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Jean Daniel Lelie ` vre and Yves Le ´ vy Purpose of review Introduction HIV infection is characterized by depletion of CD4 T cells The immune system, similar to other biological systems, and altered immune function, leading to severe immune is subject to homeostatic regulation, which ensures that deficiency. Mechanisms leading to this T-cell depletion are there is a largely constant total number of lymphocytes in not completely understood. Potent antiretroviral therapy the periphery. Maintenance of this equilibrium is restores T-cell counts and improves prognosis. Apart from achieved through complex cellular interactions that antiviral therapy for the infection, immunotherapies such as control cell proliferation, differentiation and death, and interleukin-7 that influence T-cell homeostatic mechanisms through numerous cytokines and interactions with the are undergoing clinical evaluation. Because of its environment (i.e. bone marrow, thymus, spleen, intestine pleiotropic effects on developing and mature T cells, and lymph nodes) in which the early and final processes interleukin-7 may help to restore immune function during in T-cell differentiation take place. Re-establishment of HIV infection. the status quo is possible in a relatively unperturbed Recent findings immune system, but immune function is compromised Recent studies explored the therapeutic use of interleukin-7 in situations involving
Current Opinion in HIV and Aids – Wolters Kluwer Health
Published: May 1, 2007
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