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Brigatinib и Alectinib for ALK Restruction-Positive Under-Spective Meta-Analysis с центральной нервной системой или без нее.

На сегодняшний день ни одно из испытаний не сравнивало эффективность бригатиниба и алектиниба с анапластической лимфатической киназой (АЛК) реструктуризацией положительной (ALK-p), АЛК-инбитор-наив, передовым раком легких немалых клеток (NSCLC) с метастазом центральной нервной системы (CNS). Мы провели непрямое сопоставление между бригатинибом и алектинибом с использованием кризотиниба в качестве общего компаратора, используя байезскую модель с неинформационным предварительным распределением, и провели оценку неоднородности исследований между исследованиями. Основным конечным показателем эффек

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… Among the other structural features that make brigatinib more specific for ALK is the methoxy group that interacts with the hinge residue, L1198, and the C5 chlorine atom that interacts with the gatekeeper residue, L1196 [ 52 ]. …

Treatment with anti-IL-6 receptor antibody prevented increase in serum hepcidin levels and improved anemia in mice inoculated with IL-6-producing lung carcinoma cells.

BackgroundHepcidin, a key regulator of iron metabolism, is produced mainly by interleukin-6 (IL-6) during inflammation. A mechanism linking cancer-related anemia and IL-6 through hepcidin production is suggested. To clarify the hypothesis that overproduction of IL-6 elevates hepcidin levels and contributes to the development of cancer-related anemia, we evaluated anti-IL-6 receptor antibody treatment of cancer-related anemia in an IL-6-producing human lung cancer xenograft model.MethodsNude mice were subcutaneously inoculated with cells of the IL-6-producing human lung cancer cell line LC-06-J

Antioxidants selenomethionine and D-pantethine decrease the negative side effects of doxorubicin in NL/Ly lymphoma-bearing mice.

AimTo investigate the potential tissue-protective effects of antioxidants selenomethionine and D-pantethine applied together with doxorubicin (Dx) on NK/Ly lymphoma-bearing mice. The impact of this chemotherapy scheme on animal survival, blood cell profile, hepatotoxicity, glutathione level, and activity of glutathione-converting enzymes in the liver was compared with the action of Dx applied alone..MethodsThe hematological profile of animals was studied by the analysis of blood smears under light microscopy. Hepatotoxicity of studied drugs was evaluated measuring the activity of alanine amino

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… The homogenates were centrifuged at 16 000 g for 15 min at 4°C and the obtained chlorine supernatants were adjusted to pH 5 with 20% NaOH. Prior to introduction into the chromatograph, the supernatant was filtered through a RC filter (0.45 µm, 13 mm) (Agilent Technologies). …

Advances of DNA Damage Repair-Related Drugs and Combination With Immunotherapy in Tumor Treatment.

Cancer therapy has been an important and popular area in cancer research. With medical technology developing, the appearance of various targeted drugs and immunotherapy offer more choices to cancer treatment. With the increase in drug use, people have found more and more cases in which tumors are resistant to DNA damage repair (DDR)-based drugs. Recently, the concept of combination therapy has been brought up in cancer research. It takes advantages of combining two or more therapies with different mechanisms, aiming to benefit from the synergistic effects and finally rescue patients irresponsi

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… In cytoplasm, the atomic chlorine of cisplatin is replaced by water ( 23 ). The aquo complex is a potent electrophile that can react with any nucleophile, including the sulfhydryl of proteins and nitrogen donor atoms of nucleic acid. …

Биология и болезни крыс

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

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… Bacteria in a biofilm are extraordinarily resistant to chlorine (150- to 3000-times more resistant than free-floating bacteria) and monochloramine (2- to 100-fold; LeChevallier et al ., 1988 ) and may be inaccessible to antibiotics. … Nonetheless, chlorination (10–13 ppm) or acidification (pH 2.5–3.0) can significantly reduce the colonization of mice with P. aeruginosa but will not eliminate infection. Rederivation by cesarian section or embryo transfer is required to eliminate P. aeruginosa from an infected colony. …

Biology and Diseases of Dogs

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Effect of N-Acetylcysteine on Cisplatin Toxicity: A Review of the Literature.

