Результаты поиска

In vitro расширила человека CD4+CD25+ регуляционные T клетки, подавляющие распространение Т клеток.

Регулирующие Т клетки (Tregs) оказались критически важными в балансе между автоиммунизацией и терпимостью и были связаны с несколькими аутоиммунными заболеваниями человека. Однако небольшое число трегов в периферии крови ограничивает их терапевтический потенциал. Поэтому мы разработали протокол, который позволит расширить "Трегз" при сохранении их подавляющей активности. Мы изолировали клетки CD4+CD25 hi от человеческой периферической крови и расширили их in vitro в присутствии anti-CD3 и anti-CD28 Магнитные кситы и высокие концентрации внешнего интерлейкина (IL) -2. Траги были эффективно расш

Роль антиоксидантов в множестве миеломы: диагностика, прогнозирование и терапевтическое применение: обзор сюжета.

Множественная миэлома (ММ) — злокачественная клетка B-клеток с моноклональными плазменными клетками, производящими нефункциональные иммуноглобулины. Она по-прежнему неизлечима из-за de novo или приобретенного сопротивления злокачественных клеток стандартным химиотерапиям. Таким образом, понимание механизма терапевтического сопротивления имеет важнейшее значение для разработки более эффективных мер вмешательства и определения новых целей лечения. MM - это разнородная болезнь, характеризующаяся сложными генетическими изменениями, которые имеют решающее значение для прогнозирования стратификации.

IL-6/IL-12 суперсемейство цитокинов и регламентируемых лимфоцитов играет важнейшую роль в этиологии и борьбе с аутоиммунными заболеваниями CNS.

Цитокины влияют на решения наивных лимфоцитов о клеточной порче и определяют исход иммунной реакции путем подачи сигналов, регулирующих инициирование, интенсивность и продолжительность иммунной реакции. Вместе с тем аномальное регулирование физиологических уровней цитокина способствует развитию аутоиммунных и других подстрекательских заболеваний. Сверхсемейство цитокинов Interleukin 6 (IL-6)/IL-12 оказывает глубокое влияние на все аспекты иммунитета хостинга, и в ходе этого обзора мы уделяем особое внимание сигнальным путям, которые способствуют выполнению их функций, с уделением особого внима

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… The family also includes IL-11, ciliary neurotrophic factor (CNTF), oncostatin M (OSM), leukemia inhibitory factor (LIF), cardiotrophin 1 (CT-1) and cardiotrophin-like cytokine factor 1 (CLCF1) ( 14 ). …

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

A Preclinical Evaluation of the Antitumor Activities of Edible and Medicinal Mushrooms: A Molecular Insight.

Cancer is the leading cause of morbidity and mortality around the globe. For certain types of cancer, chemotherapy drugs have been extensively used for treatment. However, severe side effects and the development of resistance are the drawbacks of these agents. Therefore, development of new agents with no or minimal side effects is of utmost importance. In this regard, natural compounds are well recognized as drugs in several human ailments, including cancer. One class of fungi, "mushrooms," contains numerous compounds that exhibit interesting biological activities, including antitumor activity

Chimeric antigen receptor modified T-cells for cancer treatment.

T cells engineered with the chimeric antigen receptor (CAR) are rapidly emerging as an important immunotherapy for hematologic malignancies. The anti-cluster of differentiation (CD)19 CAR-T cell therapy has been remarkably successful against refractory/relapsed acute lymphoblastic leukemia (ALL), and a complete remission rate as high as 90% was observed, in both children and adults. Although the achievement of clinical efficacy using CAR-T cell therapy for solid tumors has encountered several obstacles that were associated with the multiple mechanisms contributing to an immunosuppressive micro

T-cell receptor-based therapy: an innovative therapeutic approach for solid tumors.

T-cell receptor (TCR)-based adoptive therapy employs genetically modified lymphocytes that are directed against specific tumor markers. This therapeutic modality requires a structured and integrated process that involves patient screening (e.g., for HLA-A*02:01 and specific tumor targets), leukapheresis, generation of transduced TCR product, lymphodepletion, and infusion of the TCR-based adoptive therapy. In this review, we summarize the current technology and early clinical development of TCR-based therapy in patients with solid tumors. The challenges of TCR-based therapy include those associ

The role of cholesterol metabolism in leukemia.

