The role of the SLAM-SAP signaling pathway in the modulation of CD4+ T cell responses
Braz. j. med. biol. res
;
44(4): 276-282, Apr. 2011. ilus, tab
Article
in English
| LILACS
| ID: lil-581490
ABSTRACT
The signaling lymphocytic activation molecule (SLAM), present on the surface of hematopoietic cells, can regulate some events of the immune responses. This modulatory action is associated with the capacity of SLAM to interact with an intracytoplasmic adapter, such as SLAM-associated protein (SAP). SLAM is constitutively expressed in most of these cells, is rapidly induced after antigenic or inflammatory stimuli, and participates in the immunological synapse. Defects in the function of the SLAM-SAP pathway contribute to immunological abnormalities, resulting in autoimmune diseases, tumors of the lymphoid tissues and inadequate responses to infectious agents. Initially, the role of SLAM was investigated using an anti-SLAM monoclonal antibody (α-SLAM mAb) identified as an agonist of the SLAM-SAP pathway, which could induce the production of interferon-γ and could redirect the immune response to a T helper 1 (Th1) cell profile. However, in this review we postulate that the SLAM-SAP pathway primarily induces a Th2 response and secondarily suppresses the Th1 response.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Lymphocyte Activation
/
Signal Transduction
/
Antigens, CD
/
Receptors, Cell Surface
/
Intracellular Signaling Peptides and Proteins
Type of study:
Systematic reviews
Limits:
Humans
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
2011
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
FDC+BR
/
Instituto Federal de Educação, Ciência e Tecnologia do Ceará/BR
/
Universidade Federal do Ceará/BR
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