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Monocyte Involvement in the Pathogenesis of Myeloproliferative Neoplasms.

Classical BCR-ABL-negative myeloproliferative neoplasms are a heterogeneous group of hematologic malignancies, including essential thrombocythemia, polycythemia vera, and primary myelofibrosis. Monocytes, immune cells derived from hematopoietic stem cells, exhibit significant heterogeneity and contribute to immune regulation through cytokine secretion and differentiation into dendritic cells and macrophages. Aberrant monocytes are associated with the prognosis of MPNs, particularly PMF. Furthermore, these altered monocytes play a critical role in the pathogenesis and progression of MPNs. This

Recommendations for the management of the haematological and onco-haematological aspects of Gaucher disease.

Current knowledge of the haematological and onco-haematological complications of type 1 Gaucher disease has been reviewed with the aim of identifying best clinical practice for treatment and disease management. It was concluded that: (i) Awareness of typical patterns of cytopenia can help clinicians distinguish haematological co-morbidities. (ii) Red blood cell studies and complete iron metabolism evaluation at baseline are recommended. (iii) Haemoglobin levels defining anaemia should be raised and used in Gaucher disease treatment and monitoring. (iv) Surgeons should be aware of potential ble

Correlation Between Systemic Inflammation Response Index and Systemic Immune-Inflammation Index and Disease Activity of Lupus Nephritis in Children.

Objectives: Lupus nephritis (LN) is a severe manifestation of pediatric systemic lupus erythematosus (SLE) requiring accurate disease activity assessment. This study evaluated the association of the Systemic Inflammation Response Index (SIRI) and the Systemic Immune-Inflammation Index (SII) with disease activity in children with LN. Methods: In this cross-sectional study, 52 children with LN aged 1 month to 18 years treated at Dr. Hasan Sadikin General Hospital, Indonesia, were included. SIRI and SII were calculated from complete blood counts, and disease activity was assessed using the Mexica

Delivery of miR-34a by chitosan/PLGA nanoplexes for the anticancer treatment of multiple myeloma.

The encapsulation of miR-34a into chitosan/PLGA nanoparticles in order to obtain nanoplexes useful for the modulation of the biopharmaceutical features of the active compound was studied. The nanoplexes were obtained through nanoprecipitation and were characterized by a mean diameter of ~160 nm, a good size distribution and a positive surface charge. The structure of the nanoparticles allowed a high level of entrapment efficiency of the miR-34a and provided protection of the genetic material from the effects of RNase. A high degree of transfection efficiency of the nanoplexes and a significant

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… However, it should also be considered that the positive charge of the nanoplexes can have a negative effect on their biopharmaceutical features, because the mononuclear phagocyte system recognizes cationic systems, thus potentially inhibiting the accumulation of the nanoplexes in the target sites. …

Иммунитет в нейромодуляции: исследование нейронных и иммунных путей в расстройствах мозга.

Иммунитет четко регулирует функцию мозга. Она непосредственно участвует в патологических процессах таких нейродегенеративных заболеваний, как болезнь Паркинсона и Альцгеймера, посттравматические заболевания, множественный склероз, травма головного мозга и психические расстройства (большое расстройство организма, серьезное депрессивное расстройство (МДС), расстройства тревожности, расстройства психоза и шизофрения, а также расстройства нервного развития (НРД). Нейромодулирование в настоящее время является одной из ведущих терапевтических стратегий лечения этих расстройств, однако пока мало что

A phase I first-in-man study to investigate the pharmacokinetics and safety of liposomal dexamethasone in patients with progressive multiple myeloma.

Despite the introduction of multiple new drugs and combination therapies, conventional dexamethasone remains a cornerstone in the treatment of multiple myeloma (MM). Its application is, however, limited by frequent adverse effects of which the increased infection rate may have the strongest clinical impact. The efficacy-safety ratio of dexamethasone in MM may be increased by encapsulation in long-circulating PEG-liposomes, thereby both enhancing drug delivery to MM lesions and reducing systemic corticosteroid exposure. We evaluated the preliminary safety and feasibility of a single intravenous

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… Cholesterol and PEG prevent premature removal of the phospholipid vesicles by the mononuclear phagocyte system (MPS) and impart so-called “long-circulating behavior” after i.v. infusion [ 18 ]. …

Engineered cell therapies for autoimmune diseases: evaluating CAR-T and CAR-M progress and prospects.

