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Crosstalk between hypoxic cellular micro-environment and the immune system: a potential therapeutic target for infectious diseases.

There are overwhelming reports on the promotional effect of hypoxia on the malignant behavior of various forms of cancer cells. This has been proposed and tested exhaustively in the light of cancer immunotherapy. However, there could be more interesting functions of a hypoxic cellular micro-environment than malignancy. There is a highly intricate crosstalk between hypoxia inducible factor (HIF), a transcriptional factor produced during hypoxia, and nuclear factor kappa B (NF-κB) which has been well characterized in various immune cell types. This important crosstalk shares common activating an

Aptamer Therapeutics in Cancer: Current and Future.

Aptamer-related technologies represent a revolutionary advancement in the capacity to rapidly develop new classes of targeting ligands. Structurally distinct RNA and DNA oligonucleotides, aptamers mimic small, protein-binding molecules and exhibit high binding affinity and selectivity. Although their molecular weight is relatively small-approximately one-tenth that of monoclonal antibodies-their complex tertiary folded structures create sufficient recognition surface area for tight interaction with target molecules. Additionally, unlike antibodies, aptamers can be readily chemically synthesize

New Progress in Improving the Delivery Methods of Bisphosphonates in the Treatment of Bone Tumors.

Bone tumors are tumors that occur in the bone or its accessory tissues, including primary tumors and metastatic tumors. The main mechanism of bisphosphonate is to inhibit the resorption of destructive bone, inhibit the activity of osteoclasts and reduce the concentration of blood calcium. Therefore, bisphosphonates can be used for malignant hypercalcaemia, pain caused by osteolytic bone metastasis, prevention of osteolytic bone metastasis, multiple myeloma osteopathy, improving radiosensitivity and so on. However, the traditional administration of bisphosphonates can cause a series of adverse

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… Then the liposome complex was used to treat human lung cancer A549 cells to simulate the treatment of tumors bone metastasis. …

Vincristine in Combination Therapy of Cancer: Emerging Trends in Clinics.

Treatment of blood malignancies and other cancer diseases has been mostly unfeasible, so far. Therefore, novel treatment regimens should be developed and the currently used ones should be further elaborated. A stable component in various cancer treatment regimens consists of vincristine, an antimitotic compound of natural origin. Despite its strong anticancer activity, mostly, it cannot be administered as monotherapy due to its unspecific action and severe side effects. However, vincristine is suitable for combination therapy. Multidrug treatment regimens including vincristine are standardly a

Immune-based cancer therapies: mechanistic insights, clinical progress, and future directions.

The field of cancer immunotherapy has evolved rapidly, offering new treatment paradigms by harnessing the body's own immune system to target and destroy malignancies. Various immunotherapeutic approaches, including immune checkpoint inhibitors, CAR-T cell therapy, cancer vaccines, cytokine therapies, and oncolytic viruses, have shown significant promise in treating different cancer types. This review provides a comprehensive examination of the historical development and recent advances in cancer immunotherapy. We discuss the mechanisms of action of key immunotherapeutic modalities, along with

Conditioned Media-Derived Tumor Extracellular Vesicles: Bridging Molecular Insights and Therapeutic Applications in Oncology.

Tumor-derived extracellular vesicles (EVs) are major mediators of oncogenic intercellular communication. However, many studies using conditioned media (CM) recover operationally defined EV- or small EV-enriched fractions rather than biogenesis-proven exosomes. This review synthesizes evidence from CM-derived tumor EV studies and aligns their biological interpretation with current EV nomenclature, characterization, and reporting principles. We first discuss exosome biogenesis as a defined endosomal pathway and then examine how CM collection, serum handling, culture format, oxygen tension, condi

Histone modifications across cancers: mechanisms, therapy and clinical translation.

Cancer continues to be a major cause of death across the globe, and epigenetic dysregulation, including histone modifications, has been recognized as a major hallmark of cancer development, heterogeneity, and drug resistance. This review seeks to offer an overview of histone modifications in cancer, including the more studied histone modifications such as acetylation and methylation, as well as the less explored histone modifications such as phosphorylation, ubiquitination, and glycosylation. It also examines the role of histone modifications in the dysregulation of the three categories of enz

The Impact of Ketogenic Nutrition on Obesity and Metabolic Health: Mechanisms and Clinical Implications.

