A pancreas specificity results from the combination of polyomavirus and Moloney murine leukemia virus enhancer.
Author(s) -
Rosemary Rochford,
B A Campbell,
Luis P. Villarreal
Publication year - 1987
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.84.2.449
Subject(s) - murine leukemia virus , enhancer , biology , recombinant dna , virology , leukemia , genome , virus , microbiology and biotechnology , gene , genetics , transcription factor
An infectious recombinant polyomavirus was constructed in which a regulatory region of its genome, the B enhancer region (nucleotides 5128-5265) has been replaced with the 72- or 73-base-pair repeat enhancer from the Moloney murine leukemia virus genome. We show that this recombinant polyomavirus displays a strong tissue specificity for the pancreas of mice. This organ was not permissive for either the parental polyomavirus, which is predominantly kidney and salivary gland specific, or the Moloney murine leukemia virus, which is lymphotropic. This result indicated that tissue specificity can be achieved by a combination of apparently modular elements. Some of the implications of a modular mechanism of tissue specificity are considered.
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