Abstract：
:It is well documented that adjuvants improve the immune response generated by traditional viral vaccines, but less is known about the effects of adjuvants on the immune response elicited by DNA vaccines. In this study, we have investigated the use of RN-205 (immunomodulator containing a membrane rich in lipopolysaccharide from gram-negative bacteria) as an adjuvant and analyzed the humoral and cellular specific immune responses elicited by DNA vaccines based on the bovine herpesvirus-1 (BHV-1) glycoprotein D (gD). The comparison of the antibody response induced in mice by a mixture of the three different versions of DNA gD (membrane-anchored, secreted and cytosolic) formulated with or without RN-205 showed that the immunomodulator did not affect the total specific humoral response. The cellular immune response induced in mice immunized with vaccines plus RN-205 was higher than that obtained in mice vaccinated without RN-205, not only in the indexes of proliferation tests but in the number of IL-4 and gammaIFN secreting cells. When total spleen cells were marked with specific monoclonal antibodies against surface markers, a significant increase in the macrophage population of all the groups receiving RN-205 was observed. CD8 and CD4 positive cells were also increased but to a lesser extent. Our results indicate that the incorporation of RN-205 into DNA vaccines induces an increase of the cellular specific immune response in mice.
journal_name
Vaccinejournal_title
Vaccineauthors
Zamorano P,Taboga O,Domínguez M,Romera A,Puntel M,Tami C,Mongini C,Waldner C,Palma E,Sadir Adoi
10.1016/s0264-410x(02)00211-6subject
Has Abstractpub_date
2002-06-21 00:00:00pages
2656-64issue
21-22eissn
0264-410Xissn
1873-2518pii
S0264410X02002116journal_volume
20pub_type
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