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[Study on the effect and mechanism of recombinant human intestinal trefoil factor on intestinal mucosal injury and repair in burned mice].

Objective: To establish an efficient human intestinal trefoil factor (ITF) recombinant expression and purification strategy and to observe the effect of recombinant human ITF (rhITF) on intestinal mucosal injury and repair in burned rats and to explore the mechanism. Methods: The experimental research method was applied. New yeast expression vector pGAPZαA and yeast X33 were used to express recombinant ITF. The protein was purified by metal chelation affinity chromatography and anion and cation exchange chromatography. The rhITF was identified by non-reductive sodium dodecyl sulfate polyacryla

[Design of ZIF-L-based boronate affinity molecularly imprinted material and its application in the detection of ribavirin in environmental water].

Ribavirin （RBV） is a broad-spectrum antiviral drug. It is widely used to treat various viral infections. However， its entry into water bodies can cause serious harm to both the ecological environment and human health. Thus， there is an urgent need for a simple and efficient method to detect RBV for detection purposes. In this study， a two-dimensional ZIF material （ZIF-L） served as the matrix， RBV as the template molecule， and 3-aminophenylboronic acid （APBA） as the functional monomer， using its self-polymerization ability to form a molecularly imprinted layer on the surface of ZIF-L. Imprinted

[Recent advances in the use of graphene for sample preparation].

Sample preparation is playing an increasingly important role in sample analysis. The enrichment efficiency of the target and the removal effect of the sample matrix are strongly dependent on the extraction material. Therefore, the development of efficient extraction materials is an important research focus in the field of sample preparation. Various advanced materials such as nanomaterials, mesoporous materials, ionic liquids, aerogels, carbon materials, metal-organic frameworks, and covalent organic frameworks have been introduced to produce a diverse range of extraction materials for sample

Interferon-Based Biopharmaceuticals: Overview on the Production, Purification, and Formulation.

The advent of biopharmaceuticals in modern medicine brought enormous benefits to the treatment of numerous human diseases and improved the well-being of many people worldwide. First introduced in the market in the early 1980s, the number of approved biopharmaceutical products has been steadily increasing, with therapeutic proteins, antibodies, and their derivatives accounting for most of the generated revenues. The success of pharmaceutical biotechnology is closely linked with remarkable developments in DNA recombinant technology, which has enabled the production of proteins with high specific

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… Affinity chromatography allows a specific type of protein to be isolated from a mixture of proteins contaminants and is based on the affinity of proteins to specific ligands, for instance, metal cations or antibodies, respectively, in IMAC or immunoaffinity chromatography [ 40 ]. … Zheng and coauthors [ 103 ] reported the purification of IFNλ-1 through four purification steps: ammonium sulfate precipitation, cation exchange chromatography, affinity chromatography, and SEC (Sepharyl S-100 gel). …

Mechanism of Action of Hedyotis diffusa Extract in a Rat Model of Acute Lung Injury Based on Transcriptomic Analysis.

OBJECTIVE: This study established a rat model of lipopolysaccharide (LPS)-induced acute lung injury (ALI) to evaluate pathological damage, collagen deposition, inflammatory cytokine levels, and key gene/protein expression following Hedyotis diffusa water extract (HDWE) intervention. Combined with ultra-high-performance liquid chromatography-quadrupole Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS), transcriptomic analysis, and molecular simulation, this study identified the bioactive components of HDWE, evaluated their potential interactions with ALI-related targets, and ex

[Using activity-based protein profiling method to explore the antitumor targets of spiramycin derivatives].

Carrimycin is a macrolide antibiotic widely used in the pharmaceutical and clinical fields， with its primary composition consisting of three distinct derivatives of spiramycin. For decades， macrolides like carrimycin have been valued for their efficacy against Gram-positive bacteria and certain atypical pathogens. However， as research has progressed， recent studies have revealed that carrimycin， along with various other structurally modified spiramycin derivatives， exhibits significant antitumor activity in multiple experimental models. This finding suggests that the spiramycin molecular scaff

Harnessing CAR-Extracellular Vesicles for Next-Generation Cancer Immunotherapy.