Autoimmune diseases (AID) comprise a diverse group of disorders driven by aberrant B-cell and T-cell reactivity against self-tissues. In recent years, cell-based therapies utilizing engineered T cells have emerged as a promising therapeutic strategy for AIDs. Notably, chimeric antigen receptor (CAR)-T cells have demonstrated the ability to selectively target and eliminate autoreactive immune populations, including pathogenic B cells and antibody-producing plasma cells. Beyond T-cell modulation, macrophages (MΦs) exhibit remarkable plasticity, differentiating into pro-inflammatory (M1) or anti-

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"Bioinspired" Membrane-Coated Nanosystems in Cancer Theranostics: A Comprehensive Review.

Achieving precise cancer theranostics necessitates the rational design of smart nanosystems that ensure high biological safety and minimize non-specific interactions with normal tissues. In this regard, "bioinspired" membrane-coated nanosystems have emerged as a promising approach, providing a versatile platform for the development of next-generation smart nanosystems. This review article presents an in-depth investigation into the potential of these nanosystems for targeted cancer theranostics, encompassing key aspects such as cell membrane sources, isolation techniques, nanoparticle core sel

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… In contrast, nanoparticles functionalized with ligands or aptamers are prone to immune recognition and clearance by the mononuclear phagocytic system, posing challenges during systemic circulation. Membrane-coated nanosystems, on the other hand, possess inherent immune evasion capabilities. … As a naturally occurring endogenous transport carrier, exosomes shield Fe 3 O 4 NPs from being engulfed by the mononuclear phagocyte system. …

Гиперотражающая сетчатка связана с дегенерацией сетчатки после оптического неврита при расстройствах спектра нейромиелита и множественном склерозе.

СПРАВОЧНАЯ ИНФОРМАЦИЯ: Гиперотражающая сетчатка (ГЧФ), визуализированная томографией оптической согласованности (OCT), потенциально представляет собой группы микроглии. Мы сравнили частоты HRF и их связь с нейродегенерацией сетчатки между людьми с клинически изолированным синдромом (pwCIS), множественным склерозом (pwMS), аквапорином 4-IgG с положительным нейромиэлитным расстройством спектра (pwNMOSD) и здоровым контролем (HC), а также между глазами (ON+eys) и без истории оптического неурита (ON-Leys). МЕТОДЫ: Кросссекционные данные о pwCIS, pwMS и pwNMOSD с предыдущим ON и HC были приобретены

Biomarkers in individualized management of chimeric antigen receptor T cell therapy.

The development of chimeric antigen receptor (CAR) T cell immunotherapy has achieved promising results, both in clinical studies and in commercial products for patients with hematologic malignancies. Despite high remission rates of CAR-T cell therapy in previously untreatable, refractory and/or relapsed patients, several challenges in CAR-T therapy remain to be overcome, especially in integrating such therapies into personalized disease management approaches. Given the unique characteristics of CAR-T therapy, it is particularly urgent to identify biomarkers to maximize their clinical benefits.

N-3 Long-Chain Polyunsaturated Fatty Acids, Eicosapentaenoic and Docosahexaenoic Acid, and the Role of Supplementation during Cancer Treatment: A Scoping Review of Current Clinical Evidence.

This scoping review examines the evidence for n-3 long-chain polyunsaturated fatty acid [LCPUFA, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] supplementation in clinical cancer therapy. A comprehensive literature search was performed to identify relevant clinical intervention studies conducted through August 2020. Fifty-seven unique cancer trials, assessing EPA and/or DHA supplementation pre- or post-treatment, concomitant with neoadjuvant chemotherapy, radiation or surgery, or in palliative therapy were included. Breast, head and neck, gastrointestinal, gastric, colorectal/rect

Contribution of Macrophages and T Cells in Skeletal Metastasis.

Bone is a common site for metastases with a local microenvironment that is highly conducive for tumor establishment and growth. The bone marrow is replete with myeloid and lymphoid linage cells that provide a fertile niche for metastatic cancer cells promoting their survival and growth. Here, we discuss the role of macrophages and T cells in pro- and anti-tumoral mechanisms, their interaction to support cancer cell growth, and their contribution to the development of skeletal metastases. Importantly, immunotherapeutic strategies targeting macrophages and T cells in cancer are also discussed in

New Insights Into the Role of Neutrophils in Lymphoma.

