs, where the concentrations (3.1, 6.25, 12.5, 25, and 50) mg/m gave DPPH scavenging activity with the following values 37.87%, 50.13%, 59.33%, 75.55%, and 85.13% respectively.
 The present study concludes that gold nanoparticles synthesized using A. baumannii broth culture are easy to prepare, inexpensive, and non-toxic to normal cells. Meanwhile, they possess antioxidant and anticancer activity. So, it can be used as an alternative treatment.

A fluorescent system based on graphene quantum dots-capped magnetic hydroxyapatite-MIL-100 metal-organic frameworks for pH-sensitive and controlled release of DOX

Since metal-organic frameworks (MOFs) have shown great potential as emerging candidates in biomedical applications, it is worthwhile to construct an MOF-based drug delivery system. Hence, in this work, magnetic hydroxyapatite-MIL-100 metal-organic frameworks (SiO2@Fe3O4-HA-MIL-100) with antioxidant properties were synthesized as a novel drug delivery system through in-situ self-assembly of MIL-100 MOFs around pre-synthesized magnetic hydroxyapatite nanoparticles. Then, SiO2@Fe3O4-HA-MIL-100 nanocomposites were capped with fluorescent graphene quantum dots (SiO2@Fe3O4-HA-MIL-100-GQDs) for loading and delivering of doxorubicin (DOX). The SiO2@Fe3O4-HA-MIL-100, GQDs, and SiO2@Fe3O4-HA-MIL-100-GQDs encapsulation efficiency was 80.2, 42.2, and 95.8 %, respectively. The in vitro DOX release amount after 72 h from SiO2@Fe3O4-HA-MIL-100, GQDs, and SiO2@Fe3O4-HA-MIL-100-GQDs at pH 5 was 75.8 %, 86.2 %, and 67.2 %, while at pH 7.4 was 37.3 %, 50.1 %, and 29 %, respectively. These results confirmed a pH-responsive controlled release of DOX from nanocomposites. The release mechanism of DOX from the prepared nanocomposites was also well fitted to the Korsmeyer-Peppas kinetic, Fickian diffusion, and diffusion-controlled release. In addition, the MTT assays of nanocomposites against MCF-7 breast cancer cell lines clearly illustrated that the prepared nanocomposites had no significant cytotoxicity, while DOX-loaded nanocomposites had notable toxicity to MCF-7 cells. The IC50 values of DOX, SiO2@Fe3O4-HA-MIL-100-DOX, GQDs-DOX, and SiO2@Fe3O4-HA-MIL-100-GQDs-DOX against MCF-7 cells calculated at about 4.2 μg/mL, 1.8 μg/mL, 3 μg/mL, and 1.2 μg/mL, respectively. The DPPH test results also showed that the nanocomposites have excellent antioxidant activity. In addition, the in vitro hemolysis results displayed neglectable hemolysis activity (lower than 5 %) of SiO2@Fe3O4-HA-MIL-100-GQDs even at a high dose. Therefore, these new drug delivery systems can be used safely as potential drug carriers in targeted cancer therapy.

Anticancer Activity of Alangium Salvifolium on Human Breast Cancer Cell Lines MCF-7, MDA-MB-468

Alangium salvifolium is a plant that grows in the alangium family. The study's plant species were chosen.The present study was implemented for revealing the anticancer effect of the leaves of methanolic extract of Alangium salvifolium. Phytochemical Screening of A.Salvifolium leaf extract was done which showed the presence of Alkaloids, Flavonoids,Terpenoids. Human Breast Cancer cell lines MCF-7, MDA-MB-468 cells were grown in RPMI media and the 5-10- methylenetetrahydrofolate reductase (MTHFR) Enzyme inhibitory activity was investigated. MTHFR is a one-carbon metabolism enzyme that redirects the pool of folate from DNA synthesis and repair to methylation. The enzyme is vital for cellular homeostasis due to its key functions in the one carbon cycle,which include methionine and protein,DNA and RNA synthesis. Cancer cell lines MCF-7 and MDA-MB-468 treated with Alangium Salvifolium compounds AS1- Deoxytubulosine and AS2 - carboline Hermaline.

