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Presence Of Rd149 Deletions In M. Tuberculosis Central Asian Strain 1 Isolates Affect Growth And Tnfalpha Induction In Thp-1 Monocytes., Akber Kanji, Zahra Hasan, Mehnaz Tanveer, Raunaq Mahboob, Sana Jafri, Rumina Hasan
Presence Of Rd149 Deletions In M. Tuberculosis Central Asian Strain 1 Isolates Affect Growth And Tnfalpha Induction In Thp-1 Monocytes., Akber Kanji, Zahra Hasan, Mehnaz Tanveer, Raunaq Mahboob, Sana Jafri, Rumina Hasan
Department of Pathology and Laboratory Medicine
Central Asian Strain 1 (CAS1) is the prevalent Mycobacterium tuberculosis genogroup in South Asia. CAS1 strains carry deletions in RD149 and RD152 regions. Significance of these deletions is as yet unknown. We compared CAS1 strains with RD149 and concurrent RD149-RD152 deletions with CAS1 strains without deletions and with the laboratory reference strain, M. tuberculosis H37Rv for growth and for induction of TNFα, IL6, CCL2 and IL10 in THP-1 cells. Growth of CAS1 strains with deletions was slower in broth (RD149; p = 0.024 and RD149-RD152; p = 0.025) than that of strains without deletions. CAS1 strains with RD149 deletion strains …