We previously reported important differences in resistance to Taenia crassiceps murine cysticercosis between BALB/c substrains. It was suggested that resistance might correlate with expression of the nonclassic class I major histocompatibility complex (MHC) Qa-2 antigen; BALB/cAnN is Qa-2 negative and highly susceptible to T. crassiceps, whereas BALB/cJ expresses Qa-2 and is highly resistant. I...

After immunization, normal H-2 heterozygous mice (for example H-2(b) x H-2(d)) generate two populations of cytotoxic effector T cells, one specific for target cells expressing H-2(b)-plus-antigen and the other specific for H- 2(d)-plus-antigen. With a multideterminant antigen, these two populations have about the same activity. We show here that the H-2 type of resident cells in the thymus dete...

Enhancement and acceleration of the antibody response can be achieved in some situations with large, cytotoxic doses of whole body x-radiation given after antigenic stimulation. The timing of radiation is critical and varies with the kind and physical form of the antigen. It is postulated that the x-radiation depletes the cells of the lymphoid tissues just prior to the rapid proliferation of th...

BACKGROUND Sialyl Lewis X-i antigen has been used as a diagnostic tool for lung adenocarcinoma. However, serum levels of the antigen are also raised in some patients with idiopathic pulmonary fibrosis (IPF) without coexistent malignancy. Expression of the antigen in serum samples of patients with lung adenocarcinoma was evaluated and compared with that of patients with IPF by Western blotting i...

The proposal was tested that (P1 X P2) F1 leads to P1 irradiation bone marrow chimeras expressed predominantly P1-restricted T cells because donor derived stem cells were exposed to recipient derived antigen-presenting cells in the thymus. Because P1 recipient-derived antigen-presenting cells are replaced only slowly after 6-8 wk by (P1 X P2) donor-derived antigen-presenting cells in the thymus...

In pronunciation, influenced by American English, a shift in Brunei English can be observed the increasing use of [r] tokens such as car and heard particularly among younger speakers whose pronunciation may English. contrast, older tend to omit sound these their more British However, it is unclear whether has vocabulary education system favours due its historical ties with Britain. This paper a...

The protein X of Steptococcus agalactiae is a surface antigen included in the typing scheme of group B streptococci (GBS). We have developed a monoclonal antibody to the protein X and used it to purify this antigen by affinity chromatography. Electrophoresis in polyacrylamide, and immunoblotting using the monoclonal antibody or a rabbit antiserum raised with the affinity purified protein X, rev...