Leukemia is a common hematological malignancy with overall poor prognosis. Novel therapies are needed to improve the outcome of leukemia patients. Cholesterol metabolism reprogramming is a featured alteration in leukemia. Many metabolic-related genes and metabolites are essential to the progress and drug resistance of leukemia. Exploring potential therapeutical targets related to cholesterol homeostasis is a promising area. This review summarized the functions of cholesterol and its derived intermediate metabolites, and also discussed potential agents targeting this metabolic vulnerability in

Gambogic Acid as a Candidate for Cancer Therapy: A Review.

Gambogic acid (GA), a kind of dry resin secreted by the Garcinia hanburyi tree, is a natural active ingredient with various biological activities, such as anti-cancer, anti-inflammatory, antioxidant, anti-bacterial effects, etc. An increasing amount of evidence indicates that GA has obvious anti-cancer effects via various molecular mechanisms, including the induction of apoptosis, autophagy, cell cycle arrest and the inhibition of invasion, metastasis, angiogenesis. In order to improve the efficacy in cancer treatment, nanometer drug delivery systems have been employed to load GA and form mice

NKG2D CAR-T cells for solid tumor immunotherapy: advances, challenges, and future directions.

Chimeric antigen receptor (CAR) T-cell therapy has achieved significant success in hematologic malignancies, but its efficacy in solid tumors remains limited, primarily due to the immunosuppressive tumor microenvironment (TME) that hinders CAR-T cell trafficking and function. NKG2D CAR-T cells, which target stress-induced NKG2D ligands (NKG2DLs) broadly expressed on tumor cells, have shown promising potential in overcoming the immunosuppressive barriers of the solid TME. This review highlights recent advances in NKG2D CAR-T cell strategies for solid tumors, including innovations in CAR archite

Успехи в сочетании CAR-T-терапии с небольшими молекуловыми реагентами для гематологовых магнатов.

Терапия против антигенного рецептора Т-клеток (CAR-T) стала краеугольным камнем лечения гематологовых магнестов. Однако, будучи монотерапией, она по-прежнему сталкивается с серьезными проблемами, такими, как сопротивление терапии, рецидив заболеваний и минимальное остаточное заболевание (МСД) после возвращения. Небольшие молекулные соединения, такие, как ингибиторы тирозиновой киназы Брютона (БТК), гипометилирующие вещества и иммуномодуляторные препараты, могут повысить эффективность антипухоза клеток CAR-T с помощью различных механизмов, повышая их стойкость и способность к разжижению. Комбин

Tailoring cells for clinical needs: Meeting report from the Advanced Therapy in Healthcare symposium (October 28-29 2017, Doha, Qatar).

New technologies and therapies designed to facilitate development of personalized treatments are rapidly emerging in the field of biomedicine. Strikingly, the goal of personalized medicine refined the concept of therapy by developing cell-based therapies, the so-called "living drugs". Breakthrough advancements were achieved in this regard in the fields of gene therapy, cell therapy, tissue-engineered products and advanced therapeutic techniques. The Advanced Therapies in Healthcare symposium, organized by the Clinical Research Center Department of Sidra Medicine, in Doha, Qatar (October 2017),

Megakaryocyte Contribution to Bone Marrow Fibrosis: many Arrows in the Quiver.

In Primary Myelofibrosis (PMF), megakaryocyte dysplasia/hyperplasia determines the release of inflammatory cytokines that, in turn, stimulate stromal cells and induce bone marrow fibrosis. The pathogenic mechanism and the cells responsible for progression to bone marrow fibrosis in PMF are not completely understood. This review article aims to provide an overview of the crucial role of megakaryocytes in myelofibrosis by discussing the role and the altered secretion of megakaryocyte-derived soluble factors, enzymes and extracellular matrices that are known to induce bone marrow fibrosis.

