Overexpressed in Human Leukemia Lymphoid Malignancy in Transgenic Mice

نویسندگان

  • Yi Xu
  • Takita Felder Sumter
  • Raka Bhattacharya
  • Abeba Tesfaye
  • Ephraim J. Fuchs
  • Lisa J. Wood
  • David L. Huso
  • Linda M. S. Resar
چکیده

HMG-I/Y is overexpressed in human cancer, although a direct role for this gene in transformation has not been established. We generated transgenic mice with HMG-I targeted to lymphoid cells. All seven informative founder HMG-I mice developed aggressive lymphoma by a mean age of 4.8 months. Tumors express T-cell markers and are transplantable. We also demonstrate that HMG-I mRNA and protein are increased in human acute lymphocytic leukemia samples. Our results show that HMG-I functions as an oncogene and suggest that it contributes to the pathogenesis of leukemia and other cancers with increased HMG-I expression.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The HMG-I oncogene causes highly penetrant, aggressive lymphoid malignancy in transgenic mice and is overexpressed in human leukemia.

HMG-I/Y is overexpressed in human cancer, although a direct role for this gene in transformation has not been established. We generated transgenic mice with HMG-I targeted to lymphoid cells. All seven informative founder HMG-I mice developed aggressive lymphoma by a mean age of 4.8 months. Tumors express T-cell markers and are transplantable. We also demonstrate that HMG-I mRNA and protein are ...

متن کامل

The Myc target gene JPO1/CDCA7 is frequently overexpressed in human tumors and has limited transforming activity in vivo.

MYC is frequently overexpressed in human cancers, but the downstream events contributing to tumorigenesis remain incompletely understood. MYC encodes an oncogenic transcription factor, of which target genes presumably contribute to cellular transformation. Although Myc regulates about 15% of genes and combinations of target genes are likely required for tumorigenesis, we studied in depth the ex...

متن کامل

Peripheral T - cell Lymphoma in ZckPr - bcZ - 2 Transgenic Mice

t(14;18) is the most common translocation in human lymphoid malignancy and results in bcl-2 overexpression. bcl-2 blocks apoptosis and constitutes the initial member of a new catagory of oncogenes, ie, regulators of cell death. Bc/-2-/g transgenic mice develop follicular hyperplasia and progress to malignant B-cell lymphoma. To assess the oncogenic potential of bcl-2 in the T-cell lineage, a ...

متن کامل

LYMPHOID NEOPLASIA Brief report PKC is essential for the development of chronic lymphocytic leukemia in the TCL1 transgenic mouse model: validation of PKC as a therapeutic target in chronic lymphocytic leukemia

The development and the propagation of chronic lymphocytic leukemia (CLL) has been linked to signaling via the B-cell receptor (BCR). Protein kinase C (PKC ) is an essential signaling element of the BCR and was recently shown to be overexpressed in human CLL. We used the TCL1 transgenic mouse model to directly target PKC in the development of murine CLL. TCL1 overexpression did restore the CD5 ...

متن کامل

B-cell malignancies in microRNA Eμ-miR-17~92 transgenic mice.

miR-17∼92 is a polycistronic microRNA (miR) cluster (consisting of miR-17, miR-18a, miR-19a, miR-19b, miR-20a, and miR-92a) which frequently is overexpressed in several solid and lymphoid malignancies. Loss- and gain-of-function studies have revealed the role of miR-17∼92 in heart, lung, and B-cell development and in Myc-induced B-cell lymphomas, respectively. Recent studies indicate that overe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2004