Apoptotic effect of reduced Graphene Oxide on MCF-7 Breast cancer cell line using Asparagus Racemosus roots

In the modern era, the major health issue is cancer. Cancer is one of the second- deadliest death-causing diseases worldwide. Graphene is a carbon-based material that has drawn a great deal of attention because of its eccentric chemical and physical properties. Moreover, graphene can be transformed into graphene oxide or reduced graphene oxide, depending on its application. Chemical reduction of graphene oxide was associated with toxic and harmful reducing compounds; hence, the green, efficient and cost-effective approach for graphene synthesis is using plant extract. In this contemporary study, the reduced graphene oxide can be synthesized from Asparagus racemosus root extract, involving anti-cancer activity. The reduced graphene oxide was characterized from UV-Visible, FT-IR, SEM and XRD. The size and shape of the synthesized reduced graphene oxide were confirmed from SEM studies. The anti-cancer activity showed a strong cytotoxic effect on the tested cell line.

Froriepia subpinnata Leaf Extract-Induced Apoptosis in the MCF-7 Breast Cancer Cell Line by Increasing Intracellular Oxidative Stress.

Froriepia subpinnata is one of the plants used in the diet of Iranian people. Previous studies have investigated the antioxidant and antibacterial effects of this plant extract, but no study has been conducted on its anticancer properties. In this study, we investigated the effect of F. subpinnata extract on MCF-7 breast cancer cells. The inhibitory effect of F. subpinnata leaf extract was determined on the growth of cancer cells by the MTT test. The ROS (reactive oxygen species) test was used to investigate the impact of the extract on intracellular oxidative stress. Flow cytometry and real-time PCR tests were used to investigate the apoptosis-related molecular processes. The GC-MS analysis was performed to determine the most abundant components. The GC-MS analysis showed that phytol, mono-ethylhexyl phthalate (MEHP), cinnamaldehyde, and neophytadiene constituted 60% of the extracted content. The MTT assay demonstrated that F. subpinnata leaf extract caused 50% lethality at a 400 μg/mL dose in MCF7 cells. The F. subpinnata extract at low doses decreased the ROS level for 24 hours in MCF-7, but by increasing the concentration, the ROS levels increased. At the IC50 dose (inhibitory concentration (IC) associated with 50% impact), the ROS level increased 3.5 times compared to the control group. Examining the effect of N-acetyl cysteine (NAC) showed that this antioxidant agent could prevent the lethal impact of the extract and eliminate the ROS increase in MCF7 cells. Flow cytometry and real-time PCR results showed that the extract specifically induced apoptosis through the internal apoptosis pathway in this cancer cell line. The F. subpinnata extract induced apoptosis by increasing ROS in MCF-7 cancer cells and can be considered for further studies.

Anti-breast cancer potential of a new xanthine derivative: In silico, antiproliferative, selectivity, VEGFR-2 inhibition, apoptosis induction and migration inhibition studies

