Treatment Of Cancerous Tissue Research Articles

Effect of Artemisia Vulgaris on Liver of Albino Mice Exposed to Cisplatin

The herb Arte(also known as Artemisia V.) is widely used to treat a variety of illnesses, including gastrointestinal disorders, infections, and fungal infections. The antibacterial component that makes this ingredient so beneficial and essential for treating septicemia is the prebiotic. This study looked at how Artemisia vulgaris L. protected rats' livers from the toxic treatment cisplatin. In virtual medicine, cisplatin is frequently employed. Numerous forms of human cancer, such as advanced cancer, uterine cancer, esophageal cancer, advanced privacy, and ovarian cancer, have been successfully treated with it. infection from other illnesses, like disease. In this experiment, thirty 25–30 g white secretive mice aged 12 weeks were used. 72 hours were spent soaking blood tissue samples in 4% paraformaldehyde before they were paraffin embedded. Hematoxylin-eosin (H, E) staining was applied after the sections were cut into 3-m pieces and embedded in paraffin wax. Establishing with the extraction of Artemisia vulgaris L 400 mg/kg/day of extract is the greatest efficiency technique, as the separated groups revealed. This proved the extract's efficiency. This finding offers thorough and widely reported support for the use of purifications like A. vulgaris in the medical treatment of systemic poisoning with additional benefits like definite therapeutic effects and potent histochemical in the treatment of cancerous tissues.

Preparation of pH-sensitive chitosan-magnetic graphene quantum dot bionanocomposite hydrogel beads for drug delivery application: Emphasis on effects nanoparticles

Chitosan-based bionanocomposite hydrogel beads have attracted much attention as carriers in drug delivery systems due to their inherent properties, such as excellent biocompatibility, high swelling, and high storage capacities. In this study, a combination of chitosan hydrogel with different amounts of MGQD was prepared and used for pH-sensitive controlled release of MTX. The successful synthesis was confirmed through various analysis methods. The fabricated CS, CS-MGQD 5%, CS-MGQD 10%, and CS-MGQD 15% hydrogel beads loaded about 84, 83, 77, and 64% of MTX, respectively. The results of the swelling behavior and drug release behavior showed that the hydrogel beads experience pH-dependent swelling and release of MTX. In addition, investigating the effect of MGQD concentration on swelling behavior and drug release showed that CS-MGQD 15% has favorable stability and controllable drug release in an acid environment. Also, the Weibull kinetic model was the best-fitting model for MTX release from CS-MGQD 15% bionanocomposite hydrogels at pH 5. These findings suggest that the prepared magnetic bionanocomposite hydrogel beads have good potential for implantable pH-sensitive drug delivery in the treatment of cancerous tissue.

First-principles studies on two-dimensional B3O3 adsorbent as a potential drug delivery platform for TEPA anticancer drug.

The remarkable properties of pristine B3O3 nanosheet as a nanocarrier for adsorption and desorption of TEPA anticancer drug for designing potential drug delivery platform were investigated using periodic DFT calculations. We studied the adsorption energy of all stable complexes formed between the drug molecule and B3O3 in gas and aqueous phases along with electronic structure analysis of complexes. Different adsorption configurations were studied for drug/B3O3 complexes, including the interaction of the C atom of the triangular ring, O atom in the TEPA drug with the B atom in B3O3, and indirect drug interaction the middle of the R1 ring cavity of the B3O3 nanosheet. The take-up of TEPA prompts a substantial change of 68.13% in the band gap (Eg) of the B3O3 nanosheet in the most stable complex. The present study results affirmed the application of B3O3 nanosheet as a potential vehicle for TEPA drugs in the treatment of cancerous tissues.

MicroRNAs expression changes coincide with low or high grade of squamous intraepithelial lesion infected by HPV-16

Cervical cancer is the second most common malignancy worldwide and the third leading cause of death in women. It accounts for 1% of all cancers and is the third neoplasm ever diagnosed. Several viruses can cause cancer so that viruses are connected to almost 15–20% of human malignancies and nearly 80% of cervical and liver. MicroRNAs can be used as a tumor oncogene by controlling related genes of tumors. In addition, they can be applied as biomarkers in the diagnosis, prognosis, and even treatment of cancer tissues. The current study aimed to investigate the changes in the expression of miR-21, miR-16, miR-143, and miR-34a related to the severity of the disease in women with low or high grades of squamous intraepithelial lesion or carcinoma infected by HPV-16. In this case-control study, the expression of four microRNAs in formalin-fixed paraffin-embedded tissues of 36 patients with cervical cancer and 36 samples of healthy women are studied by real-time-PCR. For all four miRNAs, enhanced expression was observed in low-grade SIL patients, compared to controls. Also, increased expression of miR-21 in high-grade SIL patients and decreased expression of miR-143 in this grade were found. MicroRNAs can play important roles as biomarkers in the diagnosis of different stages of cervical carcinoma.

