TY - JOUR KW - Antibody Formation KW - Antigens, Bacterial KW - BCG Vaccine KW - Cross Reactions KW - Humans KW - Immunoelectrophoresis, Two-Dimensional KW - Mycobacterium Infections KW - Mycobacterium bovis KW - Mycobacterium leprae KW - Mycobacterium tuberculosis KW - Radioimmunoassay AU - Harboe M AU - Closs O AU - Bjorvatn B AU - Bjune G AB -

A sensitive specific radioimmunoassay was developed to measure antibodies against BCG antigen 60, a prominent antigenic component of BCG bacilli which cross-reacts with similar components in many mycobacterial species including Mycobacterium leprae and M tuberculosis. A lepromatous serum pool had anti-BCG-60 activity with a titre of 10(5) and the tuberculoid pool a titre of 10(4). Testing of individual sera showed striking variations within groups of patients with lepromatous and tuberculoid leprosy. In five of the 20 tuberculoid leprosy sera the anti-BCG-60 activity was above the median for the lepromatous group. The current view that antibody formation against mycobacterial antigens is very low in tuberculoid leprosy thus no longer appears to be tenable. Sera from eight patients with active pulmonary tuberculosis also showed a striking variation in anti-BCG-60 content, and the median value of this group was even higher than in those with lepromatous leprosy.

BT - British medical journal C1 - http://www.ncbi.nlm.nih.gov/pubmed/407965?dopt=Abstract DA - 1977 Aug 13 DO - 10.1136/bmj.2.6084.430 IS - 6084 J2 - Br Med J LA - eng N2 -

A sensitive specific radioimmunoassay was developed to measure antibodies against BCG antigen 60, a prominent antigenic component of BCG bacilli which cross-reacts with similar components in many mycobacterial species including Mycobacterium leprae and M tuberculosis. A lepromatous serum pool had anti-BCG-60 activity with a titre of 10(5) and the tuberculoid pool a titre of 10(4). Testing of individual sera showed striking variations within groups of patients with lepromatous and tuberculoid leprosy. In five of the 20 tuberculoid leprosy sera the anti-BCG-60 activity was above the median for the lepromatous group. The current view that antibody formation against mycobacterial antigens is very low in tuberculoid leprosy thus no longer appears to be tenable. Sera from eight patients with active pulmonary tuberculosis also showed a striking variation in anti-BCG-60 content, and the median value of this group was even higher than in those with lepromatous leprosy.

PY - 1977 SP - 430 EP - 3 T2 - British medical journal TI - Antibodies against BCG antigen 60 in mycobacterial infection. VL - 2 SN - 0007-1447 ER -