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… The type I OSM receptor is composed of gp130 and the leukemia inhibitory factor (LIF) receptor β-subunit (LIFR), and the type II OSM receptor is composed of gp130 and the OSM-specific receptor β-subunit (OSMR). 115 OSM has emerged as an important cytokine in the control of hematopoiesis. …

Ribosome Biogenesis and Function in Cancer: From Mechanisms to Therapy.

Ribosome biogenesis is a highly coordinated, multi-step process that assembles the ribosomal machinery responsible for translating mRNAs into proteins. It begins with the rate-limiting step of RNA polymerase I (Pol I) transcription of the 47S ribosomal RNA (rRNA) genes within a specialised nucleolar region in the nucleus, followed by rRNA processing, modification, and assembly with ribosomal proteins and the 5S rRNA produced by Pol III. The ribosomal subunits are then exported to the cytoplasm to form functional ribosomes. This process is tightly regulated by the PI3K/RAS/MYC oncogenic network

Current and Emerging Therapy for Malignant Pleural Mesothelioma: Focus on CD26/Dipeptidyl Peptidase IV as a Therapeutic Target

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Combination Strategies to Optimize Efficacy of Dendritic Cell-Based Immunotherapy.

Dendritic cells (DCs) are antigen-presenting cells (APCs) that are essential for the activation of immune responses. In various malignancies, these immunostimulatory properties are exploited by DC-therapy, aiming at the induction of effective anti-tumor immunity by vaccination with ex vivo antigen-loaded DCs. Depending on the type of DC-therapy used, long-term clinical efficacy upon DC-therapy remains restricted to a proportion of patients, likely due to lack of immunogenicity of tumor cells, presence of a stromal compartment, and the suppressive tumor microenvironment (TME), thereby leading t

Does Regular Exercise Counter T Cell Immunosenescence Reducing the Risk of Developing Cancer and Promoting Successful Treatment of Malignancies?

Moderate intensity aerobic exercise training or regular physical activity is beneficial for immune function. For example, some evidence shows that individuals with an active lifestyle exhibit stronger immune responses to vaccination compared to those who are inactive. Encouragingly, poor vaccine responses, which are characteristic of an ageing immune system, can be improved by single or repeated bouts of exercise. In addition, exercise-induced lymphocytosis, and the subsequent lymphocytopenia, is thought to facilitate immune surveillance, whereby lymphocytes search tissues for antigens derived

Application of the CRISPR/Cas9-based gene editing technique in basic research, diagnosis, and therapy of cancer.

The 2020 Nobel Prize in Chemistry was awarded to Emmanuelle Charpentier and Jennifer Doudna for the development of the Clustered regularly interspaced short palindromic repeats/CRISPR-associated nuclease9 (CRISPR/Cas9) gene editing technology that provided new tools for precise gene editing. It is possible to target any genomic locus virtually using only a complex nuclease protein with short RNA as a site-specific endonuclease. Since cancer is caused by genomic changes in tumor cells, CRISPR/Cas9 can be used in the field of cancer research to edit genomes for exploration of the mechanisms of t

Замена иммуноглобулина: Понятия управления несколькими миеломами.

Immunoglobulin (Ig) - заместительная терапия (IGRT) - состоит из применения низкодозированных поликлонных иг человека для лечения первичной и вторичной гипогаммаглобулинемии, которая связана с периодическими инфекциями и иммунной дисфункцией. ИГРТ восстанавливает физиологические уровни антител и вызывает иммуномумудуляторный эффект путем укрепления клеток иммунного эффекта, тем самым уменьшая инфекцию. Здесь мы описываем фармакологию различных составов иг с уделением особого внимания их механизму действий как низкодозированный ИГРТ, включая прямой антимикробный эффект и иммунодуляторную функци

Proteasome Inhibitors and Their Potential Applicability in Osteosarcoma Treatment.

Osteosarcoma (OS) is the most common type of bone cancer, with ~30% of patients developing secondary/metastatic tumors. The molecular complexity of tumor metastasis and the lack of effective therapies for OS has cultivated interest in exploiting the proteasome as a molecular target for anti-cancer therapy. As our understanding towards the behavior of malignant cells expands, it is evident that cancerous cells display a greater reliance on the proteasome to maintain homeostasis and sustain efficient biological activities. This led to the development and approval of first- and second-generation