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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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… For loading exosomes, many techniques have been utilized; for instance, incubation, sonication, electroporation, or a freeze/thaw cycle. …

The Genetics and Epigenetics of 22q11.2 Deletion Syndrome.

Chromosome 22q11.2 deletion syndrome (22q11.2del) is a complex, multi-organ disorder noted for its varying severity and penetrance among those affected. The clinical problems comprise congenital malformations; cardiac problems including outflow tract defects, hypoplasia of the thymus, hypoparathyroidism, and/or dysmorphic facial features. Additional clinical issues that can appear over time are autoimmunity, renal insufficiency, developmental delay, malignancy and neurological manifestations such as schizophrenia. The majority of individuals with 22q11.2del have a 3 Mb deletion of DNA on chrom

Декодирование GPCR, сигнализирующее перепрограммирование рака: молекулярные механизмы и терапевтические последствия.

G белковые рецепторы (GPCR) представляют собой крупнейшую мембранную группу рецепторов в геноме человека и служат ключевыми регуляторами клеточного сигнала, гомеостаза и фармакологической реакции. Помимо их классической роли в посредничестве внеклеточной стимуляции по зависящим от G-протеина и независимым путям, которые играют ключевую роль при помощи GPCR сигнальных путей, включая CAMP-PKA/EPAC, IP3/PLC, PI3K/Akt/mTOR и ERK/MAPK cascades, в вождении онкогенного распространения, апоптоза и метастаза. Кроме того, ГПХР замешаны в опухоли с помощью различных молекулярных механизмов, в рамках кото

Достижения в области диагностических средств и терапевтических подходов к глиомамам: всеобъемлющий обзор.

Глиомы, широко распространенная категория первичных злокачественных опухолей мозга, создают огромные клинические проблемы из-за их инвазивного характера и ограниченных возможностей лечения. Нынешний терапевтический ландшафт для глиомов сдерживается ".one-Эта парадигма подходит для всех, что существенно ограничивает эффективность лечения. Несмотря на осуществление стратегий мультимодального лечения, показатели выживаемости по-прежнему вызывают разочарование. Традиционный подход к лечению, предусматривающий хирургическое пересечение, излучение и химиотерапию, сталкивается с серьезными ограничени

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… Primary endpoint: The evaluation of the dose-limiting toxicity during the first cycle of sonication and chemotherapy | 17 patients | Imaging analysis showed the blood–brain barrier opening in targeted brain regions, diminishing over the first 1 h after sonication. …

Targeting multiple signaling pathways: the new approach to acute myeloid leukemia therapy.

Acute myeloid leukemia (AML) is the most common form of acute leukemia in adults and the second most common form of acute leukemia in children. Despite this, very little improvement in survival rates has been achieved over the past few decades. This is partially due to the heterogeneity of AML and the need for more targeted therapeutics than the traditional cytotoxic chemotherapies that have been a mainstay in therapy for the past 50 years. In the past 20 years, research has been diversifying the approach to treating AML by investigating molecular pathways uniquely relevant to AML cell prolife

Exploring the Molecular Mechanisms by Which DEHP Promotes the Occurrence and Progression of Kidney Stones Based on Network Toxicology and Experimental Validation.

BACKGROUND: The global burden of kidney stones is increasing, while di(2-ethylhexyl) phthalate (DEHP), a widespread plasticizer and endocrine-disrupting pollutant, has been implicated as a potential environmental risk factor. This study investigated the mechanisms by which DEHP may aggravate calcium oxalate kidney stones through network toxicology, computational analyses, and experimental validation. METHODS: DEHP- and kidney stone-related targets were retrieved from six databases. Shared targets were analyzed using protein-protein interaction networks and Gene Ontology and Kyoto Encyclopedia

Последние достижения в области мезенхимической стволовой клеточной терапии для множественных склерозов: клинические виды применения и проблемы.

