TY - JOUR
T1 - Avian lymphoid leukosis virus infection and DNA integration in the preleukotic bursal tissues
T2 - A comparative study of susceptible and resistant lines
AU - Fling, Yuen Kai T
AU - Fadly, Aly M.
AU - Crittenden, Lyman B.
AU - Kung, Hsing Jien
N1 - Funding Information:
We thank Drs. J. M. Bishop, B. DeLorbe, D. Shei-ness, and H. E. Varmus for providing the cloned DNAs for the syntheses of radioactive probes. We also thank Drs. E. J. Smith, A. Revzin, J. Dodgson and H. E. Varmus for reviewing the manuscript, and Ms. S. Uselton for excellent assistance. The work was supported in part by NSF Grant PCM-8021839 and USPHS Grant CA 2479-01.
PY - 1982/1/1
Y1 - 1982/1/1
N2 - Lymphoid leukosis (LL) is a naturally occurring neoplastic disease of chickens, caused by avian lymphoid leukosis virus (ALV). Most inbred lines of chickens, susceptible to virus infection, are also susceptible to LL development. An interesting exception is line 63 which rarely develops LL after virus infection. To obtain more information concerning the resistance of line 63 to LL, we have compared virus infection and integration in bursal tissues of resistant line 63 and a susceptible cross (1515 × 71) after virus inoculation into day-old chicks. We report here that (a) the bursa tissues in both lines are infected to similar extent and (b) the initial viral infections in both lines lead to "random" integration of proviruses in the chromosomes of the bursal tissues. Only in the tumors developing later in the susceptible line can specific integration of provirus near a cellular oncogene, c-myc, be detected. Based on these data, the mechanism of resistance of line 63 to LL is discussed.
AB - Lymphoid leukosis (LL) is a naturally occurring neoplastic disease of chickens, caused by avian lymphoid leukosis virus (ALV). Most inbred lines of chickens, susceptible to virus infection, are also susceptible to LL development. An interesting exception is line 63 which rarely develops LL after virus infection. To obtain more information concerning the resistance of line 63 to LL, we have compared virus infection and integration in bursal tissues of resistant line 63 and a susceptible cross (1515 × 71) after virus inoculation into day-old chicks. We report here that (a) the bursa tissues in both lines are infected to similar extent and (b) the initial viral infections in both lines lead to "random" integration of proviruses in the chromosomes of the bursal tissues. Only in the tumors developing later in the susceptible line can specific integration of provirus near a cellular oncogene, c-myc, be detected. Based on these data, the mechanism of resistance of line 63 to LL is discussed.
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U2 - 10.1016/0042-6822(82)90100-3
DO - 10.1016/0042-6822(82)90100-3
M3 - Article
C2 - 6281983
AN - SCOPUS:0020080935
SN - 0042-6822
VL - 119
SP - 411
EP - 421
JO - Virology
JF - Virology
IS - 2
ER -
