Results 31 to 40 of about 68,749 (310)

EVALUATION OF HUMAN LEUKOCYTE ANTIGEN CLASS I AND II ANTIGENS IN HELICOBACTER PYLORI-POSITIVE PEDIATRIC PATIENTS WITH ACTIVE GASTRITIS AND DUODENAL ULCER

Arquivos de Gastroenterologia, 2017
BACKGROUND: As being the first bacteria determined to be carcinogenic, Helicobacter pylori (H. pylori) is a pathogen localized in the stomach in more than half of the world population.
Sevim GÖNEN, Sinan SARI, Yaşar KANDUR, Buket DALGIÇ, Oğuz SÖYLEMEZOĞLU   +4 more
doaj   +1 more source

Enhanced Expression of Interferon-γ-Induced Antigen-Processing Machinery Components in a Spontaneously Occurring Cancer

Neoplasia: An International Journal for Oncology Research, 2007
In human tumors, changes in the surface expression and/or function of major histocompatibility complex (MHC) class I antigens are frequently found and may provide malignant cells with a mechanism to escape control of the immune system. This altered human
Fulvia Cerruti, Marina Martano, Claudio Petterino, Enrico Bollo, Emanuela Morello, Renato Bruno, Paolo Buracco, Paolo Cascio   +7 more
doaj   +1 more source

Impaired Intracellular Transport and Cell Surface Expression of Nonpolymorphic HLA-E [PDF]

, 1992
The assembly of the classical, polymorphic major histocompatibility complex class I molecules in the endoplasmic reticulum requires the presence of peptide ligands and ~2-microglobulin (~2m). Formation of this trimolecular complex is a prerequisite for e~
Kellermann, Josef, Johnson, Judith P., Matthias Ulbrecht, Ulbrecht, Matthias, Josef Kellermann, Judith P. Johnson, Weiss, Elisabeth H., Elisabeth H. Weiss   +7 more
core   +1 more source

E5 protein of human papillomavirus type 16 selectively downregulates surface HLA class I [PDF]

, 2005
Papillomaviruses have evolved mechanisms that result in escape from host immune surveillance. The E5 protein is expressed early in papillomavirus infection in the deep layers of the infected epithelium.
Marchetti, Barbara, O'Brien, P.M., Ashrafi, G. Hossein, Haghshenas, Mohammad R., O'Brien, Philippa M., Ashrafi, G.H., Haghshenas, M.R., Campo, M.S., Marchetti, B., Campo, M. Saveria   +9 more
core   +1 more source

Interferon-gamma-activated macrophages infected with Burkholderia cenocepacia process and present bacterial antigens to T-cells by class I and II major histocompatibility complex molecules

Emerging Microbes and Infections, 2020
Burkholderia cenocepacia is an emerging opportunistic pathogen for people with cystic fibrosis and chronic granulomatous disease. Intracellular survival in macrophages within a membrane-bound vacuole (BcCV) that delays acidification and maturation into ...
Roberto Rosales-Reyes, Paola Garza-Villafuerte, Daniela Vences-Vences, Daniel F. Aubert, Rubi Aca-Teutle, Vianney F. Ortiz-Navarrete, Laura C. Bonifaz, Julio Cesar Carrero-Sánchez, Alfonso Olivos-García, Miguel A. Valvano, José Ignacio Santos-Preciado   +10 more
doaj   +1 more source

Structural analysis of the adenovirus type 2 E3/19K protein using mutagenesis and a panel of conformation-sensitive monoclonal antibodies [PDF]

, 2008
The E3/19K protein of human adenovirus type 2 (Ad2) was the first viral protein shown to interfere with antigen presentation. This 25 kDa transmembrane glycoprotein binds to major histocompatibility complex (MHC) class I molecules in the endoplasmic ...
Menz, Beatrice, Schmid, Ralf, Burgert, Hans-Gerhard, Martina Sester, Hans-Gerhard Burgert, Sester, Martina, Koebernick, Katja, Beatrice Menz, Katja Koebernick, Ralf Schmid   +9 more
core   +1 more source

Is There any Greater Possibility in Finding HLA-identical Unrelated Hematopoietic Stem Cell Donors among Thalassemia Families for Transplantation of Thalassemia Patients? [PDF]

International Journal of Hematology-Oncology and Stem Cell Research, 2004
Background: Thalassemia is probably the most common single gene disorder causing a major public health problem in the world. Currently, allogenic hematopoietic stem cell transplantation (HSCT) is the only curative therapy for thalassemia.
M Mohyeddin, P Alijanipour, K Alimoghaddam, A Ghavamzadeh, F Khosravi, B Nikbin   +5 more
doaj   +1 more source

Endogenous antigen presentation of MHC class II epitopes through non-autophagic pathways

Frontiers in Immunology, 2015
Antigenic peptides presented by major histocompatibility complex (MHC) class II molecules are generally derived from exogenous proteins acquired by antigen presenting cells. However, in some circumstances, MHC class II molecules can present intracellular
Carol Sze Ki eLeung
doaj   +1 more source

Evidence for directional selection at a novel major histocompatibility class I marker in wild common frogs (Rana temporaria) exposed to a viral pathogen (Ranavirus).

, 2009
(c) 2009 Teacher et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
Trenton W J Garner, Richard A. Nichols, Trenton W. J. Garner, Garner, TWJ, Teacher, AGF, Amber G F Teacher, Teacher Amber G. F., Richard A Nichols, Garner Trenton W. J., Amber G. F. Teacher, Nichols, RA, Nichols Richard A.   +11 more
core   +1 more source

Regulation of Antigen Export to the Cytosol During Cross-Presentation

Frontiers in Immunology, 2019
Cross-priming refers to the induction of primary cytotoxic CD8+ T cell responses to antigens that are not expressed in antigen presenting cells (APCs) responsible for T cell priming.
Marine Gros, Sebastian Amigorena
doaj   +1 more source