Результаты поиска

A WASp-VASP complex regulates actin polymerization at the plasma membrane.

Proteins of the Wiskott-Aldrich syndrome and Ena/VASP families both play essential functions in the regulation of actin dynamics at the cell leading edge. However, possibilities of functional interplay between members of these two families have not been addressed. Here we show that, in hemopoietic cells, recruitment of the C-terminal VCA (Verprolin homology, Cofilin homology, Acidic) domain of WASp at the plasma membrane by a ligand technique using rapamycin as an intermediate is not sufficient to elicit efficient Arp2/3 complex-mediated actin polymerization. Other domains of WASp, in particul

[Viral superantigens].

Superantigens (SAgs) are microbial proteins produced by various microorganisms that elicit excessive and strong stimulation of T cells via an unconventional mechanism. They cause polyclonal activation of T cells in a non-specific manner, by binding to a particular variable-beta (Vβ) chain of T-cell receptor (TCR) and MHC class II molecule, in unprocessed form and outside of peptide-binding cleft, forming a bridge between the antigen presenting cell and the T cell. SAgs are classified into three groups, namely 1) exogenous (soluble proteins and exotoxins secreted by microorganisms), 2) endogeno

Роль врожденных иммунных клеток в множественном склерозе.

Множественный склероз (MS) — хроническое аутоиммунное, воспалительное и нейродегенеративное заболевание, затрагивающее центральную нервную систему (КНС). MS ассоциируется со сложным взаимодействием между нейродегенеративными и воспалительными процессами, в основном связанными с патогенными Т и В клетками. Однако все большее количество доклинических и клинических данных свидетельствует о том, что врожденный иммунитет играет ключевую роль в поощрении и развитии НР. В этой связи в настоящее время изучаются доклинические и клинические исследования, ориентированные на различные врожденные иммунные

Совпадение в полном тексте источника
… Basophils Basophils are short-lived innate immune cells characterized by the presence of basophilic granules in the cytoplasm, representing less than 1% of all leukocytes in the peripheral blood. … Basophils Elevated number of blood basophils in pwMS compared to healthy controls, with unknown relevance for MS progression ( 210 ). Basophils contribute to the autoimmune damage by indirectly supporting Th17 cell polarization ( 209 ). …

Effusion cytology of EBV-associated lymphoma: a concise review.

Epstein-Barr virus (EBV)-associated lymphomas can, on rare occasions, involve body cavities, making effusion cytology an important diagnostic tool. This mini-review explores the spectrum of EBV-related lymphomas that may be detected in serous fluids, including EBV-positive nodal T/NK-cell lymphoma (EBV + nT/NKCL), extranodal NK/T-cell lymphoma, primary effusion lymphoma, EBV-positive diffuse large B-cell lymphoma, and classic Hodgkin lymphoma. We present an index case of EBV + nT/NKCL with lymphomatous pleural effusion and discuss the cytologic features, differential diagnoses, and role of anc

Exploring the association and causal effect between white blood cells and psoriasis using large-scale population data.

IntroductionPsoriasis is a chronic inflammatory disease of the skin. A few studies have shown that psoriasis is an immune-mediated disease in which multiple immune cells play crucial roles. However, the association between circulating immune cells and psoriasis remains elusive.MethodsTo explore the role of circulating immune cells in psoriasis, 361,322 individuals from the UK Biobank (UKB) and 3,971 patients with psoriasis from China were included to investigate the association between white blood cells and psoriasis via an observational study. Genome-wide association studies (GWAS) and Mendel

Совпадение в полном тексте источника
… The result of basophil count after deleting SNPs related BMI also show the causal relationship between basophil count and psoriasis. The OR and 95%CI for basophil count was 1.520 (1.266-1.826). … Due to the rarity of basophils in the blood and skin, their function in psoriasis was often ignored in previous studies and is still unclear. Our results showed that basophils may have a potential causal association with psoriasis. …

Chemical characterisation and toxicity assessment in vitro and in vivo of the hydroethanolic extract of Terminalia argentea Mart. leaves.

