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Biomimetic materials for medical applications.

AbstractRecent advances in biomedical research have facilitated the exploration of biomimetic materials and their potential for diagnosing and treating diseases. This review synthesizes reports of recent research into biomimetic materials and provides a focused analysis of their therapeutic and diagnostic efficacy across multiple physiological systems, including the locomotor, digestive, respiratory, urinary, endocrine, nervous, integumentary, hematopoietic, and circulatory systems. These findings highlight the transformative potential of these materials in the management of systemic diseases.

Exportin 1 as a Therapeutic Target to Overcome Drug Resistance in Lung Cancer.

Non-small cell lung cancer (NSCLC) remains the leading cause of cancer-related mortality, with therapeutic resistance continuing to limit long-term responses. Among emerging resistance mechanisms, dysregulation of nucleocytoplasmic transport has gained attention for its ability to inactivate tumor suppressor pathways. Exportin 1 (XPO1), the primary nuclear export protein, is frequently overexpressed in NSCLC and promotes the cytoplasmic mislocalization of proteins involved in cell cycle control, apoptosis, and DNA repair. This includes key regulators such as p53, FOXO, and RB, whose inactivati

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… In vitro and in vivo analyses, including patient-derived cells, tumor organoids, and xenograft models, revealed strong synergy between SINE and ALK-TKIs, characterized by G1 cell-cycle arrest, p53 accumulation, and apoptosis. …

The Precision Revolution in Hematologic Malignancies: A Decade of Transformative Immunotherapies and Targeted Agents.

This review describes the dramatic transformation that has occurred in the last ten years in the therapeutic landscape for hematologic malignancies, such as leukemias, lymphomas, myelomas, and myelodysplastic syndromes. Treatment paradigms have quickly changed from depending solely on cytotoxic chemotherapy to embracing precision medicine, driven by a previously unprecedented understanding of disease biology and precise molecular changes. The development of powerful immunotherapies (such as CAR T-cell therapy and bispecific antibodies) and innovative targeted agents (like BTK inhibitors, BCL-2

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… The development of patient-derived models, including organoids and xenografts, provides opportunities for functional testing of treatment approaches and combination strategies. …

SAE1 May Play a Pro-Carcinogenic Role in Pancreatic Adenocarcinoma: A Comprehensive Study Integrating Multiple Pieces of Evidence.

SAE1, a key factor in tumour development, has not been thoroughly examined in pancreatic adenocarcinoma (PAAD), a cancer with high incidence and poor prognosis. We conducted a comprehensive study, integrating mRNA data, immunohistochemistry, CRISPR-modified cell line analysis and single-cell RNA sequencing to assess SAE1's role in PAAD. We also used ChIP-Seq to explore SAE1's transcriptional regulation and analysed clinical data, drug sensitivity and molecular docking models. SAE1 mRNA was significantly overexpressed in PAAD, with a substantial impact on cell proliferation and migration. Funct

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… Cao C., Lan X., Shang B., et al., “Phenotypical Screening on Metastatic Prcc‐Tfe3 Fusion Translocation Renal Cell Carcinoma Organoids Reveals Potential Therapeutic Agents,” Clinical and Translational Oncology 24, no. 7 (2022): 1333–1346, 10.1007/s12094-021-02774-8. 74. …

The Crosstalk Between B Cells and the Skeletal System During Development, Aging, and in Pathological Conditions.

Purpose of reviewIn this review, we describe the interaction between B cells and bone during development, aging, and disease. RECENT FINDINGS: There is an increased interest in identifying the mechanisms of interaction between immune cells and the skeletal system. This knowledge is critical for understanding the pathology of autoimmune diseases and developing therapeutic interventions. Humoral immunity depends on B cells and their secreted immunoglobulin (antibodies). Earlier studies described B cell influence on the skeletal system, with a major focus on the role of plasma cells and secreted

Устранение неврологических расстройств путем борьбы с нейродегенеративными ассоциированными ферментами: естественные и синтетические молекулы.

