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Immunosenescence and the Geriatric Giants: Molecular Insights into Aging and Healthspan.

Aging is associated with complex immune dysfunction that contributes to the onset and progression of the "geriatric giants", including frailty, sarcopenia, cognitive decline, falls, and incontinence. Central to these conditions is immunosenescence, marked by thymic involution, the loss of naïve T cells, T-cell exhaustion, impaired B-cell class switch recombination, and increased autoreactivity. Concurrently, innate immunity deteriorates due to macrophage, neutrophil, and NK cell dysfunction, while chronic low-grade inflammation-or "inflammaging"-amplifies systemic decline. Key molecular pathwa

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… Additionally, the reduction in angiogenic growth factors such as vascular endothelial growth factor (VEGF) leads to poor neovascularization and delayed re-epithelialization. …

How the mechanical microenvironment of stem cell growth affects their differentiation: a review.

Stem cell differentiation is of great interest in medical research; however, specifically and effectively regulating stem cell differentiation is still a challenge. In addition to chemical factors, physical signals are an important component of the stem cell ecotone. The mechanical microenvironment of stem cells has a huge role in stem cell differentiation. Herein, we describe the knowledge accumulated to date on the mechanical environment in which stem cells exist, which consists of various factors, including the extracellular matrix and topology, substrate stiffness, shear stress, hydrostati

The anti-tumor potential of sinomenine: a narrative review.

BACKGROUND AND OBJECTIVE: Currently, chemotherapy is the main treatment for most tumors. However, drug resistance and many adverse reactions associated with chemotherapy greatly limit its use. Therefore, an increasing number of researchers have shifted the research focus the anti-tumor activity of traditional Chinese medicine. The objective of this article is to review the anti-tumor mechanism of sinomenine and its derivatives to provide a reference for further study and clinical transformation. METHODS: In this study, we searched for relevant articles on the anti-tumor mechanism of Sinomeniu

Deregulation of the EGFR/PI3K/PTEN/Akt/mTORC1 pathway in breast cancer: possibilities for therapeutic intervention.

The EGFR/PI3K/PTEN/Akt/mTORC1/GSK-3 pathway plays prominent roles in malignant transformation, prevention of apoptosis, drug resistance and metastasis. The expression of this pathway is frequently altered in breast cancer due to mutations at or aberrant expression of: HER2, ERalpha, BRCA1, BRCA2, EGFR1, PIK3CA, PTEN, TP53, RB as well as other oncogenes and tumor suppressor genes. In some breast cancer cases, mutations at certain components of this pathway (e.g., PIK3CA) are associated with a better prognosis than breast cancers lacking these mutations. The expression of this pathway and upstre

Ligand-Gated Ion Channels as Targets for Treatment and Management of Cancers.

Ligand-gated ion channels are an ionotropic receptor subtype characterized by the binding of an extracellular ligand, followed by the transient passage of ions through a transmembrane pore. Ligand-gated ion channels are commonly subcategorized into three superfamilies: purinoreceptors, glutamate receptors, and Cys-loop receptors. This classification is based on the differing topographical morphology of the receptors, which in turn confers functional differences. Ligand-gated ion channels have a diverse spatial and temporal expression which implicate them in key cellular processes. Given that t

Osteocytes: New Kids on the Block for Cancer in Bone Therapy.

The tumor microenvironment plays a central role in the onset and progression of cancer in the bone. Cancer cells, either from tumors originating in the bone or from metastatic cancer cells from other body systems, are located in specialized niches where they interact with different cells of the bone marrow. These interactions transform the bone into an ideal niche for cancer cell migration, proliferation, and survival and cause an imbalance in bone homeostasis that severely affects the integrity of the skeleton. During the last decade, preclinical studies have identified new cellular mechanism

Nanotechnology and Matrix Metalloproteinases in Cancer Diagnosis and Treatment.

