The present study highlights about inhaled mica flakes and
vitamin B12 intercalated clay particles trigger multiple sclerosis. Multiple
sclerosis (MS) is the commonest devastating neurodegenerative disease in young
adults in high lattitudes Soil dust containing both weathered mica particles
and vitamin B12 containing clay particles (“transformation smectite“ particles)
can activate myelin specific CD4+ T cells in lung. CD4+ central memory type T
cell (resting phenotype) receptor is activated by soluble MHC II when it is
anchored on mica particle surface and T cell adheres also on the same mica
surface. Further prerequisite is that at the same time smectite clay particle
intercalated with vitamin B 12 is endocytosed into the same T cell. Vitamin B12
(B12) plays a cell-autonomous role in reprogramming lymphoblasts (in this case
memory B-cells and central memory T-cells). B12 affects in vivo reprogramming
lymphoblasts through one carbon metabolism enhancing H3K36me3 histone
methylation. T cell activation requires 1) T cell receptor activation and 2) T
cell metabolic changes from oxidative phosphorylation to aerobic glycolysis. In
classical activation model co-receptor B 28 activation changes T cell
metabolism to oxidative glycolysis. In this case at the wrong time dosed
vitamin B 12 changes T cell metabolism to oxidative glycolysis using
anaplerotic feeding of TCA-cycle, permitting T cell activation to effector
phenotype pathologic T cell. The hypothesis is based on new findings in
immunobiology and on epidemiological observations.
Author(s) Details:
S. K. Junnila,
Health Centre of The Town of Haapajärvi, 85800 Haapajärvi, Finland.
Please see the link here: https://stm.bookpi.org/NVMMS-V1/article/view/13658
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