ETHNOPHARMACOLOGICAL RELEVANCE: Terminalia argentea Mart. (Combretaceae), known mainly as "capitão", is a native tree, not endemic, that occ … h in the rats after 30 days and the few changes were: absolute (103/mm3) and relative (%) values of basophils increased by 477.8% and 423% (p < 0.001), respectively, with 50 mg/kg; reduction in feed intake (23.6%, p < 0.01) only on day 18; total cholesterol concentration (13.1%, p < 0.05) and relative heart weight (13.2% %, p < 0.05) at a dose of 800 mg/kg. …

AllergoOncology - the impact of allergy in oncology: EAACI position paper.

Th2 immunity and allergic immune surveillance play critical roles in host responses to pathogens, parasites and allergens. Numerous studies have reported significant links between Th2 responses and cancer, including insights into the functions of IgE antibodies and associated effector cells in both antitumour immune surveillance and therapy. The interdisciplinary field of AllergoOncology was given Task Force status by the European Academy of Allergy and Clinical Immunology in 2014. Affiliated expert groups focus on the interface between allergic responses and cancer, applied to immune surveill

Совпадение в полном тексте источника
… Next, humans express FcεRI on a broad range of cells including monocytes, mast cells, basophils, eosinophils, platelets, Langerhans cells and DCs (Table 1 ), whereas murine FcεRI expression has only been confirmed on mast cells and basophils (Table 4 ). … BAT, basophil activation test; HSR, immediate hypersensitivity reaction. (B) Proposed mechanism for chemotherapy RDD (adapted from Ref. 164). …

Sensitive detection of the endocrine effects of the estrogen analogue ethinylestradiol using a modified enhanced subacute rat study protocol (OECD Test Guideline no. 407).

Groups of five male and female Wistar rats were treated by gavage with 0, 0.01, 0.05 or 0.2 mg/kg body weight of the known synthetic estrogen ethinylestradiol for 28-32 days according to a modified enhanced OECD Test Guideline no. 407 in order to investigate which of the current and/or additional parameters would detect effects on the endocrine system reliably and sensitively and to provide data on intra-laboratory variability. Two identical studies (A and B) were run concurrently. The modified enhanced protocol requests the additional determination of triiodothyronine, thyroxine and thyroid-s

Multiple Myeloma Presenting as Lower Gastrointestinal Bleeding: A Case Report.

Multiple myeloma (MM) is a malignant hematologic neoplasm that primarily affects the bone marrow and can invade other organs, leading to diverse clinical manifestations. Presentation with gastrointestinal bleeding as the initial symptom is exceptionally rare. We report a case of MM in a 46-year-old man who presented with gastrointestinal bleeding and severe anemia. Routine endoscopic evaluation was inconclusive, but further hematologic and imaging investigations confirmed multiple myeloma. The patient was successfully treated with bortezomib-based chemotherapy and supportive care. This case em

New IL-17 family members promote Th1 or Th2 responses in the lung: in vivo function of the novel cytokine IL-25.

We have biologically characterized two new members of the IL-17 cytokine family: IL-17F and IL-25. In contrast to conventional in vitro screening approaches, we have characterized the activity of these new molecules by direct in vivo analysis and have compared their function to that of other IL-17 family members. Intranasal administration of adenovirus expressing IL-17, IL-17C, or IL-17F resulted in bronchoalveolar lavage neutrophilia and inflammatory gene expression in the lung. In contrast, intranasal administration of IL-25-expressing adenovirus or IL-25 protein resulted in the production o

Targeting myeloid villains in the treatment with immune checkpoint inhibitors in gastrointestinal cancer.

