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Archivum Immunologiae et Therapiae Experimentalis

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https://www.readbyqxmd.com/read/28638937/anti-gitr-antibody-treatment-increases-tcr-repertoire-diversity-of-regulatory-but-not-effector-t-cells-engaged-in-the-immune-response-against-b16-melanoma
#1
Bozena Scirka, Edyta Szurek, Maciej Pietrzak, Grzegorz Rempala, Pawel Kisielow, Leszek Ignatowicz, Arkadiusz Miazek
Crosslinking of glucocorticoid-induced TNF family-related receptor (GITR) with agonist antibodies restores cancer immunity by enhancing effector T cell (Teff) responses while interfering with intra-tumor regulatory T cell (Treg) stability and/or accumulation. However, how anti-GITR antibody infusion changes T cell receptor (TCR) repertoire of Teffs and Tregs engaged in anti-tumor immune response is unclear. Here, we used a transgenic mouse model (TCRmini) where T cells express naturally generated but limited TCR repertoire to trace the fate of individual T cells recognizing B16 melanoma in tumor-bearing mice, treated or non-treated with an anti-GITR monoclonal antibody DTA-1...
June 21, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28623375/skin-immunity
#2
REVIEW
Agata Matejuk
Skin is the largest organ of the body with a complex network of multitude of cell types that perform plastic and dynamic cellular communication to maintain several vital processes such as inflammation, immune response including induction of tolerance and disease prevention, wound healing, and angiogenesis. Of paramount importance are immunological functions of the skin that protect from harmful exposure coming from external and internal environments. Awareness of skin immunity can provide a better comprehension of inflammation, autoimmunity, cancer, graft-versus-host disease, vaccination, and immunotherapy approaches...
June 16, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28593345/exocrine-gland-morphogenesis-insights-into-the-role-of-amphiregulin-from-development-to-disease
#3
REVIEW
Margherita Sisto, Loredana Lorusso, Giuseppe Ingravallo, Sabrina Lisi
Amphiregulin (AREG) is a well-characterized member of the epidermal growth factor (EGF) family and is one of the ligands of the EGF receptor (EGFR). AREG plays a key role in mammalian development and in the control of branching morphogenesis in various organs. Furthermore, AREG participates in a wide range of physiological and pathological processes activating the major intracellular signalling cascades governing cell survival, proliferation and motility. In this article, we review current advances in exocrine glands morphogenesis, focusing on the salivary gland, and discuss the essential aspects of AREG structure, function and regulation, and its differential role within the EGFR family of ligands...
June 7, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28589230/the-immune-response-in-periodontal-tissues
#4
REVIEW
Małgorzata Nędzi-Góra, Jan Kowalski, Renata Górska
The uniqueness of periodontal diseases is caused by several factors. This group of diseases is caused by numerous bacterial species formed in the dental biofilm, and one cannot distinguish the specific pathogen that is responsible for the disease initiation or progress (though Gram-negative anaerobic rods are associated with the advanced form of the disease). The disease is both infectious and inflammatory in its nature, and in the state of health there is always a subclinical level of inflammatory response, caused by the so-called harmless bacteria...
June 6, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28560557/heterogeneity-among-neutrophils
#5
REVIEW
Marzena Garley, Ewa Jabłońska
Neutrophils (PMNs) play a key role in innate defence mechanisms. Generally, PMNs were considered to have a homogeneous population of mature and diversified cells. It seems, however, that their pleiotropic action results from the existence of different subpopulations in this group of cells. There are data that confirm the involvement of PMNs in the direct activation of other cells in non-specific response, as well as specialised cells in specific response. For example, there have been observations of PMNs with different levels of activity in relation to lymphocytes, and a population was identified which had characteristics similar to those of cells which are capable of presenting antigens...
