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Biomedical subjects

E F Wheelock

Publications and source records attributed to E F Wheelock.

At least 73 records · Page 4Linked to original sources
PubMed1969

Suppression of established Friend virus leukemia by statolon. I. Demonstration of a latent infection in clinically normal mice.

A single inoculation of statolon into mice with established Friend virus (FV) leukemia can suppress the viral infection and produce a clinical remission lasting many months. Eventually, however, most of the mice develop characteristic FV leukemia. Persistence of FV activity in the spleens of mice during clinical remission can be demonstrated by cell transfer and histopathologic studies. Transfer to normal mice of a large number of spleen cells (10(7)) from mice in remission produces FV leukemia, and transfer of a small number of cells (10(2)) produces immunity to FV challenge. Histopathologic examination reveals clusters of abnormal FV leukemia-like cells directly beneath the capsules of the spleens of mice in clinical remission.

Animals↗
PubMed1968

Specific role of each human leukocyte type in viral infections. II. Phytohemagglutinin-treated lymphocytes as host cells for vesicular stomatitis virus replication in vitro.

The mitogenic agent, phytohemagglutinin (PHA), added to human mixed leukocyte cultures and to lymphocyte cultures converted small lymphocytes into lymphoblasts and increased lymphocyte susceptibility to vesicular stomatitis virus (VSV). Maximum virus yields were 30- to 1,000-fold higher in PHA-treated than in control cultures. VSV replicated to peak titers before lymphocytes were morphologically transformed by PHA, and virus titers fell as lymphoblast destruction began. PHA neither induced significant VSV replication in polymorphonuclear leukocyte cultures, nor increased the large virus yields in monocyte cultures. The treatment of PHA with heat, digestive enzymes, rabbit anti-PHA serum and serial dilutions failed to dissociate that portion of the PHA extract responsible for the conversion of lymphocytes into virus-susceptible cells from those components responsible for leukoagglutination or lymphocyte transformation.

Culture Techniques↗
PubMed1967

Specific role of each human leukocyte type in viral infections. I. Monocyte as host cell for vesicular stomatitis virus replication in vitro.

Each major leukocyte type of the peripheral blood of healthy donors was studied in vitro for its ability to support vesicular stomatitis virus (VSV) replication. Purified cultures of each white blood cell type were prepared by the selective adsorption and elution of cells from silicone-treated glass beads. It was found that monocytes and macrophages (derived from the rapid transformation of monocytes in vitro) were the principal host cells for VSV replication. Interferon added to mixed leukocyte cultures, prior to virus inoculation, reduced virus yields and prevented destruction of macrophages. Cultures of small lymphocytes, containing no detectable monocytes or macrophages, produced amounts of virus equivalent to 1% of that produced in leukocyte cultures which contained 7% monocytes. Small lymphocytes did not undergo demonstrable cytopathic alterations in virus-infected cultures. VSV neither replicated nor produced cytopathic effects in polymorphonuclear leukocytes.

Culture Techniques↗
PubMed1966

Vesicular stomatitis virus replication in human leukocyte cultures: enhancement by phytohemagglutinin.

The replication of vesicular stomatitis virus in human leukocyte cultures shows that virus yields can be enhanced 6-to 180-fold by treating the leukocyte cultures with phytohemagglutinin prior to virus inoculation. Data suggest that a substance is produced in phytohemagglutinin-treated leukocyte cultures which is capable, on transfer to fresh leukocytes, of inducing blast cell formation and enhancing virus replication.

Adult↗