Results 31 to 40 of about 1,358,589 (334)

The Multifaceted Roles of B Cells in the Thymus: From Immune Tolerance to Autoimmunity

open access: yesFrontiers in Immunology, 2021
The thymus is home to a significant number of resident B cells which possess several unique characteristics regarding their origin, phenotype and function.
Justine Castañeda   +7 more
doaj   +1 more source

What lies beneath: exploring links between asylum policy and hate crime in the UK [PDF]

open access: yes, 2010
This paper explores the link between increasing incidents of hate crime and the asylum policy of successive British governments with its central emphasis on deterrence.
A Dummett   +59 more
core   +1 more source

The Thymus and Central Tolerance [PDF]

open access: yesClinical Immunology, 2000
T–cell differentiation in the thymus generates a peripheral repertoire of mature T cells that mounts strong responses to foreign antigens but is largely unresponsive to self–antigens. This state of specific immunological tolerance to self–components involves both central and peripheral mechanisms.
J, Sprent, H, Kishimoto
openaire   +4 more sources

CCR7 Modulates the Generation of Thymic Regulatory T Cells by Altering the Composition of the Thymic Dendritic Cell Compartment

open access: yesCell Reports, 2017
Upon recognition of auto-antigens, thymocytes are negatively selected or diverted to a regulatory T cell (Treg) fate. CCR7 is required for negative selection of auto-reactive thymocytes in the thymic medulla.
Zicheng Hu   +8 more
doaj   +1 more source

Is T Cell Negative Selection a Learning Algorithm?

open access: yesCells, 2020
Our immune system can destroy most cells in our body, an ability that needs to be tightly controlled. To prevent autoimmunity, the thymic medulla exposes developing T cells to normal “self” peptides and prevents any responders from entering ...
Inge M. N. Wortel   +4 more
doaj   +1 more source

Half a century of research on diatoms in athalassic habitats in central Poland [PDF]

open access: yes, 2015
The authors would like to dedicate this paper to Prof. Marcin Pliński who started the phycological research in these unique habitats of Central Poland.Part of the geology in the Łódź province was formed during the Upper Permian period when rich ...
Nowicka-Krawczyk, Paulina   +2 more
core   +1 more source

Thymic Epithelial Cell Alterations and Defective Thymopoiesis Lead to Central and Peripheral Tolerance Perturbation in MHCII Deficiency

open access: yesFrontiers in Immunology, 2021
Major Histocompatibility Complex (MHC) class II (MHCII) deficiency (MHCII-D), also known as Bare Lymphocyte Syndrome (BLS), is a rare combined immunodeficiency due to mutations in genes regulating expression of MHCII molecules.
Francesca Ferrua   +41 more
doaj   +1 more source

First Record of \u3ci\u3eAphis Helianthi\u3c/i\u3e (Homoptera: Aphididae) as a Pest of Celery [PDF]

open access: yes, 2017
In 1989, the aphid Aphis helianthi severely damaged five of 10 scouted celery fields in west central Michigan. In 1990 and in 1991, A. helianthi again was a problem. reaching pestiferous levels in three of 10 and two of 10 scouted fields.
Davis, M. G. Kortier, Grafius, E.
core   +2 more sources

Redefining thymus medulla specialization for central tolerance. [PDF]

open access: yesJ Exp Med, 2017
During αβT cell development, the thymus medulla represents an essential microenvironment for T cell tolerance. This functional specialization is attributed to its typical organized topology consisting of a branching structure that contains medullary thymic epithelial cell (mTEC) networks to support negative selection and Foxp3+ T-regulatory cell (T-reg)
Cosway EJ   +8 more
europepmc   +4 more sources

Mechanisms of immunological tolerance in central nervous system inflammatory demyelination. [PDF]

open access: yes, 2015
Multiple sclerosis is a complex autoimmune disease of the central nervous system that results in a disruption of the balance between pro-inflammatory and anti-inflammatory signals in the immune system.
Anderton   +129 more
core   +2 more sources

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