May 30, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28547498/interleukin-il-23-receptor-il-17a-and-il-17f-gene-polymorphisms-in-brazilian-patients-with-rheumatoid-arthritis
#6
Isaura Isabelle Fonseca Gomes da Silva, Hildson Dornelas Angelo, Eliezer Rushansky, Maria Helena Mariano, Maria de Mascena Diniz Maia, Paulo Roberto Eleuterio de Souza
Rheumatoid arthritis (RA) is a progressive, autoimmune disease for which the previous studies have shown that some functional polymorphisms can influence its etiology. Knowing this, the aim of this study was to investigate the association of +2199 A/C IL-23R (rs10889677), -197 G/A IL-17A (rs2275913), and +7488 A/G IL-17F (rs763780) gene polymorphisms with RA susceptibility and clinical features in a Brazilian population. A total of 127 RA patients and 134 healthy controls were recruited for the analyses of polymorphic variants...
May 25, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28536887/ficolin-2-gene-rs7851696-polymorphism-is-associated-with-delayed-graft-function-and-acute-rejection-in-kidney-allograft-recipients
#7
Ewa Dabrowska-Zamojcin, Michal Czerewaty, Damian Malinowski, Maciej Tarnowski, Sylwia Słuczanowska-Głabowska, Leszek Domanski, Krzysztof Safranow, Andrzej Pawlik
Ficolin-2 is an activator of the complement system that acts via the lectin pathway. Complement activation plays a substantial role in the renal injury inherent to kidney transplantation. In this study, we examined the associations between ficolin-2 gene polymorphisms in exon 8 and kidney allograft function. This study comprised 270 Caucasian deceased-donor renal transplant recipients. The following parameters were recorded in each case: delayed graft function (DGF), acute rejection (AR), and chronic allograft dysfunction...
May 23, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28523429/kir-lilrb-and-their-ligands-genes-as-potential-biomarkers-in-recurrent-implantation-failure
#8
REVIEW
Izabela Nowak, Karolina Wilczyńska, Jacek R Wilczyński, Andrzej Malinowski, Paweł Radwan, Michał Radwan, Piotr Kuśnierczyk
Reproductive failure in humans is a very important social and economic problem, because nowadays women decide to conceive later in life and delay motherhood. Unfortunately, with increasing age they have less chance for natural fertilization and maintenance of pregnancy. Many of them need assisted reproductive technology. Approximately 10% of women after in vitro fertilization-embryo transfers experience recurrent implantation failure (RIF). Multiple factors may contribute to RIF, including oocyte and sperm quality, parental chromosomal anomalies, genetic or metabolic abnormalities of the embryo, poor uterine receptivity, immunological disturbances in the implantation site, and some gynecologic pathologies such as endometriosis, uterine fibroids, hydrosalpinx and endometrial polyps...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28523428/the-potential-role-of-kr%C3%A3-ppel-like-zinc-finger-protein-glis3-in-genetic-diseases-and-cancers
#9
REVIEW
Chon-Kit Chou, Chin-Ju Tang, Han-Lin Chou, Chun-Yen Liu, Ming-Chong Ng, Yu-Ting Chang, Shyng-Shiou F Yuan, Eing-Mei Tsai, Chien-Chih Chiu
Gli-similar 3 (Glis3) belongs to a Glis subfamily of Krüppel-like zinc-finger transcription factors characterized to regulate a set of downstream targets essential for cellular functions, including pancreatic development, β-cell maturation and maintenance, and insulin production. Examination of the DNA-binding domain of Glis3 reveals that this domain contains a repeated cysteine 2/histidine 2 (Cys2/His2) zinc-finger motif in the central region where the recognized DNA sequence binds. The loss of the production of pancreatic hormones, such as insulin 1 and 2, is linked to the down-regulation of β cells-related genes and promotes the apoptotic death of β cells found in mutant Glis3...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28477096/expanding-diversity-and-common-goal-of-regulatory-t-and-b-cells-i-origin-phenotype-mechanisms
#10
REVIEW
Katarzyna Bocian, Ewelina Kiernozek, Joanna Domagała-Kulawik, Grażyna Korczak-Kowalska, Anna Stelmaszczyk-Emmel, Nadzieja Drela
Immunosuppressive activity of regulatory T and B cells is critical to limit autoimmunity, excessive inflammation, and pathological immune response to conventional antigens or allergens. Both types of regulatory cells are intensively investigated, however, their development and mechanisms of action are still not completely understood. Both T and B regulatory cells represent highly differentiated populations in terms of phenotypes and origin, however, they use similar mechanisms of action. The most investigated CD4(+)CD25(+) regulatory T cells are characterized by the expression of Foxp3(+) transcription factor, which is not sufficient to maintain their lineage stability and suppressive function...
