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Chin Med J (Engl). 1997 May;110(5):397-400.

Human cytomegalovirus matrix protein PP150 is efficiently presented as one of target antigens for cytotoxic T lymphocyte recognition.

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Children's Hospital, Chongqing University of Medical Sciences, China.



To determine whether human cytomegalovirus (CMV) matrix protein PP150 is efficiently presented for CMV-specific CTL recognition.


Recombinant vaccinia virus (Vac. PP150) encoding human CMV structural matrix protein PP150 was constructed with vaccinia vector PSC11 and it was used to stimulate peripheral blond mononuclear cells from 5 CMV seropositive individuals.


PP150-specific CTLs could be generated in all of them, which not only lysed Vac. PP150-infected fibroblasts, but also lysed CMV-infected targets. In the presence of RNA synthesis inhibitor Actinomycin D (Act D) or at very early stage of infection, PP150-specific CTL lysed CMV-infected targets as efficiently as in the absence of Act D or at late stage of infection.


PP150 exogenously introduced with the virus infection could be efficiently presented prior to viral DNA replication and PP150 is one of the major target antigens for CTL recognition.

[Indexed for MEDLINE]

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