BackgroundThe overexpression of VEGFR-2 receptors in breast cancer provides a valuable approach to anticancer strategies. Targeting VEGFR-2, a new semisynthetic compound (T-1-MCPAB) has been designed. MethodsComputational methods (ADMET, toxicity, DFT, Molecular Docking, Molecular Dynamics Simulations, MM-GBSA, PLIP, and PCAT) were conducted. In addition to the semi-synthesis, in vitro studies (anti-VEGFR-2, anti-proliferative, flow cytometry, and wound scratch assay) were employed. ResultsADME and toxicity profiles of T-1-MCPAB studies indicated its overall drug-likeness showing results much better than Sorafenib. Then, T-1-MCPAB’s exact 3D structure, stability, and reactivity were evoked by the DFT calculations. Molecular docking, molecular dynamics simulations, MM-GPSA, PLIP, and PCAT studies denoted the correct binding and inhibiting potential of T-1-MCPAB, towards VEGFR-2 protein. After the semisynthesis, T-1-MCPAB inhibited VEGFR-2 with an IC50 of 0.135 µM, which was comparable to sorafenib's IC50 of 0.0591 µM. T-1-MCPAB also showed a notable performance against MCF7 and T47D breast cancer cell lines with IC50 values of 30.95 µM and 63.64 µM, respectively, and had high selectivity index values of 3.7 and 1.8, respectively. Furthermore, T-1-MCPAB influenced early and late apoptosis and significantly decreased the potential of MCF7 cells to heal and migrate. ConclusionT-1-MCPAB is a promising VEGFR-2 inhibitor with potential for breast cancer treatment. Further chemical and biological studies are needed to explore its potential as a therapeutic agent.

Biological investigations of Aspergillus ficuum via in vivo, in vitro and in silico analyses

Serious human health impacts have been observed worldwide due to several life-threatening diseases such as cancer, candidiasis, hepatic coma, and gastritis etc. Exploration of nature for the treatment of such fatal diseases is an area of immense interest for the scientific community. Based on this idea, the genus Aspergillus was selected to discover its hidden therapeutic potential. The genus Aspergillus is known to possess several biologically active compounds. The current research aimed to assess the biological and pharmacological potency of the extracts of less-studied Aspergillus ficuum (FCBP-DNA-1266) (A. ficuum) employing experimental and bioinformatics approaches. The disc diffusion method was used for the antifungal investigation, and the MTT assay was performed to assess the anticancer effects. Mice were employed as an in vivo model to evaluate the antispasmodic effects. A standard spectrophotometric technique was applied to gauge the urease inhibitory activity. The antifungal studies indicate that both n-hexane and ethyl acetate extracts were significantly active against Candida albicans (C. albicans) with their zone of inhibitions (ZOI) values reported as 19 ± 1.06 mm and 25 ± 0.55 mm, respectively at a dose of 30 µg.mL−1. In vitro cytotoxicity assay against HeLa, fibroblast 3T3, prostate PC3, and breast MCF-7 cancer cell lines was performed. The ethyl acetate extract of A. ficuum was found to be significantly active against MCF-7 with its IC50 value of 43.88 µg.mL−1. However, no substantial effects on the percent cell death of HeLa cancer cell lines were observed. In addition, the A. ficuum extracts also inhibited the urease enzyme compared to standard thiourea. The antispasmodic activity of A. ficuum extract was assessed by an in vivo model and the results demonstrated promising activity at 150 mg.kg−1. Molecular docking results also supported the antifungal, anticancer, and antiurease potency of A. ficuum extract. Overall, the results display promising aspects of A. ficuum extract as a future pharmacological source.

INVESTIGATION OF ANTIANGIOGENIC AND APOPTOTIC EFFECTS OF GALANTAMINE OBTAINED FROM LEUCOJUM AESTIVUM ON MCF-7 BREAST CANCER CELL LINE

