Tl. Varadinova et al., ANTIVIRAL AND IMMUNOLOGICAL ACTIVITY OF A NEW PAVINE ALKALOID (-)-THALIMONINE ISOLATED FROM THALICTRUM-SIMPLEX, PTR. Phytotherapy research, 10(5), 1996, pp. 414-417
A pavine alkaloid (-)-thalimonine, at a nontoxic concentration range b
etween 0.1 and 100 mu M was investigated for antiviral and immunologic
al activity. The alkaloid irreversibly inhibited the replication of he
rpes simplex virus type 1 (HSV-1) in MDBK cells with no effect on free
virions. The (-)-thalimonine enhanced the proliferation induced by T-
cell mitogens (PHA, ConA) at lower concentrations and suppressed the a
ction of B-cell mitogen (LPS) in vitro. Splenic cells from mice pretre
ated with (-)-thalimonine had an elevated response to PHA and a lowere
d response to LPS.