May 5, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28470464/expanding-diversity-and-common-goal-of-regulatory-t-and-b-cells-ii-in-allergy-malignancy-and-transplantation
#11
REVIEW
Grażyna Korczak-Kowalska, Anna Stelmaszczyk-Emmel, Katarzyna Bocian, Ewelina Kiernozek, Nadzieja Drela, Joanna Domagała-Kulawik
Regulation of immune response was found to play an important role in the course of many diseases such as autoimmune diseases, allergy, malignancy, organ transplantation. The studies on immune regulation focus on the role of regulatory cells (Tregs, Bregs, regulatory myeloid cells) in these disorders. The number and function of Tregs may serve as a marker of disease activity. As in allergy, the depletion of Tregs is observed and the results of allergen-specific immunotherapy could be measured by an increase in the population of IL-10(+) regulatory cells...
May 3, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28386695/human-gyrovirus-apoptin-interferes-with-the-cell-cycle-and-induces-g2-m-arrest-prior-to-apoptosis
#12
Wiem Chaabane, Saeid Ghavami, Andrzej Małecki, Marek J Łos
The human gyrovirus-Apoptin (HGyv-Apoptin) is a protein that gained attention because it is selectively cytotoxic toward cancer cells. In this study, we have investigated the effect of HGyv-Apoptin on cell cycle progression of cancer cells. We also compared HGyv-Apoptin's action to its homologue chicken anemia virus Apoptin (CAV-Apoptin). We show that HGyv-Apoptin induces G2/M arrest in cancer cells. This is at least in part due to the fact that HGyv-Apoptin induces an abnormal spindle formation in mitotic cells that do not progress properly throughout the cell cycle...
April 6, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28361180/evaluation-of-endothelial-function-by-flow-mediated-dilation-a-comprehensive-review-in-rheumatic-disease
#13
REVIEW
Luca Moroni, Carlo Selmi, Claudio Angelini, Pier Luigi Meroni
Flow-mediated dilation (FMD) represents a non-invasive marker of endothelial function to evaluate vascular homeostasis, which reflects the effects of several mechanisms, including vessel tone regulation, cell proliferation, and inflammatory responses. Beyond classical atherosclerotic risk factors such as arterial hypertension, diabetes mellitus, smoking, obesity, and dyslipidemia, chronic inflammation contributes to the endothelial dysfunction causing plaque formation and there is growing evidence of a significantly higher cardiovascular morbidity associated with autoimmune diseases...
March 30, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28386696/cd1-a-singed-cat-of-the-three-antigen-presentation-systems
#14
REVIEW
Radoslaw Kaczmarek, Mariola Pasciak, Katarzyna Szymczak-Kulus, Marcin Czerwinski
Contrary to general view that the MHC Class I and II are the kapellmeisters of recognition and response to antigens, there is another big player in that part of immunity, represented by CD1 glycoproteins. In contrast to MHC Class I or II, which present peptides, CD1 molecules present lipids. Humans express five CD1 proteins (CD1a-e), four of which (CD1a-d) are trafficked to the cell surface, where they may display lipid antigens to T-cell receptors. This interaction may lead to both non-cognate and cognate T cell help to B cells, the latter eliciting anti-lipid antibody response...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27699445/crispr-cas9-immune-system-as-a-tool-for-genome-engineering
#15
REVIEW
Magdalena Hryhorowicz, Daniel Lipiński, Joanna Zeyland, Ryszard Słomski
CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) adaptive immune systems constitute a bacterial defence against invading nucleic acids derived from bacteriophages or plasmids. This prokaryotic system was adapted in molecular biology and became one of the most powerful and versatile platforms for genome engineering. CRISPR/Cas9 is a simple and rapid tool which enables the efficient modification of endogenous genes in various species and cell types. Moreover, a modified version of the CRISPR/Cas9 system with transcriptional repressors or activators allows robust transcription repression or activation of target genes...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27677293/a-quinone-containing-compound-enhances-camptothecin-induced-apoptosis-of-lung-cancer-through-modulating-endogenous-ros-and-erk-signaling
