Interferon inhibition of the primary in vitro antibody response to a thymus-independent antigen

Autor: Samuel Baron, Howard M. Johnson, Joann A. Bukovic
Rok vydání: 1975
Předmět:
Zdroj: Cellular Immunology. 20:104-109
ISSN: 0008-8749
DOI: 10.1016/0008-8749(75)90089-1
Popis: Partially purified and crude mouse L cell interferon preparations inhibited the in vitro plaque-forming cell (PFC) response of mouse C57B1/6 spleen cells to the T-cell independent lipopolysaccharide antigen of Escherichia coli 0127. PFC responses of 5-day cultures were inhibited approximately 70–90% by 100–200 NIH reference units of interferon/culture. A similar inhibitory effect was obtained with spleen cells from athymic (nude) mice homozygous for the nu/nu allele. Spleen cultures depleted of adherent cells were also inhibited in their anti-0127 PFC response by interferon. Interferon, then, appears capable of inhibiting the PFC response to E. coli 0127 via direct action on B cells. Heating experiments along with the use of interferon preparations of different specific activities suggest that the inhibition was due to the interferon in the preparations.
Databáze: OpenAIRE