Cancer is still one of the leading causes of death worldwide. This great mortality is due to its late diagnosis when the disease is already at advanced stages. Although the efforts made to develop more effective treatments, around 90% of cancer deaths are due to metastasis that confers a systemic character to the disease. Likewise, matrix metalloproteinases (MMPs) are endopeptidases that participate in all the events of the metastatic process. MMPs' augmented concentrations and an increased enzymatic activity have been considered bad prognosis markers of the disease. Therefore, synthetic inhib

Advances in Extracellular Matrix-Associated Diagnostics and Therapeutics.

The extracellular matrix (ECM) is the common denominator of more than 50 chronic diseases. Some of these chronic pathologies lead to enhanced tissue formation and deposition, whereas others are associated with increased tissue degradation, and some exhibit a combination of both, leading to severe tissue alterations. To develop effective therapies for diseases affecting the lung, liver, kidney, skin, intestine, musculoskeletal system, heart, and solid tumors, we need to modulate the ECM's composition to restore its organization and function. Across diverse organ diseases, there are common denom

Triple-Negative Breast Cancer: Basic Biology and Immuno-Oncolytic Viruses.

Triple-negative breast cancer (TNBC) is the most lethal subtype of breast cancer. TNBC diagnoses account for approximately one-fifth of all breast cancer cases globally. The lack of receptors for estrogen, progesterone, and human epidermal growth factor 2 (HER-2, CD340) results in a lack of available molecular-based therapeutics. This increases the difficulty of treatment and leaves more traditional as well as toxic therapies as the only available standards of care in many cases. Recurrence is an additional serious problem, contributing substantially to its higher mortality rate as compared to

The interrelationship between prostate cancer and osteoporosis: new perspectives on shared molecular pathways and treatment strategies.

Osteoporosis is frequently regarded as a complication associated with androgen deprivation therapy (ADT) in patients with prostate cancer. Nevertheless, a notably higher incidence of osteoporosis has been observed in prostate cancer patients even in the absence of ADT, when compared to age-matched healthy individuals. This phenomenon is likely attributable to the synergistic effects of aging, chronic inflammation, and tumor-related factors, which collectively contribute to accelerated bone loss in this population. Accumulating evidence has demonstrated that signaling pathways such as RANKL/RAN

Therapeutic Potential of Antibody-Drug Conjugate-Based Therapy in Head and Neck Cancer: A Systematic Review.

BackgroundAntibody-drug conjugates (ADCs) are designed to deliver potent cytotoxic agents into tumor tissues. During the last two decades, a plethora of ADCs have been successfully developed and used for several indications, including hematologic and solid tumors. In this work, we systematically reviewed the progress in ADC development for the treatment of HNC.MethodsThis review was registered in PROSPERO database. A comprehensive search was conducted following PRISMA guidelines and using PubMed, Scopus and Web of Science database.ResultsIn total, 19 studies were included. Due to the significa

Advanced Diagnostic Techniques

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Оптимизация Белантамаба Мафодотина при рецидиве или резистентной множественной миеломе: влияние изменений дозы на нежелательные реакции и гематологическую реакцию в реальном мире ретроспективном исследовании.

Фон: Белантамаб мафодотин (belamaf) — это антитело-лекарственный конъюгат, мишенью которого является BCMA, используемый при тройном классе резистентной множественной миеломы. Несмотря на свою эффективность, кератопатия остается значимой дозоограничивающей токсичностью. После от withdrawal из американского рынка в 2022 году его использование в Австрии ограничено клиническими испытаниями или компассивным использованием. Методы: В этом реальном мире, ретроспективном исследовании мы проанализировали 36 пациентов с рецидивом/резистентной множественной миеломой, не имеющих предыдущего опыта с BCMA,

Bavachin suppresses proliferation of laryngopharyngeal cancer by regulating the STAT3 and MAPK signaling pathways.

Purpose: The present study aimed to explore the underlying antitumor effects of bavachin on laryngopharyngeal cancer in-vitro and in-vivo. Methods: Tu212 and FaDu cells were cultured in the incubator. Cells were treated with 0.1% DMSO (control group) and different concentrations of bavachin (experimental groups) for exploring the results of proliferation and apoptosis. We revealed the underlying mechanism of bavachin on laryngopharyngeal cancer through western blotting, qRT-PCR assay and immunofluorescence staining. Results: Bavachin could suppress the proliferation and migration of laryngopha

Pharmacological Strategies for Mitigating Cytarabine-Induced Multi-Organ Toxicity: A Scoping Review on Mechanisms, Efficacy and Clinical Implications.

