الفهرس 
Historical BackgroundOnly 14 pages are availabe for public view
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Abstract
It has been long recognized that T-lymphocytes are essential
in the immunity against tuberculosis (TB){Edwards and
Kirkpatrick, 1986.}. The interaction of mycobacteria with
alveolar macrophages leads to activation of T-lymphocytes . As
a result, interleukin-2 receptor (IL-2R)molecules are expressed
on their cell surface{Cantrell and Smith ,1983 }and soluble IL-
2R (s IL-2R) molecules are released into the circulation {Rubin
et al,1985}
As this soluble receptor retains some of the biological
activities of the cell-associated IL-2R molecule , including its
capacity to bind IL-2 efficiently { Rubin et al,1986 }, It is
possible that s IL-2R could play a regulatory role in the immune
response . Although the exact immunological role of s IL-2R is
not well-established ,it may serve as a marker of disease activity
in patient with pulmonary tuberculosis {Chan et al,1993}