Cancer immunotherapy has experienced substantial progress in recent years, particularly with the advancement of chimeric antigen receptor (CAR) technology, which enables immune cells to selectively target tumor-associated antigens. CARs, now in their fifth generation, are engineered by combining monoclonal antibody fragments with signaling and co-stimulatory domains and have been successfully applied to T cell, natural killer (NK) cell, and macrophage-based therapies. Notable clinical successes, such as tisagenlecleucel and lisocabtagene maraleucel underscore the therapeutic potential of CAR-T

Oxidized Lipids in Persistent Pain States.

Chemotherapy, nerve injuries, or diseases like multiple sclerosis can cause pathophysiological processes of persistent and neuropathic pain. Thereby, the activation threshold of ion channels is reduced in peripheral sensory neurons to normally noxious stimuli like heat, cold, acid, or mechanical due to sensitization processes. This leads to enhanced neuronal activity, which can result in mechanical allodynia, cold allodynia, thermal hyperalgesia, spontaneous pain, and may initiate persistent and neuropathic pain. The treatment options for persistent and neuropathic pain patients are limited; f

Alendronate-coated long-circulating liposomes containing 99mtechnetium-ceftizoxime used to identify osteomyelitis.

Osteomyelitis is a progressive destruction of bones caused by microorganisms. Inadequate or absent treatment increases the risk of bone growth inhibition, fractures, and sepsis. Among the diagnostic techniques, functional images are the most sensitive in detecting osteomyelitis in its early stages. However, these techniques do not have adequate specificity. By contrast, radiolabeled antibiotics could improve selectivity, since they are specifically recognized by the bacteria. The incorporation of these radiopharmaceuticals in drug-delivery systems with high affinity for bones could improve the

Antibody-Drug Conjugates: Ushering in a New Era of Cancer Therapy.

Antibody-drug conjugates (ADCs) have provided new therapeutic options and significant promise for patients with cancer, particularly where existing treatments are limited. Substantial effort in ADC development is underway globally, with 13 ADCs currently approved and many more in development. The therapeutic benefits of ADCs leverage the ability to selectively target cancer cells through antibody binding, resultant relative sparing of non-malignant tissues, and the targeted delivery of a cytotoxic payload. Consequently, this drug class has demonstrated activity in multiple malignancies refract

Maternal fluoxetine treatment in the postpartum period: effects on platelet serotonin and plasma drug levels in breastfeeding mother-infant pairs.

OBJECTIVE: Postpartum major depression, a frequently (10%) occurring complication of childbirth, adversely affects the mother's functioning, the mother-infant relationship, and the child's subsequent development and propensity for later psychopathology. Although selective serotonin reuptake inhibitors (SSRIs) are effective in treating postpartum depression, concerns have been raised regarding their use in lactating women. Although plasma drug levels of infants who are exposed to SSRIs through breast milk are low compared with those typically seen in patients, infant levels in some reports do s

Latest advances in extracellular vesicles: from bench to bedside.

Extracellular vesicles (EVs) are small membraned vesicles and approximately 50-150 nm in diameter. Almost all of the type of cells releases the EVs and circulates in the body fluids. EVs contain multiple functional components, such as mRNAs, microRNAs (miRNAs), DNAs, and proteins, which can be transferred to the recipient cells, resulting in phenotypic changes. Recently, EV research has focused on their potential as a drug delivery vehicle and in targeted therapy against specific molecules. Moreover, some surface proteins are specific to particular diseases, and therefore, EVs also have promis

Структурное и механистическое профилирование модулятуры Hurr1 vidofludimus позволяет проектировать лиганд на основе структуры.

В центре биомедицинских исследований находится фактор нейрозащиты, связанный с ядерным рецептором 1 (Nurr1, NR4A2) для его многообещающей нейрозащитной роли в болезни Паркинсона, болезни Альцгеймера и множественном склерозе. Его деятельность может контролироваться лигандами, предлагающими доступ к фармакологической модуляции Hurr1. Вместе с тем связующие эпитопы и механизмы молекулярной активации синтетических активаторов Hurr1 по-прежнему остаются труднодостижимыми, но имеют важное значение для продвижения к новым лекарствам лигандов Hurr1. Здесь мы охарактеризовали диссоциацию Hurr1 димера и

Late Breaking Orals.