OBJECTIVE: The current study aims to investigate the antiangiogenic and apoptotic effects of galantamine in breast cancer cells and to add new information to the literature. MATERIAL AND METHODS: In this study, MCF-7 breast cancer cell line was used and galantamine was obtained from Leucojum aestivum by HPLC method. The effect of galantamine on cell viability was determined by CCK-8 assay at 9 different doses (control, 10, 40, 70, 100, 130, 160, 190, 210 μg/ml) including the control group. Then, to understand the effect of galantamine, other assays (total antioxidant status (TAS), total oxidant status (TOS), poly-ADP ribose polymerase (PARP), and vascular endothelial growth factor (VEGF) levels) were examined in 3 groups; control, LD50 (100 μg/ml) and high dose (210 μg/ml) group. The oxidative stress index (OSI) was then calculated. RESULTS: Galantamine decreased cell viability. The LD50 dose was determined as 100 μg/ml. There was no significant change in VEGF levels. There was a significant dose-dependent decrease in PARP levels (Control: 2.78667±0.155392, LD50: 1.51000±0.107145, High dose: 1.01000±0.054772 ng/L, p=0.000). Compared to the control group, there was a significant dose-related decrease in TAS data (Control: 0.09633±0.002658, LD50: 0.06283±0.002317, High dose: 0.04050±0.001871, p=0.000) and a significant dose-related increase in TOS data (Control: 0.12500±0.010488, LD50: 0.21667±0.015055, High dose: 0.31833±0.021370, p=0.000). A significant dose-related increase in OSI data was found. (Control: 129.964±13.018, LD50: 345.161±26.480, High dose: 788.485±78.575, p=0.000). CONCLUSIONS: It was determined that galantamine had no significant effect on angiogenesis at any dose based on VEGF levels. Galantamine had a negative effect on cell viability and proliferation at certain doses to MCF-7 cells and was found to increase oxidative stress. The decrease in PARP levels indicates the possibility that cells may result in an apoptotic process. These findings may be useful to take a different approach to the use of galantamine in cancer research.

Synthesis, Characterization, ADME Study and Anti-proliferative evaluation against MCF-7 breast cancer cell line of new analog of a 4-aminophenyl quinazolinone derivative

New series of 4-aminophenyl quinazolinone attached to an aromatic aldehyde moiety has been designed. Compound (ZA) was synthesized by a reaction of benzene-1,4-diamine with 2-aminobenzoic acid.
 The reaction between (ZA) intermediate and different substituted aromatic aldehydes (R1- R6) is considered one of the most common chemical reactions for the synthesis of imine compounds (Schiff bases) to produce compound (ZA1-ZA6). FTIR, 1H-NMR, and 13C-NMR have been used to confirm the chemical structures of various substances. MTT assay was used to assess in vitro anti-proliferative action for estrogen receptor alpha. The anti-proliferative study discovered a dose-dependent effect on cell proliferation in breast cancer (MCF-7) with inhibitory concentration In comparison to the reference medication tamoxifen (IC50 of 133.4µg\mL), IC50 of the compounds (ZA1, ZA2, ZA3) was 0.07964, 57.43 & 0.002717 µg\mL, respectively at 72 hours on same cell line mentioned above, that also signifies that compound ZA1 has a significantly greater effect on this cell line type

Evaluation of anticancer effect of colchicum autumnale L. Corm on breast cancer cell

BackgroundBreast cancer is the most common malignancy in women, and medicinal plants can prevent and play an inhibitory role for cancer. This study aims to evaluate the anticancer effect of colchicum autumnale L. Corm on breast cancer cell models.MethodsIn this study, the alkaloid-rich extract was prepared using the percolation method and with methanol/water solvent (70:30). HFF2 normal cell line and MCF-7 breast cancer cell line were cultured in microplates (96 wells). Then cells were treated with concentrations of 62.5 to 2000 ng/ml of extract and concentrations of 62 to 1000 ng/ml of doxorubicin at regular intervals of 48 and 72 h, and the percentage of cell growth inhibition was calculated. Cytotoxicity of drugs was measured by the MTT assay method. IC50 values were calculated by Calcusyn software. Also, the P-value of < 0.05 was considered significant.ResultsAlkaloid-rich extract of Colchicum autumnale plant inhibited breast cancer cell growth (MCF-7). The IC50 parameter showed more cytotoxic effects of Colchicum autumnale plant extract on the MCF-7 cancer cell line than HFF2 normal cell line for 48 and 72 h. In addition, with higher concentrations of the extract, cytotoxicity, and growth inhibitory effect increased significantly and in comparison to the doxorubicin was almost the same as cytotoxic.ConclusionThis research provides a novel view into the development of new drugs for the treatment of cancer diseases. Colchicum autumnale plant extract had a significant cytotoxic effect like Doxorubicin drug on breast cancer cell line (MCF-7), which can alternatively treat and prevent breast cancer.