Under physiological conditions, neutrophils exhibit remarkable tissue surveillance capabilities, infiltrating interstitial spaces within secondary lymphoid organs such as lymph nodes and spleen, and even actively patrolling nodal tissues. These observations provide groundbreaking insight into the functional heterogeneity of neutrophils while offering new perspectives on the tumor microenvironment (TME) in lymphomas. A critical question arises: what roles might these specialized, lymphoid tissue-resident neutrophils play in lymphomagenesis through their unique phenotypic and functional adaptati

Nanotechnology in Lung Cancer Therapeutics: A Narrative Review.

To date, cancer continues to be one of the biggest challenges for medical science. Nanotechnology has enabled us to overcome some of the limitations of conventional treatment in lung cancer therapeutics. Recently, US Food and Drug Administration (FDA) has approved certain nanomedicines for clinical administration against lung cancer. This article presents a narrative review of approved nanomedicines in lung cancer with a special focus on the results of recently concluded and ongoing clinical trials. The limitations associated with using nanomaterials as anti-lung cancer therapeutic agents and

Human inhibitory leukocyte Ig-like receptors: from immunotolerance to immunotherapy.

In recent decades, immunotherapeutic strategies have been used to treat a wide range of pathologies, many of which were previously incurable, such as cancer and autoimmune disorders. Despite this unprecedented success, a considerable number of patients fail to respond to currently approved immunotherapies or develop resistance over time. Therefore, there is an urgent need to develop the next generation of immune-targeted therapies. Various members of the Ig superfamily play essential roles in regulating leukocyte functions. One such group, the leukocyte Ig-like receptors (LILRs), have been imp

Anti-tumour activity of bisphosphonates in preclinical models of breast cancer.

There is increasing evidence of anti-tumour effects of bisphosphonates from pre-clinical studies, supporting a role for these drugs beyond their traditional use in treatment of cancer-induced bone disease. A range of model systems have been used to investigate the effects of different bisphosphonates on tumour growth, both in bone and at peripheral sites. Most of these studies conclude that bisphosphonates cause a reduction in tumour burden, but that early intervention and the use of high and/or repeated dosing is required. Successful eradication of cancer may only be achievable by targeting t

Mesenchymal stem cells in the treatment of osteonecrosis of the jaw.

Medication-related osteonecrosis of the jaw (MRONJ) has recently associated to the increase in antiresorptive and anti-angiogenic drugs prescriptions in the treatment of oncologic and osteoporotic patients. The physiopathogenesis of MRONJ remains unclear and available treatments are unsatisfactory. Newer pharmacological treatments have shown good results, but are not curative and could have major side effects. At the same time as pharmacological treatments, mesenchymal stem cells (MSCs) have emerged as a promising therapeutic modality for tissue regeneration and repair. MSCs are multi-potentia

Modulating Post-Stroke Inflammation with FDA-Approved Immunotherapies: A Literature Review.

Stroke has been a topic of extensive research due to its debilitating consequences and high mortality. New findings offer a deeper understanding of specific factors that affect post-stroke recovery and identify therapies that may facilitate this process. One such factor is post-stroke neuroinflammation, a complex and time-dependent process in which acute immune responses can cause significant secondary inflammatory damage if the process is prolonged. Microglia are neuronal immune cells that are highly reactive to cytokines in the neuroenvironment and can, in turn, affect the inflammatory casca

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… Friends or foes: The mononuclear phagocyte system in ischemic stroke Brain Pathol. 2023 33 e13151 10.1111/bpa.13151 36755470 PMC10041168 6. Benkő S. Dénes Á. …

Monitoring NK cell activity in patients with hematological malignancies.

Natural killer (NK) cells are lymphocytes of the innate immune system that can recognize and kill various types of malignant cells. Monitoring the activity of peripheral NK cells in patients affected by hematological malignancies may provide prognostic information or unveil ongoing tumor-specific immune responses. Moreover, further insights into the biology of NK cells might also promote the development of novel strategies for stimulating their anticancer activity. Here, we review the main methods to monitor phenotypic and functional NK cell properties in cancer patients, focusing on individua