Interventional NIR Fluorescence Imaging of Cancer: Review on Next Generation of Dye-Loaded Protein-Based Nanoparticles for Real-Time Feedback During Cancer Surgery

The use of fluorescence imaging technique for visualization, resection and treatment of cancerous tissue, attained plenty of interest once the promise of whole body and deep tissue near-infrared (NIR) imaging emerged. Why is NIR so desired? Contrast agents with optical properties in the NIR spectral range offer an upgrade for the diagnosis and treatment of cancer, by dint of the deep tissue penetration of light in the NIR region of the electromagnetic spectrum, also known as the optical window in biological tissue. Thus, the development of a new generation of NIR emitting and absorbing contrast agents able to overcome the shortcomings of the basic free dye administration is absolutely essential. Several examples of nanoparticles (NPs) have been successfully implemented as carriers for NIR dye molecules to the tumour site owing to their prolonged blood circulation time and enhanced accumulation within the tumour, as well as their increased fluorescence signal relative to free fluorophore emission and active targeting of cancerous cells. Due to their versatile structure, good biocompatibility and capability to efficiently load dyes and bioconjugate with diverse cancer-targeting ligands, the research area of developing protein-based NPs encapsulated or conjugated with NIR dyes is highly promising but still in its infancy. The current review aims to provide an up-to-date overview on the biocompatibility, specific targeting and versatility offered by protein-based NPs loaded with different classes of NIR dyes as next-generation fluorescent agents. Moreover, this study brings to light the newest and most relevant advances involving the state-of-the-art NIR fluorescent agents for the real-time interventional NIR fluorescence imaging of cancer in clinical trials.

MALDI-MS Imaging Analysis of Noninflammatory Type III Rotaxane Dendrimers.

Rotaxane dendrimers with hyperbranched macromolecular interlocked structures and size modulation capacity demonstrate drug binding and release ability upon external stimuli. Mass spectrometry imaging (MSI) can offer the high-throughput screening of endogenous/exogenous compounds. Herein, we reported a novel method to display the in situ spatial distribution of label-free monodispersed type III rotaxane dendrimers (RDs) G1 (first generation, size ∼1.5 nm) and G2 (second generation, size ∼5 nm) that were explored as potential drug vehicles in spleen tissue by using matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI-MSI). Experimental results indicated that the trans-2-[3-(4-tert-butylphenyl)-2-methyl-2-propenylidene]malononitrile (DCTB) matrix exhibited the best performance for monodispersed type III RDs G1 and G2. The optimized method was successfully applied to map the in vivo spatial distribution of type III RDs G1 and G2 in the spleen from intraperitoneally injected mice. The MALDI-MSI images revealed that RDs G1 and G2 were relatively stable in the spleen within 24 h after administration. It was found that the identified type III RDs G1 and G2 penetrated through the tunica serosa and were predominantly localized in red pulp regions of spleens. They were also mapped in a marginal zone of spleens simultaneously. There was almost no toxicity of type III RDs G1 and G2 to mice spleens from the H&E results. Furthermore, the type III RDs did not induce the expression of inflammatory cytokines from peripheral blood mononuclear cells (PBMCs) or THP-1 monocytes. The MSI analysis not only demonstrated its ability to image select rotaxane dendrimers in a rapid and efficient manner but also provided tremendous assistance on the applications of the further treatment of cancerous tissue as safe drug carriers. Furthermore, the new strategy demonstrated in this study could be applied on other label-free mechanically interlocked molecules, molecular machines, and macromolecules, which opened a new path to evaluate the toxicological and pharmacokinetic characteristics of these novel materials at the suborgan level.

Techniques to Improve Photodynamic Therapy.

Photodynamic therapy [dye-light therapy] is an excellent technique for use in detection and treatment of cancerous tissues. While this therapy is effective, it is limited by the phototoxic reactions that can occur in the surrounding normal tissues. These damaging side effects are of particular importance when treating neurosensory organs, such as the human eye. We report here new treatment strategies to enhance photodynamic effectiveness while limiting side effects to normal tissues.

