35 results match your criteria: "German International University[Affiliation]"

Doxorubicin (DOX) is a cytotoxic anthracycline used to treat a variety of cancers. Cardiotoxicity, hepatotoxicity, and nephrotoxicity are adverse effects of DOX, that limit prognosis. The study aims to determine if diosmin (DIOS) and coenzyme Q10 (CoQ10) alone or in combination protect rats against DOX-induced liver and kidney damage.

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Emerging roles of hydrogen sulfide-metabolizing enzymes in cancer.

Redox Rep

December 2024

Biochemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), New Cairo, Egypt.

Gasotransmitters play crucial roles in regulating many physiological processes, including cell signaling, cellular proliferation, angiogenesis, mitochondrial function, antioxidant production, nervous system functions and immune responses. Hydrogen sulfide (HS) is the most recently identified gasotransmitter, which is characterized by its biphasic behavior. At low concentrations, HS promotes cellular bioenergetics, whereas at high concentrations, it can exert cytotoxic effects.

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Recently, our research group reported an upregulated expression profile of cystathionine γ-lyase (CSE) and cystathionine β-synthase (CBS), key enzymes involved in hydrogen sulfide (HS) production, in triple-negative breast cancer (TNBC) patients. However, the regulatory mechanisms underlying such altered expression patterns are not yet fully understood. In this study, we focused on the role of the STAT3/CSE/HS axis and the potential involvement of non-coding RNAs (ncRNAs), including long and short ncRNAs, in modulating this pivotal pathway.

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Transdermal drug delivery systems are a promising option for the treatment of rheumatoid arthritis (RA) because they can lower systemic adverse effects of immunosuppressants. Janus kinase (JAK) inhibitors were found to be effective for the treatment of RA by inhibiting the JAK-STAT pathway and preventing autoimmune joint destruction. The aim of this study is to deliver tofacitinib (a JAK 1 and 3 inhibitor) through mannose-decorated transferosomes (MDTs) directly to inflamed joints.

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ZnAlO and CuAlO spinel nanoparticles were prepared by a modified Pechini method and used with the natural chitosan (CS) and shellac (SH) polymers to form novel composite membranes as promising food packaging materials. The selection of ZnAlO and CuAlOspinel nanoparticles was based on their antibacterial characteristics, availability, and economy. Using a straightforward and adaptable solution mixing and casting method, the bio-composites were created.

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miR-17-5p/STAT3/H19: A novel regulatory axis tuning ULBP2 expression in young breast cancer patients.

Pathol Res Pract

November 2024

Molecular Genetics Research Team (MGRT), Molecular Biology and Biochemistry Department, Faculty of Biotechnology, German International University, New Administrative Capital 11835, Egypt. Electronic address:

Article Synopsis
  • ULBP2 is a ligand for the NKG2D receptor that is altered in breast cancer, and the study investigates how miR-17-5p, lncRNA H19, and STAT3 regulate ULBP2 in younger breast cancer patients.
  • The study involved 30 breast cancer patients, comparing the expression levels of miR-17-5p, H19, and STAT3 in cancer tissues versus normal tissues, particularly noting differences between patients under 40 and those 40 and older.
  • Findings suggest that H19 acts as a competing RNA that protects STAT3 from being suppressed by miR-17-5p, leading to increased ULBP2 expression, contributing to cancer pathogenesis
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Background: Proteoglycans are important tumor microenvironment extracellular matrix components. The regulation of key proteoglycans, such as decorin (DCN), by miRNAs has drawn attention since they have surfaced as novel therapeutic targets in cancer. Accordingly, this study aimed at identifying the impact of miR-181a in liver cancer and its regulatory role on the extracellular matrix proteoglycan, DCN, and hence on downstream oncogenes and tumor suppressor genes.

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Anti-Mullerian Hormone Induces Foxo1 and Sirt1 Genes Expression in Mouse Ovary.

Curr Pharm Biotechnol

September 2024

Biochemistry Department, Faculty of Pharmacy & Biotechnology, German University in Cairo, Cairo, Egypt.

Background: Anti-Mullerian hormone (AMH) plays a pivotal role in follicular growth and atresia. Recent studies highlighted the role of AMH in attenuating granulosa cell apoptosis and subsequent follicular atresia. Despite the raising understanding of the role of AMH in folliculogenesis, and its contribution to the pathophysiology of certain diseases such as polycystic ovary syndrome, the effect of AMH on the expression of genes regulating folliculogenesis is stills limited.

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Despite recent advancements in cancer therapies, challenges such as severe toxic effects, non-selective targeting, resistance to chemotherapy and radiotherapy, and recurrence of metastatic tumors persist. Consequently, there has been considerable effort to explore innovative anticancer compounds, particularly in immunotherapy, which offer the potential for enhanced biosafety and efficacy in cancer prevention and treatment. One such avenue of exploration involves the miRNA-34 (miR-34) family, known for its ability to inhibit tumorigenesis across various cancers.

