To evaluate the effect of tocilizumab (TCZ), an interleukin 6 receptor inhibitor, on humoral immune responses to immunisations in patients with rheumatoid arthritis (RA).
However, neither this observational analysis, nor our other published data [ 18], support the argument of Labeaud et al. that treatment of antenatal helminth infections would improve infant responses to immunisations [ 14].
He said: "It is a mystery how that person [Mr Mohammed] could have produced those antibodies in response to immunisation, so the immunisation would appear to have worked, but still remain infectious for hepatitis B".
"It is a mystery how that person could have produced those antibodies in response to immunisation, so the immunisation would appear to have worked, but still remain infectious for hepatitis B.
The serum response to immunisation was characterised by pneumococcal PS-specific ELISA.
The serum IgM response to immunisation was reduced in the older cohort at days 7 and 28 postimmunisation (Fig. 4c).
This difference demonstrates that Tfr cells are generated in response to immunisation, not prior to GC induction, and are therefore unlikely to suppress the formation of the GC response.
Consistent with this, CD28-negative transgenic mice exhibit profound defects in mitogenic responses (Shahinian et al, 1993), and germinal centres are not formed in response to immunisation (Ferguson et al, 1996).
Moreover, it has been hypothesised that in utero exposure of the child to maternal helminth infection may have a long-term effect on the child's immunological development, including their response to immunisation [ 16, 17].
There is evidence that Th1-type immune responses are modulated in life in response to immunisation and infection, and there are data to support the view that these exposures, particularly in early life, may influence the subsequent development of diseases such as atopy.
