91 results match your criteria: "Egypt center for research and regenerative medicine[Affiliation]"

Introduction: An efficient procedure was reported for the synthesis of novel hybrid dithiazoles 7 and thiazoles 15, in good yields, by applying hydrazonyl chlorides 4 with thiocarbohydrazone derivatives 3 and 12.

Methods: The thiazole derivatives were evaluated for their antimicrobial and antioxidant activities.

Results: According to the results, thiazoles revealed marked potency as antimicrobial and antioxidant agents.

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S6K2 in Focus: Signaling Pathways, Post-Translational Modifications, and Computational Analysis.

Int J Mol Sci

December 2024

Division of Cancer, Department of Surgery & Cancer, Faculty of Medicine, Imperial College London, London W12 0NN, UK.

S6 Kinase 2 (S6K2) is a key regulator of cellular signaling and is crucial for cell growth, proliferation, and survival. This review is divided into two parts: the first focuses on the complex network of upstream effectors, downstream modulators, and post-translational modifications (PTMs) that regulate S6K2 activity. We emphasize the dynamic nature of S6K2 regulation, highlighting its critical role in cellular homeostasis and its potential as a therapeutic target in diseases like cancer.

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Clinical impact of PTEN rs701848 as a predictive marker for breast cancer.

Clin Biochem

January 2025

Department of Microbial Biotechnology, Biotechnology Research Institute, National Research Centre, Dokki, P.O. 12622, Giza, Egypt. Electronic address:

Background: The incidence of Breast cancer (BC) is currently augmented and it has become the most common malignant cancer in females. Phosphatase and tensin homolog (PTEN) is a tumor suppressor gene as a result of blocking the phosphorylation of PIP3 in PI3K pathway.

Methods: The computational bioinformatics tools were performed to determine the link between PTEN rs701848T/C genetic variants and breast cancer progression.

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Aim: A new series of 3,4-dihydronaphthalen-1(2 h)-ylidene)hydrazineylidene)-5-substituted thiazolidin-4-one derivatives were designed and synthesized.

Results & Methodology: The new compounds were screened for in vitro antitumor activity against Hela cancer cell line. The compounds 7b, 7 h, and 7i produced more potent cytotoxicity than doxorubicin with IC values of 1.

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Article Synopsis
  • * The article explores the synthesis of bis-thiazole derivatives as potential antiviral candidates against Coxsackievirus B, focusing on one particularly effective derivative, 7a, which inhibits both viral adsorption and replication.
  • * Molecular docking studies revealed that several compounds effectively bind to significant Cox B virus proteins, suggesting their ability to inhibit viral enzyme activity, while an ADMET study indicates these compounds meet favorable physicochemical criteria for drug development.
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Background: Although direct-acting antivirals (DAAs) have revolutionized the management of chronic HCV, the debatable association with hepatocellular carcinoma (HCC) occurrence/recurrence has raised major concerns about their long-term use, especially in cirrhotic cases. The role of epithelial tight junction proteins (TJPs) in hepatocarcinogenesis has been highlighted; however, the association of their expression in peripheral blood mononuclear cells (PBMCs) with HCC has rarely been reported. This study aimed to explore the role of peripheral claudin (Cldn)1 in liver pathogenesis and its crosstalk with soluble immune mediators in HCC prognosis.

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To investigate the therapeutic potential of 5-Fluorouracil-based analogues, a straightforward synthetic technique was employed to synthesize a novel series of 5-arylurea uracil derivatives (AUFU01-03) and aryl-urea derivatives bearing perfluorophenyl (AUPF01-03). Reliable tools such as infrared (IR), Nuclear Magnetic Resonance (NMR) spectra, and elemental analyses were utilized to confirm the chemical structures and purity of these compounds. In comparison to healthy noncancerous control skin fibroblast cells (BJ-1), we examined the antiproliferative efficacy of compounds (AUFU01-03) and (AUPF01-03) against specific human malignant cell lines of the breast (MCF-7), and colon (HCT-116).

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Thymosin Beta 10 (TMSB10) is a thymosin family member that has been identified as being overexpressed in a wide variety of human cancers. This study aimed to determine the expression level of TMSB10 in sera of patients with hepatocellular carcinoma (HCC) and liver cirrhosis. And to reveal the association between TMSB10 and different stages in patients with HCC.

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Article Synopsis
  • * Recent efforts to stop smoking haven't been put into action yet, and it’s important to see what could happen if smoking rates stay the same or improve.
  • * Researchers used models to predict health outcomes by 2050 based on different scenarios of smoking rates, showing that cutting smoking could greatly improve health and life expectancy.
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Triple-negative breast cancer (TNBC) lacks estrogen, progesterone, and human epidermal growth factor receptors and has a poor prognosis as it is resistant to chemotherapy. A new treatment option for this type of cancer may be by putting these malignant cells into dormancy. The oocyte's embryonic milieu presents a unique tumor reversion microenvironment by inducing growth arrest and changing cells' phenotypes.

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Article Synopsis
  • Researchers studied strokes from 1990 to 2021 to understand how many people get them and how they are affected around the world.
  • In 2021, strokes caused about 7.3 million deaths and were a major cause of health problems, especially in specific regions like Southeast Asia and Oceania.
  • There are differences in stroke risks based on where people live and their age, and some areas actually saw more strokes happening since 2015.
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  • Trichinosis, a parasitic disease affecting skeletal muscles, leads to harmful changes in muscle cells, prompting a study on the combined effects of stem cells and atorvastatin with ivermectin in infected mice.
  • A total of 120 Swiss albino male mice were divided into 10 treatment groups to evaluate the effectiveness of various therapies during the intestinal and muscular phases of infection.
  • Results indicated that the combination of ivermectin, atorvastatin, and stem cells significantly reduced parasitic burden and improved muscle health, suggesting a strong synergistic effect in treating trichinosis.
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Can human IgG subclasses distinguish between confirmed and unconfirmed SARS-CoV-2 infections?

