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Iron deprivation in cancer--potential therapeutic implications.

Iron is essential for normal cellular function. It participates in a wide variety of cellular processes, including cellular respiration, DNA synthesis, and macromolecule biosynthesis. Iron is required for cell growth and proliferation, and changes in intracellular iron availability can have significant effects on cell cycle regulation, cellular metabolism, and cell division. Perhaps not surprisingly then, neoplastic cells have been found to have higher iron requirements than normal, non-malignant cells. Iron depletion through chelation has been explored as a possible therapeutic intervention i

Linear and Non-Linear Optimal Control Methods to Determine the Best Chemotherapy Schedule for Most Effectively Inhibiting Tumor Growth.

Background/Objectives: Cancer is a dynamic and complex disease that remains largely untreated despite major advances in oncology and treatment. In this context, we aimed here to investigate optimal control techniques in the management of tumor growth inhibition, with a particular focus on cancer chemotherapy treatment strategies. Methods: Using both linear autoregressive with exogenous inputs (ARX) and advanced non-linear tumor growth inhibition (TGI) modeling approaches, we investigated various single-agent treatment protocols, including continuous, periodic, and intermittent chemotherapy sch

TH1-позиция наивной CD4-T субпопуляции клеток отражает антиопухоль и аутоиммунную болезнь.

Наив CD4 T клетки традиционно рассматриваются как тщеславное, однородное, отдыхающее население, но возникающие данные свидетельствуют об их неоднородности, которая может иметь решающее значение для понимания контекста заболеваний и терапевтических последствий. В этом исследовании мы идентифицируем отдельные подгруппы как в муринных, так и в наивных наивных наивных CD4 T клеток с помощью одноклеточных, РНК-секва (scRNA-seq), с особым акцентом на подгруппе, которая выражает сверхвысокий уровень интерлейкина-7 рецептора (IL-7Rsup-hi), наряду с CD97, IL-18R и LI6C. Эта подгруппа, отсутствующая в т

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… When different conditions or tissue types were available, we integrated those data sets using the canonical correlation analysis (CCA) integration method in Seurat. …

Cancer Immune Therapy for Philadelphia Chromosome-Negative Chronic Myeloproliferative Neoplasms.

Philadelphia chromosome-negative chronic myeloproliferative neoplasms (MPN) are neoplastic diseases of the hematopoietic stem cells in the bone marrow. MPN are characterized by chronic inflammation and immune dysregulation. Of interest, the potent immunostimulatory cytokine interferon-α has been used to treat MPN for decades. A deeper understanding of the anti-cancer immune response and of the different immune regulatory mechanisms in patients with MPN has paved the way for an increased perception of the potential of cancer immunotherapy in MPN. Therapeutic vaccination targeting the driver mut

MET Signaling Pathways, Resistance Mechanisms, and Opportunities for Target Therapies.

The MET gene, known as MET proto-oncogene receptor tyrosine kinase, was first identified to induce tumor cell migration, invasion, and proliferation/survival through canonical RAS-CDC42-PAK-Rho kinase, RAS-MAPK, PI3K-AKT-mTOR, and β-catenin signaling pathways, and its driver mutations, such as MET gene amplification (METamp) and the exon 14 skipping alterations (METex14), activate cell transformation, cancer progression, and worse patient prognosis, principally in lung cancer through the overactivation of their own oncogenic and MET parallel signaling pathways. Because of this, MET driver alte

Targeting KRAS in NSCLC: Old Failures and New Options for "Non-G12c" Patients.

Kirsten Rat Sarcoma Viral Oncogene Homolog (KRAS) gene mutations are among the most common driver alterations in non-small cell lung cancer (NSCLC). Despite their high frequency, valid treatment options are still lacking, mainly due to an intrinsic complexity of both the protein structure and the downstream pathway. The increasing knowledge about different mutation subtypes and co-mutations has paved the way to several promising therapeutic strategies. Despite the best results so far having been obtained in patients harbouring KRAS exon 2 p.G12C mutation, even the treatment landscape of non-p.

Descriptive Analysis of Adverse Events Reported for New Multiple Myeloma Medications Using FDA Adverse Event Reporting System (FAERS) Databases from 2015 to 2022.

