It is highly PS-341 solubility dmso satisfying that the Congress format of master lectures, theme-based symposia and oral workshop sessions were much appreciated. The meeting witnessed a full house attendance on all three days, thanks to the participation of a large number of young and enthusiastic scientists. The inclusion of (i) Ten Best Oral Presentations session, (ii) round table discussion on gender equality issues and (iii) the concept of ePoster viewing (Fig. 3) turned out to be the three major highlights of the meeting. “
“RD15 is a genomic region of difference (RD) present in Mycobacterium

tuberculosis H37Rv but absent in all strains of Mycobacterium bovis BCG. RD15 contains genes encoding proteins of mammalian cell entry (Mce3A-F), important for the invasion and survival of M. tuberculosis in host cells. In

this study, we have evaluated cellular immune responses to RD15 proteins using peripheral blood mononuclear cells (PBMC) from pulmonary tuberculosis patients and M. bovis BCG-vaccinated healthy subjects. PBMC were tested for T-helper (Th) type 1 [antigen-induced Crizotinib nmr proliferation and interferon (IFN)-γ secretion] and anti-inflammatory [interleukin (IL)-10 secretion] responses to complex mycobacterial antigens and peptides corresponding to proteins of RD1 and RD15. In Th1 assays, complex mycobacterial antigens Adenosine triphosphate induced strong responses in both donor groups, and RD1 induced strong responses in tuberculosis patients and moderate responses in healthy subjects, whereas RD15 induced weak responses in tuberculosis patients and strong to moderate responses in healthy subjects. IL-10 secretion in both donor groups was strong to moderate in response to complex mycobacterial antigens, but weak in response to RD1 and RD15. Analysis of IFN-γ : IL-10 ratios showed strong Th1 biases to complex mycobacterial antigens and RD1 in both donor groups, and to RD15 and RD1504 (Mce3A) in healthy subjects

only. These results suggest that RD1504 is the best Th1-stimulating antigen present in RD15, and therefore may be a potential vaccine candidate against TB. Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), is estimated to infect one-third of the world’s population, and causes active disease in about 9.3 million people per year, with nearly 1.8 million deaths (WHO Report, 2009). The global control of TB requires specific diagnostic reagent(s) and effective vaccine(s) capable of protection in all parts of the world against all forms of the disease (Smith, 2009). The only available vaccine for use against TB is the bacillus Calmette–Guerin (BCG), a live attenuated strain of the virulent bovine tubercle bacillus Mycobacterium bovis.