Неврологические расстройства, включая нейродегенеративные и нейро-воспалительные заболевания, создают значительные проблемы в области здравоохранения и клинических проблем. Недавние исследования показали, что различные ферменты играют ключевую роль в наступлении и развитии этих расстройств. В этом обзоре изучается терапевтический потенциал адресации этих ферментов естественными и синтетическими молекулами. К таким заболеваниям, как болезнь Альцгеймера, болезнь Паркинсона и множественный склероз, причастны основные ферменты, включая ацетилхолинестеразу, оксидазу моноамина, бета-секретазу, тау к

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… With superparamagnetic iron oxide nanoparticles (SPIONs), extracellular vesicles from human forebrain organoids have been labeled, allowing for real-time MRI tracking to track the course of the disease and evaluate the efficacy of treatment [ 281 ]. …

Anaplastic thyroid cancer cells reduce CD71 levels to increase iron overload tolerance.

BackgroundFollicular thyroid cancer (FTC) is a prevalent form of differentiated thyroid cancer, whereas anaplastic thyroid cancer (ATC) represents a rare, fast-growing, undifferentiated, and highly aggressive tumor, posing significant challenges for eradication. Ferroptosis, an iron-dependent cell death mechanism driven by the excessive production of reactive oxygen species and subsequent lipid peroxidation, emerges as a promising therapeutic strategy for cancer. It has been observed that many cancer cells exhibit sensitivity to ferroptosis, while some other histotypes appear to be resistant,

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… Chen D Su X Zhu L Jia H Han B Chen H Papillary thyroid cancer organoids harboring BRAF(V600E) mutation reveal potentially beneficial effects of BRAF inhibitor-based combination therapies J Transl Med 2023 21 1 9 10.1186/s12967-022-03848-z 36624452 PMC9827684 56. …

Repurposing Drugs for Acute Myeloid Leukemia: A Worthy Cause or a Futile Pursuit?

Acute myeloid leukemia (AML) is a clinically and genetically heterogenous malignancy of myeloid progenitor cells that affects patients of all ages. Despite decades of research and improvement in overall outcomes, standard therapy remains ineffective for certain subtypes of AML. Current treatment is intensive and leads to a number of secondary effects with varying results by patient population. Due to the high cost of discovery and an unmet need for new targeted therapies that are well tolerated, alternative drug development strategies have become increasingly attractive. Repurposing existing d

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… Technologies such as 3-D organoids are emerging as models better able to preserve the character of tumor cells and their microenvironment [ 100 ]. …

Рецепт 1 в диабете и его хронические осложнения: механизмы сигнализации и новые терапевтические достижения.

Диабет моллюсков (DM) — системное метаболическое расстройство, характеризующееся хронической гипергликемией, которая может оказывать воздействие на почки, сетчатку, периферийные нервы и сердечно-сосудистую систему, что в конечном счете приводит к многочисленным хроническим осложнениям. 1 (PAR1) — G-белковый рецептор, приводимый в действие через каноническое декольте, например тромбинированный декольте и неканоническое декольте, например, декольте с помощью активированного белка C или матрицы Metalloproteinase-1. Эти режимы активации инициируют различные каналы подачи сигналов вниз по течению,

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… Future studies should use tissue-specific conditional knockout models, multi-complication animal models, organoids, and multi-omics approaches to clarify PAR1-centered mechanisms. …

CBD promotes antitumor activity by modulating tumor immune microenvironment in HPV associated head and neck squamous cell carcinoma.

IntroductionMarijuana use is associated with HPV-positive head and neck squamous cell carcinoma (HNSCC). However, cannabinoid use continues to increase in the US general population for recreational purposes as well as in cancer patients for palliative care. In this study, we explored the role of cannabidiol (CBD) in promoting anti-tumor activity by modulating immune response in HPV-positive HNSCC by using pre-clinical models.MethodsThe anti-proliferative effect of CBD on HPV-positive HNSCC cells was evaluated through BrdU, apoptosis and migration analyses, followed by western blot analysis to

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… Rimonabant kills colon cancer stem cells without inducing toxicity in normal colon organoids . Front Pharmacol . ( 2017 ) 8 : 949 . doi: 10.3389/fphar.2017.00949 29354056 PMC5758598 13 Miyato H Kitayama J Yamashita H Souma D Asakage M Yamada J . …

Insight and Recommendations for Fragile X-Premutation-Associated Conditions from the Fifth International Conference on FMR1 Premutation.

