Lymphocyte proliferation in response to Brucella abortus RB51 and 2308 proteins in RB51-vaccinated or 2308-infected cattle.

AUTOR(ES)

Stevens, M G

RESUMO

Cattle vaccinated with Brucella abortus strain RB51 (SRB51) or infected with strain 2308 (S2308) had lymph node lymphocytes which proliferated most when incubated with 32-, 27-, 18-, or <18-kDa proteins of either SRB51 or S2308. Some S2308-infected cattle but no SRB51-vaccinated cattle had lymphocytes which proliferated in response to 80- and 49-kDa proteins of SRB51 and S2308. These results suggest that cattle vaccinated with SRB51 or infected with S2308 have lymphocytes which proliferate in response to most of the same S2308 proteins and that the immunodominant protein antigens of SRB51 and S2308 have similar molecular masses of 32, 27, 18, and <18 kDa.

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