Despite the clinical outcomes being extremely limited, blocking immune inhibitory checkpoint pathways has been in the spotlight as a promising strategy for treating gastrointestinal cancer. However, a distinct strategy for the successful treatment is obviously needed in the clinical settings. Myeloid cells, such as neutrophils, macrophages, dendritic cells, and mast cells, are the majority of cellular components in the human immune system, but have received relatively less attention for the practical implementation than T cells and NK cells in cancer therapy because of concentration of the int

Совпадение в полном тексте источника
… IL3 and IL33 are potent activators of basophils, and stimulate to produce these molecules. … Despite the small number (< 1%) in peripheral blood leukocytes, accumulating evidence suggests that basophils participate in cancer pathogenesis, since basophils are a major source of IL4 that induce Th2 and M2-TAM polarization, and also produce CCL5 to recruit TAMs and Treg cells ( 168 ). …

Combination of 30% Salicylic Acid Peels and Mechanical Comedo Extraction for the Treatment of Favre-Racouchot Syndrome.

Dear Editor, Favre-Racouchot syndrome is a cutaneous disease characterized by cysts, comedones, and elastotic nodules in actinically damaged skin, typically on the face (1). It has been specifically connected to sun exposure and heavy smoking, which may act synergistically (2). Available medical and surgical therapies are of variable efficacy. We present a combined therapeutic approach: 30% salicylic acid peels followed by manual extraction of cystic and comedonal material in the same visit. Five male patients, aged between 60-75 years with the clinical diagnosis of Favre-Racouchot syndrome, w

Роль растворимого CD40L в аутоиммунных заболеваниях.

CD40-CD40L имеет важное значение для модуляции иммунной системы, поскольку она координирует как адаптивные, так и подстрекательские реакции. К числу аутоиммунных заболеваний относятся системная волчанка, множественный склероз, воспалительный кишечник, тромбоцитопентическая пурпура и ревматоидный артрит. Таким образом, ось CD40-CD40L является значительной терапевтической целью, несмотря на тот факт, что ее ингибирование было сначала ограничено тромбоэмболическими негативными последствиями. В результате проведенных в последнее время исследований были разработаны новые терапевтические подходы, та

Abstracts from the 8th Drug Hypersensitivity Meeting (DHM)

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

Совпадение в полном тексте источника
… France Correspondence: Luc De Chaisemartin - luc.de-chaisemartin@u-psud.fr Clinical and Translational Allergy 2018, 8(Suppl 3) :O01 Background Anaphylaxis is an acute systemic hypersensitivity reaction considered to rely on IgE antibodies against an allergen and histamine release by mast cells and basophils …

Радиологическое и патологическое восприятие остеонекроза, связанного с лекарственными препаратами, у &lt; &lt; Жо &gt; &gt; , больного миеломой: доклад 3 Дела.

Связанный с лекарственными препаратами остеонекроз челюсти (MRONJ) является редким побочным эффектом некоторых лекарственных средств, главным образом тех, которые используются при лечении конкретных раковых заболеваний и при первоначальном лечении ненеопластических заболеваний. Первые случаи остеонекроза челюсти были зарегистрированы в ходе 2 десятилетия назад у пациентов, употребляющих бисфофонаты (БП). После идентификации номенклатура перешла от остеонекроза челюсти (BRONJ) к MRONJ, поскольку другие лекарства могут вызвать такую же реакцию. Инвазивные стоматологические услуги, такие, как экс

Association of p-phenylenediamine exposure with alterations of pulmonary function, pruritus and health-related quality of life in hair dye factory workers: a cross-sectional study.