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[Exploring the mechanism of action of Synotis solidaginea in treating acute eczema based on ultra performance liquid chromatography-linear trap quadrupole-Orbitrap mass spectrometry， network pharmacology and animal experiments].

This study employed an integrated strategy combining ultra performance liquid chromatography-linear trap quadrupole-Orbitrap mass spectrometry （UPLC-LTQ-Orbitrap-MS）， network pharmacology， molecular docking simulations， and in vivo animal experimentation to systematically analyze the active components of Synotissolidaginea （S. solidaginea） and to elucidate its underlying therapeutic mechanism in the treatment of acute eczema. Initially， the UPLC-LTQ-Orbitrap-MS method was utilized to perform a comprehensive chemical profiling of S. solidaginea extract. Based on accurate mass， multistage fragme

Erchen Decoction ameliorates the rat model of polycystic ovary syndrome by regulating the steroid biosynthesis pathway.

BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder associated with chronic inflammation and metabolic issues, including insulin resistance, weight gain, and lipid imbalance. It may cause infertility, menstrual irregularities, and increase the likelihood of developing type 2 diabetes, immune system disturbances, and cardiovascular conditions. OBJECTIVE: To identify the key components, underlying mechanisms, and therapeutic targets of Erchen decoction (ECD) for treating PCOS. METHODS: Abbreviations: Abi group, abiraterone group; AKR, aldo-keto reductase;

Перевозка и сдерживание движения sphingosine-1-phosphate Экспортеры SPNS2.

Sphingosine-1-phosphate (S1P) — сигнал лизолипида, имеющий решающее значение для развития сердца, иммунитета и слуха. Соответственно, мутации в переносчике S1P SPNS2 связаны с уменьшением числа белых клеток и нарушениями слуха. СПНС2 также экспортирует S1P-mimicking FTY720-P (Финголимод) и, таким образом, является центральным элементом фармакокинетики этого препарата при лечении множественного склероза. Здесь мы используем комбинацию крио-электронной микроскопии, иммунофлюоресценции, связывания in vitro и в vivo S1P-оценки экспорта, а также молекулярное моделирование динамики для исследования

Mass Spectrometry Approaches for Identification and Quantitation of Therapeutic Monoclonal Antibodies in the Clinical Laboratory.

Therapeutic monoclonal antibodies (MAbs) are an important class of drugs used to treat diseases ranging from autoimmune disorders to B cell lymphomas to other rare conditions thought to be untreatable in the past. Many advances have been made in the characterization of immunoglobulins as a result of pharmaceutical companies investing in technologies that allow them to better understand MAbs during the development phase. Mass spectrometry is one of the new advancements utilized extensively by pharma to analyze MAbs and is now beginning to be applied in the clinical laboratory setting. The rise

Минимальная информация для исследований внеклеточной везиклетки (MISEV2023): от базовых до передовых подходов.

Внеклеточные везиклолы (ЭМ) с помощью своего сложного груза могут отражать состояние клетки их происхождения и изменять функции и фенотипы других ячеек. Эти особенности свидетельствуют о значительном биомаркировании и терапевтическом потенциале и вызывают широкий интерес, о чем свидетельствует постоянное увеличение числа научных публикаций об ЭМ за год. Значительные успехи были достигнуты в области ЭВМ, а также в понимании и применении биологии ЭМ. Вместе с тем сохраняются препятствия на пути реализации потенциала ЭМ в различных областях - от базовой биологии до клинического применения - в свя

Pharmacological Treatments and Therapeutic Drug Monitoring in Patients with Chronic Pain.

Pain is an unpleasant sensory and emotional experience that affects every aspect of a patient's life and which may be treated through different pharmacological and non-pharmacological approaches. Analgesics are the drugs most commonly used to treat pain, and in specific situations, the use of opioids may be considered with caution. These drugs, in fact, do not always induce optimal analgesia in patients, and several problems are associated with their use. The purpose of this narrative review is to describe the pharmacological approaches currently used for the management of chronic pain. We rev