The premutation of the fragile X messenger ribonucleoprotein 1 (FMR1) gene is characterized by an expansion of the CGG trinucleotide repeats (55 to 200 CGGs) in the 5' untranslated region and increased levels of FMR1 mRNA. Molecular mechanisms leading to fragile X-premutation-associated conditions (FXPAC) include cotranscriptional R-loop formations, FMR1 mRNA toxicity through both RNA gelation into nuclear foci and sequestration of various CGG-repeat-binding proteins, and the repeat-associated non-AUG (RAN)-initiated translation of potentially toxic proteins. Such molecular mechanisms contribu

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… Brain organoids are three-dimensional mini-organs derived from PSCs that mimic the cellular composition and architecture of specific brain regions [ 160 ]. … Moreover, brain organoids could extend our knowledge on other aspects of the disease, such as CGG somatic instability and the generation of mosaicisms for expansion size and/or methylation, in a multicellular setting that more closely resembles the developing human brain. 2.6. …

Managing allorejection in off-the-shelf CAR-engineered cell therapies.

Chimeric antigen receptor (CAR)-engineered T (CAR-T) cell therapy has revolutionized the treatment of various diseases, including cancers and autoimmune disorders. However, all US Food and Drug Administration (FDA)-approved CAR-T cell therapies are autologous, and their widespread clinical application is limited by several challenges, such as complex individualized manufacturing, high costs, and the need for patient-specific selection. Allogeneic off-the-shelf CAR-engineered cell therapy offers promising potential due to its immediate availability, consistent quality, potency, and scalability

Stackelberg Evolutionary Games of Cancer Treatment: What Treatment Strategy to Choose if Cancer Can be Stabilized?

We present a game-theoretic model of a polymorphic cancer cell population where the treatment-induced resistance is a quantitative evolving trait. When stabilization of the tumor burden is possible, we expand the model into a Stackelberg evolutionary game, where the physician is the leader and the cancer cells are followers. The physician chooses a treatment dose to maximize an objective function that is a proxy of the patient's quality of life. In response, the cancer cells evolve a resistance level that maximizes their proliferation and survival. Assuming that cancer is in its ecological equ

Emerging agents that target signaling pathways to eradicate colorectal cancer stem cells.

Colorectal cancer (CRC) represents the third most commonly diagnosed cancer and the second leading cause of cancer death worldwide. The modern concept of cancer biology indicates that cancer is formed of a small population of cells called cancer stem cells (CSCs), which present both pluripotency and self-renewal properties. These cells are considered responsible for the progression of the disease, recurrence and tumor resistance. Interestingly, some cell signaling pathways participate in CRC survival, proliferation, and self-renewal properties, and most of them are dysregulated in CSCs, includ

COVID-19 Therapeutic Options Under Investigation.

Since its emergence in China in December 2019, COVID-19 has quickly spread around the globe causing a pandemic. Vaccination or the development of herd immunity seems the only way to slow down the spread of the virus; however, both are not achievable in the near future. Therefore, effective treatments to mitigate the burden of this pandemic and reduce mortality rates are urgently needed. Preclinical and clinical studies of potential antiviral and immunomodulatory compounds and molecules to identify safe and efficacious therapeutics for COVID-19 are ongoing. Two compounds, remdesivir, and dexame

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… A clinical-grade human recombinant soluble ACE2 (hrsACE2) showed a significant inhibitory effect of viral growth during the early stages of SARS-CoV-2 infection in Vero E6 cells, human blood vessel organoids, and human kidney organoids expressing ACE-2 receptor ( Monteil et al., 2020 ). …

Energy metabolism in health and diseases.