P-Phenylenediamine (PPD) is a common component of hair dye, which can cause skin contact allergy and asthma with impaired pulmonary function. However, the adverse effects of occupational exposure to different dose PPD was rarely mentioned. We recruited 124 workers from a hair dye factory to explore the association of occupational PPD exposure on pulmonary function, pruritus and health related quality of life (HRQL). We categorized exposure to PPD into 3 levels: lower exposure group (< 0.00001 mg/m3); middle exposure group (0.00001-0.00033 mg/m3); higher exposure group (0.00033-0.047 mg/m3). Th

Совпадение в полном тексте источника
… The workers exposed in higher PPD concentration showed a lower white blood cell count and higher basophils, hemoglobin and eosinophils counts. An elevation of basophils, hemoglobin and eosinophils counts was similar to those found in neutrophilic dermatitis, apart from the pronounced eosinophilia. … PPD exposed may cause FEV1% and FEV1/FVC% decreased, and some influence to blood biochemical index such as white blood cell count, eosinophils, basophils and hemoglobin according to the results of structural equation model. …

NTP Toxicology and Carcinogenesis Studies of Hydroquinone (CAS No. 123-31-9) in F344/N Rats and B6C3F1 Mice (Gavage Studies).

Hydroquinone is used an antioxidant in the rubber industry and as a developing agent in photography. It is also an intermediate in the manufacture of rubber and food antioxidants and monomer inhibitors. Hydroquinone and products containing hydroquinone are used as depigmenting agents to lighten skin. NTP Toxicology and Carcinogenesis studies were conducted by administering hydroquinone (greater than 99% pure) in corn oil or water by gavage to groups of F344/N rats and B6C3F1 mice of each sex for 14 days, 13 weeks, or 2 years. Additionally, genetic toxicology studies were conducted in Salmonell

Успешное лечение трифаротена типичной болезни Кирла с обзором тематической терапии.

Болезнь Кирла - это редкое кожное расстройство, связанное с диагностикой трансэпидермального кератина, обычно связанного с системными заболеваниями. Мы сообщаем об уникальном случае, когда здоровый 26-летний человек сопротивляется стандартной терапии. В течение восьми недель была достигнута ремиссия с ежедневным тематическим трифаротеном 0,005%. Это первый, о котором сообщалось, случай КД, успешно обработанный трифаротином, избирательным RAR-__ retinoid, ориентированным на дифференциацию кератиноцитов и воспаление. Его эффективность и безопасность дают возможность пациентам, не пригодным для с

Trifuhalol A Suppresses Allergic Inflammation through Dual Inhibition of TAK1 and MK2 Mediated by IgE and IL-33.

The activation and degranulation of immune cells play a pivotal role in allergic inflammation, a pathological condition that includes anaphylaxis, pruritus, and allergic march-related diseases. In this study, trifuhalol A, a phlorotannin isolated from Agarum cribrosum, inhibited the degranulation of immune cells and the biosynthesis of IL-33 and IgE in differentiated B cells and keratinocytes, respectively. Additionally, trifuhalol A suppressed the IL-33 and IgE-mediated activation of RBL-2H3 cells through the regulation of the TAK1 and MK2 pathways. Hence, the effect of trifuhalol A on allerg

Совпадение в полном тексте источника
… Discussion Granulocytes such as mast cells and basophils play a critical role in IgE and IgE/antigen (Ag)-related allergic reactions [ 17 ]. RBL-2H3 cells are rat basophilic leukemia cells derived from mucosal mast cells and are commonly used for IgE-mediated degranulation studies [ 18 ]. … This response is triggered by the activation of basophils and mast cells, which provokes the release of mediators from secretory granules, such as histamine, carboxypeptidase A, tryptase, and proteoglycans [ 24 ]. …

NTP Toxicology and Carcinogenesis Studies of 1-Amino-2,4-Dibromoanthraquinone (CAS No. 81-49-2) in F344/N Rats and B6C3F1 Mice (Feed Studies).

1-Amino-2,4-dibromoanthraquinone is an anthraquinone-derived vat dye, a member of a class of insoluble dyes that are impregnated into textile fibers. Five anthraquinone-derived dyes with representative and diverse structures, as well as the parent chemical, anthraquinone, were selected for NTP Toxicology and Carcinogenesis evaluation. Similar to the benzidine dye initiative, the rationale for selecting these vat dyes was to generate sufficient toxicologic data to permit more reliable predictions of carcinogenicity to be made on other chemicals in this class, thereby eliminating or reducing the