J Genet Eng Biotechnol

September 2024

Research Group Immune- and Bio-markers for Infection, the Center of Excellent for Advanced Science, The National Research Centre, 12622 Cairo, Egypt; Environmental Virology Laboratory, Department of Water Pollution Research, Institute of Environmental Research and Climate Changes, the National Research Centre, 12622 Cairo, Egypt.

Background: Immunoglobulin G (IgG) subclasses play a crucial role in the immune response to viral infections. While total IgG levels can generally provide an indication on the immune response, specific IgG subclasses can offer more detailed information about nature of the immune response and stage of the infection. Herein, we addressed the value of both total (t) and SARS-CoV-2-specific (s) IgG-subclasses in distinguishing between infection-confirmed virus-qRT-PCR-positive (IC; V-qRT-PCR-P) and infection-unconfirmed virus-qRT-PCR-unchecked (IU; V-qRT-PCR-UC) Egyptians.

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Article Synopsis
  • Monoclonal IgY antibodies are gaining popularity due to their high specificity and scalability, making them a strong alternative to traditional polyclonal IgY antibodies.
  • The text outlines the production and purification methods of monoclonal IgY antibodies, emphasizing their advantages, such as superior reliability and cost-effectiveness, especially in low- and middle-income countries.
  • It concludes by noting the significant benefits of monoclonal IgY antibodies for diagnostics, therapeutics, and research, while also addressing future challenges in the field.
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Pharmacogenomics (PGx) is the hope for the full optimization of drug therapy while minimizing the accompanying adverse drug events that cost billions of dollars annually. Since years before the century, it has been known that inter-individual variations contribute to differences in specific drug responses. It is the bridge to what is well-known today as "personalized medicine".

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In this study, we aimed to evaluate the immunogenic profile of a chimeric DNA-based hepatitis C virus (HCV) vaccine candidate encoding the full-length viral core-E1-E2 (HCV-CE) fragment. The vaccine candidate was designed to uniformly express the HCV genotype 4 core-E1-E2 protein. The recombinant HCV-CE protein was bacterially expressed in C41 (DE3) cells, and then BALB/c mice were immunized with different combinations of DNA/DNA or DNA/protein prime/boost immunizations.

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The antiviral properties of the flowering aerial extracts of Ruellia tuberosa and Ruellia patula were investigated through phytochemical profiling via LC-MS/MS and HPLC techniques. Qualitative LC-MS/MS analyses identified seventy-seven metabolites from both Ruellia species. R.

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A very practical method for the synthesis of unsymmetrical carbamide derivatives in good to excellent yield was presented, without the need for any catalyst and at room temperature. Using a facile and robust protocol, fifteen unsymmetrical carbamide derivatives (9-23) bearing different aliphatic amine moieties were designed and synthesized by the reaction of secondary aliphatic amines with isocyanate derivatives in the presence of acetonitrile as an appropriate solvent in good to excellent yields. Trusted instruments like IR, mass spectrometry, NMR spectra, and elemental analyses were employed to validate the purity and chemical structures of the synthesized compounds.

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Egypt Genome: Towards an African new genomic era.

J Adv Res

June 2024

Department of Oral Medicine, Periodontolgy and Diagnosis, Faculty of Dentistry, Ain Shams University, Cairo, Egypt; Ministry of Health and Population, Cairo, Egypt.

Background: Studying the human genome is crucial to embrace precision medicine through tailoring treatment and prevention strategies to the unique genetic makeup and molecular information of individuals. After human genome project (1990-2003) generated the first full sequence of a human genome, there have been concerns towards Northern bias due to underrepresentation of other populations. Multiple countries have now established national genome projects aiming at the genomic knowledge that can be harnessed from their populations, which in turn can serve as a basis for their health care policies in the near future.

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Herein, we report analogues of s-indacene by the synthesis of novel indolizine derivatives. Using chloroform as an appropriate solvent, sixteen derivatives of pyrazolyl-indolizine (4--19) were prepared by the reaction of 3-(dimethylamino)-1-(1H-pyrrol-2-yl)prop-2-en-1-one (1) with hydrazonoyl chloride derivatives (2) in the presence of triethylamine in good to excellent yields. We used NMR spectra, IR, mass spectrometry, as well as elemental analyses to prove the chemical structures and the purity of the synthesized compounds 4-19.

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Colorectal cancer (CRC) is the third most frequently found cancer in the world, and it is frequently discovered when it is already far along in its development. About 20% of cases of CRC are metastatic and incurable. There is more and more evidence that colorectal cancer stem cells (CCSCs), which are in charge of tumor growth, recurrence, and resistance to treatment, are what make CRC so different.

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Cancer remains a worldwide healthcare undertaking, demanding continual innovation in anticancer drug development due to frequent drug resistance and adverse effects associated with existing therapies. The benzothiazole compounds, particularly 2-aminobenzothiazole derivatives, have attracted interest for their versatility in generating novel anticancer agents. This study explores the synthesis, and anticancer evaluation of new pyrimidine-based 2-aminobenzothiazole derivatives.

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