N-acetylcysteine (NAC) is a membrane-permeable cysteine precursor capable of enhancing the intracellular cysteine pool, enhancing cellular glutathione (GSH) synthesis, and thus potentiating the endogenous antioxidant mechanism. Late administration of NAC after cisplatin has been shown in different in vivo studies to reduce the side effects caused by various toxicities at different levels without affecting the antitumor efficacy of platinum, improving total and enzymatic antioxidant capacity and decreasing oxidative stress markers. These characteristics provide NAC with a rationale as a potenti

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… N-acetylcysteine inhibits the activation of redox-sensitive nuclear factor kappa B, which stimulates the expression of proinflammatory genes at times of oxidative stress, releasing many inflammatory cytokines. 60 In the case of cisplatin, as mentioned earlier, a lower chlorine concentration is found …

Theranostic Potentials of Gold Nanomaterials in Hematological Malignancies.

Hematological malignancies (HMs) are a heterogeneous group of blood neoplasia generally characterized by abnormal blood-cell production. Detection of HMs-specific molecular biomarkers (e.g., surface antigens, nucleic acid, and proteomic biomarkers) is crucial in determining clinical states and monitoring disease progression. Early diagnosis of HMs, followed by an effective treatment, can remarkably extend overall survival of patients. However, traditional and advanced HMs' diagnostic strategies still lack selectivity and sensitivity. More importantly, commercially available chemotherapeutic dr

Transcription and Translation Inhibitors in Cancer Treatment.

Transcription and translation are fundamental cellular processes that govern the protein production of cells. These processes are generally up regulated in cancer cells, to maintain the enhanced metabolism and proliferative state of these cells. As such cancerous cells can be susceptible to transcription and translation inhibitors. There are numerous druggable proteins involved in transcription and translation which make lucrative targets for cancer drug development. In addition to proteins, recent years have shown that the "undruggable" transcription factors and RNA molecules can also be targ

The Anti-Cancer Effect of Cinnamon Aqueous Extract: A Focus on Hematological Malignancies.

Cinnamon is an evergreen and tropical plant of the family Lauraceae, growing particularly in Sri Lanka, whose aqueous extract has been tested in different studies to evaluate its possible use as an anti-cancer compound. Both in vitro and in vivo experiments seem to confirm that it acts on various cellular pathways, contributing to down-regulating the activity of molecules that stimulate the proliferation and survival of cells such as the transcription factors NF-KB and AP-1, COX-2, dihydrofolate reductase and pro-angiogenic substances such as VEGF, while up-regulating the function of immune ce

Recent advances in the bench-to-bedside translation of cancer nanomedicines.

Cancer remains a complex and challenging medical problem, driving extensive research efforts. Despite significant progress in understanding its genetic and molecular aspects, the quest for effective treatments continues. Nanomedicines have shown great potential for revolutionizing cancer treatment by offering targeted and controlled drug delivery, reducing side effects, and improving patient outcomes. Accordingly, nanomedicines have been the focus of extensive research and development for clinical translation. As of September 2024, a search on the ClinicalTrials.gov website using the term "nan

PBMC-Humanized Mouse Model for Multical Sclerosis: Изучение неуменные изменения и участие CNS.

Гуманизированная иммунная система (HIS) мыши являются мощными инструментами для изучения функций и дисфункций иммунной системы человека и разработки иммунотерапевтической системы человека. Наличие изощренных штаммов супериммунодефицитной мыши позволило гуманизировать иммунную систему, используя трансплантацию человеческих периферийных моноядерных клеток крови (PBMC) или гематополиетических стволовых клеток. Его мыши широко используются в иммунной онкологии, в то время как проводится меньше исследований в области автономного иммунитета, особенно в области множественного склероза (MS). Используя

Mechanisms and Applications of Manganese-Based Nanomaterials in Tumor Diagnosis and Therapy.

Tumors are the second most common cause of mortality globally, ranking just below heart disease. With continuous advances in diagnostic technology and treatment approaches, the survival rates of some cancers have increased. Nevertheless, due to the complexity of the mechanisms underlying tumors, cancer remains a serious public health issue that threatens the health of the population globally. Manganese (Mn) is an essential trace element for the human body. Its regulatory role in tumor biology has received much attention in recent years. Developments in nanotechnology have led to the emergence

NTP Toxicology and Carcinogenesis Studies of Bromodichloromethane (CAS No. 75-27-4) in F344/N Rats and B6C3F1 Mice (Gavage Studies).

Bromodichloromethane (99% pure), one of several trihalomethanes commonly formed after chlorination of water, was selected for study because no carcinogenicity data were available for this compound and because chloroform, a related trihalomethane, had been found to cause tumors in rodents. The general population might be exposed to bromodichloromethane in drinking water supplies, in swimming pools, and in a variety of food substances. Single-administration, 14-day, 13-week, and 2-year studies were conducted in F344/N rats and B6C3F1 mice. The chemical was administered by gavage in corn oil beca

Brazilian Nutritional Consensus in Hematopoietic Stem Cell Transplantation: Adults.