The ketogenic diet (KD) has recently gained increasing popularity. This high-fat, adequate-protein, and carbohydrate-poor eating pattern leads to nutritional ketosis. The KD has long been known for its antidiabetic and antiepileptic effects and has been used therapeutically in these contexts. Recently, the KD, due to its effectiveness in inducing weight loss, has also been proposed as a possible approach to treat obesity. Likewise, a KD is currently explored as a supporting element in the treatment of obesity-associated metabolic disorders and certain forms of cancer. Here, we discuss the meta

Tumor buster - where will the CAR-T cell therapy 'missile' go?

Chimeric antigen receptor (CAR) T cell (CAR-T cell) therapy based on gene editing technology represents a significant breakthrough in personalized immunotherapy for human cancer. This strategy uses genetic modification to enable T cells to target tumor-specific antigens, attack specific cancer cells, and bypass tumor cell apoptosis avoidance mechanisms to some extent. This method has been extensively used to treat hematologic diseases, but the therapeutic effect in solid tumors is not ideal. Tumor antigen escape, treatment-related toxicity, and the immunosuppressive tumor microenvironment (TME

Резюме книги: ISEV2017.

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Current advance of nanotechnology in diagnosis and treatment for malignant tumors.

Cancer remains a significant risk to human health. Nanomedicine is a new multidisciplinary field that is garnering a lot of interest and investigation. Nanomedicine shows great potential for cancer diagnosis and treatment. Specifically engineered nanoparticles can be employed as contrast agents in cancer diagnostics to enable high sensitivity and high-resolution tumor detection by imaging examinations. Novel approaches for tumor labeling and detection are also made possible by the use of nanoprobes and nanobiosensors. The achievement of targeted medication delivery in cancer therapy can be acc

The role of MSCs and CAR-MSCs in cellular immunotherapy.

Chimeric antigen receptors (CARs) are widely used by T cells (CAR-T cells), natural killer cells dendritic cells and macrophages, and they are of great importance in cellular immunotherapy. However, the use of CAR-related products faces several challenges, including the poor persistence of cells carrying CARs, cell dysfunction or exhaustion, relapse of disease, immune effector cell-associated neurotoxicity syndrome, cytokine release syndrome, low efficacy against solid tumors and immunosuppression by the tumor microenvironment. Another important cell therapy regimen involves mesenchymal stem c

Communication in the Cancer Microenvironment as a Target for Therapeutic Interventions.

The tumor microenvironment (TME) is a complex system composed of multiple cells, such as non-cancerous fibroblasts, adipocytes, immune and vascular cells, as well as signal molecules and mediators. Tumor cells recruit and reprogram other cells to produce factors that maintain tumor growth. Communication between cancerous and surrounding cells is a two-way process and engages a diverse range of mechanisms that, in consequence, can lead to rapid proliferation, metastasis, and drug resistance, or can serve as a tumors-suppressor, e.g., through tumor-immune cell interaction. Cross-talk within the

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… Exosomes: Decreased sensitivity of lung cancer A549 cells to cisplatin. PLoS ONE. 2014;9:e89534. doi: 10.1371/journal.pone.0089534. 81. Takahashi K., Yan I.K., Kogure T., Haga H., Patel T. …

Cancer Stem Cells: The Potential Targets of Chinese Medicines and Their Active Compounds.

The pivotal role of cancer stem cells (CSCs) in the initiation and progression of malignancies has been rigorously validated, and the specific methods for identifying and isolating the CSCs from the parental cancer population have also been rapidly developed in recent years. This review aims to provide an overview of recent research progress of Chinese medicines (CMs) and their active compounds in inhibiting tumor progression by targeting CSCs. A great deal of CMs and their active compounds, such as Antrodia camphorate, berberine, resveratrol, and curcumin have been shown to regress CSCs, in t

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… Blocking the notch pathway can inhibit the growth of CD133-positive A549 cells and sensitize to chemotherapy. Biochem. Biophys. Res. Commun. 2014;444:670–675. doi: 10.1016/j.bbrc.2014.01.164. 106. Shen A., Chen Y., Hong F., Lin J., Wei L., Hong Z., Sferra T.J., Peng J. …

Ganglioside therapy in cancer molecular insights and therapeutic opportunities.

