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Causes, clinical findings and therapeutic options in chylomicronemia syndrome, a special form of hypertriglyceridemia.

The prevalence of hypertriglyceridemia has been increasing worldwide. Attention is drawn to the fact that the frequency of a special hypertriglyceridemia entity, named chylomicronemia syndrome, is variable among its different forms. The monogenic form, termed familial chylomicronemia syndrome, is rare, occuring in 1 in every 1 million persons. On the other hand, the prevalence of the polygenic form of chylomicronemia syndrome is around 1:600. On the basis of the genetical alterations, other factors, such as obesity, alcohol consumption, uncontrolled diabetes mellitus and certain drugs may sign

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… Okubo M Toromanovic A Ebara T Murase T Apolipoprotein C-II Tuzla: a novel large deletion in APOC2 caused by Alu-Alu homologous recombination in an infant with apolipoprotein C-II deficiency Clin Chim Acta 2015 438 148 153 10.1016/j.cca.2014.08.022 25172036 7. …

Control of Breast Cancer Pathogenesis by Histone Methylation and the Hairless Histone Demethylase.

Breast cancer is a highly heterogeneous disease, encompassing many subtypes that have distinct origins, behaviors, and prognoses. Although traditionally seen as a genetic disease, breast cancer is now also known to involve epigenetic abnormalities. Epigenetic regulators, such as DNA methyltransferases and histone-modifying enzymes, play essential roles in gene regulation and cancer development. Dysregulation of epigenetic regulator activity has been causally linked with breast cancer pathogenesis. Hairless (HR) encodes a 130-kDa transcription factor that is essential for development and tissue

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… Mo W , Liu Q , Lin CC , et al. mTOR inhibitors suppress homologous recombination repair and synergize with PARP inhibitors via regulating SUV39H1 in BRCA-proficient triple-negative breast cancer . Clin Cancer Res. 2016 ; 22 ( 7 ): 1699 - 1712 . 26546619 10.1158/1078-0432.CCR-15-1772 PMC4858320 65. …

Overcoming Oncogenic Mediated Tumor Immunity in Prostate Cancer.

Immunotherapy is being tested intensively in clinical trials for prostate cancer; it includes immune checkpoint inhibition, prostate specific antigen (PSA) vaccines and dendritic cell-based strategies. Despite increasing evidence for clinical responses, the consensus of multiple trials is that prostate cancers are poorly responsive to immunotherapy. Prostate cancer has a high degree of pathological and genetic heterogeneity compared to other cancer types, which may account for immunotherapeutic resistance. This hypothesis also implies that select types of prostate tumors may be differentially

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… A study of rucaparib in patients with metastatic castration-resistant prostate cancer and homologous recombination gene deficiency, NCT02952534 , 2019. 138. Jiao S. Xia W. Yamaguchi H. Wei Y. Chen M.K. Hsu J.M. Hsu J.L. Yu W.H. Du Y. Lee H.H. …

Bradyarrhythmias Associated with Oncologic Treatment-An Updated Review.

Background/Objectives: Bradyarrhythmias are an under-recognized component of cancer therapy-related cardiovascular toxicity. As survivorship improves and exposure to targeted and immune therapies increases, clinicians increasingly face clinically relevant sinus node dysfunction and atrioventricular (AV) conduction disease that may interrupt otherwise effective oncologic treatment. We aimed to synthesize evidence on the incidence, phenotype, mechanisms, and management of bradyarrhythmias across major anticancer drug classes. Methods: We performed a narrative review of PubMed and major clinical

A brief clinical genetics review: stepwise diagnostic processes of a monogenic disorder-hypertriglyceridemia.

The completion of the Human Genome Project and tremendous advances in automated high-throughput genetic analysis technologies have enabled explosive progress in the field of genetics, which resulted in countless discoveries of novel genes and pathways. Many phenotype- or disease-associated single nucleotide polymorphisms (SNPs) with a high statistical significance have been identified through numerous genome-wide association studies (GWAS), and various polygenic risk scoring (PRS) schemes have been proposed to identify individuals with a high risk for a certain trait or disorder. Meanwhile, me

Histone Deacetylase Inhibitors in Pediatric Brain Cancers: Biological Activities and Therapeutic Potential.

Brain cancers are the leading cause of cancer-related deaths in children. Biological changes in these tumors likely include epigenetic deregulation during embryonal development of the nervous system. Histone acetylation is one of the most widely investigated epigenetic processes, and histone deacetylase inhibitors (HDACis) are increasingly important candidate treatments in many cancer types. Here, we review advances in our understanding of how HDACis display antitumor effects in experimental models of specific pediatric brain tumor types, i.e., medulloblastoma (MB), ependymoma (EPN), pediatric

Гибридные эндосомные пальто содержат различные классы сортирующих нексинов.

