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Mutational analysis of transgenic mouse B cell lymphomas: indication of a Trp53-independent pathway in tumor progression.

Abstract：

:Deregulated myc, bcl-2 and/or TP53 gene expression is associated with non-Hodgkin's B cell lymphomas (B-NHLs). Emu-N-myc transgenic mice that misexpress N-myc protein and carry a non-disrupted bcl-2 gene develop indolent B cell lymphomas reminiscent of the B-NHL, follicular lymphoma. Tumors from mice with end-stage disease exhibited discrete, nodular lesions as well as areas of diffuse tumor likely due to coalescence of enlarged follicles. Tumor DNAs were screened for mutations in the Trp53 gene, the murine homologue of the TP53 gene, which participates in B cell differentiation and survival. By PCR-based sequence analyses, we determined there were no mutations in exons 5-8, the common sites of TP53 mutation in B-NHLs. These findings suggested that disease progression in our novel murine lymphoma model may proceed via a Trp53-independent pathogenetic pathway.

journal_name

Leuk Res

journal_title

Leukemia research

authors

Samant SA,Sheppard RD

doi

10.1016/s0145-2126(99)00103-4

keywords:

subject

Has Abstract

pub_date

1999-10-01 00:00:00

pages

939-46

issue

10

eissn

0145-2126

issn

1873-5835

pii

S0145-2126(99)00103-4

journal_volume

23

pub_type

杂志文章

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