Recent studies indicate that a large proportion of cytotoxic T cells are directed towards the Epstein-Barr virus (EBV) during both acute infection and convalescence. The virus, in turn, has usurped cellular pathways to promote proliferation of infected cells and has pirated cellular genes into its g
Comparative studies of Epstein-barr virus strains from Ghana and the United States
✍ Scribed by Paul Gerber; Francis K. Nkrumah; Randall Pritchett; Elliott Kieff
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- French
- Weight
- 966 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0020-7136
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
A high incidence of oropharyngeal excretion of Epstein‐Barr virus (EBV) has been observed in African children with Burkitts lymphoma (BL) (48%) and matched controls (45%). This compares with an incidence of 77% in American patients with infectious mononucleosis (IM) and 13% in age‐matched controls. Cross‐neutralization tests between EBV strains derived from BL and IM patients and their sera failed to detect differences in the major neutralizing antigenic components. Cord‐blood lymphocytes transformed by American EBV expressed only early viral functions (EBV nuclear and soluble complement‐fixing antigens) and produced no detectable transforming activity. By contrast, cord‐blood lymphocytes transformed by African EBV strains contained 0.2‐0.3% of cells with EBV capsid and early antigen and produced EBV with transforming activity. These cells contained twice as many copies of EBV homologous DNA as the cells tranformed by American EBV strains.
📜 SIMILAR VOLUMES
## Abstract EBV genotypes of first‐ and second‐generation Chinese diagnosed with nasopharyngeal carcinoma in the United States were analyzed by PCR techniques. Previous studies showed a geographical distribution of genotypically distinct sub‐types of EBV. Viruses detected at a higher frequency amon
## Abstract We have used human‐mouse somatic cell hybrid cells to study the association between the EBV genome and the cellular genome. Attempts were made to identify a specific human chromosome(s) with which the EBV genome is associated. Our data suggest that at least in the mouse fibroblast/Burki
Nasopharyngeal carcinoma (NPC) occurs with a striking geographic incidence and is endemic in parts of southern China, where it is the major cause of cancer death. Epstein-Barr virus (EBV) is detected in all cells of the majority of NPC cases regardless of geographic origin. A small subset of EBV gen
## Abstract Variation of Epstein‐Barr virus (EBV) in respect to its effect on the properties of transformed cells was probed. Human umbilical cord leukocytes from six different individuals were transformed in vitro by either B95‐8 (B) or QIMR‐WIL (Q) strains of EBV and subsequently 12 lymphoblastoi
## Abstract The biological properties of Epstein‐Barr virus (EBV) from a Burkitt lymphoma cell line, Jijoye, were examined. The synthesis of virus capsid antigen (VGA) and early antigen (EA) in Jijoye cells was markedly enhanced by shift‐down of the temperature of incubation from 37°C to 33°C. Cult