Эндосомы представляют собой станции по сортировке белков, где многочисленные мембранные халаты образуют тюбуловодикулярные носители, экспортирующие белки в Голги, плазменную мембрану или эндолизосомальные отсеки. Предполагается, что отдельные классы сортировки нексинов образуют отдельные однородные халаты, определяющие эндосомные пути сортировки и их грузы. Snx3 и белки SNX-BAR Vps5-Vps17 принадлежат к различным классам сортировки-нексина. Они могут образовывать однородные, зависящие от ретромера пальто, которые различаются по конструкции и способам их соединения с мембраной и распознавания гр

XPO1: From basic research to clinical treatment (Review).

Exportin 1 (XPO1) is a key nuclear export receptor that mediates the nuclear export of tumor suppressor proteins and growth‑regulatory mRNAs from the nucleus to the cytoplasm. In several types of cancer, XPO1 is overexpressed or hyperactivated, leading to aberrant cytoplasmic sequestration of key tumor suppressors such as p53, p21, p73, FOXO and Rb. This mislocalization abrogates their nuclear transcriptional functions, disrupting cell cycle arrest, apoptosis and DNA repair, thereby promoting uncontrolled proliferation, survival and therapy resistance. Targeting XPO1 with selective inhibitors

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… Chemotherapy sensitization (high clinical maturity) SINE-mediated XPO1 blockade impairs DNA repair pathways, including homologous recombination (HR) and non-homologous end joining (NHEJ), rendering tumor cells more vulnerable to chemotherapy-induced DNA double-strand breaks. …

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

Challenges and innovations in CAR-T cell therapy: a comprehensive analysis.

Recent years have seen a marked increase in research on chimeric antigen receptor T (CAR-T) cells, with specific relevance to the treatment of hematological malignancies. Here, the structural principles, iterative processes, and target selection of CAR-T cells for therapeutic applications are described in detail, as well as the challenges faced in the treatment of solid tumors and hematological malignancies. These challenges include insufficient infiltration of cells, off-target effects, cytokine release syndrome, and tumor lysis syndrome. In addition, directions in the iterative development o

Therapeutic Perspectives on the Modulation of G-Protein Coupled Estrogen Receptor, GPER, Function.

Estrogens exert their physiological and pathophysiological effects via cellular receptors, named ERα, ERβ, and G-protein coupled estrogen receptor (GPER). Estrogen-regulated physiology is tightly controlled by factors that regulate estrogen bioavailability and receptor sensitivity, while disruption of these control mechanisms can result in loss of reproductive function, cancer, cardiovascular and neurodegenerative disease, obesity, insulin resistance, endometriosis, and systemic lupus erythematosus. Restoration of estrogen physiology by modulating estrogen bioavailability or receptor activity

Acute myeloid leukemia: from NGS, through scRNA-seq, to CAR-T. dissect cancer heterogeneity and tailor the treatment.

Acute myeloid leukemia (AML) is a malignant blood cancer with marked cellular heterogeneity due to altered maturation and differentiation of myeloid blasts, the possible causes of which are transcriptional or epigenetic alterations, impaired apoptosis, and excessive cell proliferation. This neoplasm has a high rate of resistance to anticancer therapies and thus a high risk of relapse and mortality because of both the biological diversity of the patient and intratumoral heterogeneity due to the acquisition of new somatic changes. For more than 40 years, the old gold standard "one size fits all"

Molecular factors associated with lung cancer in people living with HIV.

Lung cancer is the most common Non-AIDS-Defining Cancer (NADC) and a leading cause of cancer-related death in People Living With HIV (PLWH). Despite antiretroviral therapy, PLWH are at higher risk of developing cancer compared to the general population. This increased susceptibility reflects a combination of immunosuppression, chronic inflammation, smoking, and direct oncogenic effects of HIV proteins. Tat, gp120, and Nef modulate cell cycle control, apoptosis, epithelial-mesenchymal transition, angiogenesis, and immune evasion. Persistent HIV reservoirs in lung tissue (mainly effector memory

Chemotherapy-Mediated Complications of Wound Healing: An Understudied Side Effect.

Significance: Chemotherapy is a primary method to treat cancer. While chemotherapeutic drugs are designed to target rapidly dividing cancer cells, they can also affect other cell types. In the case of dermal cells and macrophages involved in wound healing, cytotoxicity often leads to the development of chronic wounds. The situation becomes even more severe when chemotherapy is combined with surgical tumor excision. Recent Advances: Despite its significant impact on patients' recovery from surgery, the issue of delayed wound healing in individuals undergoing chemotherapy remains inadequately ex

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… This results in synthetic lethality in BRCA1-associated cancer cells, which have dysfunction of another DNA repair pathway homologous recombination 41 | Pancreatic cancer 42 | Dorsal dermatosis of the hand 43 Larotrectinib 44 | Binding to Trk, thereby preventing neurotrophin–Trk interaction and Trk activation …

Simultaneous targeting of PI3Kδ and a PI3Kδ-dependent MEK1/2-Erk1/2 pathway for therapy in pediatric B-cell acute lymphoblastic leukemia.