Fabrication and evaluation of anti-cancer efficacy of lactoferrin-coated maghemite and magnetite nanoparticles

Studies on the anti-cancer effects of nanomaterials are a very important step in the clinical practice and treatment of cancerous tissues. Since IONPs have a high potential for cancer treatment, their anti-cancer properties can help us to resolve some of the therapeutic problems. For this purpose, in addition to synthesizing two types of IONPs including MN and MHN, Lf coating was used to increase their anti-cancer activity. MN and MHN were synthesized by hydrothermal and thermal methods, respectively, and their physicochemical properties were examined by SEM, zeta-potential, DLS, FTIR, TGA, and magnetism saturation. Molecular modelling was also done to model two steps of functionalization on the IONPs surface. In order to prove the biological activity of fabricated NPs in vitro, experimental assays of NP cytotoxicity were performed on breast cancerous cells (4T1) by MTT and ROS assays. It was found that the MN and MHN have a diameter around 24 and 33 nm, respectively. Also, the hydrodynamic radius of MN and MHN coated with Lf were 30 and 38 nm, and their zeta potential values at pH = 7.5 were −5.3 and −4.2 mV, respectively. Besides, the results of TGA, magnetism saturation and FTIR showed that Lf was successfully loaded onto NPs. Molecular modelling investigation depicted that dimethylamine moiety of the linker provides an intense reactive region for non-bonding linkages with Lf molecules. Cellular studies exhibited that Lf increased the toxicity of NPs and synthesized Lf-MNs provide the highest potency both on mortality and ROS level. This research may provide promising data for development of potential anticancer agents. Communicated by Ramaswamy H. Sarma

Electrochemical treatment of cancerous tissue of liver using the techniques of mathematical modeling

Electrochemical treatment of cancerous tissue of liver using the techniques of mathematical modeling

Synthesis, characterization and bioevaluation of drug-collagen hybrid materials for biomedical applications

This work presents a study based on the preparation and characterization of drug-collagen hybrid materials. Materials used for obtaining drug-collagen hybrids were collagen type I (Coll) as matrix and fludarabine (F) and epirubicin (E) as hydrophilic active substances. After incorporation of drugs into Coll in different ratios, the obtained hybrid materials (Coll/F and Coll/E) could be used according to our results as potential drug delivery systems in medicine for the topical (local) treatment of cancerous tissues (e.g. the treatment of breast, stomach, lung, colorectal or advanced ovarian cancer).The materials were characterized considering their composition (by XRD, FT-IR and DTA–TG) and their morphology (by SEM). The delivery of drug was assessed by UV–vis.The in vitro citotoxicity demonstrates an antitumoral activity of the obtained hybrid materials and their potential use for biomedical applications as drug delivery systems in tumoral treatments.

Synthesis, characterization and bioevaluation of irinotecan-collagen hybrid materials for biomedical applications as drug delivery systems in tumoral treatments

Abstract The purpose of the present study is the preparation and characterization of collagen/antitumor drug hybrids as drug delivery systems. Materials used for obtaining collagen-based drug delivery systems were collagen type I (Coll) as matrix and irinotecan (I) as hydrophilic active substances. After incorporation of I into Coll in differing ratios, the obtained hybrid materials (Coll/I) could be used according to our results as potential drug delivery systems in medicine for the topical (local) treatment of cancerous tissues or bone. The released amount of I varies with amount of Coll from hybrid materials: the higher, the slower the release amount of irinotecan transferred is in the first 6 hours. The in vitro citotoxicity demonstrates an antitumoral activity of the obtained hybrid materials and their potential use for biomedical applications as drug delivery systems in tumoral treatments.

ELF-ELECTROMAGNETIC FIELDS INHIBIT THE PROLIFERATION OF HUMAN CANCER CELLS AND INDUCE APOPTOSIS

Weak and low-frequency pulsating electromagnetic fields (ELF-MF) can be applied to change cell metabolism, if cells are treated in a specific range of frequency and amplitude. In our case, the influence on proliferation of human K562 cells has been studied by applying a sinusoidal 50 Hz field of magnetic flux densities (B) between 2 and 13 mT for 2 or 4 days. In repeating all runs three times—counting each day—no difference between experiment and control was found below 6 mT. However, stronger field amplitudes inhibit cell division and induce apoptosis and necrosis as shown by flow cytometry. Treatment with ≥10 mT decreases the number of living cells to only 2% of the control. This electromagnetically induced apoptosis may be a first step for a noninvasive treatment of cancer tissue for inhibition of its proliferation.

Biotechnology regulations and guidelines in Europe

This work presents a study based on the preparation and characterization of drug-collagen hybrid materials. Materials used for obtaining drug-collagen hybrids were collagen type I (Coll) as matrix and fludarabine (F) and epirubicin (E) as hydrophilic active substances. After incorporation of drugs into Coll in different ratios, the obtained hybrid materials (Coll/F and Coll/E) could be used according to our results as potential drug delivery systems in medicine for the topical (local) treatment of cancerous tissues (e.g. the treatment of breast, stomach, lung, colorectal or advanced ovarian cancer).The materials were characterized considering their composition (by XRD, FT-IR and DTA–TG) and their morphology (by SEM). The delivery of drug was assessed by UV–vis.The in vitro citotoxicity demonstrates an antitumoral activity of the obtained hybrid materials and their potential use for biomedical applications as drug delivery systems in tumoral treatments.