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Liquid biopsy and PCR-free ultrasensitive detection systems in oncology (Review).

In oncology, liquid biopsy is used in the detection of next-generation analytes, such as tumor cells, cell-free nucleic acids and exosomes in peripheral blood and other body fluids from cancer patients. It is considered one of the most advanced non-invasive diagnostic systems to enable clinically relevant actions and implement precision medicine. Medical actions include, but are not limited to, early diagnosis, staging, prognosis, anticipation (lead time) and the prediction of therapy responses, as well as follow-up. Historically, the applications of liquid biopsy in cancer have focused on cir

NAD+‒circadian rhythm coupling in dementia.

The circadian rhythm system and sleep coordinate whole-body functions across the 24-h cycle, yet these rhythms progressively deteriorate with neurodegenerative diseases, including dementia. Growing evidence indicates that nicotinamide adenine dinucleotide (NAD+) interacts with the circadian system through multiple molecular pathways and that NAD+ levels decline with dementia. In this review, we synthesize current evidence on the bidirectional relationship between NAD+ metabolism and circadian regulation in several dementia disorders, emphasizing the key circadian pathways, the nicotinamide pho

ISEV2019 Abstract Book

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Nanotechnology-Driven Cancer Therapies for Precision Oncology: Advances and Clinical Outlook.

Cancer continues to pose a global health challenge, with conventional therapies often limited by non-specific toxicity, drug resistance, and an inadequate therapeutic index. Nanotechnology offers transformative opportunities by enabling targeted drug delivery, improved pharmacokinetics, and integrated diagnostic-therapeutic platforms (termed nanotheranostics). This review highlights key nanocarrier systems including liposomes, polymeric nanoparticles, dendrimers, inorganic nanostructures, carbon-based materials, extracellular vesicles, and hybrid platforms with a focus on human studies and cli

Advances in Radionuclides and Radiolabelled Peptides for Cancer Therapeutics.

Radiopharmaceutical therapy, which can detect and treat tumours simultaneously, was introduced more than 80 years ago, and it has changed medical strategies with respect to cancer. Many radioactive radionuclides have been developed, and functional, molecularly modified radiolabelled peptides have been used to produce biomolecules and therapeutics that are vastly utilised in the field of radio medicine. Since the 1990s, they have smoothly transitioned into clinical application, and as of today, a wide variety of radiolabelled radionuclide derivatives have been examined and evaluated in various

Machine Learning: A New Prospect in Multi-Omics Data Analysis of Cancer.

Cancer is defined as a large group of diseases that is associated with abnormal cell growth, uncontrollable cell division, and may tend to impinge on other tissues of the body by different mechanisms through metastasis. What makes cancer so important is that the cancer incidence rate is growing worldwide which can have major health, economic, and even social impacts on both patients and the governments. Thereby, the early cancer prognosis, diagnosis, and treatment can play a crucial role at the front line of combating cancer. The onset and progression of cancer can occur under the influence of

The DNA methylation landscape of multiple myeloma shows extensive inter- and intrapatient heterogeneity that fuels transcriptomic variability.

BackgroundCancer evolution depends on epigenetic and genetic diversity. Historically, in multiple myeloma (MM), subclonal diversity and tumor evolution have been investigated mostly from a genetic perspective.MethodsHere, we performed an analysis of 42 MM samples from 21 patients by using enhanced reduced representation bisulfite sequencing (eRRBS). We combined several metrics of epigenetic heterogeneity to analyze DNA methylation heterogeneity in MM patients.ResultsWe show that MM is characterized by the continuous accumulation of stochastic methylation at the promoters of development-related

Revealing G4 Structures as Drug Targets: Exploring the Potential of Novel Therapeutic Agents.

G-quadruplex (G4) structures represent noncanonical secondary formations found in DNA and RNA. Recent research reveals that G4s are abnormally enriched in various cancers, with closely linked to malignancy, metastatic potential, and prognosis. These structures have emerged as promising biomarkers for cancer with notable clinical relevance. Concurrently, investigations into compounds that selectively recognize DNA or RNA G4s as potential anticancer agents offer new avenues for early cancer diagnosis and therapeutic strategies. This review systematically analyzes the chemical structural characte

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… Nevertheless, these technologies rely heavily on the targeting accuracy of G4-specific antibodies, which commonly exhibit issues such as nonspecific binding, cross-recognition of other nucleic acid secondary structures, and low signal-to-noise ratios in high-chromatin backgrounds, raising concerns about …

ISEV2018 абстрактная книга

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IDH Mutations in Glioma: Molecular, Cellular, Diagnostic, and Clinical Implications.

In 2021, the World Health Organization classified isocitrate dehydrogenase (IDH) mutant gliomas as a distinct subgroup of tumors with genetic changes sufficient to enable a complete diagnosis. Patients with an IDH mutant glioma have improved survival which has been further enhanced by the advent of targeted therapies. IDH enzymes contribute to cellular metabolism, and mutations to specific catalytic residues result in the neomorphic production of D-2-hydroxyglutarate (D-2-HG). The accumulation of D-2-HG results in epigenetic alterations, oncogenesis and impacts the tumor microenvironment via i

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… While MRS is both highly sensitive and specific, this method may be limited by a low signal-to-noise ratio which requires lesions to be at least several milliliters in volume and sufficiently distant from fluid–brain or air–fluid interfaces. …

Obesity as a Multifactorial Chronic Disease: Molecular Mechanisms, Systemic Impact, and Emerging Digital Interventions.