Множественный склероз (MS), хроническое аутоиммунное расстройство центральной нервной системы (CNS), характеризуется воспалением, обезвоживанием и нейродегенерацией, что приводит к различным клиническим проявлениям, таким, как усталость, сенсорное расстройство и когнитивная дисфункция. Текущее фармакологическое лечение направлено прежде всего на иммунную модуляцию, но не позволяет остановить прогрессию заболеваний или полностью обратить на нет повреждения CNS. Лечение стволовыми клетками (MSC) является многообещающей альтернативой, используя иммуномудуляторы, нейрозащиту и регенеративные спосо

Микроглиатоподобные чувствительности ограничивают ремиилизацию через сенсацию, связанную с фенотипом фенория.

Способность регенерировать миелин в центральной нервной системе снижается с возрастом. Это сокращение особенно заметно в случае множественного склероза (MS), хронического заболевания демиелином. Независимо от того, способствует ли клеточная сенсация, являющаяся отличительной чертой старения, нарушению воспоминаний, до сих пор неизвестно. Здесь мы показываем, что яркие клетки накапливаются в демиелинированных повреждениях после травмы, а лечение сенолитами усиливает ремиэлизацию у молодых и средних мышей, но не пожилых мышей. В юных мышах мы наблюдаем за тем, как корректируются стенограммы, свя

Pectin: A Bioactive Food Polysaccharide with Cancer Preventive Potential.

Pectin is an acidic heteropolysaccharide found in the cell walls and the primary and middle lamella of land plants. To be authorized as a food additive, industrial pectins must meet strict guidelines set forth by the Food and Agricultural Organization and must contain at least 65% polygalacturonic acid to achieve the E440 level. Fruit pectin derived from oranges or apples is commonly used in the food industry to gel or thicken foods and to stabilize acid-based milk beverages. It is a naturally occurring component and can be ingested by dietary consumption of fruit and vegetables. Preventing lo

Targeting the RANKL/RANK/OPG Axis for Cancer Therapy.

RANKL and RANK are expressed in different cell types and tissues throughout the body. They were originally described for their essential roles in bone remodeling and the immune system but have subsequently been shown to provide essential signals from regulating mammary gland homeostasis during pregnancy to modulating tumorigenesis. The success of RANKL/RANK research serves as a paragon for translational research from the laboratory to the bedside. The case in point has been the development of Denosumab, a RANKL-blocking monoclonal antibody which has already helped millions of patients sufferin

Alkylating anticancer agents and their relations to microRNAs.

Alkylating agents represent an important class of anticancer drugs. The occurrence and emergence of tumor resistance to the treatment with alkylating agents denotes a severe problem in the clinics. A detailed understanding of the mechanisms of activity of alkylating drugs is essential in order to overcome drug resistance. In particular, the role of non-coding microRNAs concerning alkylating drug activity and resistance in various cancers is highlighted in this review. Both synthetic and natural alkylating agents, which are approved for cancer therapy, are discussed concerning their interplay w

Curcumin as a Multi-Target Bioactive Molecule: Mechanistic Insights and Translational Perspectives.

Curcumin, a natural polyphenolic compound derived from the curcuma genus, has attracted considerable attention due to its simple chemical structure, favorable safety profile, and broad-spectrum pharmacological activities. This review provides a comprehensive summary of recent advances in curcumin research, with a specific focus on its therapeutic potential in cancer, inflammation, depression, and metabolic disorders, including non-alcoholic fatty liver disease, hypertension, and osteoporosis. It highlights curcumin's modulation of critical signaling pathways, such as PI3K/Akt, NF-κB, JAK/STAT,

Multiple influence of immune cells in the bone metastatic cancer microenvironment on tumors.

Bone is a common organ for solid tumor metastasis. Malignant bone tumor becomes insensitive to systemic therapy after colonization, followed by poor prognosis and high relapse rate. Immune and bone cells in situ constitute a unique immune microenvironment, which plays a crucial role in the context of bone metastasis. This review firstly focuses on lymphatic cells in bone metastatic cancer, including their function in tumor dissemination, invasion, growth and possible cytotoxicity-induced eradication. Subsequently, we examine myeloid cells, namely macrophages, myeloid-derived suppressor cells,

Exploiting Nanomedicine for Cancer Polychemotherapy: Recent Advances and Clinical Applications.