B cell acute lymphoblastic leukemia (B-ALL) is the most common hematological malignancy diagnosed in children, and blockade of the abnormally activated PI3Kδ displayed promising outcomes in B cell acute or chronic leukemias, but the mechanisms are not well understood. Here we report a novel PI3Kδ selective inhibitor X-370, which displays distinct binding mode with p110δ and blocks constitutively active or stimulus-induced PI3Kδ signaling. X-370 significantly inhibited survival of human B cell leukemia cells in vitro, with associated induction of G1 phase arrest and apoptosis. X-370 abrogated b

Acute kidney injury: pathogenesis and therapeutic interventions.

Acute kidney injury (AKI) is a prevalent clinical condition that is associated with unacceptably high morbidity and mortality, as well as the development of chronic kidney disease (CKD). The pathogenesis of AKI is highly complex and heterogeneous, primarily attributed to metabolic disturbances arising from the disease itself and the administration of medications related to treatment. In recent years, AKI in cancer patients is highly concerned. The emergence of AKI caused injuries and dysfunction of remote organs but also enhanced the health-care costs. It's essential for early recognition of A

IRF4 Enhances Radiosensitivity of Cervical Cancer by Inhibiting the PI3K/Akt/mTOR Pathway to Regulate Autophagy.

Interferon regulatory factor 4 (IRF4), a critical member of the IRF transcription factor family, harbors an elusive biological role in cervical cancer. Through immunohistochemical staining and immunoblotting, CCK-8 viability assays, EdU incorporation tests, clonogenic survival experiments, flow cytometric detection, transmission electron microscopy, immunofluorescence staining and heterotopic transplantation model, we discover that IRF4 expression was markedly decreased in cervical cancer tissues and cell lines compared to normal controls. Overexpression of IRF4 suppressed proliferation, migra

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… P., and Dittmann K., “Depletion of Akt1 and Akt2 Impairs the Repair of Radiation‐Induced DNA Double Strand Breaks via Homologous Recombination,” International Journal of Molecular Sciences 20 (2019): 6316, 10.3390/ijms20246316. 30. Ogrodnik M., Carlos Acosta J., Adams P. …

Протеолипид Протеин-1 и его периферальная изоформа DM20 у пациентов с аутоиммунными расстройствами CNS.

: Антитела для протеолипидного белка-1 (PLP1-IgG), крупного центрального миелина, также выраженного в периферической нервной системе (PNS) в качестве изоформы DM20, ранее были идентифицированы главным образом у пациентов с множественным склерозом (MS), с неясными клиническими последствиями. Однако большинство исследований основывалось на неконформационных иммуномассах и охватывало лишь небольшое число пациентов с аутоиммунными расстройствами демиелионации (АДД), не относящимися к ПС CNS. Мы стремились изучить конформацию PLP1-IgG во всем спектре ОДЗ.МЕТОДЫ: Мы разработали новый анализ на основ

Дело о том, что скрытая и литичная инфекция Эпштейна-Барра была направлена на множественный склероз.

Вирус Эпштейн-Барр (EBV) тесно связан с множественным склерозом (MS). Он, вероятно, сыграет причинно-следственную роль в патогенезе MS, возможно, путем инициирования автономного иммунитета с помощью молекулярной имитации, автоантигенного представления или регулирования иммунной дистрибьюции. С другой стороны, имеющиеся данные подтверждают прямую роль ЭБВ в стимулировании деятельности по болезням MS посредством скрытых литических инфекций в циклическом режиме либо в рамках ЦНС, либо на периферии. Мы обращаем особое внимание на недавние иммунологические и вирологические выводы, подтверждающие ро

Benefits of Chimeric Antigen Receptor T-Cell Therapy for B-Cell Lymphoma.

Objective: The aim was to study the benefits and risks of anti-CD19 chimeric antigen receptor (CAR) T-cells in adults with B-cell lymphoma. Methods: From October 2015 to October 2021, we treated five patients with B-cell lymphoma, comprising two with mantle cell lymphoma, one case of Burkitt lymphoma, one case of diffuse large B-cell lymphoma, and one case of chronic lymphocytic leukemia/small lymphocytic lymphoma. The patients were given the FC regimen 5 days before the infusion of anti-CD19 CAR T-cells. The median total number of CAR T-cells infusions was 350*10^6 (88*10^6-585*10^6). Results