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Epigenetic silencing of ZIC4 unveils a potential tumor suppressor role in pediatric choroid plexus carcinoma.

Sci Rep

September 2024

Tumor Biology Research Program, Basic Research Unit, Research Department, Children's Cancer Hospital in Egypt 57357, 1 Sekket El Emam, El Madbah El Kadeem Yard, Sayeda Zeinab, Cairo, Egypt.

Zic family member ZIC4 is a transcription factor that has been shown to be silenced in several cancers. However, understanding the regulation and function of ZIC4 in pediatric choroid plexus tumors (CPTs) remained limited. This study employed data mining and bioinformatics analysis to investigate the DNA methylation status of ZIC4 in CPTs and its correlation with patient survival.

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Circular RNAs (circRNAs) are cardinal players in numerous physiological and pathological processes. CircRNAs play dual roles as tumor suppressors and oncogenes in different oncological contexts, including hepatocellular carcinoma (HCC). Their roles significantly impact the disease at all stages, including initiation, development, progression, invasion, and metastasis, in addition to the response to treatment.

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Ethnopharmacological Relevance: Herbs of the genus Juniperus (family Cupressaceae) have been commonly used in ancestral folk medicine known as "Al'Araar" for treatment of rheumatism, diabetes, inflammation, pain, and fever. Bioassay-guided isolation of bioactives from medicinal plants is recognized as a potential approach for the discovery of novel drug candidates. In particular, non-addictive painkillers are of special interest among herbal phytochemicals.

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A Novel Epigenetic Strategy to Concurrently Block Immune Checkpoints PD-1/PD-L1 and CD155/TIGIT in Hepatocellular Carcinoma.

Transl Oncol

July 2024

Pharmaceutical Biology Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, 11835, Cairo, Egypt; Molecular Biology and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt. Electronic address:

Tumor microenvironment is an intricate web of stromal and immune cells creating an immune suppressive cordon around the tumor. In hepatocellular carcinoma (HCC), Tumor microenvironment is a formidable barrier towards novel immune therapeutic approaches recently evading the oncology field. In this study, the main aim was to identify the intricate immune evasion tactics mediated by HCC cells and to study the epigenetic modulation of the immune checkpoints; Programmed death-1 (PD-1)/ Programmed death-Ligand 1 (PD-L1) and T cell immunoreceptor with Ig and ITIM domains (TIGIT)/Cluster of Differentiation 155 (CD155) at the tumor-immune synapse.

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Background: Hydrogen sulfide (HS) is a significant endogenous mediator that has been implicated in the progression of various forms of cancer including breast cancer (BC). Cystathionine-β-synthase (CBS), cystathionine-γ-lyase (CSE), and 3-mercaptopyruvate sulfurtransferase (3MST) are the three principal mammalian enzymes responsible for HS production. Overexpression of CBS, CSE and 3MST was found to be associated with poor prognosis of BC patients.

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Optimizing FPGA implementation of high-precision chaotic systems for improved performance.

PLoS One

April 2024

Department of Electrical and Computer Engineering, Waterloo Engineering School, University of Waterloo, Waterloo, Canada.

Developing chaotic systems-on-a-chip is gaining much attention due to its great potential in securing communication, encrypting data, generating random numbers, and more. The digital implementation of chaotic systems strives to achieve high performance in terms of time, speed, complexity, and precision. In this paper, the focus is on developing high-speed Field Programmable Gate Array (FPGA) cores for chaotic systems, exemplified by the Lorenz system.

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Puzzling out the role of LncRNA in hepatocellular carcinoma.

Noncoding RNA Res

June 2024

Molecular Genetics Research Team (MGRT), Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), New Administrative Capital, 11835, Cairo, Egypt.

A non-negligible part of our DNA has been proven to be transcribed into non-protein coding RNA and its intricate involvement in several physiological processes has been highly evidenced. The significant biological role of non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs) has been variously reported. In the current review, the authors highlight the multifaceted role of myocardial infarction-associated transcript (), a well-known lncRNA, in hepatocellular carcinoma (HCC).

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LncRNA: A multifunctional key player in non-oncological pathological conditions.

Noncoding RNA Res

June 2024

Molecular Genetics Research Team, Molecular Biology and Biochemistry Department, Faculty of Biotechnology, German International University (GIU), Cairo, 11835, Egypt.