BackgroundNew multiple myeloma (MM) medications have revolutionized the treatment landscape, but they are also associated with a range of adverse events (AEs). This study aims to provide a comprehensive overview of AEs reported for four new MM medications: daratumumab, ixazomib, elotuzumab, and panobinostat.MethodsThis study uses a descriptive retrospective approach to analyze the FDA Adverse Event Reporting System (FAERS) from 2015 to 2022. It includes variables like medication names, report details, patient demographics, adverse events, and reporter types. The initial dataset consists of ove

Light Chain Stabilization: A Therapeutic Approach to Ameliorate AL Amyloidosis.

Non-native immunoglobulin light chain conformations, including aggregates, appear to cause light chain amyloidosis pathology. Despite significant progress in pharmacological eradication of the neoplastic plasma cells that secrete these light chains, in many patients impaired organ function remains. The impairment is apparently due to a subset of resistant plasma cells that continue to secrete misfolding-prone light chains. These light chains are susceptible to the proteolytic cleavage that may enable light chain aggregation. We propose that small molecules that preferentially bind to the nativ

Модификация РНК не позволяет расширить кодон-антикодонное взаимодействие облегчить +1 Смена рамы.

Закон о внесении изменений после записи в РНК путем стабилизации функционального соответствия РНК. Хотя их роль в декодировании генератора РНК (mRNA) хорошо установлена, менее ясно, как перенос изменений РНК (tRNA) за пределы антикодона способствует стабильности tRNA и точному синтезу белка. Отсутствие таких изменений приводит к ошибкам в переводе, в том числе к смене mRNA. Интегрировав передачу энергии одним молекулярного флуоресцентного резонанса и криогенную электронную микроскопию, мы продемонстрируем, что N1-methylguanosine (м1G) модификация в положении 37 Эшеричиа коли tRNAProL необходим

The progress of novel strategies on immune-based therapy in relapsed or refractory diffuse large B-cell lymphoma.

Diffuse large B-cell lymphoma (DLBCL) can be cured with standard front-line immunochemotherapy, whereas nearly 30-40% of patients experience refractory or relapse. For several decades, the standard treatment strategy for fit relapsed/refractory (R/R) DLBCL patients has been high-dose chemotherapy followed by autologous hematopoietic stem cell transplant (auto-SCT). However, the patients who failed in salvage treatment or those ineligible for subsequent auto-SCT have dismal outcomes. Several immune-based therapies have been developed, including monoclonal antibodies, antibody-drug conjugates, b

Interpretability and fairness evaluation of deep learning models on MIMIC-IV dataset.

The recent release of large-scale healthcare datasets has greatly propelled the research of data-driven deep learning models for healthcare applications. However, due to the nature of such deep black-boxed models, concerns about interpretability, fairness, and biases in healthcare scenarios where human lives are at stake call for a careful and thorough examination of both datasets and models. In this work, we focus on MIMIC-IV (Medical Information Mart for Intensive Care, version IV), the largest publicly available healthcare dataset, and conduct comprehensive analyses of interpretability as w

Dissecting the effects of 223Radium on the bone microenvironment.

Radium-223 (223Ra) is a bone-seeking, alpha-particle-emitting radionuclide that is approved for the treatment of patients with metastatic prostate cancer and is currently being tested in clinical trials for primary and metastatic cancers to the bone. 223Ra accumulates in mineralized bone areas with high bone turnover, where its effects are confined within 100 μm of the bone-marrow interface due to the short tissue penetrance of the alpha particles. A recent clinical study has shown a significantly increased fracture rate associated with the administration of 223Ra, mostly in tumor-free bones.

FmocFF Peptide Hydrogel Is a Promising Matrix for Encapsulation and Controlled Release of the Anticancer Peptide Drug Bortezomib.

One major public health issue is cancer chemotherapy; despite constant progress in the area, administration of anticancer drugs to patients is often associated with serious side effects. It is therefore imperative to develop vehicles for encapsulation and controlled delivery of such drugs. Anticancer drugs include small peptide drugs, such as Bortezomib (BTZ). Self-assembling peptides have been recently reported as promising drug delivery agents. The research reported here proposes the encapsulation of BTZ into peptide hydrogels formed by the self-assembling FmocFF dipeptide as delivery vehicl

HDACs in the Brain: From Chromatin Remodeling to Neurodegenerative Disease.