The most important limitations of chemotherapeutic agents are severe side effects and the development of multi-drug resistance. Recently, the clinical successes achieved with immunotherapy have revolutionized the treatment of several advanced-stage malignancies, but most patients do not respond and many of them develop immune-related adverse events. Loading synergistic combinations of different anti-tumor drugs in nanocarriers may enhance their efficacy and reduce life-threatening toxicities. Thereafter, nanomedicines may synergize with pharmacological, immunological, and physical combined tre

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… EVs can be loaded with drugs using several direct methods, such as incubation, sonication, and electroporation. As an alternative, loading with indirect methods uses the drug to treat parent cells, which then release EVs already loaded with the drug [ 172 ]. …

Inflammatory Signaling Pathways in Preleukemic and Leukemic Stem Cells.

Hematopoietic stem cells (HSCs) are a rare subset of bone marrow cells that usually exist in a quiescent state, only entering the cell cycle to replenish the blood compartment, thereby limiting the potential for errors in replication. Inflammatory signals that are released in response to environmental stressors, such as infection, trigger active cycling of HSCs. These inflammatory signals can also directly induce HSCs to release cytokines into the bone marrow environment, promoting myeloid differentiation. After stress myelopoiesis is triggered, HSCs require intracellular signaling programs to

Biology of stem cell paradox: a double-edged sword-implications for cancer therapy.

This comprehensive review investigates the complex interactions between oncogenesis and stem cells, underscoring the crucial importance of cancer stem cells (CSCs) in the mechanisms of tumorigenesis, metastatic dissemination, and resistance to therapeutic interventions. CSCs constitute a distinct subset within neoplasms, defined by unique characteristics such as the ability to self-renew, the potential to differentiate into various cellular phenotypes, and an inherent resistance to conventional treatment strategies. It is hypothesized that these properties are regulated by a multitude of signa

GD2: hopes and challenges for the treatment of pediatric patients with tumors of the central nervous system.

Pediatric Central Nervous System (CNS) tumors are the leading cause of cancer-related death in children, yet effective treatment options remain limited. The tumor-associated antigen GD2 is a promising target for immunotherapeutic approaches aimed at treating pediatric CNS cancers; however, its heterogeneous expression within and between tumors can complicate the development of effective strategies. Here we review different aspects of GD2 biology, including its structure, synthesis pathway, and cellular and tissue expression, focusing on pediatric CNS tumors. We provide a detailed overview of t

Unlocking hidden potential: advancements, approaches, and obstacles in repurposing drugs for cancer therapy.

High rates of failure, exorbitant costs, and the sluggish pace of new drug discovery and development have led to a growing interest in repurposing "old" drugs to treat both common and rare diseases, particularly cancer. Cancer, a complex and heterogeneous disease, often necessitates a combination of different treatment modalities to achieve optimal outcomes. The intrinsic polygenicity of cancer, intricate biological signalling networks, and feedback loops make the inhibition of a single target frequently insufficient for achieving the desired therapeutic impact. As a result, addressing these c

Targeting super enhancers for liver disease: a review.

BackgroundSuper enhancers (SEs) refer to the ultralong regions of a gene accompanied by multiple transcription factors and cofactors and strongly drive the expression of cell-type-related genes. Recent studies have demonstrated that SEs play crucial roles in regulating gene expression related to cell cycle progression and transcription. Aberrant activation of SEs is closely related to the occurrence and development of liver disease. Liver disease, especially liver failure and hepatocellular carcinoma (HCC), constitutes a major class of diseases that seriously endanger human health. Currently,

The Role of TAM Receptors in Bone.

The TAM (TYRO3, MERTK, and AXL) family of receptor tyrosine kinases are pleiotropic regulators of adult tissue homeostasis maintaining organ integrity and self-renewal. Disruption of their homeostatic balance fosters pathological conditions like autoinflammatory or degenerative diseases including rheumatoid arthritis, lupus erythematodes, or liver fibrosis. Moreover, TAM receptors exhibit prominent cell-transforming properties, promoting tumor progression, metastasis, and therapy resistance in various cancer entities. Emerging evidence shows that TAM receptors are involved in bone homeostasis