Proteomics Investigation of the Impact of the Enterococcus faecalis Secretome on MCF-7 Tumor Cells.

Breast cancer is the most prevalent form of cancer among women. The microenvironment of a cancer tumor is surrounded by various cells, including the microbiota. An imbalance between microbes and their host may contribute to the development and spread of breast cancer. Therefore, the objective of this study is to investigate the influence of Enterococcus faecalis on a breast cancer cell line (MCF-7) to mimic the luminal A subtype of breast cancer, using an untargeted proteomics approach to analyze the proteomic profiles of breast cancer cells after their treatment with E. faecalis in order to understand the microbiome and its role in the development of cancer. The breast cancer cell line MCF-7 was cultured and then treated with a 10% bacterial supernatant at two time points (24 h and 48 h) at 37 °C in a humidified incubator with 5% CO2. Proteins were then extracted and separated using two-dimensional difference (2D-DIGE) gel electrophoresis, and the statistically significant proteins (p-value < 0.05, fold change > 1.5) were identified via matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF-MS). The protein fingerprints showed a differential protein expression pattern in the cells treated with E. faecalis for 24 and 48 h compared with the control. We found 58 statistically significant proteins changes in the MCF-7 breast cancer cells affected by E. faecalis. Kilin and transgelin were upregulated after 24 h of treatment and could be used as diagnostic and prognostic markers for breast cancer. In addition, another protein involved in the inhibition of cell proliferation was coiled-coil domain-containing protein 154. The protein markers identified in this study may serve as possible biomarkers for breast cancer progression. This promotes their future uses as important therapeutic goals in the treatment and diagnosis of cancer and increases our understanding of the breast microbiome and its role in the development of cancer.

Pentapeptide PYRAE triggers ER stress-mediated apoptosis of breast cancer cells in mice by targeting RHBDF1-BiP interaction.

Reinforced cellular responses to endoplasmic reticulum (ER) stress are caused by a variety of pathological conditions including cancers. Human rhomboid family-1 protein (RHBDF1), a multiple transmembrane protein located mainly on the ER, has been shown to promote cancer development, while the binding immunoglobulin protein (BiP) is a key regulator of cellular unfolded protein response (UPR) for the maintenance of ER protein homeostasis. In this study, we investigated the role of RHBDF1 in maintaining ER protein homeostasis in breast cancer cells. We showed that deleting or silencing RHBDF1 in breast cancer cell lines MCF-7 and MDA-MB-231 caused marked aggregation of unfolded proteins in proximity to the ER. We demonstrated that RHBDF1 directly interacted with BiP, and this interaction had a stabilizing effect on the BiP protein. Based on the primary structural motifs of RHBDF1 involved in BiP binding, we found a pentapeptide (PE5) targeted BiP and inhibited BiP ATPase activity. SPR assay revealed a binding affinity of PE5 toward BiP (Kd = 57.7 μM). PE5 (50, 100, 200 μM) dose-dependently promoted ER protein aggregation and ER stress-mediated cell apoptosis in MCF-7 and MDA-MB-231 cells. In mouse 4T1 breast cancer xenograft model, injection of PE5 (10 mg/kg, s.c., every 2 days for 2 weeks) significantly inhibited the tumor growth with markedly increased ER stress and apoptosis-related proteins in tumor tissues. Our results suggest that the ability of RHBDF1 to maintain BiP protein stability is critical to ER protein homeostasis in breast cancer cells, and that the pentapeptide PE5 may serve as a scaffold for the development of a new class of anti-BiP inhibitors.