The discovery of non-coding RNAs (ncRNAs) has unveiled a wide range of transcripts that do not encode proteins but play key roles in several cellular and molecular processes. Long noncoding RNAs (lncRNAs) are specific class of ncRNAs that are longer than 200 nucleotides and have gained significant attention due to their diverse mechanisms of action and potential involvement in various pathological conditions. In the current review, the authors focus on the role of lncRNAs, specifically highlighting the Myocardial Infarction Associated Transcript (), in non-oncological context.

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Harnessing the supremacy of MEG3 LncRNA to defeat gastrointestinal malignancies.

Pathol Res Pract

April 2024

Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), Cairo 11835, Egypt. Electronic address:

Evidence suggests that long non-coding RNAs (lncRNAs) play a pivotal role in the carcinogenesis and progression of various human malignancies including gastrointestinal malignancies. This comprehensive review reports the functions and mechanisms of the lncRNA maternally expressed gene 3 (MEG3) involved in gastrointestinal malignancies. It summarizes its roles in mediating the regulation of cellular proliferation, apoptosis, migration, invasiveness, epithelial-to-mesenchymal transition, and drug resistance in several gastrointestinal cancers such as colorectal cancer, gall bladder cancer, pancreatic cancer, gastric cancer, esophageal cancer, cholangiocarcinoma, gastrointestinal stromal tumors and most importantly, hepatocellular carcinoma.

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Involvement of CircRNAs in regulating The "New Generation of Cancer Hallmarks": A Special Depiction on Hepatocellular Carcinoma.

Crit Rev Oncol Hematol

April 2024

Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt. Electronic address:

The concept of 'Hallmarks of Cancer' is an approach of reducing the enormous complexity of cancer to a set of guiding principles. As the underlying mechanism of cancer are portrayed, we find that we gain insight and additional aspects of the disease arise. The understanding of the tumor microenvironment (TME) brought a new dimension and led to the discovery of novel hallmarks such as senescent cells, non-mutational epigenetic reprogramming, polymorphic microbiomes and unlocked phenotypic plasticity.

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Hijacking 5-Fluorouracil Chemoresistance in Triple Negative Breast Cancer via microRNAs-Loaded Chitosan Nanoparticles.

Int J Mol Sci

February 2024

Biology and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), New Administrative Capital, Cairo 11835, Egypt.

Chemotherapy is still the mainstay of treatment for triple-negative breast cancer (TNBC) patients. Yet only 20% of TNBC patients show a pathologic complete response (pCR) after neoadjuvant chemotherapy. 5-Fluorouracil (5-FU) is a stable cornerstone in all recommended chemotherapeutic protocols for TNBC patients.

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Despite the advancements in cancer therapies during the past few years, chemo/photo resistance, severe toxic effects, recurrence of metastatic tumors, and non-selective targeting remain incomprehensible. Thus, much effort has been spent exploring natural anticancer compounds endowed with biosafety and high effectiveness in cancer prevention and therapy. Gambogic acid (GA) is a promising natural compound in cancer therapy.

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Polycystic ovary syndrome (PCOS) is a complex endocrine disorder that affects a substantial percentage of women, estimated at around 9-21%. This condition can lead to anovulatory infertility in women of childbearing age and is often accompanied by various metabolic disturbances, including hyperandrogenism, insulin resistance, obesity, type-2 diabetes, and elevated cholesterol levels. The development of PCOS is influenced by a combination of epigenetic alterations, genetic mutations, and changes in the expression of non-coding RNAs, particularly microRNAs (miRNAs).

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Recently, myriad studies have defined the versatile abilities of gasotransmitters and their synthesizing enzymes to play a "Maestro" role in orchestrating several oncological and non-oncological circuits and, thus, nominated them as possible therapeutic targets. Although a significant amount of work has been conducted on the role of nitric oxide (NO) and carbon monoxide (CO) and their inter-relationship in the field of oncology, research about hydrogen sulfide (HS) remains in its infancy. Recently, non-coding RNAs (ncRNAs) have been reported to play a dominating role in the regulation of the endogenous machinery system of HS in several pathological contexts.

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The host immune system status remains an unresolved mystery among several malignancies. An immune-compromised state or smart immune-surveillance tactics orchestrated by cancer cells are the primary cause of cancer invasion and metastasis. Taking a closer look at the tumour-immune microenvironment, a complex network and crosstalk between infiltrating immune cells and cancer cells mediated by cytokines, chemokines, exosomal mediators and shed ligands are present.

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To provide precise medical regimens, photonics technologies have been involved in the field of nanomedicine. Phototriggered liposomes have been cast as promising nanosystems that achieve controlled release of payloads in several pathological conditions such as cancer, autoimmune, and infectious diseases. In contrast to the conventional liposomes, this photoresponsive element greatly improves therapeutic efficacy and reduces the adverse effects of gene/drug therapy during treatment.

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