Research Article

Antigen-Specific Tissue-Resident Memory T Cells in the Respiratory System Were Generated following Intranasal Vaccination of Mice with BCG

Table 3

The expression of cytokines in T cells of the respiratory system and in blood before and after immunization.

NameSampleMedium group (mean %)BCG group (mean %) value

IFN-γ in T cellsLavage fluid0.3651.83750.0004
Nasal mucosa0.453.180.0001
Trachea0.342.24250.0003
Lung0.22252.83750.00009
Blood0.33750.370.5643

IL-2 in T cellsLavage fluid1.21336.12330.042
Nasal mucosa0.69675.410.014
Trachea0.584.74330.0054
Lung0.474.660.0034
Blood0.79670.750.9062

TNF-α in T cellsLavage fluid0.56335.30330.0009
Nasal mucosa0.80339.06330.0206
Trachea1.21675.83670.0052
Lung0.70674.47670.004
Blood1.40670.98330.5419

IFN-γ in CD4+ T cellsLavage fluid1.00754.23750.0004
Nasal mucosa1.1654.0550.0043
Trachea0.7154.460.0018
Lung0.81752.4150.0104
Blood0.50250.6250.5091

IL-2 in CD4+ T cellsLavage fluid0.79673.76330.0008
Nasal mucosa0.61334.96330.0018
Trachea0.46.27330.0007
Lung0.48334.210.0025
Blood0.57670.63330.8156

TNF-α in CD4+ T cellsLavage fluid1.024.73670.0121
Nasal mucosa0.88679.68670.0008
Trachea1.88674.930.0187
Lung0.576.38670.0005
Blood0.730.82670.7998

IFN-γ in CD8+ T cellsLavage fluid0.4752.720.0004
Nasal mucosa0.60252.11750.005
Trachea0.352.7750.0008
Lung0.4852.26750.0029
Blood0.18250.2050.5528

IL-2 in CD8+ T cellsLavage fluid1.04336.630.0002
Nasal mucosa1.14676.70670.0012
Trachea0.67337.25670.0004
Lung0.85675.65670.0020
Blood1.060.63670.0505

TNF-α in CD8+ T cellsLavage fluid0.78676.03330.004
Nasal mucosa0.74678.83330.0015
Trachea0.75677.00330.0011
Lung0.35374.790.0016
Blood1.34670.840.2428

Vaccination of mice with BCG induced the production and expression of IFN-γ, IL-2, and TNF-α by T cells in the lavage fluids, nasal mucosa, trachea, and lungs. Respiratory system tissues of lavage fluid, nasal mucosa, trachea, lung, and blood cells were stimulated for 12 hrs with or without BCG plus anti-CD28 in the presence of BFA in flow tubes. The cells were detected for the frequencies of INF-γ, IL-2, and TNF-α by FACS as mean. Statistical significance was determined with two-way ANOVA. , , and ; : no significance.