#16
Han-Lin Chou, Yao Fong, Chi-Ku Wei, Eing-Mei Tsai, Jeff Yi-Fu Chen, Wen-Tsan Chang, Chang-Yi Wu, Hurng-Wern Huang, Chien-Chih Chiu
The natural compound camptothecin (CPT) derivatives have widely been used for anti-cancer treatments, including lung cancer. However, many chemoresistant cancer cells often develop a relatively higher threshold for inducing apoptosis, causing a limited efficacy of anti-cancer drugs. Likewise, lung cancer cells acquire chemoresistance against CPT analogs, such as irinotecan and topotecan, finally resulting in an unsatisfied outcome and poor prognosis of lung cancer patients. TFPP is a quinone-containing compound as a candidate for CPT-based combination chemotherapy...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27652380/the-impact-of-sex-and-age-on-the-prevalence-of-clinically-relevant-sensitization-and-asymptomatic-sensitization-in-the-general-population
#17
Anna Dor-Wojnarowska, Jerzy Liebhart, Jadwiga Miecielica, Marek Rabski, Andrzej Fal, Bolesław Samoliński, Marita Nittner-Marszalska
The objective of our study was to evaluate the impact of sex and age on the prevalence of sensitization to inhalant allergens. The study was performed as a part of Polish Epidemiology of Allergic Diseases study, and data concerning citizens of Wroclaw were analyzed. The participants were divided into three age groups (6-7, 13-14, and 20-44 years) with a subdivision according to sex. We randomly selected 1409 individuals, 439 people complied; the complete set of tests was performed on 421 of them. We found that 37...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27652379/mavs-is-not-a-likely-susceptibility-locus-for-addison-s-disease-and-type-1-diabetes
#18
Magdalena Zurawek, Marta Fichna, Marta Kazimierska, Piotr Fichna, Agnieszka Dzikiewicz-Krawczyk, Grzegorz Przybylski, Marek Ruchala, Jerzy Nowak
Mitochondrial antiviral signaling (MAVS) protein is an intracellular adaptor molecule, downstream of viral sensors, retinoid acid-inducible gene I (RIG-I)-like receptors (RLRs). Impaired antiviral cell signaling might contribute to autoimmunity. Studies have recently shown variations in genes encoding RLRs as risk factors for autoimmune diseases. We investigated whether MAVS coding polymorphisms are associated with Addison's disease (AD) and type 1 diabetes (T1D) in Polish population. We genotyped 140 AD, 532 T1D patients and 600 healthy controls for MAVS rs17857295, rs7262903, rs45437096 and rs7269320...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27638481/activated-and-memory-t-lymphocytes-in-children-with-gaucher-disease
#19
Asmaa M Zahran, Azza A Eltayeb, Khalid I Elsayh, Khaled Saad, Faisal-Alkhateeb Ahmad, Ahmad I M Ibrahim
Gaucher disease (GD) is the most prevalent lysosomal storage disorder. Gaucher disease is associated with remarkable alterations in the immune system, and GD patients are more susceptible to infections and are at a higher risk of developing autoimmune disorders and malignancies. In a case-control study, we used three-color flow cytometric immunophenotyping for determination of the frequency of lymphocyte subpopulations and activated T lymphocytes among 18 children with GD1 under enzyme replacement therapy managed in Assiut University Hospitals...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/27638480/clinical-use-and-therapeutic-potential-of-ivig-scig-plasma-derived-iga-or-igm-and-other-alternative-immunoglobulin-preparations
#20
REVIEW
Peter J Späth, Christoph Schneider, Stephan von Gunten
Intravenous and subcutaneous immunoglobulin preparations, consisting of IgG class antibodies, are increasingly used to treat a broad range of pathological conditions, including humoral immune deficiencies, as well as acute and chronic inflammatory or autoimmune disorders. A plethora of Fab- or Fc-mediated immune regulatory mechanisms has been described that might act separately or in concert, depending on pathogenesis or stage of clinical condition. Attempts have been undertaken to improve the efficacy of polyclonal IgG preparations, including the identification of relevant subfractions, mild chemical modification of molecules, or modification of carbohydrate side chains...
June 2017: Archivum Immunologiae et Therapiae Experimentalis
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