Histone deacetylases (HDACs) are key epigenetic regulators that influence chromatin remodeling, gene expression, and cellular plasticity in the central nervous system (CNS). This review provides a comprehensive overview of the classification and functional diversity of HDACs, with particular emphasis on their roles in neural progenitor cells, mature neurons, and glial populations. In neural stem and progenitor cells, HDACs modulate neurogenesis, fate specification, and lineage commitment. In differentiated neurons, HDACs govern synaptic plasticity, memory formation, and survival. In glial cell

Epigenetic Activation of CCDC183-AS1 Promotes Osteoclastogenesis and Prostate Cancer Bone Metastasis Through the FUBP1/LIGHT Axis.

Bone metastasis (BM) is a major contributor to poor prognosis of prostate cancer (PCa); however, the underlying mechanisms of PCa BM remain poorly understood. A better understanding of these processes may provide critical insights for developing effective preventive and therapeutic strategies for PCa BM. In this study, significant upregulation of CCDC183-AS1 in PCa BM is identified, which is associated with disease progression. CCDC183-AS1 overexpression enhanced the ability of PCa cells to spread to the bone by inducing osteoclastogenesis and aiding in the creation of a BM niche. Mechanistica

Don't eat me/eat me signals as a novel strategy in cancer immunotherapy.

Cancer stands as one of the prominent global causes of death, with its incidence burden continuously increasing, leading to a substantial rise in mortality rates. Cancer treatment has seen the development of various strategies, each carrying its drawbacks that can negatively impact the quality of life for cancer patients. The challenge remains significant within the medical field to establish a definitive cancer treatment that minimizes complications and limitations. In the forthcoming years, exploring new strategies to surmount the failures in cancer treatment appears to be an unavoidable pur

Клеточная лимфома после химерика антигена-рецептора-Т: причина для беспокойства?

Химерическая антигенная рецептора (CAR) T-клеточная терапия революционизировала лечение рецидивов или рефракторных заболеваний B-клеток и множественной миеломы, при этом десятки тысяч пациентов во всем мире прошли курс лечения. По мере повышения уровня выживания в центре внимания находится долгосрочная безопасность, и редкие сообщения о лимфомах Т-клеток, происходящих после вливания ЦАР-Т-клеток, вызвали регуляционный контроль и повышенное клиническое внимание. Основываясь на важнейших испытаниях, реальных регистрах, метаанализах, данных о фармакологической бдительности и подробных докладах о

Кристальная структура и каталитический механизм дрименоловой синтазы, необычная двухфункциональная терпеновая киклаза-фосфатаза.

Дрименол синтаза из Aquimarina pongiae (ASDMS) — очень необычная химера, интегрирующая two - отдельные, последовательные операции по переработке изопреноидов в рамках единой полипептидной цепи. ASDMS катализирует циклизацию фарнесилового дифосфата (FPP) класса II для образования дрименилового дифосфата, который затем подвергается гидролизу энзим-катализу для получения дрименинола, биоактивного сескитерпенового спирта с антифунгальными и антираковыми свойствами. Здесь мы сообщаем рентгеновские кристаллы ASDMS и его комплекс с сескитерпен тиол. Структура ASDMS имеет дидомаиновую архитектуру, сос

Targeting Cancer Stem Cell Markers or Pathways: A Potential Therapeutic Strategy for Oral Cancer Treatment.

Cancer stem cells (CSCs) are a small subset of cancer cells with stem cell-like properties, self-renewal potential, and differentiation capacity into multiple cell types. Critical genetic alterations or aberrantly activated signaling pathways associated with drug resistance and recurrence have been observed in multiple types of CSCs. In this context, CSCs are considered to be responsible for tumor initiation, growth, progression, therapeutic resistance, and metastasis. Therefore, to effectively eradicate CSCs, tremendous efforts have been devoted to identify specific target molecules that play

Усовершенствованные методы МРТ: диагностика и последующая деятельность в связи с множественным склерозом

Снимки мозга и спинного мозга играют ключевую роль в оказании помощи врачам в диагностике и мониторинге множественных склерозов. Тем не менее значение магнитного резонансного изображения в MS выходит за рамки его клинической полезности. Усовершенствованные методы визуализации способствовали обнаружению в vivo различных компонентов MS патогенеза, и в последние годы для оценки реакции пациентов с повторной эмиссией MS на имеющиеся методы лечения использовались биомаркеры MRI. Аналогичным образом, показатели МРТ, характеризующие нейродегенерацию, демонстрируют потенциал в качестве первичных и вто