Obesity is a multifactorial chronic disease resulting from complex genetic, molecular, environmental, and behavioral interactions. Its prevalence rises worldwide, affecting cardiovascular, metabolic, oncological, hepatic, respiratory, and skeletal health. Beyond caloric excess, genetic predisposition, epigenetic modifications, gut microbiota dysbiosis, endocrine-disrupting agents, circadian misalignment, and intergenerational and prenatal influences are critical determinants of obesity risk. Core pathophysiological mechanisms include insulin resistance, dyslipidemia, chronic low-grade inflamma

Autonomic control of ventricular function in health and disease: current state of the art.

PurposeCardiac autonomic dysfunction is one of the main pillars of cardiovascular pathophysiology. The purpose of this review is to provide an overview of the current state of the art on the pathological remodeling that occurs within the autonomic nervous system with cardiac injury and available neuromodulatory therapies for autonomic dysfunction in heart failure.MethodsData from peer-reviewed publications on autonomic function in health and after cardiac injury are reviewed. The role of and evidence behind various neuromodulatory therapies both in preclinical investigation and in-use in clini

miRNAs and lncRNAs as Novel Therapeutic Targets to Improve Cancer Immunotherapy.

Immunotherapy is presently one of the most promising areas of investigation and development for the treatment of cancer. While immune checkpoint-blocking monoclonal antibodies and chimeric antigen receptor (CAR) T-cell-based therapy have recently provided in some cases valuable therapeutic options, the goal of cure has not yet been achieved for most malignancies and more efforts are urgently needed. Noncoding RNAs (ncRNA), including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), regulate several biological processes via selective targeting of crucial molecular signaling pathways. Recent

Biomarker-Driven Approaches to Bone Metastases: From Molecular Mechanisms to Clinical Applications.

Bone metastases represent a critical complication in oncology, frequently indicating advanced malignancy and substantially reducing patient quality of life. This review provides a comprehensive analysis of the complex interactions between tumor cells and the bone microenvironment, emphasizing the relevance of the "seed and soil" hypothesis, the RANK/RANKL/OPG signaling axis, and Wnt signaling pathways that collectively drive metastatic progression. The molecular and cellular mechanisms underlying the formation of osteolytic and osteoblastic lesions are examined in detail, with a particular foc

СНМИКОН 2024 Резюме

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Освещение нанотерапевтики с точными глазами: от оптического к радионаностантике.

Рак по-прежнему относится к числу самых смертоносных заболеваний во всем мире, унося много жизней из-за высоких показателей смертности. Химиотерапия, являющаяся одной из основных форм лечения рака, приносит значительные выгоды, однако ей мешают недостатки, которые ставят под угрозу качество жизни пациентов. Таким образом, разработка альтернатив минимально инвазивному лечению по-прежнему представляет собой серьезную проблему. Среди них наноматериалы, легкая фототерапия, включая фотодинамическую терапию, фототермальную терапию и радиотерапию, являются перспективными вариантами, обеспечивающими т

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… When working in the NIR window, NIR light imaging can provide superior performance in spatiotemporal resolution, signal-to-noise ratio, and imaging depth than Vis light imaging. …

Interpreting Randomized Controlled Trials.

This article describes rationales and limitations for making inferences based on data from randomized controlled trials (RCTs). We argue that obtaining a representative random sample from a patient population is impossible for a clinical trial because patients are accrued sequentially over time and thus comprise a convenience sample, subject only to protocol entry criteria. Consequently, the trial's sample is unlikely to represent a definable patient population. We use causal diagrams to illustrate the difference between random allocation of interventions within a clinical trial sample and tru

Progress of Cancer Nanotechnology as Diagnostics, Therapeutics, and Theranostics Nanomedicine: Preclinical Promise and Translational Challenges.

Early detection, right therapeutic intervention, and simultaneous effectiveness mapping are considered the critical factors in successful cancer therapy. Nevertheless, these factors experience the limitations of conventional cancer diagnostics and therapeutics delivery approaches. Along with providing the targeted therapeutics delivery, advances in nanomedicines have allowed the combination of therapy and diagnostics in a single system (called cancer theranostics). This paper discusses the progress in the pre-clinical and clinical development of therapeutics, diagnostics, and theranostics canc

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… This increases the signal-to-noise ratio, permitting NPs to gather at the tumor site and the cancerous tissue to be highlighted more as compared to the adjacent normal tissue, thus proving it to be highly beneficial. …

Протеиновый ингибитор смягчает белку в мышах Lmx1b с дисфункциональной доменой LIM.

Мутации в коэффициенте транскрипции LMX1B были определены в качестве причины синдрома автосомали-доминантного заболевания гвозди-пареллы. Он проявляется в небольших или отсутствующих пателле и диспластике или в отсутствии пальцев и ногтей, но прогноз пациентов определяется появлением почечных симптомов из-за дисфункциональных подоцитов. Патогенетические механизмы, ведущие к повреждению подоцита, и их связь с конкретными мутациями в гене LMX1B не понимаются, что препятствует разработке конкретных терапевтических стратегий. Здесь мы идентифицируем патогенетический механизм, затрагивающий многих

PROCEEDINGS 32nd Symposium ESVN-ECVN WROCLAW, POLAND 12th-14th September 2019. Selected research communications of the 32nd Symposium of the ESVN-ECVN Wroclaw, Poland 12th to 14th September 2019.

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