Gangliosides, a class of glycosphingolipids located on the plasma membrane of nearly all cells, play a crucial role in cell signaling and lipid raft dynamics. Their expression is notably high during embryonic development, markedly reduced in most adult tissues, but significantly elevated in various tumor tissues. This distinct expression pattern highlights gangliosides as promising therapeutic targets due to their roles in tumor progression, metastasis, and therapeutic resistance. Targeted ganglioside therapies, particularly monoclonal antibodies against GD2, have already demonstrated clinical

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… In a recent study, significant decrease in glycosphingolipid levels during TGF-β-induced EMT were observed in NMuMG and A549 cells, used as in vitro EMT models. …

Eternal Youth: A Comprehensive Exploration of Gene, Cellular, and Pharmacological Anti-Aging Strategies.

The improvement of human living conditions has led to an increase in average life expectancy, creating a new social and medical problem-aging, which diminishes the overall quality of human life. The aging process of the body begins with the activation of effector signaling pathways of aging in cells, resulting in the loss of their normal functions and deleterious effects on the microenvironment. This, in turn, leads to chronic inflammation and similar transformations in neighboring cells. The cumulative retention of these senescent cells over a prolonged period results in the deterioration of

Prominent Role of Histone Modifications in the Regulation of Tumor Metastasis.

Tumor aggressiveness and progression is highly dependent on the process of metastasis, regulated by the coordinated interplay of genetic and epigenetic mechanisms. Metastasis involves several steps of epithelial to mesenchymal transition (EMT), anoikis resistance, intra- and extravasation, and new tissue colonization. EMT is considered as the most critical process allowing cancer cells to switch their epithelial characteristics and acquire mesenchymal properties. Emerging evidence demonstrates that epigenetics mechanisms, DNA methylation, histone modifications, and non-coding RNAs participate

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… Effects of salinomycin on cancer stem cell in human lung adenocarcinoma A549 cells Med. Chem. 2011 7 106 111 10.2174/157340611794859307 21222617 128. Gong C. Yao H. Liu Q. Chen J. Shi J. Su F. Song E. …

Targeting the DNA Damage Response for Cancer Therapy.

Over the course of long-term evolution, cells have developed intricate defense mechanisms in response to DNA damage; these mechanisms play a pivotal role in maintaining genomic stability. Defects in the DNA damage response pathways can give rise to various diseases, including cancer. The DNA damage response (DDR) system is instrumental in safeguarding genomic stability. The accumulation of DNA damage and the weakening of DDR function both promote the initiation and progression of tumors. Simultaneously, they offer opportunities and targets for cancer therapeutics. This article primarily elucid

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… Furthermore, the combination of NU7441 with topoisomerase inhibitors has a synergistic effect on cell proliferation in A549 cells [ 108 ]. Nedisertib, also known as M3814, enhances the effectiveness of radiation therapy in ovarian cancer animal models and non-small-cell lung cancer models [ 109 ]. …

Smart Targeting To Improve Cancer Therapeutics.

Cancer is the second largest cause of death worldwide with the number of new cancer cases predicted to grow significantly in the next decades. Biotechnology and medicine can and should work hand-in-hand to improve cancer diagnosis and treatment efficacy. However, success has been frequently limited, in particular when treating late-stage solid tumors. There still is the need to develop smart and synergistic therapeutic approaches to achieve the synthesis of strong and effective drugs and delivery systems. Much interest has been paid to the development of smart drug delivery systems (drug-loade

State of the Art of Pharmacological Activators of p53 in Ocular Malignancies.

The pivotal role of p53 in the regulation of a vast array of cellular functions has been the subject of extensive research. The biological activity of p53 is not strictly limited to cell cycle arrest but also includes the regulation of homeostasis, DNA repair, apoptosis, and senescence. Thus, mutations in the p53 gene with loss of function represent one of the major mechanisms for cancer development. As expected, due to its key role, p53 is expressed throughout the human body including the eye. Specifically, altered p53 signaling pathways have been implicated in the development of conjunctival