Detection of herpes simplex virus DNA sequences in human blood and bone marrow cells.
Herpes simplex virus type 1 (HSV1) establishes latent infections in neural tissues of humans and experimental animals. Utilizing a sensitive polymerase chain reaction (PCR) assay we detected HSV DNA sequences in blood cells of healthy prospective bone marrow transplant (BMT) donors and patients. In three healthy individuals studied, HSV DNA sequences were found in all blood cell types and also in bone marrow cells as well as in stem cell progenitor colonies isolated from in vitro cultures. Studies of BMT donor-recipient pairs suggested that HSV reactivation may occur in hematopoietic cells after transplantation, as the PCR signal intensity increased over time simultaneous with an increased antibody titer to HSV. In a mouse model for HSV infection, HSV DNA sequences were found in blood and bone marrow cells at the latent stage of infection, after intravenous (IV) inoculation, but not after ocular inoculation. These studies suggest that bone marrow cells may be an additional site of HSV latency capable of reactivation after BMT. These studies have broad implications for understanding pathogenesis of HSV disease and are of particular significance in situations where allogeneic bone marrow cells are given therapeutically.
Cantin
E
E
Department of Neurology, City of Hope National Medical Center, Duarte, California 91010.
Chen
J
J
Gaidulis
L
L
Valo
Z
Z
McLaughlin-Taylor
E
E
D000328:Adult; D000818:Animals; D001483:Base Sequence; D001773:Blood Cells / Q000382:microbiology*; D001853:Bone Marrow / Q000382:microbiology*; D016026:Bone Marrow Transplantation; D002353:Carrier State / Q000097:blood / Q000382:microbiology; D002478:Cells, Cultured; D004279:DNA, Viral / Q000032:analysis*; D005260:Female; D006412:Hematopoietic Stem Cells / Q000382:microbiology*; D006561:Herpes Simplex / Q000097:blood / Q000150:complications / Q000382:microbiology; D006801:Humans; D007938:Leukemia / Q000150:complications / Q000382:microbiology; D008297:Male; D051379:Mice; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D018139:Simplexvirus / Q000235:genetics / Q000302:isolation & purification*; D014019:Tissue Donors; D017735:Virus Latency
D004279:DNA, Viral