The nutritional status of patients submitted to hematopoietic stem cell transplant is considered an independent risk factor, which may influence on quality of life and tolerance to the proposed treatment. The impairment of nutritional status during hematopoietic stem cell transplant occurs mainly due to the adverse effects resulting from conditioning to which the patient is subjected. Therefore, adequate nutritional evaluation and follow-up during hematopoietic stem cell transplant are essential. To emphasize the importance of nutritional status and body composition during treatment, as well a

Global, regional and national epidemiological trends of multiple myeloma from 1990 to 2021: a systematic analysis of the Global Burden of Disease study 2021.

BackgroundMultiple myeloma (MM) is a growing global public health challenge. Known epidemiological data suggest that MM accounts for approximately 10% of all hematologic malignancies and remains the second most common hematologic cancer worldwide. This study utilized data from the 2021 Global Burden of Diseases (GBD) study to evaluate the prevalence, incidence, mortality, disability-adjusted life years (DALYs), and attributable risk factors of MM from 1990 to 2021, and to project future trends for the next 15 years.MethodsGBD 2021 data were analyzed to assess MM's global burden using four key

From Early Diagnoses to New Treatments for Liver, Pancreatic, Gastric, and Colorectal Cancers Using Carbon Nanotubes: New Chances Still Underexplored.

Pancreatic, liver, gastric, colorectal, and rectal cancers (PC, LC, GC, CRC, and RC) are highly lethal tumours, with a 5-year survival rate of 10.5% (PC) and <20% (LC), and of 5%, 12%, and 13% for IV-stage GC, CRC, and RC, respectively. Currently, PC and LC represent the third leading cause of cancer-related death, while GCs and CRCs account for 4.8 million cancer cases and 4.4 million cancer deaths worldwide. Poor prognoses are mainly due to late diagnosis, limited efficacy of available treatments, tumour recurrence, as well as therapy-induced secondary tumorigenesis and drug resistance. In r

FDA-Approved Small Molecule Compounds as Drugs for Solid Cancers from Early 2011 to the End of 2021.

Solid cancers are the most common types of cancers diagnosed globally and comprise a large number of deaths each year. The main challenge currently in drug development for tumors raised from solid organs is to find more selective compounds, which exploit specific molecular targets. In this work, the small molecule drugs registered by the Food and Drug Administration (FDA) for solid cancers treatment between 2011 and 2022 were identified and analyzed by investigating a type of therapy they are used for, as well as their structures and mechanisms of action. On average, 4 new small molecule agent

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… The analysis of heteroatoms of active ingredients of the considered drugs points out that nitrogen atoms are dominant ones (61 compounds), then oxygen—58, halogens (including fluorine, chlorine, bromine and iodine)—43 and sulfur—14 and phosphorus—1. … In the case of halogens, there are one or more atoms in an aliphatic or aromatic system, mainly fluorine and chlorine, less often bromine, and iodine in only two agents, i.e., trametinib and iobenguane I 131 . …

Marine-Derived Bisindoles for Potent Selective Cancer Drug Discovery and Development.

Marine-derived bisindoles exhibit structural diversity and exert anti-cancer influence through multiple mechanisms. Comprehensive research has shown that the development success rate of drugs derived from marine natural products is four times higher than that of other natural derivatives. Currently, there are 20 marine-derived drugs used in clinical practice, with 11 of them demonstrating anti-tumor effects. This article provides a thorough review of recent advancements in anti-tumor exploration involving 167 natural marine bisindole products and their derivatives. Not only has enzastaurin ent

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… Bisindole pyrazole 21 ( Figure 2 ) exhibited antitumor activity on most human cell lines, while compound 22 ( Figure 2 ), containing more chlorine groups than compound 21 , was effective on all tested cells [ 30 ]. …

Novel Short PEG Chain-Substituted Porphyrins: Synthesis, Photochemistry, and In Vitro Photodynamic Activity against Cancer Cells.

This work presents the synthesis and characterization of metal-free, zinc (II), and cobalt (II) porphyrins substituted with short PEG chains. The synthesized compounds were characterized by UV-Vis, 1H and 13C NMR spectroscopy, and MALDI-TOF mass spectrometry. The origin of the absorption bands for tested compounds in the UV-Vis range was determined using a computational model based on the electron density functional theory (DFT) and its time-dependent variant (TD-DFT). The photosensitizing activity was evaluated by measuring the ability to generate singlet oxygen (ΦΔ), which reached values up