Results 31 to 40 of about 6,990,145 (285)

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

Alloactivation of Naïve CD4+CD8−CD25+T Regulatory Cells: Expression of CD8α Identifies Potent Suppressor Cells That Can Promote Transplant Tolerance Induction

open access: yesFrontiers in Immunology, 2019
Therapy with alloantigen-specific CD4+CD25+ T regulatory cells (Treg) for induction of transplant tolerance is desirable, as naïve thymic Treg (tTreg) are not alloantigen-specific and are weak suppressor cells.
Nirupama D. Verma   +11 more
doaj   +1 more source

MHC Class II Presentation in Autoimmunity

open access: yesCells, 2023
Antigen presentation by major histocompatibility complex class II (MHC-II) molecules is crucial for eliciting an efficient immune response by CD4+ T cells and maintaining self-antigen tolerance.
Irina A. Ishina   +5 more
doaj   +1 more source

Activity Based Tolerance Allocation (ABTA) – Driving tolerance synthesis by evaluating its global cost [PDF]

open access: yes, 2009
This paper deals with tolerance allocation driven by an activity based approach. Its main objective is to rationally give a good indicator of the relevance of tolerances values fixed by designers.
MARTIN, Patrick   +3 more
core   +1 more source

Tolerance analysis approach based on the classification of uncertainty (aleatory / epistemic) [PDF]

open access: yes, 2012
Uncertainty is ubiquitous in tolerance analysis problem. This paper deals with tolerance analysis formulation, more particularly, with the uncertainty which is necessary to take into account into the foundation of this formulation.
Qureshi, A.J.   +9 more
core   +1 more source

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

The Role of Viral Infections in the Onset of Autoimmune Diseases

open access: yesViruses, 2023
Autoimmune diseases (AIDs) are the consequence of a breach in immune tolerance, leading to the inability to sufficiently differentiate between self and non-self.
Bhargavi Sundaresan   +3 more
doaj   +1 more source

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