BACKGROUND: Cytarabine (Ara-C) remains the cornerstone of remission-induction and consolidation chemotherapy for acute myeloid leukemia (AML) and related hematological malignancies. Despite more than six decades of clinical use, its multi-organ toxicity continues to be managed almost exclusively through dose attenuation and supportive care, with no approved upstream pharmacological prevention strategy available. OBJECTIVES: This scoping review aimed to systematically map the breadth and nature of pharmacological agents tested in vivo for their capacity to mitigate cytarabine-induced multi-org

Extracellular RNA in melanoma: Advances, challenges, and opportunities.

Melanoma, a malignant mass lesion that originates in melanocytes and has a high rate of malignancy, metastasis, and mortality, is defined by these characteristics. Malignant melanoma is a kind of highly malignant tumor that produces melanin and has a high mortality rate. Its incidence accounts for 1%-3% of all malignant tumors and shows an obvious upward trend. The discovery of biomolecules for the diagnosis and treatment of malignant melanoma has important application value. So far, the exact molecular mechanism of melanoma development relevant signal pathway still remains unclear. According

Научные достижения в отношении роли остеобластов и их производных в разработке, повторении и удалении метастаза злокачественных опухолей костей: обзор повествования.

Злоумышленные опухоли костей, включая первичные опухоли костей, такие, как остеосаркома (OS), саркома Евинга (ES) и множественная миелома, а также вторичные опухоли костей от рака простаты и груди, создают значительный риск смертности. Остеобласт (OBs) и их производные играют важнейшую роль в развитии, повторении и метастазе этих опухолей. ОБ пропагандируют события, связанные с метастазом, включая остеокластную дифференциацию и распространение. Их производные, включая внеклеточные везикли и цитокины, модулярируют реконструкцию костей и развитие опухоли по различным сигнальным путям. Недавние и

Extracellular matrix dysregulation in aging, calcification, and cancer diseases: insights into cellular senescence, inflammation, and novel therapeutic strategies.

This review underscores the dynamic role of the extracellular matrix (ECM) in regulating cellular behavior and maintaining tissue homeostasis, highlighting its pivotal involvement in aging, calcification, and cancer diseases. In healthy tissues, controlled ECM remodeling provides essential biochemical and mechanical cues, but dysregulation (driven by chronic inflammation, cellular senescence, and altered intercellular communication) leads to fibrosis, calcification, and the creation of a pro-tumorigenic microenvironment. Senescent cells contribute to these changes through senescence-associated

Targeting Autophagy Using Long Non-Coding RNAs (LncRNAs): New Landscapes in the Arena of Cancer Therapeutics.

Cancer has become a global health hazard accounting for 10 million deaths in the year 2020. Although different treatment approaches have increased patient overall survival, treatment for advanced stages still suffers from poor clinical outcomes. The ever-increasing prevalence of cancer has led to a reanalysis of cellular and molecular events in the hope to identify and develop a cure for this multigenic disease. Autophagy, an evolutionary conserved catabolic process, eliminates protein aggregates and damaged organelles to maintain cellular homeostasis. Accumulating evidence has implicated the

Molecular Mechanisms and Biomarkers Associated with Chemotherapy-Induced AKI.

Acute kidney injury (AKI) is a life-threatening condition characterized by a rapid and transient decrease in kidney function. AKI is part of an array of conditions collectively defined as acute kidney diseases (AKD). In AKD, persistent kidney damage and dysfunction lead to chronic kidney disease (CKD) over time. A variety of insults can trigger AKI; however, chemotherapy-associated nephrotoxicity is increasingly recognized as a significant side effect of chemotherapy. New biomarkers are urgently needed to identify patients at high risk of developing chemotherapy-associated nephrotoxicity and s