Human Soluble cluster of differentiation 30 ligand ELISA kit

OBJECTIVE: To investigate the association between 347 single-nucleotide polymorphisms within candidate genes of the tumor necrosis factor, interleukin 1 and interieukin 6 families with neutrophil count. PATIENTS AND METHODS: Four hundred cases with heart failure after myocardial Infarction (MI) were matched by age, sex, and date of incident MI to 694 controls (MI without post-MI heart failure). Both genotypes and neutrophil count at admission for incident MI were available in 314 cases and 515 controls. RESULTS: We found significant associations between the TNFSF8 polymorphisms rs927374 (P=5.1 x 10(-5)) and rs2295800 (P=1.3 x 10(-4)) and neutrophil count; these single-nucleotide polymorphisms are in high linkage dlsequilibrium (r(2)=0.97). Associations persisted after controlling for clinical characteristics and were unchanged after adjusting for case-control status. For rs927374, the neutrophil count of GG homozygotes (7.6 +/- 5.1) was 16% lower than that of CC homozygotes (9.0 +/- 5.2). CONCLUSION: The TNFSF8 poiymorphisms rs927374 and rs2295800 were associated with neutrophil count. This finding suggests that post-MI inflammatory response is genetically modulated. Mayo Clin Proc. 2011;86(11):1075-1081

Mycobacterium tuberculosis infection (Mtb) is the leading cause of death due to a single infectious agent and is among the top ten causes of all human deaths worldwide'. CD4 T cells are essential for resistance to Mtb infection, and for decades it has been thought that IFN gamma production is the primary mechanism of CD4 T-cell-mediated protection(2,3). However, IFN gamma responses do not correlate with host protection, and several reports demonstrate that additional anti-tuberculosis CD4 T-cell effector functions remain unaccounted for(4-8).Here we show that the tumour-necrosis factor (TNF) superfamily molecule CD153 (encoded by the gene Tnfsf8) is required for control of pulmonary Mtb infection by CD4 T cells. In Mtb-infected mice, CD153 expression is highest on Mtb-specific T helper 1 (T(H)1) cells in the lung tissue parenchyma, but its induction does not require T(H)1 cell polarization. CD153-deficient mice develop high pulmonary bacterial loads and succumb early to Mtb infection. Reconstitution of T-cell-deficient hosts with either Tnfsf8-/- or Ifng-/- CD4 T cells alone fails to rescue mice from early mortality, but reconstitution with a mixture of Tnfsf8(-/-) and Ifng(-/-) CD4 T cells provides similar protection as wild-type T cells. In Mtb-infected non-human primates, CD153 expression is much higher on Ag-specific CD4 T cells in the airways compared to blood, and the frequency of Mtb-specific CD153-expressing CD4 T cells inversely correlates with bacterial loads in granulomas. In Mtb-infected humans, CD153 defines a subset of highly polyfunctional Mtb-specific CD4 T cells that are much more abundant in individuals with controlled latent Mtb infection compared to those with active tuberculosis. In all three species, Mtb-specific CD8 T cells did not upregulate CD153 following peptide stimulation. Thus, CD153 is a major immune mediator of host protection against pulmonary Mtb infection and CD4 T cells are one important source of this molecule.