Energy metabolism is indispensable for sustaining physiological functions in living organisms and assumes a pivotal role across physiological and pathological conditions. This review provides an extensive overview of advancements in energy metabolism research, elucidating critical pathways such as glycolysis, oxidative phosphorylation, fatty acid metabolism, and amino acid metabolism, along with their intricate regulatory mechanisms. The homeostatic balance of these processes is crucial; however, in pathological states such as neurodegenerative diseases, autoimmune disorders, and cancer, exten

Протеиновая пальмитиоляция в гематологическое облучение: механистические связи с липидным метаболическим перепрограммированием и резистентностью к терапии.

Протеиновая пальмитиолация стала центральным постпереходным механизмом, регулирующим локализацию белков, стабильность и трансдукцию сигналов. В гематологических галактиках эта динамическая модификация находится на пересечении липидного метаболического перепрограммирования, взаимодействия между опухолью и иммуном и терапевтического сопротивления. Здесь мы рассматриваем вопрос о том, как дисрегулированные пальмитоилпереносазы и депальмитолазы изменяют метаболические ферменты, липидные переносчики, липидно-дрофтовые белки, онкогенные сигнальные компоненты и молекулы иммунного регулирования, созда

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… Humanized mouse models and patient-derived organoids offer more physiologically relevant platforms for studying palmitoylation in the tumor microenvironment and testing inhibitors ( 87 – 89 ). …

Комплексный метаанализ транскриптомов астроцитов человека показывает, что в ответ на подстрекательские и иммунные стимулы потенциальные признаки повторяются.

Астроциты являются ключевыми регуляторами подстрекательской и иммунной реакции в центральной нервной системе, особенно в патологических условиях. Мы проводили систематический поиск баз данных НКОИ по ГЭП и ЭНА в целях выявления транскриптивных исследований стимулируемых астроцитов. Этот метаанализ объединяет 11 наборов данных RNA-Seq, охватывающих в общей сложности 153 пробы (91 стимулируемый и 62 средства контроля), подвергающиеся воздействию провоспалительных стимулов, таких, как цитокины (TNF-α, IL-6 и IL-1β), пальмовая кислота и патогены, такие, как SARS-COV-2 и Borrelia burborferi. Благод

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… Neuropilin-1 mediates SARS-CoV-2 infection of astrocytes in brain organoids, inducing inflammation leading to dysfunction and death of neurons. mBio 13 : e02308-22 . 10.1128/mbio.02308-22 36314791 PMC9765283 Koper O. M. Kamińska J. Sawicki K. Kemona H. ( 2018 ). …

Обзор " Метформин " и " нейродегенерация: всеобъемлющий обзор " .

В рамках этого всеобъемлющего обзора изучается терапевтический потенциал метаформина, хорошо зарекомендовавшего себя лекарство от диабета, при лечении нейродегенеративных расстройств. Первоначально использованная в качестве первой линии обработки для типа 2 диабет, недавние исследования начали изучать эффекты метаформина, выходящие за рамки метаболических расстройств, особенно его нейрозащитные способности против таких заболеваний, как болезнь Паркинсона, болезнь Альцгеймера, болезнь Хантингтона и множественный склероз. Ключевые выводы показывают, что нейрозащитный эффект метформина действует

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… Human brain organoids, microfluidic organ-on-chip platforms, and CRISPR-based genome editing are advancing disease modeling and therapeutic development, allowing better understanding of metformin’s effects on neural tissue [ 130 , 319 , 320 ]. …

Fertility Preservation in Female Patients with Cancer. Part I: Challenges and Future Prospects in Developing Countries; A Narrative Review Study.

While international guidelines on oncofertility practice have been published in developed countries, there is limited information available on oncofertility practice in developing countries, which often face limitations in their cancer health support networks. As survival rates improve in the field of cancer and other diseases, there is a growing need for stronger oncofertility services in developing countries. Given that 50% of cancer patients are under the age of 65, many of these patients are of reproductive age and preserving their fertility health prior to starting treatment is valuable.

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… In vitro, culture of oocytes, Induction of female germ cells from pluripotent stem cells (PSC), Ovaria-related organoids construction, and artificial ovary construction are these techniques. …