Abstract:
:Induction of cathelicidin-mediated antimicrobial pathway against intracellular M. tuberculosis by 1,25-dihydroxyvitamin D3 (1,25(OH)2D3), the active form of vitamin D, has been documented in vitro. However, in in vivo studies related to inflammatory disorders, 1,25(OH)2D3 has been demonstrated to induce an anti-inflammatory response. We therefore examined whether in the murine model of tuberculosis, the anti-inflammatory effects of 1,25(OH)2D3 would affect the outcome of M. tuberculosis infection. We show here that administration of 1,25(OH)2D3 to M. tuberculosis infected mice led to a change in lung granuloma architecture, characterized by a marked decrease in B cell lymphocytic aggregates. Consistent with the altered granulomas, 1,25(OH)2D3-treated mice also exhibited significantly higher bacterial burden in the lungs compared to the control group. These findings highlight the need to further investigate the effect of vitamin D on host immunity to M. tuberculosis in the context of the granulomatous response.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Bhatt K,Rafi W,Shah N,Christakos S,Salgame Pdoi
10.1038/srep34469subject
Has Abstractpub_date
2016-10-04 00:00:00pages
34469issn
2045-2322pii
srep34469journal_volume
6pub_type
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