Abstract:
:Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis (Mtb), leading to high mortality worldwide. It is well-established that cellular immunity plays a critical role to control Mtb infection. Dendritic Cells (DCs) are potent antigen presenting cells, which play an important role to prime cell-mediated immune responses. In vivo targeting of DCs has been shown to induce both strong cellular immunity and protection against tumor challenges. The aim of the present study was not only to assess the immunizing potential of a novel DC-targeted recombinant lentivirus expressing fusion antigen Ag85A-ESAT6 of Mtb, but also to compare it with a recombinant lentivirus with broad cellular tropism expressing the same antigen in mice. The findings demonstrated that our novel recombinant DC-targeted lentivector was able to successfully transduce and express the fusion antigen Ag85A-E6 in vitro and in vivo. Moreover, a single footpad injection of targeted lentivectors could elicit strong T-helper 1 (Th1) immunity against the above mentioned antigen, as indicated by the specific high-level production of IFN-γ and IL-2 using spleen lymphocytes and lymphoproliferative responses. Despite of these promising results, more attempts are required to elucidate the protective and therapeutic efficacy of this approach in future.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Shakouri M,Moazzeni SM,Ghanei M,Arashkia A,Etemadzadeh MH,Azadmanesh Kdoi
10.1016/j.molimm.2016.04.014subject
Has Abstractpub_date
2016-07-01 00:00:00pages
101-11eissn
0161-5890issn
1872-9142pii
S0161-5890(16)30073-6journal_volume
75pub_type
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